Sample records for hydro power development

  1. Case studies of the legal and institutional obstacles and incentives to the development of small-scale hydroelectric power: Bull Run, Portland, Oregon

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    None

    1980-05-01

    The National Conference of State Legislatures' Small-Scale Hydroelectric Policy Project is designed to assist selected state legislatures in looking at the benefits that a state can derive from the development of small-scale hydro, and in carrying out a review of state laws and regulations that affect the development of the state's small-scale hydro resources. The successful completion of the project should help establish state statutes and regulations that are consistent with the efficient development of small-scale hydro. As part of the project's work with state legislatures, seven case studies of small-scale hydro sites were conducted to provide a general analysismore » and overview of the significant problems and opportunities for the development of this energy resource. The case study approach was selected to expose the actual difficulties and advantages involved in developing a specific site. Such an examination of real development efforts will clearly reveal the important aspects about small-scale hydro development which could be improved by statutory or regulatory revision. Moreover, the case study format enables the formulation of generalized opportunities for promoting small-scale hydro based on specific development experiences. The case study for small-scale hydro power development at the City of Portland's water reserve in the Bull Run Forest is presented with information included on the Bull Run hydro power potential, current water usage, hydro power regulations and plant licensing, technical and economic aspects of Bull Run project, and the environmental impact. (LCL)« less

  2. Hydro power plants on the Middle Sava River section

    NASA Astrophysics Data System (ADS)

    Kryžanowski, A.; Horvat, A.; Brilly, M.

    2008-11-01

    Construction of a chain of hydro power plants is planned on the Sava River from Medvode to the Slovenian-Croatian border which will, apart from the chain of HPPs on the Drava River, represent the linchpin of renewable energy production within the Slovenian power system. The mentioned chain of HPPs will also be one of the country's main renewable energy sources that can still be developed for power generation. Three hydro power plants, Moste, Mavčciče and Medvode, are already operating on the Upper Sava River section. Construction of the chain is underway in the lower part of the stream where Vrhovo and Bošstanj HPPs are already in operation; HPP Blanca is under construction and the site planning procedures are taking place for Krško, Brežice and Mokrice HPPs. The planned HPPs on the Middle Sava River section between Medvode and Zidani most will connect the HPPs on the Upper and Lower Sava River into a closed chain which will operate on the principle of run-of-river type power plants with daily storage. Completion of all stages will enable optimal development of available hydro potential. Apart from the energy effects, also other beneficial effects of hydro power plant construction in the region can be expected: flood protection; better water supply; waste water treatment; development of transport and energy networks as well as positive economic and social effects.

  3. Producing more power from existing hydro resources

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    O'Connor, J.

    1993-02-01

    Rehabilitation is big business in the North American hydropower industry. Hydropower producers are replacing or rehabilitating turbines, uprating old hydro generators, and installing advanced control systems. Estimates indicate that as much as 15,000 MW of new electricall generating capacity can be obtained by rehabilitating existing hydro facilities. The cost of developing this capacity is far less than for building new power projects. In most rehabilitation projects, the existing dam, powerhouse, and access roads are retained; only new mechanical and electrica equipment is required. As a result, these projects often can be accomplished for about half the cost of developing amore » new thermal plant to provide an equivalent amount of capacity. This new power does not contribute to atmospheric pollution, cause increases in operations and maintenance costs, or create uncertainties about fuel sources. The Bureau of Reclamation, the Salt River Project, the New York Power Authority, and the Tennessee Valley Authority all are either in the midst of major hydro rehabilitation projects or gearing up for future work. This activity indicates a healthy market of hydro products and services for years to come.« less

  4. 76 FR 24471 - Qualified Hydro 26, LLC; Lock+ Hydro Friends Fund VII; Western Minnesota Municipal Power Agency...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-02

    ...; 14113-000] Qualified Hydro 26, LLC; Lock+ Hydro Friends Fund VII; Western Minnesota Municipal Power... Hydro), Lock+ Hydro Friends Fund VII (Hydro Friends) and Western Minnesota Municipal Power Agency (WMMPA... 02114; (978) 283-2822. Hydro Friends' proposed Lock and Dam 11 Hydropower Project No. 14112 would...

  5. DEVELOPMENT OF COMMUNITY POWER FROM SUSTAINABLE SMALL HYDRO POWER SYSTEMS – A CAPACITY BUILDING PROJECT IN BANGANG, CAMEROON

    EPA Science Inventory

    The hydro-turbine developed in Phase I will be fabricated on-site in Bangang, Cameroon using locally sourced materials. Data of the performance tests will be collected and analyzed using appropriate engineering analysis tools. A second trip will be planned for extensive testin...

  6. Faith in public power paid off for Ontario

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Smart, R.J.

    Ontario Hydro is the result of a grassroots belief that public power would create an industrial tax base and benefit the entire community. After 75 years, Ontario Hydro has $18 billion in assets, a dependable 22.6 thousand-MW peak capacity, and residential utility bills that are only one third of New York City's. The potential of Niagara Falls as a power source prompted a 1902 drive for public power which took another 19 years to realize. An overview of Ontario Hydro's development highlights the role of a 25-man syndicate led by Adam Beck, the influence of Ontario Hydro on the developersmore » of the Tennessee Valley Authority, the tapping of the St. Lawrence River, and the CANDU nuclear program. 1 figure. (DCK)« less

  7. Hydro power flexibility for power systems with variable renewable energy sources: an IEA Task 25 collaboration: Hydro power flexibility for power systems

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Huertas-Hernando, Daniel; Farahmand, Hossein; Holttinen, Hannele

    2016-06-20

    Hydro power is one of the most flexible sources of electricity production. Power systems with considerable amounts of flexible hydro power potentially offer easier integration of variable generation, e.g., wind and solar. However, there exist operational constraints to ensure mid-/long-term security of supply while keeping river flows and reservoirs levels within permitted limits. In order to properly assess the effective available hydro power flexibility and its value for storage, a detailed assessment of hydro power is essential. Due to the inherent uncertainty of the weather-dependent hydrological cycle, regulation constraints on the hydro system, and uncertainty of internal load as wellmore » as variable generation (wind and solar), this assessment is complex. Hence, it requires proper modeling of all the underlying interactions between hydro power and the power system, with a large share of other variable renewables. A summary of existing experience of wind integration in hydro-dominated power systems clearly points to strict simulation methodologies. Recommendations include requirements for techno-economic models to correctly assess strategies for hydro power and pumped storage dispatch. These models are based not only on seasonal water inflow variations but also on variable generation, and all these are in time horizons from very short term up to multiple years, depending on the studied system. Another important recommendation is to include a geographically detailed description of hydro power systems, rivers' flows, and reservoirs as well as grid topology and congestion.« less

  8. Effects of Scandinavian hydro power on storage needs in a fully renewable European power system for various transmission capacity scenarios

    NASA Astrophysics Data System (ADS)

    Kies, Alexander; Nag, Kabitri; von Bremen, Lueder; Lorenz, Elke; Heinemann, Detlev

    2015-04-01

    The penetration of renewable energies in the European power system has increased in the last decades (23.5% share of renewables in the gross electricity consumption of the EU-28 in 2012) and is expected to increase further up to very high shares close to 100%. Planning and organizing this European energy transition towards sustainable power sources will be one of the major challenges of the 21st century. It is very likely that in a fully renewable European power system wind and photovoltaics (pv) will contribute the largest shares to the generation mix followed by hydro power. However, feed-in from wind and pv is due to the weather dependant nature of their resources fluctuating and non-controllable. To match generation and consumption several solutions and their combinations were proposed like very high backup-capacities of conventional power generation (e.g. fossile or nuclear), storages or the extension of the transmission grid. Apart from those options hydro power can be used to counterbalance fluctuating wind and pv generation to some extent. In this work we investigate the effects of hydro power from Norway and Sweden on residual storage needs in Europe depending on the overlaying grid scenario. High temporally and spatially resolved weather data with a spatial resolution of 7 x 7 km and a temporal resolution of 1 hour was used to model the feed-in from wind and pv for 34 investigated European countries for the years 2003-2012. Inflow into hydro storages and generation by run-of-river power plants were computed from ERA-Interim reanalysis runoff data at a spatial resolution of 0.75° x 0.75° and a daily temporal resolution. Power flows in a simplified transmission grid connecting the 34 European countries were modelled minimizing dissipation using a DC-flow approximation. Previous work has shown that hydro power, namely in Norway and Sweden, can reduce storage needs in a renewable European power system by a large extent. A 15% share of hydro power in Europe can reduce storage needs by up to 50% with respect to stored energy. This requires however large transmission capacities between the major hydro power producers in Scandinavia and the largest consumers of electrical energy in Western Europe. We show how Scandinavian hydro power can reduce storage needs in dependency of the transmission grid for two fully renewable scenarios: The first one has its wind and pv generation capacities distributed according to an empirically derived approach. The second scenario has an optimal spatial distribution to minimize storage needs distribution of wind and pv generation capacities across Europe. We show that in both cases hydro power together with a well developed transmission grid has the potential to contribute a large share to the solution of the generation-consumption mismatch problem. The work is part of the RESTORE 2050 project (BMBF) that investigates the requirements for cross-country grid extensions, usage of storage technologies and capacities and the development of new balancing technologies.

  9. Mid and long-term optimize scheduling of cascade hydro-power stations based on modified GA-POA method

    NASA Astrophysics Data System (ADS)

    Li, Jiqing; Yang, Xiong

    2018-06-01

    In this paper, to explore the efficiency and rationality of the cascade combined generation, a cascade combined optimal model with the maximum generating capacity is established, and solving the model by the modified GA-POA method. It provides a useful reference for the joint development of cascade hydro-power stations in large river basins. The typical annual runoff data are selected to calculate the difference between the calculated results under different representative years. The results show that the cascade operation of cascaded hydro-power stations can significantly increase the overall power generation of cascade and ease the flood risk caused by concentration of flood season.

  10. Tech notes: Ongoing or planned hydro research, results of recent studies, and reviews of new books, publications, and software

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    NONE

    Ongoing or planned hydro research, results of recent studies, and reviews of new books, publications, and software are covered. This month`s Tech Notes include: (1) a study linking development and reservoir silting in El Salvador, (2) publication of a guide for small hydro operatos, and (3) publication of a text outlining the development of hydroelectric power in Russia.

  11. Hydro power plants, an overview of the current types and technology

    NASA Astrophysics Data System (ADS)

    Tkáč, Štefan

    2018-03-01

    Despite the long history of hydropower technology and rising number of system harvesting energy from alternative sources, the constant research within hydro power sector becoming increasingly important as the power from water was and still is the leading alternative source of green energy generation, capitalized not necessarily within micro-urban structures only. The advantages of hydro systems involve their relatively low acquisition cost against durability, the possibility of gaining energy independence, relatively high flexibility and adaptability for spatial conditions and energy demands of the end users. Nowadays micro hydro systems could capitalize head range starting at 100cm and the efficiency of hydro systems in general ranges between 65-75% in micro and small applications climbing up to 96% in macro designs. It is mostly due to flexibility in applications, adaptability in combinations with other renewable energy systems and the ability to generate clean, stable, thus reliable energy that makes technical development the most vibrant and noticeable in the micro sphere.

  12. Zambia : long-term generation expansion study - executive summary.

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Conzelmann, G.; Koritarov, V.; Buehring, W.

    2008-02-28

    The objective of this study is to analyze possible long-term development options of the Zambian electric power system in the period up to 2015. The analysis involved the hydro operations studies of the Zambezi river basin and the systems planning studies for the least-cost generation expansion planning. Two well-known and widely accepted computer models were used in the analysis: PC-VALORAGUA model for the hydro operations and optimization studies and the WASP-III Plus model for the optimization of long-term system development. The WASP-III Plus model is a part of the Argonne National Laboratory's Energy and Power Evaluation Model (ENPEP). The analysismore » was conducted in close collaboration with the Zambia Electricity Supply Corporation (ZESCO). On the initiative from The World Bank, the sponsor of the study, ZESCO formed a team of experts that participated in the analysis and were trained in the use of computer models. Both models were transferred to ZESCO free of charge and installed on several computers in the ZESCO corporate offices in Lusaka. In September-October 1995, two members of the ZESCO National Team participated in a 4-week training course at Argonne National Laboratory near Chicago, U.S.A., focusing on the long-term system expansion planning using the WASP and VALORAGUA models. The hydropower operations studies were performed for the whole Zambezi river basin, including the full installation of the Kariba power station, and the Cahora Bassa hydro power station in Mozambique. The analysis also included possible future projects such as Itezhi-Tezhi, Kafue Gorge Lower, and Batoka Gorge power stations. As hydropower operations studies served to determine the operational characteristics of the existing and future hydro power plants, it was necessary to simulate the whole Zambezi river basin in order to take into account all interactions and mutual influences between the hydro power plants. In addition, it allowed for the optimization of reservoir management and optimization of hydro cascades, resulting in the better utilization of available hydro potential. Numerous analyses were performed for different stages of system development. These include system configurations that correspond to years 1997, 2001, 2015 and 2020. Additional simulations were performed in order to determine the operational parameters of the three existing hydro power stations Victoria Falls, Kariba, and Kafue Gorge Upper, that correspond to the situation before and after their rehabilitation. The rehabilitation works for these three major power stations, that would bring their operational parameters and availability back to the design level, are planned to be carried out in the period until 2000. The main results of the hydro operations studies are presented in Table ES-1. These results correspond to VALORAGUA simulations of system configurations in the years 2001 and 2015. The minimum, average, and maximum electricity generation is based on the simulation of monthly water inflows that correspond to the chronological series of unregulated water inflows at each hydro profile in the period from April 1961 to March 1990. The recommended hydrology dataset provided in the Hydrology Report of the SADC Energy Project AAA 3.8 was used for this study.« less

  13. 77 FR 13592 - AER NY-Gen, LLC; Eagle Creek Hydro Power, LLC, Eagle Creek Water Resources, LLC, Eagle Creek Land...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-07

    ...; Eagle Creek Hydro Power, LLC, Eagle Creek Water Resources, LLC, Eagle Creek Land Resources, LLC; Notice... 24, 2012, AER NY-Gen, LLC (transferor), Eagle Creek Hydro Power, LLC, Eagle Creek Water Resources.... Cherry, Eagle Creek Hydro Power, LLC, Eagle Creek Water Resources, LLC, and Eagle Creek Land Resources...

  14. NASA Fuel Tank Wireless Power and Signal Study

    NASA Technical Reports Server (NTRS)

    Merrill, Garrick

    2015-01-01

    Hydro Technologies has developed a custom electronics and mechanical framework for interfacing with off-the-shelf sensors to achieve through barrier sensing solutions. The core project technology relies on Hydro Technologies Wireless Power and Signal Interface (Wi psi) System for transmitting data and power wirelessly using magnetic fields. To accomplish this, Wi psi uses a multi-frequency local magnetic field to produce magnetic fields capable of carrying data and power through almost any material such as metals, seawater, concrete, and air. It will also work through layers of multiple materials.

  15. Working together to ensure safety at hydro projects

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Bartel, J.W.

    Providing for public safety around a hydroelectric facility can be critically important to the welfare of a hydro-power producer. With this in mind, Wisconsin Electric Power Company and Wisconsin Public Service Corporation have worked together to develop consistent safety signage and several for their hydro projects. Although the two utilities sometimes compete for electric customers, they cooperate to ensure the safety to those customers. Both WE and WPS took steps in 1986 to make their operations safer through involvement in the Wisconsin/Michigan Hydro User Group. The organization has 25 members-primarily of electric utilities and paper companies-who operate hydro facilities inmore » the two states. The two areas that the HUG studied in public safety were signs and warning systems. HUG established a sign committee to study how to increase safety of people around hydro plants through signs, explained Ted Handrick, hydro plant superintendent at WPS. The committee's recommendations led to development of a statewide uniform sign system adopted by all HUG members. The committee used Wisconsin Department of Natural Resources' guidelines for warning signs and portages in developing the signage standards. HUG members are converting to these new sign standards as they replace old signs and/or install new signs. Notices describing the new signage system have been placed near each hydro plant, at boat landings, and in campgrounds. The signs are mounted well above ground level so they can be seen and easily read by recreationalists. Warning systems, in accordance with HUG warning standards, were installed at WE and WPS hydro facilities. These systems alert nearby recreational users of rapid increases in water flow when generating units are turned on or when spillway gates are opened. Soon after the authors installed equipment to remotely operate its hydro facilities, the utility experienced a dramatic increase increase in intrusion on dams and other structures at the projects.« less

  16. Small-Scale Hydroelectric Power in the Southwest: New Impetus for an old Energy Source

    NASA Astrophysics Data System (ADS)

    1980-06-01

    A forum was provided for state legislators and other interested persons to discuss the problems facing small scale hydro developers, and to recommend appropriate solutions to resolve those problems. Alternative policy options were recommended for consideration by both state and federal agencies. Emphasis was placed on the legal, institutional, environmental and economic barriers at the state level, as well as the federal delays associated with licensing small scale hydro projects. Legislative resolution of the problems and delays in small scale hydro licensing and development were also stressed.

  17. DEVELOPMENT OF COMMUNITY POWER FROM SUSTAINABLE SMALL HYDRO POWER SYSTEMS – ACAPACITY BUILDING PROJECT IN BANGANG, CAMEROON

    EPA Science Inventory

    Electric power is one of the basic needs for the development of any community. With electric power lacking in most rural communities in Africa, providing basic amenities that are dependent on power such as clean portable drinking water, powering equipment in health and dent...

  18. Modeling and Optimization of Coordinative Operation of Hydro-wind-photovoltaic Considering Power Generation and Output Fluctuation

    NASA Astrophysics Data System (ADS)

    Wang, Xianxun; Mei, Yadong

    2017-04-01

    Coordinative operation of hydro-wind-photovoltaic is the solution of mitigating the conflict of power generation and output fluctuation of new energy and conquering the bottleneck of new energy development. Due to the deficiencies of characterizing output fluctuation, depicting grid construction and disposal of power abandon, the research of coordinative mechanism is influenced. In this paper, the multi-object and multi-hierarchy model of coordinative operation of hydro-wind-photovoltaic is built with the aim of maximizing power generation and minimizing output fluctuation and the constraints of topotaxy of power grid and balanced disposal of power abandon. In the case study, the comparison of uncoordinative and coordinative operation is carried out with the perspectives of power generation, power abandon and output fluctuation. By comparison from power generation, power abandon and output fluctuation between separate operation and coordinative operation of multi-power, the coordinative mechanism is studied. Compared with running solely, coordinative operation of hydro-wind-photovoltaic can gain the compensation benefits. Peak-alternation operation reduces the power abandon significantly and maximizes resource utilization effectively by compensating regulation of hydropower. The Pareto frontier of power generation and output fluctuation is obtained through multiple-objective optimization. It clarifies the relationship of mutual influence between these two objects. When coordinative operation is taken, output fluctuation can be markedly reduced at the cost of a slight decline of power generation. The power abandon also drops sharply compared with operating separately. Applying multi-objective optimization method to optimize the coordinate operation, Pareto optimal solution set of power generation and output fluctuation is achieved.

  19. Role of pump hydro in electric power systems

    NASA Astrophysics Data System (ADS)

    Bessa, R.; Moreira, C.; Silva, B.; Filipe, J.; Fulgêncio, N.

    2017-04-01

    This paper provides an overview of the expected role that variable speed hydro power plants can have in future electric power systems characterized by a massive integration of highly variable sources. Therefore, it is discussed the development of a methodology for optimising the operation of hydropower plants under increasing contribution from new renewable energy sources, addressing the participation of a hydropower plant with variable speed pumping in reserve markets. Complementarily, it is also discussed the active role variable speed generators can have in the provision of advanced frequency regulation services.

  20. 75 FR 11150 - Free Flow Power Qualified Hydro 23, LLC; Notice of Preliminary Permit Application Accepted for...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-10

    ... Qualified Hydro 23, LLC; Notice of Preliminary Permit Application Accepted for Filing and Soliciting... Power Qualified Hydro 23, LLC (FFP Qualified Hydro 23) filed an application for a preliminary permit... new 2.6-mile- long, 23-kilovolt transmission line; and (5) appurtenant facilities. The proposed...

  1. 78 FR 62627 - Sam Rayburn Dam Rate

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-22

    ..., Wholesale Rates for Hydro Power and Energy Sold to Sam Rayburn Dam Electric Cooperative, Inc. (Contract No... Schedule SRD-08, Wholesale Rates for Hydro Power and Energy Sold to Sam Rayburn Dam Electric Cooperative... ADMINISTRATION RATE SCHEDULE SRD-13 \\1\\ WHOLESALE RATES FOR HYDRO POWER AND ENERGY SOLD TO SAM RAYBURN DAM...

  2. 75 FR 27332 - AER NY-Gen, LLC; Eagle Creek Hydro Power, LLC; Eagle Creek Water Resources, LLC; Eagle Creek Land...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-14

    ... 9690-106] AER NY-Gen, LLC; Eagle Creek Hydro Power, LLC; Eagle Creek Water Resources, LLC; Eagle Creek... Power, LLC, Eagle Creek Water Resources, LLC, and Eagle Creek Land Resources, LLC (transferees) filed an.... Paul Ho, Eagle Creek Hydro Power, LLC, Eagle Creek Water Resources, LLC, and Eagle Creek Land Resources...

  3. The shallow water equations as a hybrid flow model for the numerical and experimental analysis of hydro power stations

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Ostermann, Lars; Seidel, Christian

    2015-03-10

    The numerical analysis of hydro power stations is an important method of the hydraulic design and is used for the development and optimisation of hydro power stations in addition to the experiments with the physical submodel of a full model in the hydraulic laboratory. For the numerical analysis, 2D and 3D models are appropriate and commonly used.The 2D models refer mainly to the shallow water equations (SWE), since for this flow model a large experience on a wide field of applications for the flow analysis of numerous problems in hydraulic engineering already exists. Often, the flow model is verified bymore » in situ measurements. In order to consider 3D flow phenomena close to singularities like weirs, hydro power stations etc. the development of a hybrid fluid model is advantageous to improve the quality and significance of the global model. Here, an extended hybrid flow model based on the principle of the SWE is presented. The hybrid flow model directly links the numerical model with the experimental data, which may originate from physical full models, physical submodels and in-situ measurements. Hence a wide field of application of the hybrid model emerges including the improvement of numerical models and the strong coupling of numerical and experimental analysis.« less

  4. Optimal Capacity Proportion and Distribution Planning of Wind, Photovoltaic and Hydro Power in Bundled Transmission System

    NASA Astrophysics Data System (ADS)

    Ye, X.; Tang, Q.; Li, T.; Wang, Y. L.; Zhang, X.; Ye, S. Y.

    2017-05-01

    The wind, photovoltaic and hydro power bundled transmission system attends to become common in Northwest and Southwest of China. To make better use of the power complementary characteristic of different power sources, the installed capacity proportion of wind, photovoltaic and hydro power, and their capacity distribution for each integration node is a significant issue to be solved in power system planning stage. An optimal capacity proportion and capacity distribution model for wind, photovoltaic and hydro power bundled transmission system is proposed here, which considers the power out characteristic of power resources with different type and in different area based on real operation data. The transmission capacity limit of power grid is also considered in this paper. Simulation cases are tested referring to one real regional system in Southwest China for planning level year 2020. The results verify the effectiveness of the model in this paper.

  5. Analysis of Axial Turbine Pico-Hydro Electrical Power Plant in North Sulawesi Indonesia

    NASA Astrophysics Data System (ADS)

    Sangari, F. J.; Rompas, P. T. D.

    2018-02-01

    This study presents analysis of pico-hydro electrical power plant in North Sulawesi, Indonesia. The objective of this study is to get a design of axial turbine pico-hydro electrical power plant. The method used the study of literature, survey the construction site of the power plant and the characteristics of the location being a place of study, analysis of hydropower ability and analyzing costs of power plant. The result showed that the design of axial turbine pico-hydro installation is connected to a generator to produce electrical energy maximum can be used for household needs in villages. This analyze will be propose to local government of Minahasa, North Sulawesi, Indonesia.

  6. 77 FR 2972 - Thunder Bay Power Company, Thunder Bay Power, LLC, et al.

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-20

    ... Hydro, LLC. Dayton Fox River, LaSalle County, IL. P-2347-049 Midwest Hydro, Inc. Midwest Hydro, LLC... FR, Neenah Paper FR, Middle Appleton Dam Lower Fox River, LLC and N.E.W. LLC and N.E.W. Outagamie...

  7. How can small hydro energy and other renewable energy mitigate impact of climate change in remote Central Africa: Cameroon case study.

    NASA Astrophysics Data System (ADS)

    Kenfack, Joseph; Bignom, Blaise

    2015-04-01

    Central Africa owns important renewable energy potential, namely hydro, solar and biomass. This important potential is still suffering from poor development up to the point where the sub region is still abundantly using the fossil energy and biomass as main power source. This is harmful to the climate and the situation is still ongoing. The main cause of the poor use of renewable energy is the poor management of resources by governments who have not taken the necessary measures to boost the renewable energy sector. Since the region is experiencing power shortage, thermal plants are among other solutions planned or under construction. Firewood is heavily used in remote areas without a sustainability program behind. This solution is not environment friendly and hence is not a long term solution. Given the fact that the region has the highest hydro potential of the continent, up to one-quarter of the world's tropical forest, important oil production with poor purchase power, the aim of this paper is to identify actions for improved access to sustainable, friendly, affordable energy services to users as well as a significant improvement of energy infrastructure in Central Africa and the promotion of small hydro and other renewable energy. The work will show at first the potential for the three primary energy sources which are solar, biomass and hydro while showing where available the level of development, with an emphasis on small hydro. Then identified obstacles for the promotion of clean energy will be targeted. From lessons learned, suggestions will be made to help the countries develop an approach aiming at developing good clean energy policy to increase the status of renewable energy and better contribute to fight against climate change. Cameroon has a great renewable energy potential and some data are available on energy. From the overview of institutional structure reform of the Cameroon power sector and assessments, specific suggestions based on the weaknesses of the current management of renewable energy sources will be made for the enhancement of the renewable energy and hence sustain energy access and security in general and in remote areas in particular where the fight against poverty is more difficult. We will use several documents, soft and hard from institutions in the region and abroad, and maps when available. |End Text|

  8. 77 FR 37391 - Combined Notice of Filings #2

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-21

    ...: Bear Swamp Power Company LLC, Brookfield Energy Marketing Inc., Brookfield Energy Marketing LP... Power, LLC, Great Lakes Hydro America LLC, Hawks Nest Hydro LLC, Longview Fibre Paper and Packaging, Inc., Rumford Falls Hydro LLC. Description: Supplement to Notice of Non-Material Change in Status of Bear Swamp...

  9. DOE Office of Scientific and Technical Information (OSTI.GOV)

    Gorlov, A.M.

    This report contains conclusive results of the research project entitled ``Further Development of the Pneumatic Method to Harness Hydropower and its Experimental Implementation in the State of Maine`` sponsored by the US Department of Energy (Contract DE-FG02-91ER12113). The results obtained by this research are considerably beyond the original goals anticipated by the contract which were a theoretical study of the method only and its possible applications. In fact, the success of the analytical research program has allowed us to move on to development, construction and testing of a physical model of the hydro-air power converter and, subsequently, to development ofmore » a well equipped hydro-pneumatic power laboratory at Northeastern University. Photographs la and 2a show both the laboratory and the model. Good performance of the model proves that the hydro-pneumatic concept holds much promise for development of an ecologically safe and commercially attractive novel approach to harnessing ultra low-head hydropower. As a result, private companies have started to support this new technology, and to invest money in its further development and construction of demonstration power plants (Appendix 1). Visitors at the Northeastern University laboratory often praise this new technique, as is attested by the articles in the Wall Street Journal (Appendix 2) and the Technology Review (Appendix 3).« less

  10. Hydro-Quebec is at it again

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Hamilton, G.

    1993-12-31

    When New York governor Mario Cuomo pulled the plug on a purchase of 1,000 megawatts of power from Hydro-Quebec last June, the provincial utility talked tough. The cancellation, a senior Hydro-Quebec official claimed, would not jeopardize the future of its controversial Great Whale hydro project in the North. Bu Hydro-Quebec has quietly shoved Great Whale onto the back burner while an environmental review is underway. In the meantime the utility is barreling ahead with another mega-dam. The Ste. Marquerite project planned for north-eastern Quebec is modest by Hydro-Quebec standards, generating less than a third the power of Great Whale. Still,more » with an 880-megawatt power station and 190 square miles of reservoirs, it is one of the largest hydro projects on any drawing board in North America. Environmentalists say it is being pushed ahead without a serious study of its impacts. This article details the environmental impacts of the project, and the extended impacts, not yet accounted for.« less

  11. 78 FR 62350 - FFP Qualified Hydro 14, LLC; Western Minnesota Municipal Power Agency; Notice Announcing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-18

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 13579-002; Project No. 14491-000] FFP Qualified Hydro 14, LLC; Western Minnesota Municipal Power Agency; Notice Announcing... applications were filed by FFP Qualified Hydro 14, LLC for Project No. 13579-002 and Western Minnesota...

  12. Analysis of a pico tubular-type hydro turbine performance by runner blade shape using CFD

    NASA Astrophysics Data System (ADS)

    Park, J. H.; Lee, N. J.; Wata, J. V.; Hwang, Y. C.; Kim, Y. T.; Lee, Y. H.

    2012-11-01

    There has been a considerable interest recently in the topic of renewable energy. This is primarily due to concerns about environmental impacts of fossil fuels. Moreover, fluctuating and rising oil prices, increase in demand, supply uncertainties and other factors have led to increased calls for alternative energy sources. Small hydropower, among other renewable energy sources, has been evaluated to have adequate development value because it is a clean, renewable and abundant energy resource. In addition, small hydropower has the advantage of low cost development by using rivers, agricultural reservoirs, sewage treatment plants, waterworks and water resources. The main concept of the tubular-type hydro turbine is based on the difference in water pressure levels in pipe lines, where the energy which was initially wasted by using a reducing valve at the pipeline of waterworks, is collected by turbine in the hydro power generator. In this study, in order to acquire the performance data of a pico tubular-type hydro turbine, the output power, head and efficiency characteristics by different runner blade shapes are examined. The pressure and velocity distributions with the variation of guide vane and runner vane angle on turbine performance are investigated by using a commercial CFD code.

  13. 78 FR 72879 - Western Minnesota Municipal Power Agency; Lock+ Hydro Friends Fund III, LLC; Notice Announcing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-04

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 14540-000; Project No. 14539-000] Western Minnesota Municipal Power Agency; Lock+ Hydro Friends Fund III, LLC; Notice.... 14540-000 2. Lock+ Hydro Friends Fund III, LLC Project No. 14539-000 Dated: November 26, 2013. Nathaniel...

  14. Hydro turbine governor’s power control of hydroelectric unit with sloping ceiling tailrace tunnel

    NASA Astrophysics Data System (ADS)

    Fu, Liang; Wu, Changli; Tang, Weiping

    2018-02-01

    The primary frequency regulation and load regulation transient process when the hydro turbine governor is under the power mode of hydropower unit with sloping ceiling tailrace are analysed by field test and numerical simulation in this paper. A simulation method based on “three-zone model” to simulate small fluctuation transient process of the sloping ceiling tailrace is proposed. The simulation model of hydraulic turbine governor power mode is established by governor’s PLC program identification and parameter measurement, and the simulation model is verified by the test. The slow-fast-slow “three-stage regulation” method which can improve the dynamic quality of hydro turbine governor power mode is proposed. The power regulation strategy and parameters are optimized by numerical simulation, the performance of primary frequency regulation and load regulation transient process when the hydro turbine governor is under power mode are improved significantly.

  15. DOE Office of Scientific and Technical Information (OSTI.GOV)

    Rehder, J.B.

    The project focuses on an appropriate technology for small-scale hydro power: floating waterwheels and turbines. For background, relic and existing systems such as early floating mills, traditional Amish waterwheels, and micro-hydro systems are examined. In the design phase of the project, new designs for Floating Hydro Power Systems include: an analysis of floatation materials and systems; a floating undershot waterwheel design; a floating cylinder (fiberglass storage tank) design; a submerged tube design; and a design for a floating platform with submerged propellers. Finally, in the applications phase, stream flow data from East Tennessee streams are used in a discussion ofmore » the potential applications of floating hydro power systems in small streams.« less

  16. Analysis of Power Planning Deviation Influence on the Non-fossil Energy Development Goal

    NASA Astrophysics Data System (ADS)

    Xu, Wei-ting; Li, Ting; Ye, Qiang; Mi, Zhu; Ying, Liu; Tao, Yu-xuan

    2017-05-01

    Due to the international circumstances changes and domestic economic restructuring, the policies and planning of energy development have been adjusting in recent years, especially in energy power industry. Under these influences, the Chinese energy development goal “non-fossil energy accounts for 15% of the primary energy consumption” which planned to be realized in 2020 becomes uncertain. To ensure the goal can be achieved, a new energy power planning scheme is provided. Based on this planning scheme, the sensitivity analysis method and the maximum deviation method are proposed to quantify the influence of planning deviation on the target percentage. At the same time, the energy replacement is provided to fill the deviation. Research results shows that the main influence factors of target percentage is the hydro and nuclear power develop scale and their output channel construction. If the hydro and nuclear power capacity can’t reach their target scale, wind and solar power capacity can fill the vacancy instead. But if the vacancy of hydropower exceeds 58GW, or vacancy of nuclear power exceeds 27GW, the “15% goal” would be very difficult to achieve. Accelerating the construction of the hydropower output transmission lines helps to guarantee the "15% goal".

  17. 78 FR 66785 - Korea Hydro and Nuclear Power Co., Ltd., and Korea Electric Power Corporation

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-06

    ... NUCLEAR REGULATORY COMMISSION [Project No. 0782; NRC-2013-0244] Korea Hydro and Nuclear Power Co., Ltd., and Korea Electric Power Corporation AGENCY: Nuclear Regulatory Commission. ACTION: Notice of receipt; availability. SUMMARY: The U.S. Nuclear Regulatory Commission (NRC) staff acknowledges receipt of...

  18. Revitalising the nuclear business at Ontario Hydro

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Talbot, K.

    1994-12-31

    Ontario Hydro, North America`s largest electric Power utility, with an installed capacity of (34,000 MW) has undergone a major restructuring over the Past year to better align itself with a changing electricity market and evolving customer needs. After expanding for decades in step with the steady and continuous growth in electricity demands Ontario Hydro is now in its fifth straight Year Of flat or declining sales at about 136.5 TWhrs/year with little indication that demand growth will return to historic levels within the predictable future. This prolonged and unexpected decline in power demand coincided with the completion of the four-unit,more » 3600 megawatt Darlington Nuclear Generating Station and other major investments in new and existing transmission and generation facilities. These investments, coupled with the decline in sales, have put Hydro under severe financial pressure, necessitating rate increases totalling 30 percent between 1990 and 1993, and sparking intense customer criticism and political Pressure. Hydro`s new Chairman, Maurice Strong, responded by initiating a major restructuring of the organization last year into focused business units, designed to be more flexible and adaptive to customer needs, and more responsive to market and bottom line pressures; maintaining rate increases at or below inflation for the remainder of the decade and reducing the debt (currently 34B$Cdn), as well as becoming a world leader in sustainable energy development were the significant missions of change. In addition, the staff levels at Ontario Hydro were reduced from 27,800 by over 6,600, mostly the result of early retirement and voluntary separation programs.« less

  19. 76 FR 51961 - Brown Bear Power, LLC, Topsham Hydroelectric Generating Facility Trust No. 1, Topsham Hydro...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-19

    ... On August 3, 2011, Brown Bear Power, LLC, Topsham Hydroelectric Generating Facility (Trust No. 1... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 4784-082] Brown Bear Power, LLC, Topsham Hydroelectric Generating Facility Trust No. 1, Topsham Hydro Partners Limited Partnership...

  20. Processus de modelisation et etude des orages geomagnetiques dans les reseaux electriques: Impact sur le reseau de transport d'Hydro-Quebec

    NASA Astrophysics Data System (ADS)

    Abdellaoui, Amr

    This research project presents a complete modelling process of the effects of GIC on Hydro-Quebec power system network for system planning studies. The advantage of the presented method is that it enables planning engineers to simulate the effects of geomagnetic disturbances on the Hydro-Quebec System under different conditions and contingencies within reasonable calculation time frame. This modelling method of GIC in electric power systems has been applied to the Hydro-Quebec System. An equivalent HQ DC model has been achieved. A numerical calculation method of DC sources from a non-uniform geoelectric field has been developed and implemented on HQ DC model. Harmonics and increased reactive power losses of saturated transformers have been defined as a function of GIC through a binary search algorithm using a chosen HQ magnetization curve. The evolution in time of each transformer saturation according to its effective GIC has been evaluated using analytical formulas. The reactive power losses of saturated transformers have been modeled in PSS/E[1] HQ network as constant reactive current loads assigned to the corresponding transformer buses. Finally, time domain simulations have been performed with PSS/E taking into account transformer saturation times. This has been achieved by integrating HQ DC model results and analytical calculations results of transformer saturation times into an EMTP load model. An interface has been used to link EMTP load model to HQ PSS/E network. Different aspects of GIC effects on the Hydro-Quebec system have been studied, including the influence of uniform and non-uniform geoelectric fields, the comparison of reactive power losses of the 735kV HQ system with those of Montreal network, the risks to voltage levels and the importance of reactive power dynamic reserve. This dissertation presents a new GIC modelling approach for power systems for planning and operations purposes. This methodology could be further enhanced, particularly, the aspect regarding the transformer saturation times. Hence more research remains to be pursued in this area.

  1. Non-linear multi-objective model for planning water-energy modes of Novosibirsk Hydro Power Plant

    NASA Astrophysics Data System (ADS)

    Alsova, O. K.; Artamonova, A. V.

    2018-05-01

    This paper presents a non-linear multi-objective model for planning and optimizing of water-energy modes for the Novosibirsk Hydro Power Plant (HPP) operation. There is a very important problem of developing a strategy to improve the scheme of water-power modes and ensure the effective operation of hydropower plants. It is necessary to determine the methods and criteria for the optimal distribution of water resources, to develop a set of models and to apply them to the software implementation of a DSS (decision-support system) for managing Novosibirsk HPP modes. One of the possible versions of the model is presented and investigated in this paper. Experimental study of the model has been carried out with 2017 data and the task of ten-day period planning from April to July (only 12 ten-day periods) was solved.

  2. 76 FR 35209 - FFP Qualified Hydro 14 LLC; Notice of Intent To File License Application, Filing of Pre...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-16

    ...: April 4, 2011. d. Submitted by: Free Flow Power Qualified Hydro 14 LLC (Qualified Power 14 LLC), a subsidiary of Free Flow Power Corporation. e. Name of Project: Saylorville Dam Water Power Project. f... County, Iowa. The project would occupy 1.5 acres of United States lands administered by Corps' Rock...

  3. Sustainability Challenge of Micro Hydro Power Development in Indonesia

    NASA Astrophysics Data System (ADS)

    Didik, H.; Bambang, P. N.; Asep, S.; Purwanto, Y. A.

    2018-05-01

    Rural electrification using renewable energy is the best choice for many locations that far away from national grid. Many renewable energy project have been built for rural electrification such as micro hydro power plant (MHPP) and solar photovoltaic (SPV). Sustainability still the main challenge of off-grid renewable energy development for off-grid rural electrification in Indonesia. The objective of this paper is to review sustainability of micro hydro power development in Indonesia. The research method was done by field observation, interview with MHPP management, and reviewing some research about MHPP in Indonesia. Sustainability issues include various aspects that can be classified into 5 dimensions: technical, economic, socio-cultural, institutional, and environmental. In technical factors that lead to sustainability problem are: improper MHPP design and construction, improper operation and maintenance, availability of spare parts and expertise. In the economic dimension are generally related to: low electricity tariff and utilization of MHPP for productive use. In the social dimension are: the growth of consumer’s load exceeding the capacity, reduced number of consumers, lack of external institutional support. In the institutional side, it is generally related to the ability of human resources in managing, operating and maintaining of MHPP. Environmental factors that lead the sustainability problems of MHPP are: scarcity of water discharge, conflict of water resources, land conversion over the watershed, and natural disasters.

  4. THE WIDE-AREA ENERGY STORAGE AND MANAGEMENT SYSTEM PHASE II Final Report - Flywheel Field Tests

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Lu, Ning; Makarov, Yuri V.; Weimar, Mark R.

    2010-08-31

    This research was conducted by Pacific Northwest National Laboratory (PNNL) operated for the U.S. department of Energy (DOE) by Battelle Memorial Institute for Bonneville Power Administration (BPA), California Institute for Energy and Environment (CIEE) and California Energy Commission (CEC). A wide-area energy management system (WAEMS) is a centralized control system that operates energy storage devices (ESDs) located in different places to provide energy and ancillary services that can be shared among balancing authorities (BAs). The goal of this research is to conduct flywheel field tests, investigate the technical characteristics and economics of combined hydro-flywheel regulation services that can be sharedmore » between Bonneville Power Administration (BPA) and California Independent System Operator (CAISO) controlled areas. This report is the second interim technical report for Phase II of the WAEMS project. This report presents: 1) the methodology of sharing regulation service between balancing authorities, 2) the algorithm to allocate the regulation signal between the flywheel and hydro power plant to minimize the wear-and-tear of the hydro power plants, 3) field results of the hydro-flywheel regulation service (conducted by the Beacon Power), and 4) the performance metrics and economic analysis of the combined hydro-flywheel regulation service.« less

  5. Court refuses to reconsider Hydro-Quebec case

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Not Available

    1993-02-01

    A US court has denied a request that it reconsider a decision upholding Hydro-Quebec's $4 billion sale of 340 MW to 16 Vermont utilities. The Vermont Supreme Court issued the decision in October, rejecting arguments that the contract would result in construction of Hydro-Quebec's giant Grande Baleine (Great Whale) hydroelectric development, flooding Creek Indian lands and harming waterfowl. The Vermont Public Service Board endorsed the 340-MW sale - the continuation of a previous sale - to 24 utilities in 1990, but rejected sale of an additional 110 MW without more proof that the power is needed and that its generationmore » would not cause undue environmental damage. Since 1990, one utility merged with another, and seven withdrew from the contract, leaving 16 buyers. The New England Coalition for Energy Efficiency and the Environment and the Grand Council of the Cree appealed the Public Service Board approval. The high court agreed with the Public Service Board that the 340-MW purchase - a fraction of Hydro-Quebec's total 24,000-MW output - is a continuation of an earlier purchase and that no new construction at James Bay is necessary to supply the power. That finding undercut arguments about Grande Baleine's effects on the Cree.« less

  6. 75 FR 6018 - Boyce Hydro Power, LLC; Notice of Application for Amendment of License and Soliciting Comments...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-05

    .... d. Applicant: Boyce Hydro Power, LLC (BHP). e. Name of Project: Edenville Hydroelectric Project. f... construct the footings and first lift of the retaining walls. BHP states that shutting off the bypass flow...

  7. 76 FR 42124 - River Bounty, Inc.; Renew Hydro, LLC; Notice of Transfer of Exemption

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-18

    ....; Renew Hydro, LLC; Notice of Transfer of Exemption 1. By letters filed April 19, April 20, and May 4... Hydroelectric Project No. 5730, originally issued June 9, 1982,\\1\\ has been transferred to Renew Hydro, LLC. The... exemption does not require Commission approval. \\1\\ American Hydro Power Co., 19 FERC ] 62,426 (1982). 2...

  8. Neuro-Fuzzy Computational Technique to Control Load Frequency in Hydro-Thermal Interconnected Power System

    NASA Astrophysics Data System (ADS)

    Prakash, S.; Sinha, S. K.

    2015-09-01

    In this research work, two areas hydro-thermal power system connected through tie-lines is considered. The perturbation of frequencies at the areas and resulting tie line power flows arise due to unpredictable load variations that cause mismatch between the generated and demanded powers. Due to rising and falling power demand, the real and reactive power balance is harmed; hence frequency and voltage get deviated from nominal value. This necessitates designing of an accurate and fast controller to maintain the system parameters at nominal value. The main purpose of system generation control is to balance the system generation against the load and losses so that the desired frequency and power interchange between neighboring systems are maintained. The intelligent controllers like fuzzy logic, artificial neural network (ANN) and hybrid fuzzy neural network approaches are used for automatic generation control for the two area interconnected power systems. Area 1 consists of thermal reheat power plant whereas area 2 consists of hydro power plant with electric governor. Performance evaluation is carried out by using intelligent (ANFIS, ANN and fuzzy) control and conventional PI and PID control approaches. To enhance the performance of controller sliding surface i.e. variable structure control is included. The model of interconnected power system has been developed with all five types of said controllers and simulated using MATLAB/SIMULINK package. The performance of the intelligent controllers has been compared with the conventional PI and PID controllers for the interconnected power system. A comparison of ANFIS, ANN, Fuzzy and PI, PID based approaches shows the superiority of proposed ANFIS over ANN, fuzzy and PI, PID. Thus the hybrid fuzzy neural network controller has better dynamic response i.e., quick in operation, reduced error magnitude and minimized frequency transients.

  9. Cost of enlarged operating zone for an existing Francis runner

    NASA Astrophysics Data System (ADS)

    Monette, Christine; Marmont, Hugues; Chamberland-Lauzon, Joël; Skagerstrand, Anders; Coutu, André; Carlevi, Jens

    2016-11-01

    Traditionally, hydro power plants have been operated close to best efficiency point, the more stable operating condition for which they have been designed. However, because of changes in the electricity market, many hydro power plants operators wish to operate their machines differently to fulfil those new market needs. New operating conditions can include whole range operation, many start/stops, extensive low load operation, synchronous condenser mode and power/frequency regulation. Many of these new operating conditions may impose more severe fatigue damage than the traditional base load operation close to best efficiency point. Under these conditions, the fatigue life of the runner may be significantly reduced and reparation or replacement cost might occur sooner than expected. In order to design reliable Francis runners for those new challenging operating scenarios, Andritz Hydro has developed various proprietary tools and design rules. These are used within Andritz Hydro to design mechanically robust Francis runners for the operating scenarios fulfilling customer's specifications. To estimate residual life under different operating scenarios of an existing runner designed years ago for best efficiency base load operation, Andritz Hydro's design rules and tools would necessarily lead to conservative results. While the geometry of a new runner can be modified to fulfil all conservative mechanical design rules, the predicted fatigue life of an existing runner under off-design operating conditions may appear rather short because of the conservative safety factor included in the calculations. The most precise and reliable way to calculate residual life of an existing runner under different operating scenarios is to perform a strain gauge measurement campaign on the runner. This paper presents the runner strain gage measurement campaign of a mid-head Francis turbine over all the operating conditions available during the test, the analysis of the measurement signals and the runner residual life assessment under different operating scenarios. With these results, the maintenance cost of the change in operating mode can then be calculated and foreseen by the power plant owner.

  10. Mechanism of emergence of intense vibrations of turbines on the Sayano-Shushensk hydro power plant

    NASA Astrophysics Data System (ADS)

    Kurzin, V. B.; Seleznev, V. S.

    2010-07-01

    It is demonstrated that the level of vibrations of turbines on the Sayano-Shushensk hydro power plant is enhanced by the capability of a compressible fluid to perform its own hydroacoustic oscillations (which can be unstable) in the turbine duct. Based on the previously obtained results of solving the problem of natural hydroacoustic oscillations in the turbine duct and some ideas about turbine interaction with an unsteady compressible fluid flow, results of full-scale studies of turbine vibrations and seismic monitoring of the dam of the Sayano-Shushensk hydro power plant before and during the accident are analyzed.

  11. Study of the Interrelationships between Minimum Flow Release Policies and Hydroelectric Power Development in New England.

    DTIC Science & Technology

    1981-06-01

    available information from Public Utilities comaissions responsible for establishing PURPA rates in each state. 1.4 PRINCIPAL FINDINGS The direct effect all... PURPA rates. However, many of those categorized as private and public developers are private and public utilities. This reflects the interest in hydro...The Public Utility Regulatory Policies Act ( PURPA ) of 1978 empowered FERC to prescribe rules requiring utilities to purchase power from and sell power

  12. Development of a hydro kinetic river turbine with simulation and operational measurement results in comparison

    NASA Astrophysics Data System (ADS)

    Ruopp, A.; Ruprecht, A.; Riedelbauch, S.; Arnaud, G.; Hamad, I.

    2014-03-01

    The development of a hydro-kinetic prototype was shown including the compound structure, guide vanes, runner blades and a draft tube section with a steeply sloping, short spoiler. The design process of the hydrodynamic layout was split into three major steps. First the compound and the draft tube section was designed and the best operating point was identified using porous media as replacement for the guide vane and runner section (step one). The best operating point and the volume flux as well as the pressure drop was identified and used for the design of the guide vane section and the runner section. Both were designed and simulated independently (step two). In step three, all parts were merged in stationary simulation runs detecting peak power and operational bandwidth. In addition, the full scale demonstrator was installed in August 2010 and measured in the St. Lawrence River in Quebec supporting the average inflow velocity using ADCP (Acoustic Doppler Current Profiler) and the generator power output over the variable rotational speed. Simulation data and measurements are in good agreement. Thus, the presented approach is a suitable way in designing a hydro kinetic turbine.

  13. Lac Courte Oreilles Hydro Dam Assessment

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Weaver, Jason; Meyers, Amy

    The main objective of this project was to investigate upgrading the existing hydro power generating system at the Winter Dam. The tribe would like to produce more energy and receive a fair market power purchase agreement so the dam is no longer a drain on our budget but a contributor to our economy. We contracted Kiser Hydro, LLC Engineering for this project and received an engineering report that includes options for producing more energy with cost effective upgrades to the existing turbines. Included in this project was a negotiation of energy price sales negotiations.

  14. Dyadic design interface between energy and agriculture: the case of Pinthali micro hydro system in Nepal.

    PubMed

    Regmi, A

    2003-01-01

    Technology, like society, is heterogeneous. It mirrors the context in which it operates. Micro hydro development in Nepal is a rural energy strategy, which relies on technology and innovation and takes place in a specific social context. In designing this energy strategy, both technology and its social context, therefore, need to be considered seriously. In technical design processes, the interplay between the content (technology) and the context (society) needs to be considered, as the outcome will affect the people. For example, the content--micro hydro system--in the domain of the context--agriculture--provides an arena for an integrated water control system. Thus, it is possible to control water for two purposes: to produce power and to provide irrigation. The end product will be "energy" as a "consumptive" output and improved food security as a "productive" output of water. Therefore, within a sociotechnical framework, energy and irrigation become constitutive outputs of the sacrosanct "water". Thus, the metaphor of power--the "sociotechnical code" of "content" and "context"--can be used with the term "agro-anergy" in the design process of micro hydro systems. Evidence suggests that this interaction can lead to a transformed water use system for both productive and consumptive output for the benefit of rural communities.

  15. 76 FR 18747 - Teton Power Funding, LLC; Topsham Hydro Partners Limited Partnership; Topsham Hydroelectric...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-05

    .... Topsham Hydro Partners Limited Partnership: Christine M. Miller, Brown Bear GP, LLC, c/o ArcLight Capital.... Miller, Brown Bear Power, LLC, c/o ArcLight Capital Partners, LLC, 200 Clarendon Street, 55th Floor.... Bose, Secretary, Federal Energy Regulatory Commission, 888 First Street, NE., Washington, DC 20426...

  16. What Gets the Turbine Spinning

    ERIC Educational Resources Information Center

    Raffan, Deirdre

    2005-01-01

    One activity that gets children thinking about how electricity is made involves exploring hydro (water) power. Water has been used as a source of energy for thousands of years for mechanical purposes such as grinding corn, bellows for furnaces or sawmills for cutting wood or slate. For about a century hydro power has been producing electricity…

  17. 78 FR 76610 - Sunshine Act Meeting Notice

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-18

    ... Company. HYDRO H-1 P-13579-002, P-14491- FFP Qualified Hydro 14, 000. LLC, Western Minnesota Municipal Power Agency. H-2 P-2146-139 Alabama Power Company. CERTIFICATES C-1 CP13-477-000 Columbia Gas... System Operator, Inc./PJM Interconnection, L.L.C Seam. E-4 RM13-7-000 Protection System Maintenance...

  18. A review of oscillating water columns.

    PubMed

    Heath, T V

    2012-01-28

    This paper considers the history of oscillating water column (OWC) systems from whistling buoys to grid-connected power generation systems. The power conversion from the wave resource through to electricity via pneumatic and shaft power is discussed in general terms and with specific reference to Voith Hydro Wavegen's land installed marine energy transformer (LIMPET) plant on the Scottish island of Islay and OWC breakwater systems. A report on the progress of other OWC systems and power take-off units under commercial development is given, and the particular challenges faced by OWC developers reviewed.

  19. 78 FR 62324 - Mid-Atlantic Hydro, LLC; Notice of Preliminary Permit Application Accepted for Filing and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-16

    ... Hydro, LLC; Notice of Preliminary Permit Application Accepted for Filing and Soliciting Comments, Motions To Intervene, and Competing Applications On September 25, 2013, Mid-Atlantic Hydro, LLC, filed an application for a preliminary permit, pursuant to section 4(f) of the Federal Power Act (FPA), proposing to...

  20. 78 FR 22873 - Hamilton Street Hydro, LLC; Notice of Preliminary Permit Application Accepted for Filing and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-17

    ... Hydro, LLC; Notice of Preliminary Permit Application Accepted for Filing and Soliciting Comments, Motions To Intervene, and Competing Applications On February 19, 2013, Hamilton Street Hydro, LLC, filed an application for a preliminary permit, pursuant to section 4(f) of the Federal Power Act (FPA...

  1. 78 FR 60271 - Mid-Atlantic Hydro, LLC; Notice of Preliminary Permit Application Accepted for Filing and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-01

    ... Hydro, LLC; Notice of Preliminary Permit Application Accepted for Filing and Soliciting Comments, Motions To Intervene, and Competing Applications On August 16, 2013, Mid-Atlantic Hydro, LLC filed an application for a preliminary permit, pursuant to section 4(f) of the Federal Power Act (FPA), proposing to...

  2. 78 FR 8512 - West Street Hydro, Inc.; Notice of Preliminary Permit Application Accepted for Filing and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-06

    ... Hydro, Inc.; Notice of Preliminary Permit Application Accepted for Filing and Soliciting Comments, Motions To Intervene, and Competing Applications On December 10, 2012, West Street Hydro, Inc., filed an application for a preliminary permit, pursuant to section 4(f) of the Federal Power Act, proposing to study...

  3. 78 FR 69081 - Mid-Atlantic Hydro, LLC; Notice of Preliminary Permit Application Accepted for Filing and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-18

    ... Hydro, LLC; Notice of Preliminary Permit Application Accepted for Filing and Soliciting Comments, Motions To Intervene, and Competing Applications On September 9, 2013, Mid-Atlantic Hydro, LLC, filed an application for a preliminary permit, pursuant to section 4(f) of the Federal Power Act (FPA), proposing to...

  4. 78 FR 28838 - Hamilton Street Hydro, LLC; Notice of Preliminary Permit Application Accepted for Filing and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-16

    ... Hydro, LLC; Notice of Preliminary Permit Application Accepted for Filing and Soliciting Comments, Motions To Intervene, and Competing Applications On March 26, 2013, Hamilton Street Hydro, LLC, filed an application for a preliminary permit, pursuant to section 4(f) of the Federal Power Act (FPA), proposing to...

  5. 78 FR 22872 - Hamilton Street Hydro, LLC; Notice of Preliminary Permit Application Accepted for Filing and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-17

    ... Hydro, LLC; Notice of Preliminary Permit Application Accepted for Filing and Soliciting Comments, Motions To Intervene, and Competing Applications On February 19, 2013, Hamilton Street Hydro, LLC, filed an application for a preliminary permit, pursuant to section 4(f) of the Federal Power Act (FPA...

  6. JEDI: Jobs and Economic Development Impact Model; NREL (National Renewable Energy Laboratory)

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    None

    The Jobs and Economic Development Impact (JEDI) models are user-friendly tools that estimate the economic impacts of constructing and operating power generation and biofuel plants at the local (usually state) level. First developed by NREL’s researchers to model wind energy jobs and impacts, JEDI has been expanded to also estimate the economic impacts of biofuels, coal, conventional hydro, concentrating solar power, geothermal, marine and hydrokinetic power, natural gas, photovoltaics, and transmission lines. This fact sheet focuses on JEDI for wind energy projects.

  7. JEDI: Jobs and Economic Development Impact Model

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    The Jobs and Economic Development Impact (JEDI) models are user-friendly tools that estimate the economic impacts of constructing and operating power generation and biofuel plants at the local (usually state) level. First developed by NREL's researchers to model wind energy jobs and impacts, JEDI has been expanded to also estimate the economic impacts of biofuels, coal, conventional hydro, concentrating solar power, geothermal, marine and hydrokinetic power, natural gas, photovoltaics, and transmission lines. This fact sheet focuses on JEDI for wind energy projects and is revised with 2017 figures.

  8. 78 FR 32644 - Las Vegas Wash Hydro LLC; Notice of Preliminary Permit Application Accepted for Filing and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-31

    ... Hydro LLC; Notice of Preliminary Permit Application Accepted for Filing and Soliciting Comments, Motions To Intervene, and Competing Applications On November 16, 2012, Las Vegas Wash Hydro LLC, filed an application for a preliminary permit, pursuant to section 4(f) of the Federal Power Act (FPA), proposing to...

  9. 78 FR 19699 - Combined Notice of Filings #1

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-02

    .... Applicants: Alta Wind VIII, LLC, Bear Swamp Power Company LLC, Brookfield Energy Marketing, Inc., Brookfield..., Great Lakes Hydro America LLC, Hawks Nest Hydro LLC, Longview Fibre Paper and Packaging, Inc., Rumford...

  10. Real options valuation and optimization of energy assets

    NASA Astrophysics Data System (ADS)

    Thompson, Matthew

    In this thesis we present algorithms for the valuation and optimal operation of natural gas storage facilities, hydro-electric power plants and thermal power generators in competitive markets. Real options theory is used to derive nonlinear partial-integro-differential equations (PIDEs) for the valuation and optimal operating strategies of all types of facilities. The equations are designed to incorporate a wide class of spot price models that can exhibit the same time-dependent, mean-reverting dynamics and price spikes as those observed in most energy markets. Particular attention is paid to the operational characteristics of real energy assets. For natural gas storage facilities these characteristics include: working gas capacities, variable deliverability and injection rates and cycling limitations. For thermal power plants relevant operational characteristics include variable start-up times and costs, control response time lags, minimum generating levels, nonlinear output functions, structural limitations on ramp rates, and minimum up/down time restrictions. For hydro-electric units, head effects and environmental constraints are addressed. We illustrate the models with numerical examples of a gas storage facility, a hydro-electric pump storage facility and a thermal power plant. This PIDE framework is the first in the literature to achieve second order accuracy in characterizing the operating states of hydro-electric and hydro-thermal power plants. The continuous state space representation derived in this thesis can therefore achieve far greater realism in terms of operating state specification than any other method in the literature to date. This thesis is also the first and only to allow for any continuous time jump diffusion processes in order to account for price spikes.

  11. Modeling Reservoir-River Networks in Support of Optimizing Seasonal-Scale Reservoir Operations

    NASA Astrophysics Data System (ADS)

    Villa, D. L.; Lowry, T. S.; Bier, A.; Barco, J.; Sun, A.

    2011-12-01

    HydroSCOPE (Hydropower Seasonal Concurrent Optimization of Power and the Environment) is a seasonal time-scale tool for scenario analysis and optimization of reservoir-river networks. Developed in MATLAB, HydroSCOPE is an object-oriented model that simulates basin-scale dynamics with an objective of optimizing reservoir operations to maximize revenue from power generation, reliability in the water supply, environmental performance, and flood control. HydroSCOPE is part of a larger toolset that is being developed through a Department of Energy multi-laboratory project. This project's goal is to provide conventional hydropower decision makers with better information to execute their day-ahead and seasonal operations and planning activities by integrating water balance and operational dynamics across a wide range of spatial and temporal scales. This presentation details the modeling approach and functionality of HydroSCOPE. HydroSCOPE consists of a river-reservoir network model and an optimization routine. The river-reservoir network model simulates the heat and water balance of river-reservoir networks for time-scales up to one year. The optimization routine software, DAKOTA (Design Analysis Kit for Optimization and Terascale Applications - dakota.sandia.gov), is seamlessly linked to the network model and is used to optimize daily volumetric releases from the reservoirs to best meet a set of user-defined constraints, such as maximizing revenue while minimizing environmental violations. The network model uses 1-D approximations for both the reservoirs and river reaches and is able to account for surface and sediment heat exchange as well as ice dynamics for both models. The reservoir model also accounts for inflow, density, and withdrawal zone mixing, and diffusive heat exchange. Routing for the river reaches is accomplished using a modified Muskingum-Cunge approach that automatically calculates the internal timestep and sub-reach lengths to match the conditions of each timestep and minimize computational overhead. Power generation for each reservoir is estimated using a 2-dimensional regression that accounts for both the available head and turbine efficiency. The object-oriented architecture makes run configuration easy to update. The dynamic model inputs include inflow and meteorological forecasts while static inputs include bathymetry data, reservoir and power generation characteristics, and topological descriptors. Ensemble forecasts of hydrological and meteorological conditions are supplied in real-time by Pacific Northwest National Laboratory and are used as a proxy for uncertainty, which is carried through the simulation and optimization process to produce output that describes the probability that different operational scenario's will be optimal. The full toolset, which includes HydroSCOPE, is currently being tested on the Feather River system in Northern California and the Upper Colorado Storage Project.

  12. 78 FR 58301 - Go With the Flow Hydro Power, LLC; Notice of Preliminary Permit Application Accepted for Filing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-23

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 14538-000] Go With the Flow..., Motions To Intervene, and Competing Applications On July 22, 2013, Go with the Flow Hydro Power, LLC...), proposing to study the feasibility of the Go with the Flow Hydroelectric Project (project) to be located on...

  13. Set-up of a pump as turbine use in micro-pumped hydro energy storage: a case of study in Froyennes Belgium

    NASA Astrophysics Data System (ADS)

    Morabito, A.; Steimes, J.; Bontems, O.; Zohbi, G. Al; Hendrick, P.

    2017-04-01

    Its maturity makes pumped hydro energy storage (PHES) the most used technology in energy storage. Micro-hydro plants (<100 kW) are globally emerging due to further increases in the share of renewable electricity production such as wind and solar power. This paper presents the design of a micro-PHES developed in Froyennes, Belgium, using a pump as turbine (PaT) coupled with a variable frequency driver (VFD). The methods adopted for the selection of the most suitable pump for pumping and reverse mode are compared and discussed. Controlling and monitoring the PaT performances represent a compulsory design phase in the analysis feasibility of PaT coupled with VFD in micro PHES plant. This study aims at answering technical research aspects of µ-PHES site used with reversible pumps.

