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1

Environmental impact assessment guidelines for new source fossil fueled steam electric generating stations. Final report  

Microsoft Academic Search

The report provides guidance for evaluating the environmental impacts of a proposed fossil fueled steam electric generating station requiring a new source National Pollutant Discharge Elimination System (NPDES) permit from the Environmental Protection Agency (EPA) to discharge wastewater to the navigable waters of the U.S. The guidelines are intended to assist in the identification of potential impacts, and the information

D. B. Boies; D. K. Whitenight; R. B. Bogardus; F. Parker

1979-01-01

2

Effect of Hurricane Andrew on the Turkey Point Nuclear Generating Station from August 20--30, 1992. [Final report  

Microsoft Academic Search

On August 24, 1992, Hurricane Andrew, a Category 4 hurricane, struck the Turkey Point Electrical Generating Station with sustained winds of 145 mph (233 km\\/h). This is the report of the team that the US Nuclear Regulatory Commission (NRC) and the Institute of Nuclear Power Operations (INPO) jointly sponsored (1) to review the damage that the hurricane caused the nuclear

Hebdon

1993-01-01

3

Effect of Hurricane Andrew on the Turkey Point Nuclear Generating Station from August 20--30, 1992. [Final report  

SciTech Connect

On August 24, 1992, Hurricane Andrew, a Category 4 hurricane, struck the Turkey Point Electrical Generating Station with sustained winds of 145 mph (233 km/h). This is the report of the team that the US Nuclear Regulatory Commission (NRC) and the Institute of Nuclear Power Operations (INPO) jointly sponsored (1) to review the damage that the hurricane caused the nuclear units and the utility`s actions to prepare for the storm and recover from it, and (2) to compile lessons that might benefit other nuclear reactor facilities.

Hebdon, F.J. [Institute of Nuclear Power Operations, Atlanta, GA (United States)

1993-03-01

4

AES Huntington Beach Generation Station Surf Zone  

E-print Network

AES Huntington Beach Generation Station Surf Zone Water Quality Study Prepared For: California HUNTINGTON BEACH GENERATING STATION SURF ZONE WATER QUALITY STUDY Prepared for: California of the Applied Energy Services (AES) Huntington Beach Generating Station (AES HBGS) in 2001, a near shore beach

5

75 FR 6223 - PSEG Nuclear LLC; Hope Creek Generating Station and Salem Nuclear Generating Station, Unit Nos. 1...  

Federal Register 2010, 2011, 2012, 2013

...Nuclear LLC; Hope Creek Generating Station and Salem Nuclear Generating Station, Unit Nos. 1...Creek Generating Station (HCGS) and the Salem Nuclear Generating Station, Unit Nos. 1 and 2 (Salem), located in Salem County, New...

2010-02-08

6

76 FR 19148 - PSEG Nuclear, LLC, Hope Creek Generating Station and Salem Nuclear Generating Station, Units 1...  

Federal Register 2010, 2011, 2012, 2013

...Nuclear, LLC, Hope Creek Generating Station and Salem Nuclear Generating Station, Units 1 and 2...Hope Creek Generating Station (HCGS) and Salem Nuclear Generating Station, Units 1 and 2 (Salem). Possible alternatives to the proposed...

2011-04-06

7

75 FR 9956 - PSEG Nuclear LLC, Hope Creek Generating Station and Salem Nuclear Generating Station, Unit Nos. 1...  

Federal Register 2010, 2011, 2012, 2013

...Nuclear LLC, Hope Creek Generating Station and Salem Nuclear Generating Station, Unit Nos. 1...NPF-57, which authorize operation of the Salem Nuclear Generating Station, Unit Nos. 1 and 2 (Salem), and Hope Creek Generating Station...

2010-03-04

8

CASE CRITICAL The Navajo Generating Station  

E-print Network

Republic The Navajo Generating Station, the largest coal-fired power plant in the West, provides electrical-old plant, Arizona's largest single source of carbon pollution, needs to update its pollution controls. Join

Hall, Sharon J.

9

Space Station Freedom solar dynamic power generation  

NASA Technical Reports Server (NTRS)

Viewgraphs on Space Station Freedom solar dynamic power generation are presented. Topics covered include: prime contract activity; key solar dynamic power module requirements; solar dynamic heat receiver technology; and solar concentrator advanced development.

Springer, T.; Friefeld, Jerry M.

1990-01-01

10

Field testing of behavioral barriers for fish exclusion at cooling-water intake systems, Central Hudson Gas and Electric Company Roseton Generating Station: Final report  

SciTech Connect

A seasonal field testing program was conducted during 1986 and 1987 to evaluate the effectiveness of behavioral barriers at Central Hudson Gas and Electric Corporations's Roseton Generating Station located in the euryhaline section of the Hudson River. This station was selected as representative of power plants with shoreline riverine/estuarine intake systems. Three commercially available devices (air bubble curtain, pneumatic gun, and underwater strobe light) were tested alone and in combination to determine their effectiveness in reducing impingement. The primary testing method incorporated three or four 6-h impingement collections during each test date, each consisting of two randomly assigned 3-h samples: one was an experimental test with a behavioral device in operation, the other a control test with no device operating. The effectiveness of the devices at excluding fish was determined by comparing impingement data from experimental and control periods. Results of the program do not establish that the deployment of underwater strobe lights, pneumatic guns, an air bubble curtain, or various combinations of the three devices will effectively lower fish impingement at power plants similar in design and location to the Roseton plant. Deterrent effectiveness was found to be species-specific and related to time of day. 51 refs., 67 figs., 72 tabs.

Matousek, J.A.; Wells, A.W.; McGroddy, P.M.

1988-09-01

11

Ecological studies of wood-boring bivalves and fouling organisms in the vicinity of the Oyster Creek Nuclear Generating Station. Final report, September 1976-December 1982  

SciTech Connect

The species composition, distribution, and population dynamics of wood-boring bivalves were studied using wood test panels at 20 stations in the vicinity of the Oyster Creek Nuclear Generating Station, Barnegat Bay, New Jersey. Physiological tolerances of three teredinid species were investigated in the laboratory and correlated with field values of temperature, salinity, siltation, precipitation, and plant operations. The interaction of boring and fouling organisms was examined. There is a definite correlation between the operation of the power plant and teredinid outbreaks. Increased salinity and water flow as well as temperature are responsible. After 1976, most of the damage in Oyster Creek was done by the introduced subtropical species Teredo bartschi. It can respond faster than native species to environmental change. Although Oyster Creek contributed larvae to neighboring parts of Barnegat Bay, its role as a breeding ground was limited. Some elements of the fouling community may be antagonistic to shipworm growth. Fouling was increased in both biomass and species richness in Oyster Creek when compared with creek controls, but the fouling community in Oyster Creek was less stable than that in other areas. Lower salinity limits for the teredinids were within the salinity range found in Oyster Creek but not within the range found in the control creeks. 71 references, 9 figures, 39 tables.

Hoagland, K.E.

1983-10-01

12

Southeast regional experiment station. Final report  

SciTech Connect

This is the final report of the Southeast Regional Experiment Station project. The Florida Solar Energy Center (FSEC), a research institute of the University of Central Florida (UCF), has operated the Southeast Regional Experiment Station (SE RES) for the US Department of Energy (DOE) since September 1982. Sandia National Laboratories, Albuquerque (SNLA) provides technical program direction for both the SE RES and the Southwest Regional Experiment Station (SW RES) located at the Southwest Technology Development Institute at Las Cruces, New Mexico. This cooperative effort serves a critical role in the national photovoltaic program by conducting system evaluations, design assistance and technology transfer to enhance the cost-effective utilization and development of photovoltaic technology. Initially, the research focus of the SE RES program centered on utility-connected PV systems and associated issues. In 1987, the SE RES began evaluating amorphous silicon (a-Si) thin-film PV modules for application in utility-interactive systems. Stand-alone PV systems began receiving increased emphasis at the SE RES in 1986. Research projects were initiated that involved evaluation of vaccine refrigeration, water pumping and other stand-alone power systems. The results of this work have led to design optimization techniques and procedures for the sizing and modeling of PV water pumping systems. Later recent research at the SE RES included test and evaluation of batteries and charge controllers for stand-alone PV system applications. The SE RES project provided the foundation on which FSEC achieved national recognition for its expertise in PV systems research and related technology transfer programs. These synergistic products of the SE RES illustrate the high visibility and contributions the FSEC PV program offers to the DOE.

Not Available

1994-08-05

13

Navajo Generating Station and Air Visibility Regulations: Alternatives and Impacts  

SciTech Connect

Pursuant to the Clean Air Act, the U.S. Environmental Protection Agency (EPA) announced in 2009 its intent to issue rules for controlling emissions from Navajo Generating Station that could affect visibility at the Grand Canyon and at several other national parks and wilderness areas. The final rule will conform to what EPA determines is the best available retrofit technology (BART) for the control of haze-causing air pollutants, especially nitrogen oxides. While EPA is ultimately responsible for setting Navajo Generating Station's BART standards in its final rule, it will be the U.S. Department of the Interior's responsibility to manage compliance and the related impacts. This study aims to assist both Interior and EPA by providing an objective assessment of issues relating to the power sector.

Hurlbut, D. J.; Haase, S.; Brinkman, G.; Funk, K.; Gelman, R.; Lantz, E.; Larney, C.; Peterson, D.; Worley, C.; Liebsch, E.

2012-01-01

14

Nuclear Generating Stations and Transmission Grid Reliability  

SciTech Connect

Nuclear generating stations have historically been susceptible to transmission system voltage excursions. When nuclear plants trip due to voltage excursions, the resulting loss of real and reactive power support can make grid events worse. New standards are being prepared which may help to improve nuclear plant and transmission system reliability. A brief historical perspective is provided. Another reliability issue is the fact that nuclear plants do not provide automatic generation control in response to frequency decay. As 28 new nuclear plants are being considered for connection to an already highly stressed transmission grid, consideration must be given to nuclear plant design features which will enhance, not degrade, transmission system reliability.

Kueck, John D [ORNL] [ORNL; Kirby, Brendan J [ORNL] [ORNL; Muhlheim, Michael David [ORNL] [ORNL

2007-01-01

15

1. GENERAL VIEW OF FISK STREET ELECTRIC GENERATING STATION COMPLEX, ...  

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

1. GENERAL VIEW OF FISK STREET ELECTRIC GENERATING STATION COMPLEX, LOOKING SOUTH; IN THE CENTER, BEHIND THE STACK IS THE GENERATING STATION BUILT IN 1959; THE TALL METAL-CLAD BUILDING CONTAINS A COAL BUNKER, COAL PULVERIZER, FURNACE, BOILER, SUPER-HEATER, STEAM PIPES, AND HOT-AIR DUCTS. TO THE RIGHT OF THIS 1959 GENERATING STATION IS THE ORIGINAL POWERHOUSE. - Commonwealth Electric Company, Fisk Street Electrical Generating Station, 1111 West Cermak Avenue, Chicago, Cook County, IL

16

77 FR 135 - Exelon Generation Company, LLC, Oyster Creek Nuclear Generating Station; Exemption  

Federal Register 2010, 2011, 2012, 2013

...NRC-2011-0287] Exelon Generation Company, LLC, Oyster Creek Nuclear Generating Station...Background The Exelon Generation Company, LLC (the...the Oyster Creek Nuclear Generating Station...a boiling-water reactor located in...

2012-01-03

17

1. GENERAL VIEW OF GENERATING STATION AS SEEN FROM FLY ...  

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

1. GENERAL VIEW OF GENERATING STATION AS SEEN FROM FLY ASH STORAGE TANKS; WEST FACADE OF POWERHOUSE AND BOILER BUILDING (FRONT) - Commonwlth Edison Company, Crawford Electrical Genrating Station, 3501 South Pulaski Road, Chicago, Cook County, IL

18

75 FR 33366 - Exelon Generation Company, LLC; Oyster Creek Nuclear Generating Station; Notice of Withdrawal of...  

Federal Register 2010, 2011, 2012, 2013

...LLC; Oyster Creek Nuclear Generating Station...License The U.S. Nuclear Regulatory Commission...the request of Exelon Generation Company, LLC, (Exelon...for the Oyster Creek Nuclear Generating Station...Division of Operating Reactor Licensing, Office...

2010-06-11

19

System for a displaying at a remote station data generated at a central station and for powering the remote station from the central station  

NASA Technical Reports Server (NTRS)

A system for displaying at a remote station data generated at a central station and for powering the remote station from the central station is presented. A power signal is generated at the central station and time multiplexed with the data and then transmitted to the remote station. An energy storage device at the remote station is responsive to the transmitted power signal to provide energizing power for the circuits at the remote station during the time interval data is being transmitted to the remote station. Energizing power for the circuits at the remote station is provided by the power signal itself during the time this signal is transmitted. Preferably the energy storage device is a capacitor which is charged by the power signal during the time the power is transmitted and is slightly discharged during the time the data is transmitted to energize the circuits at the remote station.

Perry, J. C. (inventor)

1980-01-01

20

Next generation SAR demonstration on space station  

NASA Astrophysics Data System (ADS)

This paper describes the next generation synthetic aperture radar (SAR) that enables future low cost space-borne radar missions. In order to realize these missions, we propose to use an inflatable, membrane, microstrip antenna that is particularly suitable for low frequency science radar missions. In order to mitigate risks associated with this revolutionary technology, the space station demonstration will be very useful to test the long-term survivability of the proposed antenna. This experiment will demonstrate several critical technology challenges associated with space-inflatable technologies. Among these include space-rigidization of inflatable structures, controlled inflation deployment, flatness and uniform separation of thin-film membranes and RF performance of membrane microstrip antennas. This mission will also verify the in-space performance of lightweight, high performance advanced SAR electronics. Characteristics of this SAR instrument include a capability for high resolution polarimetric imaging. The mission will acquire high quality scientific data using this advanced SAR to demonstrate the utility of these advanced technologies. We will present an inflatable L-band SAR concept for commercial and science applications and a P-band design concept to validate the Biomass SAR mission concept. The ionospheric effects on P-band SAR images will also be examined using the acquired data.

Edelstein, Wendy; Kim, Yunjin; Freeman, Anthony; Jordan, Rolando

1999-01-01

21

Design Studies for Gould Street Generating Station  

Microsoft Academic Search

Developments in the central station art have been so rapid within the last few years that many of the recent outstanding stations differ considerably in major elements of design. In the following, are briefly outlined, high points of the analyses upon which the principal features of the Gould Street design were based.

F. T. Leilich; C. L. Follmer; R. C. Dannettel

1928-01-01

22

Final Tier 2 Environmental Impact Statement for International Space Station  

NASA Technical Reports Server (NTRS)

The Final Tier 2 Environmental Impact Statement (EIS) for the International Space Station (ISS) has been prepared by the National Aeronautics and Space Administration (NASA) and follows NASA's Record of Decision on the Final Tier 1 EIS for the Space Station Freedom. The Tier 2 EIS provides an updated evaluation of the environmental impacts associated with the alternatives considered: the Proposed Action and the No-Action alternative. The Proposed Action is to continue U.S. participation in the assembly and operation of ISS. The No-Action alternative would cancel NASA!s participation in the Space Station Program. ISS is an international cooperative venture between NASA, the Canadian Space Agency, the European Space Agency, the Science and Technology Agency of Japan, the Russian Space Agency, and the Italian Space Agency. The purpose of the NASA action would be to further develop human presence in space; to meet scientific, technological, and commercial research needs; and to foster international cooperation.

1996-01-01

23

INVESTIGATION OF WASTE RAG GENERATION AT NAVAL STATION MAYPORT  

EPA Science Inventory

This report presents the results of an investigation examining pollution prevention alternatives for reducing the volume of waste rags generated at Naval Station Mayport, located near Jacksonville Beach, Florida. he report recommends five specific pollution prevention alternative...

24

Space station automation and robotics study. Final report  

SciTech Connect

The methodology used in the study is to establish functional requirements for the operator-system-interface (OSI), establish the technologies needed to meet these requirements, and to forecast the availability of these technologies. The study looked at progressively more detailed Space Station functions, starting from general stationkeeping functions, down to proximity operations, and finally to the extra vehicular (EV) robot functions. The EV robot envisioned would be a free-flyer while in transit from one location to another in close proximity to the orbiting Space Station. The OSI would perform path planning, tracking and control, object recognition, fault detection and correction, and plan modifications in connection with EV robot operations. The implementation of the OSI implies the use of natural languages, voice recognition and synthesis, speech understanding, expert diagnostic and advisory knowledge systems, and machine learning.

Not Available

1984-11-01

25

77 FR 69506 - Exelon Generation Company, LLC., Oyster Creek Nuclear Generating Station; Exemption  

Federal Register 2010, 2011, 2012, 2013

...NUCLEAR REGULATORY COMMISSION [Docket No. 50-219; NRC-2010-0200] Exelon Generation Company, LLC., Oyster Creek Nuclear Generating Station; Exemption AGENCY: Nuclear Regulatory Commission. ACTION: Notice of Issuance;...

2012-11-19

26

76 FR 79227 - Exemption Request Submitted by Oyster Creek Nuclear Generating Station; Exelon Generation Company...  

Federal Register 2010, 2011, 2012, 2013

...2012, as requested by Exelon Generation Company, LLC (the licensee...operation of the Oyster Creek Nuclear Generating Station (Oyster...I-2, Division of Operating Reactor Licensing, Office of Nuclear Reactor Regulation. [FR Doc....

2011-12-21

27

Improving Baghouse Performance at the Monticello Generating Station  

Microsoft Academic Search

At the Monticello station, operated by the Texas Utilities Generating Company, lignite coal obtained locally in Titus and Hopkins Counties fuels each of the three units. Units 1 and 2 are identical 575-MW Combustion Engineering (CE) boilers, each of which discharges its effluent to a 36- compartment shake\\/deflate cleaned baghouse paralleled with four electrostatic precipitators (ESP). Unit 3 is a

Larry G. Felix; Randy L. Merritt; Kent Duncan

1986-01-01

28

Palo Verde nuclear generating station feedwater control system optimization project  

Microsoft Academic Search

The Pale Verde nuclear generating station (PVNGS) units were originally supplied with central digital feedwater control systems. Arizona Public Service (APS) implemented a program to improve the performance of the system. Recently, the recommended setting changes were implemented in PVNGS Unit 3. The evaluation of the new feedwater control system settings during a 0 to 100% power ascension with 5%

G. Anderson; G. Singh; C. Nielsen

1991-01-01

29

A Renewably Powered Hydrogen Generation and Fueling Station Community Project  

NASA Technical Reports Server (NTRS)

The proposed project goal is to encourage the use of renewable energy and clean fuel technologies for transportation and other applications while generating economic development. This can be done by creating an incubator for collaborators, and creating a manufacturing hub for the energy economy of the future by training both white- and blue-collar workers for the new energy economy. Hydrogen electrolyzer fueling stations could be mass-produced, shipped and installed in collaboration with renewable energy power stations, or installed connected to the grid with renewable power added later.

Lyons, Valerie J.; Sekura, Linda S.; Prokopius, Paul; Theirl, Susan

2009-01-01

30

Biofouling control with ozone at the Bergen Generating Station  

SciTech Connect

The results of a study designed to evaluate the effectiveness of ozone as an alternative to chlorine for condenser biofouling control in a once-through cooling system are reported. Tests were conducted at PSE and G's Bergen Generating Station using a pilot-scale condenser system to simulate plant condenser operations. Three model condensers were operated under identical conditions with only the biocide treatment differing. Comparisons of ozone and chlorine were made and the minimum effective levels of each were determined by daily measurements of the heat transfer coefficient across the model condenser tubes and/or the water side pressure drop. Final evaluation was based on the mass of biofouling material collected from the tubewalls. Test results indicate that chlorine is capable of effective biofouling control when applied for 2 hours/day at a level as low as 0.1 mg/l. Ozone, applied on the same schedule, requires 0.5 mg/l for effective control. The results of this study are representative of only the Bergen site. Water quality at each particular site will influence the development of the biofouling organisms, the chemical reactions of the biocides, and therefore, the effectiveness of the treatment methodology. The results suggest that further examination of ozonation for biofouling control is warranted. Although much more costly than chlorine, its effects on indigenous ecosystems may prove ozone to be better suited for application at selected power plants. It must be emphasized, however, that much more information is necessary before ozone can be recommended as an environmentally acceptable alternative to chlorine.

Sugam, R.; Guerra, C.R.; DelMonaco, J.L.; Singletary, J.H.; Sandvik, W.A.

1980-11-01

31

Next-Generation GPS Station for Hazards Mitigation (Invited)  

NASA Astrophysics Data System (ADS)

Our objective is to better forecast, assess, and mitigate natural hazards, including earthquakes, tsunamis, and extreme storms and flooding through development and implementation of a modular technology for the next-generation in-situ geodetic station to support the flow of information from multiple stations to scientists, mission planners, decision makers, and first responders. The same technology developed under NASA funding can be applied to enhance monitoring of large engineering structures such as bridges, hospitals and other critical infrastructure. Meaningful warnings save lives when issued within 1-2 minutes for destructive earthquakes, several tens of minutes for tsunamis, and up to several hours for extreme storms and flooding, and can be provided by on-site fusion of multiple data types and generation of higher-order data products: GPS/GNSS and accelerometer measurements to estimate point displacements, and GPS/GNSS and meteorological measurements to estimate moisture variability in the free atmosphere. By operating semi-autonomously, each station can then provide low-latency, high-fidelity and compact data products within the constraints of narrow communications bandwidth that often accompanies natural disasters. We have developed a power-efficient, low-cost, plug-in Geodetic Module for fusion of data from in situ sensors including GPS, a strong-motion accelerometer module, and a meteorological sensor package, for deployment at existing continuous GPS stations in southern California; fifteen stations have already been upgraded. The low-cost modular design is scalable to the many existing continuous GPS stations worldwide. New on-the-fly data products are estimated with 1 mm precision and accuracy, including three-dimensional seismogeodetic displacements for earthquake, tsunami and structural monitoring and precipitable water for forecasting extreme weather events such as summer monsoons and atmospheric rivers experienced in California. Unlike more traditional approaches where data are collected and analyzed from a network of stations at a central processing facility, we are embedding these capabilities in the Geodetic Module's processor for in situ analysis and data delivery through TCP/IP to avoid single points of failure during emergencies. We are infusing our technology to several local and state groups, including the San Diego County Office of Emergency Services for earthquake and tsunami early warnings, UC San Diego Health Services for hospital monitoring and early warning, Caltrans for bridge monitoring, and NOAA's Weather Forecasting Offices in San Diego and Los Angeles Counties for forecasting extreme weather events. We describe our overall system and the ongoing efforts at technology infusion.