  14. 75 FR 62530 - Eagle Creek Hydro Power, LLC; Laredo Ridge Wind, LLC; RRI Energy West, Inc.; Goshen Phase II LLC...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-12

    ...; EG10-52-000; EG10-53-000; EG10- 54-000; EG10-55-000; EG10-56-000] Eagle Creek Hydro Power, LLC; Laredo Ridge Wind, LLC; RRI Energy West, Inc.; Goshen Phase II LLC; Solar Partners I, LLC; Solar Partners II, LLC; Solar Partners VIII, LLC; Notice of Effectiveness of Exempt Wholesale Generator Status October 1...

  15. Design and development of hybrid energy generator (photovoltaics) with solar tracker

    NASA Astrophysics Data System (ADS)

    Mohiuddin, A. K. M.; Sabarudin, Mohamad Syabil Bin; Khan, Ahsan Ali; Izan Ihsan, Sany

    2017-03-01

    This paper is the outcome of a small scale hybrid energy generator (hydro and photovoltaic) project. It contains the photovoltaics part of the project. The demand of energy resources is increasing day by day. That is why people nowadays tend to move on and changes their energy usage from using fossil fuels to a cleaner and green energy like hydro energy, solar energy etc. Nevertheless, energy is hard to come by for people who live in remote areas and also campsites in the remote areas which need continuous energy sources to power the facilities. Thus, the purpose of this project is to design and develop a small scale hybrid energy generator to help people that are in need of power. This main objective of this project is to develop and analyze the effectiveness of solar trackers in order to increase the electricity generation from solar energy. Software like Solidworks and Arduino is used to sketch and construct the design and also to program the microcontroller respectively. Experimental results show the effectiveness of the designed solar tracker sytem.

  16. Experimental measurements concerning the stator insulation partial discharge level of a hydro-generator of high power

    NASA Astrophysics Data System (ADS)

    Haţiegan, C.; Răduca, E.; Popescu, C.; Hamat, C. O.; Băra, A.; Anghel, D.; Pîrşan, D. A.

    2018-01-01

    The paper presents a determining and evaluating method from an experimental point of view of the partial discharges level from the insulation of the stator of a synchronous hydro-generator of high power that appear at different temperatures. The temperature is measured directly on the coil with placed thermo-resistant elements between the superior and inferior bars. Also, the level of partial discharges with the coil age in a cold state, at the temperature level of the surrounding environment from within the stator, but also in a warm state at different temperatures, is measured. Through this method there is created the possibility of highlighting some eventual degradations of the coil insulation of a hydro-generator.

  17. Maine Tidal Power Initiative: Environmental Impact Protocols For Tidal Power

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Peterson, Michael Leroy; Zydlewski, Gayle Barbin; Xue, Huijie

    2014-02-02

    The Maine Tidal Power Initiative (MTPI), an interdisciplinary group of engineers, biologists, oceanographers, and social scientists, has been conducting research to evaluate tidal energy resources and better understand the potential effects and impacts of marine hydro-kinetic (MHK) development on the environment and local community. Project efforts include: 1) resource assessment, 2) development of initial device design parameters using scale model tests, 3) baseline environmental studies and monitoring, and 4) human and community responses. This work included in-situ measurement of the environmental and social response to the pre-commercial Turbine Generator Unit (TGU®) developed by Ocean Renewable Power Company (ORPC) as wellmore » as considering the path forward for smaller community scale projects.« less

  18. Hydropower into the mainstream: A view from the Potomac

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Clarke, D.H.

    1992-04-01

    This article discusses the regulatory and political environment in Washington, D.C. as it affects the hydro power industry, and the actions of the National Hydropower Association in ensuring that regulators, politicians, and federal agencies understand the issues necessary to maintaining hydro power as a mainstream energy source for the U.S. Some of the issues discussed are the Clean Water Act reauthorization, the Endangered Species Act reauthorization, National Energy Strategy legislation, and trends in FERC regulation.

  19. Neural network based inspection of voids and karst conduits in hydro-electric power station tunnels using GPR

    NASA Astrophysics Data System (ADS)

    Kilic, Gokhan; Eren, Levent

    2018-04-01

    This paper reports on the fundamental role played by Ground Penetrating Radar (GPR), alongside advanced processing and presentation methods, during the tunnel boring project at a Dam and Hydro-Electric Power Station. It identifies from collected GPR data such issues as incomplete grouting and the presence of karst conduits and voids and provides full details of the procedures adopted. In particular, the application of collected GPR data to the Neural Network (NN) method is discussed.

  20. Power Management Based Current Control Technique for Photovoltaic-Battery Assisted Wind-Hydro Hybrid System

    NASA Astrophysics Data System (ADS)

    Ram Prabhakar, J.; Ragavan, K.

    2013-07-01

    This article proposes new power management based current control strategy for integrated wind-solar-hydro system equipped with battery storage mechanism. In this control technique, an indirect estimation of load current is done, through energy balance model, DC-link voltage control and droop control. This system features simpler energy management strategy and necessitates few power electronic converters, thereby minimizing the cost of the system. The generation-demand (G-D) management diagram is formulated based on the stochastic weather conditions and demand, which would likely moderate the gap between both. The features of management strategy deploying energy balance model include (1) regulating DC-link voltage within specified tolerances, (2) isolated operation without relying on external electric power transmission network, (3) indirect current control of hydro turbine driven induction generator and (4) seamless transition between grid-connected and off-grid operation modes. Furthermore, structuring of the hybrid system with appropriate selection of control variables enables power sharing among each energy conversion systems and battery storage mechanism. By addressing these intricacies, it is viable to regulate the frequency and voltage of the remote network at load end. The performance of the proposed composite scheme is demonstrated through time-domain simulation in MATLAB/Simulink environment.

  1. 78 FR 77115 - Lock 14 Hydro Partners; Notice of Application Ready for Environmental Analysis and Soliciting...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-20

    ...: Federal Power Act, 16 U.S.C. 791(a)-825(r). h. Applicant Contact: David Brown Kinloch, Lock 14 Hydro... of: (1) An existing 248-foot- long, 17-foot-high concrete lock and dam with a 319-foot-long stone...

  2. 76 FR 8724 - First Light Hydro Generating Company; Notice of Application Accepted for Filing, Soliciting...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-15

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 2485-059] First Light Hydro..., Federal Energy Regulatory Commission, 888 First Street, NE., Washington, DC 20426. Commenters can submit... photovoltaic solar array will provide power to Northfield Mountain Visitor's Center. The solar array would be...

  3. The First Israeli Hydro-Electric Pumped Storage Power Plant Gilboa PSPP

    NASA Astrophysics Data System (ADS)

    Maruzewski, P., Dr.; Sautereau, T.; Sapir, Y.; Barak, H.; Hénard, F.; Blaix, J.-C.

    2016-11-01

    The Israeli Public Utilities Authority, PUA, decided to increase the instantaneous power available on the grid by adding Pumped Storage Power Plants, PSPP, to the existing generation capacity. PSP Investments Ltd. is a private investor that decided to develop the Gilboa PSPP. Its capacity is 300MWe. The project performance has to comply with PUA regulation for PSPP, and with all relevant Israeli laws and IECo standards. This paper itemizes an overview of the Gilboa PSPP through short summaries of units’ components from design step to manufacturing processes.

  4. A Complexity Perspective on Innovation Processes for Subsea Technology Development

    ERIC Educational Resources Information Center

    Aasen, Tone Merethe Berg

    2009-01-01

    In today's business thinking, innovation is commonly equated with progress, indicating an underlying assumption that company management have the power to choose a specific future and control the way into it. Drawing on examples from a longitudinal research initiative in the Norwegian petroleum company StatoilHydro, this article raises some of the…

  5. Energy droughts in a 100% renewable electricity mix

    NASA Astrophysics Data System (ADS)

    Raynaud, Damien; Hingray, Benoît; François, Baptiste; Creutin, Jean-Dominique

    2017-04-01

    During the 21st conference of parties, 175 countries agreed on limiting the temperature increase due to global warming to 2°C above preindustrial levels. Such an ambitious goal necessitates a deep transformation of our society in order to reduce greenhouse gas (GHG) emissions. Europe has started its energy transition years ago by, for instance, increasing the share of renewables in the European electricity generation and should continue in this direction. Variable renewable energies (VRE) and especially those driven by weather conditions (namely wind, solar and hydro power from river flow), are expected to play a key role in achieving the GHG reduction target. However, these renewables are often criticized for their intermittency and for the resulting difficult integration in the power supply system, especially for large shares of VRE in the energy mix. Assessing the feasibility of electricity generation using large contributions of VRE requires a deep understanding and characterization of the VRE spatiotemporal variations. In the last decade, many studies have focused on the short-term intermittency of VRE generation, but the persistency and the characteristics of periods of low/high electricity generation have been rarely studied. Yet, these particular situations require some demanding adaptations of the power supply system in term of back-up sources or production curtailment respectively. This study focuses on what we call "energy droughts" which, by analogy with hydrological or meteorological droughts, are defined as periods of very low energy production. We consider in turn "energy droughts" associated to wind, solar and hydro power (run-of-the-river). Their characteristics are estimated for 12 European regions being subjected to different climatic regimes. For each region and energy source, "droughts" are evaluated from a 30-yr time series of power generation (1983-2012). These series are simulated by using a suite of weather-to-energy conversion models with generic power systems (generic wind, solar and hydro power plant) and observations or pseudo-observations of meteorological drivers. The daily river discharge series required for hydro power are generated using a hydrological model. Our results demonstrate the diversity of characteristics of energy droughts not only from one energy source to the other, but also depending on the region and on the season considered. Wind power generally presents short but frequent energy droughts whereas hydro-power-related droughts are rare but generally long lasting. Solar power is mainly driven by the length of daytime resulting in long winter "solar drought" in Northern regions. We finally assess the energy droughts characteristics of an energy mix for which the three VRE sources are combined. The proportions of wind, solar and hydro power considered in the regional mixes are based on the work of François et al. (2016b). Mixing VRE sources efficiently reduces both duration and frequency of energy droughts leading to a more reliable power supply. References : François, B., Hingray, B., Raynaud, D., Borga, M., Creutin, J.D., 2016b. Increasing climate-related-energy penetration by integrating run-of-the river hydropower to wind/solar mix. Renew. Energy 87, 686-696. doi:10.1016/j.renene.2015.10.064

  6. Experimental Hydro-Mechanical Characterization of Full Load Pressure Surge in Francis Turbines

    NASA Astrophysics Data System (ADS)

    Müller, A.; Favrel, A.; Landry, C.; Yamamoto, K.; Avellan, F.

    2017-04-01

    Full load pressure surge limits the operating range of hydro-electric generating units by causing significant power output swings and by compromising the safety of the plant. It appears during the off-design operation of hydraulic machines, which is increasingly required to regulate the broad integration of volatile renewable energy sources into the existing power network. The underlying causes and governing physical mechanisms of this instability were investigated in the frame of a large European research project and this paper documents the main findings from two experimental campaigns on a reduced scale model of a Francis turbine. The multi-phase flow in the draft tube is characterized by Particle Image Velocimetry, Laser Doppler Velocimetry and high-speed visualizations, along with synchronized measurements of the relevant hydro-mechanical quantities. The final result is a comprehensive overview of how the unsteady draft tube flow and the mechanical torque on the runner shaft behave during one mean period of the pressure oscillation, thus defining the unstable fluid-structure interaction responsible for the power swings. A discussion of the root cause is initiated, based on the state of the art. Finally, the latest results will enable a validation of recent RANS flow simulations used for determining the key parameters of hydro-acoustic stability models.

  7. Brazil upgrades microwave system

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Newman, H.S.; Gomes, H.P.

    1979-02-01

    To provide communications facilities necessary during major construction projects, and for the operation and control of the expanding electric-power network, in 1967 Furnas-Centrais Eletricas SA, Brazil, started installing the first 22 links of its microwave system, from the Botafogo plant in Rio de Janeiro to the Furnas hydro station, and from the Furnas hydro station, southwest, to the Guarulhos plant in Sao Paulo and northwest to the Estreito hydro plant. To accommodate the construction of additional hydroelectric facilities, the second and third microwave-system expansions added nine links from Estreito hydro, northwest, to Marimbondo hydro and 7 links to Itumbiara. Themore » fourth expansion included two links to connect with the Angra dos Reis nuclear generating plant. A modern SCADA system replaced an earlier fault-reporting method, and a means of monitoring performance communications was established.« less

  8. The Study on Eco-environmental Issue of Aral Sea from the Perspective of Sustainable Development of Silk Road Economic Belt

    NASA Astrophysics Data System (ADS)

    Xu, Hanyan

    2017-04-01

    The Aral Sea crisis is the most prominent environmental problem in building Silk Road and Economic Belt, which is mainly induced by extensive exploitation of land resources in Aral Sea basin since the middle of last century. The upstream part of Amu Darya River, as the main water source of Aral Sea, is almost entirely located in Tajikistan, thus, the development and utilization of Tajikistan water resources affect the whole Aral Sea basin. The author puts forward oriented-development of green energy under the overall framework of co-building Silk Road and Economic Belt, developing small hydro-power and dam-free hydro-power stations, standardized implementation of agricultural modernization in Central Asia, through high efficiency and water saving agriculture to achieve “returning water to sea”, to reverse drying trend of Aral Sea, to renovate ecological environment, resulting in simultaneous implementation of agricultural production and Aral Sea governance, simultaneous achievement of agricultural harvest and ecological environment improvement of Aral Sea basin. The article makes a scientific proof of reality and feasibility regarding the proposed methods. Green ecological environment and stable social environment will contribute to the sustainable development of Green Silk Road and Economic belt.…

  9. Essays on Infrastructure Design and Planning for Clean Energy Systems

    NASA Astrophysics Data System (ADS)

    Kocaman, Ayse Selin

    The International Energy Agency estimates that the number of people who do not have access to electricity is nearly 1.3 billion and a billion more have only unreliable and intermittent supply. Moreover, current supply for electricity generation mostly relies on fossil fuels, which are finite and one of the greatest threats to the environment. Rising population growth rates, depleting fuel sources, environmental issues and economic developments have increased the need for mathematical optimization to provide a formal framework that enables systematic and clear decision-making in energy operations. This thesis through its methodologies and algorithms enable tools for energy generation, transmission and distribution system design and help policy makers make cost assessments in energy infrastructure planning rapidly and accurately. In Chapter 2, we focus on local-level power distribution systems planning for rural electrification using techniques from combinatorial optimization. We describe a heuristic algorithm that provides a quick solution for the partial electrification problem where the distribution network can only connect a pre-specified number of households with low voltage lines. The algorithm demonstrates the effect of household settlement patterns on the electrification cost. We also describe the first heuristic algorithm that selects the locations and service areas of transformers without requiring candidate solutions and simultaneously builds a two-level grid network in a green-field setting. The algorithms are applied to real world rural settings in Africa, where household locations digitized from satellite imagery are prescribed. In Chapter 3 and 4, we focus on power generation and transmission using clean energy sources. Here, we imagine a country in the future where hydro and solar are the dominant sources and fossil fuels are only available in minimal form. We discuss the problem of modeling hydro and solar energy production and allocation, including long-term investments and storage, capturing the stochastic nature of hourly supply and demand data. We mathematically model two hybrid energy generation and allocation systems where time variability of energy sources and demand is balanced using the water stored in the reservoirs. In Chapter 3, we use conventional hydro power stations (incoming stream flows are stored in large dams and water release is deferred until it is needed) and in Chapter 4, we use pumped hydro stations (water is pumped from lower reservoir to upper reservoir during periods of low demand to be released for generation when demand is high). Aim of the models is to determine optimal sizing of infrastructure needed to match demand and supply in a most reliable and cost effective way. An innovative contribution of this work is the establishment of a new perspective to energy modeling by including fine-grained sources of uncertainty such as stream flow and solar radiations in hourly level as well as spatial location of supply and demand and transmission network in national level. In addition, we compare the conventional and the pumped hydro power systems in terms of reliability and cost efficiency and quantitatively show the improvement provided by including pumped hydro storage. The model will be presented with a case study of India and helps to answer whether solar energy in addition to hydro power potential in Himalaya Mountains would be enough to meet growing electricity demand if fossil fuels could be almost completely phased out from electricity generation.

  10. Multi-objective evolutionary optimization for the joint operation of reservoirs of water supply under water-food-energy nexus management

    NASA Astrophysics Data System (ADS)

    Uen, T. S.; Tsai, W. P.; Chang, F. J.; Huang, A.

    2016-12-01

    In recent years, urbanization had a great effect on the growth of population and the resource management scheme of water, food and energy nexus (WFE nexus) in Taiwan. Resource shortages of WFE become a long-term and thorny issue due to the complex interactions of WFE nexus. In consideration of rapid socio-economic development, it is imperative to explore an efficient and practical approach for WFE resources management. This study aims to search the optimal solution to WFE nexus and construct a stable water supply system for multiple stakeholders. The Shimen Reservoir and Feitsui Reservoir in northern Taiwan are chosen to conduct the joint operation of the two reservoirs for water supply. This study intends to achieve water resource allocation from the two reservoirs subject to different operating rules and restrictions of resource allocation. The multi-objectives of the joint operation aim at maximizing hydro-power synergistic gains while minimizing water supply deficiency as well as food shortages. We propose to build a multi-objective evolutionary optimization model for analyzing the hydro-power synergistic gains to suggest the most favorable solutions in terms of tradeoffs between WFE. First, this study collected data from two reservoirs and Taiwan power company. Next, we built a WFE nexus model based on system dynamics. Finally, this study optimized the joint operation of the two reservoirs and calculated the synergy of hydro-power generation. The proposed methodology can tackle the complex joint reservoir operation problems. Results can suggest a reliable policy for joint reservoir operation for creating a green economic city under the lowest risks of water supply.

  11. Global analysis of a renewable micro hydro power generation plant

    NASA Astrophysics Data System (ADS)

    Rahman, Md. Shad; Nabil, Imtiaz Muhammed; Alam, M. Mahbubul

    2017-12-01

    Hydroelectric power or Hydropower means the power generated by the help of flowing water with force. It is one the best source of renewable energy in the world. Water evaporates from the earth's surface, forms clouds, precipitates back to earth, and flows toward the ocean. Hydropower is considered a renewable energy resource because it uses the earth's water cycle to generate electricity. As far as Global is concerned, only a small fraction of electricity is generated by hydro-power. The aim of our analysis is to demonstrate and observe the hydropower of the Globe in micro-scale by our experimental setup which is completely new in concept. This paper consists of all the Global and National Scenario of Hydropower. And how we can more emphasize the generation of Hydroelectric power worldwide.

  12. 78 FR 17389 - Clark Canyon Hydro, LLC; Notice of Application for Amendment of License and Soliciting Comments...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-21

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 12429-009] Clark Canyon...: 12429-009. c. Date Filed: January 28, 2013. d. Applicant: Northwest Power Services on behalf of Clark Canyon Hydro, LLC. e. Name of Project: Clark Canyon Dam Hydroelectric Project. f. Location: The Clark...

  13. 76 FR 20658 - Qualified Hydro 25, LLC; Notice of Preliminary Permit Application Accepted for Filing and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-13

    ... 25, LLC; Notice of Preliminary Permit Application Accepted for Filing and Soliciting Comments, Motions To Intervene, and Competing Applications On September 30, 2010, Qualified Hydro 25, LLC filed an application for a preliminary permit, pursuant to section 4(f) of the Federal Power Act (FPA), proposing to...

  14. 78 FR 45918 - Application for Presidential Permit; Soule River Hydroelectric Project

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-30

    ... Hydro. Soule Hydro proposes to construct and operate a high-voltage alternating current (HVAC... 8-mile long, 138 kilovolt (kV) HVAC 3-phase submarine cable that would be laid on the floor of... whether the proposed project would adversely affect the operation of the U.S. electric power supply system...

  15. Computer Security for Commercial Nuclear Power Plants - Literature Review for Korea Hydro Nuclear Power Central Research Institute

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Duran, Felicia Angelica; Waymire, Russell L.

    2013-10-01

    Sandia National Laboratories (SNL) is providing training and consultation activities on security planning and design for the Korea Hydro and Nuclear Power Central Research Institute (KHNPCRI). As part of this effort, SNL performed a literature review on computer security requirements, guidance and best practices that are applicable to an advanced nuclear power plant. This report documents the review of reports generated by SNL and other organizations [U.S. Nuclear Regulatory Commission, Nuclear Energy Institute, and International Atomic Energy Agency] related to protection of information technology resources, primarily digital controls and computer resources and their data networks. Copies of the key documentsmore » have also been provided to KHNP-CRI.« less

  16. Parametric distribution approach for flow availability in small hydro potential analysis

    NASA Astrophysics Data System (ADS)

    Abdullah, Samizee; Basri, Mohd Juhari Mat; Jamaluddin, Zahrul Zamri; Azrulhisham, Engku Ahmad; Othman, Jamel

    2016-10-01

    Small hydro system is one of the important sources of renewable energy and it has been recognized worldwide as clean energy sources. Small hydropower generation system uses the potential energy in flowing water to produce electricity is often questionable due to inconsistent and intermittent of power generated. Potential analysis of small hydro system which is mainly dependent on the availability of water requires the knowledge of water flow or stream flow distribution. This paper presented the possibility of applying Pearson system for stream flow availability distribution approximation in the small hydro system. By considering the stochastic nature of stream flow, the Pearson parametric distribution approximation was computed based on the significant characteristic of Pearson system applying direct correlation between the first four statistical moments of the distribution. The advantage of applying various statistical moments in small hydro potential analysis will have the ability to analyze the variation shapes of stream flow distribution.

  17. Taming B.C. Hydro: Site C and the implementation of the B.C. Utilities Commission Act

    NASA Astrophysics Data System (ADS)

    Smith, L. Graham

    1988-07-01

    Public policy making in resources management is greatly influenced by the institutional arrangements that arise out of the legal powers, administrative structures, and financial provisions of the decision system. In British Columbia, the institutional arrangements for energy planning in the province have been greatly altered by the passage of the Utilities Commission Act in 1980. This act redefines the policy implementation process for energy in British Columbia and provides for the regulation of the province's power utility, B.C. Hydro. This is the first time that the hitherto autonomous utility has been subject to regulation and the Utilities Commission Act represents a major reform in the institutional arrangements for energy planning in the province. The article evaluates the effectiveness of the 1980 B.C. Utilities Commission Act and assesses the impact of the legislation upon the institutional arrangements for energy planning in the province. Data for the article were derived from written sources and a series of personal interviews with key participants involved with energy planning in B.C. It is shown that the act represented a major departure in the management of energy resources in B.C. Moreover the implementation of the act's provisions, particularly in regard to B.C. Hydro, had a dramatic impact on the development of new energy projects in the province. It is suggested that while the political and economic climate during the period also favored restraint, the major influence on “taming” the utility was passage of the Utilities Commission Act. The article concludes by exploring the implications of policy changes that have occurred as a consequence of the act's impact on B.C. Hydro.

  18. Correction of biochemical and functional disorders in brain ischaemia with laser therapy

    NASA Astrophysics Data System (ADS)

    Musienko, Julia I.; Nechipurenko, Natalia I.; Vasilevskaya, Ludmila A.

    2005-08-01

    Application of intravenous laser irradiation of blood (ILIB) is considered to be the most effective method of laser therapy and its application is expedient pathogenetically in the ischemic disturbances. The aim of this study is to investigate ILIB influence with red helium-neon laser (HNL) with 630 nm wavelength and different powers on blood oxygen transport (BOT), cerebral and dermal microhaemodynamics (MGD), hydro-ion balance in normal rabbits and after modeling of local ischemia of brain (LIB). Experimental cerebral ischemia is characterized by development of BOT disturbance, ionic disbalance and edema in the ischemic brain region. Microcirculation disturbances with worsening of the cerebral and dermal MHD were revealed. ILIB with HNL radiation of 2.5 and 4.5 mW powers provokes dehydratation of brain structure alone with the K+, Na+ concentration decreasing and hemoglobin-oxygen affinity increasing in intact group of animals. There was not revealed marked changes of cerebral MHD condition here. Using of ILIB in rabbits after LIB contributes for improving function of BOT, normalizing of water content in all cerebral structures compared to operated animals. Preventive ILIB provoked improvement of speckl-optical parameters and marked protective effect on microhaemodynamics processes in superficial brain structures. HNL radiation with 1.0 mW power results in worsening of oxygen transport, cerebral and skin MHD, hydro-ion homeostasis in animals with LIB modeling. Thus, laser haemotherapy contributes for improving of hydro-ion status, blood oxygen transport and cerebral microcirculation in brain ischemia, what allows considering that helium-neon radiation with the pointed regimen is substantiated pathogenetically in brain ischaemia.

  19. Contribution of variable-speed pump hydro storage for power system dynamic performance

    NASA Astrophysics Data System (ADS)

    Silva, B.; Moreira, C.

    2017-04-01

    This paper presents the study of variable-speed Pump Storage Powerplant (PSP) in the Portuguese power system. It evaluates the progressive integration in three major locations and compares the power system performance following a severe fault event with consequent disconnection of non-Fault Ride-through (FRT) compliant Wind Farms (WF). To achieve such objective, a frequency responsive model was developed in PSS/E and was further used to substitute existing fixed-speed PSP. The results allow identifying a clear enhancement on the power system performance by the presence of frequency responsive variable-speed PSP, especially for the scenario presented, with high level of renewables integration.

  20. 76 FR 35875 - Blue Heron Hydro LLC; Notice of Application Ready for Environmental Analysis and Soliciting...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-20

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 13368-002] Blue Heron Hydro... Minor License. b. Project No.: 13368-002. c. Date filed: November 1, 2010. d. Applicant: Blue Heron.... Filed Pursuant to: Federal Power Act 16 U.S.C. 791 (a)-825(r). h. Applicant Contact: Lori Barg, Blue...

  1. 76 FR 26331 - Dijji Corp., Hydro Environmental Resources, Inc. (n/k/a EXIM Internet Group, Inc.), Hydrogen...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-06

    ... SECURITIES AND EXCHANGE COMMISSION [File No. 500-1] Dijji Corp., Hydro Environmental Resources, Inc. (n/k/a EXIM Internet Group, Inc.), Hydrogen Power, Inc., and InsynQ, Inc.; Order of Suspension of... Environmental Resources, Inc. (n/k/a EXIM Internet Group, Inc.) because it has not filed any periodic reports...

  2. Brigham City Hydro Generation Project

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Ammons, Tom B.

    Brigham City owns and operates its own municipal power system which currently includes several hydroelectric facilities. This project was to update the efficiency and capacity of current hydro production due to increased water flow demands that could pass through existing generation facilities. During 2006-2012, this project completed efficiency evaluation as it related to its main objective by completing a feasibility study, undergoing necessary City Council approvals and required federal environmental reviews. As a result of Phase 1 of the project, a feasibility study was conducted to determine feasibility of hydro and solar portions of the original proposal. The results indicatedmore » that the existing Hydro plant which was constructed in the 1960’s was running at approximately 77% efficiency or less. Brigham City proposes that the efficiency calculations be refined to determine the economic feasibility of improving or replacing the existing equipment with new high efficiency equipment design specifically for the site. Brigham City completed the Feasibility Assessment of this project, and determined that the Upper Hydro that supplies the main culinary water to the city was feasible to continue with. Brigham City Council provided their approval of feasibility assessment’s results. The Upper Hydro Project include removal of the existing powerhouse equipment and controls and demolition of a section of concrete encased penstock, replacement of penstock just upstream of the turbine inlet, turbine bypass, turbine shut-off and bypass valves, turbine and generator package, control equipment, assembly, start-up, commissioning, Supervisory Control And Data Acquisition (SCADA), and the replacement of a section of conductors to the step-up transformer. Brigham City increased the existing 575 KW turbine and generator with an 825 KW turbine and generator. Following the results of the feasibility assessment Brigham City pursued required environmental reviews with the DOE and the U.S. Fish and Wildlife Services (USFWS) concurring with the National Environmental Policy Act of 1969 (NEPA) It was determined that Brigham City’s Upper Hydroelectric Power Plant upgrade would have no effect to federally listed or candidate species. However Brigham City has contributed a onetime lump sum towards Bonneville cutthroat trout conservation in the Northern Bonneville Geographic Management Unit with the intention to offset any impacts from the Upper Hydro Project needed to move forward with design and construction and is sufficient for NEPA compliance. No work was done in the river or river bank. During construction, the penstock was disconnected and water was diverted through and existing system around the powerhouse and back into the water system. The penstock, which is currently a 30-inch steel pipe, would be removed and replaced with a new section of 30-inch pipe. Brigham City worked with the DOE and was awarded a new modification and the permission to proceed with Phase III of our Hydro Project in Dec. 2013; with the exception to the modification of the award for the construction phase. Brigham City developed and issued a Request for Proposal for Engineer and Design vendor. Sunrise Engineering was selected for the Design and throughout the Construction Phase of the Upper Hydroelectric Power Plant. Brigham City conducted a Kickoff Meeting with Sunrise June 28, 2013 and received a Scope of Work Brigham City along with engineering firm sent out a RFP for Turbine, Generator and Equipment for Upper Hydro. We select Turbine/Generator Equipment from Canyon Industries located in Deming, WA. DOE awarded Brigham City a new modification and the permission to proceed with Phase III Construction of our Hydro Project. Brigham City Crews removed existing turbine/generator and old equipment alone with feeder wires coming into the building basically giving Caribou Construction an empty shell to begin demolition. Brigham City contracted with Caribou Construction from Jerome, Idaho for the Upper Power Plant construction. A kickoff meeting was June 24, 2014 and demolition was immediately started on building. Because of a delivery delay of Turbine, Generator and Equipment from Canyon Brigham City had to request another extension for the final date of completion. DOE awarded modification (.007) to Brigham City with a new completion date of August 1, 2015. The Turbine has had a few adjustments to help with efficiency; but the Generator had a slight vibration when generator got hot so Canyon Industries had U S Motor’s that manufactured the generator come to check out the issue. The other Equipment seems to be running normal. Brigham City, Sunrise Engineering and Canyon Industries met to determine what the vibration in the generator was and how to solve the issue Us Motor’s found some welds that failed: they have been repaired. U S Motor’s delivered the repaired generator Feb. 17, 2015. Canyon Industries arranged for a crane to installed generator in Power Plant. U S Motor’s balanced and wired generator. Plant Operators put the generator back on line. Canyon Industries returned and gave their approval to keep Hydro online. After Hydro was put back into operations it kept going off line because of overheating issues. Canyon Industries returned and replaced sensors and adjusted them to the proper settings for normal operations. Brigham City added additional steel screens to windows to increase air flow in Power Plant Building. After construction phase of the Upper Hydro Plant some landscaping has been restored around the building additional gravel brought in and leveled out and the road that was cut through for conduits to run wires. A retaining wall was installed to protect penstock. The Upper Hydro Plant is complete and in full operations. The final reimbursement was submitted.« less

  3. Mercury Information Clearinghouse

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Chad A. Wocken; Michael J. Holmes; Dennis L. Laudal

    2006-03-31

    The Canadian Electricity Association (CEA) identified a need and contracted the Energy & Environmental Research Center (EERC) to create and maintain an information clearinghouse on global research and development activities related to mercury emissions from coal-fired electric utilities. With the support of CEA, the Center for Air Toxic Metals{reg_sign} (CATM{reg_sign}) Affiliates, and the U.S. Department of Energy (DOE), the EERC developed comprehensive quarterly information updates that provide a detailed assessment of developments in the various areas of mercury monitoring, control, policy, and research. A total of eight topical reports were completed and are summarized and updated in this final CEAmore » quarterly report. The original quarterly reports can be viewed at the CEA Web site (www.ceamercuryprogram.ca). In addition to a comprehensive update of previous mercury-related topics, a review of results from the CEA Mercury Program is provided. Members of Canada's coal-fired electricity generation sector (ATCO Power, EPCOR, Manitoba Hydro, New Brunswick Power, Nova Scotia Power Inc., Ontario Power Generation, SaskPower, and TransAlta) and CEA, have compiled an extensive database of information from stack-, coal-, and ash-sampling activities. Data from this effort are also available at the CEA Web site and have provided critical information for establishing and reviewing a mercury standard for Canada that is protective of environment and public health and is cost-effective. Specific goals outlined for the CEA mercury program included the following: (1) Improve emission inventories and develop management options through an intensive 2-year coal-, ash-, and stack-sampling program; (2) Promote effective stack testing through the development of guidance material and the support of on-site training on the Ontario Hydro method for employees, government representatives, and contractors on an as-needed basis; (3) Strengthen laboratory analytical capabilities through analysis and quality assurance programs; and (4) Create and maintain an information clearinghouse to ensure that all parties can keep informed on global mercury research and development activities.« less

  4. Effect of accuracy of wind power prediction on power system operator

    NASA Technical Reports Server (NTRS)

    Schlueter, R. A.; Sigari, G.; Costi, T.

    1985-01-01

    This research project proposed a modified unit commitment that schedules connection and disconnection of generating units in response to load. A modified generation control is also proposed that controls steam units under automatic generation control, fast responding diesels, gas turbines and hydro units under a feedforward control, and wind turbine array output under a closed loop array control. This modified generation control and unit commitment require prediction of trend wind power variation one hour ahead and the prediction of error in this trend wind power prediction one half hour ahead. An improved meter for predicting trend wind speed variation is developed. Methods for accurately simulating the wind array power from a limited number of wind speed prediction records was developed. Finally, two methods for predicting the error in the trend wind power prediction were developed. This research provides a foundation for testing and evaluating the modified unit commitment and generation control that was developed to maintain operating reliability at a greatly reduced overall production cost for utilities with wind generation capacity.

  5. Engineering the Implementation of Pumped Hydro Energy Storage in the Arizona Power Grid

    NASA Astrophysics Data System (ADS)

    Dixon, William Jesse J.

    This thesis addresses the issue of making an economic case for bulk energy storage in the Arizona bulk power system. Pumped hydro energy storage (PHES) is used in this study. Bulk energy storage has often been suggested for large scale electric power systems in order to levelize load (store energy when it is inexpensive [energy demand is low] and discharge energy when it is expensive [energy demand is high]). It also has the potential to provide opportunities to avoid transmission and generation expansion, and provide for generation reserve margins. As the level of renewable energy resources increases, the uncertainty and variability of wind and solar resources may be improved by bulk energy storage technologies. For this study, the MATLab software platform is used, a mathematical based modeling language, optimization solvers (specifically Gurobi), and a power flow solver (PowerWorld) are used to simulate an economic dispatch problem that includes energy storage and transmission losses. A program is created which utilizes quadratic programming to analyze various cases using a 2010 summer peak load from the Arizona portion of the Western Electricity Coordinating Council (WECC) system. Actual data from industry are used in this test bed. In this thesis, the full capabilities of Gurobi are not utilized (e.g., integer variables, binary variables). However, the formulation shown here does create a platform such that future, more sophisticated modeling may readily be incorporated. The developed software is used to assess the Arizona test bed with a low level of energy storage to study how the storage power limit effects several optimization outputs such as the system wide operating costs. Large levels of energy storage are then added to see how high level energy storage affects peak shaving, load factor, and other system applications. Finally, various constraint relaxations are made to analyze why the applications tested eventually approach a constant value. This research illustrates the use of energy storage which helps minimize the system wide generator operating cost by "shaving" energy off of the peak demand. The thesis builds on the work of another recent researcher with the objectives of strengthening the assumptions used, checking the solutions obtained, utilizing higher level simulation languages to affirm results, and expanding the results and conclusions. One important point not fully discussed in the present thesis is the impact of efficiency in the pumped hydro cycle. The efficiency of the cycle for modern units is estimated at higher than 90%. Inclusion of pumped hydro losses is relegated to future work.

  6. Smart Aquarium as Physics Learning Media for Renewable Energy

    NASA Astrophysics Data System (ADS)

    Desnita, D.; Raihanati, R.; Susanti, D.

    2018-04-01

    Smart aquarium has been developed as a learning media to visualize Micro Hydro Power Generator (MHPG). Its used aquarium water circulation system and Wind Power Generation (WPG) which generated through a wheel as a source. Its also used to teach about energy changes, circular motion and wheel connection, electromagnetic impact, and AC power circuit. The output power and system efficiency was adjusted through the adjustment of water level and wind speed. Specific targets in this research are: to achieved: (i) develop green aquarium technology that’s suitable to used as a medium of physics learning, (ii) improving quality of process and learning result at a senior high school student. Research method used development research by Borg and Gall, which includes preliminary studies, design, product development, expert validation, and product feasibility test, and vinalisation. The validation test by the expert states that props feasible to use. Limited trials conducted prove that this tool can improve students science process skills.

  7. Tsuwalhkalh Ti Tmicwa (The Land is Ours): Stat'imc Self-Determination in the Face of Large-Scale Hydro-electric Development

    NASA Astrophysics Data System (ADS)

    Moritz, Sarah Carmen

    In Canada, First Nations asserting authority over their lands are developing diverse strategies to overcome the state''s dogmatic insistence on jurisdictional sovereignty. This movement corresponds to the wider context of the challenges faced by indigenous people to use their own ways of knowing to resist or reformulate legal doctrines and political tenets based on colonial power. Interior Salish Stat'imc people identify themselves through a strong and ongoing social relationship with Sataqwa7, the Fraser River, and the "Valley of Plenty"---now known as the flooded Bridge River Valley---maintained through Stat'imc knowledge and cultural practice and demonstrated by talk of '"the Stat'imc right to fish" and Tsuwalhkalh Ti Tmicwa (The Land is Ours). Stat'imc fishers are prepared to contest and resist any regulatory system that is understood to impact this right to fish while they advocate their own ways of sustainable fishing and water management. Based on ethnographic research in collaboration with Stat'imc people, this thesis explores some of these often successful contestations especially in the context of increasing territorial governance and by example of the rapidly transforming relationship between Stat'imc, BC Hydro and the Province of BC. Interior Salish Stat'imc people are currently navigating through a significant phase of increasing jurisdiction and authority and recognition of (unsettled) territorial property relationships. This very dynamic process is marked by strategic collaborations, compensation for 'infringements' on St'a'imc Title and Rights, and conservation efforts to protect their home. An important example is the changing relationship between Stat'imc people and BC Hydro---a relationship between two groups with radically different cultures and agendas: Stat'imc people in a struggle for self-determination, social justice and cultural survival and BC Hydro, a corporate culture, with the agenda to provide hydro-electric power to BC, maintain operation 'certainty' and to generate revenue. Exploring the different ways of relating to and acting on the land will allow for more holistic and shared cultural practices of co-governing land, working collectively, remembering history, co-existing in the present and sharing a common future according to the ethical ideals of reconciliation: accountability for wrongdoing, justice, sharing, respect, transcending of hegemonic silences and increased public knowledge.

  8. Issues regarding the usage of MPPT techniques in micro grid systems

    NASA Astrophysics Data System (ADS)

    Szeidert, I.; Filip, I.; Dragan, F.; Gal, A.

    2018-01-01

    The main objective of the control strategies applied at hybrid micro grid systems (wind/hydro/solar), that function based on maximum power point tracking (MPPT) techniques is to improve the conversion system’s efficiency and to preserve the quality of the generated electrical energy (voltage and power factor). One of the main goals of maximum power point tracking strategy is to achieve the harvesting of the maximal possible energy within a certain time period. In order to implement the control strategies for micro grid, there are typically required specific transducers (sensor for wind speed, optical rotational transducers, etc.). In the technical literature, several variants of the MPPT techniques are presented and particularized at some applications (wind energy conversion systems, solar systems, hydro plants, micro grid hybrid systems). The maximum power point tracking implementations are mainly based on two-level architecture. The lower level controls the main variable and the superior level represents the MPPT control structure. The paper presents micro grid structures developed at Politehnica University Timisoara (PUT) within the frame of a research grant. The paper is focused on the application of MPPT strategies on hybrid micro grid systems. There are presented several structures and control strategies and are highlighted their advantages and disadvantages, together with practical implementation guidelines.

  9. 18 CFR 801.12 - Electric power generation.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 18 Conservation of Power and Water Resources 2 2012-04-01 2012-04-01 false Electric power... COMMISSION GENERAL POLICIES § 801.12 Electric power generation. (a) Significant uses are presently being made of the waters of the basin for the generation of electric power at hydro, pumped storage, and...

  10. 18 CFR 801.12 - Electric power generation.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 18 Conservation of Power and Water Resources 2 2010-04-01 2010-04-01 false Electric power... COMMISSION GENERAL POLICIES § 801.12 Electric power generation. (a) Significant uses are presently being made of the waters of the basin for the generation of electric power at hydro, pumped storage, and...

  11. 18 CFR 801.12 - Electric power generation.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 18 Conservation of Power and Water Resources 2 2011-04-01 2011-04-01 false Electric power... COMMISSION GENERAL POLICIES § 801.12 Electric power generation. (a) Significant uses are presently being made of the waters of the basin for the generation of electric power at hydro, pumped storage, and...

  12. 18 CFR 801.12 - Electric power generation.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 18 Conservation of Power and Water Resources 2 2014-04-01 2014-04-01 false Electric power... COMMISSION GENERAL POLICIES § 801.12 Electric power generation. (a) Significant uses are presently being made of the waters of the basin for the generation of electric power at hydro, pumped storage, and...

  13. 18 CFR 801.12 - Electric power generation.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 18 Conservation of Power and Water Resources 2 2013-04-01 2012-04-01 true Electric power... COMMISSION GENERAL POLICIES § 801.12 Electric power generation. (a) Significant uses are presently being made of the waters of the basin for the generation of electric power at hydro, pumped storage, and...

  14. 77 FR 12276 - Combined Notice of Filings #2

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-29

    ..., LLC, Bear Swamp Power Company LLC, Brookfield Energy Marketing Inc., Brookfield Energy Marketing LP...., Erie Boulevard Hydropower, L.P., Granite Reliable Power, LLC, Great Lakes Hydro America, LLC, Hawks...

  15. The HydroColor App: Above Water Measurements of Remote Sensing Reflectance and Turbidity Using a Smartphone Camera

    PubMed Central

    Leeuw, Thomas; Boss, Emmanuel

    2018-01-01

    HydroColor is a mobile application that utilizes a smartphone’s camera and auxiliary sensors to measure the remote sensing reflectance of natural water bodies. HydroColor uses the smartphone’s digital camera as a three-band radiometer. Users are directed by the application to collect a series of three images. These images are used to calculate the remote sensing reflectance in the red, green, and blue broad wavelength bands. As with satellite measurements, the reflectance can be inverted to estimate the concentration of absorbing and scattering substances in the water, which are predominately composed of suspended sediment, chlorophyll, and dissolved organic matter. This publication describes the measurement method and investigates the precision of HydroColor’s reflectance and turbidity estimates compared to commercial instruments. It is shown that HydroColor can measure the remote sensing reflectance to within 26% of a precision radiometer and turbidity within 24% of a portable turbidimeter. HydroColor distinguishes itself from other water quality camera methods in that its operation is based on radiometric measurements instead of image color. HydroColor is one of the few mobile applications to use a smartphone as a completely objective sensor, as opposed to subjective user observations or color matching using the human eye. This makes HydroColor a powerful tool for crowdsourcing of aquatic optical data. PMID:29337917

  16. The HydroColor App: Above Water Measurements of Remote Sensing Reflectance and Turbidity Using a Smartphone Camera.

    PubMed

    Leeuw, Thomas; Boss, Emmanuel

    2018-01-16

    HydroColor is a mobile application that utilizes a smartphone's camera and auxiliary sensors to measure the remote sensing reflectance of natural water bodies. HydroColor uses the smartphone's digital camera as a three-band radiometer. Users are directed by the application to collect a series of three images. These images are used to calculate the remote sensing reflectance in the red, green, and blue broad wavelength bands. As with satellite measurements, the reflectance can be inverted to estimate the concentration of absorbing and scattering substances in the water, which are predominately composed of suspended sediment, chlorophyll, and dissolved organic matter. This publication describes the measurement method and investigates the precision of HydroColor's reflectance and turbidity estimates compared to commercial instruments. It is shown that HydroColor can measure the remote sensing reflectance to within 26% of a precision radiometer and turbidity within 24% of a portable turbidimeter. HydroColor distinguishes itself from other water quality camera methods in that its operation is based on radiometric measurements instead of image color. HydroColor is one of the few mobile applications to use a smartphone as a completely objective sensor, as opposed to subjective user observations or color matching using the human eye. This makes HydroColor a powerful tool for crowdsourcing of aquatic optical data.

  17. Hydro development in Costa Rica

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Young, C.F.

    The initial foreign thrust of private power activities was quite naturally by large companies acquiring existing government-owned facilities in relatively large countries. Only recently, it seems, people have discovered that there are countries in Latin America other than Argentina, Brazil, and Mexico, and that there is interest in having the private sector construct new (and often smaller) facilities, with an increasing emphasis on renewable energy. Costa Rica passed its private power law in 1991 and has clearly been the most progressive country in Central America in promoting greenfield development of private power projects. The country has not been exempt, however,more » from the cyclical nature of the support that governments, utilities and regulatory agencies give to private power producers. The initial enthusiasm and willingness to encourage private power producers inevitably give way to requirements and procedures which impair if not thwart the initial intentions of the private power laws.« less

  18. A decision support system for real-time hydropower scheduling in a competitive power market environment

    NASA Astrophysics Data System (ADS)

    Shawwash, Ziad Khaled Elias

    2000-10-01

    The electricity supply market is rapidly changing from a monopolistic to a competitive environment. Being able to operate their system of reservoirs and generating facilities to get maximum benefits out of existing assets and resources is important to the British Columbia Hydro Authority (B.C. Hydro). A decision support system has been developed to help B.C. Hydro operate their system in an optimal way. The system is operational and is one of the tools that are currently used by the B.C. Hydro system operations engineers to determine optimal schedules that meet the hourly domestic load and also maximize the value B.C. Hydro obtains from spot transactions in the Western U.S. and Alberta electricity markets. This dissertation describes the development and implementation of the decision support system in production mode. The decision support system consists of six components: the input data preparation routines, the graphical user interface (GUI), the communication protocols, the hydraulic simulation model, the optimization model, and the results display software. A major part of this work involved the development and implementation of a practical and detailed large-scale optimization model that determines the optimal tradeoff between the long-term value of water and the returns from spot trading transactions in real-time operations. The postmortem-testing phase showed that the gains in value from using the model accounted for 0.25% to 1.0% of the revenues obtained. The financial returns from using the decision support system greatly outweigh the costs of building it. Other benefits are the savings in the time needed to prepare the generation and trading schedules. The system operations engineers now can use the time saved to focus on other important aspects of their job. The operators are currently experimenting with the system in production mode, and are gradually gaining confidence that the advice it provides is accurate, reliable and sensible. The main lesson learned from developing and implementing the system was that there is no alternative to working very closely with the intended end-users of the system, and with the people who have deep knowledge, experience and understanding of how the system is and should be operated.

  19. Power Conversion and Energy Storage System for a Fusion Reactor 3. Performance of Large Electric Power Equipment and Future View 3.1 Large Capacity Battery System -Sodium-Sulfur Battery-

    NASA Astrophysics Data System (ADS)

    Nakabayashi, Takashi

    The Ford Motor Company proposed the principle of the sodium-sulfur battery based on a beta-alumina solid electrolyte in 1967. Accordingly, sodium-sulfur battery technology was initially developed primarily for electric vehicle applications. Later, the Tokyo Electric Power Company (TEPCO) selected the sodium-sulfur battery technology as the preferred system for a dispersed utility energy storage system to substitute for the pumped hydro energy storage system. NGK Insulators, Ltd. (NGK) and TEPCO have jointly carried out the development of the sodium-sulfur battery since 1984. In April 2002, TEPCO and NGK made the sodium-sulfur battery for use as an energy storage system commercially available.

  20. Seasonal-Scale Optimization of Conventional Hydropower Operations in the Upper Colorado System

    NASA Astrophysics Data System (ADS)

    Bier, A.; Villa, D.; Sun, A.; Lowry, T. S.; Barco, J.

    2011-12-01

    Sandia National Laboratories is developing the Hydropower Seasonal Concurrent Optimization for Power and the Environment (Hydro-SCOPE) tool to examine basin-wide conventional hydropower operations at seasonal time scales. This tool is part of an integrated, multi-laboratory project designed to explore different aspects of optimizing conventional hydropower operations. The Hydro-SCOPE tool couples a one-dimensional reservoir model with a river routing model to simulate hydrology and water quality. An optimization engine wraps around this model framework to solve for long-term operational strategies that best meet the specific objectives of the hydrologic system while honoring operational and environmental constraints. The optimization routines are provided by Sandia's open source DAKOTA (Design Analysis Kit for Optimization and Terascale Applications) software. Hydro-SCOPE allows for multi-objective optimization, which can be used to gain insight into the trade-offs that must be made between objectives. The Hydro-SCOPE tool is being applied to the Upper Colorado Basin hydrologic system. This system contains six reservoirs, each with its own set of objectives (such as maximizing revenue, optimizing environmental indicators, meeting water use needs, or other objectives) and constraints. This leads to a large optimization problem with strong connectedness between objectives. The systems-level approach used by the Hydro-SCOPE tool allows simultaneous analysis of these objectives, as well as understanding of potential trade-offs related to different objectives and operating strategies. The seasonal-scale tool will be tightly integrated with the other components of this project, which examine day-ahead and real-time planning, environmental performance, hydrologic forecasting, and plant efficiency.

  1. The vulnerability and resilience of a city's water footprint: The case of Flagstaff, Arizona, USA

    NASA Astrophysics Data System (ADS)

    Rushforth, Richard R.; Ruddell, Benjamin L.

    2016-04-01

    Research has yet to operationalize water footprint information for urban water policy and planning to reduce vulnerability and increase resilience to water scarcity. Using a county-level database of the U.S. hydro-economy, NWED, we spatially mapped and analyzed the Water Footprint of Flagstaff, Arizona, a small city. Virtual water inflow and outflow networks were developed using the flow of commodities into and out of the city. The power law distribution of virtual water trade volume between Flagstaff and its county trading partners broke at a spatial distance of roughly 2000 km. Most large trading partners are within this geographical distance, and this distance is an objective definition for Flagstaff's zone of indirect hydro-economic influence—that is, its water resource hinterland. Metrics were developed to measure Flagstaff's reliance on virtual water resources, versus direct use of local physical water resources. Flagstaff's reliance on external water supplies via virtual water trade increases both its hydro-economic resilience and vulnerability to water scarcity. These methods empower city managers to operationalize the city's Water Footprint information to reduce vulnerability, increase resilience, and optimally balance the allocation of local physical water supplies with the outsourcing of some water uses via the virtual water supply chain.

  2. 75 FR 9591 - FirstLight Hydro Generating Company; Notice of Application for Amendment of License and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-03

    ...: Federal Power Act, 16 U.S.C. 791(a)-825(r). h. Applicant Contact: Mr. Robert Gates, Station Manager-Connecticut Hydro, 143 West St., Ext. Suite E, New Milford, CT 06776, (860) 350- 3617. i. FERC Contact: Any questions on this notice should be addressed to Isis Johnson at (202) 502-6346, or by e-mail: Isis.Johnson...

  3. 76 FR 79671 - Parker Knoll Hydro, LLC; Notice of Application Tendered for Filing With the Commission and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-22

    ... project would be a closed-loop pumped storage system, with an initial fill from the existing Otter Creek...: Federal Power Act 16 U.S.C. 791(a)-825(r). h. Applicant Contact: Parker Knoll Hydro, LLC., 975 South State... system; (12) approximately 1 mile of 345-kV transmission line; and (13) appurtenant facilities. The...

  4. Integrating hydrologic modeling web services with online data sharing to prepare, store, and execute models in hydrology

    NASA Astrophysics Data System (ADS)

    Gan, T.; Tarboton, D. G.; Dash, P. K.; Gichamo, T.; Horsburgh, J. S.

    2017-12-01

    Web based apps, web services and online data and model sharing technology are becoming increasingly available to support research. This promises benefits in terms of collaboration, platform independence, transparency and reproducibility of modeling workflows and results. However, challenges still exist in real application of these capabilities and the programming skills researchers need to use them. In this research we combined hydrologic modeling web services with an online data and model sharing system to develop functionality to support reproducible hydrologic modeling work. We used HydroDS, a system that provides web services for input data preparation and execution of a snowmelt model, and HydroShare, a hydrologic information system that supports the sharing of hydrologic data, model and analysis tools. To make the web services easy to use, we developed a HydroShare app (based on the Tethys platform) to serve as a browser based user interface for HydroDS. In this integration, HydroDS receives web requests from the HydroShare app to process the data and execute the model. HydroShare supports storage and sharing of the results generated by HydroDS web services. The snowmelt modeling example served as a use case to test and evaluate this approach. We show that, after the integration, users can prepare model inputs or execute the model through the web user interface of the HydroShare app without writing program code. The model input/output files and metadata describing the model instance are stored and shared in HydroShare. These files include a Python script that is automatically generated by the HydroShare app to document and reproduce the model input preparation workflow. Once stored in HydroShare, inputs and results can be shared with other users, or published so that other users can directly discover, repeat or modify the modeling work. This approach provides a collaborative environment that integrates hydrologic web services with a data and model sharing system to enable model development and execution. The entire system comprised of the HydroShare app, HydroShare and HydroDS web services is open source and contributes to capability for web based modeling research.

  5. Using climate response functions in analyzing electricity production variables. A case study from Norway.

    NASA Astrophysics Data System (ADS)

    Tøfte, Lena S.; Martino, Sara; Mo, Birger

    2016-04-01

    This study analyses whether and to which extent today's hydropower system and reservoirs in Mid-Norway are able to balance new intermittent energy sources in the region, in both today's and tomorrow's climate. We also investigate if the electricity marked model EMPS gives us reasonable results also when run in a multi simulation mode without recalibration. Climate related energy (CRE) is influenced by the weather, the system for energy production and transport, and by market mechanisms. In the region of Mid-Norway, nearly all power demand is generated by hydro-electric facilities. Due to energy deficiency and limitations in the power grid the region experiences a deficit of electricity. The region is likely to experience considerable investments in wind power and small-scale hydropower and the transmission grid within and out of the region will probably be extended, so this situation might change. In addition climate change scenarios for the region agree on higher temperatures, more precipitation in total and a larger portion of the precipitation coming as rain instead of snow, as well as we expect slightly higher wind speed and more storms during the winter. Changing temperatures will also change the electricity demand. EMPS is a tool for forecasting and planning in electricity markets, developed for optimization and simulation of hydrothermal power systems with a considerable share of hydro power. It takes into account transport constraints and hydrological differences between major areas or regional subsystems. During optimization the objective is to minimize the expected cost in the whole system subject to all constraints. Incremental water values (marginal costs for hydropower) are computed for each area using stochastic dynamic programming. A heuristic approach is used to treat the interaction between areas. In the simulation part of the model total system costs are minimized week by week for each climate scenario in a linear problem formulation. A detailed representation of hydropower is included and total hydro power production for each area is calculated, and the production is distributed among all available plants within each area. During simulation, the demand is affected by prices and temperatures. 6 different infrastructure scenarios of wind and power line development are analyzed. The analyses are done by running EMPS calibrated for today's situation for 11*11*8 different combinations of altered weather variables (temperature, precipitation and wind) describing different climate change scenarios, finding the climate response function for every EMPS-variable according the electricity production, such as prices and income, energy balances (supply, consumption and trade), overflow losses, probability of curtailment etc .

  6. The Himalayan hydro machine and space transmission power systems - An Asian dream of 21st century

    NASA Astrophysics Data System (ADS)

    Admoddie, M.

    The advantages and disadvantages for the development of hydroelectric power are assessed for the Himalayan Rectangle, an area rising 1500 km north of a baseline between Karachi and Mandalay. This area has the potential for possessing one of the world's greatest power production capabilities. Among the disadvantages cited are the political instability and religious fundamentalism of the area, the bankrupt governments, environmental degradation, and inefficient power and irrigation systems. The advantages include the millions of talented and enterprising people in the region awaiting higher opportunities who are eager to improve their families' living standards and the large untapped hydropower resources. The concepts for hydropower development are discussed and go beyond the technologies of power and water. They include catchment ecodevelopment strategies with massive afforestation plans, setting up plans to strengthen village-level institutions to manage local natural biomass and water assets, the conversion of this regional hydropower potential into a subcontinental power system, and the exporting of power and the development of an interregional and international power grid by 2030, when both oil and local ecosystems would be dangerously depleted.

  7. Prediction of a Francis turbine prototype full load instability from investigations on the reduced scale model

    NASA Astrophysics Data System (ADS)

    Alligné, S.; Maruzewski, P.; Dinh, T.; Wang, B.; Fedorov, A.; Iosfin, J.; Avellan, F.

    2010-08-01

    The growing development of renewable energies combined with the process of privatization, lead to a change of economical energy market strategies. Instantaneous pricings of electricity as a function of demand or predictions, induces profitable peak productions which are mainly covered by hydroelectric power plants. Therefore, operators harness more hydroelectric facilities at full load operating conditions. However, the Francis Turbine features an axi-symmetric rope leaving the runner which may act under certain conditions as an internal energy source leading to instability. Undesired power and pressure fluctuations are induced which may limit the maximum available power output. BC Hydro experiences such constraints in a hydroelectric power plant consisting of four 435 MW Francis Turbine generating units, which is located in Canada's province of British Columbia. Under specific full load operating conditions, one unit experiences power and pressure fluctuations at 0.46 Hz. The aim of the paper is to present a methodology allowing prediction of this prototype's instability frequency from investigations on the reduced scale model. A new hydro acoustic vortex rope model has been developed in SIMSEN software, taking into account the energy dissipation due to the thermodynamic exchange between the gas and the surrounding liquid. A combination of measurements, CFD simulations and computation of eigenmodes of the reduced scale model installed on test rig, allows the accurate calibration of the vortex rope model parameters at the model scale. Then, transposition of parameters to the prototype according to similitude laws is applied and stability analysis of the power plant is performed. The eigenfrequency of 0.39 Hz related to the first eigenmode of the power plant is determined to be unstable. Predicted frequency of the full load power and pressure fluctuations at the unit unstable operating point is found to be in general agreement with the prototype measurements.

  8. Optimization of the Water Volume in the Buckets of Pico Hydro Overshot Waterwheel by Analytical Method

    NASA Astrophysics Data System (ADS)

    Budiarso; Adanta, Dendy; Warjito; Siswantara, A. I.; Saputra, Pradhana; Dianofitra, Reza

    2018-03-01

    Rapid economic and population growth in Indonesia lead to increased energy consumption, including electricity needs. Pico hydro is considered as the right solution because the cost of investment and operational cost are fairly low. Additionally, Indonesia has many remote areas with high hydro-energy potential. The overshot waterwheel is one of technology that is suitable to be applied in remote areas due to ease of operation and maintenance. This study attempts to optimize bucket dimensions with the available conditions. In addition, the optimization also has a good impact on the amount of generated power because all available energy is utilized maximally. Analytical method is used to evaluate the volume of water contained in bucket overshot waterwheel. In general, there are two stages performed. First, calculation of the volume of water contained in each active bucket is done. If the amount total of water contained is less than the available discharge in active bucket, recalculation at the width of the wheel is done. Second, calculation of the torque of each active bucket is done to determine the power output. As the result, the mechanical power generated from the waterwheel is 305 Watts with the efficiency value of 28%.

  9. 77 FR 5247 - Southwestern Power Administration; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-02

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. EF12-1-000] Southwestern Power Administration; Notice of Filing Take notice that on January 9, 2012, the Deputy Secretary of the... Administration Integrated System Rates, Rate Schedule P-11, Wholesale Rates for Hydro Peaking Power, Rate...

  10. Miniature ceramic fuel cell

    DOEpatents

    Lessing, Paul A.; Zuppero, Anthony C.

    1997-06-24

    A miniature power source assembly capable of providing portable electricity is provided. A preferred embodiment of the power source assembly employing a fuel tank, fuel pump and control, air pump, heat management system, power chamber, power conditioning and power storage. The power chamber utilizes a ceramic fuel cell to produce the electricity. Incoming hydro carbon fuel is automatically reformed within the power chamber. Electrochemical combustion of hydrogen then produces electricity.

  11. U. K. to resume natural gas imports

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Not Available

    1992-02-17

    This paper reports that the U.K. government has opened the way for resuming gas imports into Britain by approving a contract signed by U.K. electric power utility National Power to buy gas from Norway. A new joint marketing venture of BP Exploration, Den norske stats oljeselskap AS (Statoil), and Norsk Hydro AS also will be allowed to import gas for electric power plant fuel once it has a contract. National Power and the BP/Statoil/Norsk Hydro group will use the Frigg pipeline from Norwegian waters into St. Fergus, north of Aberdeen, the only existing link between the British transmission system andmore » foreign supplies of gas. Meantime, progress is under way toward a second pipeline to link the U.K. with foreign natural gas supplies, calling for a pipeline across the English Channel joining the continental European pipeline system to the U.K. network.« less

  12. Tubular-Type Hydroturbine Performance for Variable Guide Vane Opening by CFD

    NASA Astrophysics Data System (ADS)

    Kim, Y. T.; Nam, S. H.; Cho, Y. J.; Hwang, Y. C.; Choi, Y. D.; Nam, C. D.; Lee, Y. H.

    Micro hydraulic power generation which has output of less or equal to 100kW is attracting considerable attention. This is because of its small, simple, renewable, and large amount of energy resources. By using a small hydro power generator of which main concept is based on using differential water pressures in pipe lines, energy which was initially wasted by use of a reducing valve at an end of the pipeline, is collected by a turbine in the hydro power generator. A propeller shaped hydroturbine has been used in order to make use of this renewable pressure energy. In this study, in order to acquire basic design data of tubular type hydroturbine, output power, head, and efficiency characteristics due to the guide vane opening angle are examined in detail. Moreover, influences of pressure, tangential and axial velocity distributions on turbine performance are investigated by using a commercial CFD code.

  13. Development of a land surface model with coupled snow and frozen soil physics

    NASA Astrophysics Data System (ADS)

    Wang, Lei; Zhou, Jing; Qi, Jia; Sun, Litao; Yang, Kun; Tian, Lide; Lin, Yanluan; Liu, Wenbin; Shrestha, Maheswor; Xue, Yongkang; Koike, Toshio; Ma, Yaoming; Li, Xiuping; Chen, Yingying; Chen, Deliang; Piao, Shilong; Lu, Hui

    2017-06-01

    Snow and frozen soil are important factors that influence terrestrial water and energy balances through snowpack accumulation and melt and soil freeze-thaw. In this study, a new land surface model (LSM) with coupled snow and frozen soil physics was developed based on a hydrologically improved LSM (HydroSiB2). First, an energy-balance-based three-layer snow model was incorporated into HydroSiB2 (hereafter HydroSiB2-S) to provide an improved description of the internal processes of the snow pack. Second, a universal and simplified soil model was coupled with HydroSiB2-S to depict soil water freezing and thawing (hereafter HydroSiB2-SF). In order to avoid the instability caused by the uncertainty in estimating water phase changes, enthalpy was adopted as a prognostic variable instead of snow/soil temperature in the energy balance equation of the snow/frozen soil module. The newly developed models were then carefully evaluated at two typical sites of the Tibetan Plateau (TP) (one snow covered and the other snow free, both with underlying frozen soil). At the snow-covered site in northeastern TP (DY), HydroSiB2-SF demonstrated significant improvements over HydroSiB2-F (same as HydroSiB2-SF but using the original single-layer snow module of HydroSiB2), showing the importance of snow internal processes in three-layer snow parameterization. At the snow-free site in southwestern TP (Ngari), HydroSiB2-SF reasonably simulated soil water phase changes while HydroSiB2-S did not, indicating the crucial role of frozen soil parameterization in depicting the soil thermal and water dynamics. Finally, HydroSiB2-SF proved to be capable of simulating upward moisture fluxes toward the freezing front from the underlying soil layers in winter.

  14. Climate impacts on hydropower and consequences for global electricity supply investment needs

    DOE PAGES

    Turner, Sean W. D.; Hejazi, Mohamad; Kim, Son H.; ...

    2017-11-15

    Climate change is projected to increase hydropower generation in some parts of the world and decrease it in others. Here we explore the possible consequences of these impacts for the electricity supply sector at the global scale. Regional hydropower projections are developed by forcing a coupled global hydrological and dam model with downscaled, bias-corrected climate realizations. Consequent impacts on power sector composition and associated emissions and investment costs are explored using the Global Change Assessment Model (GCAM). We find that climate-driven changes in hydropower generation may shift power demands onto and away from carbon intensive technologies. This then causes significantlymore » altered power sector CO 2 emissions in several hydro-dependent regions, although the net global impact is modest. For drying regions, we estimate a global, cumulative investment need of approximately one trillion dollars (±$500 billion) this century to make up for deteriorated hydropower generation caused by climate change. Total investments avoided are of a similar magnitude across regions projected to experience increased precipitation. Investment risks and opportunities are concentrated in hydro-dependent countries for which significant climate change is expected. Various countries throughout the Balkans, Latin America and Southern Africa are most vulnerable, whilst Norway, Canada, and Bhutan emerge as clear beneficiaries.« less

  15. Climate impacts on hydropower and consequences for global electricity supply investment needs

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Turner, Sean W. D.; Hejazi, Mohamad; Kim, Son H.

    Climate change is projected to increase hydropower generation in some parts of the world and decrease it in others. Here we explore the possible consequences of these impacts for the electricity supply sector at the global scale. Regional hydropower projections are developed by forcing a coupled global hydrological and dam model with downscaled, bias-corrected climate realizations. Consequent impacts on power sector composition and associated emissions and investment costs are explored using the Global Change Assessment Model (GCAM). We find that climate-driven changes in hydropower generation may shift power demands onto and away from carbon intensive technologies. This then causes significantlymore » altered power sector CO 2 emissions in several hydro-dependent regions, although the net global impact is modest. For drying regions, we estimate a global, cumulative investment need of approximately one trillion dollars (±$500 billion) this century to make up for deteriorated hydropower generation caused by climate change. Total investments avoided are of a similar magnitude across regions projected to experience increased precipitation. Investment risks and opportunities are concentrated in hydro-dependent countries for which significant climate change is expected. Various countries throughout the Balkans, Latin America and Southern Africa are most vulnerable, whilst Norway, Canada, and Bhutan emerge as clear beneficiaries.« less

  16. Comparison of hydro-environmental impacts for ebb-only and two-way generation for a Severn Barrage

    NASA Astrophysics Data System (ADS)

    Ahmadian, Reza; Falconer, Roger A.; Bockelmann-Evans, Bettina

    2014-10-01

    Marine renewable energy is playing an increasing significant role in many parts of the world, mainly due to a rise in the awareness of climate change, and its detrimental effects, and the increasing cost of natural resources. The Severn Estuary, located between South West England and South Wales, has a tidal range of up to 14 m which makes it the second highest tidal range in the world. There are a number of barrage proposals amongst various marine renewable energy schemes proposed to be built in the estuary. The Cardiff-Weston STPG (Severn Tidal Power Group) Barrage, which would be one of the world's largest tidal renewable energy schemes if built, is one of the most publicised schemes to-date. This barrage would generate about 17 TWh/annum of power, which is approximately 5% of the UK's electricity consumption, whilst causing significant hydro-environmental and ecological impact on the estuary. This study mainly focuses on investigating the hydro-environmental impacts of the STPG barrage for the option of two-way generation, and compares this with the commonly investigated option of ebb-only generation. The impacts of the barrage were modelled by implementing a linked 1-D/2-D hydro-environmental model, with the capability of modelling several key environmental processes. The model predictions show that the hydro-environmental impacts of the barrage on the Severn Estuary and Bristol Channel, such as changes in the maximum velocity and reduction in suspended sediment and bacteria levels, were less significant for the two-way generation scheme when compared with the corresponding impacts for ebb-only generation.

  17. Wind-Driven Ecological Flow Regimes Downstream from Hydropower Dams

    NASA Astrophysics Data System (ADS)

    Kern, J.; Characklis, G. W.

    2012-12-01

    Conventional hydropower can be turned on and off quicker and less expensively than thermal generation (coal, nuclear, or natural gas). These advantages enable hydropower utilities to respond to rapid fluctuations in energy supply and demand. More recently, a growing renewable energy sector has underlined the need for flexible generation capacity that can complement intermittent renewable resources such as wind power. While wind power entails lower variable costs than other types of generation, incorporating it into electric power systems can be problematic. Due to variable and unpredictable wind speeds, wind power is difficult to schedule and must be used when available. As a result, integrating large amounts of wind power into the grid may result in atypical, swiftly changing demand patterns for other forms of generation, placing a premium on sources that can be rapidly ramped up and down. Moreover, uncertainty in wind power forecasts will stipulate increased levels of 'reserve' generation capacity that can respond quickly if real-time wind supply is less than expected. These changes could create new hourly price dynamics for energy and reserves, altering the short-term financial signals that hydroelectric dam operators use to schedule water releases. Traditionally, hourly stream flow patterns below hydropower dams have corresponded in a very predictable manner to electricity demand, whose primary factors are weather (hourly temperature) and economic activity (workday hours). Wind power integration has the potential to yield more variable, less predictable flows at hydro dams, flows that at times could resemble reciprocal wind patterns. An existing body of research explores the impacts of standard, demand-following hydroelectric dams on downstream ecological flows; but weighing the benefits of increased reliance on wind power against further impacts to ecological flows may be a novel challenge for the environmental community. As a preliminary step in meeting this challenge, the following study was designed to investigate the potential for wind power integration to alter riparian flow regimes below hydroelectric dams. A hydrological model of a three-dam cascade in the Roanoke River basin (Virginia, USA) is interfaced with a simulated electricity market (i.e. a unit commitment problem) representing the Dominion Zone of PJM Interconnection. Incorporating forecasts of electricity demand, hydro capacity and wind availability, a mixed-integer optimization program minimizes the system cost of meeting hourly demand and reserve requirements by means of a diverse generation portfolio (e.g. nuclear, fossil, hydro, and biomass). A secondary 'balancing' energy market is executed if real-time wind generation is less than the day-ahead forecast, calling upon reserved generation resources to meet the supply shortfall. Hydropower release schedules are determined across a range of wind development scenarios (varying wind's fraction of total installed generating capacity, as well as its geographical source region). Flow regimes for each wind development scenario are compared against both historical and simulated flows under current operations (negligible wind power), as well as simulated natural flows (dam removal), in terms of ecologically relevant flow metrics. Results quantify the ability of wind power development to alter within-week stream flows downstream from hydropower dams.

  18. Transient flow analysis linked to fast pressure disturbance monitored in pipe systems

    NASA Astrophysics Data System (ADS)

    Kueny, J. L.; Lourenco, M.; Ballester, J. L.

    2012-11-01

    EDF Hydro Division has launched the RENOUVEAU program in order to increase performance and improve plant availability through anticipation. Due to this program, a large penstocks fleet is equipped with pressure transducers linked to a special monitoring system. Any significant disturbance of the pressure is captured in a snapshot and the waveform of the signal is stored and analyzed. During these transient states, variations in flow are unknown. In order to determine the structural impact of such overpressure occurring during complex transients conditions over the entire circuit, EDF DTG has asked ENSE3 GRENOBLE to develop a code called ACHYL CF*. The input data of ACHYL CF are circuit topology and pressure boundaries conditions. This article provide a description of the computer code developed for modeling the transient flow in a pipe network using the signals from pressure transducers as boundary conditions. Different test cases will be presented, simulating real hydro power plants for which measured pressure signals are available.

  19. CalSimHydro Tool - A Web-based interactive tool for the CalSim 3.0 Hydrology Prepropessor

    NASA Astrophysics Data System (ADS)

    Li, P.; Stough, T.; Vu, Q.; Granger, S. L.; Jones, D. J.; Ferreira, I.; Chen, Z.

    2011-12-01

    CalSimHydro, the CalSim 3.0 Hydrology Preprocessor, is an application designed to automate the various steps in the computation of hydrologic inputs for CalSim 3.0, a water resources planning model developed jointly by California State Department of Water Resources and United States Bureau of Reclamation, Mid-Pacific Region. CalSimHydro consists of a five-step FORTRAN based program that runs the individual models in succession passing information from one model to the next and aggregating data as required by each model. The final product of CalSimHydro is an updated CalSim 3.0 state variable (SV) DSS input file. CalSimHydro consists of (1) a Rainfall-Runoff Model to compute monthly infiltration, (2) a Soil moisture and demand calculator (IDC) that estimates surface runoff, deep percolation, and water demands for natural vegetation cover and various crops other than rice, (3) a Rice Water Use Model to compute the water demands, deep percolation, irrigation return flow, and runoff from precipitation for the rice fields, (4) a Refuge Water Use Model that simulates the ponding operations for managed wetlands, and (5) a Data Aggregation and Transfer Module to aggregate the outputs from the above modules and transfer them to the CalSim SV input file. In this presentation, we describe a web-based user interface for CalSimHydro using Google Earth Plug-In. The CalSimHydro tool allows users to - interact with geo-referenced layers of the Water Budget Areas (WBA) and Demand Units (DU) displayed over the Sacramento Valley, - view the input parameters of the hydrology preprocessor for a selected WBA or DU in a time series plot or a tabular form, - edit the values of the input parameters in the table or by downloading a spreadsheet of the selected parameter in a selected time range, - run the CalSimHydro modules in the backend server and notify the user when the job is done, - visualize the model output and compare it with a base run result, - download the output SV file to be used to run CalSim 3.0. The CalSimHydro tool streamlines the complicated steps to configure and run the hydrology preprocessor by providing a user-friendly visual interface and back-end services to validate user inputs and manage the model execution. It is a powerful addition to the new CalSim 3.0 system.

  20. Linking Hydro-Meteorological Hazards, Climate and Food Security: an Initiative of International Scientific Community

    NASA Astrophysics Data System (ADS)

    Ismail-Zadeh, A.; Beer, T.

    2013-05-01

    Humans face climatic and hydro-meteorological hazards on different scales in time and space. In particular natural hazards can have disastrous impact in the short term (flood) and in the long term (drought) as they affect human life and health as well as impacting dramatically on the sustainable development of society. They represent a pending danger for vulnerable lifelines, infrastructure and the agricultural systems that depend on the water supply, reservoirs, pipelines, and power plants. Developed countries are affected, but the impact is disproportionate within the developing world. Extreme natural events such as extreme floods or prolonged drought can change the life and economic development of developing nations and stifle their development for decades. The beginning of the XX1st century has been marked by a significant number of natural disasters, such as floods, severe storms, wildfires, hurricanes, and tsunamis. Extreme natural events cause devastation resulting in loss of human life, large environmental damage, and partial or total loss of infrastructure that, in the longer time, will affect the potential for agricultural recovery. Recent catastrophic events of the early 21st century (e.g. floods in Pakistan and Thailand, the 2011 Tohoku earthquake and tsunami) remind us once again that there is a strong coupling between complex solid Earth, oceanic, and atmospheric processes and that even developed countries such as Japan are subject to agricultural declines as a result of disastrous hydro-meteorological events. Scientific community recognizes that communication between the groups of experts of various international organizations dealing with natural hazards and their activity in disaster risk reduction and food security needs to be strengthened. Several international scientific unions and intergovernmental institutions set up a consortium of experts to promote studies of weather, climate and their interaction with agriculture, food and their socio-economic consequence.

  1. 77 FR 40329 - U.S. Renewable Energy Trade Mission Philippines and Thailand, Manila, Philippines and Bangkok...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-09

    ... a few types of equipment where quality and efficiency are important: Inverters for solar PV power.... Geothermal. Hydropower. Wind power. Solar power. Both Thailand and the Philippines rank high on ITA's... through resources such as solar, wind energy, hydro and biomass resources. Total installed capacity of the...

  2. 75 FR 45607 - Application To Export Electric Energy; Manitoba Hydro

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-03

    ... that the proposed action will not adversely impact on the reliability of the U.S. electric power supply... United States to Canada pursuant to section 202(e) of the Federal Power Act (FPA). DATES: Comments... electric energy from the United States to Canada as a power marketer using existing international...

  3. Development and Test of HMPT-500

    DTIC Science & Technology

    1974-12-01

    previot General Electric units in that reverse and low forward speeds use hydrostatic drive with the more efficient hydro- mechanical drive being...Infantry Combat Vehicle, X1723, having a gross weight of 40,000 pounds. 2. fabrication of a minimum of two HNPT-500 power trains capable of adaptation to...b. a 10,000-mile durability test with a vehicle of approximately 40,000 pounds weight . The detailed Scope of Work specified in the contract is

  4. The Southwest Pacific: U.S. Interests and China’s Growing Influence

    DTIC Science & Technology

    2007-07-06

    additional $200,000 for emergency shelter, water , health, and sanitation provided through humanitarian organizations. Since 1995, USAID/OFDA has...China operates a large tuna fishing fleet in Fijian waters and has agreed to help develop a hydro power plant in the country. China, Taiwan, and the...accept Tuvalu’s entire population should rising sea levels inundate the island, which lies within five meters above water . The government of Tuvalu expects

  5. 78 FR 70029 - Combined Notice of Filings #1

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-22

    ... Solutions Corporation, Green Valley Hydro, LLC, Jersey Central Power & Light, Metropolitan Edison Company...-000. Applicants: Florida Power & Light Company. Description: FPL NITSA No. 266 Reallocation of Trans...-364-000. Applicants: Blue Sky West, LLC. Description: Request for Limited Waiver and Expedited Action...

  6. The marginalization of "small is beautiful": Micro-hydroelectricity, common property, and the politics of rural electricity provision in Thailand

    NASA Astrophysics Data System (ADS)

    Greacen, Christopher Edmund

    This study analyzes forces that constrain sustainable deployment of cost-effective renewable energy in a developing country. By many economic and social measures, community micro-hydro is a superior electrification option for remote mountainous communities in Thailand. Yet despite a 20 year government program, only 59 projects were built and of these less than half remain operating. By comparison, the national grid has extended to over 69,000 villages. Based on microeconomic, engineering, social barriers, common pool resource, and political economic theories, this study investigates first, why so few micro-hydro projects were built, and second, why so few remain operating. Drawing on historical information, site visits, interviews, surveys, and data logging, this study shows that the marginal status of micro-hydro arises from multiple linked factors spanning from village experiences to geopolitical concerns. The dominance of the parastatal rural electrification utility, the PEA, and its singular focus on grid extension are crucial in explaining why so few projects were built. Buffered from financial consequences by domestic and international subsidies, grid expansion proceeded without consideration of alternatives. High costs borne by villagers for micro-hydro discouraged village choice. PEA remains catalytic in explaining why few systems remain operating: grid expansion plans favor villages with existing loads and most villages abandon micro-hydro generators when the grid arrives. Village experiences are fundamental: most projects suffer blackouts, brownouts, and equipment failures due to poor equipment and collective over-consumption. Over-consumption is linked to mismatch between tariffs and generator technical characteristics. Opportunities to resolve problems languished as limited state support focused on building projects and immediate repairs rather than fundamentals. Despite frustrations, many remain proud of "their power plant". Interconnecting and selling electricity to PEA offers a mutually beneficial opportunity for the Thai public and for villagers, but one thus far thwarted by bureaucratic challenges. Explanations of renewable energy dissemination in countries with strong state involvement in rural electrification should borrow approaches from political economy concerning the ways in which politics and constellations of other factors eclipse rational economic behavior. At the village level, common pool resource theory reveals causal linkages between appliance use, equipment limitations, power quality, and equipment failures.

  7. HydroDesktop as a Community Designed and Developed Resource for Hydrologic Data Discovery and Analysis

    NASA Astrophysics Data System (ADS)

    Ames, D. P.

    2013-12-01

    As has been seen in other informatics fields, well-documented and appropriately licensed open source software tools have the potential to significantly increase both opportunities and motivation for inter-institutional science and technology collaboration. The CUAHSI HIS (and related HydroShare) projects have aimed to foster such activities in hydrology resulting in the development of many useful community software components including the HydroDesktop software application. HydroDesktop is an open source, GIS-based, scriptable software application for discovering data on the CUAHSI Hydrologic Information System and related resources. It includes a well-defined plugin architecture and interface to allow 3rd party developers to create extensions and add new functionality without requiring recompiling of the full source code. HydroDesktop is built in the C# programming language and uses the open source DotSpatial GIS engine for spatial data management. Capabilities include data search, discovery, download, visualization, and export. An extension that integrates the R programming language with HydroDesktop provides scripting and data automation capabilities and an OpenMI plugin provides the ability to link models. Current revision and updates to HydroDesktop include migration of core business logic to cross platform, scriptable Python code modules that can be executed in any operating system or linked into other software front-end applications.

  8. Design and Construction of a Hydroturbine Test Facility

    NASA Astrophysics Data System (ADS)

    Ayli, Ece; Kavurmaci, Berat; Cetinturk, Huseyin; Kaplan, Alper; Celebioglu, Kutay; Aradag, Selin; Tascioglu, Yigit; ETU Hydro Research Center Team

    2014-11-01

    Hydropower is one of the clean, renewable, flexible and efficient energy resources. Most of the developing countries invest on this cost-effective energy source. Hydroturbines for hydroelectric power plants are tailor-made. Each turbine is designed and constructed according to the properties, namely the head and flow rate values of the specific water source. Therefore, a center (ETU Hydro-Center for Hydro Energy Research) for the design, manufacturing and performance tests of hydraulic turbines is established at TOBB University of Economics and Technology to promote research in this area. CFD aided hydraulic and structural design, geometry optimization, manufacturing and performance tests of hydraulic turbines are the areas of expertise of this center. In this paper, technical details of the design and construction of this one of a kind test facility in Turkey, is explained. All the necessary standards of IEC (International Electrotechnical Commission) are met since the test facility will act as a certificated test center for hydraulic turbines.

  9. HydroDesktop: An Open Source GIS-Based Platform for Hydrologic Data Discovery, Visualization, and Analysis

    NASA Astrophysics Data System (ADS)

    Ames, D. P.; Kadlec, J.; Cao, Y.; Grover, D.; Horsburgh, J. S.; Whiteaker, T.; Goodall, J. L.; Valentine, D. W.

    2010-12-01

    A growing number of hydrologic information servers are being deployed by government agencies, university networks, and individual researchers using the Consortium of Universities for the Advancement of Hydrologic Science, Inc. (CUAHSI) Hydrologic Information System (HIS). The CUAHSI HIS Project has developed a standard software stack, called HydroServer, for publishing hydrologic observations data. It includes the Observations Data Model (ODM) database and Water Data Service web services, which together enable publication of data on the Internet in a standard format called Water Markup Language (WaterML). Metadata describing available datasets hosted on these servers is compiled within a central metadata catalog called HIS Central at the San Diego Supercomputer Center and is searchable through a set of predefined web services based queries. Together, these servers and central catalog service comprise a federated HIS of a scale and comprehensiveness never previously available. This presentation will briefly review/introduce the CUAHSI HIS system with special focus on a new HIS software tool called "HydroDesktop" and the open source software development web portal, www.HydroDesktop.org, which supports community development and maintenance of the software. HydroDesktop is a client-side, desktop software application that acts as a search and discovery tool for exploring the distributed network of HydroServers, downloading specific data series, visualizing and summarizing data series and exporting these to formats needed for analysis by external software. HydroDesktop is based on the open source DotSpatial GIS developer toolkit which provides it with map-based data interaction and visualization, and a plug-in interface that can be used by third party developers and researchers to easily extend the software using Microsoft .NET programming languages. HydroDesktop plug-ins that are presently available or currently under development within the project and by third party collaborators include functions for data search and discovery, extensive graphing, data editing and export, HydroServer exploration, integration with the OpenMI workflow and modeling system, and an interface for data analysis through the R statistical package.

  10. Hydro, wind and solar power as a base for a 100% renewable energy supply for South and Central America.

    PubMed

    Barbosa, Larissa de Souza Noel Simas; Bogdanov, Dmitrii; Vainikka, Pasi; Breyer, Christian

    2017-01-01

    Power systems for South and Central America based on 100% renewable energy (RE) in the year 2030 were calculated for the first time using an hourly resolved energy model. The region was subdivided into 15 sub-regions. Four different scenarios were considered: three according to different high voltage direct current (HVDC) transmission grid development levels (region, country, area-wide) and one integrated scenario that considers water desalination and industrial gas demand supplied by synthetic natural gas via power-to-gas (PtG). RE is not only able to cover 1813 TWh of estimated electricity demand of the area in 2030 but also able to generate the electricity needed to fulfil 3.9 billion m3 of water desalination and 640 TWhLHV of synthetic natural gas demand. Existing hydro dams can be used as virtual batteries for solar and wind electricity storage, diminishing the role of storage technologies. The results for total levelized cost of electricity (LCOE) are decreased from 62 €/MWh for a highly decentralized to 56 €/MWh for a highly centralized grid scenario (currency value of the year 2015). For the integrated scenario, the levelized cost of gas (LCOG) and the levelized cost of water (LCOW) are 95 €/MWhLHV and 0.91 €/m3, respectively. A reduction of 8% in total cost and 5% in electricity generation was achieved when integrating desalination and power-to-gas into the system.

  11. Hydro, wind and solar power as a base for a 100% renewable energy supply for South and Central America

    PubMed Central

    Barbosa, Larissa de Souza Noel Simas; Bogdanov, Dmitrii; Vainikka, Pasi; Breyer, Christian

    2017-01-01

    Power systems for South and Central America based on 100% renewable energy (RE) in the year 2030 were calculated for the first time using an hourly resolved energy model. The region was subdivided into 15 sub-regions. Four different scenarios were considered: three according to different high voltage direct current (HVDC) transmission grid development levels (region, country, area-wide) and one integrated scenario that considers water desalination and industrial gas demand supplied by synthetic natural gas via power-to-gas (PtG). RE is not only able to cover 1813 TWh of estimated electricity demand of the area in 2030 but also able to generate the electricity needed to fulfil 3.9 billion m3 of water desalination and 640 TWhLHV of synthetic natural gas demand. Existing hydro dams can be used as virtual batteries for solar and wind electricity storage, diminishing the role of storage technologies. The results for total levelized cost of electricity (LCOE) are decreased from 62 €/MWh for a highly decentralized to 56 €/MWh for a highly centralized grid scenario (currency value of the year 2015). For the integrated scenario, the levelized cost of gas (LCOG) and the levelized cost of water (LCOW) are 95 €/MWhLHV and 0.91 €/m3, respectively. A reduction of 8% in total cost and 5% in electricity generation was achieved when integrating desalination and power-to-gas into the system. PMID:28329023

  12. HydroViz: A web-based hydrologic observatory for enhancing hydrology and earth-science education

    NASA Astrophysics Data System (ADS)

    Habib, E. H.; Ma, Y.; Williams, D.

    2010-12-01

    The main goal of this study is to develop a virtual hydrologic observatory (HydroViz) that integrates hydrologic field observations with numerical simulations by taking advantage of advances in hydrologic field & remote sensing data, computer modeling, scientific visualization, and web resources and internet accessibility. The HydroViz system is a web-based teaching tool that can run on any web browsers. It leverages the strength of Google Earth to provide authentic and hands-on activities to improve learning. Evaluation of the HydroViz was performed in three engineering courses (a senior level course and two Introductory courses at two different universities). Evaluation results indicate that HydroViz provides an improvement over existing engineering hydrology curriculum. HydroViz was effective in facilitating students’ learning and understanding of hydrologic concepts & increasing related skills. HydroViz was much more effective for students in engineering hydrology classes rather than at the freshmen introduction to civil engineering class. We found that HydroViz has great potential for freshmen audience. Even though HydroViz was challenging to some freshmen, most of them still learned the key concepts and the tool increased the enthusiasm for half of the freshmen. The evaluation provided suggestions to create a simplified version of HydroViz for freshmen-level courses students. It identified concepts and tasks that might be too challenging or irrelevant to the freshmen and areas where we could provide more guidance in the tool. After the first round of evaluation, the development team has made significant improvements to HydroViz, which would further improve its effectiveness for next round of class applications which is planned for the Fall of 2010 to take place in 5 classes at 4 different institutions.

  13. HydroShare: An online, collaborative environment for the sharing of hydrologic data and models (Invited)

    NASA Astrophysics Data System (ADS)

    Tarboton, D. G.; Idaszak, R.; Horsburgh, J. S.; Ames, D.; Goodall, J. L.; Band, L. E.; Merwade, V.; Couch, A.; Arrigo, J.; Hooper, R. P.; Valentine, D. W.; Maidment, D. R.

    2013-12-01

    HydroShare is an online, collaborative system being developed for sharing hydrologic data and models. The goal of HydroShare is to enable scientists to easily discover and access data and models, retrieve them to their desktop or perform analyses in a distributed computing environment that may include grid, cloud or high performance computing model instances as necessary. Scientists may also publish outcomes (data, results or models) into HydroShare, using the system as a collaboration platform for sharing data, models and analyses. HydroShare is expanding the data sharing capability of the CUAHSI Hydrologic Information System by broadening the classes of data accommodated, creating new capability to share models and model components, and taking advantage of emerging social media functionality to enhance information about and collaboration around hydrologic data and models. One of the fundamental concepts in HydroShare is that of a Resource. All content is represented using a Resource Data Model that separates system and science metadata and has elements common to all resources as well as elements specific to the types of resources HydroShare will support. These will include different data types used in the hydrology community and models and workflows that require metadata on execution functionality. HydroShare will use the integrated Rule-Oriented Data System (iRODS) to manage federated data content and perform rule-based background actions on data and model resources, including parsing to generate metadata catalog information and the execution of models and workflows. This presentation will introduce the HydroShare functionality developed to date, describe key elements of the Resource Data Model and outline the roadmap for future development.

  14. Assessment of power step performances of variable speed pump-turbine unit by means of hydro-electrical system simulation

    NASA Astrophysics Data System (ADS)

    Béguin, A.; Nicolet, C.; Hell, J.; Moreira, C.

    2017-04-01

    The paper explores the improvement in ancillary services that variable speed technologies can provide for the case of an existing pumped storage power plant of 2x210 MVA which conversion from fixed speed to variable speed is investigated with a focus on the power step performances of the units. First two motor-generator variable speed technologies are introduced, namely the Doubly Fed Induction Machine (DFIM) and the Full Scale Frequency Converter (FSFC). Then a detailed numerical simulation model of the investigated power plant used to simulate power steps response and comprising the waterways, the pump-turbine unit, the motor-generator, the grid connection and the control systems is presented. Hydroelectric system time domain simulations are performed in order to determine the shortest response time achievable, taking into account the constraints from the maximum penstock pressure and from the rotational speed limits. It is shown that the maximum instantaneous power step response up and down depends on the hydro-mechanical characteristics of the pump-turbine unit and of the motor-generator speed limits. As a results, for the investigated test case, the FSFC solution offer the best power step response performances.

  15. [Avoidance of injuries to migrating fish by hydropower and water intake plants].

    PubMed

    Adam, B

    2004-03-01

    Every year numerous downstream migrating fish are lethally injured by hydro power plants and inlet works. Especially the katadromous Eel (Anguilla anguilla) and anadromous species like Atlantic Salmon (Salmo salar), which have to migrate downstream into the ocean for closing their life cycle, are highly endangered. Due to their specific migratory behavioral pattern, size and morphology conventional protection techniques, like screens do not properly keep them out from getting into the power plant intakes. Despite of the relevance of this problem for ecology and fishing, there are no protection and downstream migration facilities in Europe available, which can efficiently avoid the damage of all species and sizes of downstream migrating fish. Nevertheless according to protect the fish populations it's necessary to use consequently fish protection and downstream migration facilities, i.e. mechanical barrieres or alternative techniques like early warning systems as a prerequisit for a fish-friendly operational management of hydro power plants.

  16. 77 FR 47622 - TransCanada Hydro Northeast Inc.; FirstLight Power Resources; Notice of Environmental Site Review

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-09

    ....; FirstLight Power Resources; Notice of Environmental Site Review In anticipation of the filing of a... Project No. 1904), and two projects owned and operated by FirstLight Power Resources in Massachusetts.... Location: Vernon Station, 152 Governor Hunt Road, Vernon VT 05354. FirstLight's Projects FirstLight will...

  17. Short-Term Planning of Hybrid Power System

    NASA Astrophysics Data System (ADS)

    Knežević, Goran; Baus, Zoran; Nikolovski, Srete

    2016-07-01

    In this paper short-term planning algorithm for hybrid power system consist of different types of cascade hydropower plants (run-of-the river, pumped storage, conventional), thermal power plants (coal-fired power plants, combined cycle gas-fired power plants) and wind farms is presented. The optimization process provides a joint bid of the hybrid system, and thus making the operation schedule of hydro and thermal power plants, the operation condition of pumped-storage hydropower plants with the aim of maximizing profits on day ahead market, according to expected hourly electricity prices, the expected local water inflow in certain hydropower plants, and the expected production of electrical energy from the wind farm, taking into account previously contracted bilateral agreement for electricity generation. Optimization process is formulated as hourly-discretized mixed integer linear optimization problem. Optimization model is applied on the case study in order to show general features of the developed model.

  18. Minimum flow unit installation at the South Edwards Hydro Plant

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Bernhardt, P.; Bates, D.

    1995-12-31

    Niagara Mohawk Power Corp. owns and operates the 3.3 MW South Edwards Hydro Plant in Northern New York. The FERC license for this plant requires a minimum flow release in the bypass region of the river. NMPC submitted a license amendment to the FERC to permit the addition of a minimum flow unit to take advantage of this flow. The amendment was accepted, permitting the installation of the 236 kw, 60 cfs unit to proceed. The unit was installed and commissioned in 1994.

  19. The HydroServer Platform for Sharing Hydrologic Data

    NASA Astrophysics Data System (ADS)

    Tarboton, D. G.; Horsburgh, J. S.; Schreuders, K.; Maidment, D. R.; Zaslavsky, I.; Valentine, D. W.

    2010-12-01

    The CUAHSI Hydrologic Information System (HIS) is an internet based system that supports sharing of hydrologic data. HIS consists of databases connected using the Internet through Web services, as well as software for data discovery, access, and publication. The HIS system architecture is comprised of servers for publishing and sharing data, a centralized catalog to support cross server data discovery and a desktop client to access and analyze data. This paper focuses on HydroServer, the component developed for sharing and publishing space-time hydrologic datasets. A HydroServer is a computer server that contains a collection of databases, web services, tools, and software applications that allow data producers to store, publish, and manage the data from an experimental watershed or project site. HydroServer is designed to permit publication of data as part of a distributed national/international system, while still locally managing access to the data. We describe the HydroServer architecture and software stack, including tools for managing and publishing time series data for fixed point monitoring sites as well as spatially distributed, GIS datasets that describe a particular study area, watershed, or region. HydroServer adopts a standards based approach to data publication, relying on accepted and emerging standards for data storage and transfer. CUAHSI developed HydroServer code is free with community code development managed through the codeplex open source code repository and development system. There is some reliance on widely used commercial software for general purpose and standard data publication capability. The sharing of data in a common format is one way to stimulate interdisciplinary research and collaboration. It is anticipated that the growing, distributed network of HydroServers will facilitate cross-site comparisons and large scale studies that synthesize information from diverse settings, making the network as a whole greater than the sum of its parts in advancing hydrologic research. Details of the CUAHSI HIS can be found at http://his.cuahsi.org, and HydroServer codeplex site http://hydroserver.codeplex.com.

  20. Integration of Variable Speed Pumped Hydro Storage in Automatic Generation Control Systems

    NASA Astrophysics Data System (ADS)

    Fulgêncio, N.; Moreira, C.; Silva, B.

    2017-04-01

    Pumped storage power (PSP) plants are expected to be an important player in modern electrical power systems when dealing with increasing shares of new renewable energies (NRE) such as solar or wind power. The massive penetration of NRE and consequent replacement of conventional synchronous units will significantly affect the controllability of the system. In order to evaluate the capability of variable speed PSP plants participation in the frequency restoration reserve (FRR) provision, taking into account the expected performance in terms of improved ramp response capability, a comparison with conventional hydro units is presented. In order to address this issue, a three area test network was considered, as well as the corresponding automatic generation control (AGC) systems, being responsible for re-dispatching the generation units to re-establish power interchange between areas as well as the system nominal frequency. The main issue under analysis in this paper is related to the benefits of the fast response of variable speed PSP with respect to its capability of providing fast power balancing in a control area.

  1. Collaborative Sharing of Multidimensional Space-time Data Using HydroShare

    NASA Astrophysics Data System (ADS)

    Gan, T.; Tarboton, D. G.; Horsburgh, J. S.; Dash, P. K.; Idaszak, R.; Yi, H.; Blanton, B.

    2015-12-01

    HydroShare is a collaborative environment being developed for sharing hydrological data and models. It includes capability to upload data in many formats as resources that can be shared. The HydroShare data model for resources uses a specific format for the representation of each type of data and specifies metadata common to all resource types as well as metadata unique to specific resource types. The Network Common Data Form (NetCDF) was chosen as the format for multidimensional space-time data in HydroShare. NetCDF is widely used in hydrological and other geoscience modeling because it contains self-describing metadata and supports the creation of array-oriented datasets that may include three spatial dimensions, a time dimension and other user defined dimensions. For example, NetCDF may be used to represent precipitation or surface air temperature fields that have two dimensions in space and one dimension in time. This presentation will illustrate how NetCDF files are used in HydroShare. When a NetCDF file is loaded into HydroShare, header information is extracted using the "ncdump" utility. Python functions developed for the Django web framework on which HydroShare is based, extract science metadata present in the NetCDF file, saving the user from having to enter it. Where the file follows Climate Forecast (CF) convention and Attribute Convention for Dataset Discovery (ACDD) standards, metadata is thus automatically populated. Users also have the ability to add metadata to the resource that may not have been present in the original NetCDF file. HydroShare's metadata editing functionality then writes this science metadata back into the NetCDF file to maintain consistency between the science metadata in HydroShare and the metadata in the NetCDF file. This further helps researchers easily add metadata information following the CF and ACDD conventions. Additional data inspection and subsetting functions were developed, taking advantage of Python and command line libraries for working with NetCDF files. We describe the design and implementation of these features and illustrate how NetCDF files from a modeling application may be curated in HydroShare and thus enhance reproducibility of the associated research. We also discuss future development planned for multidimensional space-time data in HydroShare.

  2. Evaluation of snow and frozen soil parameterization in a cryosphere land surface modeling framework in the Tibetan Plateau

    NASA Astrophysics Data System (ADS)

    Zhou, J.

    2017-12-01

    Snow and frozen soil are important components in the Tibetan Plateau, and influence the water cycle and energy balances through snowpack accumulation and melt and soil freeze-thaw. In this study, a new cryosphere land surface model (LSM) with coupled snow and frozen soil parameterization was developed based on a hydrologically improved LSM (HydroSiB2). First, an energy-balance-based three-layer snow model was incorporated into HydroSiB2 (hereafter HydroSiB2-S) to provide an improved description of the internal processes of the snow pack. Second, a universal and simplified soil model was coupled with HydroSiB2-S to depict soil water freezing and thawing (hereafter HydroSiB2-SF). In order to avoid the instability caused by the uncertainty in estimating water phase changes, enthalpy was adopted as a prognostic variable instead of snow/soil temperature in the energy balance equation of the snow/frozen soil module. The newly developed models were then carefully evaluated at two typical sites of the Tibetan Plateau (TP) (one snow covered and the other snow free, both with underlying frozen soil). At the snow-covered site in northeastern TP (DY), HydroSiB2-SF demonstrated significant improvements over HydroSiB2-F (same as HydroSiB2-SF but using the original single-layer snow module of HydroSiB2), showing the importance of snow internal processes in three-layer snow parameterization. At the snow-free site in southwestern TP (Ngari), HydroSiB2-SF reasonably simulated soil water phase changes while HydroSiB2-S did not, indicating the crucial role of frozen soil parameterization in depicting the soil thermal and water dynamics. Finally, HydroSiB2-SF proved to be capable of simulating upward moisture fluxes toward the freezing front from the underlying soil layers in winter.

  3. 7. Photocopied August 1971 from Photo 13729, Granite Station Special ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    7. Photocopied August 1971 from Photo 13729, Granite Station Special Folder, Engineering Department, Utah Power and Light Co., Salt Lake City, Utah. GRANITE HYDRO-ELECTRIC PLANT (1500KW) STATION. PENSTOCK AND SPILWAY, NOVEMBER 1914. - Utah Power Company, Granite Hydroelectric Plant, Holladay, Salt Lake County, UT

  4. 8. Photocopied August 1971 from Photo 11479, Granite Station Special ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    8. Photocopied August 1971 from Photo 11479, Granite Station Special Folder, Engineering Department, Utah Power and Light Co., Salt Lake City, Utah. GRANITE HYDRO-ELECTRIC PLANT (1500 KW) STATION. PENSTOCK AND SPILWAY, NOVEMBER 1914. - Utah Power Company, Granite Hydroelectric Plant, Holladay, Salt Lake County, UT

  5. 7. Photocopied August 1971 from Photo 11480, Stairs Station Special ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    7. Photocopied August 1971 from Photo 11480, Stairs Station Special Folder, Engineering Department, Utah Power and Light Co., Salt Lake City, Utah. STAIRS HYDRO-ELECTRIC PLANT (1600 KW) STATION AND PENSTOCK, NOVEMBER 1914. - Utah Power & Light Company, Stairs Hydroelectric Station, Holladay, Salt Lake County, UT

  6. Energy for the 21st Century World Economy: Problems and Opportunities

    NASA Astrophysics Data System (ADS)

    Bauer, Wolfgang

    2012-10-01

    Humans currently use approximately 16 TW of power. More than 80% of this power is generated from fossil fuels, which is unsustainable. But there are alternatives (solar, wind, hydro, biomass, geothermal, and nuclear). In this presentation I will review their costs and benefits.

  7. Pressure retarded osmosis as a controlling system for traditional renewables

    NASA Astrophysics Data System (ADS)

    Carravetta, Armando; Fecarotta, Oreste; La Rocca, Michele; Martino, Riccardo

    2015-04-01

    Pressure retarded osmosis (PRO) is a viable but still not diffused form of renewable energy (see Maisonneuve et al., 2015 for a recent literature review). In PRO, water from a low salinity feed solution permeates through a membrane into a pressurized, high salinity draw solution, giving rise to a positive pressure drop; then energy is obtained by depressurizing the permeate through a hydro-turbine and brackish water is discharged. Many technological, environmental and economical aspects are obstacles in the diffusion of PRO, like the vulnerability of the membranes to fouling, the impact of the brackish water on the local marine environment, the high cost of membranes, etc. We are interested in the use of PRO as a combined form of energy with other renewable energy source like solar, wind or mini hydro in water supply networks (WSN). For the wide diffusion of renewables one of the major concerns of commercial power companies is to obtain very stable form of energy to comply with prescriptions of electricity grid operators and with the instant energy demand curve. Renewables are generally very variable form of energy, for the influence of climatic conditions on available power, and of the fluctuation in water demand in WSN. PRO is a very flexible technology where with appropriate turbines and control system power can be varied continuously to compensate for variation of other source of energy. Therefore, PRO is suitable to be used as a balancing system for commercial power system. We will present a simulation of the performance of a PRO used in combination with three different renewables. In the first two scenarios PRO compensate the difference between energy demand and energy production of a solar power plant and hydro power plant in a WSN. In the third scenario PRO is used to compensate daily variation of energy production in a wind power plant. Standard curves of energy production and energy demand for southern Italy are used. In order to control PRO production an appropriate hydro turbine system is necessary. Therefore, pumps as turbine (PAT) are used in alternative to a classical hydraulic turbine (Carravetta et al., 2013). PAT can be easily regulated by hydraulic system, of by an inverter, granting the necessary flexibility of energy production with a sensible reduction of machinery cost. Maisonneuve J, Pillay P, Laflamme C.B. Pressure-retarded osmotic power system model considering non-ideal effects. Renewable Energy. 2015; 75(3): 416-424. Carravetta A, Del Giudice G, Fecarotta O, Ramos HM. Pump as Turbine (PAT) Design in Water Distribution Network by System Effectiveness. Water. 2013; 5(3):1211-1225.

  8. Novel electric power-driven hydrodynamic injection system for gene delivery: safety and efficacy of human factor IX delivery in rats.

    PubMed

    Yokoo, T; Kamimura, K; Suda, T; Kanefuji, T; Oda, M; Zhang, G; Liu, D; Aoyagi, Y

    2013-08-01

    The development of a safe and reproducible gene delivery system is an essential step toward the clinical application of the hydrodynamic gene delivery (HGD) method. For this purpose, we have developed a novel electric power-driven injection system called the HydroJector-EM, which can replicate various time-pressure curves preloaded into the computer program before injection. The assessment of the reproducibility and safety of gene delivery system in vitro and in vivo demonstrated the precise replication of intravascular time-pressure curves and the reproducibility of gene delivery efficiency. The highest level of luciferase expression (272 pg luciferase per mg of proteins) was achieved safely using the time-pressure curve, which reaches 30 mm Hg in 10 s among various curves tested. Using this curve, the sustained expression of a therapeutic level of human factor IX protein (>500 ng ml(-1)) was maintained for 2 months after the HGD of the pBS-HCRHP-FIXIA plasmid. Other than a transient increase in liver enzymes that recovered in a few days, no adverse events were seen in rats. These results confirm the effectiveness of the HydroJector-EM for reproducible gene delivery and demonstrate that long-term therapeutic gene expression can be achieved by automatic computer-controlled hydrodynamic injection that can be performed by anyone.

  9. Antioxidant potential of hydro-methanolic extract of Prasium majus L: an in vitro study.

    PubMed

    Chaouche, T M; Haddouchi, F; Ksouri, R; Medini, F; El-Haci, I A; Boucherit, Z; Sekkal, F Z; Atik-Bekara, F

    2013-11-01

    Phytochemicals are extensively found at different levels in many medicinal plants. To investigate the phenolic compound content and in vitro antioxidant activity of hydro-methanolic extract from Prasium majus L. (Lamiaceae). The present investigation comprises, estimation of total polyphenol, flavonoid, tannin, in vitro antioxidant assays such as total antioxidant capacity, DPPH, ABTS, beta-carotene and ferric reducing power. P. majus exhibited 64.25 mg GAE g(-1) extract of polyphenol phenol content and better scavenging activity of DPPH (IC50 = 7.95 microg mL(-1)), ABTS*+ (IC50 = 373.78 microg mL(-1)) and beta-carotene (IC50 = 122.56 microg mL(-1)). Our results clearly demonstrated that hydro-methanolic extract P. majus has antioxidant capacity. Therefore is a valuable source of natural antioxidants.

  10. The HydroShare Collaborative Repository for the Hydrology Community

    NASA Astrophysics Data System (ADS)

    Tarboton, D. G.; Idaszak, R.; Horsburgh, J. S.; Ames, D. P.; Goodall, J. L.; Couch, A.; Hooper, R. P.; Dash, P. K.; Stealey, M.; Yi, H.; Bandaragoda, C.; Castronova, A. M.

    2017-12-01

    HydroShare is an online, collaboration system for sharing of hydrologic data, analytical tools, and models. It supports the sharing of, and collaboration around, "resources" which are defined by standardized content types for data formats and models commonly used in hydrology. With HydroShare you can: Share your data and models with colleagues; Manage who has access to the content that you share; Share, access, visualize and manipulate a broad set of hydrologic data types and models; Use the web services application programming interface (API) to program automated and client access; Publish data and models and obtain a citable digital object identifier (DOI); Aggregate your resources into collections; Discover and access data and models published by others; Use web apps to visualize, analyze and run models on data in HydroShare. This presentation will describe the functionality and architecture of HydroShare highlighting our approach to making this system easy to use and serving the needs of the hydrology community represented by the Consortium of Universities for the Advancement of Hydrologic Sciences, Inc. (CUAHSI). Metadata for uploaded files is harvested automatically or captured using easy to use web user interfaces. Users are encouraged to add or create resources in HydroShare early in the data life cycle. To encourage this we allow users to share and collaborate on HydroShare resources privately among individual users or groups, entering metadata while doing the work. HydroShare also provides enhanced functionality for users through web apps that provide tools and computational capability for actions on resources. HydroShare's architecture broadly is comprised of: (1) resource storage, (2) resource exploration website, and (3) web apps for actions on resources. System components are loosely coupled and interact through APIs, which enhances robustness, as components can be upgraded and advanced relatively independently. The full power of this paradigm is the extensibility it supports. Web apps are hosted on separate servers, which may be 3rd party servers. They are registered in HydroShare using a web app resource that configures the connectivity for them to be discovered and launched directly from resource types they are associated with.

  11. Complementarity among climate related energy sources: Sensitivity study to climate characteristics across Europe

    NASA Astrophysics Data System (ADS)

    Francois, Baptiste; Hingray, Benoit; Creutin, Jean-Dominique; Raynaud, Damien; Borga, Marco; Vautard, Robert

    2015-04-01

    Climate related energy sources like solar-power, wind-power and hydro-power are important contributors to the transitions to a low-carbon economy. Past studies, mainly based on solar and wind powers, showed that the power from such energy sources fluctuates in time and space following their driving climatic variables. However, when combining different energy sources together, their intermittent feature is smoothed, resulting to lower time variability of the produced power and to lower storage capacity required for balancing. In this study, we consider solar, wind and hydro energy sources in a 100% renewable Europe using a set of 12 regions following two climate transects, the first one going from the Northern regions (Norway, Finland) to the Southern ones (Greece, Andalucía, Tunisia) and the second one going from the oceanic climate (West of France, Galicia) to the continental one (Romania, Belorussia). For each of those regions, we combine wind and solar irradiance data from the Weather Research and Forecasting Model (Vautard et al., 2014), temperature data from the European Climate Assessment & Dataset (Haylock et al., 2008) and runoff from the Global Runoff Data Center (GRDC, 1999) for estimating solar-power, wind-power, run-of-the-river hydro-power and the electricity demand over a time period of 30 years. The use of this set of 12 regions across Europe allows integrating knowledge about time and space variability for each different energy sources. We then assess the optimal share of each energy sources, aiming to decrease the time variability of the regional energy balance at different time scales as well as the energy storage required for balancing within each region. We also evaluate how energy transport among regions contributes for smoothing out both the energy balance and the storage requirement. The strengths of this study are i) to handle with run-of-the-river hydro power in addition to wind and solar energy sources and ii) to carry out this analysis over a long time period while past studies, to our knowledge, have used less than 10 year time period. References: Vautard, R., Thais, F., Tobin, I., Bréon, F.-M., de Lavergne, J.-G.D., Colette, A., Yiou, P., and Ruti, P.M. (2014). Regional climate model simulations indicate limited climatic impacts by operational and planned European wind farms. Nat. Commun. 5, 3196. Haylock, M.R., Hofstra, N., Tank, A.M.G.K., Klok, E.J., Jones, P.D., New, M., 2008. A European daily high-resolution gridded data set of surface temperature and precipitation for 1950-2006. J. Geophys. Res.-Atmos. 113. doi:10.1029/2008JD010201 GRDC (Global Runoff Data Center), 1999. Long-term mean monthly discharges of selected GRDC stations, Global Runoff Data Centre, Koblenz, Germany.

  12. Tech notes: Ongoing or planned hydro research, results of recent studies, and reviews of new books, publications, and software

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    NONE

    Ongoing or planned hydro research, results of recent studies, and reviews of new books, publications, and software. Items covered this month include: (1) a recommendation that dam designers give more consideration to earthquake resistance, (2) the development of a new wave rotor design, (3) the development of a small hydro database in China, and (4) an ICOLD bulletin on the optimization of constuction costs.

  13. hydroPSO: A Versatile Particle Swarm Optimisation R Package for Calibration of Environmental Models

    NASA Astrophysics Data System (ADS)

    Zambrano-Bigiarini, M.; Rojas, R.

    2012-04-01

    Particle Swarm Optimisation (PSO) is a recent and powerful population-based stochastic optimisation technique inspired by social behaviour of bird flocking, which shares similarities with other evolutionary techniques such as Genetic Algorithms (GA). In PSO, however, each individual of the population, known as particle in PSO terminology, adjusts its flying trajectory on the multi-dimensional search-space according to its own experience (best-known personal position) and the one of its neighbours in the swarm (best-known local position). PSO has recently received a surge of attention given its flexibility, ease of programming, low memory and CPU requirements, and efficiency. Despite these advantages, PSO may still get trapped into sub-optimal solutions, suffer from swarm explosion or premature convergence. Thus, the development of enhancements to the "canonical" PSO is an active area of research. To date, several modifications to the canonical PSO have been proposed in the literature, resulting into a large and dispersed collection of codes and algorithms which might well be used for similar if not identical purposes. In this work we present hydroPSO, a platform-independent R package implementing several enhancements to the canonical PSO that we consider of utmost importance to bring this technique to the attention of a broader community of scientists and practitioners. hydroPSO is model-independent, allowing the user to interface any model code with the calibration engine without having to invest considerable effort in customizing PSO to a new calibration problem. Some of the controlling options to fine-tune hydroPSO are: four alternative topologies, several types of inertia weight, time-variant acceleration coefficients, time-variant maximum velocity, regrouping of particles when premature convergence is detected, different types of boundary conditions and many others. Additionally, hydroPSO implements recent PSO variants such as: Improved Particle Swarm Optimisation (IPSO), Fully Informed Particle Swarm (FIPS), and weighted FIPS (wFIPS). Finally, an advanced sensitivity analysis using the Latin Hypercube One-At-a-Time (LH-OAT) method and user-friendly plotting summaries facilitate the interpretation and assessment of the calibration/optimisation results. We validate hydroPSO against the standard PSO algorithm (SPSO-2007) employing five test functions commonly used to assess the performance of optimisation algorithms. Additionally, we illustrate how the performance of the optimization/calibration engine is boosted by using several of the fine-tune options included in hydroPSO. Finally, we show how to interface SWAT-2005 with hydroPSO to calibrate a semi-distributed hydrological model for the Ega River basin in Spain, and how to interface MODFLOW-2000 and hydroPSO to calibrate a groundwater flow model for the regional aquifer of the Pampa del Tamarugal in Chile. We limit the applications of hydroPSO to study cases dealing with surface water and groundwater models as these two are the authors' areas of expertise. However, based on the flexibility of hydroPSO we believe this package can be implemented to any model code requiring some form of parameter estimation.

  14. A new methodology for hydro-abrasive erosion tests simulating penstock erosive flow

    NASA Astrophysics Data System (ADS)

    Aumelas, V.; Maj, G.; Le Calvé, P.; Smith, M.; Gambiez, B.; Mourrat, X.

    2016-11-01

    Hydro-abrasive resistance is an important property requirement for hydroelectric power plant penstock coating systems used by EDF. The selection of durable coating systems requires an experimental characterization of coating performance. This can be achieved by performing accelerated and representative laboratory tests. In case of severe erosion induced by a penstock flow, there is no suitable method or standard representative of real erosive flow conditions. The presented study aims at developing a new methodology and an associated laboratory experimental device. The objective of the laboratory apparatus is to subject coated test specimens to wear conditions similar to the ones generated at the penstock lower generatrix in actual flow conditions. Thirteen preselected coating solutions were first been tested during a 45 hours erosion test. A ranking of the thirteen coating solutions was then determined after characterisation. To complete this first evaluation and to determine the wear kinetic of the four best coating solutions, additional erosion tests were conducted with a longer duration of 216 hours. A comparison of this new method with standardized tests and with real service operating flow conditions is also discussed. To complete the final ranking based on hydro-abrasive erosion tests, some trial tests were carried out on penstock samples to check the application method of selected coating systems. The paper gives some perspectives related to erosion test methodologies for materials and coating solutions for hydraulic applications. The developed test method can also be applied in other fields.

  15. Hydrology of Bishop Creek, California: An Isotopic Analysis

    Treesearch

    Michael L. Space; John W. Hess; Stanley D. Smith

    1989-01-01

    Five power generation plants along an eleven kilometer stretch divert Bishop Creek water for hydro-electric power. Stream diversion may be adversely affecting the riparian vegetation. Stable isotopic analysis is employed to determine surface water/ground-water interactions along the creek. surface water originates primarily from three headwater lakes. Discharge into...

  16. Impact of landuse/land cover change on run-off in the catchment of a hydro power project

    NASA Astrophysics Data System (ADS)

    Khare, Deepak; Patra, Diptendu; Mondal, Arun; Kundu, Sananda

    2017-05-01

    The landuse/land cover change and rainfall have a significant influence on the hydrological response of the river basins. The run-off characteristics are changing naturally due to reduction of initial abstraction that increases the run-off volume. Therefore, it is necessary to quantify the changes in the run-off characteristics of a catchment under the influence of changed landuse/land cover. Soil conservation service model has been used in the present study to analyse the impact of various landuse/land cover (past, present and future time period) change in the run-off characteristics of a part of Narmada basin at the gauge discharge site of Mandaleswar in Madhya Pradesh, India. Calculated run-off has been compared with the observed run-off data for the study. The landuse/land cover maps of 1990, 2000 and 2009 have been prepared by digital classification method with proper accuracy using satellite imageries. The impact of the run-off change on hydro power potential has been assessed in the study along with the estimation of the future changes in hydro power potential. Five types of conditions (+10, +5 %, average, -5, -10 % of average rainfall) have been applied with 90 and 75 % dependability status. The generated energy will be less in 90 % dependable flow in respect to the 75 % dependable flow. This work will be helpful for future planning related to establishment of hydropower setup.

  17. Hydro-power production and fish habitat suitability: Assessing impact and effectiveness of ecological flows at regional scale

    NASA Astrophysics Data System (ADS)

    Ceola, Serena; Pugliese, Alessio; Ventura, Matteo; Galeati, Giorgio; Montanari, Alberto; Castellarin, Attilio

    2018-06-01

    Anthropogenic activities along streams and rivers may be of major concern for fluvial ecosystems, e.g. abstraction and impoundment of surface water resources may profoundly alter natural streamflow regimes. An established approach aimed at preserving the behavior and distribution of fluvial species relies on the definition of ecological flows (e-flows) downstream of dams and diversion structures. E-flow prescriptions are usually set by basin authorities at regional scale, often without a proper assessment of their impact and effectiveness. On the contrary, we argue that e-flows should be identified on the basis of (i) regional and (ii) quantitative assessments. We focus on central Italy and evaluate the effects on habitat suitability of two near-threatened fish species (i.e. Barbel and Chub) and an existing hydro-power network when shifting from the current time-invariant e-flow policy to a tighter and seasonally-varying soon-to-be-enforced one. Our example clearly shows that: (a) quantitative regional scale assessments are viable even when streamflow observations are entirely missing at study sites; (b) aprioristic e-flows policies may impose releases that exceed natural streamflows for significantly long time intervals (weeks, or months); (c) unduly tightening e-flow policies may heavily impact regional hydro-power productivity (15% and 42% losses on annual and seasonal basis, respectively), yet resulting in either marginal or negligible improvements of fluvial ecosystem.

  18. Trash Diverter Orientation Angle Optimization at Run-Off River Type Hydro-power Plant using CFD

    NASA Astrophysics Data System (ADS)

    Munisamy, Kannan M.; Kamal, Ahmad; Shuaib, Norshah Hafeez; Yusoff, Mohd. Zamri; Hasini, Hasril; Rashid, Azri Zainol; Thangaraju, Savithry K.; Hamid, Hazha

    2010-06-01

    Tenom Pangi Hydro Power Station in Tenom, Sabah is suffering from poor river quality with a lot of suspended trashes. This problem necessitates the need for a trash diverter to divert the trash away from the intake region. Previously, a trash diverter (called Trash Diverter I) was installed at the site but managed to survived for a short period of time due to an impact with huge log as a results of a heavy flood. In the current project, a second trash diverter structure is designed (called Trash Diverter II) with improved features compared to Trash Diverter I. The Computational Fluid Dynamics (CFD) analysis is done to evaluate the river flow interaction onto the trash diverter from the fluid flow point of view, Computational Fluids Dynamics is a numerical approach to solve fluid flow profile for different inlet conditions. In this work, the river geometry is modeled using commercial CFD code, FLUENT®. The computational model consists of Reynolds Averaged Navier-Stokes (RANS) equations coupled with other related models using the properties of the fluids under investigation. The model is validated with site-measurements done at Tenom Pangi Hydro Power Station. Different operating condition of river flow rate and weir opening is also considered. The optimum angle is determined in this simulation to further use the data for 3D simulation and structural analysis.

  19. 78 FR 57375 - Toutant Hydro Power, Inc.; Energy System, LLC.; Notice of Application for Transfer of License...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-18

    ... viewed or printed on the eLibrary link of Commission's Web site at http://www.ferc.gov/docs-filing... Power, Inc.; Energy System, LLC.; Notice of Application for Transfer of License, and Soliciting Comments... System, LLC (transferee) filed an application for transfer of license for the M.S.C. Power Project, FERC...

  20. Commercial Impact and Optimum Capacity Determination of Pumped Storage Hydro Plant for a Practical Power System

    NASA Astrophysics Data System (ADS)

    Latha, P. G.; Anand, S. R.; Imthias, Ahamed T. P.; Sreejith, P. S., Dr.

    2013-06-01

    This paper attempts to study the commercial impact of pumped storage hydro plant on the operation of a stressed power system. The paper further attempts to compute the optimum capacity of the pumped storage scheme that can be provided on commercial basis for a practical power system. Unlike the analysis of commercial aspects of pumped storage scheme attempted in several papers, this paper is presented from the point of view of power system management of a practical system considering the impact of the scheme on the economic operation of the system. A realistic case study is presented as the many factors that influence the pumped storage operation vary widely from one system to another. The suitability of pumped storage for the particular generation mix of a system is well explored in the paper. To substantiate the economic impact of pumped storage on the system, the problem is formulated as a short-term hydrothermal scheduling problem involving power purchase which optimizes the quantum of power to be scheduled and the duration of operation. The optimization model is formulated using an algebraic modeling language, AMPL, which is then solved using the advanced MILP solver CPLEX.

  1. Development of an inflow controlled environmental flow regime for a Norwegian river

    NASA Astrophysics Data System (ADS)

    Alfredsen, Knut; Harby, Atle; Linnansaari, Tommi; Ugedal, Ola

    2010-05-01

    For most regulated rivers in Norway the common environmental flow regime is static and shows very little variation over the year. Recent research indicate that flow regimes that follow the natural inflow variation can meet the ecological and social demands for water in a better way. The implementation of a variable environmental flow regime provides many challenges both related to defining flow for various species and user groups in the river, but also due to practical implementation, legislation and control. A inflow controlled flow regime is developed for a Norwegian river regulated for hydro power as a pilot study. The regime should meet ecological demands from Atlantic salmon and brown trout, recreational use of water and visual impression of the river. This should be achieved preferably without altering the energy production in the hydro power system. The flow regime is developed for wet, dry and normal discharge conditions based on unregulated inflow to the catchment. The development of the seasonal flow requirements for various targets identified is done using a modification of the Building Block Method. Several options are tested regarding the integration of the flow regime into the operational strategy of the hydropower plant, both using real time prognosis of inflow and combinations with historical data. An important topic in selecting the release strategy is how it meets current Norwegian legislation and how well future documentation and environmental control can be carried out. An evaluation protocol is also proposed for the flow regime to test if the ecological targets are met.

  2. The influence of the North-Atlantic Oscillation on Variable Renewable Energy penetration rate in Europe

    NASA Astrophysics Data System (ADS)

    Francois, Baptiste

    2016-04-01

    The on-going transition to low-carbon economy promotes the development of Variable Renewable Energies (VRE) such as wind-power, solar-power and hydro-power. The European Climate Foundation now typically dates for 2050 optimistic scenarios with close to 100 % renewable energy in Europe. When considering 100 % renewable scenarios, backup generation is needed for stabilizing the network when variable renewable energy sources such as wind, solar or run-of-the river hydropower are not sufficient for supplying the load. Several studies show that backup generation needs are reduced by dissipating power densities either in space through grids and time through storage. To our knowledge, most of these published studies were carried out using field measurements collected at meteorological and hydrological stations and over relatively short time period (less than 10 years). By using short period of times, such studies somehow disregarded the space and temporal variability of VRE power generation that could be induced by larger-scale climate variability patterns. This study investigates the influence of the North Atlantic Oscillation (NAO) on the VRE penetration for a set of 11 regions in Europe and Tunisia, and over 1980-2012 time period. These regions are located along two climate transects, the first one going from the Northern regions (Norway, Finland) to the Southern ones (Greece, Andalucía, Tunisia) and the second one going from the oceanic climate (West of France, Galicia) to the continental one (Romania, Belorussia). For each of those regions, we combine data from the Weather Research and Forecasting Model (wind speed, solar radiation; Vautard et al., 2014) and the European Climate Assessment & Dataset (temperature, precipitation; Haylock et al,. 2008) for estimating solar-power, wind-power, run-of-the-river hydro-power and the electricity demand over a time period of 33 years. For each region, we analyze seasonal differences in penetration rates of wind-, solar- and hydro-power and between positive and negative phases of the NAO index. We then discuss about opportunities of combining different VRE within the same region and among neighbor regions for limiting backup generation needs during both positive and negative NAO phases. References: Vautard, R., Thais, F., Tobin, I., Bréon, F.-M., de Lavergne, J.-G.D., Colette, A., Yiou, P., and Ruti, P.M. (2014).Regional climate model simulations indicate limited climatic impacts by operational and planned European wind farms. Nat. Commun. 5, 3196. Haylock, M.R., Hofstra, N., Tank, A.M.G.K., Klok, E.J., Jones, P.D., New, M., 2008. A European daily high-resolution gridded data set of surface temperature and precipitation for 1950-2006. J. Geophys. Res.-Atmos. 113. doi:10.1029/2008JD010201

  3. DOE Office of Scientific and Technical Information (OSTI.GOV)

    Not Available

    One of the early bases that must be covered in the development of a potential small hydro site is a visit to the bank. According to Jacques P. Fiechter, a Senior Vice President with BayBank Boston, small-scale hydro financing, when properly done, is a particularly productive use of a bank's funds. Mr. Fiechter does not consider himself a hydro-expert, but with ten years of experience as a lending generalist and recent experience with several hydro projects, he describes what he likes to see in any loan application coming in.