Bock, Y.

2013-12-01

32

Engineer and technical training at GPUN's nuclear generating stations  

SciTech Connect

GPU Nuclear (GPUN) owns and operates the Oyster Creek and Three Mile Island (TMI) unit I nuclear generating stations. They also continue the recovery efforts of the damaged reactor at TMI-2. Technical training for engineers and support staff is managed by the GPUN Corporate Training Department. The group also manages the Institute of Nuclear Power Operations (INPO)-accredited Engineering Support Personnel (ESP) Training Program and the GPUN New Engineer Training Program. The New Engineer Training Program has been in existence since 1982 and has trained and oriented [approximately]100 new college graduates to the nuclear industry.

Coe, R.P. (GPU Nuclear Corp., Parsippany, NJ (United States))

1993-01-01

33

33 CFR 165.554 - Security Zone; Three Mile Island Generating Station, Susquehanna River, Dauphin County...  

...2014-07-01 false Security Zone; Three Mile Island Generating Station, Susquehanna River...165.554 Security Zone; Three Mile Island Generating Station, Susquehanna River...River in the vicinity of the Three Mile Island Generating Station bounded by a line beginning at...

2014-07-01

34

Buried waste integrated demonstration human engineered control station. Final report  

SciTech Connect

This document describes the Human Engineered Control Station (HECS) project activities including the conceptual designs. The purpose of the HECS is to enhance the effectiveness and efficiency of remote retrieval by providing an integrated remote control station. The HECS integrates human capabilities, limitations, and expectations into the design to reduce the potential for human error, provides an easy system to learn and operate, provides an increased productivity, and reduces the ultimate investment in training. The overall HECS consists of the technology interface stations, supporting engineering aids, platform (trailer), communications network (broadband system), and collision avoidance system.

Not Available

1994-09-01

35

78 FR 47795 - In the Matter of Entergy Nuclear Generation Company Pilgrim Power Station Independent Spent Fuel...  

Federal Register 2010, 2011, 2012, 2013

...In the Matter of Entergy Nuclear Generation Company Pilgrim Power Station Independent Spent...Generation Company, Pilgrim Nuclear Power Station Independent Spent...is set forth in the Pilgrim Nuclear Power Station's physical...

2013-08-06

36

DESIGNING AN OPPORTUNITY FUEL WITH BIOMASS AND TIRE-DERIVED FUEL FOR COFIRING AT WILLOW ISLAND GENERATING STATION AND COFIRING SAWDUST WITH COAL AT ALBRIGHT GENERATING STATION  

SciTech Connect

During the period April 1, 2003--June 30, 2003, Allegheny Energy Supply Co., LLC (Allegheny) proceeded with demonstration operations at the Willow Island Generating Station and improvements to the Albright Generating Station cofiring systems. The demonstration operations at Willow Island were designed to document integration of biomass cofiring into commercial operations. The Albright improvements were designed to increase the resource base for the projects, and to address issues that came up during the first year of operations. This report summarizes the activities associated with the Designer Opportunity Fuel program, and demonstrations at Willow Island and Albright Generating Stations.

K. Payette; D. Tillman

2003-07-01

37

Final environmental assessment for vegetation control at VHF stations, microwave stations, electrical substations, and pole yards  

SciTech Connect

Southwestern Power Adm. operates very high frequency (VHF) and microwave radio stations, electrical substations, and pole yards for electric power transmission throughout AR, MO, and OK. Vegetation growth at the stations must be suppressed for safety of operation and personnel. Southwestern has been using a combination of mechanical/manual and herbicide control for this purpose; Federally- mandated reductions in staff and budgetary resources require Southwestern to evaluate all potentially efficient methods for vegetation control. Three alternatives were examined: no action, mechanical/manual control, and (proposed) a combination of mechanical/manual and herbicide control. Environmental impacts on air and water quality, wetlands, wildlife, endangered species, archaeological and other resources, farmland, human health, transportation, etc. were evaluated.

NONE

1995-10-13

38

Converting Limbo Lands to Energy-Generating Stations: Renewable Energy Technologies on Underused, Formerly Contaminated Sites  

SciTech Connect

This report addresses the potential for using 'Limbo Lands' (underused, formerly contaminated sites, landfills, brownfields, abandoned mine lands, etc. ) as sites for renewable energy generating stations.

Mosey, G.; Heimiller, D.; Dahle, D.; Vimmerstedt, L.; Brady-Sabeff, L.

2007-10-01

39

ISSLIVE! Bringing the Space Station to Every Generation  

NASA Technical Reports Server (NTRS)

Just 200 miles above us, the International Space Station (ISS) is orbiting. Each day, the astronauts on board perform a variety of activities from exercise, science experiments, and maintenance. Yet, many on the ground don?t know about these daily activities. ISSLive! - an education project - is working to bridge this knowledge gap with traditional education channels such as schools, but also non-traditional channels with the non-technical everyday public. ISSLive! provides a website that seamlessly integrates planning and telemetry data, video feeds, 3D models, and iOS and android applications. Through the site, users are able to view astronauts? daily schedules, in plain English alongside the original data. As an example, when an astronaut is working with a science experiment, a user will be able to read about the activity and for more detailed activities follow provided links to view more information -- all integrated into the same site. Live telemetry data from a predefined set can also be provided alongside the activities. For users to learn more, 3D models of the external and internal parts of the ISS are available, allowing users to explore the station and even select sensors, such as temperature, and view a real-time chart of the data. Even ground operations are modelled with a 3D mission control center, providing users information on the various flight control disciplines and showing live data that they would be monitoring. Some unique activities are also highlighted, and have dedicated spaces to explore in more detail. Education is the focus of ISSLive!, even from the beginning when university students participated in the development process as part of their master?s projects. Focus groups at a Houston school showed interest in the project, and excitement towards including ISSLive! in their classroom. Through this inclusion, student?s knowledge can be assessed with projects, oral presentations, and other assignments. For the public citizens outside of the traditional education system, ISSLive! provides a single, interactive, and engaging experience to learn about the ISS and its role in space exploration, international collaboration, and science. While traditional students are using ISSLive! in the classroom, their parents, grandparents, and friends are using it at home. ISSLive! truly brings the daily operations of the ISS into the daily lives of the public from every generation.

Harris, Philip D.; Price, Jennifer B.; Severance, Mark; Blue, Regina; Khan, Ahmed; Healy, Matthew D.; Ehlinger, Jesse B.

2011-01-01

40

IMPACT OF AIR POLLUTION ON VEGETATION NEAR THE COLUMBIA GENERATING STATION - WISCONSIN POWER PLANT IMPACT STUDY  

EPA Science Inventory

The impact of air pollution from the coal-fired Columbia Generating Station upon vegetation was investigated. Air monitoring of 03 and 02 documented levels that occurred before and with operation of the generating station. Field sampling of alfalfa, lichens, and white pines was u...

41

BASE STATION BASEBAND DIGITAL PROCESSING IN NEXT GENERATION CDMA SYSTEMS  

E-print Network

structure. The receiver employs sequential decision-making as well as tree search techniques to signi cantly to reduce base station density by a factor of four over that of a single antenna system. The second dence in me and supported me throughout my academic career. I would also like to thank the members

Blostein, Steven D.

42

Examination of the relationship between Navajo generating station emissions and aerosol concentrations at Page, Arizona  

SciTech Connect

Identifying the chemical/physical characteristics and source of pollutants contributing to low lying wintertime layered hazes in the canyons along the Colorado River where it cuts through the Colorado River Plateau area is one objective of the subregional cooperative electric utility, national park service (NPS), Environmental Protection Agency (EPA) and Department of Defense (DOD) Study, (SCENES) consortium of industrial and government agencies. As part of SCENES, a short term special study, the winter haze intensive tracer experiment (WHITEX) was specially formulated to asses the feasibility of various receptor modeling techniques to attribute emissions from the Navajo Generating Station to aerosol concentrations in three National Park Service sites, Canyonlands and Grand Canyon National Parks and Glen Canyon National Recreation Area, to relate aerosol concentrations to atmospheric extinction and finally to relate extinction to visibility impairment.This paper focuses on a subset of WHITEX, the source of visibility reducing aerosols at Page (Lake Powell), Arizona.

Iyer, H.K. (Colorado State Univ., Fort Collins, CO (USA)); Malm, W.C. (National Park Service, Colorado State Univ., Fort Collins, CO (US))

1988-01-01

43

Economic and technical analysis of distributed utility benefits for hydrogen refueling stations. Final report  

SciTech Connect

This report presents the potential economic benefits of operating hydrogen refueling stations to accomplish two objectives: supply pressurized hydrogen for vehicles, and supply distributed utility generation, transmission and distribution peaking energy and capacity to the utility. The study determined under what circumstances using a hydrogen-fueled generator as a distributed utility generation source, co-located with the hydrogen refueling station components (electrolyzer and storage), would result in cost savings to the station owner, and hence lower hydrogen production costs. The systems studied include a refueling station (including such components as an electrolyzer, storage, hydrogen dispensers, and compressors) plus on-site hydrogen fueled electricity generation units (e.g., fuel cells or combustion engines). The operational strategy is to use off-peak electricity in the electrolyzer to fill hydrogen storage, and to dispatch the electricity generation about one hour per day to meet the utility`s local and system peaks. The utility was assumed to be willing to pay for such service up to its avoided generation, fuel, transmission and distribution costs.

Iannucci, J.J.; Eyer, J.M.; Horgan, S.A.; Schoenung, S.M. [Distributed Utility Associates, Livermore, CA (United States)]|[Longitude 122 West, Inc., Menlo Park, CA (United States)

1998-04-01

44

33 CFR 165.552 - Security Zone; Oyster Creek Generation Station, Forked River, Ocean County, New Jersey.  

...Security Zone; Oyster Creek Generation Station, Forked River, Ocean County, New Jersey. 165.552 Section 165.552 Navigation...Security Zone; Oyster Creek Generation Station, Forked River, Ocean County, New Jersey. (a) Location. The following area is a...

2014-07-01

45

33 CFR 165.553 - Security Zone; Salem and Hope Creek Generation Stations, Delaware River, Salem County, New Jersey.  

... 2014-07-01 false Security Zone; Salem and Hope Creek Generation Stations, Delaware River, Salem County, New Jersey. 165.553 Section...District § 165.553 Security Zone; Salem and Hope Creek Generation Stations,...

2014-07-01

46

33 CFR 165.553 - Security Zone; Salem and Hope Creek Generation Stations, Delaware River, Salem County, New Jersey.  

Code of Federal Regulations, 2013 CFR

... 2013-07-01 false Security Zone; Salem and Hope Creek Generation Stations, Delaware River, Salem County, New Jersey. 165.553 Section...District § 165.553 Security Zone; Salem and Hope Creek Generation Stations,...

2013-07-01

47

33 CFR 165.552 - Security Zone; Oyster Creek Generation Station, Forked River, Ocean County, New Jersey.  

Code of Federal Regulations, 2013 CFR

...2013-07-01 false Security Zone; Oyster Creek Generation Station, Forked River...District § 165.552 Security Zone; Oyster Creek Generation Station, Forked River...the Forked River in the vicinity of the Oyster Creek Generation Station, bounded by a line beginning at...

2013-07-01

48

33 CFR 165.552 - Security Zone; Oyster Creek Generation Station, Forked River, Ocean County, New Jersey.  

Code of Federal Regulations, 2012 CFR

...2012-07-01 false Security Zone; Oyster Creek Generation Station, Forked River...District § 165.552 Security Zone; Oyster Creek Generation Station, Forked River...the Forked River in the vicinity of the Oyster Creek Generation Station, bounded by a line beginning at...

2012-07-01

49

DESIGNING AN OPPORTUNITY FUEL WITH BIOMASS AND TIRE-DERIVED FUEL FOR COFIRING AT WILLOW ISLAND GENERATING STATION  

SciTech Connect

During the period January 1, 2001-March 31, 2001, Allegheny Energy Supply Co., LLC (Allegheny) finalized the engineering of the Willow Island cofiring project, completed the fuel characterizations for both the Willow Island and Albright Generating Station projects, and initiated construction of both projects. Allegheny and its contractor, Foster Wheeler, selected appropriate fuel blends and issued purchase orders for all processing and mechanical equipment to be installed at both sites. This report summarizes the activities associated with the Designer Opportunity Fuel program, and demonstrations at Willow Island and Albright Generating Stations. The third quarter of the project involved completing the detailed designs for the Willow Island Designer Fuel project. It also included complete characterization of the coal and biomass fuels being burned, focusing upon the following characteristics: proximate and ultimate analysis; higher heating value; carbon 13 nuclear magnetic resonance testing for aromaticity, number of aromatic carbons per cluster, and the structural characteristics of oxygen in the fuel; drop tube reactor testing for high temperature devolatilization kinetics and generation of fuel chars; thermogravimetric analyses (TGA) for char oxidation kinetics; and related testing. The construction at both sites commenced during this quarter, and was largely completed at the Albright Generating Station site.

K. Payette; D. Tillman

2001-04-01

50

DESIGNING AN OPPORTUNITY FUEL WITH BIOMASS AND TIRE-DERIVED FUEL FOR COFIRING AT WILLOW ISLAND GENERATING STATION AND COFIRING SAWDUST WITH COAL AT ALBRIGHT GENERATING STATION  

SciTech Connect

During the period October 1, 2002--December 31, 2002, Allegheny Energy Supply Co., LLC (Allegheny) completed the first year of testing at the Willow Island cofiring project. This included data acquisition and analysis associated with certain operating parameters and environmental results. Over 2000 hours of cofiring operation were logged at Willow Island, and about 4,000 tons of sawdust were burned along with slightly more tire-derived fuel (TDF). The results were generally favorable. During this period, also, a new grinder was ordered for the Albright Generating Station to handle oversized material rejected by the disc screen. This report summarizes the activities associated with the Designer Opportunity Fuel program, and demonstrations at Willow Island and Albright Generating Stations. It details the test results at Willow Island and summarizes the grinder program at Albright.

K. Payette; D. Tillman

2003-01-01

51

A Low-cost Ground Station for Meteosat Second Generation: A Case Study from Brazil  

NASA Astrophysics Data System (ADS)

Described in this work is an example of low-cost ground stations in Brazil through EUMET- SAT's EUMETCast service to receive near real-time local-access of derived products and images from Meteosat Second Generation (MSG) satellites. The increasing availability of such groundbased MSG stations is rapidly becoming a powerful, cost-effective, and easily accessible source of derived products to monitor variations in weather systems and changes in the distribution of natural resources. In addition, this work presents a comprehensive outline of antenna and hardware requirements, and software considerations of such stations.

Barbosa, Humberto

52

Central station applications planning activities and supporting studies. [application of photovoltaic technology to power generation plants  

NASA Technical Reports Server (NTRS)

The application of photovoltaic technology in central station (utility) power generation plants is considered. A program of data collection and analysis designed to provide additional information about the subset of the utility market that was identified as the initial target for photovoltaic penetration, the oil-dependent utilities (especially muncipals) of the U.S. Sunbelt, is described along with a series of interviews designed to ascertain utility industry opinions about the National Photovoltaic Program as it relates to central station applications.

Leonard, S. L.; Siegel, B.

1980-01-01

53

Modeling of a horizontal steam generator for the submerged nuclear power station concept  

SciTech Connect

A submerged nuclear power station has been proposed as an alternative power station with a relatively low environmental impact for use by both industrialized and developing countries. The station would be placed 10 m above the seabed at a depth of 30--100 m and a distance of 10--30 km from shore. The submerged nuclear power station would be manufactured and refueled in a central facility, thus gaining the economies of factoryfabrication and the flexibility of short-lead-time deployment. To minimize the size of the submerged hull, horizontal steam generators are proposed for the primary-to-secondary heat transfer, instead of the more traditional vertical steam generators. The horizontal steam generators for SNPS would be similar in design to the horizontal steam generators used in the N-Reactors except the tube orientation is horizontal (the tube's inlet and outlet connection points on the tubesheet are at the same elevation). Previous RELAP5 input decks for horizontal steam generators have been either very simplistic (Loviisa PWR) or used a vertical tube orientation (N-Reactor). This paper will present the development and testing of a RELAP5 horizontal steam generator model, complete with a simple secondary water level control system, that accounts for the dynamic flow conditions which exist inside horizontal steam generators.

Palmrose, D.E.; Herring, J.S.

1993-01-01

54

Modeling of a horizontal steam generator for the submerged nuclear power station concept  

SciTech Connect

A submerged nuclear power station has been proposed as an alternative power station with a relatively low environmental impact for use by both industrialized and developing countries. The station would be placed 10 m above the seabed at a depth of 30--100 m and a distance of 10--30 km from shore. The submerged nuclear power station would be manufactured and refueled in a central facility, thus gaining the economies of factoryfabrication and the flexibility of short-lead-time deployment. To minimize the size of the submerged hull, horizontal steam generators are proposed for the primary-to-secondary heat transfer, instead of the more traditional vertical steam generators. The horizontal steam generators for SNPS would be similar in design to the horizontal steam generators used in the N-Reactors except the tube orientation is horizontal (the tube`s inlet and outlet connection points on the tubesheet are at the same elevation). Previous RELAP5 input decks for horizontal steam generators have been either very simplistic (Loviisa PWR) or used a vertical tube orientation (N-Reactor). This paper will present the development and testing of a RELAP5 horizontal steam generator model, complete with a simple secondary water level control system, that accounts for the dynamic flow conditions which exist inside horizontal steam generators.

Palmrose, D.E.; Herring, J.S.

1993-05-01

55

Geothermal energy at Long Beach Naval Shipyard and Naval Station and at Seal Beach Naval Weapons Station, California. Final report  

Microsoft Academic Search

The purpose of this project was to determine and evaluate sources of geothermal energy at two military bases in southern California, the Long Beach Naval Shipyard and Naval Station and the Seal Beach Naval Weapons Station. One part of the project focused on the natural geothermal characteristics beneath the naval bases. Another part focused on the geothermal energy produced by

C. T. Higgins; R. H. Chapman

1984-01-01

56

Thermal and chemical tests of the steam generator of unit 3 at the Kalinin nuclear power station  

NASA Astrophysics Data System (ADS)

The results obtained from combined thermal and chemical tests of the steam generator of Unit 3 at the Kalinin nuclear power station are summarized. The obtained data are compared with the results of thermal and chemical tests carried out on steam generators at other nuclear power stations equipped with VVER-1000 reactors, and recommendations on selecting the steam-generator blowdown schedule are given.

Davidenko, N. N.; Trunov, N. B.; Saakov, E. S.; Berezanin, A. A.; Bogomolov, I. N.; Derii, V. P.; Nemytov, D. S.; Usanov, D. A.; Shestakov, N. B.; Shchelik, S. V.

2007-12-01

57

Chemical decontamination of steam generator channel heads at the R. E. Ginna Station  

Microsoft Academic Search

In April of 1983, the channel heads of the A and B steam generators at Rochester Gas and Electric Corporation's R.E. Ginna Station were decontaminated using the CAN-DECON chemical cleaning process. In this paper the chemistry of this dilute, regenerative, chemical decontamination process is described, and the chemical parameters for the Ginna decontamination are detailed. The decontamination factors achieved are

J. L. Smee; T. A. Beaman; D. L. Filkins

1984-01-01

58

Oakley Generating Station Project (09-AFC-4) Loreen R. McMahon  

E-print Network

for Certification (AFC) LibraryLibrary > Oakley Public Library, 1050 Neroly Road, Oakley, CA > Antioch Library, 501Oakley Generating Station Project (09-AFC-4) Loreen R. McMahon Deputy Public Adviser November 9, 2009 #12;Public Participation Outreach ub c a t c pat o Public participation is an integral part

59

Review of the Arkansas Nuclear One Generating Station Unit No. 1. Emergency feedwater system reliability analysis  

Microsoft Academic Search

The purposes of this report are: (1) to review the Emergency Feedwater System Upgrade Reliability Analysis for the Arkansas Nuclear One Nuclear Generating Station Unit No. 1, and (2) to estimate the probability that the Emergency Feedwater System will not perform its mission for each of three different initiators: (1) loss of main feedwater with offsite power available, (2) loss

R. Youngblood; I. A. Papazoglou

1984-01-01

60

Review of the Crystal River Nuclear Generating Station Unit No. 3, emergency feedwater system reliability analysis  

Microsoft Academic Search

The purposes of this report are to review the Emergency Feedwater System Upgrade Reliability Analysis for the Crystal River Nuclear Generating Station Unit No. 3, and to provide an independent evaluation of the Emergency Feedwater System reliability. This report presents estimates of the probability that the Emergency Feedwater System will be unavailable given each of three different initiators: (1) loss

R. Youngblood; I. A. Papazoglou

1983-01-01

61

Modifications and addition of an auxiliary feedwater pump to SONGS (San Onofre nuclear generating station) 1  

Microsoft Academic Search

This paper discusses the recent modifications and equipment additions to the auxiliary feedwater (AFW) system at San Onofre nuclear generating station (SONGS) Unit 1. As a result of the Three Mile Island accident, several modifications to the AFW system were required. The addition of a third auxiliary feedwater pump was necessary to allow auxiliary feedwater operation following a main steam-line

F. Anoush; K. Johnson

1989-01-01

62

Modeling cooling water discharges from the Burrard Generating Station, BC Canada  

Microsoft Academic Search

A three-dimensional numerical model was applied to examine the impact of the Burrard Generating Station cooling water on the circulation patterns and thermal regime in the receiving water of Port Moody Arm. A key aspect of this study involved properly incorporating the submerged cooling water buoyant jet into the 3D model. To overcome the scale and interface barriers between the

J. Jiang; D. B. Fissel; D. D. Lemon; D. Topham

2002-01-01

63

Pressures on Arizona Water and Energy Policy: Case Study of the Navajo Generating Station  

E-print Network

1 Pressures on Arizona Water and Energy Policy: Case Study of the Navajo Generating Station Sonya and Development With thanks to: University of Arizona, Technology and Research Initiative Fund 2013/2014 Water Sustainability Graduate Student Fellowship Program & The Renewable Energy Network, Renewable Energy Policy

Fay, Noah

64

EFFECTS OF A 'CLEAN' COAL-FIRED POWER GENERATING STATION ON FOUR COMMON WISCONSIN LICHEN SPECIES  

EPA Science Inventory

Algal plasmolysis percentages and other morphological characteristics of Parmelia bolliana, P. caperata, P. rudecta, and Physicia millegrana were compared for specimens growing near to and far from a rural coal-fired generating station in south central Wisconsin. SO2 levels were ...