  4. Vertical-axis wind turbine development in Canada

    NASA Astrophysics Data System (ADS)

    Templin, R. J.; Rangi, R. S.

    1983-12-01

    Recent Canadian progress in the development of the curved-blade Darrieus vertical-axis wind turbine (VAWT) is described. Cooperation between government, industry and power utilities in the conduct of field trials, over several years, has demonstrated improved performance and reliability of grid-coupled turbines of this type. The rated power of the VAWTs currently under test ranges from 30 kW, in a wind/diesel powerplant, to 230 kW, in an installation on an island in the Gulf of St. Lawrence. Progress has also been made in understanding the basic aerodynamic behavior of the VAWT and theoretical methods for performance and load prediction have correspondingly improved. A brief description is given of 'Project EOLE', a cooperative project between the federal government and the utility Hydro-Quebec to develop and test, during the next two to three years, a 4 MW VAWT prototype, which will be coupled to the power grid at a location on the south shore of the St. Lawrence River.

  5. HydroViz: design and evaluation of a Web-based tool for improving hydrology education

    NASA Astrophysics Data System (ADS)

    Habib, E.; Ma, Y.; Williams, D.; Sharif, H. O.; Hossain, F.

    2012-10-01

    HydroViz is a Web-based, student-centered, educational tool designed to support active learning in the field of Engineering Hydrology. The design of HydroViz is guided by a learning model that is based on learning with data and simulations, using real-world natural hydrologic systems to convey theoretical concepts, and using Web-based technologies for dissemination of the hydrologic education developments. This model, while being used in a hydrologic education context, can be adapted in other engineering educational settings. HydroViz leverages the free Google Earth resources to enable presentation of geospatial data layers and embed them in web pages that have the same look and feel of Google Earth. These design features significantly facilitate the dissemination and adoption of HydroViz by any interested educational institutions regardless of their access to data or computer models. To facilitate classroom usage, HydroViz is populated with a set of course modules that can be used incrementally within different stages of an engineering hydrology curriculum. A pilot evaluation study was conducted to determine the effectiveness of the HydroViz tool in delivering its educational content, to examine the buy-in of the program by faculty and students, and to identify specific project components that need to be further pursued and improved. A total of 182 students from seven freshmen and senior-level undergraduate classes in three universities participated in the study. HydroViz was effective in facilitating students' learning and understanding of hydrologic concepts and increasing related skills. Students had positive perceptions of various features of HydroViz and they believe that HydroViz fits well in the curriculum. In general, HydroViz tend to be more effective with students in senior-level classes than students in freshmen classes. Lessons gained from this pilot study provide guidance for future adaptation and expansion studies to scale-up the application and utility of HydroViz and other similar systems into various hydrology and water-resource engineering curriculum settings. The paper presents a set of design principles that contribute to the development of other active hydrology educational systems.

  6. Hydro-economic modelling in mining catchments

    NASA Astrophysics Data System (ADS)

    Ossa Moreno, J. S.; McIntyre, N.; Rivera, D.; Smart, J. C. R.

    2017-12-01

    Hydro-economic models are gaining momentum because of their capacity to model both the physical processes related to water supply, and socio-economic factors determining water demand. This is particularly valuable in the midst of the large uncertainty upon future climate conditions and social trends. Agriculture, urban uses and environmental flows have received a lot of attention from researchers, as these tend to be the main consumers of water in most catchments. Mine water demand, although very important in several small and medium-sized catchments worldwide, has received less attention and only few models have attempted to reproduce its dynamics with other users. This paper describes an on-going project that addresses this gap, by developing a hydro-economic model in the upper Aconcagua River in Chile. This is a mountain catchment with large scale mining and hydro-power users at high altitudes, and irrigation areas in a downstream valley. Relevant obstacles to the model included the lack of input climate data, which is a common feature in several mining areas, the complex hydrological processes in the area and the difficulty of quantifying the value of water used by mines. A semi-distributed model developed within the Water Evaluation and Planning System (WEAP), was calibrated to reproduce water supply, and this was complemented with an analysis of the value of water for mining based on two methods; water markets and an analysis of its production processes. Agriculture and other users were included through methods commonly used in similar models. The outputs help understanding the value of water in the catchment, and its sensitivity to changes in climate variables, market prices, environmental regulations and changes in the production of minerals, crops and energy. The results of the project highlight the importance of merging hydrology and socio-economic calculations in mining regions, in order to better understand trade-offs and cost of opportunity of using water for an economic activity with high revenues, averse to water risks and with potentially large catchment impacts.

  7. Building a Bright Future. The Hydro Research Foundation's Fellowship Program

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Vaughn, Brenna; Linke, Deborah M.

    The Hydro Fellowship Program (program) began as an experiment to discover whether the hydropower industry could find mechanisms to attract new entrants through conducting relevant research to benefit the industry. This nationwide, new-to-the-world program was started through funding from the Wind and Water Power Technologies Office of the Energy Efficiency and Renewable Energy (EERE) Office of the Department of Energy (DOE). Between 2010-2015, the Hydro Research Foundation (HRF) designed and implemented a program to conduct valuable research and attract new entrants to the hydro workforce. This historic grant has empowered and engaged industry members from 25 organizations by working withmore » 91 students and advisors at 24 universities in 19 states. The work funded answered pressing research needs in the fields of civil, mechanical, environmental, and electrical engineering, as well as law, energy engineering and materials innovation. In terms of number of individuals touched through funding, 148 individuals were supported by this work through direct research, mentorship, oversight of the work, partnerships and the day-to-day program administration. Based on the program results, it is clear that the funding achieved the hoped-for outcomes and has the capacity to draw universities into the orbit of hydropower and continue the conversation about industry research and development needs. The Foundation has fostered unique partnerships at the host universities and has continued to thrive with the support of the universities, advisors, industry and the DOE. The Foundation has demonstrated industry support through mentorships, partnerships, underwriting the costs and articulating the universities’ support through in-kind cost sharing. The Foundation recommends that future work be continued to nurture these graduate level programs using the initial work and improvements in the successor program, the Research Awards Program, while stimulating engagement of academia at the community college level for operations and maintenance workforce development.« less

  8. Research and simulation on the rollover system of corn harvester

    NASA Astrophysics Data System (ADS)

    Li, Shizhuang; Cao, Shukun

    2017-01-01

    The structural characteristics of our country's corn harvester are narrow-track, high centroid and existence of eccentric distance, so rollover accident is easily to occur when driving in mountainous and hilly regions. In order to improve the design quality of corn harvester and enhance the security of operation, it is of great significance to research the rollover prevention system of the corn harvester. Hydro-pneumatic suspension has powerful function of adjusting the balance of automobile body and good shock absorption function. In this paper, hydro-pneumatic suspension is applied to the rollover prevention system of the corn harvester to improve the ability of anti-rollover. At last using ADAMS simulation technology to simulate the roll stability of traditional corn harvester and the corn harvester with hydro pneumatic suspension, then calculating the heeling angle in both cases.

  9. Design and Implementation of an International Training Program on Repository Development and Management

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Vugrin, K.W.; Twitchell, Ch.A.

    2008-07-01

    Korea Hydro and Nuclear Power Co., Ltd. (KHNP) is an electric company in the Republic of Korea with twenty operational nuclear power plants and eight additional units that are either planned or currently under construction. Regulations require that KHNP manage the radioactive waste generated by their nuclear power plants. In the course of planning low, intermediate, and high level waste storage facilities, KHNP sought interaction with an acknowledged expert in the field of radioactive waste management and, consequently, contacted Sandia National Laboratories (SNL). KHNP has contracted with SNL to provide a year long training program on repository science. This papermore » discusses the design of the curriculum, specific plans for execution of the training program, and recommendations for smooth implementation of international training programs. (authors)« less

  10. Overview of Hydrometeorologic Forecasting Procedures at BC Hydro

    NASA Astrophysics Data System (ADS)

    McCollor, D.

    2004-12-01

    Energy utility companies must balance production from limited sources with increasing demand from industrial, business, and residential consumers. The utility planning process requires a balanced, efficient, and effective distribution of energy from source to consumer. Therefore utility planners must consider the impact of weather on energy production and consumption. Hydro-electric companies should be particularly tuned to weather because their source of energy is water, and water supply depends on precipitation. BC Hydro operates as the largest hydro-electric company in western Canada, managing over 30 reservoirs within the province of British Columbia, and generating electricity for 1.6 million people. BC Hydro relies on weather forecasts of watershed precipitation and temperature to drive hydrologic reservoir inflow models and of urban temperatures to meet energy demand requirements. Operations and planning specialists in the company rely on current, value-added weather forecasts for extreme high-inflow events, daily reservoir operations planning, and long-term water resource management. Weather plays a dominant role for BC Hydro financial planners in terms of sensitive economic responses. For example, a two percent change in hydropower generation, due in large part to annual precipitation patterns, results in an annual net change of \\50 million in earnings. A five percent change in temperature produces a \\5 million change in yearly earnings. On a daily basis, significant precipitation events or temperature extremes involve potential profit/loss decisions in the tens of thousands of dollars worth of power generation. These factors are in addition to environmental and societal costs that must be considered equally as part of a triple bottom line reporting structure. BC Hydro water resource managers require improved meteorological information from recent advancements in numerical weather prediction. At BC Hydro, methods of providing meteorological forecast data are changing as new downscaling and ensemble techniques evolve to improve environmental information supplied to water managers.

  11. Development turbine blade for ultramicro hydro power generation by 3D printer system

    NASA Astrophysics Data System (ADS)

    Kamimura, T.; Itoh, H.; Sugiura, K.

    2017-11-01

    We have developed micro generation system for effective use of unutilized energy and the spread of a self-controlled dispersion energy supply system. The turbine blade was designed for achieving high performance by special shape. The turbine type was called quasi-Peace turbine type. Turbine with a diameter of 30cm is made of metal, it was created by the 5-axis milling machine. The experimental apparatus was fabricated by the 3D printer. An experiment was carried out in the scale down model. The specific speed of this turbine was much lower than that of existing turbines.

  12. Water turbine technology for small power stations

    NASA Astrophysics Data System (ADS)

    Salovaara, T.

    1980-02-01

    The paper examines hydro-power stations and the efficiency and costs of using water turbines to run them. Attention is given to different turbine types emphasizing the use of Kaplan-turbines and runners. Hydraulic characteristics and mechanical properties of low head turbines and small turbines, constructed of fully fabricated steel plate structures, are presented.

  13. 1. Photocopied from photo 25797, Engineering Dept., Utah Power and ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. Photocopied from photo 25797, Engineering Dept., Utah Power and Light Co., Salt Lake City, Utah. 'WHEELON HYDRO-ELECTRIC PLANT (1725 KW) STATION, WEST PENSTOCK, 130 KV TRANSFORMERS AND SWITCHYARD AND EAST AND WEST CANALS. NOV 1914.' - Utah Sugar Company, Wheelon Hydoelectric Plant, Bear River, Fielding, Box Elder County, UT

  14. Homemade Electricity: An Introduction to Small-Scale Wind, Hydro, and Photovoltaic Systems.

    ERIC Educational Resources Information Center

    Smith, Diane

    This report consists of three parts. The first part provides advice (in the form of questions and answers) to prospective individual power producers who are considering investing in electricity-producing systems and in generating their own power. A list of Public Utilities Regulatory Policies Act (PURPA) regulations is included. This legislation…

  15. The Environmental Impact Study Of Micro Hydro Power In Pekalongan Indonesia

    NASA Astrophysics Data System (ADS)

    Suwarto; Hadi, Sudharto P.; Hermawan

    2018-02-01

    Curugmuncar II micro hydro power (MHP) located in Petungkriyono sub district is one of three MHPs installed in Pekalongan district. This study aims to analyze the MHP operation environmental impact. The study used qualitative method, with interviews, observations, and material testing. The data used are primary and secondary data. This research was conducted in Curugmuncar Village, Petungkriyono Subdistrict, Pekalongan Regency, Indonesia. MHP has power capacity of 100 KW with power usage of 50 KW. MHP used by 155 users with load capacity 2 A 220 volt AC. The community more used of lights as the houses and street lighting. The MHP operation had several environmental factors such as: sociology, technically feasible, hydrology, physical and chemical water quality, ergonomics, economically feasible, irrigation, clean water supply, government policy, and others. The supporting factors sustainability of MHP were sociology, irrigation, ergonomics, clean water supply, physical and chemical water quality, hydrology, and government policy. The inhibiting factors of MHP operation were technically feasible, economically feasible, and government policy. The results showed that the MHP environment requires a professional management system to achieve the MHP sustainability

  16. Hydro-environmental changes and their influence on the subsurface environment in the context of urban development.

    PubMed

    Yoshikoshi, Akihisa; Adachi, Itsu; Taniguchi, Tomomasa; Kagawa, Yuichi; Kato, Masahiro; Yamashita, Akio; Todokoro, Taiko; Taniguchi, Makoto

    2009-04-15

    The relationship between urban development and hydro-environmental change, particularly with regard to the subsurface environment is examined for three coastal cities affected by Asian monsoons (Tokyo and Osaka in Japan, and Bangkok in Thailand). Major differences in subsurface changes among these cities are closely related to city size, urban structure, and the timing, stage and extent of urbanization as well as the natural environment. The work shows that the urban development has not affected the Bangkok subsurface hydro-environment in the same way it has in Tokyo and Osaka. Three reasons for the difference account for this, (1) Bangkok's abundant annual rainfall, (2) Bangkok has the smallest ratio of impervious pavement surface area, meaning that surface water can more easily infiltrate underground., (3) the degree and extent of urbanization. Bangkok's subsurface hydro-environment has not been heavily affected because underground development has not yet reached deep subterranean areas. By researching yet more cities, at different stages of urbanization to that of Tokyo, Osaka and Bangkok, we plan to quantitatively examine urbanization and its influence on subsurface hydro-environments. This research will help limit damage to developing cities that are not yet experiencing subsurface failures but which are expected to confront these problems in the future.

  17. An investigation into the potential of low head hydro power in Northern Ireland for the production of electricity

    NASA Astrophysics Data System (ADS)

    Redpath, David; Ward, Michael J.

    2017-07-01

    The maximum exploitable potential for low head hydroelectric sites (gross head≤10 m) in Northern Ireland (NI) was determined as 12.07 MW using a simple payback analysis for 304 potential sites investigated to derive a classification scheme in terms of economic viability. A techno-economic analysis with validated numerical models from previous research estimated the capital investment required for the development of a hydroelectric plant, using the low head Michell-Banki cross flow turbine, for the 304 sites investigated. The number of potentially viable sites in NI for low head hydro ranged from 198 to 286 with an estimated installed capacity ranging from 11.95 to 12.05 MW. Sites with a limited installed capacity were not economically viable unless increased government support in the form of longer term (25-50 years) low interest loans as well as the current (Renewables Obligations Certificates) Renewables Obligation Certificates scheme is provided and sustained.

  18. Water withdrawal and consumption reduction analysis for electrical energy generation system

    NASA Astrophysics Data System (ADS)

    Nouri, Narjes

    There is an increasing concern over shrinking water resources. Water use in the energy sector primarily occurs in electricity generation. Anticipating scarcer supplies, the value of water is undoubtedly on the rise and design, implementation, and utilization of water saving mechanisms in energy generation systems are becoming inevitable. Most power plants generate power by boiling water to produce steam to spin electricity-generating turbines. Large quantities of water are often used to cool the steam in these plants. As a consequence, most fossil-based power plants in addition to consuming water, impact the water resources by raising the temperature of water withdrawn for cooling. A comprehensive study is conducted in this thesis to analyze and quantify water withdrawals and consumption of various electricity generation sources such as coal, natural gas, renewable sources, etc. Electricity generation for the state of California is studied and presented as California is facing a serious drought problem affecting more than 30 million people. Integrated planning for the interleaved energy and water sectors is essential for both water and energy savings. A linear model is developed to minimize the water consumption while considering several limitations and restrictions. California has planned to shut down some of its hydro and nuclear plants due to environmental concerns. Studies have been performed for various electricity generation and water saving scenarios including no-hydro and no-nuclear plant and the results are presented. Modifications to proposed different scenarios have been applied and discussed to meet the practical and reliability constraints.

  19. Experimental optimization of a free vortex propeller runner for micro hydro application

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Singh, Punit; Nestmann, Franz

    2009-09-15

    The turbine technology for low head application in the micro hydro range has been vastly neglected despite niche available in scattered regions of valley flows as well as in wastewater canals and other energy recovery schemes, where the available head does not exceed 2 meters. The goal of this study is to develop hydraulically optimized propeller turbines for the micro hydro range with a particular focus on ease of manufacture. This paper presents a wide range of geometrical optimization steps carried out on a propeller runner, whose blades have been designed using the free vortex theory, and operating with amore » gross head from 1.5 to 2 m and discharge of approximately 75 l/s. It further illustrates 3 stages of geometrical modifications carried out on the runner with an objective of optimizing the runner performance. These modifications comprised of changes to the tip angles (both at the runner inlet and exit) as well as the hub angles (at the runner inlet) of the runner blades. The paper also presents an interesting theoretical methodology to analyze the effects of each optimization stage. This method looks at the relative changes to shaft power and discharge at constant head and speed and gives wonderful insight as to how the internal parameters like Euler shaft work and runner hydraulic losses are behaving with respect to each optimization stage. It was found that the performance of the runner was very sensitive to changes to exit tip angle. At two levels of modification, the discharge increased in the range of 15-30%, while shaft power increased in the range of 12-45%, thus influencing the efficiency characteristics. The results of the runner inlet tip modification were very interesting in that a very significant rise of turbine efficiency was recorded from 55% to 74% at the best efficiency point, which was caused by a reduced discharge consumption as well as a higher power generation. It was also found that the optimization study on a propeller runner has reasonably validated the estimates of the free vortex theory despite small deviations. The final runner configuration demonstrated a maximum efficiency of 74% ({+-}1.8%), which is very encouraging from the perspectives of micro hydro application. The paper concludes with recommendations of a series of optimization steps to increase the efficiency of the runner. It also recommends the attempt of Computational Fluid Dynamics both as a validation and optimization tool for future research on propeller runners. (author)« less

  20. HydroSHEDS: A global comprehensive hydrographic dataset

    NASA Astrophysics Data System (ADS)

    Wickel, B. A.; Lehner, B.; Sindorf, N.

    2007-12-01

    The Hydrological data and maps based on SHuttle Elevation Derivatives at multiple Scales (HydroSHEDS) is an innovative product that, for the first time, provides hydrographic information in a consistent and comprehensive format for regional and global-scale applications. HydroSHEDS offers a suite of geo-referenced data sets, including stream networks, watershed boundaries, drainage directions, and ancillary data layers such as flow accumulations, distances, and river topology information. The goal of developing HydroSHEDS was to generate key data layers to support regional and global watershed analyses, hydrological modeling, and freshwater conservation planning at a quality, resolution and extent that had previously been unachievable. Available resolutions range from 3 arc-second (approx. 90 meters at the equator) to 5 minute (approx. 10 km at the equator) with seamless near-global extent. HydroSHEDS is derived from elevation data of the Shuttle Radar Topography Mission (SRTM) at 3 arc-second resolution. The original SRTM data have been hydrologically conditioned using a sequence of automated procedures. Existing methods of data improvement and newly developed algorithms have been applied, including void filling, filtering, stream burning, and upscaling techniques. Manual corrections were made where necessary. Preliminary quality assessments indicate that the accuracy of HydroSHEDS significantly exceeds that of existing global watershed and river maps. HydroSHEDS was developed by the Conservation Science Program of the World Wildlife Fund (WWF) in partnership with the U.S. Geological Survey (USGS), the International Centre for Tropical Agriculture (CIAT), The Nature Conservancy (TNC), and the Center for Environmental Systems Research (CESR) of the University of Kassel, Germany.

  1. THE ONTARIO HYDRO METHOD FOR SPECIATED MERCURY MEASUREMENTS: ISSUES AND CONSIDERATIONS

    EPA Science Inventory

    The Ontario Hydro (OH) method has been developed for the measurement of total and speciated mercury emissions from coal-fired combustion sources. The OH method was initially developed to support EPA's information collection request to characterize and inventory mercury emissions ...

  2. Hydroelectric System Response to Part Load Vortex Rope Excitation

    NASA Astrophysics Data System (ADS)

    Alligné, S.; Nicolet, C.; Bégum, A.; Landry, C.; Gomes, J.; Avellan, F.

    2016-11-01

    The prediction of pressure and output power fluctuations amplitudes on Francis turbine prototype is a challenge for hydro-equipment industry since it is subjected to guarantees to ensure smooth and reliable operation of the hydro units. The European FP7 research project Hyperbole aims to setup a methodology to transpose the pressure fluctuations induced by the cavitation vortex rope on the reduced scale model to the prototype generating units. A Francis turbine unit of 444MW with a specific speed value of v = 0.29, is considered as case study. A SIMSEN model of the power station including electrical system, controllers, rotating train and hydraulic system with transposed draft tube excitation sources is setup. Based on this model, a frequency analysis of the hydroelectric system is performed to analyse potential interactions between hydraulic excitation sources and electrical components.

  3. An Inverse Modeling Plugin for HydroDesktop using the Method of Anchored Distributions (MAD)

    NASA Astrophysics Data System (ADS)

    Ames, D. P.; Osorio, C.; Over, M. W.; Rubin, Y.

    2011-12-01

    The CUAHSI Hydrologic Information System (HIS) software stack is based on an open and extensible architecture that facilitates the addition of new functions and capabilities at both the server side (using HydroServer) and the client side (using HydroDesktop). The HydroDesktop client plugin architecture is used here to expose a new scripting based plugin that makes use of the R statistics software as a means for conducting inverse modeling using the Method of Anchored Distributions (MAD). MAD is a Bayesian inversion technique for conditioning computational model parameters on relevant field observations yielding probabilistic distributions of the model parameters, related to the spatial random variable of interest, by assimilating multi-type and multi-scale data. The implementation of a desktop software tool for using the MAD technique is expected to significantly lower the barrier to use of inverse modeling in education, research, and resource management. The HydroDesktop MAD plugin is being developed following a community-based, open-source approach that will help both its adoption and long term sustainability as a user tool. This presentation will briefly introduce MAD, HydroDesktop, and the MAD plugin and software development effort.

  4. Improved cyberinfrastructure for integrated hydrometeorological predictions within the fully-coupled WRF-Hydro modeling system

    NASA Astrophysics Data System (ADS)

    gochis, David; hooper, Rick; parodi, Antonio; Jha, Shantenu; Yu, Wei; Zaslavsky, Ilya; Ganapati, Dinesh

    2014-05-01

    The community WRF-Hydro system is currently being used in a variety of flood prediction and regional hydroclimate impacts assessment applications around the world. Despite its increasingly wide use certain cyberinfrastructure bottlenecks exist in the setup, execution and post-processing of WRF-Hydro model runs. These bottlenecks result in wasted time, labor, data transfer bandwidth and computational resource use. Appropriate development and use of cyberinfrastructure to setup and manage WRF-Hydro modeling applications will streamline the entire workflow of hydrologic model predictions. This talk will present recent advances in the development and use of new open-source cyberinfrastructure tools for the WRF-Hydro architecture. These tools include new web-accessible pre-processing applications, supercomputer job management applications and automated verification and visualization applications. The tools will be described successively and then demonstrated in a set of flash flood use cases for recent destructive flood events in the U.S. and in Europe. Throughout, an emphasis on the implementation and use of community data standards for data exchange is made.

  5. JPRS Report, Soviet Union, Foreign Military Review, No. 8, August 1987

    DTIC Science & Technology

    1988-01-28

    Hinkley Point (1.5 million) and Hartlepool (1.3 million). In recent years the country has begun building large hydro- electric pumped storage power ...antenna 6. Interface equipment 7. Data transmission line terminal 8. Computer 9. Power supply plant control station 10. Radio-relay station terminals... stations and data transmission line, interface equipment, and power distribution unit (Fig. 3). The parallel computer, which performs operations on

  6. Transforming the U.S. Market with a New Application of Ternary-Type Pumped-Storage Hydropower Technology: Preprint

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Corbus, David A; Jacobson, Mark D; Tan, Jin

    As the deployment of wind and solar technologies increases at an unprecedented rate across the United States and in many world markets, the variability of power output from these technologies expands the need for increased power system flexibility. Energy storage can play an important role in the transition to a more flexible power system that can accommodate high penetrations of variable renewable technologies. This project focuses on how ternary pumped storage hydropower (T-PSH) coupled with dynamic transmission can help this transition by defining the system-wide benefits of deploying this technology in specific U.S. markets. T-PSH technology is the fastest respondingmore » pumped hydro technology equipment available today for grid services. T-PSH efficiencies are competitive with lithium-ion (Li-ion) batteries, and T-PSH can provide increased storage capacity with minimal degradation during a 50-year lifetime. This project evaluates T-PSH for grid services ranging from fast frequency response (FFR) for power system contingency events and enhanced power system stability to longer time periods for power system flexibility to accommodate ramping from wind and solar variability and energy arbitrage. In summary, this project: Compares power grid services and costs, including ancillary services and essential reliability services, for T-PSH and conventional pumped storage hydropower (PSH) - Evaluates the dynamic response of T-PSH and PSH technologies and their contribution to essential reliability services for grid stability by developing new power system model representations for T-PSH and performing simulations in the Western Interconnection - Evaluates production costs, operational impacts, and energy storage revenue streams for future power system scenarios with T-PSH focusing on time frames of 5 minutes and more - Assesses the electricity market-transforming capabilities of T-PSH technology coupled with transmission monitoring and dynamic control. This paper presents an overview of the methodology and initial, first-year preliminary findings of a 2-year in-depth study into how advanced PSH and dynamic transmission contribute to the transformation and modernization of the U.S. electric grid. This project is part of the HydroNEXT Initiative funded by the U.S. Department of Energy (DOE) that is focused on the development of innovative technologies to advance nonpowered dams and PSH. The project team consists of the National Renewable Energy Laboratory (project lead), Absaroka Energy, LLC (Montana-based PSH project developer), GE Renewable Energy (PSH pump/turbine equipment supplier), Grid Dynamics, and Auburn University (lead for NREL/Auburn dynamic modeling team).« less

  7. 77 FR 2290 - Modern Hydro; Notice of Preliminary Permit Application Accepted for Filing and Soliciting...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-17

    ... proposed Delhi Milldam Water Power Project No. 14311 to be located at the existing Delhi Dam, on the south... three 25-foot- wide vertical sluice gates; (4) two refurbished 2,400-volt Westinghouse generator units powered by two refurbished S. Morgan Smith turbines with a combined generating capacity of 1,500 kilowatts...

  8. History of energy sources and their utilization in Nigeria

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Ogunsola, O.I.

    1990-01-01

    Nigeria, a major oil producer, is rich in other energy sources. These include wood, coal, gas, tar sands, and hydro power. Although oil has been the most popular, some other energy sources have a longer history. This article discusses the historical trends in the production and utilization of Nigerian energy sources. Wood has the longest history. However,its utilization was limited to domestic cooking. Imported coal was first used in 1896, but it was not discovered in Nigeria until 1909 and was first produced in 1916. Although oil exploration started in 1901, it was first discovered in commercial quantity in 1956more » and produced in 1958. Oil thereafter took over the energy scene from coal until 1969, when hydro energy was first produced. Energy consumption has been mainly from hydro. Tar sands account for about 55% of total proven non-renewable reserves.« less

  9. iTree-Hydro: Snow hydrology update for the urban forest hydrology model

    Treesearch

    Yang Yang; Theodore A. Endreny; David J. Nowak

    2011-01-01

    This article presents snow hydrology updates made to iTree-Hydro, previously called the Urban Forest Effects—Hydrology model. iTree-Hydro Version 1 was a warm climate model developed by the USDA Forest Service to provide a process-based planning tool with robust water quantity and quality predictions given data limitations common to most urban areas. Cold climate...

  10. Data and Models as Social Objects in the HydroShare System for Collaboration in the Hydrology Community and Beyond

    NASA Astrophysics Data System (ADS)

    Tarboton, D. G.; Idaszak, R.; Horsburgh, J. S.; Ames, D. P.; Goodall, J. L.; Band, L. E.; Merwade, V.; Couch, A.; Hooper, R. P.; Maidment, D. R.; Dash, P. K.; Stealey, M.; Yi, H.; Gan, T.; Castronova, A. M.; Miles, B.; Li, Z.; Morsy, M. M.; Crawley, S.; Ramirez, M.; Sadler, J.; Xue, Z.; Bandaragoda, C.

    2016-12-01

    How do you share and publish hydrologic data and models for a large collaborative project? HydroShare is a new, web-based system for sharing hydrologic data and models with specific functionality aimed at making collaboration easier. HydroShare has been developed with U.S. National Science Foundation support under the auspices of the Consortium of Universities for the Advancement of Hydrologic Science, Inc. (CUAHSI) to support the collaboration and community cyberinfrastructure needs of the hydrology research community. Within HydroShare, we have developed new functionality for creating datasets, describing them with metadata, and sharing them with collaborators. We cast hydrologic datasets and models as "social objects" that can be shared, collaborated around, annotated, published and discovered. In addition to data and model sharing, HydroShare supports web application programs (apps) that can act on data stored in HydroShare, just as software programs on your PC act on your data locally. This can free you from some of the limitations of local computing capacity and challenges in installing and maintaining software on your own PC. HydroShare's web-based cyberinfrastructure can take work off your desk or laptop computer and onto infrastructure or "cloud" based data and processing servers. This presentation will describe HydroShare's collaboration functionality that enables both public and private sharing with individual users and collaborative user groups, and makes it easier for collaborators to iterate on shared datasets and models, creating multiple versions along the way, and publishing them with a permanent landing page, metadata description, and citable Digital Object Identifier (DOI) when the work is complete. This presentation will also describe the web app architecture that supports interoperability with third party servers functioning as application engines for analysis and processing of big hydrologic datasets. While developed to support the cyberinfrastructure needs of the hydrology community, the informatics infrastructure for programmatic interoperability of web resources has a generality beyond the solution of hydrology problems that will be discussed.

  11. Fishy Business: Response of Stream Fish Assemblages to Small Hydro-power Plant Induced Flow Alteration in the Western Ghats, Karnataka

    NASA Astrophysics Data System (ADS)

    Rao, S. T.; Krishnaswamy, J.; Bhalla, R. S.

    2017-12-01

    Alteration of natural flow regimes is considered as a major threat to freshwater fish assemblages as it disturbs the water quality and micro-habitat features of rivers. Small hydro-power (SHP), which is being promoted as a clean and green substitute for large hydro-power generation, alters the natural flow regime of head-water streams by flow diversion and regulation. The effects of altered flow regime on tropical stream fish assemblages, driven by seasonality induced perturbations to water quality and microhabitat parameters are largely understudied. My study examined the potential consequences of flow alteration by SHPs on fish assemblages in two tributaries of the west-flowing Yettinahole River which flows through the reserved forests of Sakleshpur in the Western Ghats of Karnataka. The flow in one of the tributaries followed natural flow regime while the other comprised three regimes: a near-natural flow regime above the dam, rapidly varying discharge below the dam and a dewatered regime caused by flow diversion. The study found that the altered flow regime differed from natural flow regime in terms of water quality, microhabitat heterogeneity and fish assemblage response, each indicative of the type of flow alteration. Fish assemblage in the natural flow regime was characterized by a higher catch per site, a strong association of endemic and trophic specialist species. The flow regime above the dam was found to mimic some components of the natural flow regime, both ecological and environmental. Non endemic, generalist and pool tolerant species were associated with the dewatered regime. There was a lack of strong species-regime association and an overall low catch per site for the flow regulated regime below the dam. This study highlights the consequences of altered flows on the composition of freshwater fish assemblages and portrays the potential of freshwater fish as indicators of the degree and extent of flow alteration. The study recommends the need for maintaining continuous flow data records to model ecological data with hydrological measurements. In the light of rapid SHP development, the study also suggests environmental / cumulative impact assessments of SHPs on the river basin.

  12. Advancing Collaboration through Hydrologic Data and Model Sharing

    NASA Astrophysics Data System (ADS)

    Tarboton, D. G.; Idaszak, R.; Horsburgh, J. S.; Ames, D. P.; Goodall, J. L.; Band, L. E.; Merwade, V.; Couch, A.; Hooper, R. P.; Maidment, D. R.; Dash, P. K.; Stealey, M.; Yi, H.; Gan, T.; Castronova, A. M.; Miles, B.; Li, Z.; Morsy, M. M.

    2015-12-01

    HydroShare is an online, collaborative system for open sharing of hydrologic data, analytical tools, and models. It supports the sharing of and collaboration around "resources" which are defined primarily by standardized metadata, content data models for each resource type, and an overarching resource data model based on the Open Archives Initiative's Object Reuse and Exchange (OAI-ORE) standard and a hierarchical file packaging system called "BagIt". HydroShare expands the data sharing capability of the CUAHSI Hydrologic Information System by broadening the classes of data accommodated to include geospatial and multidimensional space-time datasets commonly used in hydrology. HydroShare also includes new capability for sharing models, model components, and analytical tools and will take advantage of emerging social media functionality to enhance information about and collaboration around hydrologic data and models. It also supports web services and server/cloud based computation operating on resources for the execution of hydrologic models and analysis and visualization of hydrologic data. HydroShare uses iRODS as a network file system for underlying storage of datasets and models. Collaboration is enabled by casting datasets and models as "social objects". Social functions include both private and public sharing, formation of collaborative groups of users, and value-added annotation of shared datasets and models. The HydroShare web interface and social media functions were developed using the Django web application framework coupled to iRODS. Data visualization and analysis is supported through the Tethys Platform web GIS software stack. Links to external systems are supported by RESTful web service interfaces to HydroShare's content. This presentation will introduce the HydroShare functionality developed to date and describe ongoing development of functionality to support collaboration and integration of data and models.

  13. SLH Timing Belt Powertrain

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Schneider, Abe

    2014-04-09

    The main goal of this proposal was to develop and test a novel powertrain solution for the SLH hydroEngine, a low-cost, efficient low-head hydropower technology. Nearly two-thirds of U.S. renewable electricity is produced by hydropower (EIA 2010). According to the U.S. Department of Energy; this amount could be increased by 50% with small hydropower plants, often using already-existing dams (Hall 2004). There are more than 80,000 existing dams, and of these, less than 4% generate power (Blankinship 2009). In addition, there are over 800 irrigation districts in the U.S., many with multiple, non-power, low-head drops. These existing, non-power dams andmore » irrigation drops could be retrofitted to produce distributed, baseload, renewable energy with appropriate technology. The problem is that most existing dams are low-head, or less than 30 feet in height (Ragon 2009). Only about 2% of the available low-head hydropower resource in the U.S. has been developed, leaving more than 70 GW of annual mean potential low-head capacity untapped (Hall 2004). Natel Energy, Inc. is developing a low-head hydropower turbine that operates efficiently at heads less than 6 meters and is cost-effective for deployment across multiple low-head structures. Because of the unique racetrack-like path taken by the prime-movers in the SLH, a flexible powertrain is required. Historically, the only viable technological solution was roller chain. Despite the having the ability to easily attach blades, roller chain is characterized by significant drawbacks, including high cost, wear, and vibration from chordal action. Advanced carbon- fiber-reinforced timing belts have been recently developed which, coupled with a novel belt attachment system developed by Natel Energy, result in a large reduction in moving parts, reduced mass and cost, and elimination of chordal action for increased fatigue life. The work done in this project affirmatively addressed each of the following 3 major uncertainties concerning a timing-belt based hydroEngine powertrain: 1. Can a belt handle the high torques and power loads demanded by the SLH? (Yes.) 2. Can the SLH blades be mounted to belt with a connection that can withstand the loads encountered in operation? (Yes.) 3. Can the belt, with blade attachments, live through the required cyclic loading? (Yes.) The research adds to the general understanding of sustainable small hydropower systems by using innovative system testing to develop and demonstrate performance of a novel powertrain solution, enabling a new type of hydroelectric turbine to be commercially developed. The technical effectiveness of the methods investigated has been shown to be positive through an extensive design and testing process accommodating many constraints and goals, with a major emphasis on high cycle fatigue life. Economic feasibility of the innovations has been demonstrated through many iterations of design for manufacturability and cost reduction. The project is of benefit to the public because it has helped to develop a solution to a major problem -- despite the large available potential for new low-head hydropower, high capital costs and high levelized cost of electricity (LCOE) continue to be major barriers to project development. The hydroEngine represents a significant innovation, leveraging novel fluid mechanics and mechanical configuration to allow lower-cost turbine manufacture and development of low head hydropower resources.« less

  14. Building an ensemble of climate scenarios for decision-making in hydrology: benefits, pitfalls and uncertainties

    NASA Astrophysics Data System (ADS)

    Braun, Marco; Chaumont, Diane

    2013-04-01

    Using climate model output to explore climate change impacts on hydrology requires several considerations, choices and methods in the post treatment of the datasets. In the effort of producing a comprehensive data base of climate change scenarios for over 300 watersheds in the Canadian province of Québec, a selection of state of the art procedures were applied to an ensemble comprising 87 climate simulations. The climate data ensemble is based on global climate simulations from the Coupled Model Intercomparison Project - Phase 3 (CMIP3) and regional climate simulations from the North American Regional Climate Change Assessment Program (NARCCAP) and operational simulations produced at Ouranos. Information on the response of hydrological systems to changing climate conditions can be derived by linking climate simulations with hydrological models. However, the direct use of raw climate model output variables as drivers for hydrological models is limited by issues such as spatial resolution and the calibration of hydro models with observations. Methods for downscaling and bias correcting the data are required to achieve seamless integration of climate simulations with hydro models. The effects on the results of four different approaches to data post processing were explored and compared. We present the lessons learned from building the largest data base yet for multiple stakeholders in the hydro power and water management sector in Québec putting an emphasis on the benefits and pitfalls in choosing simulations, extracting the data, performing bias corrections and documenting the results. A discussion of the sources and significance of uncertainties in the data will also be included. The climatological data base was subsequently used by the state owned hydro power company Hydro-Québec and the Centre d'expertise hydrique du Québec (CEHQ), the provincial water authority, to simulate future stream flows and analyse the impacts on hydrological indicators. While this submission focuses on the production of climatic scenarios for application in hydrology, the submission « The (cQ)2 project: assessing watershed scale hydrological changes for the province of Québec at the 2050 horizon, a collaborative framework » by Catherine Guay describes how Hydro-Québec and CEHQ put the data into use.

  15. Effects of particle size and hydro-thermal treatment of feed on performance and stomach health in fattening pigs.

    PubMed

    Liermann, Wendy; Berk, Andreas; Böschen, Verena; Dänicke, Sven

    2015-01-01

    Effects of grinding and hydro-thermal treatment of feed on growth performance, slaughter traits, nutrient digestibility, stomach content and stomach health were examined by using 96 crossbred fattening pigs. Pigs were fed a grain-soybean meal-based diet processed by various technical treatments. Feeding groups differed in particle size after grinding (finely vs. coarsely ground feed) and hydro-thermal treatment (without hydro-thermal treatment, pelleting, expanding, expanding and pelleting). Fine grinding and hydro-thermal treatment showed significant improvements on the digestibility of crude nutrients and content of metabolisable energy. Hydro-thermal treatment influenced average daily gain (ADG) and average daily feed intake (DFI) significantly. Finely ground pelleted feed without expanding enhanced performances by increasing ADG and decreasing feed-to-gain ratio (FGR) of fattening pigs. Coarsely ground feed without hydro-thermal treatment resulted in the highest ADG and DFI, however also in the highest FGR. Expanded feed decreased DFI and ADG. Slaughter traits were not affected by treatments. Coarsely ground feed without hydro-thermal treatment had protective effects on the health of gastric pars nonglandularis, however, pelleting increased gastric lesions. Hydro-thermal treatment, especially expanding, resulted in clumping of stomach content which possibly induced satiety by slower ingesta passage rate and thus decreased feed intake. Pigs fed pelleted feed showed less pronounced development of clumps in stomach content compared with expanded feed.

  16. Implementing renewable energy in Cuba

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Hawthorne, W.; Stone, L.; Perez, V.B.H.

    Since the collapse of the Soviet Union and the tightening of the US embargo, Cuba has found itself in an energy crisis of enormous magnitude. Faced with this energy crisis and its ensuing black-outs and productivity reductions, Cuba has developed a national energy plan which focuses on energy self-sufficiency and sustainability. Energy efficiency, solar energy, wind power, micro-hydro, and biomass are each included in the plan. Implementation of renewable energy projects in each of these areas has begun throughout the country with the enthusiastic support of Cubasolar, the Cuban renewable energy professional association.

  17. Proceedings of condensed papers on alternate energy sources

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Veziroglu, T.N.

    1979-01-01

    The conference covers the results of research and developments which have taken place during the last 2 years. It includes sessions on solar energy, ocean thermal energy, wind energy, hydro power, nuclear breeders and nuclear fusion, synthetic fuels from coal or waste, hydrogen production and uses. The volume of the Proceedings presents the papers and lectures in condensed format grouped by their subjects under 40 technical sessions. Condensed papers are presented for the 336 presentations; abstracts have previously appeared in the DOE Energy Data Base for 33 of the full-length papers.

  18. Modeling Responses of Naturally Fractured Geothermal Reservoir to Low-Pressure Stimulation

    DOE Data Explorer

    Fu, Pengcheng; Carrigan, Charles R.

    2012-01-01

    Hydraulic shearing is an appealing reservoir stimulation strategy for Enhanced Geothermal Systems. It is believed that hydro-shearing is likely to simulate a fracture network that covers a relatively large volume of the reservoir whereas hydro-fracturing tends to create a small number of fractures. In this paper, we examine the geomechanical and hydraulic behaviors of natural fracture systems subjected to hydro-shearing stimulation and develop a coupled numerical model within the framework of discrete fracture network modeling. We found that in the low pressure hydro-shearing regime, the coupling between the fluid phase and the rock solid phase is relatively simple, and the numerical model is computationally efficient. Using this modified model, we study the behavior of a random fracture network subjected to hydro-shearing stimulation.

  19. Initial Northwest Power Act Power Sales Contracts : Final Environmental Impact Statement. Volume 2, Appendices A--L.

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    United States. Bonneville Power Administration.

    1992-01-01

    This report consists of appendices A-L of the final environmental impact statement for the Bonneville Power Administration. The appendices provide information on the following: Ninth circuit Court opinion in Forelaws on Board v. Johnson; guide to Northwest Power act contracts; guide to hydro operations; glossary; affected environment supporting documentation; environmental impacts of generic resource types; information on models used; technical information on analysis; public involvement activities; bibliography; Pacific Northwest Electric Power Planning and Conservation Act; and biological assessment. (CBS)

  20. Harnessing Alaska. [Hydroelectric power in Alaska

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Not Available

    Four hydropower projects will provide electricity for isolated Alaskan cities by late 1984. A 15Mw project is already producing power. The three remaining hydro projects are described. Tyee Lake is a lake tap project. Water is supplied to the powerhouse by tapping the lake via a tunnel blasted through the lake bottom. Water then flows through a vertical pressure shaft to a power tunnel and into an aboveground powerhouse. Swan Lake consists of a double-curved arch dam and a power tunnel. Terror Lake consists of a concrete-faced compacted rockfill dam and a power tunnel.

  1. Hyperenergetic manned aerospacecraft propelled by intense pulsed microwave power beam

    NASA Astrophysics Data System (ADS)

    Myrabo, Leik N.

    1995-09-01

    The objective of this research was to exploit wireless power transmission (microwave/millimeter)--to lower manned space transportation costs by two or three orders of magnitude. Concepts have been developed for lightweight, mass-producible, beam-propelled aerospacecraft called Lightcraft. The vehicles are designed for a 'mass-poor, energy-rich' (i.e. hyper-energentic flight infrastructure which utilizes remote microwave power stations to build an energy-beam highway to space. Although growth in laser power levels has lagged behind expectations, microwave and millimeter-wave source technology now exists for rapid scaling to the megawatt and gigawatt time-average power levels. The design exercise focused on the engine, structure, and receptive optics requirements for a 15 meter diameter, 5 person Earth- to-moon aerospacecraft. Key elements in the airbreathing accelerator propulsion system are: a) a 'flight-weight' 35GHz rectenna electric powerplant, b) microwave-induced 'Air Spike' and perimeter air-plasma generators, and c) MagnetoHydroDynamic-Fanjet engine with its superconducting magnets and external electrodes.

  2. Asynchrony of wind and hydropower resources in Australia.

    PubMed

    Gunturu, Udaya Bhaskar; Hallgren, Willow

    2017-08-18

    Wind and hydropower together constitute nearly 80% of the renewable capacity in Australia and their resources are collocated. We show that wind and hydro generation capacity factors covary negatively at the interannual time scales. Thus, the technology diversity mitigates the variability of renewable power generation at the interannual scales. The asynchrony of wind and hydropower resources is explained by the differential impact of the two modes of the El Ni˜no Southern Oscillation - canonical and Modoki - on the wind and hydro resources. Also, the Modoki El Ni˜no and the Modoki La Ni˜na phases have greater impact. The seasonal impact patterns corroborate these results. As the proportion of wind power increases in Australia's energy mix, this negative covariation has implications for storage capacity of excess wind generation at short time scales and for generation system adequacy at the longer time scales.

  3. [Demography perspectives and forecasts of the demand for electricity].

    PubMed

    Roy, L; Guimond, E

    1995-01-01

    "Demographic perspectives form an integral part in the development of electric load forecasts. These forecasts in turn are used to justify the addition and repair of generating facilities that will supply power in the coming decades. The goal of this article is to present how demographic perspectives are incorporated into the electric load forecasting in Quebec. The first part presents the methods, hypotheses and results of population and household projections used by Hydro-Quebec in updating its latest development plan. The second section demonstrates applications of such demographic projections for forecasting the electric load, with a focus on the residential sector." (SUMMARY IN ENG AND SPA) excerpt

  4. HydroViz: evaluation of a web-based tool for improving hydrology education

    NASA Astrophysics Data System (ADS)

    Habib, E.; Ma, Y.; Williams, D.; Sharif, H.; Hossain, F.

    2012-02-01

    HydroViz is a web-based, student-centered, highly visual educational tool designed to support active learning in the field of Engineering Hydrology. The development of HydroViz is informed by recent advances in hydrologic data, numerical simulations, visualization and web-based technologies. An evaluation study was conducted to determine the effectiveness of HydroViz, to examine the buy-in of the program, and to identify project components that need to be improved. A total of 182 students from seven freshmen and junior-/senior-level undergraduate classes in three universities participated in the study over the course of two semesters (spring 2010 and fall 2010). Data sources included homework assignments, online surveys, and informal interviews with students. Descriptive statistics were calculated for homework and the survey. Qualitative analysis of students' comments and informal interview notes were also conducted to identify ideas and patterns. HydroViz was effective in facilitating students' learning and understanding of hydrologic concepts and increasing related skills. Students had positive perceptions of various features of HydroViz and they believe that HydroViz fits well in the curriculum. The experience with HydroViz was somewhat effective in raising freshmen civil engineering students' interest in hydrology. In general, HydroViz tend to be more effective with students in junior- or senior-level classes than students in freshmen classes. There does not seem to be obvious differences between different universities. Students identified some issues that can be addressed to improve HydroViz. Future adaptation and expansion studies are under planning to scale-up the application and utility of HydroViz into various hydrology and water-resource engineering curriculum settings.

  5. 76 FR 56748 - Sunshine Act Meeting Notice

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-14

    ...-000 Southwest Power Pool, Inc. E-11 ER11-3064-001 PJM Interconnection, L.L.C. and Trans-Allegheny... Inc. and New England Power Pool. E-14 ER11-2224-004 New York Independent System Operator, Inc. ER11... Natural Gas Companies. Hydro H-1 P-2698-050 Duke Energy Carolinas, LLC. P-2686-062 H-2 P-13681-002 Grand...

  6. 76 FR 73614 - Lock 14 Hydro Partners; FFP Project 106 LLC; Notice of Competing Preliminary Permit Applications...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-29

    ... applications, pursuant to section 4(f) of the Federal Power Act, proposing to study the feasibility of a... directed by the Corps. Applicant Contact: Mr. David Brown Kinloch, Soft Energy Associates, 414 S. Wenzel... Swaminathan, Free Flow Power Corp., 239 Causeway Street, Suite 300, Boston, MA 02114. (978) 283-2822. FERC...

  7. 76 FR 73616 - Lock 12 Hydro Partners; FFP Project 107 LLC; Notice of Competing Preliminary Permit Applications...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-29

    ... applications, pursuant to section 4(f) of the Federal Power Act, proposing to study the feasibility of a... Lock and Dam No. 12, as directed by the Corps. Applicant Contact: Mr. David Brown Kinloch, Soft Energy.... Ramya Swaminathan, Free Flow Power Corp., 239 Causeway Street, Suite 300, Boston, MA 02114. (978) 283...

  8. 77 FR 31843 - Swan Lake North Hydro, LLC; Notice of Preliminary Permit Application Accepted For Filing and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-30

    ... California; and (14) appurtenant facilities. The project would be a closed-loop system using groundwater and... application for a successive preliminary permit, pursuant to section 4(f) of the Federal Power Act (FPA... power tunnel; (6) a 30-foot-diameter, 1,200-foot-long vertical shaft; (7) a 30-foot-diameter, 1,000-foot...

  9. How Low Can You Go? The Importance of Quantifying Minimum Generation Levels for Renewable Integration

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Denholm, Paul L; Brinkman, Gregory L; Mai, Trieu T

    One of the significant limitations of solar and wind deployment is declining value caused by the limited correlation of renewable energy supply and electricity demand as well as limited flexibility of the power system. Limited flexibility can result from thermal and hydro plants that cannot turn off or reduce output due to technical or economic limits. These limits include the operating range of conventional thermal power plants, the need for process heat from combined heat and power plants, and restrictions on hydro unit operation. To appropriately analyze regional and national energy policies related to renewable deployment, these limits must bemore » accurately captured in grid planning models. In this work, we summarize data sources and methods for U.S. power plants that can be used to capture minimum generation levels in grid planning tools, such as production cost models. We also provide case studies for two locations in the U.S. (California and Texas) that demonstrate the sensitivity of variable generation (VG) curtailment to grid flexibility assumptions which shows the importance of analyzing (and documenting) minimum generation levels in studies of increased VG penetration.« less

  10. A Conspectus on US Energy

    NASA Astrophysics Data System (ADS)

    Hayden, Howard

    2009-05-01

    Until about 1850, the energy used in the US came almost exclusively from firewood. Now we use petroleum, coal, natural gas, nuclear fission, indirect solar energy (biomass, hydro, and wind), geothermal energy, and direct solar energy (solar/thermal, solar/thermal/electric, and photovoltaics). Compared to our ancestors in 1850, we use over 40 times as much energy, of which only about 6 percent is from solar sources, versus 100% in 1850. On a per-capita basis we use about 3.1 times as much energy, in spite of the modern conveniences that to Abraham Lincoln would seem unthinkably lavish. The US uses about 107 EJ of primary energy annually, equivalent to 3.4 TW around-the-clock average power. About 40 percent of that energy goes toward production of electricity. Approximately 2 EJ of heat is obtained from combined heat-and-power plants that produce about 10^9 kWh (3.6 PJ) of electricity. (N.B.: hydro and wind do not involve heat-to-work conversion. By custom, the electrical energy produced by wind and hydro is multiplied by about 3 to generate an as-if quantity of primary energy.) When account is taken of how the electricity is distributed, industry uses 33 percent of the primary energy, followed by transportation (28%), residences (21%), and commercial establishments (18%). ``Fossil fuels'' (coal, oil, and natural gas) account for about 85 percent of our primary energy. Nuclear energy accounts for about 8%. Biomass and hydro, the venerable solar-derived sources, account for about 7%. Geothermal, wind, and direct solar energy account for about 0.4%. This talk will discuss prospects for various alternative sources, including nuclear fission and T. Boone Pickens' plan to displace imported petroleum indirectly by substituting wind for natural gas.

  11. 75 FR 5076 - American Hydro Power, Inc.; Notice of Preliminary Permit Application Accepted for Filing and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-01

    ...-long, 4,160-volt transmission line from the powerhouse to a transformer station, and a new... the transformer station; (10) and appurtenant facilities. The project would have an estimated annual...

  12. Prediction of Francis Turbine Prototype Part Load Pressure and Output Power Fluctuations with Hydroelectric Model

    NASA Astrophysics Data System (ADS)

    Alligné, S.; Nicolet, C.; Béguin, A.; Landry, C.; Gomes, J.; Avellan, F.

    2017-04-01

    The prediction of pressure and output power fluctuations amplitudes on Francis turbine prototype is a challenge for hydro-equipment industry since it is subjected to guarantees to ensure smooth and reliable operation of the hydro units. The European FP7 research project Hyperbole aims to setup a methodology to transpose the pressure fluctuations induced by the cavitation vortex rope from the reduced scale model to the prototype generating units. A Francis turbine unit of 444MW with a specific speed value of ν = 0.29, is considered as case study. A SIMSEN model of the power station including electrical system, controllers, rotating train and hydraulic system with transposed draft tube excitation sources is setup. Based on this model, a frequency analysis of the hydroelectric system is performed for all technologies to analyse potential interactions between hydraulic excitation sources and electrical components. Three technologies have been compared: the classical fixed speed configuration with Synchronous Machine (SM) and the two variable speed technologies which are Doubly Fed Induction Machine (DFIM) and Full Size Frequency Converter (FSFC).

  13. Modeling strategic competition in hydro-thermal electricity generation markets with cascaded reservoir-hydroelectric generation plants

    NASA Astrophysics Data System (ADS)

    Uluca, Basak

    This dissertation aims to achieve two goals. The first is to model the strategic interactions of firms that own cascaded reservoir-hydro plants in oligopolistic and mixed oligopolistic hydrothermal electricity generation markets. Although competition in thermal generation has been extensively modeled since the beginning of deregulation, the literature on competition in hydro generation is still limited; in particular, equilibrium models of oligopoly that study the competitive behavior of firms that own reservoir-hydro plants along the same river in hydrothermal electricity generation markets are still under development. In competitive markets, when the reservoirs are located along the same river, the water released from an upstream reservoir for electricity generation becomes input to the immediate downstream reservoir, which may be owned by a competitor, for current or future use. To capture the strategic interactions among firms with cascaded reservoir-hydro plants, the Upstream-Conjecture approach is proposed. Under the Upstream-Conjecture approach, a firm with an upstream reservoir-hydro plant assumes that firms with downstream reservoir-hydro plants will respond to changes in the upstream firm's water release by adjusting their water release by the same amount. The results of the Upstream Conjecture experiments indicate that firms that own upstream reservoirs in a cascade may have incentive to withhold or limit hydro generation, forcing a reduction in the utilization of the downstream hydro generation plants that are owned by competitors. Introducing competition to hydroelectricity generation markets is challenging and ownership allocation of the previously state-owned cascaded reservoir-hydro plants through privatization can have significant impact on the competitiveness of the generation market. The second goal of the dissertation is to extract empirical guidance about best policy choices for the ownership of the state-owned generation plants, including the cascaded reservoir-hydro plants. Specifically, an equilibrium model of oligopoly, where only private firms compete for electricity supply is proposed. Since some electricity generation markets are better characterized as mixed oligopolies, where the public firm coexists with the private firms for electricity supply, and not as oligopolies, another equilibrium model of mixed oligopoly is proposed. The proposed mixed oligopoly equilibrium model is the first implementation of such market structure in electricity markets. The mathematical models developed in this research are applied to the simplified representation of the Turkish electricity generation market to investigate the impact of various ownership allocation scenarios that may result from the privatization of the state owned generation plants, including the cascaded reservoir-hydro plants, on the competitive market outcomes.

  14. Prediction of Ungauged River Basin for Hydro Power Potential and Flood Risk Mitigation; a Case Study at Gin River, Sri Lanka

    NASA Astrophysics Data System (ADS)

    Ratnayake, A. S.

    2011-12-01

    The most of the primary civilizations of the world emerged in or near river valleys or floodplains. The river channels and floodplains are single hydrologic and geomorphic system. The failure to appreciate the integral connection between floodplains and channel underlies many socioeconomic and environmental problems in river management today. However it is a difficult task of collecting reliable field hydrological data. Under such situations either synthetic or statistically generated data were used for hydraulic engineering designing and flood modeling. The fundamentals of precipitation-runoff relationship through synthetic unit hydrograph for Gin River basin were prepared using the method of the Flood Studies Report of the National Environmental Research Council, United Kingdom (1975). The Triangular Irregular Network model was constructed using Geographic Information System (GIS) to determine hazard prone zones. The 1:10,000 and 1:50,000 topography maps and field excursions were also used for initial site selection of mini-hydro power units and determine flooding area. The turbines output power generations were calculated using the parameters of net head and efficiency of turbine. The peak discharge achieves within 4.74 hours from the onset of the rainstorm and 11.95 hours time takes to reach its normal discharge conditions of Gin River basin. Stream frequency of Gin River is 4.56 (Junctions/ km2) while the channel slope is 7.90 (m/km). The regional coefficient on the catchment is 0.00296. Higher stream frequency and gentle channel slope were recognized as the flood triggering factors of Gin River basin and other parameters such as basins catchment area, main stream length, standard average annual rainfall and soil do not show any significant variations with other catchments of Sri Lanka. The flood management process, including control of flood disaster, prepared for a flood, and minimize it impacts are complicated in human population encroached and modified floodplains. Thus modern GIS technology has been productively executed to prepare hazard maps based on the flood modeling and also it would be further utilized for disaster preparedness and mitigation activities. Five suitable hydraulic heads were recognized for mini-hydro power sites and it would be the most economical and applicable flood controlling hydraulic engineering structure considering all morphologic, climatic, environmental and socioeconomic proxies of the study area. Mini-hydro power sites also utilized as clean, eco friendly and reliable energy source (8630.0 kW). Finally Francis Turbine can be employed as the most efficiency turbine for the selected sites bearing in mind of both technical and economical parameters.

  15. The U.S. Navy Submarine Hydrodynamics/ Hydroacoustic Community: A Case Study in Strategic Planning for a Decentralized, Multi-Organizational, Military Community

    DTIC Science & Technology

    2004-12-01

    developed by John Bryson and Farnum K. Alston105 to facilitate this SWOT analysis and other strategic planning efforts with the Hydro Sub Group ...described in the previous chapter. Meetings with the Hydro Sub Group resulted in a SWOT analysis and a decision to identify the overarching strategic...113 APPENDIX A – RESULTS OF INITIAL PLANNING MEETINGS WITH THE HYDRO SUB GROUP – MARCH 2002

  16. Study of the use of a micro hydro in knockdown container completed with a cylindrical form housing of francis hydraulic turbine to support the development program of energy self-sustainability for remote and isolated areas in Indonesia

    NASA Astrophysics Data System (ADS)

    Kamal, Samsul; Prajitno; Pardadi, Janu

    2017-11-01

    With an intention to reduce the consumption of energy from fossil fuels and the CO2 emission in relation with the climate change solution, Indonesian Government has targeted that the role of the New and Renewable Energy (NRE) resources reaches at least 23% , or about 27 GW , in 2025 and it is expected to increase to the extent of about 134 GW in 2050 within the scenario of mixed energy supply. Geographically Indonesia has many remote and isolated areas with lack of appropriate infrastructure supports. But in the most of the areas, huge potential of new and renewable energy are available such as hydro energy is about 75 GW, biomass energy is about 32 GW and bio fuel is about 32 GW. The total utilization of the energy from small hydro energy up to this year for example is only about 300 MW. The significant obstacle in optimizing the utilization of small hydro energy in the areas is mainly on the infrastructure conditions and the local manufacture capabilities. Difficulties in mobilization of experts, skill worker , parts and constructions material result in very time consuming and costly for site construction. In this research a hydro turbine built in knock down container completed with a Francis turbine in cylindrical form housing is proposed and reported its performance on implementation. The hydro in a knock down container concept comes from the idea to manufacture hydro power solutions in a knock down container, readymade to be transported to installation sites. It can be easily manufactured in a quality controlled and cost effective environment, transported and installed in remote areas, to operate and maintain with minimal amount of equipment. It shows that the implementation of the unit in a remote area has reduced the total site construction time by 1/3 compared to the predicted one with conventional unit. The performance of the Francis turbine with cylindrical form housing has shown comparable with the conventional one which has volute form housing. The superiority was even more pronounced by introducing a deflection insert in its input flow channel. The insertion was capable to create more distributed flow into the runner. Efficiency of the turbine up to 80% was performed in this research. Local manufacture for turbine usually use many craft work and welding to built a volute form housing for the Francis turbine. The cylindrical form housing here has also proven significantly in reducing the time and price for the turbine manufacturing process.

  17. 77 FR 26542 - Black Mountain Hydro, LLC; Notice of Preliminary Permit Application Accepted for Filing and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-04

    ... the powerhouse to Sierra Pacific Power's Fort Churchill generating station, parallel to an existing... powerhouse to the PDCI and then parallel to the PDCI to the Fort Churchill generating station; and (9...

  18. 78 FR 7770 - Boyce Hydro Power, LLC; Notice of Application Accepted for Filing, Soliciting Motions To...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-04

    .... Description of Application: The licensee proposes to replace one of the project's three existing turbine/generator units with a new unit. The project's maximum hydraulic capacity would remain the same but the new...

  19. 76 FR 62396 - Martha Coakley, Attorney General of the Commonwealth of Massachusetts, Connecticut Public...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-07

    ..., Inc., Industrial Energy Consumer Group v. Bangor Hydro-Electric Company, Central Maine Power Company... Massachusetts Electric Company, Public Service Company of New Hampshire, NSTAR Electric & Gas Corporation, The United Illuminating Company, Unitil Energy [[Page 62397

  20. Acoustic relaxation of the hydro-mechanical system under critical expiration of swirl flow

    NASA Astrophysics Data System (ADS)

    Pozdeeva, I. G.; Mitrofanova, O. V.

    2018-03-01

    The mechanism of generation of acoustic oscillations associated with the formation of stable vortex structures in the moving fluid was considered for the impact swirl flow. Experimental studies were carried out to determine the relationship between large-scale vortex motion and acoustic effects in hydro-mechanical systems. It was shown that a sharp change of the amplitude-frequency characteristic of the acoustic oscillations of hydro-mechanical system corresponds to the maximal flow rate of the swirl flow. The established connection between the generation of sound waves and geometrical and regime parameters of the hydro-mechanical system formed the basis for the developed method of diagnostics of the processes of vortex formation.

  1. Feasibility study for the Swaziland/Mozambique interconnector. Final report. Export trade information

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    NONE

    1997-11-01

    This study, conducted by Black & Veatch, was funded by the U.S. Trade and Development Agency. The report, produced for the Ministry of National Resources, Energy and Environment (MNRE) of Swaziland, determines the least cost capacity expansion option to meet the future power demand and system reliability criteria of Swaziland, with particular emphasis on the proposed interconnector between Swaziland and Mozambique. Volume 2, the Final Report, contains the following sections: (1.0) Introduction; (2.0) Review of SEB Power System; (3.0) SEB Load Forecast and Review; (4.0) SEB Load Forecast Revision; (5.0) The SEB Need for Power; (6.0) SEB System Development Planmore » Review; (7.0) Southern Mozambique EdM power System Review; (8.0) Southern Mozambique EdM Energy and Demand; (9.0) Supply Side Capacity Options for Swaziland and Mozambique; (10.0) SEB Expansion Plan Development; (11.0) EdM Expansion Plan Development; (12.0) Cost Sharing of the Interconnector; (13.0) Enviroinmental Evaluation of Interconnector Options; (14.0) Generation/Transmission Trade Offs; (15.0) Draft Interconnection Agreement and Contract Packages; (16.0) Transmission System Study; (17.0) Automatic General Control; (18.0) Automatic Startup and Shutdown of Hydro Electric Power Plants; (19.0) Communications and Metering; (20.0) Conclusions and Recommendations; Appendix A: Demand Side Management Primer; Appendix B. PURPA and Avoided Cost Calculations.« less

  2. Spatial patterns of hydro-social metrics in the Northeastern United States from the Colonial Era through the Industrial Revolution (1600-1920)

    NASA Astrophysics Data System (ADS)

    Witherell, B. B.; Bain, D. J.; Salant, N.; Aloysius, N. R.

    2009-12-01

    Humans impact the hydrologic cycle at local, regional and global scales. Understanding how spatial patterns of human water use and hydrologic impact have changed over time is important to future water management in an era of increasing water constraints and globalization of high water-use resources. This study investigates spatial dependence and spatial patterns of hydro-social metrics for the Northeastern United States from 1600 to 1920 through the use of spatial statistical techniques. Several relevant hydro-social metrics, including water residence time, surface water storage (natural and human engineered) and per capita water availability, are analyzed. This study covers a region and period of time that saw significant population growth, landscape change, and industrial growth. These changes had important impacts on water availability. Although some changes such as the elimination of beavers, and the resulting loss of beaver ponds on low-order streams, are felt at a regional scale, preliminary analysis indicates that humans responded to water constraints by acting locally (e.g., mill ponds for water power and water supply reservoirs for public health). This 320-year historical analysis of spatial patterns of hydro-social metrics provides unique insight into long-term changes in coupled human-water systems.

  3. Low-order black-box models for control system design in large power systems

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Kamwa, I.; Trudel, G.; Gerin-Lajoie, L.

    1996-02-01

    The paper studies two multi-input multi-output (MIMO) procedures for the identification of low-order state-space models of power systems, by probing the network in open loop with low-energy pulses or random signals. Although such data may result from actual measurements, the development assumes simulated responses from a transient stability program, hence benefiting from the existing large base of stability models. While pulse data is processed using the eigensystem realization algorithm, the analysis of random responses is done by means of subspace identification methods. On a prototype Hydro-Quebec power system, including SVCs, DC lines, series compensation, and more than 1,100 buses, itmore » is verified that the two approaches are equivalent only when strict requirements are imposed on the pulse length and magnitude. The 10th-order equivalent models derived by random-signal probing allow for effective tuning of decentralized power system stabilizers (PSSs) able to damp both local and very slow inter-area modes.« less

  4. Low-order black-box models for control system design in large power systems

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Kamwa, I.; Trudel, G.; Gerin-Lajoie, L.

    1995-12-31

    The paper studies two multi-input multi-output (MIMO) procedures for the identification of low-order state-space models of power systems, by probing the network in open loop with low-energy pulses or random signals. Although such data may result from actual measurements, the development assumes simulated responses from a transient stability program, hence benefiting form the existing large base of stability models. While pulse data is processed using the eigensystem realization algorithm, the analysis of random responses is done by means of subspace identification methods. On a prototype Hydro-Quebec power system, including SVCs, DC lines, series compensation, and more than 1,100 buses, itmore » is verified that the two approaches are equivalent only when strict requirements are imposed on the pulse length and magnitude. The 10th-order equivalent models derived by random-signal probing allow for effective tuning of decentralized power system stabilizers (PSSs) able to damp both local and very slow inter-area modes.« less

  5. HydroShare: A Platform for Collaborative Data and Model Sharing in Hydrology

    NASA Astrophysics Data System (ADS)

    Tarboton, D. G.; Idaszak, R.; Horsburgh, J. S.; Ames, D. P.; Goodall, J. L.; Couch, A.; Hooper, R. P.; Dash, P. K.; Stealey, M.; Yi, H.; Bandaragoda, C.; Castronova, A. M.

    2017-12-01

    HydroShare is an online, collaboration system for sharing of hydrologic data, analytical tools, and models. It supports the sharing of and collaboration around "resources" which are defined by standardized content types for data formats and models commonly used in hydrology. With HydroShare you can: Share your data and models with colleagues; Manage who has access to the content that you share; Share, access, visualize and manipulate a broad set of hydrologic data types and models; Use the web services application programming interface (API) to program automated and client access; Publish data and models and obtain a citable digital object identifier (DOI); Aggregate your resources into collections; Discover and access data and models published by others; Use web apps to visualize, analyze and run models on data in HydroShare. This presentation will describe the functionality and architecture of HydroShare highlighting its use as a virtual environment supporting education and research. HydroShare has components that support: (1) resource storage, (2) resource exploration, and (3) web apps for actions on resources. The HydroShare data discovery, sharing and publishing functions as well as HydroShare web apps provide the capability to analyze data and execute models completely in the cloud (servers remote from the user) overcoming desktop platform limitations. The HydroShare GIS app provides a basic capability to visualize spatial data. The HydroShare JupyterHub Notebook app provides flexible and documentable execution of Python code snippets for analysis and modeling in a way that results can be shared among HydroShare users and groups to support research collaboration and education. We will discuss how these developments can be used to support different types of educational efforts in Hydrology where being completely web based is of value in an educational setting as students can all have access to the same functionality regardless of their computer.

  6. Tinker, Tory, Wobbler, why? The political economy of electricity restructuring in Ontario, 1995--2003

    NASA Astrophysics Data System (ADS)

    Martin, Charles Francis James

    The Ontario Tories' 42-year hegemony in government (1943-1985) was wrought through clever policies which often utilized Crown institutions to promote prosperity or to oblige or mollify vying interests. Ousted in 1985, though, they used their time in opposition to revise the Tory doctrine. In the 1995 election, the Tories emerged a tougher, more truculent group quite unlike their predecessors. Campaigning on their Common Sense Revolution (CSR) platform, they promised to eliminate red tape and vowed to obliterate all ostensible economic barriers which were impeding commerce in the province. In the CSR, the Tories identified Ontario Hydro (OH), the province's lauded publicly-owned power monopoly, as a troublesome and inefficient Crown entity which required fundamental reform. Portions of OH, they hinted, would likely be sold. Once elected, the Tories worked hurriedly to demolish OH and destroy public power in Ontario. For nearly 100 years, OH proved a pivotal component within the province's political economy for its provision of affordable, reliable power and its function as a policy tool to incite and direct development. A Tory government fought to instigate public power in the early 1900s and, in the late 1900s, a Tory government was fighting vigorously to rescind it. Why would they now renounce Crown power? It is the intent of this thesis to elucidate the Tory government's involvement in the transformation of Ontario's electricity industry from 1995 to 2003. Distinguishing electricity as a special, strategic staple, this thesis uses a pro-state, pro-staples industry political economy approach to discern how and why the Tory government sought to restructure the electricity sector. Essentially, it posits that the onslaught of neoliberalism, the emergence of novel generating technology, and the faltering of OH's nuclear wing all had a huge part to play in provoking the Tory government to initiate its reforms. Their reforms, though, proved too hasty, haughty, and fraught with ambiguity to work properly. While their open, competitive power market and attempts to privatize Hydro One failed horribly, the Tories' energy re-regulation strategy did hold promise to allow the state to retain a prominent role in the power industry.

  7. Hybrid Energy System Design of Micro Hydro-PV-biogas Based Micro-grid

    NASA Astrophysics Data System (ADS)

    Nishrina; Abdullah, A. G.; Risdiyanto, A.; Nandiyanto, ABD

    2017-03-01

    Hybrid renewable energy system is an arrangement of one or more sources of renewable energy and also conventional energy. This paper describes a simulation results of hybrid renewable power system based on the available potential in an educational institution in Indonesia. HOMER software was used to simulate and analyse both in terms of optimization and economic terms. This software was developed through 3 main principles; simulation, optimization, and sensitivity analysis. Generally, the presented results show that the software can demonstrate a feasible hybrid power system as well to be realized. The entire demand in case study area can be supplied by the system configuration and can be met by ¾ of electricity production. So, there are ¼ of generated energy became an excess electricity.

  8. 75 FR 143 - Lockhart Power Company; Notice of Application Accepted for Filing, Soliciting Motions To...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-04

    ... submersible turbine/generator unit in the hydro canal bank and provide for seasonal fluctuations of head pond... generating unit would have an installed capacity of 534 kW and an estimated hydraulic capacity of 280 cfs...

  9. Renewable energy projects in the Dominican Republic

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Viani, B.

    1997-12-01

    This paper describes a US/Dominican Republic program to develop renewable energy projects in the country. The objective is to demonstrate the commercial viability of renewable energy generation projects, primarily small-scale wind and hydropower. Preliminary studies are completed for three micro-hydro projects with a total capacity of 262 kWe, and two small wind power projects for water pumping. In addition wind resource assessment is ongoing, and professional training and technical assistance to potential investors is ongoing. Projects goals include not less than ten small firms actively involved in installation of such systems by September 1998.

  10. Effects of Stern layer conductance on electrokinetic energy conversion in nanofluidic channels.

    PubMed

    Davidson, Christian; Xuan, Xiangchun

    2008-03-01

    A thermo-electro-hydro-dynamic model is developed to analytically account for the effects of Stern layer conductance on electrokinetic energy conversion in nanofluidic channels. The optimum electrokinetic devices performance is dependent on a figure of merit, in which the Stern layer conductance appears as a nondimensional Dukhin number. Such surface conductance is found to significantly reduce the figure of merit and thus the efficiency and power output. This finding may explain why the recently measured electrokinetic devices performances are far below the theoretical predictions where the effects of Stern layer conductance have been ignored.

  11. Evaluating Effects of Stressors from Marine and Hydrokinetic Energy

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Copping, Andrea E.; Blake, Kara M.; Hanna, Luke A.

    2012-09-30

    Potential environmental effects of marine and hydrokinetic (MHK) energy development are not well understood, yet regulatory agencies are required to make decisions in spite of substantial uncertainty about environmental impacts and their long-term consequences. An understanding of risks associated with interactions between MHK installations and aquatic receptors, including animals, habitats, and ecosystems, can help define key uncertainties and focus regulatory actions and scientific studies on interactions of most concern. During FY 2012, Pacific Northwest National Laboratory (PNNL) continued to follow project developments on the two marine and hydrokinetic projects reviewed for Environmental Risk Evaluation System (ERES) screening analysis in FYmore » 2011: a tidal project in the Gulf of Maine using Ocean Renewable Power Company TidGenTM turbines and a wave project planned for the coast of Oregon using Aquamarine Oyster surge devices. The ERES project in FY 2012 also examined two stressor–receptor interactions previously identified through the screening process as being of high importance: 1) the toxicity effects of antifouling coatings on MHK devices on aquatic resources and 2) the risk of a physical strike encounter between an adult killer whale and an OpenHydro turbine blade. The screening-level assessment of antifouling paints and coatings was conducted for two case studies: the Snohomish County Public Utility District No. 1 (SnoPUD) tidal turbine energy project in Admiralty Inlet, Puget Sound, Washington, and the Ocean Power Technologies (OPT) wave buoy project in Reedsport, Oregon. Results suggest minimal risk to aquatic biota from antifouling coatings used on MHK devices deployed in large estuaries or open ocean environments. For the strike assessment of a Southern Resident Killer Whale (SRKW) encountering an OpenHydro tidal turbine blade, PNNL teamed with colleagues from Sandia National Laboratories (SNL) to carry out an analysis of the mechanics and biological consequences of different blade strike scenarios. Results of these analyses found the following: 1) a SRKW is not likely to experience significant tissue injury from impact by an OpenHydro turbine blade; and 2) if whale skin behaves similarly to the materials considered as surrogates for the upper dermal layers of whale skin, it would not be torn by an OpenHydro blade strike. The PNNL/SNL analyses could not provide insight into the potential for more subtle changes to SRKWs from an encounter with a turbine, such as changes in behavior, or inform turbine interactions for other whales or other turbines. These analyses were limited by the available time frame in which results were needed and focused on the mechanical response of whale tissues and bone to blade strike. PNNL proposes that analyses of additional turbine designs and interactions with other marine mammals that differ in size, body conformation, and mass be performed.« less

  12. SIGAR Quarterly Report to the United States Congress

    DTIC Science & Technology

    2016-07-30

    electricity from sources such as mini-hydro turbines in streams, solar panels with battery storage, and wind turbines , but these are still a negligible...power, solar PV [photo-voltaic units], and wind turbines , is the most promising option for feasible, sustainable decentralized rural electrification...informed SIGAR that the installation of a third power-generating turbine at Kajaki Dam should be complete in September 2016—security conditions permitting

  13. Boston Community Energy Study - Zonal Analysis for Urban Microgrids

    DTIC Science & Technology

    2016-03-01

    ordinarily rural systems that have generation assets such as wind turbines (WTs) [14] or photovoltaic (PV) panels [15] that power loads such as lights and...movers powered by internal combustion engines, diesel engines, microturbines, geothermal systems, hydro systems, or wind turbines ; they also could include...can have on urban areas such as New York City. While flooding and wind damaged or destroyed some of the energy infrastructure, all installed

  14. Prognostic Modeling of Valve Degradation within Power Stations

    DTIC Science & Technology

    2014-10-02

    from the University of Strathclyde in 2013. His PhD focuses on condition monitoring and prognostics for tidal turbines , in collaboration with Andritz...Hydro Hammerfest, a leading tidal turbine manufacturer. Victoria M. Catterson is a Lecturer within the Institute for Energy and Environment at the...based method. Case study data is generated through simulation of valves within a 400MW Combined Cycle Gas Turbine power station. High fidelity

  15. Real-time co-simulation of adjustable-speed pumped storage hydro for transient stability analysis

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Mohanpurkar, Manish; Ouroua, Abdelhamid; Hovsapian, Rob

    Pumped storage hydro (PSH) based generation of electricity is a proven grid level storage technique. A new configuration i.e., adjustable speed PSH (AS-PSH) power plant is modeled and discussed in this paper. Hydrodynamic models are created using partial differential equations and the governor topology adopted from an existing, operational AS-PSH unit. Physics-based simulation of both hydrodynamics and power system dynamics has been studied individually in the past. This article demonstrates a co-simulation of an AS-PSH unit between penstock hydrodynamics and power system events in a real-time environment. Co-simulation provides an insight into the dynamic and transient operation of AS-PSH connectedmore » to a bulk power system network. The two modes of AS-PSH operation presented in this paper are turbine and pump modes. A general philosophy of operating in turbine mode is prevalent in the field when the prices of electricity are high and in the pumping mode when prices are low. However, recently there is renewed interest in operating PSH to also provide ancillary services. A real-time co-simulation at sub-second regime of AS-PSH connected to the IEEE 14 bus test system is performed using digital real-time simulator and the results are discussed.« less

  16. Real-time co-simulation of adjustable-speed pumped storage hydro for transient stability analysis

    DOE PAGES

    Mohanpurkar, Manish; Ouroua, Abdelhamid; Hovsapian, Rob; ...

    2017-09-12

    Pumped storage hydro (PSH) based generation of electricity is a proven grid level storage technique. A new configuration i.e., adjustable speed PSH (AS-PSH) power plant is modeled and discussed in this paper. Hydrodynamic models are created using partial differential equations and the governor topology adopted from an existing, operational AS-PSH unit. Physics-based simulation of both hydrodynamics and power system dynamics has been studied individually in the past. This article demonstrates a co-simulation of an AS-PSH unit between penstock hydrodynamics and power system events in a real-time environment. Co-simulation provides an insight into the dynamic and transient operation of AS-PSH connectedmore » to a bulk power system network. The two modes of AS-PSH operation presented in this paper are turbine and pump modes. A general philosophy of operating in turbine mode is prevalent in the field when the prices of electricity are high and in the pumping mode when prices are low. However, recently there is renewed interest in operating PSH to also provide ancillary services. A real-time co-simulation at sub-second regime of AS-PSH connected to the IEEE 14 bus test system is performed using digital real-time simulator and the results are discussed.« less

  17. Demonstration of variable speed permanent magnet generator at small, low-head hydro site

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Brown Kinloch, David

    Small hydro developers face a limited set of bad choices when choosing a generator for a small low-head hydro site. Direct drive synchronous generators are expensive and technically complex to install. Simpler induction generators are higher speed, requiring a speed increaser, which results in inefficiencies and maintenance problems. In addition, both induction and synchronous generators turn at a fixed speed, causing the turbine to run off its peak efficiency curve whenever the available head is different than the designed optimum head.The solution to these problems is the variable speed Permanent Magnet Generators (PMG). At the Weisenberger Mill in Midway, KY,more » a variable speed Permanent Magnet Generator has been installed and demonstrated. This new PMG system replaced an existing induction generator that had a HTD belt drive speed increaser system. Data was taken from the old generator before it was removed and compared to data collected after the PMG system was installed. The new variable speed PMG system is calculated to produce over 96% more energy than the old induction generator system during an average year. This significant increase was primarily due to the PMG generator operating at the correct speed at the maximum head, and the ability for the PMG generator to reduce its speed to lower optimum speeds as the stream flow increased and the net head decreased.This demonstration showed the importance of being able to adjust the speed of fixed blade turbines. All fixed blade turbines with varying net heads could achieve higher efficiencies if the speed can be matched to the optimum speed as the head changes. In addition, this demonstration showed that there are many potential efficiencies that could be realized with variable speed technology at hydro sites where mismatched turbine and generator speeds result in lower power output, even at maximum head. Funding for this project came from the US Dept. of Energy, through Award Number DE-EE0005429.« less

  18. The development of biodiversity conservation measures in China's hydro projects: A review.

    PubMed

    Bai, Ruiqiao; Liu, Xuehua; Liu, Xiaofei; Liu, Lanmei; Wang, Jianping; Liao, Sihui; Zhu, Annah; Li, Zhouyuan

    2017-11-01

    The hydropower capacity of China ranks first in the world and accounts for approximately 20% of the total energy production in the country. While hydropower has substantially contributed to meeting China's renewable energy targets and providing clean energy to rural areas, the development of hydropower in China has been met with significant controversy. Ecologically, hydro projects alter the landscape, with potential impacts to the country's aquatic biodiversity. Over the past four decades in China, various mainstream opinions and misunderstandings have been presented concerning how to alleviate the negative impacts of hydro projects on aquatic ecosystems. This article reviews research concerning potential mitigation measures to enhance aquatic biodiversity conservation in hydro projects in China. Based on the academic attention such research has attracted, three technical measures for aquatic biodiversity conservation are considered: (1) fish passages, (2) restocking efforts and (3) river and lake renovations. This article provides a historical comparison of these three practices in China to demonstrate the advantages and disadvantages of each method. The article also reviews the relevant legislation, regulations and technical guidelines concerning China's hydro projects dating back to 1979. The dynamics in research, publications, and patents concerning these three mitigation measures are summarized to demonstrate their technological developments in the context of legislative and policy advances. Data were gathered through the China Knowledge Resource Integrated Database and the State Intellectual Property Office of the People's Republic of China. Based on the analysis provided, the article recommends an expansion of China's environmental certification system for hydro projects, more robust regional legislation to bolster the national framework, the cooperation between upstream and downstream conservation mechanisms, and better monitoring to determine the efficacy of mitigation measures. Copyright © 2017 Elsevier Ltd. All rights reserved.

  19. Hydro-economic modeling of integrated solutions for the water-energy-land nexus in Africa

    NASA Astrophysics Data System (ADS)

    Parkinson, S.; Kahil, M.; Wada, Y.; Krey, V.; Byers, E.; Johnson, N. A.; Burek, P.; Satoh, Y.; Willaarts, B.; Langan, S.; Riahi, K.

    2017-12-01

    This study focused on the development of the Extended Continental-scale Hydro-economic Optimization model (ECHO) and its application to the analysis of long-term water, energy and land use pathways for Africa. The framework is important because it integrates multi-decadal decisions surrounding investments into new water infrastructure, electric power generation and irrigation technologies. The improved linkages in ECHO reveal synergies between water allocation strategies across sectors and the greenhouse gas emissions resulting from electricity supply. The African case study features a reduced-form transboundary river network and associated environmental flow constraints covering surface and groundwater withdrawals. Interactions between local water constraints and the continental-scale economy are captured in the model through the combination of regional electricity markets. Spatially-explicit analysis of land availability is used to restrict future reservoir expansion. The analysis demonstrates the massive investments required to ensure rapidly expanding water, energy and food demands in Africa aligned with human development objectives are met in a sustainable way. Modeled constraints on environmental flows in line with presumptive ecological guidelines trigger diffusion of energy-intensive water supply technologies in water-stressed regions, with implications for the cost and speed of the electricity sector decarbonization required to achieve climate targets.

  20. Serving the People of the Northwest

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    None, None

    IF YOU LIVE IN THE PACIFIC NORTHWEST, CHANCES ARE YOU USE ELECTRICITY THAT’S MARKETED BY THE BONNEVILLE POWER ADMINISTRATION OR IS TRANSMITTED OVER BPA POWER LINES. Headquartered in Portland, Ore., BPA is a federal agency that markets wholesale electricity and transmission to the region’s utilities as well as to some large industries. BPA provides about one-third of the electricity used in the Northwest and operates over three-fourths of the region’s high-voltage transmission. BPA does not rely on annual appropriations from Congress for its financing. Instead, the agency recovers all of its costs through sales of electricity and transmission services andmore » repays the U.S. Treasury in full with interest for any money it borrows. BPA sells wholesale power at cost rather than charging market prices. The bulk of the power BPA sells is generated at federal hydroelectric dams on the Columbia River, thus providing some of the lowest-cost electricity in the nation. This low-cost, clean power has been a cornerstone of the Northwest economy for decades, stimulating growth and new jobs. As concerns about global climate change are placing a new premium on clean energy, the federal hydro system has become an increasingly valuable resource. In addition to being low cost, electricity produced by the federal hydro system has no greenhouse gas emissions. And this power source is renewable — replenished each year by the region’s rainfall and snowmelt.« less

  1. 78 FR 43196 - Combined Notice of Filings #2

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-19

    ... Fibre Paper and Packaging, Inc., Rumford Falls Hydro LLC, Brookfield Power Piney & Deep Creek LLC... system by clicking on the links or querying the docket number. Any person desiring to intervene or... encouraged. More detailed information relating to filing requirements, interventions, protests, service, and...

  2. 75 FR 16094 - Upper Peninsula Power Company; North American Hydro Holdings, LLC; Notice of Application for...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-31

    ... 18 CFR 385.2001(a)(1)(iii)(2008) and the instructions on the Commission's website under the ``e...://www.ferc.gov/docs-filing/elibrary.asp . Enter the docket number (P-10856-079) in the docket number...

  3. Renewable energy and power cooperation between China and six Latin American nations

    NASA Astrophysics Data System (ADS)

    Xie, Yuetao; Yan, Bingzhong; Zhou, Shichun

    2018-02-01

    China has been entitled the biggest supplier and largest market of renewable energy for the past few years. With One Belt and One Road initiative carrying on, the China’s renewable energy industry is looking for opportunities across the world. Latin America, which has rich renewable energy resources and urge demand for a cleaner and more sustainable energy system, may become an important target market for China. The prospect and potential of renewable energy cooperation between China and Latin America are promising. In this paper, six Latin American nations of varied background were selected as study cases. Their nation profile, energy resources, power market, and energy development trends were analysed, and the cooperation prospect and potential between these nations and China in renewable energy sector were discussed. The results indicate that Argentina and Bolivia are most potential cooperation partners, and project development and equipment manufacturing of non-hydro renewable energy, along with power grid upgrading are the prioritized areas. In addition, recommendations and solutions addressing the issues and challenges incurred in the current bilateral energy cooperation between China and Latin American nations were proposed.

  4. Power Authority calls for wise investment in hydropower

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Yould, E.P.

    Wise investment in hydropower is one of the most valuable long-term economic actions the state of Alaska can take. A review of the hydro projects shows that investigations needed for construction of the Susitna hydroelectric project will be initiated, while Green Lake and Solomon Gulch projects at Sitka and Valdez will enter their second construction season. Swan Lake and Terror Lake hydropower construction for Ketchikan and Kodiak will also be initiated in 1980 followed by Tyee Lake hydropower for Petersburg and Wrangell. Projects still under investigation which may prove feasible for construction in the future are at Cordova, Homer, Seward,more » Bristol Bay, the Tlingit-Haida area, the lower Kuskokwim and Yukon area, and at some smaller rural communities. Other communities may be able to develop wood or peat fueled generation, wile still others might be able to develop small tidal or wind power generation. The Alaska Power Authority is attempting to expedite these projects, and the end result should be a significant degree of electrical energy independence by the end of the next decade.« less

  5. Power generation by high head water in a building using micro hydro turbine-a greener approach.

    PubMed

    M M S R S, Bhargav; V, Ratna Kishore; S P, Anbuudayasankar; K, Balaji

    2016-05-01

    Demand for green energy production is arising all over the world. A lot of emphasis is laid in making the buildings green. Even a small amount of energy savings made contribute to saving the environment. In this study, an idea is proposed and studied to extract power from the high head water in the pipelines of a building. A building of height 15 m is considered for this study. Water flowing in the pipe has sufficient energy to run a micro hydro turbine. The feasibility of producing electrical energy from the energy of pipe water is found. The motivation is to find the feasibility of generating power using a low-cost turbine. The experimental setup consists of micro turbine of 135 mm diameter coupled to a 12-V DC generator; LEDs and resistors are employed to validate the results. The theoretical calculations were presented using the fundamental equations of fluid mechanics. The theoretical results are validated using experimental and numerical results using CFD simulation. In addition, exergy analysis has been carried out to quantify the irreversibilities during the process in the system.

  6. 76 FR 67167 - Riverbank Hydro No. 1 LLC; Qualified Hydro 20 LLC; Lock Hydro Friends Fund XXXVII; Notice of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-31

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project Nos. 14131-000; 14135-000; 14138-000] Riverbank Hydro No. 1 LLC; Qualified Hydro 20 LLC; Lock Hydro Friends Fund XXXVII; Notice of... LLC (Qualified Hydro) and Lock Hydro Friends Fund XXXVI (Lock Hydro) filed preliminary permit...

  7. Numerical Simulation of the Francis Turbine and CAD used to Optimized the Runner Design (2nd).

    NASA Astrophysics Data System (ADS)

    Sutikno, Priyono

    2010-06-01

    Hydro Power is the most important renewable energy source on earth. The water is free of charge and with the generation of electric energy in a Hydroelectric Power station the production of green house gases (mainly CO2) is negligible. Hydro Power Generation Stations are long term installations and can be used for 50 years and more, care must be taken to guarantee a smooth and safe operation over the years. Maintenance is necessary and critical parts of the machines have to be replaced if necessary. Within modern engineering the numerical flow simulation plays an important role in order to optimize the hydraulic turbine in conjunction with connected components of the plant. Especially for rehabilitation and upgrading existing Power Plants important point of concern are to predict the power output of turbine, to achieve maximum hydraulic efficiency, to avoid or to minimize cavitations, to avoid or to minimized vibrations in whole range operation. Flow simulation can help to solve operational problems and to optimize the turbo machinery for hydro electric generating stations or their component through, intuitive optimization, mathematical optimization, parametric design, the reduction of cavitations through design, prediction of draft tube vortex, trouble shooting by using the simulation. The classic design through graphic-analytical method is cumbersome and can't give in evidence the positive or negative aspects of the designing options. So it was obvious to have imposed as necessity the classical design methods to an adequate design method using the CAD software. There are many option chose during design calculus in a specific step of designing may be verified in ensemble and detail form a point of view. The final graphic post processing would be realized only for the optimal solution, through a 3 D representation of the runner as a whole for the final approval geometric shape. In this article it was investigated the redesign of the hydraulic turbine's runner, medium head Francis type, with following value for the most important parameter, the rated specific speed ns.

  8. High flexible Hydropower Generation concepts for future grids

    NASA Astrophysics Data System (ADS)

    Hell, Johann

    2017-04-01

    The ongoing changes in electric power generation are resulting in new requirements for the classical generating units. In consequence a paradigm change in operation of power systems is necessary and a new approach in finding solutions is needed. The presented paper is dealing with the new requirements on current and future energy systems with the focus on hydro power generation. A power generation landscape for some European regions is shown and generation and operational flexibility is explained. Based on the requirements from the Transmission System Operator in UK, the transient performance of a Pumped Storage installation is discussed.

  9. A parallel calibration utility for WRF-Hydro on high performance computers

    NASA Astrophysics Data System (ADS)

    Wang, J.; Wang, C.; Kotamarthi, V. R.

    2017-12-01

    A successful modeling of complex hydrological processes comprises establishing an integrated hydrological model which simulates the hydrological processes in each water regime, calibrates and validates the model performance based on observation data, and estimates the uncertainties from different sources especially those associated with parameters. Such a model system requires large computing resources and often have to be run on High Performance Computers (HPC). The recently developed WRF-Hydro modeling system provides a significant advancement in the capability to simulate regional water cycles more completely. The WRF-Hydro model has a large range of parameters such as those in the input table files — GENPARM.TBL, SOILPARM.TBL and CHANPARM.TBL — and several distributed scaling factors such as OVROUGHRTFAC. These parameters affect the behavior and outputs of the model and thus may need to be calibrated against the observations in order to obtain a good modeling performance. Having a parameter calibration tool specifically for automate calibration and uncertainty estimates of WRF-Hydro model can provide significant convenience for the modeling community. In this study, we developed a customized tool using the parallel version of the model-independent parameter estimation and uncertainty analysis tool, PEST, to enabled it to run on HPC with PBS and SLURM workload manager and job scheduler. We also developed a series of PEST input file templates that are specifically for WRF-Hydro model calibration and uncertainty analysis. Here we will present a flood case study occurred in April 2013 over Midwest. The sensitivity and uncertainties are analyzed using the customized PEST tool we developed.

  10. Climatic Change, Conflict and Peace in Transboundary River Basins - A Theoretical Perspective

    NASA Astrophysics Data System (ADS)

    Siegfried, T. U.; Beck, L.; Koubi, V.; Bernauer, T.

    2011-12-01

    Recent research shows that one of the most significant risk for societal development pertains to water availability and that the greatest risks for unrest stemming from economic deprivation and the erosion of livelihoods is found in transboundary river basins in poor and politically unstable parts of the world. While until now, historic linkages between water scarcity and conflict were weak at best, there is growing fear that environmental change will increasingly lead to an entanglement of conflict and resources dynamics in the future. Where resources are not jointly managed in a cooperative way and resources sharing mechanisms not legislated by sound international institutions and were significant impacts from environmental change are expected, these developments give rise to concern. To study environmental change and conflict interlinkages, we develop a formal hydro-climatological model for transboundary freshwater resources and investigate theoretically how climate change translates into potential for conflict and peace, contingent on configurations of power between riparians. The model accounts for how upstream countries exercise power by using water whereas downstream countries use power to obtain water. We show that equilibrium water allocation outcomes are biased towards the more powerful riparian, and that absolute upstream or downstream river basin dominance are limiting cases of our general model. Our model suggests that the basin-wide conflict potential is always more sensitive to changes in relative power between riparian states than to impacts from climatic changes.

  11. Electromagnetic Devices and Processes in Environment Protection: Post-Conference Materials.

    DTIC Science & Technology

    1994-09-09

    the Response of Power Transmission and Distribution Lines to a Nuclear Detonation at a High Altitude" 5. R. Goleman, M. Pahczyk, M. Pawlot...processes are unfortunately endothermal ones. However, if necessary energy is produced via a C02-free way(e.g. using solar, hydro, wind, nuclear or...POST-CONFERENCE MATERIALS 31 DETERMINING THE RESPONSE OF POWER TRANSMISSION AND DISTRIBUTION LINES TO A NUCLEAR DETONATION AT A HIGH ALTITUDE

  12. 76 FR 64339 - Combined Notice of Filings #1

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-18

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission Combined Notice of Filings 1 Take notice that the Commission received the following electric rate filings: Docket Numbers: ER04-157-033; ER04-714-022; EL05-89-011. Applicants: Bangor Hydro-Electric Company; Florida Power & Light Company New...

  13. 77 FR 20815 - Combined Notice of Filings #1

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-06

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission Combined Notice of Filings 1 Take notice that the Commission received the following electric rate filings: Docket Numbers: ER04-157-034; ER04-714-023; EL05-89-012. Applicants: Bangor Hydro-Electric Company, Florida Power & Light Company--New...

  14. 75 FR 11153 - Free Flow Power Qualified Hydro 22, LLC; Notice of Preliminary Permit Application Accepted for...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-10

    ... water surface elevation of 609 feet mean sea level; (3) an new 54-foot-long by 74-foot-wide powerhouse to contain two new turbine- generator units for a total installed capacity of 5.0 megawatts; (4) a...

  15. Advancing the Explicit Representation of Lake Processes in WRF-Hydro

    NASA Astrophysics Data System (ADS)

    Yates, D. N.; Read, L.; Barlage, M. J.; Gochis, D.

    2017-12-01

    Realistic simulation of physical processes in lakes is essential for closing the water and energy budgets in a coupled land-surface and hydrologic model, such as the Weather Research and Forecasting (WRF) model's WRF-Hydro framework. A current version of WRF-Hydro, the National Water Model (NWM), includes 1,506 waterbodies derived from the National Hydrography Database, each of which is modeled using a level-pool routing scheme. This presentation discusses the integration of WRF's one-dimensional lake model into WRF-Hydro, which is used to estimate waterbody fluxes and thus explicitly represent latent and sensible heat and the mass balance occurring over the lakes. Results of these developments are presented through a case study from Lake Winnebago, Wisconsin. Scalability and computational benchmarks to expand to the continental-scale NWM are discussed.

  16. Device for passive flow control around vertical axis marine turbine

    NASA Astrophysics Data System (ADS)

    Coşoiu, C. I.; Georgescu, A. M.; Degeratu, M.; Haşegan, L.; Hlevca, D.

    2012-11-01

    The power supplied by a turbine with the rotor placed in a free stream flow may be increased by augmenting the velocity in the rotor area. The energy of the free flow is dispersed and it may be concentrated by placing a profiled structure around the bare turbine in order to concentrate more energy in the rotor zone. At the Aerodynamic and Wind Engineering Laboratory (LAIV) of the Technical University of Civil Engineering of Bucharest (UTCB) it was developed a concentrating housing to be used for hydro or aeolian horizontal axis wind turbines, in order to increase the available energy in the active section of turbine rotor. The shape of the concentrating housing results by superposing several aero/hydro dynamic effects, the most important being the one generated by the passive flow control devices that were included in the housing structure. Those concentrating housings may be also adapted for hydro or aeolian turbines with vertical axis. The present paper details the numerical research effectuated at the LAIV to determine the performances of a vertical axis marine turbine equipped with such a concentrating device, in order to increase the energy quantity extracted from the main flow. The turbine is a Darrieus type one with three vertical straight blades, symmetric with respect to the axis of rotation, generated using a NACA4518 airfoil. The global performances of the turbine equipped with the concentrating housing were compared to the same characteristics of the bare turbine. In order to validate the numerical approach used in this paper, test cases from the literature resulting from experimental and numerical simulations for similar situations, were used.

  17. 78 FR 21931 - Pelzer Hydro Company, Inc. Consolidated Hydro Southeast, Inc.; Notice of Intent To File License...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-12

    ...] Pelzer Hydro Company, Inc. Consolidated Hydro Southeast, Inc.; Notice of Intent To File License.... Submitted by: Pelzer Hydro Company, Inc. and Consolidated Hydro Southeast, Inc., both fully owned... at [email protected] . j. Pelzer Hydro Company, Inc. and Consolidated Hydro Southeast, Inc., filed...

  18. Making use of renewable energy

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Johnston, J.C.

    1984-01-01

    This book describes renewable energy projects proposed for the rural areas of developing countries. Topics considered include biogas generation in Zimbabwe, biogas technology for water pumping in Botswana, soil fertility and energy problems in rural development in the Zaire rain forest, international scientific collaboration on biogas technologies for rural development, alcohol from biomass, an ethanol project in Zimbabwe, biomass alcohol and the fuel-food issue, solar water heating in Zimbabwe, absorbent box solar cookers, solar crop drying in Zimbabwe, the use of passive solar energy in Botswana buildings, the potential of mini hydro systems, woodfuel as a potential renewable energy source,more » small-scale afforestation for domestic needs in the communal lands of Zimbabwe, muscle power, the use of human energy in construction, hand-operated water pumps, animal power for water pumping in Botswana, the production of charcoal in Zambia, improving the efficiency of a traditional charcoal-burning Burmese cooking stove, social impacts, non-engineering constraints affecting energy use in a rural area, women and energy, and non-technical factors influencing the establishment of fuels-from-crops industries in developing countries.« less

  19. Nuclear Power as a Basis for Future Electricity Generation

    NASA Astrophysics Data System (ADS)

    Pioro, Igor; Buruchenko, Sergey

    2017-12-01

    It is well known that electrical-power generation is the key factor for advances in industry, agriculture, technology and the level of living. Also, strong power industry with diverse energy sources is very important for country independence. In general, electrical energy can be generated from: 1) burning mined and refined energy sources such as coal, natural gas, oil, and nuclear; and 2) harnessing energy sources such as hydro, biomass, wind, geothermal, solar, and wave power. Today, the main sources for electrical-energy generation are: 1) thermal power - primarily using coal and secondarily - natural gas; 2) “large” hydro power from dams and rivers and 3) nuclear power from various reactor designs. The balance of the energy sources is from using oil, biomass, wind, geothermal and solar, and have visible impact just in some countries. In spite of significant emphasis in the world on using renewables sources of energy, in particular, wind and solar, they have quite significant disadvantages compared to “traditional” sources for electricity generation such as thermal, hydro, and nuclear. These disadvantages include low density of energy, which requires large areas to be covered with wind turbines or photovoltaic panels or heliostats, and dependence of these sources on Mother Nature, i.e., to be unreliable ones and to have low (20 - 40%) or very low (5 - 15%) capacity factors. Fossil-fueled power plants represent concentrated and reliable source of energy. Also, they operate usually as “fast-response” plants to follow rapidly changing electrical-energy consumption during a day. However, due to combustion process they emit a lot of carbon dioxide, which contribute to the climate change in the world. Moreover, coal-fired power plants, as the most popular ones, create huge amount of slag and ash, and, eventually, emit other dangerous and harmful gases. Therefore, Nuclear Power Plants (NPPs), which are also concentrated and reliable source of energy, moreover, the energy source, which does not emit carbon dioxide into atmosphere, are considered as the energy source for basic loads in an electrical grid. Currently, the vast majority of NPPs are used only for electricity generation. However, there are possibilities to use NPPs also for district heating or for desalination of water. In spite of all current advances in nuclear power, NPPs have the following deficiencies: 1) Generate radioactive wastes; 2) Have relatively low thermal efficiencies, especially, watercooled NPPs; 3) Risk of radiation release during severe accidents; and 4) Production of nuclear fuel is not an environment-friendly process. Therefore, all these deficiencies should be addressed in the next generation or Generation-IV reactors. Generation-IV reactors will be hightemperature reactors and multipurpose ones, which include electricity generation, hydrogen cogeneration, process heat, district heating, desalination, etc.

  20. 77 FR 102 - Turnbull Hydro LLC; Notice of Application Accepted for Filing for Exemption for a Small Conduit...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-03

    ... Power Act, 16 U.S.C. 791a-825r. h. Applicant Contact: Ted Sorenson, Sorenson Engineering, 5203 South 11th East, Idaho Falls, ID 83404, (208) 522-8069; Nicholas E. Josten, GeoSense, 2742 Saint Charles Ave...

  1. 2. Photocopied from Photo 11456, Wheelon Station Special Folder, Engineering ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. Photocopied from Photo 11456, Wheelon Station Special Folder, Engineering Dept., Utah Power & Light Co., Salt Lake City, Utah. 'WHEELON HYDRO-ELECTRIC PLANT (7125 KW). INTERIOR OF MAIN BUILDING SHOWING FOUR 1000 KW UNITS. NOV 1914.' - Utah Sugar Company, Wheelon Hydoelectric Plant, Bear River, Fielding, Box Elder County, UT

  2. Contextualized Science for Teaching Science and Technology.

    ERIC Educational Resources Information Center

    Koul, Ravinder; Dana, Thomas M.

    1997-01-01

    Discusses science education in India, arguing that a contextualized curriculum is a powerful means of improvement. The paper presents results from an analysis of the treatment of the nature of science and technology in current Indian textbooks and uses India's controversial Sadar Sarovar Hydro-Electric Project as a case example. (SM)

  3. 76 FR 67178 - Riverbank Hydro No. 15 LLC; Notice of Preliminary Permit Application Accepted for Filing and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-31

    ... Corps. Applicant Contact: Mr. Kuo-Bao Tong, Riverbank Power Corporation, Royal Bank Plaza, South Tower, P.O. Box 166, 200 Bay Street, Suite 3230, Toronto, ON, Canada M5J2J4. (416) 861-0092 x 154. FERC...

  4. 36 CFR 327.30 - Shoreline Management on Civil Works Projects.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... excessive siltation, erosion, rapid dewatering, or exposure to high wind, wave, or current action and/or in..., hydro-electric power stations, work areas, water intake structures, etc. No shoreline use permits will... costs, one year permits should be issued only when the location or nature of the activity requires...

  5. Oblique view of southwest and southeast side of northwest machinery ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Oblique view of southwest and southeast side of northwest machinery house and hydro-electric power house, concrete pylon at upstream entrance to lock in foreground, view towards north - St. Lucie Canal, St. Lucie Lock No. 1, St. Lucie, Cross State Canal, Okeechobee Intracoastal Waterway, Stuart, Martin County, FL

  6. OBLIQUE VIEW OF SOUTHWEST AND SOUTHEAST SIDES OF UPPER GATE ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    OBLIQUE VIEW OF SOUTHWEST AND SOUTHEAST SIDES OF UPPER GATE MACHINERY HOUSE, NORTH OF LOCK, WITH HYDRO-ELECTRIC POWER HOUSE AND DAM IN BACKGROUND, VIEW TOWARD NORTH NORTHWEST - St. Lucie Canal, Lock No. 1, Machinery Houses, St. Lucie, Cross State Canal, Okeechobee Intracoastal Waterway, Stuart, Martin County, FL

  7. Remote-site power generation opportunities for Alaska

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Jones, M.L.

    1997-03-01

    The Energy and Environmental Research Center (EERC) has been working with the Federal Energy Technology Center in Morgantown, West Virginia, to assess options for small, low-cost, environmental acceptable power generation for application in remote areas of Alaska. The goal of this activity was to reduce the use of fuel in Alaskan villages by developing small, low-cost power generation applications. Because of the abundance of high-quality coal throughout Alaska, emphasis was placed on clean coal applications, but other energy sources, including geothermal, wind, hydro, and coalbed methane, were also considered. The use of indigenous energy sources would provide cheaper cleaner power,more » reduce the need for PCE (Power Cost Equalization program) subsidies, increase self-sufficiency, and retain hard currency in the state while at the same time creating jobs in the region. The introduction of economical, small power generation systems into Alaska by US equipment suppliers and technology developers aided by the EERC would create the opportunities for these companies to learn how to engineer, package, transport, finance, and operate small systems in remote locations. All of this experience would put the US developers and equipment supply companies in an excellent position to export similar types of small power systems to rural areas or developing countries. Thus activities in this task that relate to determining the generic suitability of these technologies for other countries can increase US competitiveness and help US companies sell these technologies in foreign countries, increasing the number of US jobs. The bulk of this report is contained in the two appendices: Small alternative power workshop, topical report and Global market assessment of coalbed methane, fluidized-bed combustion, and coal-fired diesel technologies in remote applications.« less

  8. Culinary and pressure irrigation water system hydroelectric generation

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Christiansen, Cory

    Pleasant Grove City owns and operates a drinking water system that included pressure reducing stations (PRVs) in various locations and flow conditions. Several of these station are suitable for power generation. The City evaluated their system to identify opportunities for power generation that can be implemented based on the analysis of costs and prediction of power generation and associated revenue. The evaluation led to the selection of the Battle Creek site for development of a hydro-electric power generating system. The Battle Creek site includes a pipeline that carries spring water to storage tanks. The system utilizes a PRV to reducemore » pressure before the water is introduced into the tanks. The evaluation recommended that the PRV at this location be replaced with a turbine for the generation of electricity. The system will be connected to the utility power grid for use in the community. A pelton turbine was selected for the site, and a turbine building and piping system were constructed to complete a fully functional power generation system. It is anticipated that the system will generate approximately 440,000 kW-hr per year resulting in $40,000 of annual revenue.« less

  9. Peer review statement

    NASA Astrophysics Data System (ADS)

    2010-08-01

    All papers published in this Volume 12 of IOP Conference Series: Earth and Environmental Science have been peer reviewed through processes administered by the editors of the 25th IAHR Symposium on Hydraulic Machinery and Systems proceedings, Professor Romeo Susan-Resiga, Dr Sebastian Muntean and Dr Sandor Bernad. Reviews were conducted by expert referees from the Scientific Committee to the professional and scientific standards expected of a proceedings journal published by IOP Publishing. The members of the Scientific Committee who selected and reviewed the papers included in the Proceedings of the 25th IAHR Symposium on Hydraulic Machinery and Systems are: Anton ANTONTechnical University of Civil Engineering, BucharestRomania François AVELLANEcole Polytechnique Fédérale de LausanneSwitzerland Fidel ARZOLAEDELCAVenezuela Thomas ASCHENBRENNERVoith Hydro Gmb H & Co. KG, HeidenheimGermany Anton BERGANTLitostroj Power d.o.o., LjubljanaSlovenia Gerard BOISENSAM, LilleFrance Hermod BREKKENTNU, TrondheimNorway Stuart COULSON Voith Hydro Inc., YorkUSA Eduard EGUSQUIZAPolytechnical University Catalonia BarcelonaSpain Arpad FAYUniversity of MiskolczHungary Richard FISHERVoith Hydro Inc., York USA Regiane FORTES-PATELLAInstitut Polytechnique de GrenobleFrance Aleksandar GAJICUniversity of BelgradeSerbia Arno GEHRERAndritz Hydro GrazAustria José GONZÁLEZUniversidad de OviedoSpain François GUIBAULTEcole Polytechnique de MontrealCanada Chisachi KATOUniversity of TokyoJapan Kwang-Yong KIMInha University, IncheonKorea Jiri KOUTNIKVoith Hydro Gmb H & Co. KG, HeidenheimGermany Adrian LUNGUDunarea de Jos University of GalatiRomania Christophe NICOLETPower Vision Engineering Sàrl, LausanneSwitzerland Torbjøm K. NIELSENNTNU, TrodheimNorway Michihiro NISHIKyushu Institute of TechnologyJapan Maryse PAGEHydro Quebec IREQ, VarennesCanada Etienne PARKINSONAndritz Hydro LtdSwitzerland František POCHYLYBrno UniversityCzech Republic Stefan RIEDELBAUCHVoith Hydro Gmb H & Co. KG, HeidenheimGermany Albert RUPRECHTUniversity of StuttgartGermany Michel SABOURINAlstom Hydro Canada Inc.Canada Rudolf SCHILLINGTechnische Universität MünchenGermany Qing-Hua SHIDong Fang Electrical Machinery Co.China Aleš SKOTAKCKD Blansko Engineering, a. s.Czech Republic Romeo F. SUSAN-RESIGAPolitehnica University of TimisoaraRomania Geraldo TIAGO FILHOUniversidade Federal de ItajubaBrazil Yoshinobu TSUJIMOTOOsaka UniversityJapan Bart van ESCHTechnische Universiteit EindhovenNetherland Thi C. VUAndritz Hydro Ltd, QuebecCanada Satoshi WATANABEKyushu University, FukuokaJapan Yulin WUTsinghua University, BeijingChina The reviewing process was organized in several steps. First, the 238 abstracts submitted for the symposium were reviewed, and 197 were accepted, with 30 abstracts having recommendations. Second, the authors have submitted 152 full-length papers, and each paper has been reviewed by two referees. The recommendations have been sent back to the authors, in order to prepare the final form or the paper. Third, 118 papers have been received in final form, accounting for the referees recommendations, to be included in the proceedings and to be presented at the symposium.

  10. Hydro-Piezoelectricity: A Renewable Energy Source for Autonomous Underwater Vehicles

    DTIC Science & Technology

    1999-09-30

    having capacities of a few watts to hundreds of kW. Based on a unique Wave Energy Converter ( WEC ) buoy and intelligent power take-off algorithms, the... environmental monitoring. In addition, there will be significant dual use in the commercial sector for power generation in remote locations where the...2.5 meter by 6.5 meter long WEC at the LEO 15 site of Rutgers University. b. Multiple sensor outputs and performance data were reliably

  11. Regional water consumption for hydro and thermal electricity generation in the United States

    DOE PAGES

    Lee, Uisung; Han, Jeongwoo; Elgowainy, Amgad; ...

    2017-05-18

    Water is an essential resource for most electric power generation technologies. Thermal power plants typically require a large amount of cooling water whose evaporation is regarded to be consumed. Hydropower plants result in evaporative water loss from the large surface areas of the storing reservoirs. This paper estimated the regional water consumption factors (WCFs) for thermal and hydro electricity generation in the United States, because the WCFs of these power plants vary by region and water supply and demand balance are of concern in many regions. For hydropower, total WCFs were calculated using a reservoir’s surface area, state-level water evaporation,more » and background evapotranspiration. Then, for a multipurpose reservoir, a fraction of its WCF was allocated to hydropower generation based on the share of the economic valuation of hydroelectricity among benefits from all purposes of the reservoir. For thermal power plants, the variations in WCFs by type of cooling technology, prime mover technology, and by region were addressed. The results show that WCFs for electricity generation vary significantly by region. Finally, the generation-weighted average WCFs of thermoelectricity and hydropower are 1.25 (range of 0.18–2.0) and 16.8 (range of 0.67–1194) L/kWh, respectively, and the generation-weighted average WCF by the U.S. generation mix in 2015 is estimated at 2.18 L/kWh.« less

  12. Regional water consumption for hydro and thermal electricity generation in the United States

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Lee, Uisung; Han, Jeongwoo; Elgowainy, Amgad

    Water is an essential resource for most electric power generation technologies. Thermal power plants typically require a large amount of cooling water whose evaporation is regarded to be consumed. Hydropower plants result in evaporative water loss from the large surface areas of the storing reservoirs. This paper estimated the regional water consumption factors (WCFs) for thermal and hydro electricity generation in the United States, because the WCFs of these power plants vary by region and water supply and demand balance are of concern in many regions. For hydropower, total WCFs were calculated using a reservoir’s surface area, state-level water evaporation,more » and background evapotranspiration. Then, for a multipurpose reservoir, a fraction of its WCF was allocated to hydropower generation based on the share of the economic valuation of hydroelectricity among benefits from all purposes of the reservoir. For thermal power plants, the variations in WCFs by type of cooling technology, prime mover technology, and by region were addressed. The results show that WCFs for electricity generation vary significantly by region. Finally, the generation-weighted average WCFs of thermoelectricity and hydropower are 1.25 (range of 0.18–2.0) and 16.8 (range of 0.67–1194) L/kWh, respectively, and the generation-weighted average WCF by the U.S. generation mix in 2015 is estimated at 2.18 L/kWh.« less

  13. Is rhizosphere remediation sufficient for sustainable revegetation of mine tailings?

    PubMed

    Huang, Longbin; Baumgartl, Thomas; Mulligan, David

    2012-07-01

    Revegetation of mine tailings (fine-grained waste material) starts with the reconstruction of root zones, consisting of a rhizosphere horizon (mostly topsoil and/or amended tailings) and the support horizon beneath (i.e. equivalent to subsoil - mostly tailings), which must be physically and hydro-geochemically stable. This review aims to discuss key processes involved in the development of functional root zones within the context of direct revegetation of tailings and introduces a conceptual process of rehabilitating structure and function in the root zones based on a state transition model. Field studies on the revegetation of tailings (from processing base metal ore and bauxite residues) are reviewed. Particular focus is given to tailings' properties that limit remediation effectiveness. Aspects of root zone reconstruction and vegetation responses are also discussed. When reconstructing a root zone system, it is critical to restore physical structure and hydraulic functions across the whole root zone system. Only effective and holistically restored systems can control hydro-geochemical mobility of acutely and chronically toxic factors from the underlying horizon and maintain hydro-geochemical stability in the rhizosphere. Thereafter, soil biological capacity and ecological linkages (i.e. carbon and nutrient cycling) may be rehabilitated to integrate the root zones with revegetated plant communities into sustainable plant ecosystems. A conceptual framework of system transitions between the critical states of root zone development has been proposed. This will illustrate the rehabilitation process in root zone reconstruction and development for direct revegetation with sustainable plant communities. Sustainable phytostabilization of tailings requires the systematic consideration of hydro-geochemical interactions between the rhizosphere and the underlying supporting horizon. It further requires effective remediation strategies to develop hydro-geochemically stable and biologically functional root zones, which can facilitate the recovery of the microbial community and ecological linkages with revegetated plant communities.

  14. Policies to Promote Non-Hydro Renewable Energy in the United States and Selected Countries

    EIA Publications

    2005-01-01

    This article examines policies designed to encourage the development of non-hydro renewable energy in four countries - Germany, Denmark, the Netherlands, and Japan - and compares the policies enacted in each of these countries to policies that were used in the United States between 1970 and 2003.

  15. Recreational Potential of Kazakhstan and Prospects of Medical Health Tourism in This Country

    ERIC Educational Resources Information Center

    Yessengabylova, Aiman; Bekbulatova, Assem; Suraganova, Sairan; Bissekov, Alken; Zhumanova, Bekarshyn

    2016-01-01

    The present article analyzes the comparative characteristics of the recreational potential of hydro areas of the Republic of Kazakhstan. 20 hydro areas were marked out for comparative assessment of their attractiveness and recreational possibilities of the development of medical health tourism on the basis of balneological resources. The aim of…

  16. Hydro-Thermal Fatigue Resistance Measurements on Polymer Interfaces

    NASA Astrophysics Data System (ADS)

    Gurumurthy, Charan K.; Kramer, Edward J.; Hui, Chung-Yuen

    1998-03-01

    We have developed a new technique based on a fiber optic displacement sensor for rapid determination of hydro-thermal fatigue crack growth rate per cycle (da/dN) of an epoxy/polyimide interface used in flip chip attach microelectronic assembly. The sample is prepared as a trilayered cantilever beam by capillary flow of the epoxy underfill over a polyimide coated metallic beam. During hydro-thermal cycling the crack growth along the interface (from the free end) changes the displacement of this end of the beam and we measure the free end displacement at the lowest temperature in each hydro-thermal cycle. The change in beam displacement is then converted into crack growth rate (da/dN). da/dN depends on the maximum change in the strain energy release rate of the crack and the phase angle in each cycle. The relation between da/dN and maximum strain energy release rate characterizes the fatigue crack growth resistance of the interface. We have developed and used a simple model anhydride cured and a commercially available PMDA/ODA passivation for this study.

  17. Improving hydropower choices via an online and open access tool

    PubMed Central

    Vilela, Thais; Reid, John

    2017-01-01

    This paper describes and validates the HydroCalculator Tool developed by Conservation Strategy Fund. The HydroCalculator Tool allows researchers, policy-makers and citizens to easily assess hydropower feasibility, by calculating traditional financial indicators, such as the levelized cost of energy, as well as greenhouse gas emissions and the economic net present value including emissions costs. Currently, people other than project developers have limited or no access to such information, which stifles informed public debate on electric energy options. Within this context, the use of the HydroCalculator Tool may contribute to the debate, by facilitating access to information. To validate the tool’s greenhouse gas calculations, we replicate two peer-reviewed articles that estimate greenhouse gas emissions from different hydropower plants in the Amazon basin. The estimates calculated by the HydroCalculator Tool are similar to the ones found in both peer-reviewed articles. The results show that hydropower plants can lead to greenhouse gas emissions and that, in some cases, these emissions can be larger than those of alternative energy sources producing the same amount of electricity. PMID:28650968

  18. Improving hydropower choices via an online and open access tool.

    PubMed

    Vilela, Thais; Reid, John

    2017-01-01

    This paper describes and validates the HydroCalculator Tool developed by Conservation Strategy Fund. The HydroCalculator Tool allows researchers, policy-makers and citizens to easily assess hydropower feasibility, by calculating traditional financial indicators, such as the levelized cost of energy, as well as greenhouse gas emissions and the economic net present value including emissions costs. Currently, people other than project developers have limited or no access to such information, which stifles informed public debate on electric energy options. Within this context, the use of the HydroCalculator Tool may contribute to the debate, by facilitating access to information. To validate the tool's greenhouse gas calculations, we replicate two peer-reviewed articles that estimate greenhouse gas emissions from different hydropower plants in the Amazon basin. The estimates calculated by the HydroCalculator Tool are similar to the ones found in both peer-reviewed articles. The results show that hydropower plants can lead to greenhouse gas emissions and that, in some cases, these emissions can be larger than those of alternative energy sources producing the same amount of electricity.

  19. Climate Change Impacts to Hydro Power Reservoir Systems in British Columbia, Canada: Modelling, Validation and Projection of Historic and Future Streamflow and Snowpack

    NASA Astrophysics Data System (ADS)

    Bennett, K. E.; Schnorbus, M.; Werner, A. T.; Berland, A. J.

    2010-12-01

    The British Columbia Hydro Electric Corporation (BC Hydro) has a mandate to provide clean, renewable and reliable sources of hydro-electric power into the future, hence managing those resources in the context of climate change will be an important component of reservoir operational planning in British Columbia. The Pacific Climate Impacts Consortium (www.PacificClimate.org) has implemented the Variable Infiltration Capacity hydrologic model parameterized at 1/16th degree (~32 km2) to provide BC Hydro with future projections of changes to streamflow and snowpack to the 2050s. The headwaters of the Peace, Columbia, and Campbell River basins were selected for study; the Upper Peace River basin (101,000 km2) is a snowmelt-dominated watershed, and the Upper Columbia River Basin (104,000 km2) has a mixed snowmelt-glacier melt runoff regime, with glacier runoff contributing up to 15 to 20% of late summer discharge. The Upper Campbell River watershed (1,200 km2) has a mixed rainfall and snowmelt (hybrid) hydrologic regime. The model has been calibrated using historical streamflow observations and validated against these observations, as well as automated snow pillow measurements. Future streamflow changes are estimated based on eight Global Climate Models (GCMs) from the CMIP3 suite, downscaled using the Bias Correction Spatial Downscaling (BCSD) technique, run under three emissions scenarios (A2, A1B and B1; A1B is specifically reported on herein). Climate impacts by the 2050s in the three watersheds illustrate an increase in annual average temperature and precipitation ranging between +2.2°C to +2.8°C and +2% to +10% depending on basin, and an annual change in streamflow of -1% to +12% for the three watersheds. Changes are more profound on the seasonal time-scale and differ across basins. Summer streamflow in the Upper Campbell River watershed is projected to decline by -60%, where as the Upper Peace and Columbia systems are projected to decline by -25% and -22%, respectively. Streamflow is projected to increase during winter months for all basins, ranging from increases of +54% (Upper Campbell), +77% (Upper Peace) to +94% (Upper Columbia). These changes in streamflow illustrate a shift towards more rainfall dominated systems with lower snowpacks during the winter months, particularly in the Campbell system (shifting from 23% to 13% snow dominated by the 2050s), which is located at a relatively low elevation and proximal to the Pacific Ocean. Shifts in the distribution of water resources, and in particular snowpack reserves, may require BC Hydro to reconsider their operational planning framework for impacted systems.

  20. Real time hydro-metereological hazards monitoring system for the Ravenna municipality

    NASA Astrophysics Data System (ADS)

    Bertoni, W.; Cattarossi, A.; Gonella, M.

    2003-04-01

    The Ravenna municipality (Italy, Emilia Romagna region), through a cooperative agreement with ENI S.p.A’s., AGIP division, is carrying out a research study for the development of a real time monitoring system of hydro-meteorological conditions. The system aims to support the city Crisis Response Unit to provide more efficient support all over the municipal territory that is the largest in Italy with more than 700 km2. The support unit, a GIS computer based application, directly links to a broad range of sources, gathering real time information from a Local Area Model (meteorological data), a Wave Model (sea hydrodynamic circulation), monitoring stations, located partially on the Adriatic sea (AGIP offshore platform, SIMN) and partially over the Ravenna inland (SPDS, SIN). In the first phase, now completed and undergoing testing, this vast and diversified collection of data feeds a number of statistical models with up to 72 hours of forecast capabilities. The GIS application displays actual and forecast sea conditions offshore of Ravenna littorals in addition to actual and forecast flood conditions along the Ravenna Province inland. Model generated data are used for the forecast, which is then calibrated using the measured data. When the predefined warning limits are exceeded, end users are alerted via prerecorded phone messages, SMS, or visually through the direct or remote interaction with the GIS system (remotely accessible via portable computers). In the second stage, the statistical approach will be substituted by a more deterministic approach. A coupled hydrologic-hydraulic model will be used to forecast water stages along rivers and runoff volume along major watersheds. Moreover, already functioning capabilities allows direct control of remote monitoring points (stream and rain gages, etc.) The entire Real Time Monitoring System was developed on a GIS platform. The GEOdatabase, a relational database based on MSDE technology, is the core of the application which revolves around the conceptualization of a Hydro Data Model, a standardized way to store hydraulic based data such as watershed delineation, hydrologic network, monitoring points and time series data. Recent advancement in GIS software technologies and ready to use hydro-meteorological data offer an unprecedented opportunity to customize the GIS application and provide a powerful application to prevent and defeat flood hazards.

  1. Space Power Engineering Problems

    NASA Astrophysics Data System (ADS)

    Senkevich, V. P.