65

75 FR 69136 - Southern California Edison Company, San Onofre Nuclear Generating Station, Units 2 and 3...  

Federal Register 2010, 2011, 2012, 2013

...Nuclear Generating Station, Units 2 and 3 (SONGS 2 and 3), located in San Diego County...support structures, water, or land at the SONGS 2 and 3 site. The proposed action is in...significant physical modifications to the SONGS 2 and 3 security systems. While the...

2010-11-10

66

Basis of the standard lifetime of power generating units of nuclear power stations  

Microsoft Academic Search

The lifetime of the power generating plant of a nuclear power station is understood to be the period of time during which the plant maintains its capability of performing production functions within the limits of permissible deviations and in accordance with safety, reliability, production quality and operating efficiency. In special cases, shortening of the plant operation is determined by physical

L. D. Gitel'man; E. F. Ratnikov; V. V. Khanin

1974-01-01

67

Next-Generation Linear Collider Final Focus System Stability Tolerances  

SciTech Connect

The design of final focus systems for the next generation of linear colliders has evolved largely from the experience gained with the design and operation of the Stanford Linear Collider (SLC) and with the design of the Final Focus Test Beam (FFTB). We will compare the tolerances for two typical designs for a next-generation linear collider final focus system. The chromaticity generated by strong focusing systems, like the final quadrupole doublet before the interaction point of a linear collider, can be canceled by the introduction of sextupoles in a dispersive region. These sextupoles must be inserted in pairs separated by a -I transformation (Chromatic Correction Section) in order to cancel the strong geometric aberrations generated by sextupoles. Designs proposed for both the JLC or NLC final focus systems have two separate chromatic correction sections, one for each transverse plane separated by a ''{beta}-exchanger'' to manipulate the {beta}-function between the two CCS. The introduction of sextupoles and bending magnets gives rise to higher order aberrations (long sextupole and chrome-geometries) and radiation induced aberrations (chromaticity unbalance and ''Oide effect'') and one must optimize the lattice accordingly.

Roy, G.; Irwin, J.; /SLAC

2007-04-25

68

Radwaste (DAW) volume reduction cost initiative at the Oyster Creek Nuclear Generation Station  

SciTech Connect

Oyster Creek Nuclear Generating Station is a General Electric Mark 1, 620 MWe (Net) Boiling Water Reactor operated by GPU Nuclear Corporation and located in Forked River, New Jersey. The plant began commercial operation on December 23, 1969, and achieved its longest continuous run during cycle 14 (413 days) 2-16-93 to 9-11-94. As part of the industry-wide initiative to reduce nuclear plant O&M costs, the Electric Power Research Institute (EPRI) was asked by GPU Nuclear to assist the Oyster Creek Nuclear Generating Station (OCNGS) in identifying opportunities for reducing the costs associated with its Radwaste Minimization Program for Dry Active Waste (DAW). The purpose of the project was to evaluate the existing generation, minimization, processing and disposal programs and to identify a wide variety of potential mechanisms for reducing waste volumes and associated costs.

Wacha, A.H. [GPU Nuclear Corporation, Forked River, NJ (United States)

1995-05-01

69

Socio-economic impacts of nuclear generating stations: summary report on the NRC post-licensing studies  

SciTech Connect

Information is presented concerning the conceptual framework for the assessment of socioeconomic impacts; methodology for the post-licensing case studies; socioeconomic changes due to the construction and operation of nuclear generating stations; public response to the construction and operation of nuclear generating stations; socioeconomic consequences of the accident at Three Mile Island; the significance of socioeconomic change due to the construction and operation of nuclear generating stations; findings of the post-licensing studies relative to the nuclear station impact literature; and implications of the findings for projective assessments and planning studies.

Chalmers, J.; Pijawka, D.; Branch, K.; Bergmann, P.; Flynn, J.; Flynn, C.

1982-07-01

70

33 CFR 165.553 - Security Zone; Salem and Hope Creek Generation Stations, Delaware River, Salem County, New Jersey.  

Code of Federal Regulations, 2012 CFR

...Salem and Hope Creek Generation Stations, Delaware River, Salem County, New Jersey. 165.553 Section 165.553 Navigation...Salem and Hope Creek Generation Stations, Delaware River, Salem County, New Jersey. (a) Location. The following area is a security zone: the...

2012-07-01

71

Geothermal energy at Long Beach Naval Shipyard and Naval Station and at Seal Beach Naval Weapons Station, California. Final report  

SciTech Connect

The purpose of this project was to determine and evaluate sources of geothermal energy at two military bases in southern California, the Long Beach Naval Shipyard and Naval Station and the Seal Beach Naval Weapons Station. One part of the project focused on the natural geothermal characteristics beneath the naval bases. Another part focused on the geothermal energy produced by oilfield operations on and adjacent to each base. Results of the study are presented here for the US Department of the Navy to use in its program to reduce its reliance on petrolem by the development of different sources of energy. The study was accomplished under a cooperative agreement between the US Department of Energy's San Francisco Operations Office and the Department of the Navy's Naval Weapons Center, China Lake, California, for joint research and development of geothermal energy at military installations.

Higgins, C.T.; Chapman, R.H.

1984-01-01

72

Solar voltaic generator requirements for large-scale central-station  

NASA Astrophysics Data System (ADS)

A solar voltaic generation (SVG) reference system is examined in terms of engineering and manufacturing requirements and solar voltaic generator characteristics. The SVG system proposed here is composed of four subsystems chosen to conform to existing sectors of the utility engineering and manufacturing industry and the emerging SVG unit supply industry. The four subsystems are: the SVG subsystem, the transmission and station structure system, the power apparatus subsystem, and the monitoring and control subsystem. The material and engineering requirements for the SVG reference system are compared with those for a typical nuclear power plant.

Canada, A. H.

73

Thermal and chemical tests of the steam generator of unit 3 at the Kalinin nuclear power station  

Microsoft Academic Search

The results obtained from combined thermal and chemical tests of the steam generator of Unit 3 at the Kalinin nuclear power\\u000a station are summarized. The obtained data are compared with the results of thermal and chemical tests carried out on steam\\u000a generators at other nuclear power stations equipped with VVER-1000 reactors, and recommendations on selecting the steam-generator\\u000a blowdown schedule are

N. N. Davidenko; N. B. Trunov; E. S. Saakov; A. A. Berezanin; I. N. Bogomolov; V. P. Derii; D. S. Nemytov; D. A. Usanov; N. B. Shestakov; S. V. Shchelik

2007-01-01

74

Developing the concept of maintenance and repairs in projects of power units for new-generation nuclear power stations  

NASA Astrophysics Data System (ADS)

Results from conceptual elaboration of individual requirements for the system of maintenance and repairs that must be implemented in the projects of new-generation nuclear power stations are presented taking as an example the power unit project for a nuclear power station equipped with a standard optimized VVER reactor with enhanced information support (the so-called VVER TOI reactor). Implementation of these concepts will help to achieve competitiveness of such nuclear power stations in the domestic and international markets.

Gurinovich, V. D.; Yanchenko, Yu. A.

2012-05-01

75

Characterization of potential zones of dust generation at eleven stations in the southern Sahara  

NASA Astrophysics Data System (ADS)

Synoptic wind data for multi-decadal periods at eleven stations located in the southern Sahara region (Agadez, Atar, Bilma, Dori, Gao, Kayes, Nema, Niamey, Nouadhibou, Ouagadougou and Tessalit) are used to study the monthly dust deflation power over the region. We found that, regardless of the conditions of the soil, the deflation power (or wind efficiency) is not sufficient to generate significant amounts of aerosols south of 15°N. North of this latitude, the deflation power is much larger, with potential zones of either very strong deflation (Nouadhibou and Bilma) or severe deflation (Gao, Tessalit, Nema, Atar, Agadez). Stations in the Sahel region such as Gao, Agadez and Tessalit are characterized by a gradual reinforcement of the deflation power between 1970 and 1984 in correspondence of increasing desertification over the region. During this same period, Bilma, a well know region of dust source, experienced a major reduction in deflation power due to shifts in large scale wind patterns.

Clark, I.; Assamoi, P.; Bertrand, J.; Giorgi, F.

76

75 FR 13801 - Exelon Generation Company, LLC; Zion Nuclear Power Station, Units 1 and 2; Order Extending the...  

Federal Register 2010, 2011, 2012, 2013

...Company, LLC; Zion Nuclear Power Station, Units 1 and 2; Order Extending...Amendment I Exelon Generation Company, LLC (Exelon...DPR-48, for the Zion Nuclear Power Station, Units 1 and 2 (Zion facilities...184 of the Atomic Energy Act of 1954,...

2010-03-23

77

STRUCTURE OF CORTICOLOUS LICHEN COMMUNITIES BEFORE AND AFTER EXPOSURE TO EMISSIONS FROM A 'CLEAN' COAL-FIRED GENERATING STATION  

EPA Science Inventory

Lichen communities of black oak group (Quercus (Erythrobalanus) spp.) tree trunks in 29 study sites near the rural Columbia generating station, Portage, Wisconsin, were surveyed before (1974) and three years after (1978) station operations began, to determine if SO2 air pollution...

78

Safety research of insulating materials of cable for nuclear power generating station  

NASA Technical Reports Server (NTRS)

The polymers PE, EPR, PVC, Neoprene, CSP, CLPE, EP and other similar substances are frequently used as insulation and protective covering for cables used in nuclear power generating stations. In order to test these materials for flame retardation, environmental resistance, and cable specifications, they were given the cable normal test, flame test, chemical tests, and subjected to design analysis and loss of coolant accident tests. Material was collected on spark tests and actual experience standards were established through these contributions and technology was accumulated.

Lee, C. K.; Choi, J. H.; Kong, Y. K.; Chang, H. S.

1988-01-01

79

A study of the juvenile fish fauna associated with the cooling water of a steam electric generating station  

E-print Network

A STUDY OF THE JUVENILE FISH FAUNA ASSOCIATED WITH THE COOLING WATER OF A STEAM ELECTRIC GENERATING STATION A Thesis by MARTHA MARY McCULLOUGH Submitted to the Graduate College of Texas A&M University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE December 1971 Major Subject: Fisheries Science A STUDY OF THE JUVENILE FISH FAUNA ASSOCIATED WITH THE COOLING WATER OF A STEAM ELECTRIC GENERATING STATION A Thesis by MARTHA MARY McCULLOUGH Approved...

McCullough, Martha Mary

2012-06-07

80

Next-Generation Real-Time Geodetic Station Sensor Web for Natural Hazards Research and Applications  

NASA Astrophysics Data System (ADS)

We report on a NASA AIST project focused on better forecasting, assessing, and mitigating natural hazards, including earthquakes, tsunamis, and extreme storms and flooding through development and implementation of a modular technology for the next-generation in-situ geodetic station, and a Geodetic Sensor Web to support the flow of information from multiple stations to scientists, mission planners, decision makers, and first responders. Meaningful warnings save lives when issued within 1-2 minutes for destructive earthquakes, several tens of minutes for tsunamis, and up to several hours for extreme storms and flooding, and can be provided by on-site fusion of multiple data types and generation of higher-order data products: GPS and accelerometer measurements to estimate point displacements, and GPS and meteorological measurements to estimate moisture variability in the free atmosphere. By operating semi-autonomously, each station can provide low-latency, high-fidelity and compact data products within the constraints of narrow communications bandwidth that often accompanies natural disasters. The project encompasses the following tasks, including hardware and software components: (1) Development of a power-efficient, low-cost, plug-in Geodetic Module for fusion of data from in situ sensors including GPS, a MEMS accelerometer package, and a MEMS meteorological sensor package, for deployment at 26 existing continuous GPS stations in southern California. The low-cost modular design is scalable to the many existing continuous GPS stations worldwide. (2) Estimation of new on-the-fly data products with 1 mm precision and accuracy, including three-dimensional broadband displacements and precipitable water, by new software embedded in the Geodetic Module's processor, rather than at a central processing facility. (3) Development of a Geodetic Sensor Web to allow the semi-autonomous sensors to transmit and receive information in real time by means of redundant sensor proxy servers and message broker networks to allow for robust sensor control, flow of data, data products, models and alarms, and to avoid single points of failure during emergencies. The team from SIO and JPL is working with users at the two National Weather Service Weather Forecast Offices in southern California (San Diego and Los Angeles/Oxnard) and NOAA's Earth System Research Laboratory in Boulder to provide tropospheric signal delays and precipitable water vapor estimates for forecasting severe storms and flooding. Broadband displacements for earthquake and tsunami early warning and rapid response are being made available to users in the geophysics community through the Southern California Earthquake Data Center at Caltech.

Bock, Y.; Clayton, R. W.; Fang, P.; Geng, J.; Gutman, S. I.; Kedar, S.; Laber, J. L.; Moore, A. W.; Owen, S. E.; Small, I.; Squibb, M. B.; Webb, F.; Yu, E.

2012-12-01

81

Staff Draft Report. Comparative Cost of California Central Station Electricity Generation Technologies.  

SciTech Connect

This Energy Commission staff draft report presents preliminary levelized cost estimates for several generic central-station electricity generation technologies. California has traditionally adopted energy policies that balance the goals of supporting economic development, improving environmental quality and promoting resource diversity. In order to be effective, such policies must be based on comprehensive and timely gathering of information. With this goal in mind, the purpose of the report is to provide comparative levelized cost estimates for a set of renewable (e.g., solar) and nonrenewable (e.g., natural gas-fired) central-station electricity generation resources, based on each technology's operation and capital cost. Decision-makers and others can use this information to compare the generic cost to build specific technology. These costs are not site specific. If a developer builds a specific power plant at a specific location, the cost of siting that plant at that specific location must be considered. The Energy Commission staff also identifies the type of fuel used by each technology and a description of the manner in which the technology operates in the generation system. The target audiences of this report are both policy-makers and anyone wishing to understand some of the fundamental attributes that are generally considered when evaluating the cost of building and operating different electricity generation technology resources. These costs do not reflect the total cost to consumers of adding these technologies to a resources portfolio. These technology characterizations do not capture all of the system, environmental or other relevant attributes that would typically be needed by a portfolio manager to conduct a comprehensive ''comparative value analysis''. A portfolio analysis will vary depending on the particular criteria and measurement goals of each study. For example, some form of firm capacity is typically needed with wind generation to support system reliability. [DJE-2005

Badr, Magdy; Benjamin, Richard

2003-02-11

82

Status of the International Space Station Regenerative ECLSS Water Recovery and Oxygen Generation Systems  

NASA Technical Reports Server (NTRS)

NASA is developing three racks containing regenerative water recovery and oxygen generation systems (WRS and OGS) for deployment on the International Space Station (ISS). The major assemblies included in these racks are the Water Processor Assembly (WPA), Urine Processor Assembly (UPA), Oxygen Generation Assembly (OGA), and the Power Supply Module (PSM) supporting the OGA. The WPA and OGA are provided by Hamilton Sundstrand Space Systems International (HSSSI), Inc., while the UPA and PSM are developed in- house by the Marshall Space Flight Center (MSFC). The assemblies have completed the manufacturing phase and are in various stages of testing and integration into the flight racks. This paper summarizes the status as of April 2005 and describes some of the technical challenges encountered and lessons learned over the past year.

Bagdigian, Robert M.; Cloud, Dale

2005-01-01

83

75 FR 52375 - Dominion Energy Kewaunee, Inc. Kewaunee Power Station; Notice of Availability of the Final...  

Federal Register 2010, 2011, 2012, 2013

...Renewal of Kewaunee Power Station Notice is...that the U.S. Nuclear Regulatory Commission...License Renewal of Nuclear Plants (GEIS...operation for Kewaunee Power Station (KPS...east-southeast of Green Bay, WI. Possible...reasonable alternative energy sources. As...

2010-08-25

84

Development of an HTS hydroelectric power generator for the hirschaid power station  

NASA Astrophysics Data System (ADS)

This paper describes the development and manufacture of a 1.7MW, 5.25kV, 28pole, 214rpm hydroelectric power generator consisting of superconducting HTS field coils and a conventional stator. The generator is to be installed at a hydro power station in Hirschaid, Germany and is intended to be a technology demonstrator for the practical application of superconducting technology for sustainable and renewable power generation. The generator is intended to replace and uprate an existing conventional generator and will be connected directly to the German grid. The HTS field winding uses Bi-2223 tape conductor cooled to about 30K using high pressure helium gas which is transferred from static cryocoolers to the rotor via a bespoke rotating coupling. The coils are insulated with multi-layer insulation and positioned over laminated iron rotor poles which are at room temperature. The rotor is enclosed within a vacuum chamber and the complete assembly rotates at 214rpm. The challenges have been significant but have allowed Converteam to develop key technology building blocks which can be applied to future HTS related projects. The design challenges, electromagnetic, mechanical and thermal tests and results are presented and discussed together with applied solutions.

Fair, Ruben; Lewis, Clive; Eugene, Joseph; Ingles, Martin

2010-06-01

85

Next-Generation Geodetic Station for Natural Hazards Research and Applications  

NASA Astrophysics Data System (ADS)

The last few years have seen an apparent increase in natural disasters worldwide and certainly an increase in disaster-related loss of life and property due to earthquakes, tsunamis, severe storms, and flooding. The latest example is the March 11, 2011 Mw 9.0 Tohoku-oki earthquake and ensuing tsunami and nuclear meltdown, whose devastating humanitarian and socio-economic effects still ripple throughout Japan and the world. Enhanced in situ geodetic monitoring has been shown to be a critical element in mitigating the effects of these types of natural disasters. For example, it took Japanese authorities relying solely on seismic instruments about 20 minutes to determine that a great earthquake had occurred on March 11. Initial estimates by the Japan Meteorological Agency were of a magnitude 6.8 earthquake after 3 minutes, and a magnitude 7.9 after 10-20 minutes. Using the existing real-time high-rate GPS network in Japan (GEONET) in a simulated real-time mode, we demonstrate that it would have taken only 2-3 minutes to determine that the magnitude was 9.0. Early detection of this great earthquake was of the essence, since the first tsunami waves hit the coastline after only 30 minutes. We describe the components of a next-generation in situ geodetic observatory, one of whose primary applications is to forecast, assess, and mitigate these types of natural hazards as part of an information system for scientists, mission planners, decision makers, and first responders. To provide meaningful early warnings for earthquakes (up to several minutes in advance), for tsunamis (several tens of minutes), and for major storms and flooding (up to 24 hours), future geodetic observatories will require continuous displacement and precipitable water estimates, with mm-level precision and accuracy. To achieve this in an efficient manner will require on-site fusion of multiple data types and generation of higher-order data products: Global Navigation Satellite Systems (GNSS) and accelerometer measurements to estimate point displacements, and GNSS and meteorological measurements to estimate precipitable water. By allowing autonomous, low-latency, and compact data products, we anticipate narrow communications bandwidths that often accompany natural disasters, make possible more efficient data analysis, and provide a modular design that can be used to efficiently upgrade the thousands of existing geodetic stations. By integrating individual stations into a real-time geodetic sensor web, in which individual sensors/stations share and update their information with multiple regional processing nodes, the cumulative fidelity of the Earth science products they produce is further enhanced and single points of failure at central processing facilities are eliminated. Next-generation geodetic stations can also supply real-time calibration information to several NASA space missions, e.g., the NPP mission as part of a demonstration of the next-generation weather satellite and the DESDynI mission, and contribute to NASA's Space Geodesy Project (SGP) which is developing the next generation of collocated space geodetic fiducial stations.

Bock, Y.; Melgar-Moctezuma, D.; Crowell, B. W.; Webb, F.; Moore, A. W.; Kedar, S.; Owen, S. E.; Clayton, R. W.

2011-12-01

86

76 FR 11522 - Nuclear Innovation North America LLC; Notice of Availability of the Final Environmental Impact...  

Federal Register 2010, 2011, 2012, 2013

...cooperating agency have published a final environmental impact statement...Licenses (COLs) at the South Texas Project Electric Generating Station Units 3 and 4: Final Report'' for the South Texas Project Electric Generating Station...

2011-03-02

87

First Generation Final Focusing Solenoid For NDCX-I  

SciTech Connect

This report describes the prototype final focus solenoid (FFS-1G), or 1st generation FFS. In order to limit eddy currents, the solenoid winding consists of Litz wire wound on a non-conductive G-10 tube. For the same reason, the winding pack was inserted into an electrically insulating, but thermally conducting Polypropylene (Cool- Poly© D1202) housing and potted with highly viscous epoxy (to be able to wick the single strands of the Litz wire). The magnet is forced-air cooled through cooling channels. The magnet was designed for water cooling, but he cooling jacket cracked, and therefore cooling (beyond natural conduction and radiation) was exclusively by forced air. Though the design operating point was 8 Tesla, for the majority of running on NDCX-1 it operated up to about 5 Tesla. This was due mostly from limitations of voltage holding at the leads, where discharges at higher pulsed current damaged the leads. Generation 1 was replaced by the 2nd generation solenoid (FFS-2G) about a year later, which has operated reliably up to 8 Tesla, with a better lead design and utilizes water cooling. At this point, FFS-1G was used for plasma source R&D by LBNL and PPPL. The maximum field for those experiments was reduced to 3 Tesla due to continued difficulty with the leads and because higher field was not essential for those experiments. The pulser for the final focusing solenoid is a SCR-switched capacitor bank which produces a half-sine current waveform. The pulse width is ~800us and a charge voltage of 3kV drives ~20kA through the magnet producing ~8T field.

Seidl, P. A.; Waldron, W.

2011-11-09

88

Final Report for Intravenous Fluid Generation (IVGEN) Spaceflight Experiment  

NASA Technical Reports Server (NTRS)

NASA designed and operated the Intravenous Fluid Generation (IVGEN) experiment onboard the International Space Station (ISS), Increment 23/24, during May 2010. This hardware was a demonstration experiment to generate intravenous (IV) fluid from ISS Water Processing Assembly (WPA) potable water using a water purification technique and pharmaceutical mixing system. The IVGEN experiment utilizes a deionizing resin bed to remove contaminants from feedstock water to a purity level that meets the standards of the United States Pharmacopeia (USP), the governing body for pharmaceuticals in the United States. The water was then introduced into an IV bag where the fluid was mixed with USP-grade crystalline salt to produce USP normal saline (NS). Inline conductivity sensors quantified the feedstock water quality, output water purity, and NS mixing uniformity. Six 1.5-L bags of purified water were produced. Two of these bags were mixed with sodium chloride to make 0.9 percent NS solution. These two bags were returned to Earth to test for compliance with USP requirements. On-orbit results indicated that all of the experimental success criteria were met with the exception of the salt concentration. Problems with a large air bubble in the first bag of purified water resulted in a slightly concentrated saline solution of 117 percent of the target value of 0.9 g/L. The second bag had an inadequate amount of salt premeasured into the mixing bag resulting in a slightly deficient salt concentration of 93.8 percent of the target value. The USP permits a range from 95 to 105 percent of the target value. The testing plans for improvements for an operational system are also presented.

McQuillen, John B.; McKay, Terri L.; Griffin, DeVon W.; Brown, Dan F.; Zoldak, John T.

2011-01-01

89

Energy Storage and Distributed Energy Generation Project, Final Project Report  

SciTech Connect

This report serves as a Final Report under the “Energy Storage and Distribution Energy Generation Project” carried out by the Transportation Energy Center (TEC) at the University of Michigan (UM). An interdisciplinary research team has been working on fundamental and applied research on: -distributed power generation and microgrids, -power electronics, and -advanced energy storage. The long-term objective of the project was to provide a framework for identifying fundamental research solutions to technology challenges of transmission and distribution, with special emphasis on distributed power generation, energy storage, control methodologies, and power electronics for microgrids, and to develop enabling technologies for novel energy storage and harvesting concepts that can be simulated, tested, and scaled up to provide relief for both underserved and overstressed portions of the Nation’s grid. TEC’s research is closely associated with Sections 5.0 and 6.0 of the DOE "Five-year Program Plan for FY2008 to FY2012 for Electric Transmission and Distribution Programs, August 2006.”

Schwank, Johannes; Mader, Jerry; Chen, Xiaoyin; Mi, Chris; Linic, Suljo; Sastry, Ann Marie; Stefanopoulou, Anna; Thompson, Levi; Varde, Keshav

2008-03-31

90

Geothermal resource evaluation at Naval Air Station Fallon, Nevada. Final report, June 1985-August 1986  

SciTech Connect

During the summer of 1986, Fallon Observation Hole 2 (FOH-2) was drilled in the southeast corner of Naval Air Station (NAS) Fallon, Nevada, to provide additional information on the geothermal resource at that installation.

Katzenstein, A.M.; Bjornstad, S.C.

1987-08-01

91

75 FR 47856 - Nebraska Public Power District: Cooper Nuclear Station; Notice of Availability of the Final...  

Federal Register 2010, 2011, 2012, 2013

...that the U.S. Nuclear Regulatory Commission...License Renewal of Nuclear Plants (GEIS...operation for the Cooper Nuclear Station (CNS). CNS is...by Nebraska Public Power District; (3...Access and Management System (ADAMS). The...

2010-08-09

92

The Satellite Nuclear Power Station - An option for future power generation.  

NASA Technical Reports Server (NTRS)

A new concept in nuclear power generation is being explored which essentially eliminates major objections to nuclear power. The Satellite Nuclear Power Station, remotely operated in synchronous orbit, would transmit power safely to the ground by a microwave beam. Fuel reprocessing would take place in space and no radioactive materials would ever be returned to earth. Even the worst possible accident to such a plant should have negligible effect on the earth. An exploratory study of a satellite nuclear power station to provide 10,000 MWe to the earth has shown that the system could weigh about 20 million pounds and cost less than $1000/KWe. An advanced breeder reactor operating with an MHD power cycle could achieve an efficiency of about 50% with a 1100 K radiator temperature. If a hydrogen moderated gas core reactor is used, its breeding ratio of 1.10 would result in a fuel doubling time of a few years. A rotating fluidized bed or NERVA type reactor might also be used. The efficiency of power transmission from synchronous orbit would range from 70% to 80%.

Williams, J. R.; Clement, J. D.

1973-01-01

93

Defective-fuel analysis for the Point Lepreau Nuclear Generating Station  

SciTech Connect

From January 24, 1991, to February 19, 1992, increased radiation levels in the primary heat transport system (PHTS) were recorded by the gaseous fission product monitoring system at the Point Lepreau nuclear generating station. The fission product activity was attributed to cladding defects that had resulted from sheath hydriding due to an excess of hydrogen in the CANLUB coating of several batches of fuel. A model of fission product release from defective fuel under normal operating conditions has previously been validated with a series of experiments conducted in the X-2 loop at Chalk River Laboratories (CRL) and has become the basis of an expert system. This paper describes the application of the model to the analysis of fission product activity at the Point Lepreau reactor.

Lewis, B.J.; Harnden-Gillis, A.C.; Gibb, R.A.; Whynot, T.M.

1994-12-31

94

International Space Station United States Orbital Segment Oxygen Generation System On-Orbit Operational Experience  

NASA Technical Reports Server (NTRS)

The International Space Station (ISS) United States Orbital Segment (USOS) Oxygen Generation System (OGS) was originally intended to be installed in ISS Node 3. The OGS rack delivery was accelerated, and it was launched to ISS in July of 2006 and installed in the US Laboratory Module. Various modification kits were installed to provide its interfaces, and the OGS was first activated in July of 2007 for 15 hours, In October of 2007 it was again activated for 76 hours with varied production rates and day/night cycling. Operational time in each instance was limited by the quantity of feedwater in a Payload Water Reservoir (PWR) bag. Feedwater will be provided by PWR bag until the USOS Water Recovery System (WRS) is delivered to SS in fall of 2008. This paper will discuss operating experience and characteristics of the OGS, as well as operational issues and their resolution.

Erickson, Robert J.; Howe, John, Jr.; Kulp, Galen W.; VanKeuren, Steven P.

2008-01-01

95

Oconee Nuclear Power Station Main Steam Line Break Analysis for Steam Generator Tube Stress Evaluation  

SciTech Connect

For certain steam line break (SLB) analyses, the RETRAN-3D Oconee model predicts water carryout through the break. The amount of liquid carried from the system is dependent on the assumed break size, feedwater boundary conditions, and initial conditions. Although liquid carryout is potentially realistic during this scenario, there are no plant or test facility data on which to validate the amount of water carryout.Because the steam generator tube stress evaluation is a safety related analysis, a conservative approach is required. Overcooling effects for an SLB transient are maximized by retaining as much steam generator liquid as possible to remove energy from the reactor coolant system. Because water carryout is nonconservative, and due to the lack of data, the analysis is performed assuming no liquid is carried from the break. This boundary condition is difficult to impose on a RETRAN-3D analysis since the amount of liquid entrained in the break flow is determined by internal code models, which the analyst cannot control directly.This paper presents the methodology used to eliminate water carryout for these types of calculations. The methodology consists of a combination of special RETRAN-3D code modifications and model input changes.In the second part of the paper, the results of an SLB analysis for the Oconee Nuclear Station employing the above methodology are presented. These analyses are done to compute the temperature differences between the steam generator tubes and the shell of the once-through steam generator. The temperature of the thin tubes decreases much faster than the temperature of the shell during an overcooling transient such as an SLB, resulting in tensile stresses that might lead to tube failures.A number of break sizes were analyzed starting with a double-ended main SLB down to a small break of 0.0372 m{sup 2} (0.4 ft{sup 2}). The sensitivity of the tube tensile stress to the assumed break size is presented.

Muransky, Jan S.; Shatford, John G.; Peterson, Craig E.; Swindlehurst, Gregg B

2004-10-15

96

Development of the Next Generation Gas Trap for the Space Station Internal Thermal Control System  

NASA Technical Reports Server (NTRS)

The current dual-membrane gas trap is designed to remove non-condensed gases (NCG) from the Internal Thermal Control System (ITCS) coolant on board the International Space Station (ISS). To date it has successfully served its purpose of preventing depriming, overspeed, and shutdown of the ITCS pump. However, contamination in the ITCS coolant has adversely affected the gas venting rate and lifetime of the gas trap, warranting a development effort for a next-generation gas trap. Design goals are to meet or exceed the current requirements to (1) include greater operating ranges and conditions, (2) eliminate reliance on the current hydrophilic tube fabrication process, and (3) increase operational life and tolerance to particulate and microbial growth fouling. In addition, the next generation gas trap will essentially be a 'dropin" design such that no modifications to the ITCS pump package assembly (PPA) will be required, and the implementation of the new design will not affect changes to the ITCS operational conditions, interfaces, or software. This paper will present the initial membrane module design and development work which has included (1) a trade study among several conceptual designs, (2) performance modeling of a hydrophobic-only design, and (3) small-scale development test data for the hydrophobic-only design. Testing has shown that the hydrophobic-only design is capable of performing even better than the current dual-membrane design for both steady-state gas removal and gas slug removal.

Holt, James M.; Leimkuehler, Thomas O.; Spelbring, Chris; Reeves, Daniel R.

2003-01-01

97

Development of the Second Generation International Space Station (ISS) Total Organic Carbon Analyzer (TOCA)  

NASA Technical Reports Server (NTRS)

The second generation International Space Station (ISS) Total Organic Carbon Analyzer s (TOCA) function is to monitor concentrations of Total Organic Carbon (TOC) in ISS water samples. TOC is one measurement that provides a general indication of overall water quality by indicating the potential presence of hazardous chemicals. The data generated from the TOCA is used as a hazard control to assess the quality of the reclaimed and stored water supplies on-orbit and their suitability for crew consumption. This paper details the unique ISS Program requirements, the design of the ISS TOCA, and a brief description of the on-orbit concept-of-operations. The TOCA schematic will be discussed in detail along with specific information regarding key components. The ISS TOCA was designed as a non-toxic TOC analyzer that could be deployed in a flight ready package. This basic concept was developed through laboratory component level testing, two moderate fidelity integrated system breadboard prototypes, a flight-like full scale prototype, as well as lessons learned from the inadequacies of the first unit. The result: a new TOCA unit that is robust in design and includes special considerations to microgravity and the on-orbit ISS environment. TOCA meets the accuracy needs of the ISS Program with a 1,000 to 25,000 g/L range, accurate to within +/-25%.

Clements, Anna L.; Stinson, Richard G.; VanWie, Michael; Warren, Eric

2009-01-01

98

72 FR 71450 - PPL Susquehanna, LLC; Susquehanna Steam Electric Station, Units 1 and 2 Final Environmental...  

Federal Register 2010, 2011, 2012, 2013

...increase the flow of steam to the turbine. This...heat delivered to the condenser, and an increase in...to store the original steam dryers. Existing parking...Operation of Susquehanna Steam Electric Station, Units...which cools the main condensers) to the...

2007-12-17

99

Economic and Conservation Evaluation of Capital Renovation Projects: United Irrigation District of Hidalgo County (United) – Rehabilitation of Main Canal, Laterals, and Diversion Pump StationFinal  

E-print Network

TR-288 March 2006 Economic and Conservation Evaluation of Capital Renovation Projects: United Irrigation District of Hidalgo County (United) – Rehabilitation of Main Canal, Laterals, and Diversion Pump StationFinal M. Edward Rister Ronald D...) – Rehabilitation of Main Canal, Laterals, and Diversion Pump StationFinal This research was supported by the “Rio Grande Basin Initiative” which is administered by the Texas Water Resources Institute of the Texas A&M University System with funds provided...

Rister, M. Edward; Lacewell, Ronald D.; Sturdivant, Allen W.

100

Space station needs, attributes and architectural options study. Briefing material: Final review and executive summary  

NASA Technical Reports Server (NTRS)

Advantages and disadvantages were assessed for configuration options for a modular 14' diameter space station, a modular aft cargo carrier and a shuttle derived vehicle. Early, intermediate, and mature configurations were defined as well as power requirements, heat rejection, hydrazine usage, and the external scavenging concept. Subsystems were analyzed for propulsion, attitude control, data processing, and communications. Areas of uncertainties, associated costs and benefits, and the cost by phase of the modular and shuttle derived vehicle configurations were identified. Technologies assessed included solar vs nuclear; gravity gradient vs active control; heat pipe radiators vs fluid loops; distributed processors vs centralized, and modular vs shuttle derived configuration. It was determined that the early space station architecture should include: (1) reusable OTV with aerobraking; (2) TMS with telepresence services; (3) OTV/TMS refueling and servicing capability; and (4) attached research laboratories for life sciences and materials processing.

1983-01-01

101

Survey of flue gas desulfurization systems, Paddy's Run Station, Louisville Gas and Electric. Final report  

Microsoft Academic Search

The report gives results of a survey of the flue gas desulfurization (FGD) system on Unit 6 of Louisville Gas and Electric Co.'s Paddy's Run Power Station. The closed-loop system, which was started up in April 1973, uses a slurry of carbide lime in a marble-bed scrubber. The carbide lime, a waste by-product from a nearby acetylene manufacturing plant, contains

Isaacs

1975-01-01

102

ECOLOGICAL STUDIES OF FISH NEAR A COAL-FIRED GENERATING STATION AND RELATED LABORATORY STUDIES. WISCONSIN POWER PLANT IMPACT STUDY  

EPA Science Inventory

Construction of a coal-fired electric generating station on wetlands adjacent to the Wisconsin River has permanently altered about one-half of the original 1,104-ha site. Change in the remaining wetlands continues as a result of waste heat and ashpit effluent produced by the stat...

103

Review of the Rancho Seco Nuclear Generating Station Unit No. 1 auxiliary feedwater-system reliability analysis  

Microsoft Academic Search

This report presents the results of a review of the Auxiliary Feedwater System Upgrade Reliability Analysis for the Rancho Seco Nuclear Generating Station Unit No. 1. The objective of this report is to estimate the availability of the Auxiliary Feedwater System when required to perform its mission for each of three different initiators: (1) loss of main feedwater with offsite

D. Ilberg; R. Youngblood; I. A. Papazoglou

1983-01-01

104

75 FR 14211 - Southern California Edison, San Onofre Nuclear Generating Station, Unit 2 and Unit 3; Exemption  

Federal Register 2010, 2011, 2012, 2013

...San Onofre Nuclear Generating Station (SONGS), Unit 2 and Unit 3, respectively...discussed in the June 4, 2009, letter. SONGS Schedule Exemption Request The licensee...enhancement of the security capabilities at the SONGS site and provides a timeline for...

2010-03-24

105

75 FR 71152 - Southern California Edison; San Onofre Nuclear Generating Station, Unit 2 and Unit 3; Exemption  

Federal Register 2010, 2011, 2012, 2013

...San Onofre Nuclear Generating Station (SONGS), Unit 2 and Unit 3, respectively...discussed in the June 4, 2009, letter. SONGS Schedule Exemption Request The licensee...enhancement of the security capabilities at the SONGS site to achieve full compliance with...

2010-11-22

106

Steady state stability of a remote gas-turbine generating station: field tests and validation of computer simulation results  

Microsoft Academic Search

This paper examines the steady state stability aspects of a remote power station. Results of staged-tests, performed on two gas turbine units, are utilized to validate and improve on the generator and excitation system models used in simulation studies. The validated models allow stability limits for these units to be determined much more accurately. A new underexcitation limiter scheme is

S. H. Choi; R. Larkin

1993-01-01

107

Aging management program of the reactor building concrete at Point Lepreau Generating Station  

NASA Astrophysics Data System (ADS)

In order for New Brunswick Power Nuclear (NBPN) to control the risks of degradation of the concrete reactor building at the Point Lepreau Generating Station (PLGS) the development of an aging management plan (AMP) was initiated. The intention of this plan was to determine the requirements for specific structural components of concrete of the reactor building that require regular inspection and maintenance to ensure the safe and reliable operation of the plant. The document is currently in draft form and presents an integrated methodology for the application of an AMP for the concrete of the reactor building. The current AMP addresses the reactor building structure and various components, such as joint sealant and liners that are integral to the structure. It does not include internal components housed within the structure. This paper provides background information regarding the document developed and the strategy developed to manage potential degradation of the concrete of the reactor building, as well as specific programs and preventive and corrective maintenance activities initiated.

Aldea, C.-M.; Shenton, B.; Demerchant, M. M.; Gendron, T.

2011-04-01

108

HT to HTO conversion and field experiments near Darlington Nuclear Power Generating Station (DNPGS) site.  

PubMed

The Canadian input parameters related to tritiated hydrogen gas (HT) used in tritium dose models are currently based on experiments performed at the Chalk River Laboratories (CRL) site in 1986, 1987 and 1994. There is uncertainty in how well other sites experiencing atmospheric HT releases are represented by these data. In order to address this uncertainty, HT to HTO conversion factors were evaluated at different locations near the Darlington Nuclear Power Generating Station (DNPGS) site using various experimental approaches. These were D2 gas exposure chamber experiments, atmospheric tritium measurements, and HTO and OBT measurements in vegetation and soil. In addition to these field experiments, chamber experiments were conducted using HT gas on field soil samples. The suggested Canadian input parameters for atmospheric tritium releases estimate the total fraction of HT oxidized in air and in soil, at the site, to be up to a maximum of 2.4%. Based on the more limited data obtained near DNPGS in early spring, this fraction would likely be closer to 0.5%. The result suggests that current parameters provide a conservative estimate for the DNPGS site. PMID:24565644

Kim, S B; Stuart, M; Bredlaw, M; Festarini, A; Beaton, D

2014-06-01

109

Elimination of redundant thermoluminescent dosemeter monitoring at Oyster Creek nuclear generating station  

SciTech Connect

The Oyster Creek direct radiation monitoring network has long been operating using several time-scale measurements. This network is used to assess the radiation levels during normal plant operations as well as to set the background radiation levels used to determine the radiological impact of a nonroutine release of radioactivity from the plant. Through analysis of the behavior of the monthly and quarterly activity of several types of direct radiation monitoring, the successful elimination of redundant and artificially high measurement techniques has been done in concert with providing the community with most efficient direct radiation monitoring methods. Dose rates from external radiation sources are measured around licensed U.S. Nuclear Regulatory Commission (NRC) facilities using passive detectors known as thermoluminescent dosimeters (TLDs). These detectors provide a quantitative measurement of the radiation levels in the are in which they are placed. The detected radiation could be the result of cosmic or naturally occurring origin in the air and on the ground, prior nuclear weapons testing, and activity from a nuclear facility. This paper describes the TLD network placed around the Oyster Creek nuclear generating station (OCNGS) and the comparisons between TLDs of different manufacturers and of different resident times and the successful elimination of the less accurate monthly TLD for the purpose of cost containment.

Schwartz, P.E.

1989-01-01

110

Structural integrity analysis of the degraded drywell containment at the Oyster Creek Nuclear generating station.  

SciTech Connect

This study examines the effects of the degradation experienced in the steel drywell containment at the Oyster Creek Nuclear Generating Station. Specifically, the structural integrity of the containment shell is examined in terms of the stress limits using the ASME Boiler and Pressure Vessel (B&PV) Code, Section III, Division I, Subsection NE, and examined in terms of buckling (stability) using the ASME B&PV Code Case N-284. Degradation of the steel containment shell (drywell) at Oyster Creek was first observed during an outage in the mid-1980s. Subsequent inspections discovered reductions in the shell thickness due to corrosion throughout the containment. Specifically, significant corrosion occurred in the sandbed region of the lower sphere. Since the presence of the wet sand provided an environment which supported corrosion, a series of analyses were conducted by GE Nuclear Energy in the early 1990s. These analyses examined the effects of the degradation on the structural integrity. The current study adopts many of the same assumptions and data used in the previous GE study. However, the additional computational recourses available today enable the construction of a larger and more sophisticated structural model.

Petti, Jason P.

2007-01-01

111

Niobate-based microwave dielectrics suitable for third generation mobile phone base stations  

NASA Astrophysics Data System (ADS)

High unloaded quality factor (Qu), zero temperature coefficient of resonant frequency (?f) and high relative permittivity (?r) microwave dielectric ceramics have been fabricated based on BaZn1/3Nb2/3O3. Properties have been optimized for the composition, 0.9Ba([Zn0.60Co0.40]1/3Nb2/3)O3-0.1Ba(Ga0.5Ta0.5)O3 for which Qu=32 000 @ 3.05 GHz, ?r=35, and ?f=0. The new compounds are disordered according to x-ray diffraction (XRD) and may be indexed using a simple perovskite unit cell, a=4.09 Å. Small peaks (e.g., d?3.01 Å, relative intensity, 4.5) attributed to a barium niobate second phase are also present in XRD patterns. These ceramics are suitable in terms of cost and performance for base stations supporting third generation architecture.

Hughes, H.; Iddles, D. M.; Reaney, I. M.