    2002-01-01

    Development of space power engineering in the first half of XXI century shall be aimed at preventing the forthcoming energy crisis and ecological catastrophes. The problem can be solved through using solar energy being perpetual, endless, and ecologically safe. As of now, issues on the development and employment of solar power stations and its beaming to the ground stations in the SHF band are put on the agenda. The most pressing problem is to develop orbital solar reflectors to illuminate towns in the polar regions, agricultural regions, and areas of processing sea products. Space-based technologies can be used to deal with typhoons, green house effects, and "ozone holes". Recently, large, frameless film structures formed by centrifugal forces offer the promise of structures for orbital power plants, reflectors, and solar sails. A big success is achieved in the development of power generating solar array elements of amorphous silicon. These innovations would make the development of orbital solar power plants dozens of times cheaper. Such solar arrays shall be used in the nearest future on heavy communication satellites and the Earth remote sensing platforms for generation of 140-160 kW at a specific power beyond 300 W/kg. The cargo traffic needed to develop and maintain the orbital power plants and reflector systems could be equipped with solar sails as the future low thrust propulsion. In 2000, the mankind witnessed an unexpected beginning of energy crisis along with strong hydro- meteorological events (typhoons, floods) that shocked the USA, the Western Europe, England, Japan, and other countries. The total damage is estimated as 90 billions of dollars. The mankind is approaching a boundary beyond which its further existence would depend on how people would learn to control weather and use ecologically safe power sources. Space technology base on the research potential accumulated in the previous century could serve for the solution of this problem.

  2. Representing Hydrologic Models as HydroShare Resources to Facilitate Model Sharing and Collaboration

    NASA Astrophysics Data System (ADS)

    Castronova, A. M.; Goodall, J. L.; Mbewe, P.

    2013-12-01

    The CUAHSI HydroShare project is a collaborative effort that aims to provide software for sharing data and models within the hydrologic science community. One of the early focuses of this work has been establishing metadata standards for describing models and model-related data as HydroShare resources. By leveraging this metadata definition, a prototype extension has been developed to create model resources that can be shared within the community using the HydroShare system. The extension uses a general model metadata definition to create resource objects, and was designed so that model-specific parsing routines can extract and populate metadata fields from model input and output files. The long term goal is to establish a library of supported models where, for each model, the system has the ability to extract key metadata fields automatically, thereby establishing standardized model metadata that will serve as the foundation for model sharing and collaboration within HydroShare. The Soil Water & Assessment Tool (SWAT) is used to demonstrate this concept through a case study application.

  3. 77 FR 11530 - Riverbank Hydro No. 2, LLC, Lock+ Hydro Friends Fund XXXVI, Qualified Hydro 21, LLC; Notice...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-27

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project Nos. 14130-000, 14137-000, 14134-000] Riverbank Hydro No. 2, LLC, Lock+ Hydro Friends Fund XXXVI, Qualified Hydro 21, LLC; Notice.... 2, LLC for Project No. 14130-000, Lock+ Hydro Friends Fund XXXVI for Project No. 14137-000, and...

  4. 77 FR 13317 - Riverbank Hydro No. 2, LLC, Lock+ Hydro Friends Fund XXXVI, Qualified Hydro 21, LLC; Notice...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-06

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project Nos. 14130-000, 14137-000, 14134-000] Riverbank Hydro No. 2, LLC, Lock+ Hydro Friends Fund XXXVI, Qualified Hydro 21, LLC; Notice... drawing, the order of priority is as follows: 1. Lock+ Hydro Friends Fund XXXVI: Project No. 14137-000. 2...

  5. 75 FR 73064 - Lock Hydro Friends Fund XLI; Allegheny 7 Hydro, LLC; Notice of Competing Preliminary Permit...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-29

    .... 13777-000] Lock Hydro Friends Fund XLI; Allegheny 7 Hydro, LLC; Notice of Competing Preliminary Permit..., 2010, Lock Hydro Friends Fund XLI, and Allegheny 7 Hydro, LLC filed applications, pursuant to section 4.... 7 Projects Lock Hydro Friends Fund XLI's project (Project No. 13736-000) would consist of: (1) Two...

  6. 77 FR 12280 - Riverbank Hydro No. 1, LLC, Lock+ Hydro Friends Fund XXXVII; Qualified Hydro 20, LLC; Notice...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-29

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project Nos. 14131-000, 14138-00, 14135-000] Riverbank Hydro No. 1, LLC, Lock+ Hydro Friends Fund XXXVII; Qualified Hydro 20, LLC; Notice..., the order of priority is as follows: 1. Lock+ Hydro Friends Fund XXXVII, Project No. 14138-000. 2...

  7. 77 FR 9230 - Riverbank Hydro No. 1, LLC; Lock+ Hydro Friends Fund XXXVII; Qualified Hydro 20, LLC; Notice...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-16

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 14131-000; Project No. 14138-000; Project No. 14135-000] Riverbank Hydro No. 1, LLC; Lock+ Hydro Friends Fund XXXVII; Qualified... Hydro No. 1, LLC for Project No. 14131-000, Lock+ Hydro Friends Fund XXXVII for Project No. 14138- 000...

  8. Committees

    NASA Astrophysics Data System (ADS)

    2012-11-01

    Leadership Team of the IAHR Committee for Hydraulic Machinery and Systems Eduard EGUSQUIZA, UPC Barcelona, Spain, Chair François AVELLAN, EPFL-LMH, Switzerland, Past Chair Richard K FISHER, Voith Hydro Inc., USA, Past Chair Fidel ARZOLA, Edelca, Venezuela Michel COUSTON, Alstom Hydro, France Niklas DAHLBÄCKCK, Vatenfall, Sweden Normand DESY, Andritz VA TECH Hydro Ltd., Canada Chisachi KATO, University of Tokyo, Japan Andrei LIPEJ, Turboinstitut, Slovenija Torbjørn NIELSEN, NTNU, Norway Romeo SUSAN-RESIGA, 'Politehnica' University Timisoara, Romania Stefan RIEDELBAUCH, Stuggart University, Germany Albert RUPRECHT, Stuttgart University, Germany Qing-Hua SHI, Dong Fang Electrical Machinery Co., China Geraldo TIAGO, Universidade Federal de Itajubá, Brazil International Advisory Committee Shouqi YUAN (principal) Jiangsu University China QingHua SHI (principal) Dong Fang Electrical Machinery Co. China Fidel ARZOLA EDELCA Venezuela Thomas ASCHENBRENNER Voith Hydro GmbH & Co. KG Germany Anton BERGANT Litostroj Power doo Slovenia B C BHAOYAL Research & Technology Centre India Hermod BREKKE NTNU Norway Stuart COULSON Voith Hydro Inc. USA Paul COOPER Fluid Machinery Research Inc USA V A DEMIANOV Power Machines OJSC Russia Bart van ESCH Technische Universiteit Eindhoven Netherland Arno GEHRER Andritz Hydro Graz Austria Akira GOTO Ebara Corporation Japan Adiel GUINZBURG The Boeing Company USA D-H HELLMANN KSB AG Germany Ashvin HOSANGADI Combustion Research and Flow Technology USA Byung-Sun HWANG Korea Institute of Material Science Korea Toshiaki KANEMOTO Kyushu Institute of Technology Japan Mann-Eung KIM Korean Register of Shipping Korea Jiri KOUTNIK Voith Hydro GmbH & Co. KG Germany Jinkook LEE Eaton Corporation USA Young-Ho LEE Korea Maritime University Korea Woo-Seop LIM Hyosung Goodsprings Inc Korea Jun MATSUI Yokohama National University Japan Kazuyoshi Mitsubishi H I Ltd, Japan MIYAGAWA Christophe NICOLET Power Vision Engineering Srl Switzerland Maryse PAGE Hydro Quebec IREQ, Varennes Canada Etienne PARKINSON Andritz Hydro Ltd. Switzerland B V S S S PRASAD Indian Institute of Technology Madras India Stefan RIEDELBAUCH Stuttgart University Germany Michel SABOURIN Alstom Hydro Canada Inc Canada Bruno SCHIAVELLO Flowserve Corporation USA Katsumasa SHIMMEI Hitachi Ltd Japan Christoph SINGRTüN VDMA Germany Ale? SKOTAK CKD Blansko Engineering, a s Czech Republic Toshiaki SUZUKI Toshiba Corporation Japan Andy C C TAN Queensland University of Technology Australia Geraldo TIAGO FILHO Universidade Federal de Itajuba Brazi Thi C VU Andritz Hydro Ltd Canada Satoshi WATANABE Kyushu University Japan S H WINOTO National University of Singapore Singapore Woo-Seong WOO STX Institute of Technology Korea International Technical Committee François AVELLAN (principal) EPFL-LMH Switzerland Xingqi LUO (principal) Xi'an University of Technology China Martin BÖHLE Kaiserslautern University Germany Gerard BOIS ENSAM France Young-Seok CHOI KITECH Korea Luca d'AGOSTINO University of Pisa Italy Eduard EGUSQUIZA Polytechnical University Catalonia Spain Arpad FAY University of Miskolcz Hungary Richard FISHER Voith Hydro Inc USA Regiane FORTES-PATELLA Institute Polytechnique de Grenoble France Aleksandar GAJIC University of Belgrade Serbia José GONZÁLEZ Universidad de Oviedo Spain François GUIBAULT Ecole Polytechnique de Montreal Canada Toshiaki IKOHAGI Tohoku University Japan Chisachi KATO University of Tokyo Japan Kwang-Yong KIM Inha University Korea Youn-Jea KIM Sungkyunkwan University Korea Smaine KOUIDRI Université Pierre et Marie Curie (Paris 6) France Shengcai LI Warwick University UK Adrian LUNGU Dunarea de Jos University of Galati Romania Torbjøm K NIELSEN NTNU Norway Michihiro NISHI Tsinghua University China Peter PELZ Darmstadt University Germany Frantisek POCHYLY Brno University Czech Republic Albert RUPRECHT University of Stuttgart Germany Rudolf SCHILLING Technische University München Germany Wei SHYY HKUST Hong Kong,China Romeo SUSAN-RESIGA Politehnica University of Timisoara Romania Kazuhiro TANAKA Kyushu Institute of Technology Japan Yoshinobu TSUJIMOTO Osaka University Japan Local Organizing Committee Chairman Yulin WU Tsinghua University Beijing Executive Chairman Zhengwei WANG Tsinghua University Beijing Members Shuliang CAO Tsinghua University Beijing Cichang CHEN South West University of Petroleum Chengdu Hongxun CHEN Shanghai University Shanghai Jiang DAI China Sanxia General Co Yichang Huashu DOU National University of Singapore Singapore Fengqin HAN Huanan University of Sci & Tech Guangzhou Kun LI Hefei Inst of General Machinery Hefei Rennian LI Lanzhou University of Sci & Tech Lanzhou Wanhong LI National Natural Science Foundation of China Beijing Chao LIU Yangzhou University Yangzhou Li LU China Inst of Water Resources and Hydropower Research Beijing Xingqi LUO Xi'an University of Tech Xi'an Zhenyue MA Dalian University of Sci & Tech Dalian Jiegang MU Zhejiang University of Tech Hangzhou Daqing QIN Harbin Electric Machinery Group Harbin Fujun WANG China Agriculture University Beijing Guoyu WANG Beijing Institute of Technology (BIT) Beijing Leqin WANG Zhejiang University Hangzhou Yuzhen WU NERCSPV Beijing Hongyuan XU Tsinghua University Beijing Jiandong YANG Wuhan University Wuhan Minguan YANG Jiangsu University Zhenjiang Shouqi YUAN Jiangsu University Zhenjiang Lefu ZHANG Harbin Electric Machinery Group Harbin Lixiang ZHANG Yunnan University of Sci & Tech Kunming Shengchang ZHANG Zhejiang University of Tech Hangzhou Kun ZHAO China Water & Electric Consulting Corp Beijing Yuan ZHENG Hehai University Nanjing Jianzhong ZHOU Huazhong University of Sci & Tech Wuhan Lingjiu ZHOU China Agriculture University Beijing Hongwu ZHU China Petroleum University Beijing Zuchao ZHU Zhejiang Sci-Tech University Hangzhou Secretaries Shuhong LIU (Academic), liushuhong@tsinghua.edu.cn Xianwu LUO (Registration), luoxw@tsinghua.edu.cn Baoshan ZHU (Finance), bszhu@mail.tsinghua.edu.cn

  9. Energy Storage Systems

    NASA Astrophysics Data System (ADS)

    Elliott, David

    2017-07-01

    As renewable energy use expands there will be a need to develop ways to balance its variability. Storage is one of the options. Presently the main emphasis is for systems storing electrical power in advanced batteries (many of them derivatives of parallel developments in the electric vehicle field), as well as via liquid air storage, compressed air storage, super-capacitors and flywheels, and, the leader so far, pumped hydro reservoirs. In addition, new systems are emerging for hydrogen generation and storage, feeding fuel cell power production. Heat (and cold) is also a storage medium and some systems exploit thermal effects as part of wider energy management activity. Some of the more exotic ones even try to use gravity on a large scale. This short book looks at all the options, their potentials and their limits. There are no clear winners, with some being suited to short-term balancing and others to longer-term storage. The eventual mix adopted will be shaped by the pattern of development of other balancing measures, including smart-grid demand management and super-grid imports and exports.

  10. 78 FR 929 - TransCanada Hydro Northeast Inc.; FirstLight Hydro Generating Company; Notice of Intent To File...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-07

    ... P-1904-073; Project Nos. P- 1889-081 and P-2485-063] TransCanada Hydro Northeast Inc.; FirstLight.... Submitted By: TransCanada Hydro Northeast Inc. (P-1892-026, P- 1855-045, and P-1904-073); FirstLight Hydro... Projects--John S. Howard, Director--FERC Hydro Compliance, FirstLight Hydro Generating Company, Northfield...

  11. Nuclear Regulatory Commission issuances. Volume 47, Number 2

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    NONE

    1998-02-01

    This report includes the issuances received during the specified period from the Commission (CLI), the Atomic Safety and Licensing Boards (LBP), the Administrative Law Judges (ALJ), the Directors` Decisions (DD), and the Decisions on Petitions for Rulemaking (DPRM). They involve: 21st Century Technologies, Inc.; Hydro Resources, Inc.; Northeast Utilities; and Northern States Power Company.

  12. POLLUTION PREVENTION OPPORTUNITY ASSESSMENT OF THE UNITED STATES ARMY CORPS OF ENGINEERS GARRISON DAM HYDRO- ELECTRIC POWERPLANT - RIVERDALE, NORTH DAKOTA

    EPA Science Inventory

    The report describes the results of pollution prevention opportunity assessments conducted at a representative U.S. Army Corps of Engineers civil works dam and hydroelectric power plant. ecommended methods for reducing pollution resulting primarily from the operation of these fac...

  13. A modeling approach to evaluate the impact of conservation practices on runoff and sediments in Sasumua watershed, Kenya

    USDA-ARS?s Scientific Manuscript database

    Degradation of agricultural watersheds often reduces their capacity to provide vital environmental services such as food production, clean potable water, water bodies for recreation and generation of hydro-electric power. Soil and water conservation practices on agricultural lands can enhance the ca...

  14. 50 CFR Table 15 to Part 679 - Gear Codes, Descriptions, and Use

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ..., power gurdy TROLL X X 15 X X All other gear types OTH X X ADF&G GEAR CODES Diving 11 X X Dredge 22 X X Dredge, hydro/mechanical 23 X X Fish ladder/raceway 77 X X Fish wheel 08 X X Gillnet, drift 03 X X...

  15. [Injury to fish by turbine plants].

    PubMed

    Bernoth, E M

    1990-04-01

    In the Federal Republic of Germany, 7% of the electric power is generated by Hydro-electric plants. A water current is used to drive a turbine, to generate electricity. Fish are passively drawn into the turbines by the water flow, or they migrate actively downstream (eels). Fish then may be injured or even killed. The national Countries' Fishery Acts are not sufficient to compel the prevention of fish gaining access to the turbines. To compensate for losses to the fishery, the owners of Hydro power plants can re-stock their water supplies. Superior to the Fishery Acts of the various Countries is the Federal Animal Protection Law. According to its principle, it is not allowed to cause pain, suffering or damage to an animal without a reasonable cause. It cannot be the intention of either the Fishery Acts or the Animal Protection Law to compensate losses in the fish population by re-stocking. On the contrary, the damage has to be prevented in advance. A suitable means to achieve this is the combination of electrified barriers with a bypass for fish.

  16. Negotiating river ecosystems: Impact assessment and conflict mediation in the cases of hydro-power construction

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Karjalainen, Timo P., E-mail: timopauli.karjalainen@oulu.f; Jaervikoski, Timo, E-mail: timo.jarvikoski@oulu.f

    2010-09-15

    In this paper we discuss how the legitimacy of the impact assessment process is a key issue in conflict mediation in environmental impact assessment. We contrast two EIA cases in hydro-power generation plans made for the Ii River, Finland in different decades, and evaluate how impact assessment in these cases has contributed to the creation, mediation and resolution of conflicts. We focus on the elements of distributional and procedural justice that made the former EIA process more legitimate and consensual and the latter more conflictual. The results indicate that it is crucial for conflict mediation to include all the valuesmore » and interests of the parties in the goal-setting process and in the definition and assessment of alternatives. The analysis also indicates that procedural justice is the most important to help the people and groups involved to accept the legitimacy of the impact assessment process: how different parties and their values and interests are recognized, and how participation and distribution of power are organized in an impact assessment process. It is confirmed in this article that SIA may act as a mediator or a forum providing a process through which competing knowledge claims, various values and interests can be discussed and linked to the proposed alternatives and interventions.« less

  17. Optimization of microwave assisted extraction of essential oils from Iranian Rosmarinus officinalis L. using RSM.

    PubMed

    Akhbari, Maryam; Masoum, Saeed; Aghababaei, Fahimeh; Hamedi, Sepideh

    2018-06-01

    In this study, the efficiencies of conventional hydro-distillation and novel microwave hydro-distillation methods in extraction of essential oil from Rosemary officinalis leaves have been compared. In order to attain the best yield and also highest quality of the essential oil in the microwave assisted method, the optimal values of operating parameters such as extraction time, microwave irradiation power and water volume to plant mass ratio were investigated using central composite design under response surface methodology. Optimal conditions for obtaining the maximum extraction yield in the microwave assisted method were predicted as follows: extraction time of 85 min, microwave power of 888 W, and water volume to plant mass ratio of 0.5 ml/g. The extraction yield at these predicted conditions was computed as 0.7756%. The qualities of the obtained essential oils under designed experiments were optimized based on total contents of four major compounds (α-pinene, 1,8-cineole, camphor and verbenone) which determined by gas chromatography equipped with mass spectroscopy (GC-MS). The highest essential oil quality (55.87%) was obtained at extraction time of 68 min; microwave irradiation power of 700 W; and water volume to plant mass ratio of zero.

  18. Rainfall prediction using fuzzy inference system for preliminary micro-hydro power plant planning

    NASA Astrophysics Data System (ADS)

    Suprapty, B.; Malani, R.; Minardi, J.

    2018-04-01

    East Kalimantan is a very rich area with water sources, in the form of river streams that branch to the remote areas. The conditions of natural potency like this become alternative solution for area that has not been reached by the availability of electric energy from State Electricity Company. The river water in selected location (catchment area) which is channelled to the canal, pipeline or penstock can be used to drive the waterwheel or turbine. The amount of power obtained depends on the volume/water discharge and headwater (the effective height between the reservoir and the turbine). The water discharge is strongly influenced by the amount of rainfall. Rainfall is the amount of water falling on the flat surface for a certain period measured, in units of mm3, above the horizontal surface in the absence of evaporation, run-off and infiltration. In this study, the prediction of rainfall is done in the area of East Kalimantan which has 13 watersheds which, in principle, have the potential for the construction of Micro Hydro Power Plant. Rainfall time series data is modelled by using AR (Auto Regressive) Model based on FIS (Fuzzy Inference System). The FIS structure of the training results is then used to predict the next two years rainfall.

  19. 77 FR 58371 - Allegheny Hydro No. 8, L.P., Allegheny Hydro No. 9, L.P., and U.S. Bank National Association...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-20

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 3021-088] Allegheny Hydro No. 8, L.P., Allegheny Hydro No. 9, L.P., and U.S. Bank National Association Allegheny Hydro, LLC... 31, 2012, Allegheny Hydro No. 8, L.P., Allegheny Hydro No. 9, L.P., and U.S. Bank National...

  20. Yakama Nation Renewable Energy Plan

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Rigdon, Phillip

    2016-05-10

    It is the intention of the Yakama Nation to make improvements on the Wapato Irrigation Project (WIP) for the benefit of all stakeholders. Water management, water conservation and water allocation on the Wapato Irrigation Project is equally as important as hydropower. Irrigation will always be the primary purpose of this water system, but the irrigation system can also generate energy. The purpose of this project is the purchase and installation of inflow water turbines to generate an additional one megawatt of hydro-electrical power. The project will occur in two phases, Environmental Assessment and Project Implementation. The core objective for thismore » proposal is to meet the Yakama Nation’s goal in hydroelectric power development. This will include the installation of inflow water turbines on the Wapato Irrigation Project. The Yakama Nation will prepare an Environmental Assessment in preparation to purchase and install new water turbines for hydropower generation of 1 Megawatt. This is a valuable economic development strategy for Yakama Nation that will create new jobs, improve and increase rural electrification, and attract private investments. This water system has an untapped low head/low power potential without the need to construct a new dam. The objective of Phase 1 is to complete an environmental assessment and obtain approval to proceed with installation of the hydroelectric power system.« less

  1. Improvement of seawater salt quality by hydro-extraction and re-crystallization methods

    NASA Astrophysics Data System (ADS)

    Sumada, K.; Dewati, R.; Suprihatin

    2018-01-01

    Indonesia is one of the salt producing countries that use sea water as a source of raw materials, the quality of salt produced is influenced by the quality of sea water. The resulting average salt quality contains 85-90% NaCl. The Indonesian National Standard (SNI) for human salt’s consumption sodium chloride content is 94.7 % (dry base) and for industrial salt 98,5 %. In this study developed the re-crystallization without chemical and hydro-extraction method. The objective of this research to choose the best methods based on efficiency. The results showed that re-crystallization method can produce salt with NaCl content 99,21%, while hydro-extraction method content 99,34 % NaCl. The salt produced through both methods can be used as a consumption and industrial salt, Hydro-extraction method is more efficient than re-crystallization method because re-crystallization method requires heat energy.

  2. TidGen Power System Commercialization Project

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Sauer, Christopher R.; McEntee, Jarlath

    2013-12-30

    ORPC Maine, LLC, a wholly-owned subsidiary of Ocean Renewable Power Company, LLC (collectively ORPC), submits this Final Technical Report for the TidGen® Power System Commercialization Project (Project), partially funded by the U.S. Department of Energy (DE-EE0003647). The Project was built and operated in compliance with the Federal Energy Regulatory Commission (FERC) pilot project license (P-12711) and other permits and approvals needed for the Project. This report documents the methodologies, activities and results of the various phases of the Project, including design, engineering, procurement, assembly, installation, operation, licensing, environmental monitoring, retrieval, maintenance and repair. The Project represents a significant achievement formore » the renewable energy portfolio of the U.S. in general, and for the U.S. marine hydrokinetic (MHK) industry in particular. The stated Project goal was to advance, demonstrate and accelerate deployment and commercialization of ORPC’s tidal-current based hydrokinetic power generation system, including the energy extraction and conversion technology, associated power electronics, and interconnection equipment capable of reliably delivering electricity to the domestic power grid. ORPC achieved this goal by designing, building and operating the TidGen® Power System in 2012 and becoming the first federally licensed hydrokinetic tidal energy project to deliver electricity to a power grid under a power purchase agreement in North America. Located in Cobscook Bay between Eastport and Lubec, Maine, the TidGen® Power System was connected to the Bangor Hydro Electric utility grid at an on-shore station in North Lubec on September 13, 2012. ORPC obtained a FERC pilot project license for the Project on February 12, 2012 and the first Maine Department of Environmental Protection General Permit issued for a tidal energy project on January 31, 2012. In addition, ORPC entered into a 20-year agreement with Bangor Hydro Electric Company on January 1, 2013 for up to 5 megawatts at a price of $215/MWh, escalating at 2.0% per year.« less

  3. Advancing an Information Model for Environmental Observations

    NASA Astrophysics Data System (ADS)

    Horsburgh, J. S.; Aufdenkampe, A. K.; Hooper, R. P.; Lehnert, K. A.; Schreuders, K.; Tarboton, D. G.; Valentine, D. W.; Zaslavsky, I.

    2011-12-01

    Observational data are fundamental to hydrology and water resources, and the way they are organized, described, and shared either enables or inhibits the analyses that can be performed using the data. The CUAHSI Hydrologic Information System (HIS) project is developing cyberinfrastructure to support hydrologic science by enabling better access to hydrologic data. HIS is composed of three major components. HydroServer is a software stack for publishing time series of hydrologic observations on the Internet as well as geospatial data using standards-based web feature, map, and coverage services. HydroCatalog is a centralized facility that catalogs the data contents of individual HydroServers and enables search across them. HydroDesktop is a client application that interacts with both HydroServer and HydroCatalog to discover, download, visualize, and analyze hydrologic observations published on one or more HydroServers. All three components of HIS are founded upon an information model for hydrologic observations at stationary points that specifies the entities, relationships, constraints, rules, and semantics of the observational data and that supports its data services. Within this information model, observations are described with ancillary information (metadata) about the observations to allow them to be unambiguously interpreted and used, and to provide traceable heritage from raw measurements to useable information. Physical implementations of this information model include the Observations Data Model (ODM) for storing hydrologic observations, Water Markup Language (WaterML) for encoding observations for transmittal over the Internet, the HydroCatalog metadata catalog database, and the HydroDesktop data cache database. The CUAHSI HIS and this information model have now been in use for several years, and have been deployed across many different academic institutions as well as across several national agency data repositories. Additionally, components of the HIS have been modified to support data management for the Critical Zone Observatories (CZOs). This paper will present limitations of the existing information model used by the CUAHSI HIS that have been uncovered through its deployment and use, as well as new advances to the information model, including: better representation of both in situ observations from field sensors and observations derived from environmental samples, extensibility in attributes used to describe observations, and observation provenance. These advances have been developed by the HIS team and the broader scientific community and will enable the information model to accommodate and better describe wider classes of environmental observations and to better meet the needs of the hydrologic science and CZO communities.

  4. Calibrating Parameters of Power System Stability Models using Advanced Ensemble Kalman Filter

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Huang, Renke; Diao, Ruisheng; Li, Yuanyuan

    With the ever increasing penetration of renewable energy, smart loads, energy storage, and new market behavior, today’s power grid becomes more dynamic and stochastic, which may invalidate traditional study assumptions and pose great operational challenges. Thus, it is of critical importance to maintain good-quality models for secure and economic planning and real-time operation. Following the 1996 Western Systems Coordinating Council (WSCC) system blackout, North American Electric Reliability Corporation (NERC) and Western Electricity Coordinating Council (WECC) in North America enforced a number of policies and standards to guide the power industry to periodically validate power grid models and calibrate poor parametersmore » with the goal of building sufficient confidence in model quality. The PMU-based approach using online measurements without interfering with the operation of generators provides a low-cost alternative to meet NERC standards. This paper presents an innovative procedure and tool suites to validate and calibrate models based on a trajectory sensitivity analysis method and an advanced ensemble Kalman filter algorithm. The developed prototype demonstrates excellent performance in identifying and calibrating bad parameters of a realistic hydro power plant against multiple system events.« less

  5. Hydropower, an energy source whose time has come again

    NASA Astrophysics Data System (ADS)

    1980-01-01

    Recent price increases in imported oil demonstrate the urgency for the U.S. to rapidly develop its renewable resources. One such renewable resource for which technology is available now is hydropower. Studies indicate that hydropower potential, particularly at existing dam sites, can save the county hundreds of thousands of barrels of oil per day. But problems and constraints-economic, environmental, institutional, and operational-limit is full potential. Federal programs have had little impact on helping to bring hydro projects on line. Specifically, the Department of Energy's Small Hydro Program could do more to overcome hydro constraints and problems through an effective outreach program and more emphasis on demonstration projects.

  6. Blade number impact on pressure and performance of archimedes screw turbine using CFD

    NASA Astrophysics Data System (ADS)

    Maulana, Muhammad Ilham; Syuhada, Ahmad; Nawawi, Muhammad

    2018-02-01

    Many rivers in Indonesia can be used as source of mini/micro hydro power plant using low head turbine. The most suitable type of turbine used in fluid flow with low head is the Archimedes screw turbine. The Archimedes screw hydro turbine is a relative newcomer to the small-scale hydropower that can work efficiently on heads as low as 10 meter. In this study, the performance of Archimedes water turbines that has different blade numbers that are thoroughly evaluated to obtain proper blade configuration. For this purpose, numerical simulations are used to predict the pressure changes that occur along the turbine. The simulation results show that turbines with an amount of two blades have more sloping pressure distribution so that it has better stability.

  7. Theoretical and Experimental Investigations of the Potential of Osmotic Energy for Power Production †

    PubMed Central

    Sharif, Adel O.; Merdaw, Ali A.; Aryafar, Maryam; Nicoll, Peter

    2014-01-01

    This paper presents a study on the potential of osmotic energy for power production. The study includes both pilot plant testing and theoretical modelling as well as cost estimation. A projected cost of £30/MWh of clean electricity could be achieved by using a Hydro-Osmotic Power (HOP) plant if a suitable membrane is used and the osmotic potential difference between the two solutions is greater than 25 bar; a condition that can be readily found in many sites around the world. Results have shown that the membrane system accounts for 50%–80% of the HOP plant cost depending on the salinity difference level. Thus, further development in membrane technology and identifying suitable membranes would have a significant impact on the feasibility of the process and the route to market. As the membrane permeability determines the HOP process feasibility, this paper also describes the effect of the interaction between the fluid and the membrane on the system permeability. It has been shown that both the fluid physical properties as well as the membrane micro-structural parameters need to be considered if further development of the HOP process is to be achieved. PMID:25110959

  8. Theoretical and experimental investigations of the potential of osmotic energy for power production.

    PubMed

    Sharif, Adel O; Merdaw, Ali A; Aryafar, Maryam; Nicoll, Peter

    2014-08-08

    This paper presents a study on the potential of osmotic energy for power production. The study includes both pilot plant testing and theoretical modelling as well as cost estimation. A projected cost of £30/MWh of clean electricity could be achieved by using a Hydro-Osmotic Power (HOP) plant if a suitable membrane is used and the osmotic potential difference between the two solutions is greater than 25 bar; a condition that can be readily found in many sites around the world. Results have shown that the membrane system accounts for 50%-80% of the HOP plant cost depending on the salinity difference level. Thus, further development in membrane technology and identifying suitable membranes would have a significant impact on the feasibility of the process and the route to market. As the membrane permeability determines the HOP process feasibility, this paper also describes the effect of the interaction between the fluid and the membrane on the system permeability. It has been shown that both the fluid physical properties as well as the membrane micro-structural parameters need to be considered if further development of the HOP process is to be achieved.

  9. The Community WRF-Hydro Modeling System Version 4 Updates: Merging Toward Capabilities of the National Water Model

    NASA Astrophysics Data System (ADS)

    McAllister, M.; Gochis, D.; Dugger, A. L.; Karsten, L. R.; McCreight, J. L.; Pan, L.; Rafieeinasab, A.; Read, L. K.; Sampson, K. M.; Yu, W.

    2017-12-01

    The community WRF-Hydro modeling system is publicly available and provides researchers and operational forecasters a flexible and extensible capability for performing multi-scale, multi-physics options for hydrologic modeling that can be run independent or fully-interactive with the WRF atmospheric model. The core WRF-Hydro physics model contains very high-resolution descriptions of terrestrial hydrologic process representations such as land-atmosphere exchanges of energy and moisture, snowpack evolution, infiltration, terrain routing, channel routing, basic reservoir representation and hydrologic data assimilation. Complementing the core physics components of WRF-Hydro are an ecosystem of pre- and post-processing tools that facilitate the preparation of terrain and meteorological input data, an open-source hydrologic model evaluation toolset (Rwrfhydro), hydrologic data assimilation capabilities with DART and advanced model visualization capabilities. The National Center for Atmospheric Research (NCAR), through collaborative support from the National Science Foundation and other funding partners, provides community support for the entire WRF-Hydro system through a variety of mechanisms. This presentation summarizes the enhanced user support capabilities that are being developed for the community WRF-Hydro modeling system. These products and services include a new website, open-source code repositories, documentation and user guides, test cases, online training materials, live, hands-on training sessions, an email list serve, and individual user support via email through a new help desk ticketing system. The WRF-Hydro modeling system and supporting tools which now include re-gridding scripts and model calibration have recently been updated to Version 4 and are merging toward capabilities of the National Water Model.

  10. Influence of seasonal and inter-annual hydro-meteorological variability on surface water fecal coliform concentration under varying land-use composition.

    PubMed

    St Laurent, Jacques; Mazumder, Asit

    2014-01-01

    Quantifying the influence of hydro-meteorological variability on surface source water fecal contamination is critical to the maintenance of safe drinking water. Historically, this has not been possible due to the scarcity of data on fecal indicator bacteria (FIB). We examined the relationship between hydro-meteorological variability and the most commonly measured FIB, fecal coliform (FC), concentration for 43 surface water sites within the hydro-climatologically complex region of British Columbia. The strength of relationship was highly variable among sites, but tended to be stronger in catchments with nival (snowmelt-dominated) hydro-meteorological regimes and greater land-use impacts. We observed positive relationships between inter-annual FC concentration and hydro-meteorological variability for around 50% of the 19 sites examined. These sites are likely to experience increased fecal contamination due to the projected intensification of the hydrological cycle. Seasonal FC concentration variability appeared to be driven by snowmelt and rainfall-induced runoff for around 30% of the 43 sites examined. Earlier snowmelt in nival catchments may advance the timing of peak contamination, and the projected decrease in annual snow-to-precipitation ratio is likely to increase fecal contamination levels during summer, fall, and winter among these sites. Safeguarding drinking water quality in the face of such impacts will require increased monitoring of FIB and waterborne pathogens, especially during periods of high hydro-meteorological variability. This data can then be used to develop predictive models, inform source water protection measures, and improve drinking water treatment. Copyright © 2013 Elsevier Ltd. All rights reserved.

  11. Downstream Variation of Bankfull Geometry for the Continental and Overseas Hydro-Eco-Regions of France.

    NASA Astrophysics Data System (ADS)

    Tamisier, V.; Gob, F.; Thommeret, N.; Bilodeau, C.; Raufaste, S.; Kreutzenberger, K.

    2016-12-01

    Bankfull channel geometry is a fundamental and widely used concept in hydrology, fluvial geomorphology, and ecosystem studies. We develop and compare downstream hydraulic geometry relationships for bankfull channel width (w) and depth (d) as a function of drainage area A, respectively w=aAb (DHGwA) and d=cAf (DHGdA), for the 12 of the 21 French Hydro-Eco-Regions which are defined in terms of climate, topography and geology. The models have been built from a database (CARHYCE) that includes 1500 river reaches for which a unique standardized field protocol was used. River reach morphology was described based on a survey of 15 cross-sections spaced at intervals of one bankfull width. Sediment size and riverine vegetation were also measured and characterized. This database covers a wide range of French river diversity in terms of geomorphic types and anthropogenic impacts. Sampled stream reaches range from 1 to 70 000 km² in drainage area, 1 to 320 m in bankfull width and 0.3 to 8.5 m in bankfull depth. Approximately 500 poorly disturbed reaches were identified from several indices of disturbance at reach and basin scale (large dams, urbanization, channelization, etc.). For these reference sites, drainage areas display strong power-law relationships with both the width and the depth in most Hydro-Eco-Regions, with coefficients of determination (R²) ranging from 0.73 to 0.91 for DHGwA and from 0.57 to 0.77 for DHGdA (p-value < 0.001, t-test). The DHG exponent b and f ranges from 0.36 to 0.5 for DHGwA and from 0.21 to 0.3 for DHGdA. This implies that widths increase more strongly than depths with increasing drainage areas. The relative position of the models are compared to the national model and discussed with regard to the geologic, climatic and topographic characteristics. In Hydro-Eco-Regions which exhibit poor DHG relationships, the role of spatial variability in natural controls (climate, topography and geology) is discussed. Finally, reaches identified as potentially disturbed by human activities are compared to the reference models.

  12. 77 FR 37035 - Goose River Hydro, Inc.; Independence Hydro, LLC; Notice of Application for Transfer of License...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-20

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 2804-027] Goose River Hydro, Inc.; Independence Hydro, LLC; Notice of Application for Transfer of License, and Soliciting Comments and Motions to Intervene On June 6, 2012, Goose River Hydro, Inc. (transferor) and Independence Hydro...

  13. 76 FR 73612 - Lock Hydro Friends Fund XVIII; Upper Hydroelectric LLC; FFP Project 95 LLC; Riverbank Hydro No...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-29

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project Nos. 14261-000; 14268-000; 14277-000; 14281-000] Lock Hydro Friends Fund XVIII; Upper Hydroelectric LLC; FFP Project 95 LLC... Friends Fund XVIII (Lock Hydro), Upper Hydroelectric LLC (Upper Hydro), Riverbank Hydro No. 25 LLC...

  14. 76 FR 67175 - Riverbank Hydro No. 2 LLC, Lock Hydro Friends Fund XXXVI, Arkansas Electric Cooperative Corp...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-31

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project Nos. 14130-000; 14137-000; 14149-000] Riverbank Hydro No. 2 LLC, Lock Hydro Friends Fund XXXVI, Arkansas Electric Cooperative Corp... Lock Hydro Friends Fund XXXVI (Lock Hydro) and on April 11, 2011, Arkansas Electric Cooperative Corp...

  15. 76 FR 67171 - Solia 7 Hydroelectric LLC; Riverbank Hydro No. 20 LLC; Lock Hydro Friends Fund XLIII; FFP Project...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-31

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project Nos. 14163-000; 14174-000; 14181-000; 14195-000] Solia 7 Hydroelectric LLC; Riverbank Hydro No. 20 LLC; Lock Hydro Friends Fund... LLC (Solia), and Riverbank Hydro No. 20 LLC (Riverbank), and on May 3, 2011, Lock Hydro Friends Fund...

  16. 77 FR 13316 - FFP Project 91, LLC, Riverbank Hydro No. 23, LLC, Lock+ Hydro Friends Fund III; Notice Announcing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-06

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project Nos. 14275-000, 14279-000, 14282-000] FFP Project 91, LLC, Riverbank Hydro No. 23, LLC, Lock+ Hydro Friends Fund III; Notice.... 2. Riverbank Hydro No. 23, LLC: Project No. 14279-000. 3. Lock+ Hydro Friends Fund III: Project No...

  17. 76 FR 74779 - SV Hydro LLC; Coffeeville LLC; FFP Project 99 LLC; Lock Hydro Friends Fund XIV; Notice of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-01

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project Nos. 14298-000; 14299-000; 14301-000; 14302-000] SV Hydro LLC; Coffeeville LLC; FFP Project 99 LLC; Lock Hydro Friends Fund XIV... (Coffeeville), FFP Project 99 LLC (FFP 99), and Lock Hydro Friends Fund XIV (Lock Hydro) filed preliminary...

  18. 76 FR 73616 - Lock Hydro Friends Fund VIII, FFP Project 92 LLC, Riverbank Hydro No. 24 LLC; Notice of Competing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-29

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project Nos. 14262-000; 14276-000; 14280-000] Lock Hydro Friends Fund VIII, FFP Project 92 LLC, Riverbank Hydro No. 24 LLC; Notice of..., and Competing Applications On September 1, 2011, Lock Hydro Friends Fund VIII (Lock Hydro), FFP...

  19. 76 FR 67174 - Solia 2 Hydroelectric LLC; Riverbank Hydro No. 7 LLC; Lock Hydro Friends Fund XXXVIII Notice of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-31

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project Nos. 14157-000; 14161-000; 14184-000] Solia 2 Hydroelectric LLC; Riverbank Hydro No. 7 LLC; Lock Hydro Friends Fund XXXVIII Notice.... 7 LLC (Riverbank) and on May 3, 2011, Lock Hydro Friends Fund XXXVIII (Lock Hydro) filed preliminary...

  20. 76 FR 73615 - FFP Project 91 LLC; Riverbank Hydro No. 23 LLC; Lock Hydro Friends Fund III; Notice of Competing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-29

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project Nos. 14275-000; 14279-000; 14282-000] FFP Project 91 LLC; Riverbank Hydro No. 23 LLC; Lock Hydro Friends Fund III; Notice of... LLC (Riverbank), and Lock Hydro Friends Fund III (Lock Hydro), filed preliminary permit applications...

  1. 76 FR 67720 - Lock+ Hydro Friends Fund XXXV; Riverbank Hydro No. 4, LLC; Notice Announcing Filing Priority for...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-02

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 14136-000; Project No. 14139-000] Lock+ Hydro Friends Fund XXXV; Riverbank Hydro No. 4, LLC; Notice Announcing Filing Priority... follows: 1. Lock+ Hydro Friends Fund XXXV--Project No. 14136-000 2. Riverbank Hydro No. 4, LLC--Project No...

  2. 76 FR 67170 - Riverbank Hydro No. 12 LLC; Lock Hydro Friends Fund XXXVI; Notice of Competing Preliminary Permit...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-31

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project Nos. 14175-000; 14183-000] Riverbank Hydro No. 12 LLC; Lock Hydro Friends Fund XXXVI; Notice of Competing Preliminary Permit... May 2, 2011, Riverbank Hydro No. 12 LLC (Riverbank), and on May 3, 2011, Lock Hydro Friends Fund XXXVI...

  3. 76 FR 67168 - Riverbank Hydro No. 19 LLC; Lock Hydro Friends Fund XXXIV; FFP Project 59 LLC; Notice of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-31

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project Nos. 14176-000, 14188-000, 14200-000] Riverbank Hydro No. 19 LLC; Lock Hydro Friends Fund XXXIV; FFP Project 59 LLC; Notice of..., Lock Hydro Friends Fund XXXIV (Lock Hydro), and FFP Project 59 LLC (FFP 59) filed preliminary permit...

  4. Reliability and economy -- Hydro electricity for Iran

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Jahromi-Shirazi, M.J.; Zarbakhsh, M.H.

    1998-12-31

    Reliability is the probability that a device or system will perform its function adequately, for the period of time intended, under the operating conditions intended. Reliability and economy are two important factors in operating any system, especially in power generation. Due to the high rate in population growth in Iran, the experts have estimated that the demand for electricity will be about 63,000 MW in the next 25 years, the installed power is now about 26,000 MW. Therefore, the energy policy decision made in Iran is to go to power generation by hydroelectric plants because of reliability, availability of watermore » resources and the economics of hydroelectric power.« less

  5. Continental-scale assessment of long-term trends in wet deposition trajectories: Role of anthropogenic and hydro-climatic drivers

    NASA Astrophysics Data System (ADS)

    Park, J.; Gall, H. E.; Niyogi, D.; Rao, S.

    2012-12-01

    The global trend of increased urbanization, and associated increased intensity of energy and material consumption and waste emissions, has contributed to shifts in the trajectories of aquatic, terrestrial, and atmospheric environments. Here, we focus on continental-scale spatiotemporal patterns in two atmospheric constituents (nitrate and sulfate), whose global biogeochemical cycles have been dramatically altered by emissions from mobile and fixed sources in urbanized and industrialized regions. The observed patterns in wet deposition fluxes of nitrate and sulfate are controlled by (1) natural hydro-climatic forcing, and (2) anthropogenic forcing (emissions and regulatory control), both of which are characterized by stochasticity and non-stationarity. We examine long-term wet deposition records in the U.S., Europe, and East Asia to evaluate how anthropogenic and natural forcing factors jointly contributed to the shifting temporal patterns of wet deposition fluxes at continental scales. These data offer clear evidence for successful implementation of regulatory controls and widespread adoption of technologies contributed to improving water quality and mitigation of adverse ecological impacts. We developed a stochastic model to project the future trajectories of wet deposition fluxes in emerging countries with fast growing urban areas. The model generates ellipses within which projected wet deposition flux trajectories are inscribed, similar to the trends in observational data. The shape of the ellipses provides information regarding the relative dominance of anthropogenic (e.g., industrial and urban emissions) versus hydro-climatic drivers (e.g., rainfall patterns, aridity index). Our analysis facilitates projections of the trajectory shift as a result of urbanization and other land-use changes, climate change, and regulatory enforcement. We use these observed data and the model to project likely trajectories for rapidly developing countries (BRIC), with a particular emphasis on various approaches to sustainable economic development. Brazil represents the case of shifts to alternate energy sources (bioethanol and hydroelectric power), while India and China are on the fossil fuel dependent trajectories, the same that North America and Europe had followed. Rapid increases in population, urbanization, and economic development of African cities presents an interesting case study for choices available for sustainable development, similar to that of Brazil rather than that followed by India and China. Coordinated air quality monitoring at urban and reference sites needs to be established to follow the fast-changing conditions.

  6. 78 FR 70549 - Lock+ Hydro Friends Fund III, LLC, Western Minnesota Municipal Power Agency; Notice Announcing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-26

    ..., Illinois, and the City of West Alton, in St. Charles County, Missouri. The applications were filed by Lock... Commission, or her designee, will conduct a random drawing to determine the filing priority of the applicants identified in this notice. The Commission will select between the two competing permit applications as...

  7. 78 FR 62350 - Lock+ Hydro Friends Fund III, LLC; Western Minnesota Municipal Power Agency; Notice Announcing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-18

    ..., Illinois, and the city of West Alton, in St. Charles County, Missouri. The applications were filed by Lock... Commission, or her designee, will conduct a random drawing to determine the filing priority of the applicants identified in this notice. The Commission will select between the two competing permit applications as...

  8. Numerical and experimental study of the pressure pulsations at the free discharge of water through the turbine

    NASA Astrophysics Data System (ADS)

    Platonov, D. V.

    2017-09-01

    The free discharge through the turbine is applied in the course of construction of hydro power plant or in case of excessive water inflow during floods or emergency situation. The experimental and numerical investigation of flow-induced pressure pulsation in hydraulic turbine draft tube at free discharge was performed.

  9. 78 FR 52172 - Don W. Gilbert Hydro Power, LLC; Notice of Availability of Environmental Assessment

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-22

    ... kilowatts (kW) and would utilize the flow from several unnamed springs that converge into an unnamed channel... to the existing stream channel that flows into the Bear River; (5) a 150-foot-long, 480-volt... Construction Implement industry-standard erosion control measures to minimize erosion and sedimentation; Stop...

  10. 77 FR 64973 - Don W. Gilbert Hydro Power, LLC; Notice of Application Accepted for Filing With the Commission...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-24

    ... water quality certification; (2) a copy of the request for certification, including proof of the date on which the certifying agency received the request; or (3) evidence of waiver of water quality...-foot-diameter, 700-foot-long partially buried steel or plastic penstock; (3) a powerhouse containing...

  11. Distant view from downstream of lock with southeast machinery house, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Distant view from downstream of lock with southeast machinery house, SF 109, and timber guide wall on left, exterior view of closed lower lock gates and hydro-electric power house and dam in background, view towards west - St. Lucie Canal, St. Lucie Lock No. 1, St. Lucie, Cross State Canal, Okeechobee Intracoastal Waterway, Stuart, Martin County, FL

  12. Tree ring-based chronology of hydro-geomorphic processes as a fundament for identification of hydro-meteorological triggers in the Hrubý Jeseník Mountains (Central Europe).

    PubMed

    Tichavský, Radek; Šilhán, Karel; Tolasz, Radim

    2017-02-01

    Hydro-geomorphic processes have significantly influenced the recent development of valley floors, river banks and depositional forms in mountain environments, have caused considerable damage to manmade developments and have disrupted forest management. Trees growing along streams are affected by the transported debris mass and provide valuable records of debris flow/flood histories in their tree-ring series. Dendrogeomorphic approaches are currently the most accurate methods for creating a chronology of the debris flow/flood events in forested catchments without any field-monitoring or a stream-gauging station. Comprehensive studies focusing on the detailed chronology of hydro-geomorphic events and analysis of meteorological triggers and weather circulation patterns are still lacking for the studied area. We provide a spatio-temporal reconstruction of hydro-geomorphic events in four catchments of the Hrubý Jeseník Mountains, Czech Republic, with an analysis of their triggering factors using meteorological data from four nearby rain gauges. Increment cores from 794 coniferous trees (Picea abies [L.] Karst.) allowed the identification of 40 hydro-geomorphic events during the period of 1889-2013. Most of the events can be explained by extreme daily rainfalls (≥50mm) occurring in at least one rain gauge. However, in several cases, there was no record of extreme precipitation at rain gauges during the debris flow/flood event year, suggesting extremely localised rainstorms at the mountain summits. We concluded that the localisation, intensity and duration of rainstorms; antecedent moisture conditions; and amount of available sediments all influenced the initiation, spatial distribution and characteristics of hydro-geomorphic events. The most frequent synoptic situations responsible for the extreme rainfalls (1946-2015) were related to the meridional atmospheric circulation pattern. Our results enhance current knowledge of the occurrences and triggers of debris flows/floods in the Central European mountains in transition between temperate oceanic and continental climatic conditions and may prompt further research of these phenomena in the Eastern Sudetes in general. Copyright © 2016 Elsevier B.V. All rights reserved.

  13. 76 FR 67172 - Riverbank Hydro No. 16 LLC, Lock Hydro Friends Fund IV, FFP Project 55 LLC; Notice of Competing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-31

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project Nos. 14167-000, 14185-000 and 14196-000] Riverbank Hydro No. 16 LLC, Lock Hydro Friends Fund IV, FFP Project 55 LLC; Notice of..., Lock Hydro Friends Fund IV (Lock Hydro), and FFP Project 55 LLC (FFP 55) filed preliminary permit...

  14. 76 FR 67169 - Riverbank Hydro No. 10 LLC Lock Hydro Friends Fund XL FFP Project 56 LLC; Notice of Competing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-31

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project Nos. 14164-000; 14189-000; 14198-000] Riverbank Hydro No. 10 LLC Lock Hydro Friends Fund XL FFP Project 56 LLC; Notice of Competing... Hydro Friends Fund XL (Lock Hydro), and FFP Project 56 LLC (FFP 56) filed preliminary permit...

  15. 76 FR 4892 - Lock+ Hydro Friends Fund XXXIX, FFP Missouri 3, LLC, Allegheny 3 Hydro, LLC, Three Rivers Hydro...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-27

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project Nos. 13740-000, 13749-000, 13775-000, 13781-000] Lock+ Hydro Friends Fund XXXIX, FFP Missouri 3, LLC, Allegheny 3 Hydro, LLC, Three..., Pennsylvania.\\1\\ The applications were filed by Lock+ Hydro Friends Fund XXXIX, for Project No. 13740-000, FFP...

  16. 76 FR 67169 - Solia 9 Hydroelectric LLC Riverbank Hydro No. 17 LLC Lock Hydro Friends Fund XLI FFP Project 54...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-31

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project Nos. 14162-000; 14173-000; 14182-000; 14192-000] Solia 9 Hydroelectric LLC Riverbank Hydro No. 17 LLC Lock Hydro Friends Fund XLI... LLC (Solia), and Riverbank Hydro No. 17 LLC (Riverbank), and on May 3, 2011, Lock Hydro Friends Fund...

  17. 76 FR 6612 - Lock+ Hydro Friends Fund XL; FFP Missouri 4, LLC; Allegheny 4 Hydro, LLC; Three Rivers Hydro, LLC...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-07

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 13746-000; Project No. 13750-000; Project No. 13776-000; Project No. 13782-000] Lock+ Hydro Friends Fund XL; FFP Missouri 4..., LLC--Project No. 13750-000 3. Allegheny 4 Hydro, LLC--Project No. 13776-000 4. Lock+ Hydro Friends...

  18. 76 FR 67176 - Riverbank Hydro No. 13 LLC, Lock Hydro Friends Fund XXXIV, FFP Project 55 LLC; Notice of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-31

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project Nos. 14168-000, 14187-000 and 14199-000] Riverbank Hydro No. 13 LLC, Lock Hydro Friends Fund XXXIV, FFP Project 55 LLC; Notice of..., Lock Hydro Friends Fund XXXIV (Lock Hydro), and FFP Project 55 LLC (FFP 55) filed preliminary permit...

  19. 76 FR 67167 - Riverbank Hydro No. 6 LLC, Lock Hydro Friends Fund XLVII, FFP Project 52 LLC; Notice of Competing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-31

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project Nos. 14172-000, 14178-000 and 14190-000] Riverbank Hydro No. 6 LLC, Lock Hydro Friends Fund XLVII, FFP Project 52 LLC; Notice of..., Lock Hydro Friends Fund XLVII (Lock Hydro), and FFP Project 52 LLC (FFP 52) filed preliminary permit...

  20. 76 FR 67172 - Riverbank Hydro No. 8 LLC Lock Hydro Friends Fund XLIV FFP Project 51 LLC; Notice of Competing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-31

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [14160-000; 14179-000; 14194-000] Riverbank Hydro No. 8 LLC Lock Hydro Friends Fund XLIV FFP Project 51 LLC; Notice of Competing Preliminary... Applications On May 2, 2011, Riverbank Hydro No. 8 LLC (Riverbank), and on May 3, 2011, Lock Hydro Friends Fund...

  1. HydroShare for iUTAH: Collaborative Publication, Interoperability, and Reuse of Hydrologic Data and Models for a Large, Interdisciplinary Water Research Project

    NASA Astrophysics Data System (ADS)

    Horsburgh, J. S.; Jones, A. S.

    2016-12-01

    Data and models used within the hydrologic science community are diverse. New research data and model repositories have succeeded in making data and models more accessible, but have been, in most cases, limited to particular types or classes of data or models and also lack the type of collaborative, and iterative functionality needed to enable shared data collection and modeling workflows. File sharing systems currently used within many scientific communities for private sharing of preliminary and intermediate data and modeling products do not support collaborative data capture, description, visualization, and annotation. More recently, hydrologic datasets and models have been cast as "social objects" that can be published, collaborated around, annotated, discovered, and accessed. Yet it can be difficult using existing software tools to achieve the kind of collaborative workflows and data/model reuse that many envision. HydroShare is a new, web-based system for sharing hydrologic data and models with specific functionality aimed at making collaboration easier and achieving new levels of interactive functionality and interoperability. Within HydroShare, we have developed new functionality for creating datasets, describing them with metadata, and sharing them with collaborators. HydroShare is enabled by a generic data model and content packaging scheme that supports describing and sharing diverse hydrologic datasets and models. Interoperability among the diverse types of data and models used by hydrologic scientists is achieved through the use of consistent storage, management, sharing, publication, and annotation within HydroShare. In this presentation, we highlight and demonstrate how the flexibility of HydroShare's data model and packaging scheme, HydroShare's access control and sharing functionality, and versioning and publication capabilities have enabled the sharing and publication of research datasets for a large, interdisciplinary water research project called iUTAH (innovative Urban Transitions and Aridregion Hydro-sustainability). We discuss the experiences of iUTAH researchers now using HydroShare to collaboratively create, curate, and publish datasets and models in a way that encourages collaboration, promotes reuse, and meets funding agency requirements.

  2. Recovery Act. Development and Validation of an Advanced Stimulation Prediction Model for Enhanced Geothermal System

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Gutierrez, Marte

    The research project aims to develop and validate an advanced computer model that can be used in the planning and design of stimulation techniques to create engineered reservoirs for Enhanced Geothermal Systems. The specific objectives of the proposal are to: 1) Develop a true three-dimensional hydro-thermal fracturing simulator that is particularly suited for EGS reservoir creation. 2) Perform laboratory scale model tests of hydraulic fracturing and proppant flow/transport using a polyaxial loading device, and use the laboratory results to test and validate the 3D simulator. 3) Perform discrete element/particulate modeling of proppant transport in hydraulic fractures, and use the resultsmore » to improve understand of proppant flow and transport. 4) Test and validate the 3D hydro-thermal fracturing simulator against case histories of EGS energy production. 5) Develop a plan to commercialize the 3D fracturing and proppant flow/transport simulator. The project is expected to yield several specific results and benefits. Major technical products from the proposal include: 1) A true-3D hydro-thermal fracturing computer code that is particularly suited to EGS, 2) Documented results of scale model tests on hydro-thermal fracturing and fracture propping in an analogue crystalline rock, 3) Documented procedures and results of discrete element/particulate modeling of flow and transport of proppants for EGS applications, and 4) Database of monitoring data, with focus of Acoustic Emissions (AE) from lab scale modeling and field case histories of EGS reservoir creation.« less

  3. Recovery Act. Development and Validation of an Advanced Stimulation Prediction Model for Enhanced Geothermal Systems

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Gutierrez, Marte

    2013-12-31

    This research project aims to develop and validate an advanced computer model that can be used in the planning and design of stimulation techniques to create engineered reservoirs for Enhanced Geothermal Systems. The specific objectives of the proposal are to; Develop a true three-dimensional hydro-thermal fracturing simulator that is particularly suited for EGS reservoir creation; Perform laboratory scale model tests of hydraulic fracturing and proppant flow/transport using a polyaxial loading device, and use the laboratory results to test and validate the 3D simulator; Perform discrete element/particulate modeling of proppant transport in hydraulic fractures, and use the results to improve understandmore » of proppant flow and transport; Test and validate the 3D hydro-thermal fracturing simulator against case histories of EGS energy production; and Develop a plan to commercialize the 3D fracturing and proppant flow/transport simulator. The project is expected to yield several specific results and benefits. Major technical products from the proposal include; A true-3D hydro-thermal fracturing computer code that is particularly suited to EGS; Documented results of scale model tests on hydro-thermal fracturing and fracture propping in an analogue crystalline rock; Documented procedures and results of discrete element/particulate modeling of flow and transport of proppants for EGS applications; and Database of monitoring data, with focus of Acoustic Emissions (AE) from lab scale modeling and field case histories of EGS reservoir creation.« less

  4. Experimental and numerical study of impact of voltage fluctuate, flicker and power factor wave electric generator to local distribution

    NASA Astrophysics Data System (ADS)

    Hadi, Nik Azran Ab; Rashid, Wan Norhisyam Abd; Hashim, Nik Mohd Zarifie; Mohamad, Najmiah Radiah; Kadmin, Ahmad Fauzan

    2017-10-01

    Electricity is the most powerful energy source in the world. Engineer and technologist combined and cooperated to invent a new low-cost technology and free carbon emission where the carbon emission issue is a major concern now due to global warming. Renewable energy sources such as hydro, wind and wave are becoming widespread to reduce the carbon emissions, on the other hand, this effort needs several novel methods, techniques and technologies compared to coal-based power. Power quality of renewable sources needs in depth research and endless study to improve renewable energy technologies. The aim of this project is to investigate the impact of renewable electric generator on its local distribution system. The power farm was designed to connect to the local distribution system and it will be investigated and analyzed to make sure that energy which is supplied to customer is clean. The MATLAB tools are used to simulate the overall analysis. At the end of the project, a summary of identifying various voltage fluctuates data sources is presented in terms of voltage flicker. A suggestion of the analysis impact of wave power generation on its local distribution is also presented for the development of wave generator farms.

  5. Use of a scenario-neutral approach to identify the key hydro-meteorological attributes that impact runoff from a natural catchment

    NASA Astrophysics Data System (ADS)

    Guo, Danlu; Westra, Seth; Maier, Holger R.

    2017-11-01

    Scenario-neutral approaches are being used increasingly for assessing the potential impact of climate change on water resource systems, as these approaches allow the performance of these systems to be evaluated independently of climate change projections. However, practical implementations of these approaches are still scarce, with a key limitation being the difficulty of generating a range of plausible future time series of hydro-meteorological data. In this study we apply a recently developed inverse stochastic generation approach to support the scenario-neutral analysis, and thus identify the key hydro-meteorological variables to which the system is most sensitive. The stochastic generator simulates synthetic hydro-meteorological time series that represent plausible future changes in (1) the average, extremes and seasonal patterns of rainfall; and (2) the average values of temperature (Ta), relative humidity (RH) and wind speed (uz) as variables that drive PET. These hydro-meteorological time series are then fed through a conceptual rainfall-runoff model to simulate the potential changes in runoff as a function of changes in the hydro-meteorological variables, and runoff sensitivity is assessed with both correlation and Sobol' sensitivity analyses. The method was applied to a case study catchment in South Australia, and the results showed that the most important hydro-meteorological attributes for runoff were winter rainfall followed by the annual average rainfall, while the PET-related meteorological variables had comparatively little impact. The high importance of winter rainfall can be related to the winter-dominated nature of both the rainfall and runoff regimes in this catchment. The approach illustrated in this study can greatly enhance our understanding of the key hydro-meteorological attributes and processes that are likely to drive catchment runoff under a changing climate, thus enabling the design of tailored climate impact assessments to specific water resource systems.

  6. Ovicidal and larvicidal activity of crude extracts of Maesa lanceolata and Plectranthus punctatus against Haemonchus contortus.

    PubMed

    Tadesse, Dereje; Eguale, Tadesse; Giday, Mirutse; Mussa, Abiy

    2009-03-18

    The widespread development of anthelmintic resistance and high cost of the conventional anthelmintic drugs, has limited the control of gastrointestinal nematode parasites of sheep and goats and hence led to evaluation of medicinal plants as an alternative source of anthelmintics. In the current study, in vitro ovicidal and larvicidal activity of the leaves and fruits of the aqueous and hydro-alcoholic extracts of Maesa lanceolata and aerial parts of Plectranthus punctatus were evaluated on the egg and larvae of Haemonchus contortus using egg hatch assay and larval development test. All extracts of plants tested have shown complete inhibition of egg hatching at or below 1 mg/ml. ED50 for egg hatch inhibition ranged from 0.11 to 0.29 mg/ml, for both the aqueous and hydro-alcoholic extracts of Plectranthus punctatus and Maesa lanceolata. All extracts have shown dose dependent inhibition of larval development with variable results. The complete inhibition (100%) at the maximum concentration tested (50 mg/ml) was obtained only for hydro-alcoholic extract of the fruits of Maesa lanceolata and the lowest inhibition (50.33%) was recorded for the hydro-alcoholic extract of the leaves of the same plant. The overall findings of the present study has shown that Plectranthus punctatus and Maesa lanceolata contain possible anthelmintic compounds and further evaluation of different extracts and fractions of these plants should be carried out.

  7. Is rhizosphere remediation sufficient for sustainable revegetation of mine tailings?

    PubMed Central

    Huang, Longbin; Baumgartl, Thomas; Mulligan, David

    2012-01-01

    Background Revegetation of mine tailings (fine-grained waste material) starts with the reconstruction of root zones, consisting of a rhizosphere horizon (mostly topsoil and/or amended tailings) and the support horizon beneath (i.e. equivalent to subsoil – mostly tailings), which must be physically and hydro-geochemically stable. This review aims to discuss key processes involved in the development of functional root zones within the context of direct revegetation of tailings and introduces a conceptual process of rehabilitating structure and function in the root zones based on a state transition model. Scope Field studies on the revegetation of tailings (from processing base metal ore and bauxite residues) are reviewed. Particular focus is given to tailings' properties that limit remediation effectiveness. Aspects of root zone reconstruction and vegetation responses are also discussed. Conclusions When reconstructing a root zone system, it is critical to restore physical structure and hydraulic functions across the whole root zone system. Only effective and holistically restored systems can control hydro-geochemical mobility of acutely and chronically toxic factors from the underlying horizon and maintain hydro-geochemical stability in the rhizosphere. Thereafter, soil biological capacity and ecological linkages (i.e. carbon and nutrient cycling) may be rehabilitated to integrate the root zones with revegetated plant communities into sustainable plant ecosystems. A conceptual framework of system transitions between the critical states of root zone development has been proposed. This will illustrate the rehabilitation process in root zone reconstruction and development for direct revegetation with sustainable plant communities. Sustainable phytostabilization of tailings requires the systematic consideration of hydro-geochemical interactions between the rhizosphere and the underlying supporting horizon. It further requires effective remediation strategies to develop hydro-geochemically stable and biologically functional root zones, which can facilitate the recovery of the microbial community and ecological linkages with revegetated plant communities. PMID:22648878

  8. 75 FR 17706 - FPL Energy Maine Hydro LLC, Complainant v. Great Lakes Hydro America LLC Rumford Falls Hydro LLC...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-07

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. EL10-53-000] FPL Energy Maine Hydro LLC, Complainant v. Great Lakes Hydro America LLC Rumford Falls Hydro LLC, Respondents; Notice of Complaint March 29, 2010. Take notice that on March 26, 2010, pursuant to section 206 of the Federal Energy Regulatory Commission's (Commission...

  9. 77 FR 13317 - Notice Announcing Filing Priority for Preliminary Permit Applications: Lock+ Hydro Friends Fund...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-06

    ... Applications: Lock+ Hydro Friends Fund VIII; FFP Project 92, LLC; Riverbank Hydro No. 24, LLC On February 28.... 14276-000. 2. Riverbank Hydro No. 24, LLC: Project No. 14280-000. 3. Lock+ Hydro Friends Fund VIII...

  10. Turbulent Flow Effects on the Biological Performance of Hydro-Turbines

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Richmond, Marshall C.; Romero Gomez, Pedro DJ

    2014-08-25

    The hydro-turbine industry uses Computational Fluid Dynamics (CFD) tools to predict the flow conditions as part of the design process for new and rehabilitated turbine units. Typically the hydraulic design process uses steady-state simulations based on Reynolds-Averaged Navier-Stokes (RANS) formulations for turbulence modeling because these methods are computationally efficient and work well to predict averaged hydraulic performance, e.g. power output, efficiency, etc. However, in view of the increasing emphasis on environmental concerns, such as fish passage, the consideration of the biological performance of hydro-turbines is also required in addition to hydraulic performance. This leads to the need to assess whethermore » more realistic simulations of the turbine hydraulic environment -those that resolve unsteady turbulent eddies not captured in steady-state RANS computations- are needed to better predict the occurrence and extent of extreme flow conditions that could be important in the evaluation of fish injury and mortality risks. In the present work, we conduct unsteady, eddy-resolving CFD simulations on a Kaplan hydro-turbine at a normal operational discharge. The goal is to quantify the impact of turbulence conditions on both the hydraulic and biological performance of the unit. In order to achieve a high resolution of the incoming turbulent flow, Detached Eddy Simulation (DES) turbulence model is used. These transient simulations are compared to RANS simulations to evaluate whether extreme hydraulic conditions are better captured with advanced eddy-resolving turbulence modeling techniques. The transient simulations of key quantities such as pressure and hydraulic shear flow that arise near the various components (e.g. wicket gates, stay vanes, runner blades) are then further analyzed to evaluate their impact on the statistics for the lowest absolute pressure (nadir pressures) and for the frequency of collisions that are known to cause mortal injury in fish passing through hydro-turbines.« less

  11. A new and integrated hydro-economic accounting and analytical framework for water resources: a case study for North China.

    PubMed

    Guan, Dabo; Hubacek, Klaus

    2008-09-01

    Water is a critical issue in China for a variety of reasons. China is poor of water resources with 2,300 m(3) of per capita availability, which is less than 13 of the world average. This is exacerbated by regional differences; e.g. North China's water availability is only about 271 m(3) of per capita value, which is only 125 of the world's average. Furthermore, pollution contributes to water scarcity and is a major source for diseases, particularly for the poor. The Ministry of Hydrology [1997. China's Regional Water Bullets. Water Resource and Hydro-power Publishing House, Beijing, China] reports that about 65-80% of rivers in North China no longer support any economic activities. Previous studies have emphasized the amount of water withdrawn but rarely take water quality into consideration. The quality of the return flows usually changes; the water quality being lower than the water flows that entered the production process initially. It is especially important to measure the impacts of wastewater to the hydro-ecosystem. Thus, water consumption should not only account for the amount of water inputs but also the amount of water contaminated in the hydro-ecosystem by the discharged wastewater. In this paper we present a new accounting and analytical approach based on economic input-output modelling combined with a mass balanced hydrological model that links interactions in the economic system with interactions in the hydrological system. We thus follow the tradition of integrated economic-ecologic input-output modelling. Our hydro-economic accounting framework and analysis tool allows tracking water consumption on the input side, water pollution leaving the economic system and water flows passing through the hydrological system thus enabling us to deal with water resources of different qualities. Following this method, the results illustrate that North China requires 96% of its annual available water, including both water inputs for the economy and contaminated water that is ineligible for any uses.

  12. Energy Operation Model

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Energy Operation Model (EOM) simulates the operation of the electric grid at the zonal scale, including inter-zonal transmission constraints. It generates the production cost, power generation by plant and category, fuel usage, and locational marginal price (LMP) with a flexible way to constrain the power production by environmental constraints, e.g. heat waves, drought conditions). Different from commercial software such as PROMOD IV where generator capacity and heat rate efficiency can only be adjusted on a monthly basis, EOM calculates capacity impacts and plant efficiencies based on hourly ambient conditions (air temperature and humidity) and cooling water availability for thermal plants.more » What is missing is a hydro power dispatch.« less

  13. 75 FR 14437 - North Eastern Wisconsin Hydro Inc. (N.E.W. Hydro); Notice of Intent To File License Application...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-25

    ... Wisconsin Hydro Inc. (N.E.W. Hydro); Notice of Intent To File License Application, Filing of Pre-Application..., Inc. (N.E.W. Hydro) e. Name of Project: Menominee/Park Mill Hydroelectric Project. f. Location: The..., (202) 502-6156 or by e-mail at [email protected] . j. N.E.W. Hydro filed its request to use the...

  14. DOE Office of Scientific and Technical Information (OSTI.GOV)

    Hennagir, T.

    China's peaking power need continues to drive a highly competitive market for pumped storage turbines. Two contract awards in this growing Far East region have increased visibility of Kvaerner Energy a.s. and Voith Hydro Inc. In October, Kvaerner was awarded a $150 million contract for six 300 MW reversible pump turbines for the 1,800 MW Tianhuangping Pumped Storage Project near Zhejing (Shanghai). The equipment and the contract have been lauded for their significance: The award is the largest of their kind in the world. Voith Hydro's contract to furnish and install four 204 MW pump turbines for the 816 MWmore » Shisanling PUmped Storage Project north of Beijing has drawn attention as well. Not only was the July 1992 contract signing ceremony conducted inside the Great Hall of the People in Beijing, but Chinese Premier Li Peng officiated at the project's groundbreaking ceremony.« less

  15. 77 FR 77070 - Black Bear Hydro Partners, LLC;

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-31

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 2727-086] Black Bear Hydro...: October 24, 2012. d. Submitted By: Black Bear Hydro Partners, LLC (Black Bear Hydro). e. Name of Project... designating Black Bear Hydro as the Commission's non-federal representative for carrying out informal...

  16. A critical view on the eco-friendliness of small hydroelectric installations.

    PubMed

    Premalatha, M; Tabassum-Abbasi; Abbasi, Tasneem; Abbasi, S A

    2014-05-15

    Renewable energy sources are widely perceived as 'clean', 'green', and 'inexhaustible'. In recent years the spectre of global warming and ocean acidification, which has been primarily attributed to fossil fuel burning, has brought renewable energy at the forefront of most climate change mitigation strategies. There is strong advocacy for large-scale substitution of conventional energy sources with the renewables on the premise that such a move would substantially reduce environmental degradation and global warming. These sentiments are being echoed by scientists and policy makers as well as environmental activists all over the world. 'Small hydro', which generally represents hydroelectric power projects of capacities 25 MW or lower, is one of the renewable energy options which is believed to be clean and sustainable even as its bigger version, large hydro, is known to cause several strongly adverse environmental impacts. This paper brings out that the prevailing perception of 'eco-friendliness' of small hydro is mainly due to the fact that it has only been used to a very small extent so far. But once it is deployed at a scale comparable to fossil fuel use, the resulting impacts would be quite substantially adverse. The purpose is not to denegrade small hydro, less so to advocate use of fossil fuels. It, rather, is to bring home the point that a much more realistic and elaborate assessment of the likely direct as well as indirect impacts of extensive utilization of this energy source than has been done hitherto is necessary. Copyright © 2013 Elsevier B.V. All rights reserved.

  17. Study of hydro-saline characteristics of soils a palm grove in basin of Ouargla (Northern Algerian Sahara)

    NASA Astrophysics Data System (ADS)

    Rezagui, D.; Bouhoun, M. Daddi; Boutoutaou, D.; Djaghoubi, A.

    2016-07-01

    Saharan soils are often faced with several problems of development, taking account the hydro-edaphic constraints, mainly of hydric types by water table, mechanical by gypso-calcareous crusts and saline by irrigation waters and upwelling of water table. Our work consists in doing a soil characterization of a palm grove in Ouargla in order to study the constraints hydro-halomorphes. The results show that irrigation water by two plies of Senonian and Mioplcène had a high salinity with a value of 2.83 and 5.10 dS.m-1 respectively. The conduct of irrigation is traditional random of submersion type. The palm grove has a poor drainage with a level of water table 156.67±15.71 cm and salinity of 31.37±34.04 dS.m-1. The drains are open type and their maintenance is not regular. This situation of management of irrigation-drainage promotes the upwelling of water table and the waterlogging in soils. The study of soil profiles shows the existence of mechanical obstruction of gypso-calcareous crusts which limit the entrenchment of the date palms and the leaching of salts. Soil salinity is excessive in profiles with a range of 8.98 ± 4.58 dS.m-1. This accumulation of salts is due to the dynamic ascending and descending of salts respectively under the effect of upwelling of water table and leaching by irrigation. The salinization, the upwelling of water table and the presence of gypso-calcareous crusts recorded in Ouargla testify to a degradation hydro-halomorphe and mechanic of soil which constitute the major constraints in the management of system irrigation-drainage and sustainable agricultural development of the palm groves of the basin of Ouargla. Some hydro-agricultural planning are necessary to apply in the oasis to improve the hydro-mechanical properties of soils in order to reduce their degradation.

  18. Cyberinfrastructure to Support Collaborative and Reproducible Computational Hydrologic Modeling

    NASA Astrophysics Data System (ADS)

    Goodall, J. L.; Castronova, A. M.; Bandaragoda, C.; Morsy, M. M.; Sadler, J. M.; Essawy, B.; Tarboton, D. G.; Malik, T.; Nijssen, B.; Clark, M. P.; Liu, Y.; Wang, S. W.

    2017-12-01

    Creating cyberinfrastructure to support reproducibility of computational hydrologic models is an important research challenge. Addressing this challenge requires open and reusable code and data with machine and human readable metadata, organized in ways that allow others to replicate results and verify published findings. Specific digital objects that must be tracked for reproducible computational hydrologic modeling include (1) raw initial datasets, (2) data processing scripts used to clean and organize the data, (3) processed model inputs, (4) model results, and (5) the model code with an itemization of all software dependencies and computational requirements. HydroShare is a cyberinfrastructure under active development designed to help users store, share, and publish digital research products in order to improve reproducibility in computational hydrology, with an architecture supporting hydrologic-specific resource metadata. Researchers can upload data required for modeling, add hydrology-specific metadata to these resources, and use the data directly within HydroShare.org for collaborative modeling using tools like CyberGIS, Sciunit-CLI, and JupyterHub that have been integrated with HydroShare to run models using notebooks, Docker containers, and cloud resources. Current research aims to implement the Structure For Unifying Multiple Modeling Alternatives (SUMMA) hydrologic model within HydroShare to support hypothesis-driven hydrologic modeling while also taking advantage of the HydroShare cyberinfrastructure. The goal of this integration is to create the cyberinfrastructure that supports hypothesis-driven model experimentation, education, and training efforts by lowering barriers to entry, reducing the time spent on informatics technology and software development, and supporting collaborative research within and across research groups.

  19. Advancing the Implementation of Hydrologic Models as Web-based Applications

    NASA Astrophysics Data System (ADS)

    Dahal, P.; Tarboton, D. G.; Castronova, A. M.

    2017-12-01

    Advanced computer simulations are required to understand hydrologic phenomenon such as rainfall-runoff response, groundwater hydrology, snow hydrology, etc. Building a hydrologic model instance to simulate a watershed requires investment in data (diverse geospatial datasets such as terrain, soil) and computer resources, typically demands a wide skill set from the analyst, and the workflow involved is often difficult to reproduce. This work introduces a web-based prototype infrastructure in the form of a web application that provides researchers with easy to use access to complete hydrological modeling functionality. This includes creating the necessary geospatial and forcing data, preparing input files for a model by applying complex data preprocessing, running the model for a user defined watershed, and saving the results to a web repository. The open source Tethys Platform was used to develop the web app front-end Graphical User Interface (GUI). We used HydroDS, a webservice that provides data preparation processing capability to support backend computations used by the app. Results are saved in HydroShare, a hydrologic information system that supports the sharing of hydrologic data, model and analysis tools. The TOPographic Kinematic APproximation and Integration (TOPKAPI) model served as the example for which we developed a complete hydrologic modeling service to demonstrate the approach. The final product is a complete modeling system accessible through the web to create input files, and run the TOPKAPI hydrologic model for a watershed of interest. We are investigating similar functionality for the preparation of input to Regional Hydro-Ecological Simulation System (RHESSys). Key Words: hydrologic modeling, web services, hydrologic information system, HydroShare, HydroDS, Tethys Platform

  20. Renewable Energy

    NASA Astrophysics Data System (ADS)

    Boyle, Godfrey

    2004-05-01

    Stimulated by recent technological developments and increasing concern over the sustainability and environmental impact of conventional fuel usage, the prospect of producing clean, sustainable power in substantial quantities from renewable energy sources arouses interest around the world. This book provides a comprehensive overview of the principal types of renewable energy--including solar, thermal, photovoltaics, bioenergy, hydro, tidal, wind, wave, and geothermal. In addition, it explains the underlying physical and technological principles of renewable energy and examines the environmental impact and prospects of different energy sources. With more than 350 detailed illustrations, more than 50 tables of data, and a wide range of case studies, Renewable Energy, 2/e is an ideal choice for undergraduate courses in energy, sustainable development, and environmental science. New to the Second Edition ·Full-color design ·Updated to reflect developments in technology, policy, attitides ·Complemented by Energy Systems and Sustainability edited by Godfrey Boyle, Bob Everett and Janet Ramage, all of the Open University, U.K.

  1. 78 FR 2985 - Moretown Hydro Energy Company; Ampersand Moretown Hydro, LLC; Notice of Application for Transfer...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-15

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 5944-021] Moretown Hydro Energy Company; Ampersand Moretown Hydro, LLC; Notice of Application for Transfer of License, and Soliciting Comments and Motions To Intervene On September 25, 2012, Moretown Hydro Energy Company (transferor...

  2. 77 FR 26796 - HydroGenetics, Inc.; Order of Suspension of Trading

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-07

    ... SECURITIES AND EXCHANGE COMMISSION [File No. 500-1] HydroGenetics, Inc.; Order of Suspension of... and accurate information concerning the securities of HydroGenetics, Inc. (``HydroGenetics'') because... require a suspension of trading in the securities of HydroGenetics. Therefore, it is ordered, pursuant to...

  3. Hydro-mechanical model for wetting/drying and fracture development in geomaterials

    DOE PAGES

    Asahina, D.; Houseworth, J. E.; Birkholzer, J. T.; ...

    2013-12-28

    This study presents a modeling approach for studying hydro-mechanical coupled processes, including fracture development, within geological formations. This is accomplished through the novel linking of two codes: TOUGH2, which is a widely used simulator of subsurface multiphase flow based on the finite volume method; and an implementation of the Rigid-Body-Spring Network (RBSN) method, which provides a discrete (lattice) representation of material elasticity and fracture development. The modeling approach is facilitated by a Voronoi-based discretization technique, capable of representing discrete fracture networks. The TOUGH–RBSN simulator is intended to predict fracture evolution, as well as mass transport through permeable media, under dynamicallymore » changing hydrologic and mechanical conditions. Numerical results are compared with those of two independent studies involving hydro-mechanical coupling: (1) numerical modeling of swelling stress development in bentonite; and (2) experimental study of desiccation cracking in a mining waste. The comparisons show good agreement with respect to moisture content, stress development with changes in pore pressure, and time to crack initiation. Finally, the observed relationship between material thickness and crack patterns (e.g., mean spacing of cracks) is captured by the proposed modeling approach.« less

  4. 78 FR 17649 - Western Minnesota Municipal Power Agency; FFP Qualified Hydro 14, LLC; Notice of Competing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-22

    ... the proposed turbines; (6) a new 120-foot-long by 70-foot-wide concrete powerhouse, containing three 4.8-MW Kaplan turbine-generators, with a combined nameplate capacity of 14.4 MW; (7) a new 275-foot...) a new 100-foot-long by 50-foot-wide concrete powerhouse with three 5-megawatt (MW) turbines, having...

  5. Experimental modeling of swirl flows in power plants

    NASA Astrophysics Data System (ADS)

    Shtork, S. I.; Litvinov, I. V.; Gesheva, E. S.; Tsoy, M. A.; Skripkin, S. G.

    2018-03-01

    The article presents an overview of the methods and approaches to experimental modeling of various thermal and hydropower units - furnaces of pulverized coal boilers and flow-through elements of hydro turbines. The presented modeling approaches based on a combination of experimentation and rapid prototyping of working parts may be useful in optimizing energy equipment to improve safety and efficiency of industrial energy systems.

  6. 77 FR 66605 - Nashua Hydro Associates; Notice of Application for Amendment of Exemption and Soliciting Comments...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-06

    ... Hampshire. g. Filed Pursuant to: Federal Power Act, 16 U.S.C. 791(a-825(r). h. Applicant Contact: Mr. Andrew..., DC 20004, (202) 585-8338, [email protected] . i. FERC Contact: Kelly Houff, (202) 502-6393... the instructions on the Commission's Web site http://www.ferc.gov/docs-filing/efiling.asp . Commenters...

  7. 78 FR 60271 - Hollow Dam Power Company; Ampersand Hollow Dam Hydro, LLC; Notice of Application for Transfer of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-01

    ...Library link of Commission's Web site at http://www.ferc.gov/docs-filing/elibrary.asp . Enter the docket...) and the instructions on the Commission's Web site under http://www.ferc.gov/docs-filing/efiling.asp... system at http://www.ferc.gov/docs-filing/ecomment.asp . You must include your name and contact...

  8. 76 FR 70434 - Shelbyville Hydro LLC; Notice of Application Tendered for Filing With the Commission and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-14

    ... agencies: Federal, state, local, and tribal agencies with jurisdiction and/or special expertise with... as flow regimens and pool levels are set forth by the Corps. The project would generate power using flows between 130 cfs (cubic feet per second) to 1,500 cfs. When flows are below 130 cfs, all flows...

  9. Development of a project on North Unit Irrigation District’s Main Canal at the Monroe Drop, using a novel low-head hydropower technology called the SLH100

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Schneider, Abraham; Schneider, Gia; McKinstry, Katherine

    Natel Energy is a low­-head, distributed hydropower company based out of Alameda, CA. Natel manufactures and sells proprietary hydroelectric turbines called hydroEngines® that are suitable for low-­head, high-­flow settings, and range from 30kW to 1 MW of capacity per unit. Natel’s hydroEngine is a state­-of­the-­art two stage impulse turbine, using blades mounted symmetrically on two belts perpendicular to the axis of travel, and using linearly­-moving foils, rather than a rotor, to enable efficient conversion of kinetic energy of large volumes of water at low head with no risk of cavitation. In addition, the hydroEngine can be installed at or abovemore » tailwater level, reducing the excavation necessary to build the powerhouse and thus reducing total installed cost and project footprint. Thus, the hydroEngine technology enables a new generation of small hydro installations with low cost of project development, fish-­friendly operations, and small project footprint. In September of 2015, Natel Energy formally commissioned its first project installation in Madras, Oregon, installing 1 SLH100 turbine at an existing drop structure on the North Unit Irrigation District (NUID) Main Canal. The water falls between 13.5 feet to 16.5 feet at this structure, depending on flow. The plant has an installed capacity of 250 kW and an expected annual generation of approximately 873 MWh. The plant operates at an annual capacity factor of 40%, and a capacity factor over the irrigation season, or period of available flow, of 80%. Annual capacity factor is calculated as a percentage of plant operating hours relative to a total of 8,760 hours in a year; because the irrigation canal in which the Project is located only runs water from April to October, the available flow capacity factor is higher. Net greenhouse gas reductions from the Monroe Project are estimated to be 602 tCO2/year. The purpose of this report is to provide an overview of the specifications for Natel’s first commissioned project, the project development process, the plant’s performance, project costs, and the construction, installation, and commissioning process. We hope that this report will provide useful context for assessment of the hydroEngine as a viable technology choice for future distributed, low-­head hydropower projects, as well as assessment of the bankability, performance, reliability, and cost of the hydroEngine.« less

  10. The utility and its customer: A complex relationship

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Covelli, L.; Williams, M.V.

    Developing methods of tracking customer satisfaction for utilities presents major problems since the customer reacts to the utility on many different levels. The more obvious are in relation to the product (energy) and the services the company provides. More recently there has been talk of the {open_quotes}brand{close_quotes} elements of the company-customer relationship. Ontario Hydro (OH) has developed a method utilizing four separate domains for measuring and tracking customer satisfaction: product, service, competitiveness, and institutional relationships. Ontario Hydro conducted a survey of over 1200 residential customers. The respondents received a detailed in-person survey of their estimation of the importance of specificmore » aspects of customer service and their view of Ontario Hydro`s performance on those same issues. The data yielded 28 factors covered a large variety of separate concerns: customer service, and treatment of customers to export policy. OH concluded that the utility`s relationship with its customer is more complex than the susual customer-vendor interaction. A utility not only provides a product and a service, it has a institutional personality and provides an absolutely necessary product under an exclusive franchise and executes government policy as a regulated monopoly. It was found that customers are sensitive to all of these attributes.« less

  11. Trans-African Hydro-Meteorological Observatory (TAHMO): A network to monitor weather, water, and climate in Africa

    NASA Astrophysics Data System (ADS)

    Van De Giesen, N.; Hut, R.; Andreini, M.; Selker, J. S.

    2013-12-01

    The Trans-African Hydro-Meteorological Observatory (TAHMO) has a goal to design, build, install and operate a dense network of hydro-meteorological monitoring stations in sub-Saharan Africa; one every 35 km. This corresponds to a total of 20,000 stations. By applying ICT and innovative sensors, each station should cost not more than $500. The stations would be placed at schools and integrated in the environmental curriculum. Data will be combined with models and satellite observations to obtain a very complete insight into the distribution of water and energy stocks and fluxes. Within this project, we have built a prototype of an acoustic disdrometer (rain gauge) that can be produced for much less than the cost of a commercial equivalent with the same specifications. The disdrometer was developed in The Netherlands and tested in Tanzania for a total project cost of Euro 5000. First tests have been run at junior high schools in Ghana to incorporate hydro-meteorological measurements in the science curriculum. The latest activity concerns the organization of a crowdsourcing competitions across Africa to address business development and the design and building of new robust sensors. This has resulted in a wide network throughout the continent to bring this program forward.

  12. 78 FR 56224 - Hydro Nelson, Ltd.; Hydro-WM, LLC; Notice of Transfer of Exemption

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-12

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 3401-049] Hydro Nelson, Ltd.; Hydro-WM, LLC; Notice of Transfer of Exemption 1. By documentation filed July 8, 2013 and supplemented on September 4, 2013, Hydro-WM, LLC informed the Commission that the exemption from licensing for the...

  13. 77 FR 9916 - Riverbank Hydro No. 2, LLC; Lock+ Hydro Friends Fund XXXVI; Notice Announcing Preliminary Permit...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-21

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project Nos. 14130-000; 14137-000] Riverbank Hydro No. 2, LLC; Lock+ Hydro Friends Fund XXXVI; Notice Announcing Preliminary Permit Drawing The...+ Hydro Friends Fund XXXVI for Project No. 14137-000. \\1\\ Under the Commission's Rules of Practice and...

  14. 76 FR 65720 - Lock+ Hydro Friends Fund XXXV, Riverbank Hydro No. 4, LLC; Notice Announcing Preliminary Permit...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-24

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 14136-000; Project No. 14139-000] Lock+ Hydro Friends Fund XXXV, Riverbank Hydro No. 4, LLC; Notice Announcing Preliminary... County, Wisconsin.\\1\\ The applications were filed by Lock+ Hydro Friends Fund XXXV for Project No. 14136...

  15. 75 FR 61463 - Lock+ Hydro Friends Fund XLIX; FFP Missouri 15, LLC; Notice of Competing Preliminary Permit...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-05

    ...+ Hydro Friends Fund XLIX; FFP Missouri 15, LLC; Notice of Competing Preliminary Permit Applications..., 2010. On July 12, 2010, Lock+ Hydro Friends Fund XLVIII (Hydro Friends) and FFP Missouri 15, LLC (FFP... without the owners' express permission. Hydro Friends' proposed Lock and Dam 14 Hydropower Project...

  16. A Systematic Multi-Time Scale Solution for Regional Power Grid Operation

    NASA Astrophysics Data System (ADS)

    Zhu, W. J.; Liu, Z. G.; Cheng, T.; Hu, B. Q.; Liu, X. Z.; Zhou, Y. F.

    2017-10-01

    Many aspects need to be taken into consideration in a regional grid while making schedule plans. In this paper, a systematic multi-time scale solution for regional power grid operation considering large scale renewable energy integration and Ultra High Voltage (UHV) power transmission is proposed. In the time scale aspect, we discuss the problem from month, week, day-ahead, within-day to day-behind, and the system also contains multiple generator types including thermal units, hydro-plants, wind turbines and pumped storage stations. The 9 subsystems of the scheduling system are described, and their functions and relationships are elaborated. The proposed system has been constructed in a provincial power grid in Central China, and the operation results further verified the effectiveness of the system.

  17. Assessing climate change impact on complementarity between solar and hydro power in areas affected by glacier shrinkage

    NASA Astrophysics Data System (ADS)

    Diah Puspitarini, Handriyanti; François, Baptiste; Zoccatelli, Davide; Brown, Casey; Creutin, Jean-Dominique; Zaramella, Mattia; Borga, Marco

    2017-04-01

    Variable Renewable Energy (VRE) sources such as wind, solar and runoff sources are variable in time and space, following their driving weather variables. In this work we aim to analyse optimal mixes of energy sources, i.e. mixes of sources which minimize the deviation between energy load and generation, for a region in the Upper Adige river basin (Eastern Italian Alps) affected by glacier shrinking. The study focuses on hydropower (run of the river - RoR) and solar energy, and analyses the current situation as well different climate change scenarios. Changes in glacier extent in response to climate warming and/or altered precipitation regimes have the potential to substantially alter the magnitude and timing, as well as the spatial variation of watershed-scale hydrologic fluxes. This may change the complementarity with solar power as well. In this study, we analyse the climate change impact on complementarity between RoR and solar using the Decision Scaling approach (Brown et al. 2012). With this approach, the system vulnerability is separated from the climatic hazard that can come from any set of past or future climate conditions. It departs from conventional top-down impact studies because it explores the sensitivity of the system response to a plausible range of climate variations rather than its sensitivity to the time-varying outcome of individual GCM projections. It mainly relies on the development of Climate Response Functions that bring together i) the sensitivity of some system success and/or failure indicators to key external drivers (i.e. mean features of regional climate) and ii) the future values of these drivers as simulated from climate simulation chains. The main VRE sources used in the study region are solar- and hydro-power (with an important fraction of run-of-the river hydropower). The considered indicator of success is the 'energy penetration' coefficient, defined as the long-run percentage of energy demand naturally met by the VRE on an hourly basis. Climate response functions, developed in a 2D climate change space (change in mean temperature and precipitation), are built from multiple hydro-climatic scenarios obtained by perturbing the observed weather time series with the change factor method, and considering given glacier storage states. Climate experiments are further used for assessing these change factors from different emission scenarios, climate models and future prediction lead times. Their positioning on the Climate Response Function allows discussing the risk/opportunities pertaining to changes in VRE penetration in the future. Results show i) the large impact of glacier shrinkage on the complementarity between solar and RoR energy sources and ii) that the impact is decreasing with time, with the main alterations to be expected in the coming 30 years. Brown, C., Ghile, Y., Laverty, M., Li, K., (2012). Decision scaling: Linking bottom up vulnerability analysis with climate projections in the water sector. Water Resour Res 48. 515 doi:10.1029/2011WR011212

  18. Theory of hydro-equivalent ignition for inertial fusion and its applications to OMEGA and the National Ignition Facility

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Nora, R.; Betti, R.; Bose, A.

    The theory of ignition for inertial confinement fusion capsules [R. Betti et al., Phys. Plasmas 17, 058102 (2010)] is used to assess the performance requirements for cryogenic implosion experiments on the Omega Laser Facility. The theory of hydrodynamic similarity is developed in both one and two dimensions and tested using multimode hydrodynamic simulations with the hydrocode DRACO [P. B. Radha et al., Phys. Plasmas 12, 032702 (2005)] of hydro-equivalent implosions (implosions with the same implosion velocity, adiabat, and laser intensity). The theory is used to scale the performance of direct-drive OMEGA implosions to the National Ignition Facility (NIF) energy scalesmore » and determine the requirements for demonstrating hydro-equivalent ignition on OMEGA. Hydro-equivalent ignition on OMEGA is represented by a cryogenic implosion that would scale to ignition on the NIF at 1.8 MJ of laser energy symmetrically illuminating the target. It is found that a reasonable combination of neutron yield and areal density for OMEGA hydro-equivalent ignition is 3 to 6 × 10{sup 13} and ∼0.3 g/cm{sup 2}, respectively, depending on the level of laser imprinting. This performance has not yet been achieved on OMEGA.« less

  19. Anchorage of iron hydro(oxide) nanoparticles onto activated carbon to remove As(V) from water.

    PubMed

    Nieto-Delgado, Cesar; Rangel-Mendez, Jose Rene

    2012-06-01

    The adsorption of arsenic (V) by granular iron hydro(oxides) has been proven to be a reliable technique. However, due to the low mechanical properties of this material, it is difficult to apply it in full scale water treatment. Hence, the aim of this research is to develop a methodology to anchor iron hydro(oxide) nanoparticles onto activated carbon, in which the iron hydro(oxide) nanoparticles will give the activated carbon an elevated active surface area for arsenic adsorption and also help avoid the blockage of the activated carbon pores. Three activated carbons were modified by employing the thermal hydrolysis of iron as the anchorage procedure. The effects of hydrolysis temperature (60-120 °C), hydrolysis time (4-16 h), and FeCl(3) concentration (0.4-3 mol Fe/L) were studied by the surface response methodology. The iron content of the modified samples ranged from 0.73 to 5.27%, with the higher end of the range pertaining to the carbons with high oxygen content. The materials containing smaller iron hydro(oxide) particles exhibited an enhanced arsenic adsorption capacity. The best adsorbent material reported an arsenic adsorption capacity of 4.56 mg As/g at 1.5 ppm As at equilibrium and pH 7. Copyright © 2012 Elsevier Ltd. All rights reserved.

  20. Sediment transport monitoring for sustainable hydropower development

    NASA Astrophysics Data System (ADS)

    Rüther, Nils; Guerrero, Massimo; Stokseth, Siri

    2015-04-01

    Due to the increasing demand of CO2 neutral energy not only in Europe but also in World, a relatively large amount of new hydro power plants (HPP) are built. In addition, will existing ones refurbished and renewed in order to run them more cost effective. A huge thread to HPPs is incoming sediments in suspension from the rivers upstream. The sediments settle in the reservoir and reduce the effective head and volume and reduce consequently the life time of the reservoir. In addition are the fine sediments causing severe damages to turbines and infrastructure of a HPP. For estimating the amount of incoming sediments in suspension and therefore planning efficient counter measures, it is essential to monitor the rivers within the catchment of the HPP for suspended sediments. This work is considerably time consuming and requires highly educated personnel and is therefore expensive. Consequently will this study present a method to measure suspended sediment concentrations and their grain size distribution with a dual frequency acoustic Doppler current profiler (ADCP). This method is more cost effective and reliable in comparison to traditional measurement methods. Having more detailed information about the sediments being transported in a river, the hydro power plant can be planned, built, and operated much more efficiently and sustainable. The two horizontal ADCPs are installed at a measurement cross section in the Devoll river in Albania. To verify the new method, the suspended load concentrations will be monitored also in the traditional ways at the same cross sections. It is planned to install turbidity measurement devices included with an automatic sampling devices. It is also planned to use an optical in situ measurement device (LISST SL by Sequoia Inc.) to have detailed information of sediment concentration and grain sizes over the depth.

  1. 77 FR 13317 - Lock+ Hydro Friends Fund XVIII, Upper Hydroelectric, LLC, FFP Project 95, LLC, Riverbank Hydro No...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-06

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project Nos. 14261-000, 14268-000, 14277-000, 14281-000] Lock+ Hydro Friends Fund XVIII, Upper Hydroelectric, LLC, FFP Project 95, LLC.... Lock+ Hydro Friends Fund XVIII: Project No. 14261-000. 2. Riverbank Hydro No. 25, LLC: Project No...

  2. 75 FR 49925 - Lock+ Hydro Friends Fund XLIX; FFP Missouri 14, LLC; Notice of Competing Preliminary Permit...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-16

    .... 13813-000] Lock+ Hydro Friends Fund XLIX; FFP Missouri 14, LLC; Notice of Competing Preliminary Permit... August 9, 2010. Lock+ Hydro Friends Fund XLIX (Hydro Friends) and FFP Missouri 14, LLC (FFP) filed...-station located south-west of the dam. Hydro Friends is also exploring alternatives that would locate the...

  3. 77 FR 10740 - Lock+ Hydro Friends Fund VIII, FFP Project 92, LLC, Riverbank Hydro No. 24, LLC; Notice...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-23

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project Nos. 14262-000, 14276-000, 14280-000] Lock+ Hydro Friends Fund VIII, FFP Project 92, LLC, Riverbank Hydro No. 24, LLC; Notice... Counties, Kentucky. The applications were filed by Lock+ Hydro Friends Fund VIII for Project No. 14262-000...

  4. Effects of flushing Spencer Hydro on water quality, fish, and insect fauna in the Niobrara River, Nebraska

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Hesse, L.W.; Newcomb, B.A.

    Hydroelectric facilities with a low generating capacity (approximately one megawatt) such as Spencer Hydro on the Niobrara River in Nebraska are important, as referenced by the renewed interest in the revival of many that were deactivated with the advent of large fossil fuel and nuclear generating stations. The water reservoir impounded by the Spencer Dam is shallow and entrapped sediment quickly fills the pond, reducing power generating potential and threatening the internal components of the hydro station. This action requires periodic flushings to allow settled sediment to move past the station, resulting in adverse impacts on water quality, fish, andmore » fish-food organisms in the 63.3 km of Niobrara River downstream from the dam. Investigations in 1979 revealed unacceptable low levels of DO (3.5-4.0 mg/liter), pronounced increases in turbidity (>400%) and suspended solids (4-fold), and a doubling of dissolved solids. Thirty species of fish were affected, with a conservative count of 22,471 dead fish plus others under extreme stress. Young fish were most affected. There also were large changes in the abundance of many species of immature aquatic insects. A series of corrective recommendations are proposed to alleviate the problem and enhance the fishery in the lower river.« less

  5. Addressing Impacts of Geomagnetic Disturbances on the North American Bulk Power System

    NASA Astrophysics Data System (ADS)

    Rollison, Eric; Moura, John; Lauby, Mark

    2011-08-01

    In a joint report issued in June 2010, the North American Electric Reliability Corporation (NERC) and the U.S. Department of Energy (DOE) identified geomagnetic disturbances as a high-impact, low-frequency (HILF) event risk to bulk power system reliability. The potential impact of geomagnetic disturbance events has gained renewed attention as recent studies have suggested that solar storms may be more severe and reach lower geographic latitudes than formerly expected and can affect bulk power system reliability. The most well known power system experience with geomagnetic disturbances in North America was the 13-14 March 1989 storm, which led to the collapse of the Hydro-Québec system in the early morning hours of 13 March 1989, lasting approximately 9 hours. NERC is actively addressing a range of HILF event risks to bulk power system reliability through the efforts of four of its task forces: Geomagnetic Disturbance, Spare Equipment Database, Cyber and Physical Attack, and Severe Impact Resilience. These task forces operate under the direction of three NERC committees: Planning, Operating, and Critical Infrastructure Protection. The NERC Geomagnetic Disturbance Task Force (GMDTF), which was established in September 2010, is charged with investigating the implications of geomagnetic disturbances to the reliability of bulk power systems and developing solutions to help mitigate these risks. The objective of these efforts is to develop models to better understand the nature and effects of coronal mass ejections (CMEs), the vulnerabilities of equipment, bulk power system design considerations, our ability to reduce the operational and real-time impacts of geomagnetic disturbances on the bulk power system, and restoration methods, as well as to inventory long-lead-time equipment. For more information on the current activities of the GMDTF, please visit: www.nerc.com/filez/gmdtf.html

  6. 75 FR 71104 - Lock Hydro Friends Fund XXXV; FFP Missouri 7, LLC; Dashields Hydro, LLC; Notice of Competing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-22

    .... 13735-000; Project No. 13756-000; Project No. 13779-000] Lock Hydro Friends Fund XXXV; FFP Missouri 7... Soliciting Comments, and Motions To Intervene November 15, 2010. On May 18, 2010, Lock Hydro Friends Fund.... Descriptions of the proposed Dashields Lock and Dam Projects: Lock Hydro Friends Fund XXXV's project (Project...

  7. 77 FR 10741 - Lock+ Hydro Friends Fund XII, BOST2, LLC, Riverbank Hydro No. 21, LLC, FFP Project 96, LLC...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-23

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project Nos. 14260-000, 14264-000, 14267-000, 14273-000] Lock+ Hydro Friends Fund XII, BOST2, LLC, Riverbank Hydro No. 21, LLC, FFP Project... Greene and Hale counties, Alabama. The applications were filed by Lock+ Hydro Friends Fund XII for...

  8. 76 FR 73614 - Lock Hydro Friends Fund XII; BOST2 LLC; Riverbank Hydro No. 21 LLC; FFP Project 96 LLC; Notice of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-29

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project Nos. 14260-000; 14264-000; 14267-000; 14273-000] Lock Hydro Friends Fund XII; BOST2 LLC; Riverbank Hydro No. 21 LLC; FFP Project 96..., Motions To Intervene, and Competing Applications On September 1, 2011, Lock Hydro Friends Fund XII (Lock...

  9. 78 FR 57796 - Safety Zone; Pro Hydro-X Tour, Atlantic Ocean, Islamorada, FL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-20

    ... 1625-AA00 Safety Zone; Pro Hydro-X Tour, Atlantic Ocean, Islamorada, FL AGENCY: Coast Guard, DHS... waters of the Atlantic Ocean, Islamorada, Florida during the Pro Hydro- X Tour. The Pro Hydro-X Tour is a... course for each race. The Pro Hydro-X Tour is scheduled to take place on September 20, 21, and 22, 2013...

  10. Integrated resource assessment of the Drina River Basin

    NASA Astrophysics Data System (ADS)

    Almulla, Youssef; Ramos, Eunice; Gardumi, Francesco; Howells, Mark

    2017-04-01

    The integrated assessment and management of resources: water, energy, food and environment is of fundamental importance, yet it is a very challenging task especially when it is carried out on the transboundary level. This study focuses on the Drina River Basin (DRB) which is a transboundary basin in South East Europe spreading across Bosnia and Herzegovina, Serbia and Montenegro with a total surface area of 19,982 km2. Water resources from the Drina River Basin are shared among many activities in the basin: domestic water supply, electricity generation, fishery, tourism and, to a lesser extent, irrigation, industry and mining. The region has recently experienced repeated events of floods and droughts causing significant damage to the economy, showing a high vulnerability of the area to the effects of climate change. The assessment of the Drina River Basin is carried out in the framework of the project "Water food energy ecosystems nexus in transboundary river basins" under the UNECE Water Convention. This study aims to: 1) Improve the cooperation in the operation of dams and hydropower plants in the DRB for optimized production; 2) Explore the opportunities generated by electricity trade between the DRB countries as a mechanism to enhance cooperation and as an enabler for the synchronised operation of hydropower plants; 3) Motivate the implementation of energy efficiency measures to reduce the electricity production requirement from hydro and thermal power. In order to achieve that, a multi-country electricity system model was developed for the three countries of Drina river basin using the Open Source energy MOdelling SYStem (OSeMOSYS). The model represents the whole electricity system of each country, with special cascade representation of hydropower plants along Drina river and its tributaries. The results show that, in a scenario of synchronised operation of all power plants along Drina and its tributaries, those downstream can significantly increase their production, without the electricity generation upstream being compromised. Optimising the use of flow-regulation infrastructure could help minimise the negative effects of high or low water flows, thus providing not only flood response but also more efficient hydropower generation. The coordination of different sectors would help in better defining and ensuring environmental flows, taking into consideration the needs of ecosystems and communities. Furthermore, the reduction of electricity demand -due to the implementation of energy efficiency measures- would have a higher impact on reducing the stress on thermal (coal) power plants in the three countries. Finally, the analysis shows that all the three countries have potential to increase trade between themselves and with the other neighboring countries. To which extent, it depends on the electricity surpluses generated by hydro and coal. Improved cooperative management of hydro power plants and water flows as well as effective implementation of energy efficiency measures are proven to increase the electricity surplus.

  11. Energy Keepers Incorporated, U.S. Department of Energy Tribal Energy Program Award #DE-EE0005040 Final Report December 2014

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Gillin, Charmel; Lipscomb, Brian

    This project aimed at supporting one key component of a major multi-step undertaking on the part of the CSKT: the acquisition of the Kerr Hydroelectric project and its subsequent operation as a wholesale power generation facility. This project provided support to kick-start the development of the organizational structure to acquire and operate the facility by acquiring critical expertise necessary for the acquisition by funding in part two key personnel for the first two years of the four-year organizational development process. These individuals provided the Tribes with expert knowledge in the highly specialized areas of resource balancing, power marketing, and hydro-engineering;more » essential prerequisites to the Tribes' ability to build an organization for the operation of the Kerr Project and to securing financial backing for the acquisition. Goals achieved:   • Establishing an efficient and economic conveyance process, and transition plans • Establishing an efficient and effective Tribal wholesale power generation corporation to manage the plant, balance the resources, and market the power from the Kerr Project. The success of this project, which is essential to the Tribes' acquisition of the Kerr Hydroelectric facility, helps to address poverty and unemployment among Tribal members by generating a number of highly skilled and specialized, high-paying Tribal member jobs and providing a stream of income from power sales that will be used for Tribal economic development. Objectives achieved: The project supported the position of Power Plant Operations and Maintenance engineer and power marketing coordinator positions. These are key, in part, to the Tribes' successful acquisition and operation of the facility because they will enable to the Tribes to gain the very specialized expertise required to operate a large wholesale power generation facility. Specific objectives include: Objective 1: Hire a power marketing coordinator to develop and coordinate the appropriate power marketing strategy for the sale of power generated by the operation of Kerr Dam. Objective 2: Hire a staff engineer.« less

  12. The comparison between the acquisition vibration data obtained by different types of transducers for hydraulic turbine head cover

    NASA Astrophysics Data System (ADS)

    Li, Youping; Lu, Jinsong; Cheng, Jian; Yin, Yongzhen; Wang, Jianlan

    2017-04-01

    Based on the summaries of the rules about the vibration measurement for hydro-generator sets with respect to relevant standards, the key issues of the vibration measurement, such as measurement modes, the transducer selection are illustrated. In addition, the problems existing in vibration measurement are pointed out. The actual acquisition data of head cover vertical vibration respectively obtained by seismic transducer and eddy current transducer in site hydraulic turbine performance tests during the rising of the reservoir upstream level in a certain hydraulic power plant are compared. The difference of the data obtained by the two types of transducers and the potential reasons are presented. The application conditions of seismic transducer and eddy current transducer for hydro-generator set vibration measurement are given based on the analysis. Research subjects that should be focused on about the topic discussed in this paper are suggested.

  13. Dynamics of the precessing vortex rope and its interaction with the system at Francis turbines part load operating conditions

    NASA Astrophysics Data System (ADS)

    Favrel, A.; Müller, A.; Landry, C.; Gomes, J.; Yamamoto, K.; Avellan, F.

    2017-04-01

    At part load conditions, Francis turbines experience the formation of a cavitation vortex rope at the runner outlet whose precession acts as a pressure excitation source for the hydraulic circuit. This can lead to hydro-acoustic resonances characterized by high pressure pulsations, as well as torque and output power fluctuations. This study highlights the influence of the discharge factor on both the vortex parameters and the pressure excitation source by performing Particle Image Velocimetry (PIV) and pressure measurements. Moreover, it is shown that the occurrence of hydro-acoustic resonances in cavitation conditions mainly depend on the swirl degree of the flow independently of the speed factor. Empirical laws linking both natural and precession frequencies with the operating parameters of the machine are, then, derived, enabling the prediction of resonance conditions on the complete part load operating range of the turbine.

  14. Preliminary investigation of some large landslides triggered by the 2008 Wenchuan earthquake, Sichuan Province, China

    USGS Publications Warehouse

    Wang, F.; Cheng, Q.; Highland, L.; Miyajima, M.; Wang, Hongfang; Yan, C.

    2009-01-01

    The M s 8.0 Wenchuan earthquake or "Great Sichuan Earthquake" occurred at 14:28 p.m. local time on 12 May 2008 in Sichuan Province, China. Damage by earthquake-induced landslides was an important part of the total earthquake damage. This report presents preliminary observations on the Hongyan Resort slide located southwest of the main epicenter, shallow mountain surface failures in Xuankou village of Yingxiu Town, the Jiufengchun slide near Longmenshan Town, the Hongsong Hydro-power Station slide near Hongbai Town, the Xiaojiaqiao slide in Chaping Town, two landslides in Beichuan County-town which destroyed a large part of the town, and the Donghekou and Shibangou slides in Qingchuan County which formed the second biggest landslide lake formed in this earthquake. The influences of seismic, topographic, geologic, and hydro-geologic conditions are discussed. ?? 2009 Springer-Verlag.

  15. Modelling energy production by small hydro power plants in collective irrigation networks of Calabria (Southern Italy)

    NASA Astrophysics Data System (ADS)

    Zema, Demetrio Antonio; Nicotra, Angelo; Tamburino, Vincenzo; Marcello Zimbone, Santo

    2017-04-01

    The availability of geodetic heads and considerable water flows in collective irrigation networks suggests the possibility of recovery potential energy using small hydro power plants (SHPP) at sustainable costs. This is the case of many Water Users Associations (WUA) in Calabria (Southern Italy), where it could theoretically be possible to recovery electrical energy out of the irrigation season. However, very few Calabrian WUAs have currently built SHPP in their irrigation networks and thus in this region the potential energy is practically fully lost. A previous study (Zema et al., 2016) proposed an original and simple model to site turbines and size their power output as well as to evaluate profits of SHPP in collective irrigation networks. Applying this model at regional scale, this paper estimates the theoretical energy production and the economic performances of SHPP installed in collective irrigation networks of Calabrian WUAs. In more detail, based on digital terrain models processed by GIS and few parameters of the water networks, for each SHPP the model provides: (i) the electrical power output; (iii) the optimal water discharge; (ii) costs, revenues and profits. Moreover, the map of the theoretical energy production by SHPP in collective irrigation networks of Calabria was drawn. The total network length of the 103 water networks surveyed is equal to 414 km and the total geodetic head is 3157 m, of which 63% is lost due to hydraulic losses. Thus, a total power output of 19.4 MW could theoretically be installed. This would provide an annual energy production of 103 GWh, considering SHPPs in operation only out of the irrigation season. The single irrigation networks have a power output in the range 0.7 kW - 6.4 MW. However, the lowest SHPPs (that is, turbines with power output under 5 kW) have been neglected, because the annual profit is very low (on average less than 6%, Zema et al., 2016). On average each irrigation network provides an annual revenue from electrical energy sale of about 103000 €. Even though this revenue may appear quite low, it represents an important share of the annual WUA income. For the entire region, the total revenues from recovery energy in collective irrigation networks through SHPPs have been estimated in about 12 million Euros; investment and operating costs have been evaluated by parametric equations and the total profit theoretically available for each WUA has been quantified. This study has shown the economic opportunity of integrating SHPP in existing collecting irrigation networks of WUAs, in view of providing additional economic resources for users and enhancing the exploitation of a renewable energy source. REFERENCE Zema D.A., Nicotra A., Tamburino V., Zimbone S.M. 2016. A simple method to evaluate the technical and economic feasibility of micro hydro power plants in existing irrigation systems. Renewable Energy 85, 498-506. DOI: 10.1016/j.renene.2015.06.066.

  16. Dual stator winding variable speed asynchronous generator: optimal design and experiments

    NASA Astrophysics Data System (ADS)

    Tutelea, L. N.; Deaconu, S. I.; Popa, G. N.

    2015-06-01

    In the present paper is carried out a theoretical and experimental study of dual stator winding squirrel cage asynchronous generator (DSWA) behavior in the presence of saturation regime (non-sinusoidal) due to the variable speed operation. The main aims are the determination of the relations of calculating the equivalent parameters of the machine windings to optimal design using a Matlab code. Issue is limited to three phase range of double stator winding cage-induction generator of small sized powers, the most currently used in the small adjustable speed wind or hydro power plants. The tests were carried out using three-phase asynchronous generator having rated power of 6 [kVA].

  17. Electrifying Alaska

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Reinemer, V.

    Alaska's diverse systems for electric power include only 4% by private utilities. Large distances and small markets make transmission impractical for the most part. Rates are variable, although the state average is low. Energy sources, except nuclear, are abundant: half the US coal reserves are in Alaska. In addition, it has geothermal, tidal, biomass, solar, wind, and hydroelectric power. Energy construction and study programs are centered in the Alaska Power Authority and include using waste heat from village diesel generators. Hydro potential is good, but access, distances, and environmental effects must be considered. The Terror Lake, Tyee Lake, Swan Lake,more » and Susitna projects are described and transmission construction, including the 345-kW Railbelt intertie, is discussed. 1 figure.« less

  18. Monitoring River Water Levels from Space: Quality Assessment of 20 Years of Satellite Altimetry Data

    NASA Astrophysics Data System (ADS)

    Bercher, Nicolas; Kosuth, Pascal

    2013-09-01

    This paper presents the results of 20 years of validation of altimetry data for the monitoring of river water levels using a standardized method. The method was initially developed by Cemagref (2006-2011, [5, 6, 3]), now Irste ´a, its implementation is now pursued at LEGOS.Our initial statement was: "what if someone1 wants to use satellite measurements of river water levels ?" The obvious question that comes to mind is "what the quality of the data ?". Moreover, there's also a need - a demand from data producers, to monitor products quality in a standardized fashion.We addressed such questions and have developped a method to assess the quality of, so called, "Alti-Hydro Products". The method was implemented for the following Alti-Hydro products (and automatically derived from a L2 product*) : AVISO* (Topex/Poseidon, Jason-2), CASH project (Topex/Poseidon), HydroWeb (Topex/Poseidon, ENVISAT), River & Lake Hydrology (ERS-2, ENVISAT) and PISTACH* (Jason-2).

  19. 76 FR 67177 - Riverbank Hydro No. 18 LLC, Lock Hydro Friends Fund XXXV, FFP Project 57 LLC; Notice of Competing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-31

    ...-000] Riverbank Hydro No. 18 LLC, Lock Hydro Friends Fund XXXV, FFP Project 57 LLC; Notice of Competing... Competing Applications On May 2, 2011, Riverbank Hydro No. 18 LLC (Riverbank), and on May 3, 2011, Lock... notice. Competing applications and notices of intent must meet the requirements of 18 CFR 4.36. Comments...

  20. 78 FR 22808 - Special Local Regulations; Pro Hydro-X Tour, Lake Dora; Tavares, FL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-17

    ...-AA08 Special Local Regulations; Pro Hydro-X Tour, Lake Dora; Tavares, FL AGENCY: Coast Guard, DHS... regulation on the waters on Lake Dora in Tavares, Florida during the Pro Hydro-X Tour, a series of high-speed... Hydro-X Tour, a series of high-speed personal watercraft races. The Pro Hydro-X Tour will be held on...

  1. 78 FR 42560 - In the Matter of Korea Hydro and Nuclear Power, Co., Ltd. and All Other Persons Who Seek or...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-16

    ..., within 20 days of the date of this Order, submit the fingerprints of one individual whom (a) it nominates... official.\\2\\ KHNP may, at the same time or later, submit the fingerprints of other individuals to whom it seeks to grant access to SGI. Fingerprints shall be submitted and reviewed in accordance with the...

  2. Hydropower generation, flood control and dam cascades: A national assessment for Vietnam

    NASA Astrophysics Data System (ADS)

    Nguyen-Tien, Viet; Elliott, Robert J. R.; Strobl, Eric A.

    2018-05-01

    Vietnam is a country with diverse terrain and climatic conditions and a dependency on hydropower for a significant proportion of its power needs and as such, is particularly vulnerable to changes in climate. In this paper we apply SWAT (Soil and Water Assessment Tool) derived discharge simulation results coupled with regression analysis to estimate the performance of hydropower plants for Vietnam between 1995 and mid-2014 when both power supply and demand increased rapidly. Our approach is to examine the watershed formed from three large inter-boundary basins: The Red River, the Vietnam Coast and the Lower Mekong River, which have a total area of 977,964 km2. We then divide this area into 7,887 sub-basins with an average area of 131.6 km2 (based on level 12 of HydroSHEDS/HydroBASINS datasets) and 53,024 Hydrological Response Units (HRUs). Next we simulate river flow for the 40 largest hydropower plants across Vietnam. Our validation process demonstrates that the simulated flows are significantly correlated with the gauged inflows into these dams and are able to serve as a good proxy for the inflows into hydropower dams in our baseline energy regression, which captures 87.7% of the variation in monthly power generation. In other results we estimate that large dams sacrifice on average around 18.2% of their contemporaneous production for the purpose of flood control. When we assess Vietnam's current alignment of dams we find that the current cascades of large hydropower dams appear to be reasonably efficient: each MWh/day increase in upstream generation adds 0.146 MWh/day to downstream generation. The study provides evidence for the multiple benefits of a national system of large hydropower dams using a cascade design. Such a system may help overcome future adverse impacts from changes in climate conditions. However, our results show that there is still room for improvement in the harmonization of cascades in some basins. Finally, possible adverse hydro-ecological impacts due to the proliferation of large upstream dams, including those located beyond Vietnam's border, need to be carefully considered.

  3. Electrodeposition to construct free-standing chitosan/layered double hydroxides hydro-membrane for electrically triggered protein release.

    PubMed

    Zhao, Pengkun; Zhao, Yanan; Xiao, Ling; Deng, Hongbing; Du, Yumin; Chen, Yun; Shi, Xiaowen

    2017-10-01

    In this study, we report the electrodeposition of a chitosan/layered double hydroxides (LDHs) hydro-membrane for protein release triggered by an electrical signal. The electrodeposition was performed in a chitosan and insulin loaded LDHs suspension in the absence of salt. A free-standing chitosan/LDHs hydro-membrane was generated on the electrode with improved mechanical properties, which is dramatically different from the weak hydrogel deposited in the presence of salt. The amount of LDHs in the hydro-membrane affects the optical transmittance and multilayered structure of the hybrid membrane. Compared to the weak chitosan/LDHs hydrogel, the hydro-membrane has a higher insulin loading capacity and the release of insulin is relatively slow. By biasing electrical potentials to the hydro-membrane, the release behavior of insulin can be adjusted accordingly. In addition, the chitosan/LDHs hydro-membrane showed no toxicity to cells. Our results provide a facile method to construct a chitosan/LDHs hybrid multilayered hydro-membrane and suggest the great potential of the hydro-membrane in controlled protein release. Copyright © 2017 Elsevier B.V. All rights reserved.

  4. BPA Facts

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    None

    The Bonneville Power Administration is a federal nonprofit power marketing administration based in the Pacific Northwest . Although BPA is part of the U .S . Department of Energy, it is self-funding and covers its costs by selling its products and services . BPA markets wholesale electrical power from 31 federal hydro projects in the Columbia River Basin, one nonfederal nuclear plant and several small nonfederal power plants . The dams are operated by the U .S . Army Corps of Engineers and the Bureau of Reclamation . About 30 percent of the electric power used in the Northwest comesmore » from BPA . BPA’s resources — primarily hydroelectric — make its power nearly carbon free . BPA also operates and maintains about three- fourths of the high-voltage transmission in its service territory . BPA’s service territory includes Idaho, Oregon, Washington, western Montana and small parts of eastern Montana, California, Nevada, Utah and Wyoming . BPA promotes energy efficiency, renewable resources and new technologies that improve its ability to deliver on its mission . BPA also funds regional efforts to protect and enhance fish and wildlife populations affected by hydropower development in the Columbia River Basin . BPA is committed to public service and seeks to make its decisions in a manner that provides opportunities for input from stakeholders . In its vision statement, BPA dedicates itself to providing high system reliability, low rates consistent with sound business principles, environmental stewardship and accountability« less

  5. KO(t)Bu-Mediated Coupling of Indoles and [60]Fullerene: Transition-Metal-Free and General Synthesis of 1,2-(3-Indole)(hydro)[60]fullerenes.

    PubMed

    Li, Fei; Haj Elhussin, Imad Elddin; Li, Shengli; Zhou, Hongping; Wu, Jieying; Tian, Yupeng

    2015-11-06

    Direct coupling of indoles with C60 has been achieved for the first time. Transition-metal-free KO(t)Bu-mediated reaction of indoles to [60]fullerene has been developed as a practical and efficient method for the synthesis of various 1,2-(3-indole)(hydro)[60]fullerenes that are otherwise difficult to direct synthesize in an efficient and selective manner. This methodology tolerates sensitive functionalities such as chloro, ester, and nitro on indole and builds molecular complexity rapidly, with most reactions reaching completion in <1 h. A plausible reaction mechanism is proposed to explain the high regioselectivity at the 3-position of the indoles and the formation of 1,2-(3-indole)(hydro)[60]fullerenes.

  6. A computational framework for supporting environmental ...

    EPA Pesticide Factsheets

    GLIMPSE is a effort in which the U.S. EPA Office of Research and Development is developing tools to support long-term, coordinated environmental, climate, and energy planning. The purpose of this presentation is to discuss the underlying science questions; provide an overview of current and future GLIMPSE capabilities; introduce GCAM, the computational engine behind GLIMPSE; and, highlight relevant activities in China, including the ABaCAS framework and GCAM-China. A group of Chinese visitors will be on the EPA RTP campus July 28, 9-noon. The visitors are from the PowerChina Huadong Engineering Corporation (weblink is here: http://www.ecidi.com/en/introduction.aspx) and are in US for a training program at Duke. The group is interested in broad management topics such as international business development and managing environmental projects as well as interacting with practitioners to understand “real world” case studies and issues. Their background is primarily related to hydro power but their corporate mission is “Providing engineering services and promoting harmonious development between Man and Nature,” implying a broad interest in the environment. Several researchers with projects with connections to China have been asked to provide an overview of their research to the visitors. I will be talking about the GLIMPSE air-climate-energy decision support project.

  7. Fuel and Combustor Concerns for Future Commercial Combustors

    NASA Technical Reports Server (NTRS)

    Chang, Clarence T.

    2017-01-01

    Civil aircraft combustor designs will move from rich-burn to lean-burn due to the latter's advantage in low NOx and nvPM emissions. However, the operating range of lean-burn is narrower, requiring premium mixing performance from the fuel injectors. As the OPR increases, the corresponding combustor inlet temperature increase can benefit greatly with fuel composition improvements. Hydro-treatment can improve coking resistance, allowing finer fuel injection orifices to speed up mixing. Selective cetane number control across the fuel carbon-number distribution may allow delayed ignition at high power while maintaining low-power ignition characteristics.

  8. Estimates of outage costs of electricity in Pakistan

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Ashraf, J.; Sabih, F.

    1993-12-31

    This article estimates outage costs of electricity for each of the four provinces in Pakistan (Punjab, North-West Frontier Province, Baluchistan, and Sind). The term {open_quotes}power outage{close_quotes} refers to all problems associated with electricity supply, such as voltage drops (brownouts), power failures (blackouts), and load shedding. The most significant of these in Pakistan is load shedding when power supply to different consumers is shut off during different times of the day, especially during peak hours when the pressure on the system is the highest. Power shortages mainly arise during the low-water months when the effective capacity of hydropower plants drops significantly.more » This decline in power supplied by hydro plants cannot be made up by operating thermal power plants because of the limited availability of gas and the high cost of alternative fuels required for the operation of gas turbines.« less

  9. Large scale hydro-economic modelling for policy support

    NASA Astrophysics Data System (ADS)

    de Roo, Ad; Burek, Peter; Bouraoui, Faycal; Reynaud, Arnaud; Udias, Angel; Pistocchi, Alberto; Lanzanova, Denis; Trichakis, Ioannis; Beck, Hylke; Bernhard, Jeroen

    2014-05-01

    To support European Union water policy making and policy monitoring, a hydro-economic modelling environment has been developed to assess optimum combinations of water retention measures, water savings measures, and nutrient reduction measures for continental Europe. This modelling environment consists of linking the agricultural CAPRI model, the LUMP land use model, the LISFLOOD water quantity model, the EPIC water quality model, the LISQUAL combined water quantity, quality and hydro-economic model, and a multi-criteria optimisation routine. With this modelling environment, river basin scale simulations are carried out to assess the effects of water-retention measures, water-saving measures, and nutrient-reduction measures on several hydro-chemical indicators, such as the Water Exploitation Index (WEI), Nitrate and Phosphate concentrations in rivers, the 50-year return period river discharge as an indicator for flooding, and economic losses due to water scarcity for the agricultural sector, the manufacturing-industry sector, the energy-production sector and the domestic sector, as well as the economic loss due to flood damage. Recently, this model environment is being extended with a groundwater model to evaluate the effects of measures on the average groundwater table and available resources. Also, water allocation rules are addressed, while having environmental flow included as a minimum requirement for the environment. Economic functions are currently being updated as well. Recent development and examples will be shown and discussed, as well as open challenges.