2001-10-01

112

Intake-to-delivered-energy ratios for central station and distributed electricity generation in California  

NASA Astrophysics Data System (ADS)

In previous work, we showed that the intake fraction (iF) for nonreactive primary air pollutants was 20 times higher in central tendency for small-scale, urban-sited distributed electricity generation (DG) sources than for large-scale, central station (CS) power plants in California [Heath, G.A., Granvold, P.W., Hoats, A.S., Nazaroff, W.W., 2006. Intake fraction assessment of the air pollutant exposure implications of a shift toward distributed electricity generation. Atmospheric Environment 40, 7164-7177]. The present paper builds on that study, exploring pollutant- and technology-specific aspects of population inhalation exposure from electricity generation. We compare California's existing CS-based system to one that is more reliant on DG units sited in urban areas. We use Gaussian plume modeling and a GIS-based exposure analysis to assess 25 existing CSs and 11 DG sources hypothetically located in the downtowns of California's most populous cities. We consider population intake of three pollutants—PM 2.5, NO x and formaldehyde—directly emitted by five DG technologies—natural gas (NG)-fired turbines, NG internal combustion engines (ICE), NG microturbines, diesel ICEs, and fuel cells with on-site NG reformers. We also consider intake of these pollutants from existing CS facilities, most of which use large NG turbines, as well as from hypothetical facilities located at these same sites but meeting California's best-available control technology standards. After systematically exploring the sensitivity of iF to pollutant decay rate, the iFs for each of the three pollutants for all DG and CS cases are estimated. To efficiently compare the pollutant- and technology-specific exposure potential on an appropriate common basis, a new metric is introduced and evaluated: the intake-to-delivered-energy ratio (IDER). The IDER expresses the mass of pollutant inhaled by an exposed population owing to emissions from an electricity generation unit per quantity of electric energy delivered to the place of use. We find that the central tendency of IDER is much greater for almost every DG technology evaluated than for existing CS facilities in California.

Heath, Garvin A.; Nazaroff, William W.

113

Chalk Point steam electric station studies Patuxent Estuary studies: ichthyoplankton population studies, 1979. Final report  

SciTech Connect

Two years of riverwide ichthyoplankton data were collected as a part of a series of studies at the Chalk Point Steam Electric Station (SES) to contribute data necessary to evaluate information to be presented in the 316 variance demonstration document scheduled for Units 1 and 2 of this facility during 1981. These studies also provided information on the regional spatial and temporal distribution of fish eggs and larvae required to put nearfield studies conducted by the Potomac Electric Power Company into regional context. The principal species collected were white perch, striped bass, bay anchovy, sliversides, naked goby, yellow perch, and clupeids.

Mihursky, J.A.; Wood, K.V.; Kerig, S.; Setzler-Hamilton, E.M.

1980-04-01

114

Remote material analysis of nuclear power station steam generator tubes by laser-induced breakdown spectroscopy  

Microsoft Academic Search

We report on a novel design 75-m length umbilical fiber-optic LIBS (FOLIBS) system suitable for remotely determining the copper content of 316H austenitic stainless steel superheater bifurcation tubing within the pressure vessels of Advanced Gas Cooled Reactor (AGR) nuclear power stations. The system was deployed during the routine reactor outage programs for Hunterston ‘B’ and Hinkley Point ‘B’ stations during

A. I. Whitehouse; J. Young; I. M. Botheroyd; S. Lawson; C. P. Evans; J. Wright

2001-01-01

115

Ecological studies of wood-boring bivalves in the vicinity of the Oyster Creek Nuclear Generating Station. Progress report Sep-Nov 81  

SciTech Connect

The species composition, distribution, and population dynamics of wood-boring bivalves are being studied in the vicinity of the Oyster Creek Nuclear Generating Station, Barnegat Bay, New Jersey. Untreated wood test panels are used to collect organisms at 12 stations. Physiological tolerances of 3 species are also under investigation in the laboratory. Competition among the species is being analyzed. In the fall of 1981, Teredo bartschi remained in Oyster Creek despite continuous prolonged outages of the Oyster Creek Nuclear Generating Station.

Hoagland, K.E.; Crocket, L.

1982-06-01

116

International station meteorological climate summary CD-ROM. (Reannouncement with new availability information). Final report  

SciTech Connect

The International Station Meteorological Climate Summary (ISMCS) is a Compact Disc-Read Only Memory (CD-ROM) containing climatic records for 640 primary weather-observation sites and over 5800 secondary sites around the world. When used with a personal computer (PC) equipped with a CD-ROM drive, the ISMCS provides convenient access to the equivalent of 250,000 pages of climatic tables. The ISMCS was developed at the Federal Climate Complex in Asheville, North Carolina, as part of an ongoing effort to distribute the massive climatic database maintained there. Although the access software included on the ISMCS is written for a DOS PC, methods to access the ISMCS data files from UNIX computers are being developed.... Environmental decision aids, environmental data processing.

Jarrett, T.

1992-10-01

117

Seismic margin assessment of the Catawba Nuclear Station: Volume 1, Main report: Final report  

SciTech Connect

The Electric Power Research Institute (EPRI) has sponsored a two part program for evaluation of nuclear power plant seismic margin. The two parts consist of criteria development and criteria application. Criteria development is documented by EPRI. This report documents the application of the Seismic Margin Assessment (SMA) criteria to the Catawba Unit 2 Nuclear Station. Catawba is owned and operated by the Duke Power Company. It is a two unit, 1145 MW Westinghouse pressurized water reactor. The two units are housed in ice condenser containments and are located on Lake Wylie in South Carolina about 20 miles SW of Charlotte, NC. This study was specifically conducted for Unit 2 but is believed to be almost totally applicable to Unit 1. Unit 2 was first operational in September 1986. 55 refs., 76 figs., 31 tabs.

Campbell, R.D.; Henley, B.F.; Shoemaker, W.; Kulla, D.; Butterner, D.R.; Mclntyre, T.; Moriwaki, Y.; Idriss, I.M.

1989-04-01

118

Dual-Mode Universities in Higher Education: Way Station or Final Destination?  

ERIC Educational Resources Information Center

In the title the author asked whether dual-mode institutions were a stable "final" model for higher education or a step on the way to something else. Only a few institutions seem able to function in dual mode (i.e. with distinct groups of distance and classroom students) in a successful and sustainable way. Some institutions now claim that all…

Daniel, John

2012-01-01

119

Automatic Generation Controller for Flatiron Dispatch Center-Laramie River Power Station Remote Terminal Unit.  

National Technical Information Service (NTIS)

The operation and maintenance of the FAIC (Flatiron AGC Interim Controller) RTU's (remote terminal units) installed at Laramie River Powerplant is explained. These RTU's receive load control signals from the FAIC master station computer located at the Wes...

S. C. Stitt, G. Brown

1981-01-01

120

Environmental design guidelines for a second generation, LEO, permanently manned space station  

E-print Network

This thesis is a continuation of the thoughts and efforts of the author's participation and co-organization of the Space Station Design Workshop (SSDW). The SSDW was a student run event whose inception surfaced in the ...

Johnson, David Michael, 1960-

1987-01-01

121

75 FR 10834 - Energy Northwest; Columbia Generating Station; Environmental Assessment and Finding of No...  

Federal Register 2010, 2011, 2012, 2013

...Station; Environmental Assessment and Finding...Significant Impact The U.S...significant impact. Environmental Assessment Identification...analyzed in the environmental assessment and finding...significant impact made by...

2010-03-09

122

Long pulse homopolar generator. Final report, April 1983-June 1987  

SciTech Connect

The objective of this program was to develop a lightweight, long-pulse homopolar generator. The generator is designed to deliver 250 kW at 10kA for pulses greater than 10 seconds. This report reviews the truncated drum (rotor) design and the testing performed. The main design features, such as active excitation-coil cooling, of the generator components are reviewed.

Knoth, E.A.; Bauer, D.P.

1988-08-01

123

Geothermal energy at Long Beach Naval Shipyard and Naval Station and at Seal Beach Naval Weapons Station, California. Final Report 1  

Microsoft Academic Search

The purpose of this project was to determine and evaluate sources of geothermal energy at two military bases in southern California, the Long Beach Naval Shipyard and Naval Station and the Seal Beach Naval Weapons Station. One part of the project focused on the natural geothermal characteristics beneath the naval bases. Another part focused on the geothermal energy produced by

C. T. Higgins; R. H. Chapman

1984-01-01

124

Steam generator tube integrity program: Phase II, Final report  

Microsoft Academic Search

The Steam Generator Tube Integrity Program (SGTIP) was a three phase program conducted for the US Nuclear Regulatory Commission (NRC) by Pacific Northwest Laboratory (PNL). The first phase involved burst and collapse testing of typical steam generator tubing with machined defects. The second phase of the SGTIP continued the integrity testing work of Phase I, but tube specimens were degraded

R. J. Kurtz; R. L. Bickford; R. A. Clark; C. J. Morris; F. A. Simonen; K. R. Wheeler

1988-01-01

125

Chemical cleaning of PWR steam generator sludge piles. Final report  

Microsoft Academic Search

Tubesheet sludge piles in PWR steam generators have contributed to heat transfer tube damage through a variety of corrosion mechanisms. The subject of this report concerns the development and qualification of a generic process designed to remove these sludge piles chemically. Specifically, qualification of the EPRI\\/SGOG generic chemical cleaning process for Millstone Point II steam generators was complicated by the

M. H. Helyer; C. L. Glaves

1986-01-01

126

Remedial investigation of contaminant mobility at Naval Weapons Station, Concord, California. Final report  

SciTech Connect

A remedial investigation was conducted at Naval Weapons Station, Concord, California, to determine the nature and extent of of wetland and terrestrial environments. The evaluation considered major pathways of contaminant migration including soil, water, air and biota. Major testing was conducted on soil and the biological components of the pathways. Chemical analysis of soil samples indicated substantial elevation in arsenic, cadmium, lead, selenium, zinc and copper in certain contaminated areas. Field-conducted clam bioassays showed a moderate potential for lead, cadmium, and zinc to bioaccumulate in clams placed in surface waters of a limited number of sampling sites. Plant and earthworm bioassays indicated substantial movement of arsenic, cadmium, lead, selenium, zinc and copper into plants and soil-dwelling organisms in contaminated areas. A definite threat of these contaminants to impact wildlife, especially the endangered species that inhabit the contaminated sites, was strongly suggested by the toxicological effects of these metals on birds and mammals. A hydrological evaluation indicated substantial movement of hazardous substances into surface waters during storm events and high tides. A comprehensive evaluation of natural resources indicated that the wetland areas have moderate to high functional values for wildlife habitat, food chain support, flood storage, shoreline anchorage, sediment trapping, nutrient retention and passive recreation and heritage.

Lee, C.R.; O'Neil, L.J.; Clairain, E.J.; Brandon, D.L.; Rhett, R.G.

1986-01-01

127

Engineering evaluation of magma cooling-tower demonstration at Nevada Power Company's Sunrise Station. Final report  

SciTech Connect

The Magma Cooling Tower (MCT) process utilizes a falling film heat exchanger integrated into an induced draft cooling tower to evaporate wastewater. A hot water source such as return cooling water (90/sup 0/F to 110/sup 0/F) provides the energy for evaporation. Water quality control is maintained by removing potential scaling constituents to make concentration of the wastewater possible without scaling heat transfer surfaces. A pilot-scale demonstration test of the MCT process was performed from March 1979 through June 1979 at Nevada Power Company's Sunrise Station in Las Vegas, Nevada. The pilot unit extracted heat from the powerplant cooling system to evaporate cooling tower blowdown. Two water quality control methods were employed: makeup/sidestream softening and fluidized bed crystallization. The 11-week softening mode test was successful. The unit operated without biofouling or scaling at 100,000 ppM TDS levels under a wide range of operating conditions. Successful operation was not demonstrated in the 10-day crystallization mode test; calcium sulfate (CaSO/sub 4/) scaling occurred on the last day of the test at a maximum brine concentration of less than 40,000 ppM. An economic and technical comparison with other zero-discharge technologies showed that, for application at Sunrise, the MCT process had competitive capital, operating, and levelized annual costs. No major technical problems were encountered that would preclude the commercial application of a properly designed MCT unit operating in the softening mode.

Not Available

1980-11-01

128

The generation of simple compliance boundaries for mobile communication base station antennas using formulae for SAR estimation  

NASA Astrophysics Data System (ADS)

In this paper, a procedure is proposed for generating simple and practical compliance boundaries for mobile communication base station antennas. The procedure is based on a set of formulae for estimating the specific absorption rate (SAR) in certain directions around a class of common base station antennas. The formulae, given for both whole-body and localized SAR, require as input the frequency, the transmitted power and knowledge of antenna-related parameters such as dimensions, directivity and half-power beamwidths. With knowledge of the SAR in three key directions it is demonstrated how simple and practical compliance boundaries can be generated outside of which the exposure levels do not exceed certain limit values. The conservativeness of the proposed procedure is discussed based on results from numerical radio frequency (RF) exposure simulations with human body phantoms from the recently developed Virtual Family.

Thors, B.; Hansson, B.; Törnevik, C.

2009-07-01

129

Preliminary designs for modular OTEC platform station-keeping subsystems. Final report. MR and S Report No. 6042-6  

SciTech Connect

This volume of the report presents the results of the third through the sixth tasks of the Station Keeping Subsystem (SKSS) design studies for 10/40 MW/sub e/ capacity OTEC Modular Experiment platforms (MEP). Tasks 3 through 6 are: (3) complete preliminary designs for one SKSS for each of the two platforms (SPAR and BARGE); (4) development and testing recommendations for the MEP SKSS; (5) cost-time analysis; and (6) commercial plant recommendations. The overall conclusions and recommendations for the modular, as well as the commercial, OTEC platform station keeping subsystems are delineated. The basic design assumptions made during the process, the technical approach followed, and the results of design iterations, reliability and performance analyses are given. A complete description of the preliminary design SKSS concept is presented. The summary cost estimates for each of the alternative SKSS concepts considered are presented and a time schedule for the recommended concept is provided. The effects of varying some of the important parameters used in SKSS design on the performance and cost of the mooring system are investigated and results presented. The tests required and other developmental recommendations in order to verify and confirm the basic design assumptions are discussed. Finally, the experience gained in the MEP preliminary designs are extended to future commercial OTEC plants' SKSS designs. (WHK)

None

1980-02-29

130

Space Station Power System issues  

NASA Technical Reports Server (NTRS)

A number of attractive options are available for the Space Station Power System. These include a photovoltaic system or solar dynamic system for power generation, batteries or fuel cells for energy storage and ac or dc for power management and distribution. These options are being explored during the present preliminary design and definition phase of the Space Station Program. Final selections are presently targeted for January 1986.

Forestieri, A. F.

1985-01-01

131

Theory and economics of by-generation of electricity at city gate stations using a gas expander turbine  

Microsoft Academic Search

The transmission pressure of pipeline gas entering a city-gate station offers an untapped energy source that gas-distribution companies can easily use to produce low-cost electricity. The high-pressure inlet gas can be heated, then isentropically expanded through a turbine that powers a generator and simultaneously reduces the gas pressure and temperature. The gas turboexpander behaves like a pinwheel in the line

Bockert

1980-01-01

132

Alternative electric generation impact simulator : final summary report  

E-print Network

This report is a short summary of three related research tasks that were conducted during the project "Alternative Electric Generation Impact Simulator." The first of these tasks combines several different types of ...

Gruhl, Jim

1981-01-01

133

Low Earth orbit environmental effects on the space station photovoltaic power generation systems  

NASA Technical Reports Server (NTRS)

A summary of the Low Earth Orbital Environment, its impact on the Photovoltaic Power systems of the space station and the solutions implemented to resolve the environmental concerns or issues are described. Low Earth Orbital Environment (LEO) presents several concerns to the Photovoltaic power systems of the space station. These concerns include atomic oxygen interaction with the polymeric substrate of the solar arrays, ionized environment effects on the array operating voltage, the effects of the meteoroids and debris impacts and penetration through the different layers of the solar cells and their circuits, and the high energy particle and radiation effects on the overall solar array performance. Potential solutions to some of the degrading environmental interactions that will provide the photovoltaic power system of the space station with the desired life are also summarized.

Nahra, Henry K.

1987-01-01

134

Radiological characterization of main cooling reservoir bottom sediments at The South Texas Project Electrical Generating Station  

E-print Network

sampling station with dimensions of 325m X 325m (10. 5 ha), This allows for some error in position due to poor signal reception by the Loran-C. A total of 269 possible sampling stations were designated in the NCR. Sam le Collection The bottom sediment/benthos... monitoring programs. Information Bulletin 86-1. West Hartford, CT. Amiard, J. C. and C. Amiard-Triquet. 1979. Distribution of Co in a mollusc, a crustacean, and a freshwater teleost: Variations as a function of the source of the pollution and during...

Blankinship, David Randle

2012-06-07

135

Recommended practice for fire protection for electric generating plants and high voltage direct current converter stations. 2005 ed.  

SciTech Connect

The standard outlines fire safety recommendations for gas, oil, coal, and alternative fuel electric generating plants including high voltage direct current converter stations and combustion turbine units greater than 7500 hp used for electric generation. Provisions apply to both new and existing plants. The document provides fire prevention and fire protection recommendations for the: safety of construction and operating personnel; physical integrity of plant components; and continuity of plant operations. The 2005 edition includes revisions and new art that clarify existing provisions. 5 annexes.

NONE

2005-07-01

136

Residential solar photovoltaic systems: Final report for the Northeast Residential Experiment Station  

SciTech Connect

This report covers research and development work conducted by the MIT Energy Lab. from July 1982 through June 1986. This Energy Lab. work in the field of solar photovoltaic systems followed six years of similar work at the MIT Lincoln Lab. under the same contract with the US DOE. The final report from the Lincoln Lab. period was published by Lincoln Lab. in 1983. During the period of Energy Lab. involvement, the project focused on the refinement of residential scale, roof-mounted photovoltaic systems for application in the northeastern US. Concurrent with the conclusion of MIT`s involvement, the New England Electric Co. is building a major field test of residential photovoltaics in Gardner, Massachusetts to determine experimentally the effects of photovoltaics on electric power company operations. Using systems designs and technology developed at MIT, the long-term performance of these thirty residential systems in Gardner will provide a measure of our success.

Kern, E.C. Jr.

1986-06-01

137

Investigation of the Storage Battery Station for Effective Utilization of Electric Power Generated by PV Clusters  

Microsoft Academic Search

The voltage of the distribution line in the district where the PV systems are clustered will be raised by reversal power flow from the PVs. Then active power control of the PV systems depresses the output. So, installing storage battery stations in the clustered PV systems is one of the means to solve the problem. Therefore, we investigated proper arrangement

Shinji WAKAO; Naoki UEDA

2006-01-01

138

77 FR 22361 - Energy Northwest, Columbia Generating Station; Final Supplement 47 to the Generic Environmental...  

Federal Register 2010, 2011, 2012, 2013

...action. Other alternatives the NRC staff...combination alternative (NGCC, hydroelectric, wind, and conservation...power; (6) energy conservation...power; (9) wind power...and current energy; (13...retirement. These alternatives,...

2012-04-13

139

Evaluation of Oconee steam-generator debris. Final report  

Microsoft Academic Search

Pieces of debris were observed near damaged tubes at the 14th support plate elevation in the Oconee 1-B steam generator. A project was initiated to evaluate the physical and chemical nature of the debris, to identify its source, and to determine its role in tube damage at this elevation. Various laboratory techniques were used to characterize several debris and mill

M. A. Rigdon; M. M. Rubright; L. W. Sarver

1981-01-01

140

Risk-based evaluation of technical specification problems at the La Salle County Nuclear Station: Final report  

SciTech Connect

Probabilistic risk assessment (PRA) methods are used to evaluate alternatives to existing requirements for three operationally burdensome technical specifications at La Salle Nuclear Station. The study employs a decision logic to minimize the detailed analysis necessary to show compliance with given acceptance criteria; in this case, no risk increase resulting from a proposed change. The analyses provide insights to choose from among alternative options. The SOCRATES computer code was used for the probabilistic analysis. Results support a change to less frequent diesel generator testing, eliminations of one reactor scram setpoint, and establishing an allowed out-of-service time for valves in a reactor scram system. In each case, the change would result in a safety improvement.

Bizzak, D.J.; Trainer, J.E.; McClymont, A.S.

1987-06-01

141

Steam generator tube integrity program: Phase II, Final report  

SciTech Connect

The Steam Generator Tube Integrity Program (SGTIP) was a three phase program conducted for the US Nuclear Regulatory Commission (NRC) by Pacific Northwest Laboratory (PNL). The first phase involved burst and collapse testing of typical steam generator tubing with machined defects. The second phase of the SGTIP continued the integrity testing work of Phase I, but tube specimens were degraded by chemical means rather than machining methods. The third phase of the program used a removed-from-service steam generator as a test bed for investigating the reliability and effectiveness of in-service nondestructive eddy-current inspection methods and as a source of service degraded tubes for validating the Phase I and Phase II data on tube integrity. This report describes the results of Phase II of the SGTIP. The object of this effort included burst and collapse testing of chemically defected pressurized water reactor (PWR) steam generator tubing to validate empirical equations of remaining tube integrity developed during Phase I. Three types of defect geometries were investigated: stress corrosion cracking (SCC), uniform thinning and elliptical wastage. In addition, a review of the publicly available leak rate data for steam generator tubes with axial and circumferential SCC and a comparison with an analytical leak rate model is presented. Lastly, nondestructive eddy-current (EC) measurements to determine accuracy of defect depth sizing using conventional and alternate standards is described. To supplement the laboratory EC data and obtain an estimate of EC capability to detect and size SCC, a mini-round robin test utilizing several firms that routinely perform in-service inspections was conducted.

Kurtz, R.J.; Bickford, R.L.; Clark, R.A.; Morris, C.J.; Simonen, F.A.; Wheeler, K.R.