  10. Integrated Hydrographical Basin Management. Study Case - Crasna River Basin

    NASA Astrophysics Data System (ADS)

    Visescu, Mircea; Beilicci, Erika; Beilicci, Robert

    2017-10-01

    Hydrographical basins are important from hydrological, economic and ecological points of view. They receive and channel the runoff from rainfall and snowmelt which, when adequate managed, can provide fresh water necessary for water supply, irrigation, food industry, animal husbandry, hydrotechnical arrangements and recreation. Hydrographical basin planning and management follows the efficient use of available water resources in order to satisfy environmental, economic and social necessities and constraints. This can be facilitated by a decision support system that links hydrological, meteorological, engineering, water quality, agriculture, environmental, and other information in an integrated framework. In the last few decades different modelling tools for resolving problems regarding water quantity and quality were developed, respectively water resources management. Watershed models have been developed to the understanding of water cycle and pollution dynamics, and used to evaluate the impacts of hydrotechnical arrangements and land use management options on water quantity, quality, mitigation measures and possible global changes. Models have been used for planning monitoring network and to develop plans for intervention in case of hydrological disasters: floods, flash floods, drought and pollution. MIKE HYDRO Basin is a multi-purpose, map-centric decision support tool for integrated hydrographical basin analysis, planning and management. MIKE HYDRO Basin is designed for analyzing water sharing issues at international, national and local hydrographical basin level. MIKE HYDRO Basin uses a simplified mathematical representation of the hydrographical basin including the configuration of river and reservoir systems, catchment hydrology and existing and potential water user schemes with their various demands including a rigorous irrigation scheme module. This paper analyzes the importance and principles of integrated hydrographical basin management and develop a case study for Crasna river basin, with the use of MIKE HYDRO Basin advanced hydroinformatic tool for integrated hydrographical basin analysis, planning and management.

  11. HydroApps: An R package for statistical simulation to use in regional analysis

    NASA Astrophysics Data System (ADS)

    Ganora, D.

    2013-12-01

    The HydroApps package is a newborn R extension initially developed to support the use of a recent model for flood frequency estimation developed for applications in Northwestern Italy; it also contains some general tools for regional analyses and can be easily extended to include other statistical models. The package is currently at an experimental level of development. The HydroApps is a corollary of the SSEM project for regional flood frequency analysis, although it was developed independently to support various instances of regional analyses. Its aim is to provide a basis for interplay between statistical simulation and practical operational use. In particular, the main module of the package deals with the building of the confidence bands of flood frequency curves expressed by means of their L-moments. Other functions include pre-processing and visualization of hydrologic time series, analysis of the optimal design-flood under uncertainty, but also tools useful in water resources management for the estimation of flow duration curves and their sensitivity to water withdrawals. Particular attention is devoted to the code granularity, i.e. the level of detail and aggregation of the code: a greater detail means more low-level functions, which entails more flexibility but reduces the ease of use for practical use. A balance between detail and simplicity is necessary and can be resolved with appropriate wrapping functions and specific help pages for each working block. From a more general viewpoint, the package has not really and user-friendly interface, but runs on multiple operating systems and it's easy to update, as many other open-source projects., The HydroApps functions and their features are reported in order to share ideas and materials to improve the ';technological' and information transfer between scientist communities and final users like policy makers.

  12. Mitigation of negative ecological and socio-economic impacts of the Diama dam on the Senegal River Delta wetland (Mauritania), using a model based decision support system

    NASA Astrophysics Data System (ADS)

    Duvail, S.; Hamerlynck, O.

  13. 76 FR 67174 - Arkansas Electric Cooperative Corp., Riverbank Hydro No. 9 LLC, Solia 3 Hydroelectric LLC, Lock...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-31

    ... Hydroelectric LLC, Lock Hydro Friends Fund XLV, FFP Project 2 LLC; Notice of Competing Preliminary Permit... (Riverbank) and Solia 3 Hydroelectric LLC (Solia) and on May 3, 2011, Lock Hydro Friends Fund XLV (Lock Hydro...

  14. Mapping the Decadal Spatio-temporal Variation of Social Vulnerability to Hydro-climatic Extremes over India

    NASA Astrophysics Data System (ADS)

    H, V.; Karmakar, S.; Ghosh, S.

    2015-12-01

    Human induced global warming is unequivocal and observational studies shows that, this has led to increase in the intensity and frequency of hydro-climatic extremes, most importantly precipitation extreme, heat waves and drought; and also is expected to be increased in the future. The occurrence of these extremes have a devastating effects on nation's economy and on societal well-being. Previous studies on India provided the evidences of significant changes in the precipitation extreme from pre- to post-1950, with huge spatial heterogeneity; and projections of heat waves indicated that significant part of India will experience heat stress conditions in the future. Under these circumstance, it is necessary to develop a nation-wide social vulnerability map to scrutinize the adequacy of existing emergency management. Yet there has been no systematic past efforts on mapping social vulnerability to hydro-climatic extremes at nation-wide for India. Therefore, immediate efforts are required to quantify the social vulnerability, particularly developing country like India, where major transformations in demographic characteristics and development patterns are evident during past decades. In the present study, we perform a comprehensive spatio-temporal social vulnerability analysis by considering multiple sensitive indicators for three decades (1990-2010) which identifies the hot-spots, with higher vulnerability to hydro-climatic extremes. The population datasets are procured from Census of India and the meteorological datasets are obtained from India Meteorological Department (IMD). The study derives interesting results on decadal changes of spatial distribution of risk, considering social vulnerability and hazard to extremes.

  15. Decision support for the management of water resources at Sub-middle of the São Francisco river basin in Brazil using integrated hydro-economic modeling and scenarios for land use changes

    NASA Astrophysics Data System (ADS)

    Moraes, M. G. A.; Souza da Silva, G.

    2016-12-01

    Hydro-economic models can measure the economic effects of different operating rules, environmental restrictions, ecosystems services, technical constraints and institutional constraints. Furthermore, water allocation can be improved by considering economical criteria's. Likewise, climate and land use change can be analyzed to provide resilience. We developed and applied a hydro-economic optimization model to determine the optimal water allocation of main users in the Lower-middle São Francisco River Basin in Northeast (NE) Brazil. The model uses demand curves for the irrigation projects, small farmers and human supply, rather than fixed requirements for water resources. This study analyzed various constraints and operating alternatives for the installed hydropower dams in economic terms. A seven-year period (2000-2006) with water scarcity in the past has been selected to analyze the water availability and the associated optimal economic water allocation. The used constraints are technical, socioeconomic and environmental. The economically impacts of scenarios like prioritizing human consumption, impacts of the implementation of the São Francisco river transposition, human supply without high distribution losses, environmental hydrographs, forced reservoir level control, forced reduced reservoir capacity, alteration of lower flow restriction were analyzed. The results in this period show that scarcity costs related ecosystem service and environmental constraints are significant, and have major impacts (increase of scarcity cost) for consumptive users like irrigation projects. In addition, institutional constraints such as prioritizing human supply, minimum release limits downstream of the reservoirs and the implementation of the transposition project impact the costs and benefits of the two main economic sectors (irrigation and power generation) in the region of the Lower-middle of the São Francisco river basin. Scarcity costs for irrigation users generally increase more (in percentage terms) than the other users associated to environmental and institutional constraints.

  16. Intercomparison of Streamflow Simulations between WRF-Hydro and Hydrology Laboratory-Research Distributed Hydrologic Model Frameworks

    NASA Astrophysics Data System (ADS)

    KIM, J.; Smith, M. B.; Koren, V.; Salas, F.; Cui, Z.; Johnson, D.

    2017-12-01

    The National Oceanic and Atmospheric Administration (NOAA)-National Weather Service (NWS) developed the Hydrology Laboratory-Research Distributed Hydrologic Model (HL-RDHM) framework as an initial step towards spatially distributed modeling at River Forecast Centers (RFCs). Recently, the NOAA/NWS worked with the National Center for Atmospheric Research (NCAR) to implement the National Water Model (NWM) for nationally-consistent water resources prediction. The NWM is based on the WRF-Hydro framework and is run at a 1km spatial resolution and 1-hour time step over the contiguous United States (CONUS) and contributing areas in Canada and Mexico. In this study, we compare streamflow simulations from HL-RDHM and WRF-Hydro to observations from 279 USGS stations. For streamflow simulations, HL-RDHM is run on 4km grids with the temporal resolution of 1 hour for a 5-year period (Water Years 2008-2012), using a priori parameters provided by NOAA-NWS. The WRF-Hydro streamflow simulations for the same time period are extracted from NCAR's 23 retrospective run of the NWM (version 1.0) over CONUS based on 1km grids. We choose 279 USGS stations which are relatively less affected by dams or reservoirs, in the domains of six different RFCs. We use the daily average values of simulations and observations for the convenience of comparison. The main purpose of this research is to evaluate how HL-RDHM and WRF-Hydro perform at USGS gauge stations. We compare daily time-series of observations and both simulations, and calculate the error values using a variety of error functions. Using these plots and error values, we evaluate the performances of HL-RDHM and WRF-Hydro models. Our results show a mix of model performance across geographic regions.

  17. An End-to-End System to Enable Quick, Easy and Inexpensive Deployment of Hydrometeorological Stations

    NASA Astrophysics Data System (ADS)

    Celicourt, P.; Piasecki, M.

    2014-12-01

    The high cost of hydro-meteorological data acquisition, communication and publication systems along with limited qualified human resources is considered as the main reason why hydro-meteorological data collection remains a challenge especially in developing countries. Despite significant advances in sensor network technologies which gave birth to open hardware and software, low-cost (less than $50) and low-power (in the order of a few miliWatts) sensor platforms in the last two decades, sensors and sensor network deployment remains a labor-intensive, time consuming, cumbersome, and thus expensive task. These factors give rise for the need to develop a affordable, simple to deploy, scalable and self-organizing end-to-end (from sensor to publication) system suitable for deployment in such countries. The design of the envisioned system will consist of a few Sensed-And-Programmed Arduino-based sensor nodes with low-cost sensors measuring parameters relevant to hydrological processes and a Raspberry Pi micro-computer hosting the in-the-field back-end data management. This latter comprises the Python/Django model of the CUAHSI Observations Data Model (ODM) namely DjangODM backed by a PostgreSQL Database Server. We are also developing a Python-based data processing script which will be paired with the data autoloading capability of Django to populate the DjangODM database with the incoming data. To publish the data, the WOFpy (WaterOneFlow Web Services in Python) developed by the Texas Water Development Board for 'Water Data for Texas' which can produce WaterML web services from a variety of back-end database installations such as SQLite, MySQL, and PostgreSQL will be used. A step further would be the development of an appealing online visualization tool using Python statistics and analytics tools (Scipy, Numpy, Pandas) showing the spatial distribution of variables across an entire watershed as a time variant layer on top of a basemap.

  18. 75 FR 48664 - Turnbull Hydro, LLC; Notice of Availability of Environmental Assessment

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-11

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 12597-021; Project No. 12598-019] Turnbull Hydro, LLC; Notice of Availability of Environmental Assessment August 4, 2010. In... Register [FR] 47897), the Office of Energy Projects has reviewed Turnbull Hydro, LLC's (Turnbull Hydro's...

  19. 77 FR 55466 - Barren River Lake Hydro LLC; Notice Soliciting Scoping Comments

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-10

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 13022-003] Barren River Lake Hydro LLC; Notice Soliciting Scoping Comments Take notice that the following hydroelectric..., 2012. d. Applicant: Barren River Lake Hydro LLC (Barren River Hydro). e. Name of Project: Barren River...

  20. Tentative Study on Performance of Darriues-Type Hydroturbine Operated in Small Open Water Channel

    NASA Astrophysics Data System (ADS)

    Matsushita, D.; Moriyama, R.; Nakashima, K.; Watanabe, S.; Okuma, K.; Furukawa, A.

    2014-03-01

    The development of small hydropower is one of the realistic and preferable utilizations of renewable energy, but the extra-low head hydropower less than 2 m is almost undeveloped yet for some reasons. The authors have developed several types of Darrieus-type hydro-turbine system, and among them, the Darrieus-turbine with a wear and a nozzle installed upstream of turbine is so far in success to obtain more output power, i.e. more shaft torque, by gathering all water into the turbine. However, there can several cases exist, in which installing the wear covering all the flow channel width is unrealistic. Then, in the present study, the hydraulic performances of Darrieus-type hydro-turbine with the inlet nozzle is investigated, putting alone in a small open channel without upstream wear. In the experiment, the five-bladed Darrieus-type runner with the pitch-circle diameter of 300 mm and the blade span of 300 mm is vertically installed in the open channel with the width of 1,200 mm. The effectiveness of the shape of the inlet nozzle is also examined using two types of two-dimensional symmetric nozzle, the straight line nozzle (SL nozzle) with the converging angle of 45 degrees and the half diameter curved nozzle (HD nozzle) whose radius is a half diameter of runner pitch circle. Inlet and outlet nozzle widths are in common for the both nozzles, which are 540 mm and 240 mm respectively. All the experiments are carried out under the conditions with constant flow rate and downstream water level, and performances are evaluated by measured output torque and the measured head difference between the water levels upstream and downstream of the turbine. As a result, it is found that the output power is remarkably increased by installing the inlet nozzle, and the turbine with SL nozzle produces larger power than that with HD nozzle. However, the peak efficiency is deteriorated in both cases. The speed ratio defined by the rotor speed divided by the downstream water velocity at the peak efficiency is larger in both cases with the inlet nozzle, partly due to the increase of inflow velocity into the turbine. In order to understand the cause of the differences of power, i.e. torque characteristics of the turbine with SL and HD nozzles, twodimensional CFD simulation is carried out. It is found that the instantaneous torque variation is important for the overall turbine performances, indicating the possibility of further performance improvement through the optimization of nozzle geometry.

  1. High Resolution Hydro-climatological Projections for Western Canada

    NASA Astrophysics Data System (ADS)

    Erler, Andre Richard

    Accurate identification of the impact of global warming on water resources and hydro-climatic extremes represents a significant challenge to the understanding of climate change on the regional scale. Here an analysis of hydro-climatic changes in western Canada is presented, with specific focus on the Fraser and Athabasca River basins and on changes in hydro-climatic extremes. The analysis is based on a suite of simulations designed to characterize internal variability, as well as model uncertainty. A small ensemble of Community Earth System Model version 1 (CESM1) simulations was employed to generate global climate projections, which were downscaled to 10 km resolution using the Weather Research and Forecasting model (WRF V3.4.1) with several sets of physical parameterizations. Downscaling was performed for a historical validation period and a mid- and end-21st-century projection period, using the RCP8.5 greenhouse gas trajectory. Daily station observations and monthly gridded datasets were used for validation. Changes in hydro-climatic extremes are characterized using Extreme Value Analysis. A novel method of aggregating data from climatologically similar stations was employed to increase the statistical power of the analysis. Changes in mean and extreme precipitation are found to differ strongly between seasons and regions, but (relative) changes in extremes generally follow changes in the (seasonal) mean. At the end of the 21st century, precipitation and precipitation extremes are projected to increase by 30% at the coast in fall and land-inwards in winter, while the projected increase in summer precipitation is smaller and changes in extremes are often not statistically significant. Reasons for the differences between seasons, the role of precipitation recycling in atmospheric water transport, and the sensitivity to physics parameterizations are discussed. Major changes are projected for the Fraser River basin, including earlier snowmelt and a 50% reduction in peak runoff. Combined with higher evapotranspiration, a significant increase in late summer drought risk is likely, but increasing fall precipitation might also increase the risk of moderate flooding. In the Athabasca River basin, increasing winter precipitation and snowmelt is balanced by increasing evapotranspiration in summer and no significant change in flood or drought risk is projected.

  2. Space and time reconstruction of the precessing vortex core in Francis turbine draft tube by 2D-PIV

    NASA Astrophysics Data System (ADS)

    Favrel, A.; Müller, A.; Landry, C.; Yamamoto, K.; Avellan, F.

    2016-11-01

    Francis turbines operating at part load conditions experience the development of a high swirling flow at the runner outlet, giving rise to the development of a cavitation precessing vortex rope in the draft tube. The latter acts as an excitation source for the hydro-mechanical system and may jeopardize the system stability if resonance conditions are met. Although many aspects of the part load issue have been widely studied in the past, the accurate stability analysis of hydro-power plants remains challenging. A better understanding of the vortex rope dynamics in a wide range of operating conditions is an important step towards the prediction and the transposition of the pressure fluctuations from reduced to prototype scale. For this purpose, an investigation of the flow velocity fields at the outlet of a Francis turbine reduced scale physical model operating at part load conditions is performed by means of 2D-PIV in three different horizontal cross-sections of the draft tube cone. The measurements are performed in cavitation-free conditions for three values of discharge factor, comprised between 60% and 81% of the value at the Best Efficiency Point. The present article describes a detailed methodology to properly recover the evolution of the velocity fields during one precession cycle by means of phase averaging. The vortex circulation is computed and the vortex trajectory over one typical precession period is finally recovered for each operating point. It is notably shown that below a given value of the discharge factor, the vortex dynamics abruptly change and loose its periodicity and coherence.

  3. Simulating the impact of glaciations on continental groundwater flow systems: 1. Relevant processes and model formulation

    NASA Astrophysics Data System (ADS)

    Lemieux, J.-M.; Sudicky, E. A.; Peltier, W. R.; Tarasov, L.

    2008-09-01

    In the recent literature, it has been shown that Pleistocene glaciations had a large impact on North American regional groundwater flow systems. Because of the myriad of complex processes and large spatial scales involved during periods of glaciation, numerical models have become powerful tools to examine how ice sheets control subsurface flow systems. In this paper, the key processes that must be represented in a continental-scale 3-D numerical model of groundwater flow during a glaciation are reviewed, including subglacial infiltration, density-dependent (i.e., high-salinity) groundwater flow, permafrost evolution, isostasy, sea level changes, and ice sheet loading. One-dimensional hydromechanical coupling associated with ice loading and brine generation were included in the numerical model HydroGeoSphere and tested against newly developed exact analytical solutions to verify their implementation. Other processes such as subglacial infiltration, permafrost evolution, and isostasy were explicitly added to HydroGeoSphere. A specified flux constrained by the ice sheet thickness was found to be the most appropriate boundary condition in the subglacial environment. For the permafrost, frozen and unfrozen elements can be selected at every time step with specified hydraulic conductivities. For the isostatic adjustment, the elevations of all the grid nodes in each vertical grid column below the ice sheet are adjusted uniformly to account for the Earth's crust depression and rebound. In a companion paper, the model is applied to the Wisconsinian glaciation over the Canadian landscape in order to illustrate the concepts developed in this paper and to better understand the impact of glaciation on 3-D continental groundwater flow systems.

  4. Cascaded H-bridge multilevel inverter for renewable energy generation

    NASA Astrophysics Data System (ADS)

    Pandey, Ravikant; Nath Tripathi, Ravi; Hanamoto, Tsuyoshi

    2016-04-01

    In this paper cascaded H-bridge multilevel inverter (CHBMLI) has been investigated for the application of renewable energy generation. Energy sources like solar, wind, hydro, biomass or combination of these can be manipulated to obtain alternative sources for renewable energy generation. These renewable energy sources have different electrical characteristics like DC or AC level so it is challenging to use generated power by connecting to grid or load directly. The renewable energy source require specific power electronics converter as an interface for conditioning generated power .The multilevel inverter can be utilized for renewable energy sources in two different modes, the power generation mode (stand-alone mode), and compensator mode (statcom). The performance of the multilevel inverter has been compared with two level inverter. In power generation mode CHBMLI supplies the active and reactive power required by the different loads. For operation in compensator mode the indirect current control based on synchronous reference frame theory (SRFT) ensures the grid operating in unity power factor and compensate harmonics and reactive power.

  5. 76 FR 36533 - Bangor Hydro Electric Company; Notice of Request for Waiver

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-22

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. TS11-5-000] Bangor Hydro...(d) of the Commission's regulations, 18 CFR 358.1(d) (2011), Bangor Hydro Electric Company (Bangor Hydro) requests a limited waiver of Part 358 of the Commission's Regulations, Standards of Conduct for...

  6. 78 FR 938 - Burton Creek Hydro Inc., Sollos Energy, LLC'

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-07

    ... Hydro Inc., Sollos Energy, LLC' Notice of Transfer of Exemption 1. By letter filed December 19, 2012, Burton Creek Hydro Inc. informed the Commission that its exemption from licensing for the Burton Creek Hydro Project, FERC No. 7577, originally issued September 25, 1985,\\1\\ has been transferred to Sollos...

  7. Preservation and Enhancement of the American Falls at Niagara.

    DTIC Science & Technology

    1975-01-01

    Niagara Falls are located 19 miles downstream from Lake Erie. Goat Island divides the River into two Originally the Falls were located at the Niagara...years and permanently dewater a relatively uniform sheet of water falls over the crest. the American Falls. Luna Island located in the crest separates the...interbedded layers of limestones, dolomites, sandstones and shales. The enormous force of fallingdiversion tunnels leading to the Ontario Hydro power

  8. 77 FR 56826 - Red River Hydro LLC; Notice of Application Accepted for Filing, Soliciting Motions To Intervene...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-14

    ... generate power using flows between 2,700 and 49,800 cubic feet per second (cfs). If flows are less than 2,700 cfs, all flow would go through the Corps' gates, and the project would then be offline. When flows are greater than 49,800 cfs, the excess flow would be directed through the Corps' gates. m. A copy of...

  9. 3rd Miami international conference on alternative energy sources

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Nejat Veziroglu, T.

    1980-01-01

    The conference includes sessions on solar energy, ocean thermal energy, wind energy, hydro power, nuclear breeders and nuclear fusion, synthetic fuels from coal or wastes, hydrogen production and uses, formulation of workable policies on energy use and energy conservation, heat and energy storage, and energy education. The volume of the proceedings presents the papers and lectures in condensed format grouped by subject under forty-two sessions for 319 presentations.

  10. 77 FR 37031 - Don W. Gilbert Hydro Power, LLC; Notice of Application Tendered for Filing With the Commission...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-20

    ... Internet. See 18 CFR 385.2001(a)(1)(iii) and the instructions on the Commission's Web site http:[sol][sol... following new features: (1) A 8-foot-long, 3-foot-wide, 3-foot-deep drop inlet structure; (2) a 2-foot... available for review at the Commission in the Public Reference Room or may be viewed on the Commission's Web...

  11. Valuing hydrological forecasts for a pumped storage assisted hydro facility

    NASA Astrophysics Data System (ADS)

    Zhao, Guangzhi; Davison, Matt

    2009-07-01

    SummaryThis paper estimates the value of a perfectly accurate short-term hydrological forecast to the operator of a hydro electricity generating facility which can sell its power at time varying but predictable prices. The expected value of a less accurate forecast will be smaller. We assume a simple random model for water inflows and that the costs of operating the facility, including water charges, will be the same whether or not its operator has inflow forecasts. Thus, the improvement in value from better hydrological prediction results from the increased ability of the forecast using facility to sell its power at high prices. The value of the forecast is therefore the difference between the sales of a facility operated over some time horizon with a perfect forecast, and the sales of a similar facility operated over the same time horizon with similar water inflows which, though governed by the same random model, cannot be forecast. This paper shows that the value of the forecast is an increasing function of the inflow process variance and quantifies how much the value of this perfect forecast increases with the variance of the water inflow process. Because the lifetime of hydroelectric facilities is long, the small increase observed here can lead to an increase in the profitability of hydropower investments.

  12. Overview of SPH-ALE applications for hydraulic turbines in ANDRITZ Hydro

    NASA Astrophysics Data System (ADS)

    Rentschler, M.; Marongiu, J. C.; Neuhauser, M.; Parkinson, E.

    2018-02-01

    Over the past 13 years, ANDRITZ Hydro has developed an in-house tool based on the SPH-ALE method for applications in flow simulations in hydraulic turbines. The initial motivation is related to the challenging simulation of free surface flows in Pelton turbines, where highly dynamic water jets interact with rotating buckets, creating thin water jets traveling inside the housing and possibly causing disturbances on the runner. The present paper proposes an overview of industrial applications allowed by the developed tool, including design evaluation of Pelton runners and casings, transient operation of Pelton units and free surface flows in hydraulic structures.

  13. Investigation of Surface Phenomena in Shocked Tin in Converging Geometry

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Rousculp, Christopher L.; Oro, David Michael; Griego, Jeffrey Randall

    2016-04-14

    There is a great interest in RMI as source of ejecta from metal shells. Previous experiments have explored wavelength amplitude (kA) variation but they have a small range of drive pressures and are in planer geometry. Simulations, both MD and hydro, have explored RMI in planer geometry. The ejecta source model from RMI is an area of active algorithm and code development in ASCI-IC Lagrangian Applications Project. PHELIX offers precise, reproducible variable driver for Hydro and material physics diagnoses with proton radiography.

  14. The use of hydro-dynamic models in the practice-oriented education of engineering students

    NASA Astrophysics Data System (ADS)

    Sziebert, J.; Zellei, L.; Tamás, E. A.

    2009-04-01

    Management tasks related to open channel flows became rather comprehensive and multi-disciplinary, particularly with the predominancy of nature management aspects. The water regime of our rivers has proven to reach extremities more and more frequently in the past decades. In order to develop and analyse alternative solutions and to handle and resolve conflicts of interests, we apply 1D hydro-dynamic models in education for the explanation of processes and to improve practical skills of our students.

  15. Towards a Managed Aquifer Recharge strategy for Gujarat, India: An economist’s dialogue with hydro-geologists

    NASA Astrophysics Data System (ADS)

    Shah, Tushaar

    2014-10-01

    Gujarat state in Western India exemplifies all challenges of an agrarian economy founded on groundwater overexploitation sustained over decades by perverse energy subsidies. Major consequences are: secular decline in groundwater levels, deterioration of groundwater quality, rising energy cost of pumping, soaring carbon footprint of agriculture and growing financial burden of energy subsidies. In 2009, Government of Gujarat asked the present author, an economist, to chair a Taskforce of senior hydro-geologists and civil engineers to develop and recommend a Managed Aquifer Recharge (MAR) strategy for the state. This paper summarizes the recommended strategy and its underlying logic. It also describes the imperfect fusion of socio-economic and hydro-geologic perspectives that occurred in course of the working of the Taskforce and highlights the need for trans-disciplinary perspectives on groundwater governance.

  16. Hydro-abrasive erosion of hydraulic turbines caused by sediment - a century of research and development

    NASA Astrophysics Data System (ADS)

    Felix, D.; Albayrak, I.; Abgottspon, A.; Boes, R. M.

    2016-11-01

    Hydro-abrasive erosion of hydraulic turbines is an economically important issue due to maintenance costs and production losses, in particular at high- and medium-head run-of- river hydropower plants (HPPs) on sediment laden rivers. In this paper, research and development in this field over the last century are reviewed. Facilities for sediment exclusion, typically sand traps, as well as turbine design and materials have been improved considerably. Since the 1980s, hard-coatings have been applied on Francis and Pelton turbine parts of erosion-prone HPPs and became state-of-the-art. These measures have led to increased times between overhauls and smaller efficiency reductions. Analytical, laboratory and field investigations have contributed to a better processes understanding and quantification of sediment-related effects on turbines. More recently, progress has been made in numerical modelling of turbine erosion. To calibrate, validate and further develop prediction models, more measurements from both physical model tests in laboratories and real-scale data from HPPs are required. Significant improvements to mitigate hydro-abrasive erosion have been achieved so far and development is ongoing. A good collaboration between turbine manufacturers, HPP operators, measuring equipment suppliers, engineering consultants, and research institutes is required. This contributes to the energy- and cost-efficient use of the worldwide hydropower potential.

  17. Influence of guide vane opening on the flow phenomena in a pump turbine during a fast transition from pump mode to generating mode

    NASA Astrophysics Data System (ADS)

    Stens, C.; Riedelbauch, S.

    2017-04-01

    Due to a more fluctuating energy production caused by renewable energies such as wind and solar power, the number of changes between operating points in pumped storage power plants has increased over the last years. To further increase available regulating power, it is desirable to speed up these changes of operation conditions in Hydro units. Previous studies showed that CFD is well capable of predicting the flow phenomena in the machine under unsteady conditions for a large guide vane opening angle. The present paper investigates the benefits of nearly closed guide vanes during the transition. Results are compared between the two different angles as well as between simulation and measurement.

  18. Effects of carbon/graphite fiber contamination on high voltage electrical insulation

    NASA Technical Reports Server (NTRS)

    Garrity, T.; Eichler, C.

    1980-01-01

    The contamination mechanics and resulting failure modes of high voltage electrical insulation due to carbon/graphite fibers were examined. The high voltage insulation vulnerability to carbon/graphite fiber induced failure was evaluated using a contamination system which consisted of a fiber chopper, dispersal chamber, a contamination chamber, and air ducts and suction blower. Tests were conducted to evaluate the effects of fiber length, weathering, and wetness on the insulator's resistance to carbon/graphite fibers. The ability of nuclear, fossil, and hydro power generating stations to maintain normal power generation when the surrounding environment is contaminated by an accidental carbon fiber release was investigated. The vulnerability assessment included only the power plant generating equipment and its associated controls, instrumentation, and auxiliary and support systems.

  19. 77 FR 55212 - North Star Hydro Services CA, LLC; Notice of Preliminary Permit Application Accepted for Filing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-07

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 14379-000] North Star Hydro..., Motions To Intervene, and Competing Applications On March 30, 2012, North Star Hydro Services CA, LLC... approximately 3.8 gigawatthours. Applicant Contact: David Holland, North Star Hydro Services CA, LLC, 1110 West...

  20. 77 FR 55212 - North Star Hydro Services CA, LLC; Notice of Preliminary Permit Application Accepted for Filing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-07

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 14399-000] North Star Hydro..., Motions to Intervene, and Competing Applications On March 30, 2012, North Star Hydro Services CA, LLC... output would be approximately 4.6 gigawatthours. Applicant Contact: David Holland, North Star Hydro...

  1. 78 FR 48670 - Rivermill Hydroelectric, Inc., New Hampshire Hydro Associates; Notice of Transfer of Exemption

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-09

    ... Hydroelectric, Inc., New Hampshire Hydro Associates; Notice of Transfer of Exemption August 5, 2013. 1. By letter filed July 19, 2013, Rivermill Hydroelectric, Inc. and New Hampshire Hydro Associates informed the... issued September 21, 1988,\\2\\ has been transferred to New Hampshire Hydro Associates. The project is...

  2. 77 FR 29630 - Qualified Hydro 24, LLC; Notice of Scoping Meetings and Environmental Site Review and Soliciting...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-18

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 13843-001] Qualified Hydro... No.: 13843-001. c. Date filed: January 3, 2012. d. Applicant: Qualified Hydro 24, LLC. [[Page 29631...: Ramya Swaminathan, Qualified Hydro 24, LLC, 239 Causeway Street, Suite 300, Boston, MA 02114; (978) 283...

  3. 77 FR 10740 - Lock+ Hydro Friends Fund XVIII, Upper Hydroelectric, LLC, FFP Project 95, LLC, Riverbank Hydro No...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-23

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project Nos. 14261-000, 14268-000, 14277-000, 14281-000] Lock+ Hydro Friends Fund XVIII, Upper Hydroelectric, LLC, FFP Project 95, LLC...-Tombigbee Waterway in Lowndes County, Mississippi. The applications were filed by Lock+ Hydro Friends Fund...

  4. Power System Study for Renewable Energy Interconnection in Malaysia

    NASA Astrophysics Data System (ADS)

    Askar, O. F.; Ramachandaramurthy, V. K.

    2013-06-01

    The renewable energy (RE) sector has grown exponentially in Malaysia with the introduction of the Feed-In-Tariff (FIT) by the Ministry of Energy, Green Technology and Water. Photovoltaic, biogas, biomass and mini hydro are among the renewable energy sources which offer a lucrative tariff to incite developers in taking the green technology route. In order to receive the FIT, a developer is required by the utility company to perform a power system analysis which will determine the technical feasibility of an RE interconnection to the utility company's existing grid system. There are a number of aspects which the analysis looks at, the most important being the load flow and fault levels in the network after the introduction of an RE source. The analysis is done by modelling the utility company's existing network and simulating the network with the interconnection of an RE source. The results are then compared to the values before an interconnection is made as well as ensuring the voltage rise or the increase in fault levels do not violate any pre-existing regulations set by the utility company. This paper will delve into the mechanics of performing a load flow analysis and examining the results obtained.

  5. Pharmacokinetics and behavioral effects of liposomal hydromorphone suitable for perioperative use in rhesus macaques

    PubMed Central

    KuKanich, Butch; Schmidt, Brynn; Heath, Timothy D.; Brown, Carolyn

    2011-01-01

    Introduction This study aims to evaluate the pharmacokinetic, behavioral, and motor effects of a liposomal preparation of hydromorphone hydrochloride (LE-hydro) in rhesus monkeys. We administered either 2 mg/kg of LE-hydro (n=8) subcutaneous (s.c.) or 0.1 mg/kg of standard pharmaceutical hydromorphone HCl (hydro) preparation either intravenous (i.v.; n=4) or s.c. (n=5). Materials and methods Serial blood samples were drawn after injection and analyzed for serum hydro concentration by liquid chromatography/mass spectrometry. Following s.c. injection of 0.1 mg/kg hydro or 2 mg/kg LE-hydro, behavioral evaluations were conducted in groups of rhesus monkeys (n=10/group) in the presence of a compatible stimulus animal and motor skills were also evaluated (n=10/group). The motor skills test consisted of removing a food reward (carrot ring) from either a straight peg (simple task) or a curved peg (difficult task). Results LE-hydro (MRT0-INF = 105.9 h) demonstrated extended-release pharmacokinetics compared to hydro when administered by either i.v. (MRT0-INF =1.1 h) or s.c. (MRT0-INF =1.3 h) routes. Hydro did not affect motor performance of the simpler task, but the monkeys’ performance deteriorated on the more difficult task at 0.5 and 1 h after injection. LE-hydro had no effect on motor skills in either the simpler or more difficult task. Conclusions The results of these studies indicate that LE-hydro has a pharmacokinetic and behavioral side effects profile consistent with an analgesic that could be tested for surgical use in animals. Our studies also expand the use of rhesus monkeys as a translational behavioral pharmacodynamics model for testing extended-release opioid medication. PMID:21404039

  6. Restoring coastal wetlands that were ditched for mosquito control: a preliminary assessment of hydro-leveling as a restoration technique

    USGS Publications Warehouse

    Smith, Thomas J.; Tiling, Ginger; Leasure, Pamela S.

    2007-01-01

    The wetlands surrounding Tampa Bay, Florida were extensively ditched for mosquito control in the 1950s. Spoil from ditch construction was placed adjacent to the wetlands ditches creating mound-like features (spoil-mounds). These mounds represent a loss of 14% of the wetland area in Tampa Bay. Spoil mounds interfere with tidal flow and are locations for non-native plants to colonize (e.g., Schinus terebinthifolius). Removal of the spoil mounds to eliminate exotic plants, restore native vegetation, and re-establish natural hydrology is a restoration priority for environmental managers. Hydro-leveling, a new technique, was tested in a mangrove forest restoration project in 2004. Hydro-leveling uses a high pressure stream of water to wash sediment from the spoil mound into the adjacent wetland and ditch. To assess the effectiveness of this technique, we conducted vegetation surveys in areas that were hydro-leveled and in non-hydro-leveled areas 3 years post-project. Adult Schinus were reduced but not eliminated from hydro-leveled mounds. Schinus seedlings however were absent from hydro-leveled sites. Colonization by native species was sparse. Mangrove seedlings were essentially absent (≈2 m−2) from the centers of hydro-leveled mounds and were in low density on their edges (17 m−2) in comparison to surrounding mangrove forests (105 m−2). Hydro-leveling resulted in mortality of mangroves adjacent to the mounds being leveled. This was probably caused by burial of pneumatophores during the hydro-leveling process. For hydro-leveling to be a useful and successful restoration technique several requirements must be met. Spoil mounds must be lowered to the level of the surrounding wetlands. Spoil must be distributed further into the adjacent wetland to prevent burial of nearby native vegetation. Finally, native species may need to be planted on hydro-leveled areas to speed up the re-vegetation process.

  7. FLUIDIC: Metal Air Recharged

    ScienceCinema

    Friesen, Cody

    2018-02-14

    Fluidic, with the help of ARPA-E funding, has developed and deployed the world's first proven high cycle life metal air battery. Metal air technology, often used in smaller scale devices like hearing aids, has the lowest cost per electron of any rechargeable battery storage in existence. Deploying these batteries for grid reliability is competitive with pumped hydro installations while having the advantages of a small footprint. Fluidic's battery technology allows utilities and other end users to store intermittent energy generated from solar and wind, as well as maintain reliable electrical delivery during power outages. The batteries are manufactured in the US and currently deployed to customers in emerging markets for cell tower reliability. As they continue to add customers, they've gained experience and real world data that will soon be leveraged for US grid reliability.

  8. Dispatchable Renewable Energy Model for Microgrid Power System

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Chiou, Fred; Gentle, Jake P.; McJunkin, Timothy R.

    2017-04-01

    Over the years, many research projects have been performed and focused on finding out the effective ways to balance the power demands and supply on the utility grid. The causes of the imbalance could be the increasing demands from the end users, the loss of power generation (generators down), faults on the transmission lines, power tripped due to overload, and weather conditions, etc. An efficient Load Frequency Control (LFC) can assure the desired electricity quality provided to the residential, commercial and industrial end users. A simulation model is built in this project to investigate the contribution of the modeling ofmore » dispatchable energy such as solar energy, wind power, hydro power and energy storage to the balance of the microgrid power system. An analysis of simplified feedback control system with proportional, integral, and derivative (PID) controller was performed. The purpose of this research is to investigate a simulation model that achieves certain degree of the resilient control for the microgrid.« less

  9. Role of surface and subsurface lateral water flows on summer precipitation in a complex terrain region: A WRF-Hydro case-study for Southern Germany

    NASA Astrophysics Data System (ADS)

    Rummler, Thomas; Arnault, Joel; Gochis, David; Kunstmann, Harald

    2017-04-01

    Recent developments in hydrometeorological modeling aim towards more sophisticated treatment of terrestrial hydrologic processes. The standard version of the Weather Research and Forecasting (WRF) model describes terrestrial water transport as a purely vertical process. The hydrologically enhanced version of WRF, namely WRF-Hydro, does account for lateral terrestrial water flows, which allows for a more comprehensive process description of the interdependencies between water- and energy fluxes at the land-atmosphere interface. In this study, WRF and WRF-Hydro are applied to the Bavarian Alpine region in southern Germany, a complex terrain landscape in a relatively humid, mid-latitude climate. Simulation results are validated with gridded and station observation of precipitation, temperature and river discharge. Differences between WRF and WRF-Hydro results are investigated with a joint atmospheric-terrestrial water budget analysis. Changes in the partitioning in (near-) surface runoff and percolation are prominent. However, values for evapotranspiration ET feature only marginal variations, suggesting that soil moisture content is not a limiting factor of ET in this specific region. Simulated precipitation fields during isolated summertime events still show appreciable differences, while differences in large-scale, multi-day rainy periods are less substantial. These differences are mainly related to differences in the moisture in- and outflow terms of the atmospheric water budget induced by the surface and sub-surface lateral redistribution of soil moisture in WRF-Hydro.

  10. A 3-D Approach for Teaching and Learning about Surface Water Systems through Computational Thinking, Data Visualization and Physical Models

    NASA Astrophysics Data System (ADS)

    Caplan, B.; Morrison, A.; Moore, J. C.; Berkowitz, A. R.

    2017-12-01

    Understanding water is central to understanding environmental challenges. Scientists use `big data' and computational models to develop knowledge about the structure and function of complex systems, and to make predictions about changes in climate, weather, hydrology, and ecology. Large environmental systems-related data sets and simulation models are difficult for high school teachers and students to access and make sense of. Comp Hydro, a collaboration across four states and multiple school districts, integrates computational thinking and data-related science practices into water systems instruction to enhance development of scientific model-based reasoning, through curriculum, assessment and teacher professional development. Comp Hydro addresses the need for 1) teaching materials for using data and physical models of hydrological phenomena, 2) building teachers' and students' comfort or familiarity with data analysis and modeling, and 3) infusing the computational knowledge and practices necessary to model and visualize hydrologic processes into instruction. Comp Hydro teams in Baltimore, MD and Fort Collins, CO are integrating teaching about surface water systems into high school courses focusing on flooding (MD) and surface water reservoirs (CO). This interactive session will highlight the successes and challenges of our physical and simulation models in helping teachers and students develop proficiency with computational thinking about surface water. We also will share insights from comparing teacher-led vs. project-led development of curriculum and our simulations.

  11. 75 FR 17403 - Great Bay Hydro Corporation; Notice of Application for Amendment of License and Soliciting...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-06

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 2306-041] Great Bay Hydro.... b. Project No.: 2306-041. c. Date Filed: March 1, 2010. d. Applicant: Great Bay Hydro Corporation. e...-825r. h. Applicant Contact: Mr. William C. Rodgers, Director of Marketing, Great Bay Hydro Corporation...

  12. ENVIRONMENTAL TECHNOLOGY VERIFICATION: JOINT (NSF-EPA) VERIFICATION STATEMENT AND REPORT HYDRO COMPLIANCE MANAGEMENT, INC. HYDRO-KLEEN FILTRATION SYSTEM, 03/07/WQPC-SWP, SEPTEMBER 2003

    EPA Science Inventory

    Verification testing of the Hydro-Kleen(TM) Filtration System, a catch-basin filter designed to reduce hydrocarbon, sediment, and metals contamination from surface water flows, was conducted at NSF International in Ann Arbor, Michigan. A Hydro-Kleen(TM) system was fitted into a ...

  13. 78 FR 77118 - KC Small Hydro, LLC; Notice of Amended Preliminary Permit Application Accepted for Filing and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-20

    ..., Motions To Intervene, and Competing Applications On May 28, 2013, KC Scoby Hydro, LLC, filed an... 28, 2013, application and sent an acceptance letter to KC Scoby Hydro, LLC. Subsequently, On October 28, 2013, KC Scoby Hydro, LLC, amended its preliminary permit application to change its name to KC...

  14. 40 CFR 721.1880 - Borate(1-), tris(acetato-.kappa.O)hydro-, sodium, (T-4)-.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...)hydro-, sodium, (T-4)-. 721.1880 Section 721.1880 Protection of Environment ENVIRONMENTAL PROTECTION... New Uses for Specific Chemical Substances § 721.1880 Borate(1-), tris(acetato-.kappa.O)hydro-, sodium... substance identified as borate(1-), tris(acetato-.kappa.O)hydro-, sodium, (T-4)- (PMN P-00-0922; CAS No...

  15. 77 FR 55202 - Oliver Hydro LLC; Notice of Application Accepted for Filing and Soliciting Motions To Intervene...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-07

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 13005-003] Oliver Hydro LLC... filed: December 14, 2011. d. Applicant: Oliver Hydro LLC. e. Name of Project: William Bacon Oliver Lock... according to the following Hydro Licensing Schedule. Revisions to the schedule will be made as appropriate...

  16. 78 FR 71602 - Lock 12 Hydro Partners, LLC; Notice of Proposed Restricted Service List for a Programmatic Agreement

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-29

    ... Hydroelectric Project] Lock 12 Hydro Partners, LLC; Notice of Proposed Restricted Service List for a... Hydro Partners, LLC, as the applicant for Project No. 13214-003, is invited to participate in... Kinloch, Lock 14 Hydro Partners, 414 South Wenzel St., Louisville, KY 40204. Any person on the official...

  17. 75 FR 11527 - KC Hydro LLC; Notice of Competing Preliminary Permit Application Accepted for Filing and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-11

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 13617-000] KC Hydro LLC..., 2010. On November 6, 2009, KC Hydro LLC filed an application for a preliminary permit, pursuant to... Sackheim, KC Hydro LLC, 5096 Cocoa Palm Way, Fair Oaks, CA 95628, phone: (916) 962-2271, e-mail: oregon...

  18. 40 CFR 721.1880 - Borate(1-), tris(acetato-.kappa.O)hydro-, sodium, (T-4)-.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...)hydro-, sodium, (T-4)-. 721.1880 Section 721.1880 Protection of Environment ENVIRONMENTAL PROTECTION... New Uses for Specific Chemical Substances § 721.1880 Borate(1-), tris(acetato-.kappa.O)hydro-, sodium... substance identified as borate(1-), tris(acetato-.kappa.O)hydro-, sodium, (T-4)- (PMN P-00-0922; CAS No...

  19. 76 FR 41236 - FPL Energy Maine Hydro, LLC; Notice of Application Accepted for Filing and Soliciting Comments

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-13

    ... Hydro, LLC; Notice of Application Accepted for Filing and Soliciting Comments Take notice that the....: 2283-064. c. Date Filed: March 25, 2011. d. Applicant: FPL Energy Maine Hydro, LLC. e. Name of Project... Land/Trail Management Plan issued March 25, 2010, FPL Energy Maine Hydro, LLC (licensee) filed an...

  20. 78 FR 12304 - Lock+ Hydro Friends Fund XLII, LLC; Notice of Application Ready for Environmental Analysis and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-22

    ... Friends Fund XLII, LLC; Notice of Application Ready for Environmental Analysis and Soliciting Comments...+ Hydro Friends Fund XLII, LLC. e. Name of Project: Braddock Locks and Dam Hydroelectric Project. f...\\ Hydro Friends Fund XLII, LLC, c/o Hydro Green Energy, LLC, 900 Oakmont Lane, Suite 310, Westmont, IL...

  1. 78 FR 34570 - Special Local Regulations; Pro Hydro-X Tour, Lake Dora; Tavares, FL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-10

    ...-AA08 Special Local Regulations; Pro Hydro-X Tour, Lake Dora; Tavares, FL AGENCY: Coast Guard, DHS... waters of Lake Dora in Tavares, Florida, during the Pro Hydro-X Tour, a series of high-speed personal... published a notice of proposed rulemaking (NPRM) entitled Special Local Regulations; Pro Hydro-X Tour, Lake...

  2. Deployment Effects of Marin Renewable Energy Technologies

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Brian Polagye; Mirko Previsic

    2010-06-17

    Given proper care in siting, design, deployment, operation and maintenance, marine and hydrokinetic technologies could become one of the more environmentally benign sources of electricity generation. In order to accelerate the adoption of these emerging hydrokinetic and marine energy technologies, navigational and environmental concerns must be identified and addressed. All developing hydrokinetic projects involve a wide variety of stakeholders. One of the key issues that site developers face as they engage with this range of stakeholders is that many of the possible conflicts (e.g., shipping and fishing) and environmental issues are not well-understood, due to a lack of technical certainty.more » In September 2008, re vision consulting, LLC was selected by the Department of Energy (DoE) to apply a scenario-based approach to the emerging wave and tidal technology sectors in order to evaluate the impact of these technologies on the marine environment and potentially conflicting uses. The project’s scope of work includes the establishment of baseline scenarios for wave and tidal power conversion at potential future deployment sites. The scenarios will capture variations in technical approaches and deployment scales to properly identify and characterize environmental impacts and navigational effects. The goal of the project is to provide all stakeholders with an improved understanding of the potential effects of these emerging technologies and focus all stakeholders onto the critical issues that need to be addressed. This groundwork will also help in streamlining siting and associated permitting processes, which are considered key hurdles for the industry’s development in the U.S. today. Re vision is coordinating its efforts with two other project teams funded by DoE which are focused on regulatory and navigational issues. The results of this study are structured into three reports: 1. Wave power scenario description 2. Tidal power scenario description 3. Framework for Identifying Key Environmental Concerns This is the second report in the sequence and describes the results of conceptual feasibility studies of tidal power plants deployed in Tacoma Narrows, Washington. The Narrows contain many of the same competing stakeholder interactions identified at other tidal power sites and serves as a representative case study. Tidal power remains at an early stage of development. As such, a wide range of different technologies are being pursued by different manufacturers. In order to properly characterize impacts, it is useful to characterize the range of technologies that could be deployed at the site of interest. An industry survey informs the process of selecting representative tidal power devices. The selection criteria is that such devices are at an advanced stage of development to reduce technical uncertainties and that enough data are available from the manufacturers to inform the conceptual design process of this study. Further, an attempt is made to cover the range of different technologies under development to capture variations in potential environmental effects. A number of other developers are also at an advanced stage of development including Verdant Power, which has demonstrated an array of turbines in the East River of New York, Clean Current, which has demonstrated a device off Race Rocks, BC, and OpenHydro, which has demonstrated a device at the European Marine Energy Test Center and is on the verge of deploying a larger device in the Bay of Fundy. MCT demonstrated their device both at Devon (UK) and Strangford Narrows (Northern Ireland). Furthermore OpenHydro, CleanCurrent, and MCT are the three devices being installed at the Minas Passage (Canada). Environmental effects will largely scale with the size of tidal power development. In many cases, the effects of a single device may not be measurable, while larger scale device arrays may have cumulative impacts that differ significantly from smaller scale deployments. In order to characterize these effects, scenarios are established at three deployment scales which nominally represent (1) a small pilot deployment, (2) an early, small commercial deployment, and (3) a large commercial scale plant. For the three technologies and scales at the selected site, this results in a total of nine deployment scenarios outlined in the report.« less

  3. Alaska Energy Inventory Project: Consolidating Alaska's Energy Resources

    NASA Astrophysics Data System (ADS)

    Papp, K.; Clough, J.; Swenson, R.; Crimp, P.; Hanson, D.; Parker, P.

    2007-12-01

    Alaska has considerable energy resources distributed throughout the state including conventional oil, gas, and coal, and unconventional coalbed and shalebed methane, gas hydrates, geothermal, wind, hydro, and biomass. While much of the known large oil and gas resources are concentrated on the North Slope and in the Cook Inlet regions, the other potential sources of energy are dispersed across a varied landscape from frozen tundra to coastal settings. Despite the presence of these potential energy sources, rural Alaska is mostly dependent upon diesel fuel for both electrical power generation and space heating needs. At considerable cost, large quantities of diesel fuel are transported to more than 150 roadless communities by barge or airplane and stored in large bulk fuel tank farms for winter months when electricity and heat are at peak demands. Recent increases in the price of oil have severely impacted the price of energy throughout Alaska, and especially hard hit are rural communities and remote mines that are off the road system and isolated from integrated electrical power grids. Even though the state has significant conventional gas resources in restricted areas, few communities are located near enough to these resources to directly use natural gas to meet their energy needs. To address this problem, the Alaska Energy Inventory project will (1) inventory and compile all available Alaska energy resource data suitable for electrical power generation and space heating needs including natural gas, coal, coalbed and shalebed methane, gas hydrates, geothermal, wind, hydro, and biomass and (2) identify locations or regions where the most economic energy resource or combination of energy resources can be developed to meet local needs. This data will be accessible through a user-friendly web-based interactive map, based on the Alaska Department of Natural Resources, Land Records Information Section's (LRIS) Alaska Mapper, Google Earth, and Terrago Technologies' GeoPDF format to display the location, type, and where applicable, a risk-weighted quantity estimate of energy resources available in a given area or site. The project will be managed and directed by the DNR Division of Geological and Geophysical Surveys DGGS over the next five years with a team composed of the Alaska Energy Authority, DNR Division of Forestry, and DNR LRIS.

  4. The interaction of energy, population and sustainable development

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Mills, J.I.; Herring, J.S.

    1995-12-31

    The relationships among, energy, population growth, and sustainable economic development will be of critical importance during the next half century. In previous papers, the authors have modeled the interactions among energy, population and economic development. These studies have shown that the increased availability of economic alternatives, improved health conditions, and sustainable energy supplies have a direct interaction with the rate of population growth. Conversely, their studies and others have shown that poverty, poor health conditions, and the lack of economic alternatives contribute to a vicious cycle in which rapid population growth continues, poverty prevails, and health conditions deteriorate further. Reducingmore » population growth to a sustainable steady state value is, in part, a product of the improved health and living conditions brought on by a well-considered industrialization. Improving the availability and reliability of the electric supply is an integral part of that industrialization. Free trade zones surrounding major ports are becoming a major vehicle for development and gateways to the global economy. By providing the needed electricity to power these enterprise zones, US technology could furnish a vital link in development. Many current projects for providing power to preindustrial countries involve the construction of large, centralized projects. The construction of conventional fossil and nuclear plants requires that the developing countries first develop an infrastructure for both the construction and operation of such plants. Both hydro and steam plants require significant capital investment, either by the host country or by outside development agencies, before the first kilowatt-hour is delivered.« less

  5. An experimental study of dependence of hydro turbine vibration parameters on pressure pulsations in the flow path

    NASA Astrophysics Data System (ADS)

    Dekterev, D.; Maslennikova, A.; Abramov, A.

    2017-09-01

    The operation modes of the hydraulic power plant water turbine with the formation of a precessing vortex core were studied on the hydrodynamic set-up with the model of hydraulic unit. The dependence of low-frequency vibrations on flow pressure pulsations in the hydraulic unit was established. The results of the air injection effect on the vibrational parameters of the hydrodynamic set-up were presented.

  6. Assessing the Operational Resilience of Electrical Distribution Systems

    DTIC Science & Technology

    2017-09-01

    as solar, hydro, wind , nuclear, or gas turbine power plants, produce electricity. Transmission systems move electricity in bulk from the originating...us. As I continue in my career I will consistently seek to emulate your attention to detail and ability to quickly frame and solve a problem . Thank...generation facility can cause problems (Knaus, 2017). Disruptions to transmission systems, either from the loss of a high-voltage line or a substation, can

  7. Cavity degradation risk insurance assessment. Final report

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Hampson, C.; Neill, P.; de Bivort, L.

    1980-01-01

    This study examined the risks and risk management issues involved with the implementation by electric power utilities of compressed air energy storage and underground pumped hydro storage systems. The results are listed in terms of relative risks for the construction and operation of these systems in different geologic deposits, with varying amounts of pressurization, with natural or man-made disasters in the vicinity of the storage equipment, and with different modes of operating the facilities. (LCL)

  8. 13. Photocopy of drawing (original in SRP Files and Reproductions) ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    13. Photocopy of drawing (original in SRP Files and Reproductions) SRP Engineering, September 1940 RIGHTS OF WAY OF GRAND CANAL AND INDIAN BEND PUMP AND WASTE DITCH, SHOWING LOCATIONS OF DIESEL PLANT, ORIGINAL CROSSCUT HYDRO POWER HOUSE, AND DIESEL PLANT WELL NEAR WHICH INDIAN BEND POND WOULD BE CONSTRUCTED. - Crosscut Steam Plant, Indian Bend Pond & Pump Ditch, North side Salt River near Mill Avenue & Washington Street, Tempe, Maricopa County, AZ

  9. 78 FR 26768 - Great Lakes Hydro America, LLC; Notice of Intent To File License Application, Filing of Pre...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-08

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 2520-072] Great Lakes Hydro...: March 1, 2013. d. Submitted By: Great Lakes Hydro America, LLC. e. Name of Project: Mattaceunk... Preservation at 36 CFR 800.2. l. With this notice, we are designating Great Lakes Hydro America, LLC as the...

  10. 78 FR 71603 - Lock 14 Hydro Partners, LLC; Notice of Proposed Restricted Service List for a Programmatic Agreement

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-29

    ... Heidelberg Hydroelectric Project] Lock 14 Hydro Partners, LLC; Notice of Proposed Restricted Service List for... listed below. Lock 14 Hydro Partners, LLC, as the applicant for Project No. 13213-003, is invited to... Kinloch, Lock 14 Hydro Partners, 414 South Wenzel St., Louisville, KY 40204. Any person on the official...

  11. 77 FR 68765 - Lock+ Hydro Friends Fund XLII, LLC; Notice of Scoping Meetings and Environmental Site Review and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-16

    ... Friends Fund XLII, LLC; Notice of Scoping Meetings and Environmental Site Review and Soliciting Scoping.... c. Date filed: September 17, 2012. d. Applicant: Lock+ Hydro Friends Fund XLII, LLC. e. Name of...)-825(r). h. Applicant Contact: Mr. Mark R. Stover, Lock+\\TM\\ Hydro Friends Fund XLII, LLC, c/o Hydro...

  12. 78 FR 34092 - Lock+ Hydro Friends Fund XXX, LLC; FFP Project 121, LLC; Notice of Competing Preliminary Permit...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-06

    .... 14504-000] Lock+ Hydro Friends Fund XXX, LLC; FFP Project 121, LLC; Notice of Competing Preliminary... Applications Lock+ Hydro Friends Fund XXX, LLC and FFP Project 121, LLC filed preliminary permit applications... regular business day. See id. at 385.2001(a)(2). Lock+ Hydro Friends Fund XXX, LLC's application is for a...

  13. 77 FR 60971 - Lock+ Hydro Friends Fund XLII, LLC; Notice of Application Tendered for Filing With the Commission...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-05

    ... Friends Fund XLII, LLC; Notice of Application Tendered for Filing With the Commission and Soliciting... No.: 13739-002. c. Date filed: September 17, 2012. d. Applicant: Lock+ Hydro Friends Fund XLII, LLC.... 791 (a)-825(r). h. Applicant Contact: Mr. Mark R. Stover, Lock+ TM Hydro Friends Fund XLII, c/o Hydro...

  14. 77 FR 9222 - Lock+ Hydro Friends Fund XLII, LLC; Notice of Intent To File License Application, Filing of Pre...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-16

    ... Friends Fund XLII, LLC; Notice of Intent To File License Application, Filing of Pre-Application Document.... Date Filed: December 23, 2011. d. Submitted By: Lock+ Hydro Friends Fund XLII, LLC. e. Name of Project... regulations. h. Potential Applicant Contact: Mr. Mark R. Stover, Lock+\\TM\\ Hydro Friends Fund XLII, c/o Hydro...

  15. 77 FR 16216 - Lock+ Hydro Friends Fund XLVI, LLC; Notice of Intent To File License Application, Filing of Pre...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-20

    ... Friends Fund XLVI, LLC; Notice of Intent To File License Application, Filing of Pre-Application Document.... Date Filed: February 7, 2012. d. Submitted By: Lock+ Hydro Friends Fund XLVI, LLC. e. Name of Project... regulations. h. Potential Applicant Contact: Mr. Mark R. Stover, Lock+\\TM\\ Hydro Friends Fund XLVI, c/o Hydro...

  16. 77 FR 13317 - Lock+ Hydro Friends Fund XII, BOST2, LLC, et al.; Notice Announcing Filing Priority for...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-06

    ... al.] Lock+ Hydro Friends Fund XII, BOST2, LLC, et al.; Notice Announcing Filing Priority for Preliminary Permit Applications Project No. Lock+ Hydro Friends Fund XII 14260-000 BOST2, LLC 14264-000.... 2. BOST2, LLC: Project No. 14264-000. 3. Lock+ Hydro Friends Fund XII: Project No. 14260-000. 4...

  17. 75 FR 75999 - Lock + Hydro Friends Fund XlVI; FFP Missouri 17, LLC; Solia 3 Hydroelectric, LLC; Three Rivers...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-07

    .... 13754-000; Project No. 13765-000; Project No. 13783-000; Project No. 13790-000] Lock + Hydro Friends..., and Motions To Intervene NOVEMBER 30, 2010. On May 18, 2010, Lock + Hydro Friends Fund XLVI, FFP... proposed Hildebrand Lock & Dam Projects: Lock+ Hydro Friends Fund XLVI's project (Project No. 13734-000...

  18. 76 FR 66713 - Hydro Green Energy, LLC; Notice of Intent To File License Applications and Approving Use of the...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-27

    ...-001, 13424-001, 13809-001, 13649-001, 13651-001] Hydro Green Energy, LLC; Notice of Intent To File... Intent To File License Applications and Approving Requests to Use the Traditional Licensing Process. b... Filed: August 23, 2011. d. Submitted By: Hydro Green Energy, LLC (Hydro Green). e. Name of Projects...

  19. Locked on course: Hydro-Quebec`s commitment to mega-projects

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Maxwell, J.; Briscoe, F.; Suzuki, Tatsujiro

    1997-01-01

    Large organizations often escalate their commitments to mega-project development, even after evidence becomes available of adverse environmental consequences or lack of economic feasibility. This escalation of commitment transcends both sectorial and national boundaries. Preeminent examples include controversial nuclear projects in the US, hydroelectric projects like the Three Gorges Dam in China, and transport projects like the Chunnel and the Concorde. In this article, the authors examine the experience of Hydro-Quebec with the Great Whale Project. They argue that Hydro-Quebec escalated its commitment even after serious questions emerged about its environmental impacts and economic feasibility, because of (1) its earlier successmore » with large projects, (2) its engineering culture`s norms for consistency, and (3) its role in the government`s desire for economic and cultural autonomy. Finally, they discuss the changes that are necessary to break commitments to such projects.« less

  20. HydroUnits: A Python-based Physical Units Management Tool in Hydrologic Computing Systems

    NASA Astrophysics Data System (ADS)

    Celicourt, P.; Piasecki, M.

    2015-12-01

    While one objective of data management systems is to provide the units when annotating the collected data, another is that the units must be correctly manipulated during conversion steps. This is not a trivial task however and the units conversion time and errors for large datasets can be quite expensive. To date, more than a dozen Python modules have been developed to deal with units attached to quantities. However, they fall short in many ways and also suffer from not integrating with a units controlled vocabulary. Moreover, none of them permits the encoding of some complex units defined in the Consortium of Universities for the Advancement of Hydrologic Sciences, Inc.'s Observations Data Model (CUAHSI ODM) as a vectorial representation for storage demand reduction and does not incorporate provision to accommodate unforeseen standards-based units. We developed HydroUnits, a Python-based units management tool for three specific purposes: encoding of physical units in the Transducer Electronic Data Sheet (TEDS) as defined in the IEEE 1451.0 standard, performing dimensional analysis and on-the-fly conversion of time series allowing users to retrieve data from a data source in a desired equivalent unit while accommodating unforeseen and user-defined units. HydroUnits differentiates itself to existing tools by a number of factors including the implementation approach adopted, the adoption of standard-based units naming conventions and more importantly the emphasis on units controlled vocabularies which are a critical aspect of units treatment. Additionally, HydroUnits supports unit conversion for quantities with additive scaling factor, and natively supports time series conversion and takes leap years into consideration for units consisting of the time dimension (e.g., month, minute). Due to its overall implementation approach, HydroUnits exhibits a high level of versatility that no other tool we are aware of has achieved.

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