1988-08-01

142

Use of generator produced neutrons in coal analysis. Final report  

SciTech Connect

A 14 MeV neutron generator is satisfactory for making capture gamma-ray analysis in a borehole in rocks for a limited number of elements. In coal, a thermal-capture gamma-ray spectrum will yield data for a relatively larger number of elements. However, by the time 14 MeV neutrons are reduced to thermal energies and absorbed by the target elements the neutrons are a considerable distance from the neutron source and the detector. Consequently, the activated coal sample is dispersed and a long way from the detector, and results in a reduced sensitivity. If the neutron generator source emitted 2.5 MeV neutrons by a (D,D) reaction, the neutrons would be thermalized close to the detector. In this case, the sensitivity of the neutron activation method would be substantially enhanced. To produce a borehole generator which would produce 2.5 MeV neutrons, we started with 14 MeV generator using a tube-transformer assembly (TTA) as developed by the Sandia Corporation. A similar TTA was constructed using a deuterium rather than a tritium loaded target. The new TTA did not respond adequately with the exiting electronics. In the course of this investigation, a fast-response high-energy neutron detector using the {sup 16}O(n,p){sup 17}N reaction was developed which worked quite well and was a great help in adjusting the electronic parameters of the 14 MeV neutron generator. As the flux rate of the 2.5 MeV neutron generator was inadequate for activation analysis of coal, Cf-252 was substituted in order to obtain comparable spectra using 14 and 2.2 MeV neutrons. Using a specially constructed coal irradiation facility with a central borehole, experiments were made using neutrons of both energies and comparable fluxes. It is clear from the results that lower energy neutrons yield spectra which are more useful for coal analysis.

Thorpe, A.N. [Howard Univ., Washington, DC (United States); Senftle, F.; Mikesell, J.L. [US Geological Survey, Reston, VA (United States)

1988-12-01

143

Final Report for CORBA for Fourth Generation Language  

SciTech Connect

The standard for object based networking is the Common Object Request Broker Architecture (CORBA). However, CORBA is not available for Fourth Generation Languages (4GL's) such as Visual Numerics? PV-WAVE or Research Systems? Interactive Data Language (RSI-IDL), which are widely used by scientists and engineers for data visualization and analysis. The proposed work would provide a set of tools to allow 4GL's to interoperate with CORBA.

Svetlana Shasharina

2005-06-28

144

Goal-driven Automation of a Deep Space Communications Station: A Case Study in Knowledge Engineering for Plan Generation and Execution  

NASA Technical Reports Server (NTRS)

This paper describes the application of Artificial Intelligence techniques for plan generation, plan execution, and plan monitoring to automate a Deep Space Communication Station. This automation allows a Communication station to respond to a set of tracking goals by appropriately reconfiguring the communications hardware and software to provide the requested communications services.

Hill, R. W., Jr.; Chien, S. A.; Fayyad, K. V.; Chien, S.

1997-01-01

145

Low-level radwaste storage facility at Hope Creek and Salem Generating Stations  

Microsoft Academic Search

Following the January 1, 1993, closure of the radwaste disposal facilities at Beatty, Nevada, and Richland, Washington (to waste generators outside the compact), only Barnwell, South Carolina, is open to waste generators in most states. Barnwell is scheduled to stay open to waste generators outside the Southeast Compact until June 30, 1994. Continued delays in opening regional radwaste disposal facilities

L. C. Oyen; K. Lee; R. Bravo; B. Bovankovich

1993-01-01

146

Reaching the hip-hop generation: Final (symposium proceedings) report  

SciTech Connect

The goal of this final (closing) report is to capture the flavor of the symposium held March 1 and 2, 1993 in New York City convened by Motivational Educational Entertainment, Inc. (MEE), a black-owned communications research, consulting, and video production company based in Philadelphia, Pennsylvania. The mission of MEE is to understand, reach, and positively affect inner-city youth. Traditional communication approaches from mainstream sources to at-risk youth often don`t account for the unique way youth communicate among themselves and how they relate to the media. This understanding, however, is crucial. To understand youth communication, the people who create and send both entertaining and educational messages to urban youth must be brought into the dialogue. The meeting in New York was intended to provide an important opportunity for senders to meet and evaluate the appropriateness and effectiveness of their messages. In addition, the MEE symposium provided a forum for the continuing public debate about what needs to be done to reach today`s urban teens. Included in this document is a description of symposium goals/objectives, symposium activities, the reaction to and analysis of the symposium, recommendations for future MEE courses of action, and an appendix containing copies of press articles.

Not Available

1993-05-01

147

Final Report for "Analyzing and visualizing next generation climate data"  

SciTech Connect

The project "Analyzing and visualizing next generation climate data" adds block-structured (mosaic) grid support, parallel processing, and 2D/3D curvilinear interpolation to the open-source UV-CDAT climate data analysis tool. Block structured grid support complies to the Gridspec extension submitted to the Climate and Forecast metadata conventions. It contains two parts: aggregation of data spread over multiple mosaic tiles (M-SPEC) and aggregation of temporal data stored in different files (F-SPEC). Together, M-SPEC and F-SPEC allow users to interact with data stored in multiple files as if the data were in a single file. For computational expensive tasks, a flexible, multi-dimensional, multi-type distributed array class allows users to process data in parallel using remote memory access. Both nodal and cell based interpolation is supported; users can choose between different interpolation libraries including ESMF and LibCF depending on the their particular needs.

Pletzer, Alexander

2012-11-13

148

Coal-fired high performance power generating system. Final report  

SciTech Connect

As a result of the investigations carried out during Phase 1 of the Engineering Development of Coal-Fired High-Performance Power Generation Systems (Combustion 2000), the UTRC-led Combustion 2000 Team is recommending the development of an advanced high performance power generation system (HIPPS) whose high efficiency and minimal pollutant emissions will enable the US to use its abundant coal resources to satisfy current and future demand for electric power. The high efficiency of the power plant, which is the key to minimizing the environmental impact of coal, can only be achieved using a modern gas turbine system. Minimization of emissions can be achieved by combustor design, and advanced air pollution control devices. The commercial plant design described herein is a combined cycle using either a frame-type gas turbine or an intercooled aeroderivative with clean air as the working fluid. The air is heated by a coal-fired high temperature advanced furnace (HITAF). The best performance from the cycle is achieved by using a modern aeroderivative gas turbine, such as the intercooled FT4000. A simplified schematic is shown. In the UTRC HIPPS, the conversion efficiency for the heavy frame gas turbine version will be 47.4% (HHV) compared to the approximately 35% that is achieved in conventional coal-fired plants. This cycle is based on a gas turbine operating at turbine inlet temperatures approaching 2,500 F. Using an aeroderivative type gas turbine, efficiencies of over 49% could be realized in advanced cycle configuration (Humid Air Turbine, or HAT). Performance of these power plants is given in a table.

NONE

1995-08-31

149

Messiah College Biodiesel Fuel Generation Project Final Technical Report  

SciTech Connect

Many obvious and significant concerns arise when considering the concept of small-scale biodiesel production. Does the fuel produced meet the stringent requirements set by the commercial biodiesel industry? Is the process safe? How are small-scale producers collecting and transporting waste vegetable oil? How is waste from the biodiesel production process handled by small-scale producers? These concerns and many others were the focus of the research preformed in the Messiah College Biodiesel Fuel Generation project over the last three years. This project was a unique research program in which undergraduate engineering students at Messiah College set out to research the feasibility of small-biodiesel production for application on a campus of approximately 3000 students. This Department of Energy (DOE) funded research program developed out of almost a decade of small-scale biodiesel research and development work performed by students at Messiah College. Over the course of the last three years the research team focused on four key areas related to small-scale biodiesel production: Quality Testing and Assurance, Process and Processor Research, Process and Processor Development, and Community Education. The objectives for the Messiah College Biodiesel Fuel Generation Project included the following: 1. Preparing a laboratory facility for the development and optimization of processors and processes, ASTM quality assurance, and performance testing of biodiesel fuels. 2. Developing scalable processor and process designs suitable for ASTM certifiable small-scale biodiesel production, with the goals of cost reduction and increased quality. 3. Conduct research into biodiesel process improvement and cost optimization using various biodiesel feedstocks and production ingredients.

Zummo, Michael M; Munson, J; Derr, A; Zemple, T; Bray, S; Studer, B; Miller, J; Beckler, J; Hahn, A; Martinez, P; Herndon, B; Lee, T; Newswanger, T; Wassall, M

2012-03-30

150

Inspiring the Next Generation: Student Experiments and Educational Activities on the International Space Station, 2000-2006  

NASA Technical Reports Server (NTRS)

One important objective of NASA has always been to inspire the next generation. NASA and human space flight have a unique ability to capture the imaginations of both students and teachers. The presence of humans onboard the International Space Station (ISS) for more than five years now has provided a foundation for numerous educational activities aimed at capturing the interest and motivating study in the sciences, technology, engineering, and mathematics. Yet even before the Expedition 1 crew arrived at station in November 2000, experiments with student participation were being conducted onboard ISS in support of NASA missions. One of NASA's protein crystal growth experiments had been delivered to station by the shuttle Atlantis during STS-106 in September 2000 and was returned to Earth six weeks later aboard the shuttle Discovery during the STS-92 mission. From very early on it was recognized that students would have a strong interest in the ISS, and that this would provide a unique opportunity for them to get involved and participate in science and engineering projects on ISS. It should be noted that participation is not limited to U.S. students but involves the 16 International Partner countries and various other countries under special commercial agree

Thomas, Donald A.; Robinson, Julie A.; Tate, Judy; Thumm, Tracy

2006-01-01

151

Survival of zooplankton entrained into the cooling water system and supplemental cooling towers of a steam-electric generating station located on Galveston Bay, Texas  

E-print Network

1975 . . 116 19 Relative densities of Cirripedia nauplii col- lected from the intake and discharge canal platforms at the P. H. Robinson Generating Station during 28-29 August 1975. . 117 INTRODUCTION In the United States industrial concerns... 1975 . . 116 19 Relative densities of Cirripedia nauplii col- lected from the intake and discharge canal platforms at the P. H. Robinson Generating Station during 28-29 August 1975. . 117 INTRODUCTION In the United States industrial concerns...

Chase, Cathleen Louise

2012-06-07

152

77 FR 33004 - Exelon Generation Company, LLC; Clinton Power Station, Unit 1  

Federal Register 2010, 2011, 2012, 2013

...NUCLEAR REGULATORY COMMISSION...50-461] Exelon Generation Company, LLC...Unit 1 AGENCY: Nuclear Regulatory Commission...of Operating Reactor Licensing, Office...issued to Exelon Generation Company, LLC...Counsel, Exelon Nuclear, 4300 Winfield...of Operating Reactor Licensing,...

2012-06-04

153

75 FR 42790 - Exelon Generation Company, LLC; Clinton Power Station; Environmental Assessment and Finding of No...  

Federal Register 2010, 2011, 2012, 2013

...NRC-2010-0252] Exelon Generation Company, LLC; Clinton...Significant Impact The U.S. Nuclear Regulatory Commission...NPF-62, issued to Exelon Generation Company, LLC (the...requirements for the Exelon Nuclear Radiological Emergency...The nuclear power reactor licensee may make...

2010-07-22

154

Theory and economics of by-generation of electricity at city gate stations using a gas expander turbine  

SciTech Connect

The transmission pressure of pipeline gas entering a city-gate station offers an untapped energy source that gas-distribution companies can easily use to produce low-cost electricity. The high-pressure inlet gas can be heated, then isentropically expanded through a turbine that powers a generator and simultaneously reduces the gas pressure and temperature. The gas turboexpander behaves like a pinwheel in the line as the gas flow creates the rotary motion that drives the generator. The pressure and temperature differential that occurs across the inlet and outlet of the device can be held constant, functioning similarly to a standard regulator. The gas exiting the turbine is thus available at entry conditions for the gas-distribution system, while the electricity can be either used onsite or (in the case of a combination utility) fed into the network for electrical baseloading.

Bockert, B.J.

1980-01-01

155

Water-related constraints to the development of geothermal electric generating stations  

SciTech Connect

The water-related constraints, which may be among the most complex and variable of the issues facing commercialization of geothermal energy, are discussed under three headings: (1) water requirements of geothermal power stations, (2) resource characteristics of the most promising hydrothermal areas and regional and local water supply situations, and (3) legal issues confronting potential users of water at geothermal power plants in the states in which the resource areas are located. A total of 25 geothermal resource areas in California, New Mexico, Oregon, Idaho, Utah, Hawaii, and Alaska were studied. Each had a hydrothermal resource temperature in excess of 150/sup 0/C (300/sup 0/F) and an estimated 30-year potential of greater than 100-MW(e) capacity.

Robertson, R.C.; Shepherd, A.D.; Rosemarin, C.S.; Mayfield, M.W.

1981-06-01

156

D.McNew/GettyIMaGes San Onofre Nuclear Generating Station, California.  

E-print Network

be supplied by solar power plants covering about 36,000 square kilometres of land in the desert southwest reform allow Europe to finally rival the US market? p.395 T he costs of nuclear power, from the cash-to-zero carbon dioxide emissions. The current total power requirements of the United States could theoretically

157

Aging of nuclear station diesel generators: Evaluation of operating and expert experience: Phase 1, Study  

SciTech Connect

Pacific Northwest Laboratory evaluated operational and expert experience pertaining to the aging degradation of diesel generators in nuclear service. The research, sponsored by the US Nuclear Regulatory Commission (NRC), identified and characterized the contribution of aging to emergency diesel generator failures. This report, Volume I, reviews diesel-generator experience to identify the systems and components most subject to aging degradation and isolates the major causes of failure that may affect future operational readiness. Evaluations show that as plants age, the percent of aging-related failures increases and failure modes change. A compilation is presented of recommended corrective actions for the failures identified. This study also includes a review of current, relevant industry programs, research, and standards. Volume II reports the results of an industry-wide workshop held on May 28 and 29, 1986 to discuss the technical issues associated with aging of nuclear service emergency diesel generators.

Hoopingarner, K.R.; Vause, J.W.; Dingee, D.A.; Nesbitt, J.F.

1987-08-01

158

76 FR 54502 - Energy Northwest, Columbia Generating Station; Notice of Availability of Draft Supplement 47 to...  

Federal Register 2010, 2011, 2012, 2013

...50-397; NRC-2010-0029] Energy Northwest, Columbia Generating...Richland, Washington. Possible alternatives to the proposed action (license...include no action and reasonable alternative energy sources. Any interested party may...

2011-09-01

159

Secondary-side chemical cleaning of Oconee nuclear station steam generators  

Microsoft Academic Search

From as early as 1977, the Oconee Unit 1 once-through steam generators (OTSGs) have experienced tube defects traceable to the presence of magnetite (FeâOâ) debris lying primarily on the tube support plates. Likewise, the Oconee Unit 2 steam generators began to experience an increase in pressure drop in 1982, also attributable to secondary-side magnetite deposits. The chemical cleaning system serves

1986-01-01

160

Geothermal energy at Long Beach Naval Shipyard and Naval Station and at Seal Beach Naval Weapons Station, California. Final Report 1  

SciTech Connect

The purpose of this project was to determine and evaluate sources of geothermal energy at two military bases in southern California, the Long Beach Naval Shipyard and Naval Station and the Seal Beach Naval Weapons Station. One part of the project focused on the natural geothermal characteristics beneath the naval bases. Another part focused on the geothermal energy produced by oilfield operations on and adjacent to each base. Results of the study are presented here for the US Department of the Navy to use in its program to reduce its reliance on petroleum by the development of different sources of energy. The project required research of various reports and data, both published and unpublished, particularly those of the California Department of Conservation, Division of Oil and Gas and of oil companies with leases on or adjacent to the naval bases. Important field investigations included the measurement of well-head temperatures of fluids produced from selected oil wells at each naval base and a detailed gravity survey of the Seal Beach naval base and vicinity. The well-head temperatures were needed to evaluate individual wells as sources of geothermal energy, while the gravity survey attempted to discover subsurface geologic structures that might contain geothermal fluids of temperatures higher than those predicted by the regional geothermal conditions.

Higgins, C.T.; Chapman, R.H.

1984-01-01

161

Equating minimalist snowmelt and runoff generation models via validation with a wireless weather station network  

NASA Astrophysics Data System (ADS)

A wireless network of 12 weather stations in the Val Ferret watershed (approximately 21 km2) in the Swiss Alps was used to validate snowmelt models with distributed temperature and radiation data. Using this extensive dataset, an improved yet simplistic degree-day method was compared with a radiation-based method proposed by Hock et al., 1999. The original degree-day approach is a widely used snowmelt model, relating snowmelt directly to air temperature. Numerous hydrological models use this minimalist approach due to its equivalent simplicity. Modifications of this simple method have been proposed in the past which typically incorporate local radiation conditions. However, these modifications generally require more data and/or a finer hydrological grid resolution. Results herein as well as theoretical considerations illustrate that the Hock point or grid-scale method is not always a robust method when combined with spatially explicit rainfall-runoff transformation models. This generalized hydrological application suggests that a simple diurnal cycle of the degree-day melt parameter has the potential to outperform the Hock local radiation-based approach for sub-daily melt simulations. We therefore suggest that the improved degree-day method enables a flexible melt modeling approach, which can be easily adapted into spatially-explicit hydrological models of varying complexity. Furthermore, as this new degree-day method is based upon solely daily temperature extremes, this approach is capable of being adapted for climate change predictions.

Tobin, C. C.; Schaefli, B.; Nicotina, L.; Simoni, S.; Barrenetxea, G.; Parlange, M. B.; Rinaldo, A.

2011-12-01

162

Space Station Power Generation in Support of the Beta Gimbal Anomaly Resolution  

NASA Technical Reports Server (NTRS)

The International Space Station (ISS) is the largest and most complex spacecraft ever assembled and operated in orbit. The first U.S. photovoltaic (PV) module, containing two solar arrays, was launched, installed, and activated in early December 2000. After the first week of continuously rotating the U.S. solar arrays, engineering personnel in the ISS Mission Evaluation Room (MER) observed higher than expected electrical currents on the drive motor in one of the Beta Gimbal Assemblies (BGA), the mechanism used to maneuver a U.S. solar array. The magnitude of the motor currents continued to increase over time on both BGA's, creating concerns about the ability of the gimbals to continue pointing the solar arrays towards the sun, a function critical for continued assembly of the ISS. A number of engineering disciplines convened in May 2001 to address this on-orbit hardware anomaly. This paper reviews the ISS electrical power system (EPS) analyses performed to develop viable operational workarounds that would minimize BGA use while maintaining sufficient solar array power to continue assembly of the ISS. Additionally, EPS analyses performed in support of on-orbit BGA troubleshooting exercises is reviewed. EPS capability analyses were performed using SPACE, a computer code developed by NASA Glenn Research Center (GRC) for the ISS program office.

Delleur, Ann M.; Propp, Timothy W.

2003-01-01

163

Evaluation of Electrochemically Generated Potable Water Disinfectants for Use on the International Space Station  

NASA Technical Reports Server (NTRS)

Microbial contamination and subsequent growth in spacecraft water systems are constant concerns for missions involving human crews. The current potable water disinfectant is iodine; however, with the end of the Space Shuttle program, there is a need to develop redundant biocide systems which are less dependent on hardware that would need to be launched on a regular basis. Three systems for electrochemical production of potable water disinfectants are being assessed for use on the International Space Station (ISS). Since there is a wide variability in the literature with regards to efficacy in both concentration and exposure time of these disinfectants, there is a need to establish baseline efficacy values. This paper describes a series of tests performed in order to establish optimal concentrations and exposure times for four disinfectants against single and mixed species planktonic and biofilm bacteria and to determine whether these electrochemical disinfection devices are able to produce a sufficient amount of chemical in both concentration and volume to act as a biocide for potable water on ISS.

Vega, Leticia; Aber, Gregory; Adam, Niklas; Clements, Anna; Modica, Catherine; Younker, Diane

2011-01-01

164

Evaluation of Electrochemically Generated Potable Water Disinfectants for Use on the International Space Station  

NASA Technical Reports Server (NTRS)

Microbial contamination and subsequent growth in spacecraft water systems are constant concerns for missions involving human crews. The current potable water disinfectant for the International Space Station (ISS) is iodine; however, with the end of the Space Shuttle program, there is a need to develop redundant biocide systems that do not require regular up ]mass dependencies. Throughout the course of a year, four different electrochemical systems were investigated as a possible biocide for potable water on the ISS. Research has indicated that there is a wide variability with regards to efficacy in both concentration and exposure time of these disinfectants, therefore baseline efficacy values were established. This paper describes a series of tests performed in order to establish optimal concentrations and exposure times for four disinfectants against single and mixed species planktonic and biofilm bacteria. Results of the testing determined whether these electrochemical disinfection systems are able to produce a sufficient amount of chemical in both concentration and volume to act as a biocide for potable water on ISS.

Rodriquez, Branelle; Anderson, Molly; Anderson, Molly; Adam, Niklas; Vega, Leticia; Modica, Catherine; Bodkin, Douglas

2012-01-01

165

Ginna Station steam generator U-bend tube analysis for chemical cleaning data  

Microsoft Academic Search

This report discusses a potential cause of the decrease in steam pressure affecting many nuclear plant recirculating steam generators which is the buildup of deposit on the outside surfaces of the tubing. This deposit layer, if thick enough, acts to insulate'' the tube, resulting in decreased heat transfer from the reactor coolant to the secondary fluid. At some point in

P. A. Sherburne; K. R. Redmond; J. M. Jevec; T. F. Habib

1992-01-01

166

Circulating water traveling screen modifications to improve impinged fish survival and debris handling at Salem Generating Station  

SciTech Connect

This paper summarizes modifications made to the Salem Generating Station`s (Salem) Circulating Water Traveling Screens (CWTS) as required by Salem`s New Jersey Pollutant Discharge Elimination System Permit (NJPDES Permit). The modifications incorporated newly designed CWTS baskets with hydrodynamically improved fish buckets (greatly reduced turbulence in the bucket); smooth woven mesh screens with 0.250 x 0.500 inch rectangular mesh openings (formerly 0.375 inch square mesh openings); lighter composite basket frame material allowing increased screen rotation speed; improved low and high pressure spray wash patterns; improved screen to sluice trough flap seal design and miscellaneous reliability improvements. In order to address the overall effects of the CWTS modifications on fish losses, the effect of both entrainment and impingement by fish size was addressed in a comparison study between modified and unmodified units. The results of the assessment indicate a 51% reduction in overall weakfish (Cynoscion regales) losses (expressed as equivalent adults, larger than 187 mm total length individuals). These modifications also enhanced debris removal capability of the CWTSs. 5 refs., 5 figs.

Ronafalvy, J.P.; Cheesman, R.R.; Matejek, W.M.

1996-08-01

167

Application of reliability-centered maintenance to the auxiliary feedwater system at San Onofre Nuclear Generating Station  

SciTech Connect

Reliability-centered maintenance (RCM) is a systematic methodology for defining applicable and effective preventive maintenance (PM) tasks. In 1984, the Electric Power Research Institute (EPRI) studied the air transport industry's RCM program as a candidate for technology transfer to the nuclear power industry. EPRI initiated two RCM pilot projects that directly utilized the RCM methodology developed by the aviation industry. The first RCM application was to the component cooling water systems of Florida Power and Light's Turkey Point Units 3 and 4. The second application was to the main feedwater system at Duke Power's McGuire Station. The results of these studies clearly indicate the benefits of the system-oriented RCM approach, and many areas for cost-effective improvements to PM programs were identified. After the completion of these two pilot studies, Southern California Edison and EPRI initiated an application of RCM to the auxiliary feedwater (AFW) system at the San Onofre Nuclear Generating Station, Unit 2. In contrast to the previous EPRI-sponsored applications to normally operating systems, the AFW system is a standby safety system. The study results demonstrate the usefulness of extending the RCM methodology to standby safety systems. The specific results show promise of reducing the PM costs for the AFW system at San Onofre while maintaining highly reliable system performance. The recommendations from this study are currently being considered for implementation by the plant maintenance staff.

Gaertner, J.P.; Morgan, T.A.; Rodin, M.E.

1987-01-01

168

Ecological studies of wood-boring bivalves in the vicinity of the Oyster Creek Nuclear Generating Station. Progress report, December 1981-February 1982  

SciTech Connect

The species composition, distribution, and population dynamics of wood-boring bivalves are being studied in the vicinity of the Oyster Creek Nuclear Generating Station, Barnegat Bay, New Jersey. Untreated wood test panels are used to collect organisms at 12 stations. Physiological tolerances of 3 species are also under investigation in the laboratory. Competition among the species is being analyzed. In the winter of 1981, the generating station experienced a prolonged outage. The reproductive cycle of the shipworms was not extended. Teredo bartschi was very abundant at one station in Oyster Creek and moderately abundant at a second, but did not exist elsewhere in Barnegat Bay. Some specimens of Teredo bartschi contained larvae in the gills in February. According to laboratory experiments, Teredo navalis is able to remain active at temperatures as low as 4/sup 0/C, whereas T. bartschi ceases activity (withdraws its siphons) at about 13/sup 0/C. 12 tables.

Hoagland, K.E.; Crocket, L.

1982-08-01

169

Ecological studies of wood-boring bivalves in the vicinity of the Oyster Creek Nuclear Generating Station. Progress report, March-May 1982  

SciTech Connect

The species composition, distribution, and population dynamics of wood-boring bivalves are being studied in the vicinity of the Oyster Creek Nuclear Generating Station, Barnegat Bay, New Jersey. Untreated wood test panels are used to collect organisms at 12 stations. Physiological tolerances of 3 species are also under investigation in the laboratory. Competition among the species is being analyzed. The adult population of Teredo bartschi survived the winter and spring of 1981-1982 better than it did previous cold periods without a thermal effluent. Lack of an effluent was due to a prolonged outage of the generating station. There was no spring outbreak of shipworms. The introduced species appears established at one station near but outside of Oyster Creek. Three teredinid species coexist in Oyster Creek. Larvae of T. bartschi and T. navalis have similar responses to reduced salinity. Bankia gouldi is the fastest-growing of the teredinids found in New Jersey, and as the lowest annual mortality.

Hoagland, K.E.

1982-11-01

170

Investigation into the High Voltage Shutdown of the Oxygen Generator System in the International Space Station  

NASA Technical Reports Server (NTRS)

The Oxygen Generation System (OGS) Hydrogen Dome Assembly Orbital Replacement Unit (ORU) serial number 00001 suffered a cell stack high-voltage shutdown on July 5, 2010. The Hydrogen Dome Assembly ORU was removed and replaced with the on-board spare ORU serial number 00002 to maintain OGS operation. The Hydrogen Dome Assembly ORU was returned from ISS on STS-133/ULF-5 in March 2011 with test, teardown and evaluation (TT&E) and failure analysis to follow.

Carpenter, Joyce E.; Gentry, Gregory J.; Diderich, Greg S.; Roy, Robert J.; Golden, John L.; VanKeuren, Steve; Steele, John W.; Rector, Tony J.; Varsik, Jerome D.; Montefusco, Daniel J.; Wilson, Mark E.; Worthy, Erica S.

2012-01-01

171

The effects of a by-pass canal upon the marine animals occurring in the cooling canal system of the P. H. Robinson Generating Station  

E-print Network

in 1971 51 16 Abundance of Paiaeinonetes or~?io ar. d P, ~ruioarts at seine stations IS and DS in relation to average temperatures in the discharge canal in 1971 INTRO DU CTI ON The thermo-electric generating industry in this country is faced with a... GALVESTON GAV OS STUPY AREA BP PH. ROBINSON G E NE R AT I N G STATION IS DiCKINSON BAYOU FIQTJRE I. --Map of study area showing trawl stations 4 and 5 (intake canal) 6 and 7 (discnarge canal) and BP (by-pass canal), and seine st tions IS (in ake...

French, Johnny Duane

2012-06-07

172

Distribution, relative abundance and species composition of shrimp, crabs and fish in the intake area, discharge canal and cooling lake of the Cedar Bayou generating station, Baytown, Texas  

E-print Network

DISTRIBUTION, RELATIVE ABUNDANCE AND SPECIES COMPOSITION OF SHRIMP, CRABS AND FISH IN THE INTAKE AREA, DISCHARGE CANAL AND COOLING LAKE OF THE CEDAR BAYOU GENERATING STATION, BAYTOWN, TEXAS. A Thesis by LOU ANN ST. CLAIR Submitted..., CRABS AND FISH IN THE INTAKE AREA, DISCHARGE CANAL AND COOLING LAKE OF THE CEDAR BAYOU GENERATlNG STATION, BAYTOWN, TEXAS A Thesis by LOU ANN ST. CLAIR Approved as to style and content by: (Chairman of Committee) (Head of Department) (Member...

St. Clair, Lou Ann

2012-06-07

173

Growth and mortality of the oyster, Crassostrea virginica (Gmelin) in an electric generating station cooling lake receiving heated discharge water  

E-print Network

of the cont rol. s at t. hc I nta!ce canal (st tion 5) . Perccr!t. c!range o. rrc-. ar. ai' vreiohts (PCI4W) at strtions 1-5 dnr)!tg Ieriod 2 werc: 11. 1, 8. 9, 8. 3, 14. 5 and 6. 9%& respective3y. Durir!cPe=iod B !sean ai v. eicrht. increases amo!g cooling... ~Pa e M y 16, 3973 and April 17, 1974 90 28 Annual rainfall at Anahuac, Texas curing the period 1933-1973 95 LIST OF FIGURHS Page Nap of upper Galveston Bay including Morgan Point, Cedar Bayou Generating Station, discharge canal and cooling...

Oja, Robert Kenneth

2012-06-07

174

Electric motors using superconducting materials applied to power generating station equipment  

SciTech Connect

The application of high temperature superconductors (HTSC) to electric motors is discussed. A synchronous motor with an HTSC field winding is described, and its steady state performance and economic viability is summarized. Large HTSC synchronous motors are predicted to be one-half the size and have one-half the losses of comparably-rated conventional motors. Test rig and prototype motors used for developing design techniques for air core superconducting synchronous motors are described, and test results are discussed. HTSC coil testing techniques and results are discussed. These test results indicate that HTSC wire performance is rapidly improving toward the required performance for large HTSC motors. Finally, a design and analysis study of a 5000-horsepower motor is summarized. overall, this report describes an ongoing comprehensive superconducting motor research program that is using state-of-the-art HTSC coils to build prototype motors and developing designs for future large HTSC motors.

Jordan, H.E.; Edick, J.D.; Schiferl, R.F. (Reliance Electric Co., Cleveland, OH (United States))

1992-09-01

175

Summary of Chariton Valley Switchgrass Co-Fire Testing at the Ottumwa Generating Station in Chillicothe, Iowa: Milestone Completion Report  

SciTech Connect

Results of the switchgrass co-firing tests conducted at the Ottumwa Generating Station in Chillicothe, Iowa as part of the Chariton Valley Biomass Project. After several years of planning, the Chariton Valley Biomass Project successfully completed two months of switchgrass co-fire testing at the Ottumwa Generating Station (OGS) in Chillicothe, Iowa. From November 30, 2000, through January 25, 2001, the switchgrass team co-fired 1,269 tons (1,151 tonnes) of switchgrass at rates up to 16.8 tons/h (15.2 tonne/h), representing about 3% heat input to the 725-MW power plant. Stack testing was completed when co-firing switchgrass and when burning only coal. Fuel and ash samples were collected for analysis, and boiler performance and emissions data were collected. Numerous improvements were made to the feed-handling equipment during testing. The co-fire testing was completed with no environmental incidents, no injuries to personnel, and no loss in electricity output from OGS. The goals of the this--the first of three rounds of co-fire tests--were: to identify the effects of co-firing on boiler performance, to measure any changes in emissions during co-firing, and to gather information to improve the design of the switchgrass handling equipment. All three of these goals were met. The design target for the switchgrass handling system was 12.5 ton/h (11.3 tonne/h), which we exceeded after a redesign of the secondary grinder in our system. We had hoped to burn over 3,000 tons (2,722 tonnes) of switchgrass during this first round of testing, but because of poor equipment performance in December, we were unable to meet this target before the planned boiler shutdown in January. There were, however, several days in January when we burned more than 100 tons (91 tonnes) of switchgrass.

Amos, W.

2002-07-01

176

Environmental radiological studies downstream from the Rancho Seco Nuclear Power Generating Station, 1985  

SciTech Connect

Information compiled in 1985 while assessing the environmental impact of radionuclides previously discharged with aqueous releases from the Rancho Seco Nuclear Power Generating Plant is presented. In October 1984, the quantities of gamma-emitting radionuclides in water discharged to Clay Creek from the plant were reduced below operationally defined detection limits for liquid effluents. However, radionuclides previously discharged persist in the downstream environment and are found in many aquatic dietary components. /sup 134/Cs and /sup 137/Cs are the primary gamma-emitting radionuclides detected in the edible flesh of different fish, crayfish, and frogs. Coefficients for exponential equations are generated, from a least square analysis, that relate the change in concentration of /sup 137/Cs in fish to distance downstream and time between March and October 1985. Concentrations of /sup 137/Cs in surface creek sediments also decreased in the downstream direction much in the same manner as concentrations decreased in fish. However, there was no significant difference in the radiocesium concentrations in surface sediements collected from comparable locations during both 1984 and 1985.

Noshkin, V.E.; Wong, K.M.; Eagle, R.J.; Brunk, J.L.; Jokela, T.A.

1986-02-06

177

Final Report for snf Project no. 9502830 Networks and Paradigms for the Next Generation of Distributed  

E-print Network

Final Report for snf Project no. 9502830 Networks and Paradigms for the Next Generation and aau October 16, 1998 Overall Project Summary The snf funded framework grant ``Networks and Paradigms December 31st 1998. During this pe­ riod two snf workshops and three workshops at international conferences

Nielsen, Brian

178

Woody biomass-based bioenergy development at the Atikokan Power Generating Station: Local perceptions and public opinions  

NASA Astrophysics Data System (ADS)

To tackle climate change, reduce air pollution and promote development of renewable energy, the Ontario government is investing in the conversion of the coal-based Atikokan Power Generating Station (APGS) in Atikokan, Ontario, to woody biomass feedstock. This research offers one of the first looks at the perspectives of different individuals and groups on converting woody biomass to energy. Using a combination of study instruments which include literature review, surveys, interviews with key informants, semi-structured interviews, and focus group discussions, this dissertation uses qualitative research to provide a picture of the public's opinions and attitudes towards the APGS biomass energy development. Given Ontario's huge and sustainably managed forest resource, woody biomass is expected to be a major component of renewable energy production in Ontario. The move towards renewable energy that replaces fossil fuels with woody biomass will have considerable socio-economic implications for local and First Nation communities living in and around the bioenergy power generating station. Findings indicate that there is wide support for biomass utilization at the APGS by local people, especially since the project would create sustainable employment. The connection of woody biomass-based energy generation and rural community development provides opportunities and challenges for Atikokan's economic development. Respondents identified economic, environmental and social barriers to biomass utilization, and emphasized trust and transparency as key elements in the successful implementation of the APGS project. As demand for woody biomass-based energy increases, special attention will be needed to ensure and maintain the social, economic and environmental sustainability of biomass use at the APGS. In this research, respondents' views about biomass utilization for energy mainly focused on forest-related issues rather than energy. In Atikokan much of the project's social acceptability is directly linked to woody biomass providing job creation and community stability. Given this, it will be important to design policies and projects from a community development perspective to ensure long term community support. Information provided by this research creates a base for discussions as forest biomass energy becomes a vital issue in Northwestern Ontario, Canada, and other regions of the world. This research provides a look at a community's views using a method that provides breadth of information but that is specific in scope. Further research will be required to determine the reach of these opinions within the stakeholder groups, the general public, and across different regions.

Baten, Cassia Sanzida

179

Spaceflight effects on consecutive generations of peas grown onboard the Russian segment of the International Space Station  

NASA Astrophysics Data System (ADS)

In the period from March 2003 to April 2005 we fulfilled five experimental cultivations of genetically marked dwarf pea species in greenhouse Lada installed in the Russian segment (RS) of the International Space Station (ISS). The purpose of this series of experiments was to make morphologic and genetic analysis of pea plants grown in successive generations. According to our results, pea growth and development over the full cycle of ontogenesis (from seed to seed) taking place in space greenhouse Lada were not different as compared with the ground control plants. In addition, four successive pea crops gathered in space flight did not loose their reproductive functions and formed viable seeds. Genetic analysis of the plants grown from the "space" and "ground" seeds produced by the first to fourth successive crops was performed using the methods of chromosomal aberrations count and Random Amplified Polymorphic DNA (molecular method). No genetic polymorphism was found either in the experimental or control crops. This can serve as a sound argument for the supposition that the genetic apparatus of plants is not impacted by exposure of several successive generations to the conditions of space flight.

Sychev, Vladimir N.; Levinskikh, Margarita A.; Gostimsky, Sergey A.; Bingham, Gail E.; Podolsky, Igor G.

2007-02-01

180

Evaluation of station blackout accidents at nuclear power plants: Technical findings related to unresolved safety issue A-44: Final report  

SciTech Connect

''Station Blackout,'' which is the complete loss of alternating current (AC) electrical power in a nuclear power plant, has been designated as Unresolved Safety Issue A-44. Because many safety systems required for reactor core decay heat removal and containment heat removal depend on AC power, the consequences of a station blackout could be severe. This report documents the findings of technical studies performed as part of the program to resolve this issue. The important factors analyzed include: the fequency of loss of offsite power; the probability that emergency or onsite AC power supplies would be unavailable; the capability and reliability of decay heat removal systems independent of AC power; and the likelihood that offsite power would be restored before systems that cannot operate for extended periods without AC power fail, thus resulting in core damage. This report also addresses effects of different designs, locations, and operational features on the estimated frequency of core damage resulting from station blackout events.

Not Available

1988-06-01

181

Instructor/Operator Station Design Handbook for Aircrew Training Devices. Final Technical Report for Period March 1982-December 1986.  

ERIC Educational Resources Information Center

Human engineering guidelines for the design of instructor/operator stations (IOSs) for aircrew training devices are provided in this handbook. These guidelines specify the preferred configuration of IOS equipment across the range of the anticipated user sizes and performance capabilities. The guidelines are consolidated from various human…

Warner, H. D.

182

Ecological studies of wood-boring bivalves in the vicinity of the Oyster Creek Nuclear Generating Station. Interim report 1 Sep 79-28 Feb 80  

SciTech Connect

The species composition, distribution, and population dynamics of wood-boring bivalves are being studied in the vicinity of the Oyster Creek Nuclear Generating Station, Barnegat Bay, New Jersey. Untreated wood test panels are used to collect organisms at 12 stations. Physiological tolerances of 3 species are also under investigation in the laboratory. Relative destructiveness and competition among the species are being analyzed. Teredo bartschi caused almost complete destruction of panels in Oyster Creek during the summer of 1979. Reproduction and settlement of this species continued into October. The native species Teredo navalis and Bankia gouldi coexist with T. bartschi in Oyster Creek. The greatest shipworm damage is in Oyster Creek. Heavy mortality occurs in all species during winter, especially in winters such as 1979-80 when the generating station is not operating. Adults of all three species can survive for at least 30 days at salinities from 5 to 45 parts per thousand by weight. They can withstand abrupt salinity changes.

Hoagland, K.E.; Crocket, L.; Turner, R.D.

1980-11-01

183

Ecological studies of wood-boring bivalves in the vicinity of the Oyster Creek Nuclear Generating Station. Progress report, 1 March-31 May 1980  

SciTech Connect

The species composition, distribution, and population dynamics of wood-boring bivalves are being studied in the vicinity of the Oyster Creek Nuclear Generating Station, Barnegat Bay, New Jersey. Untreated wood test panels are used to collect organisms at 12 stations. Physiological tolerances of 3 species are also under investigation in the laboratory. The native species Teredo navalis and Bankia gouldi coexist with the introduced T. bartschi in Oyster Creek, at the mouth of Forked River and on the coast of the bay between the two creeks. Heavy mortality occurred in all species during winter and spring when the generating station was not operating. Temperature and salinity tolerance tests begun during April and May, 1980, were not completed by the end of May because the adult shipworms proved to be very resistant to drastic changes in these physical parameters.

Hoagland, K.E.; Crocket, L.

1980-12-01

184

Proposal for all-optical generation of multiple-frequency millimeter-wave signals for RoF system with multiple base stations using FWM in SOA  

NASA Astrophysics Data System (ADS)

An approach for the multiple-frequency millimeter-wave (mm-wave) signals generation is proposed and demonstrated, specifically, which can be applied to a radio-over-fiber (RoF) system with multiple base stations (BSs). In this scheme, optical double sideband (ODSB) modulation is achieved using a Mach-Zehnder modulator (MZM) to generate the two-sideband signals. New frequencies of the optical signals are obtained by using four-wave mixing (FWM) in a semiconductor optical amplifier (SOA). At the BSs, two different frequencies are achieved using a comb optical filter (COF), and which then input a photodiode (PD) to generate the mm-wave signals with the frequencies of 20, 40 or 60 GHz for different BSs, by mixing of these frequencies components. Experimental results verify that the proposed multiple-frequency mm-wave signals generation scheme for a RoF system with multiple base stations can work properly.

Zhang, Chongfu; Wang, Leyang; Qiu, Kun

2011-07-01

185

Dissolved gas supersaturation associated with the thermal effluent of an electric generating station and some effects on fishes  

E-print Network

at station 11, Fairfield Reservoir, determined f rom measurements at se I ected depths 29 Seasonal variation of hydrogen ion concentra- tion (pH) at the surface in the intake and discharge canals, Big Brown Steam Electric Station, determined from samples... variation of hydrogen ion concentration (pH) at the surface in the intake and discharge canals, Big Brown Steam Electric Station, determined from samples at stations I and 2, respect i ve I y. TABLE 2. ? Percent saturation values of dissolved from 28...

Ciesluk, Alexander Frank

2012-06-07

186

Use of a combined personal computer and Rock-Eval in an integrated petroleum evaluation work station to estimate volumes of hydrocarbons generated and migrated in sedimentary basins  

SciTech Connect

A petroleum evaluation work station consisting in a modified Rock-Eval apparatus connected to an IBM personal computer has been designed at Institut Francais du petrole to estimate the amount of hydrocarbon generated and migrated in sedimentary basins. The work-station is provided with specific software for Rock-Eval data analysis, quick determination of kinetic parameters (Optim model), and quantitative hydrocarbon generation (Matoil model). Along with the classical Rock-Eval parameters (S{sub 0}, S{sub 1}, S{sub 2}, TOC, and T{sub max}), new parameters concerning the source rocks, such as the transformation efficiency ratio (TER), the migration efficiency ration (MER), and the initial generation capacity (IGC), are defined. These new parameters combined with geological data give access to a rapid volumetric estimation (in 10{sup 6}MT/km{sup 2}) of hydrocarbon generation and migration in the studied area. These data can be displayed on different specific maps for rapid visualization. This work station has been successfully used in the Paris and Aquitaine basins, making possible a better assessment of their petroleum potential. The petroleum evaluation work station appears to be a very valuable tool that can be used in the different phases of exploration in a sedimentary basin.

Espitalie, J.; Lafargue, E.; Drouet, S. (Institut Francais du Petrole, Rueil-Malmaison)

1989-09-01

187

Hazard analysis of compressed natural gas fueling systems and fueling procedures used at retail gasoline service stations. Final report  

SciTech Connect

An evaluation of the hazards associated with operations of a typical compressed natural gas (CNG) fueling station is presented. The evaluation includes identification of a typical CNG fueling system; a comparison of the typical system with ANSI/NFPA (American National Standards Institute/National Fire Protection Association) Standard 52, Compressed Natural Gas (CNG) Vehicular Fuel System, requirements; a review of CNG industry safety experience as identified in current literature; hazard identification of potential internal (CNG system-specific causes) and external (interface of co-located causes) events leading to potential accidents; and an analysis of potential accident scenarios as determined from the hazard evaluation. The study considers CNG dispensing equipment and associated equipment, including the compressor station, storate vessels, and fill pressure sensing system.

NONE

1995-04-28

188

Test-Case Generation using an Explicit State Model Checker Final Report  

NASA Technical Reports Server (NTRS)

In the project 'Test-Case Generation using an Explicit State Model Checker' we have extended an existing tools infrastructure for formal modeling to export Java code so that we can use the NASA Ames tool Java Pathfinder (JPF) for test case generation. We have completed a translator from our source language RSML(exp -e) to Java and conducted initial studies of how JPF can be used as a testing tool. In this final report, we provide a detailed description of the translation approach as implemented in our tools.

Heimdahl, Mats P. E.; Gao, Jimin

2003-01-01

189

Application of MACH2 to explosive magnetic flux compression generators: Improvements in detonation modeling. Final report  

SciTech Connect

Dramatic improvements have been made to the detonation modeling capability recently incorporated into MACH2. These improvements significantly improve the flexibility of the detonation model, allow for accurate depiction of real explosives, and permit highly efficient modeling of long, coaxial generators. In this document, we will first describe these improvements in some detail. We will then discuss the calibration of the detonation model to two explosive materials, PBX9501 and PBXN110. Finally, we will demonstrate the code`s capability for modeling long, coaxial magnetocumulative generators.

Watrous, J.J.; Frese, M.H. [NumerEx Corp., Albuquerque, NM (United States)

1994-04-27

190

Ecological studies of wood-boring bivalves in the vicinity of the Oyster Creek Nuclear Generating Station. Progress report 1 Jun-31 Aug 80  

SciTech Connect

The species composition, distribution, and population dynamics of wood-boring bivalves are being studied in the vicinity of the Oyster Creek Nuclear Generating Station, Barnegat Bay, New Jersey. Untreated wood test panels are used to collect organisms at 12 stations. Physiological tolerances of 3 species are also under investigation in the laboratory. Relative destructiveness and competition among the species are being analyzed. The native species Teredo navalis and Bankia gouldi coexist with the introduced T. bartschi in Oyster Creek. Teredo bartschi can withstand higher temperatures than the native species, but all species suffer osmotic stress at 6 parts per thousand by weight.

Hoagland, K.E.; Crocket, L.

1981-02-01

191

Ecological studies of wood-boring bivalves in the vicinity of the Oyster Creek Nuclear Generating Station. Quarterly progress report 1 Dec 80-28 Feb 81  

SciTech Connect

The species composition, distribution, and population dynamics of wood-boring bivalves are being studied in the vicinity of the Oyster Creek Nuclear Generating Station, Barnegat Bay, New Jersey. Untreated wood test panels are used to collect organisms at 12 stations. Physiological tolerances of 3 species are also under investigation in the laboratory. Relative destructiveness and competition among the species are being analyzed. The native species Teredo navalis and Bankia gouldi coexist with the introduced T. bartschi in Oyster Creek and at the mouth of Forked River. An increase in mortality occurred in January. By February, Teredo bartschi was found only at Bayside.

Hoagland, K.E.; Crocket, L.

1981-08-01

192

Ecological studies of wood-boring bivalves in the vicinity of the Oyster Creek Nuclear Generating Station. Quarterly report, 1 September-30 November 1980  

SciTech Connect

The species composition, distribution, and population dynamics of wood-boring bivalves are being studied in the vicinity of the Oyster Creek Nuclear Generating Station, Barnegat Bay, New Jersey. Untreated wood test panels are used to collect organisms at 12 stations. Physiological tolerances of 3 species are also under investigation in the laboratory. Relative destructiveness and competition among the species are being analyzed. The native species Teredo navalis and Bankia gouldi coexist with the introduced T. bartschi in Oyster Creek and at the mouth of Forked River.

Hoagland, K.E.; Crocket, L.

1981-04-01

193

The effects of scrubber installation at the Navajo Generating Station on particulate sulfur and visibility levels in the Grand Canyon.  

PubMed

Grand Canyon National Park (GCNP) is a mandatory Class I federal area that is afforded visibility protection under the Federal Clean Air Act. In this paper, we have examined the effects on visibility and particulate sulfur (Sp) at GCNP as a result of reducing sulfur dioxide (SO2) emissions by 90% from the Navajo Generating Station (NGS). Scrubbers were retrofitted to each of the three units at NGS during 1997, 1998, and 1999. The Inter-agency Monitoring of Protected Visual Environments aerosol network database affords us an opportunity to examine trends in Sp and extinction both prescrubber and postscrubber. The NGS impacts GCNP primarily during the winter (December to February). During winter, at times, there are fogs, stratus, and high-relative humidity in the Grand Canyon. When the NGS plume interacts with these fogs and stratus, rapid conversion of SO2 to Sp can occur. A variety of analytical techniques were used, including cumulative frequency plots of Sp and extinction, and chemical mass balance and tracer source apportionment analysis. We also deployed P value statistical analysis of "extreme" Sp values. Before scrubbers were installed, values of Sp approaching 2 microg/m3 were occasionally observed. Because scrubbers have been installed, high levels of Sp have been markedly reduced. Statistical P value analysis suggests that these reductions were significant. Furthermore, we have also observed that Sp has been reduced throughout the cumulative frequency curve during winter by approximately 33% since scrubbers were installed. By contrast, during summer when the NGS impact on the Canyon is minimal, there has been only a relatively small decrease in Sp. PMID:16350365

Green, Mark; Farber, Rob; Lien, Nghi; Gebhart, Kristi; Molenar, John; Iyer, Hari; Eatough, Delbert

2005-11-01

194

XOQDOQ: computer program for the meteorological evaluation of routine effluent releases at nuclear power stations. Final report  

SciTech Connect

Provided is a user's guide for the US Nuclear Regulatory Commission's (NRC) computer program X0QDOQ which implements Regulatory Guide 1.111. This NUREG supercedes NUREG-0324 which was published as a draft in September 1977. This program is used by the NRC meteorology staff in their independent meteorological evaluation of routine or anticipated intermittent releases at nuclear power stations. It operates in a batch input mode and has various options a user may select. Relative atmospheric dispersion and deposition factors are computed for 22 specific distances out to 50 miles from the site for each directional sector. From these results, values for 10 distance segments are computed. The user may also select other locations for which atmospheric dispersion deposition factors are computed. Program features, including required input data and output results, are described. A program listing and test case data input and resulting output are provided.

Sagendorf, J.F.; Goll, J.T.; Sandusky, W.F.

1982-09-01

195

Hydrogen Fuel Cell Analysis: Lessons Learned from Stationary Power Generation Final Report  

SciTech Connect

This study considered opportunities for hydrogen in stationary applications in order to make recommendations related to RD&D strategies that incorporate lessons learned and best practices from relevant national and international stationary power efforts, as well as cost and environmental modeling of pathways. The study analyzed the different strategies utilized in power generation systems and identified the different challenges and opportunities for producing and using hydrogen as an energy carrier. Specific objectives included both a synopsis/critical analysis of lessons learned from previous stationary power programs and recommendations for a strategy for hydrogen infrastructure deployment. This strategy incorporates all hydrogen pathways and a combination of distributed power generating stations, and provides an overview of stationary power markets, benefits of hydrogen-based stationary power systems, and competitive and technological challenges. The motivation for this project was to identify the lessons learned from prior stationary power programs, including the most significant obstacles, how these obstacles have been approached, outcomes of the programs, and how this information can be used by the Hydrogen, Fuel Cells & Infrastructure Technologies Program to meet program objectives primarily related to hydrogen pathway technologies (production, storage, and delivery) and implementation of fuel cell technologies for distributed stationary power. In addition, the lessons learned address environmental and safety concerns, including codes and standards, and education of key stakeholders.

Scott E. Grasman; John W. Sheffield; Fatih Dogan; Sunggyu Lee; Umit O. Koylu; Angie Rolufs

2010-04-30

196

The intensive cage culture of channel catfish, Ictalurus punctatus (Rafinesque), in the intake and discharge canals of a steam electric generating station, Trinidad, Texas  

E-print Network

THE INTENSIVE CAGE CULTURE OF CHANNEL CATFISH, ICTALURUS PUNCTATUS (RAFINESQUE), IN THE INTAKE AND DISCHARGE CANALS OF A STEAM ELECTRIC GENERATING STATION, TRINIDAD, TEXAS A Thesis by JOHN L. MURRELL, JR. Submitted to the Graduate College... of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE December 1973 Major Subject: Fisheries Science THE INTENSIVE CAGE CULTURE OF CHANNEL CATFISH, ICTALURUS PUNCTATUS (RAFINESQUE), IN THE INTAKE...

Murrell, John L

2012-06-07

197

Post-Flight Microbial Analysis of Samples from the International Space Station Water Recovery System and Oxygen Generation System  

NASA Technical Reports Server (NTRS)

The Regenerative, Environmental Control and Life Support System (ECLSS) on the International Space Station (ISS) includes the the Water Recovery System (WRS) and the Oxygen Generation System (OGS). The WRS consists of a Urine Processor Assembly (UPA) and Water Processor Assembly (WPA). This report describes microbial characterization of wastewater and surface samples collected from the WRS and OGS subsystems, returned to KSC, JSC, and MSFC on consecutive shuttle flights (STS-129 and STS-130) in 2009-10. STS-129 returned two filters that contained fluid samples from the WPA Waste Tank Orbital Recovery Unit (ORU), one from the waste tank and the other from the ISS humidity condensate. Direct count by microscopic enumeration revealed 8.38 x 104 cells per mL in the humidity condensate sample, but none of those cells were recoverable on solid agar media. In contrast, 3.32 x lOs cells per mL were measured from a surface swab of the WRS waste tank, including viable bacteria and fungi recovered after S12 days of incubation on solid agar media. Based on rDNA sequencing and phenotypic characterization, a fungus recovered from the filter was determined to be Lecythophora mutabilis. The bacterial isolate was identified by rDNA sequence data to be Methylobacterium radiotolerans. Additional UPA subsystem samples were returned on STS-130 for analysis. Both liquid and solid samples were collected from the Russian urine container (EDV), Distillation Assembly (DA) and Recycle Filter Tank Assembly (RFTA) for post-flight analysis. The bacterium Pseudomonas aeruginosa and fungus Chaetomium brasiliense were isolated from the EDV samples. No viable bacteria or fungi were recovered from RFTA brine samples (N= 6), but multiple samples (N = 11) from the DA and RFTA were found to contain fungal and bacterial cells. Many recovered cells have been identified to genus by rDNA sequencing and carbon source utilization profiling (BiOLOG Gen III). The presence of viable bacteria and fungi from WRS and OGS subsystems demonstrates the need for continued monitoring of ECLSS during future ISS operations and investigation of advanced antimicrobial controls.

Birmele, Michele N.

2011-01-01

198

Use of Reliability-Centered Maintenance for the McGuire nuclear station feedwater system. Final report  

SciTech Connect

An earlier prototype application of Reliability-Centered Maintenance (RCM) to the Component Cooling Water System at Florida Power and Light's Turkey Point Plant demonstrated that the RCM methodology is applicable for developing or revising Preventive Maintenance (PM) programs in operating nuclear power plants. This report discusses an additional RCM application made to the Main Feed Water System at Duke Power Company's McGuire Nuclear Station. The study was conducted in order to demonstrate more fully all aspects of the RCM approach. The report reviews the RCM methodology and details its application to the Main Feed Water System. The resulting RCM-based PM program is briefly compared to the current PM program for the system. The RCM process suggested four current PM tasks as candidates for Condition Directed (CD) consideration or revision and two current CD tasks as candidates for expanded scope. The RCM-based program also added nine new CD tasks as candidates to improve the effectiveness of the PM program and two new Failure Finding tasks as candidates to avoid startup delays. The report also discusses the lessons learned through the two studies. The study shows the RCM methodology to be an effective tool both for defining a PM program and for providing traceable documentation to enhance the credibility of the PM program.

Crellin, G.L.; Matteson, T.D.; Smith, A.M.

1986-09-01

199

Steam generator group project: Task 13 final report: Nondestructive examination validation  

SciTech Connect

The Steam Generator Group Project (SGGP) was a multi-task effort using the retired-from-service Surry 2A pressurized water reactor steam generator as a test bed to investigate the reliability and effectiveness of in-service nondestructive eddy current (EC) inspection equipment and procedures. The information developed provided the technical basis for recommendations for improved in- service inspection and tube plugging criteria of steam generators. This report describes the results and analysis from Task 13--NDE Validation. The primary objective of Task 13 was to validate the EC inspection to detect and size tube defects. Additional objectives were to assess the nature and severity of tube degradation from all regions of the generator and to measure the remaining integrity of degraded specimens by burst testing. More than 550 specimens were removed from the generator and included in the validation studies. The bases for selecting the specimens and the methods and procedures used for specimen removal from the generator are reported. Results from metallurgical examinations of these specimens are presented and discussed. These examinations include visual inspection of all specimens to locate and identify tube degradation, metallographic examination of selected specimens to establish defect severity and burst testing of selected specimens to establish the remaining integrity of service-degraded tubes. Statistical analysis of the combined metallurgical and EC data to determine the probability of detection (POD) and sizing accuracy are reported along with a discussion of the factors which influenced the EC results. Finally, listings of the metallurgical and corresponding EC data bases are given. 12 refs., 141 figs., 24 tabs.

Bradley, E.R.; Doctor, P.G.; Ferris, R.H.; Buchanan, J.A.

1988-08-01

200

76 FR 24064 - Arizona Public Service Company, Palo Verde Nuclear Generating Station, Units 1, 2, and 3, Notice...  

Federal Register 2010, 2011, 2012, 2013

...from new supercritical coal-fired generation; natural gas combined-cycle generation; new nuclear generation; a combination of alternatives that...PVNGS units are pressurized water reactors located in Maricopa County,...

2011-04-29

201

A new method to assess mercury emissions: a study of three coal-fired electric-generating power station configurations.  

PubMed

U.S. Environmental Protection Agency (EPA) Method 7473 for the analysis of mercury (Hg) by thermal decomposition, amalgamation, and atomic absorption spectroscopy has proved successful for use in Hg assessment at coal-fired power stations. In an analysis time of approximately 5 min per sample, this instrumental methodology can directly analyze total Hg--with no discrete sample preparation--in the solid matrices associated with a coal-fired power plant, including coal, fly ash, bottom ash, and flue gas desulfurization (FGD) material. This analysis technique was used to investigate Hg capture by coal combustion byproducts (CCBs) in three different coal-fired power plant configurations. Hg capture and associated emissions were estimated by partial mass balance. The station equipped with an FGD system demonstrated 68% capture on FGD material and an emissions estimate of 18% (11 kg/yr) of total Hg input. The power plant equipped with low oxides of nitrogen burners and an electrostatic precipitator (ESP) retained 43% on the fly ash and emitted 57% (51 kg/yr). The station equipped with conventional burners and an ESP retained less than 1% on the fly ash, emitting an estimated 99% (88 kg/yr) of Hg. Estimated Hg emissions demonstrate good agreement with EPA data for the power stations investigated. PMID:14649751

Boylan, Helen M; Cain, Randy D; Kingston, H M

2003-11-01

202

Protostellar Feedback and Final Mass of the Second-generation Primordial Stars  

NASA Astrophysics Data System (ADS)

The first stars in the universe ionized the ambient primordial gas through various feedback processes. "Second-generation" primordial stars potentially form from this disturbed gas after its recombination. In this Letter, we study the late formation stage of such second-generation stars, where a large amount of gas accretes onto the protostar and the final stellar mass is determined when the accretion terminates. We directly compute the complex interplay between the accretion flow and stellar ultraviolet (UV) radiation, performing radiation-hydrodynamic simulations coupled with stellar evolution calculations. Because of more efficient H2 and HD cooling in the pre-stellar stage, the accretion rates onto the star are 10 times lower than in the case of the formation of the first stars. The lower accretion rates and envelope density result in the occurrence of an expanding bipolar H II region at a lower protostellar mass M * ~= 10 M ?, which blows out the circumstellar material, thereby quenching the mass supply from the envelope to the accretion disk. At the same time the disk loses mass due to photoevaporation by the growing star. In our fiducial case the stellar UV feedback terminates mass accretion onto the star at M * ~= 17 M ?. Although the derived masses of the second-generation primordial stars are systematically lower than those of the first generation, the difference is within a factor of only a few. Our results suggest a new scenario, whereby the majority of the primordial stars are born as massive stars with tens of solar masses, regardless of their generations.

Hosokawa, Takashi; Yoshida, Naoki; Omukai, Kazuyuki; Yorke, Harold W.

2012-12-01

203

PROTOSTELLAR FEEDBACK AND FINAL MASS OF THE SECOND-GENERATION PRIMORDIAL STARS  

SciTech Connect

The first stars in the universe ionized the ambient primordial gas through various feedback processes. 'Second-generation' primordial stars potentially form from this disturbed gas after its recombination. In this Letter, we study the late formation stage of such second-generation stars, where a large amount of gas accretes onto the protostar and the final stellar mass is determined when the accretion terminates. We directly compute the complex interplay between the accretion flow and stellar ultraviolet (UV) radiation, performing radiation-hydrodynamic simulations coupled with stellar evolution calculations. Because of more efficient H{sub 2} and HD cooling in the pre-stellar stage, the accretion rates onto the star are 10 times lower than in the case of the formation of the first stars. The lower accretion rates and envelope density result in the occurrence of an expanding bipolar H II region at a lower protostellar mass M{sub *} {approx_equal} 10 M{sub Sun }, which blows out the circumstellar material, thereby quenching the mass supply from the envelope to the accretion disk. At the same time the disk loses mass due to photoevaporation by the growing star. In our fiducial case the stellar UV feedback terminates mass accretion onto the star at M{sub *} {approx_equal} 17 M{sub Sun }. Although the derived masses of the second-generation primordial stars are systematically lower than those of the first generation, the difference is within a factor of only a few. Our results suggest a new scenario, whereby the majority of the primordial stars are born as massive stars with tens of solar masses, regardless of their generations.

Hosokawa, Takashi; Yoshida, Naoki [Department of Physics, University of Tokyo, Tokyo 113-0033 (Japan); Omukai, Kazuyuki [Department of Physics, Kyoto University, Kyoto 606-8502 (Japan); Yorke, Harold W., E-mail: takashi.hosokawa@phys.s.u-tokyo.ac.jp, E-mail: hosokwtk@gmail.com [Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 (United States)

2012-12-01

204

Ecological studies of wood-boring bivalves in the vicinity of the Oyster Creek Nuclear Generating Station. Progress report, September-November 1981  

SciTech Connect

The species composition, distribution, and population dynamics of wood-boring bivalves are being studied in the vicinity of the Oyster Creek Nuclear Generating Station, Barnegat Bay, New Jersey. Untreated wood test panels are used to collect organisms at 12 stations. Physiological tolerances of 3 species are also under investigation in the laboratory. Competition among the species is being analyzed. In the fall of 1981, Teredo bartschi remained in Oyster Creek despite continuous prolonged outages of the Oyster Creek Nuclear Generating Station. It did not spread to Forked River or Waretown as it had done in other years when the effluent was present. The peak in larval production and settlement of T. bartschi occurred between September and October. Settlement of shipworms occurred on no monthly panels except those in Oyster Creek during the period of this report. Laboratory experiments revealed that T. bartschi becomes inactive at 5/sup 0/C (24/sup 0///sub 00/) and T. navalis shows signs of osmotic stress below 10/sup 0///sub 00/ at 18/sup 0/C. The shipworms in Barnegat Bay do not show a preference for settling at the mudline when the substrate is not limited.

Hoagland, K.E.; Crocket, L.

1982-06-01

205

A New Method to Assess Mercury Emissions: A Study of Three Coal-Fired Electric-Generating Power Station Configurations  

Microsoft Academic Search

U.S. Environmental Protection Agency (EPA) Method 7473 for the analysis of mercury (Hg) by thermal decomposition, amalgamation, and atomic absorption spectroscopy has proved successful for use in Hg assessment at coal-fired power stations. In an analysis time of ?5 min per sample, this instrumental methodology can directly analyze total Hg—with no discrete sample preparation—in the solid matrices associated with a

Helen M. Boylan; Randy D. Cain; H. M. “Skip” Kingston

2003-01-01

206

Mod-5A wind turbine generator program design report. Volume 3: Final design and system description, book 1  

NASA Technical Reports Server (NTRS)

The design, development and analysis of the 7.3 MW MOD-5A wind turbine generator is documented. Volume 3, book 1 describes the performance and characteristics of the MOD-5A wind turbine generator in its final configuration. Each subsystem - the rotor, drivetrain, nacelle, tower and foundation is described in detail.

1984-01-01

207

Generating a representative signal of coal ash content to anticipate combustion control in a thermal power station.  

PubMed

This paper describes the possibilities of continuously measuring coal ash in the boiler feeding circuit of a thermal power station so that the measurement can be used as a signal for the boiler combustion control system. An installation was designed, at semi-industrial scale, that could faithfully reproduce the operation of a belt feeder. In order to measure the ash content, a natural radioactivity meter was installed and a large number of coal samples with different ranks and grain sizes were tested, eventually showing the possibility of achieving the objective. PMID:15082052

Prieto-Fernández, Ismael; Santurio-Díaz, José M; Folgueras-Díaz, Belén; López-Bobo, M Rosario; Fernández-Viar, Pedro

2004-05-01

208

Characterization of alternative electric generation technologies for the SPS comparative assessment: volume 2, central-station technologies  

SciTech Connect

The SPS Concept Development and Evaluation Program includes a comparative assessment. An early first step in the assessment process is the selection and characterization of alternative technologies. This document describes the cost and performance (i.e., technical and environmental) characteristics of six central station energy alternatives: (1) conventional coal-fired powerplant; (2) conventional light water reactor (LWR); (3) combined cycle powerplant with low-Btu gasifiers; (4) liquid metal fast breeder reactor (LMFBR); (5) photovoltaic system without storage; and (6) fusion reactor.

Not Available

1980-08-01

209

The abundance and distribution of macro-invertebrates in the cooling-water canal system of the P. H. Robinson Generating Station located on Galveston Bay, Texas, with emphasis on the effect of supplemental cooling towers  

E-print Network

THE ABUNDANCE AND DISTRIBUTION OF MACRO-INVERTEBRATES IN THE COOLING- WATER CANAL SYSTEM OF THE P. H. ROBINSON GENERATING STATION LOCATED ON GALVESTON BAY, TEXAS, WITH EMPHASIS ON THE EFFECT OF SUPPLEMENTAL COOLING TOWERS. A Thesis by F... OF MACRO-INVERTEBRATES IN THE COOLING- WATER CANAL SYSTEM OF THE P. H. ROBINSON GENERATING STATION LOCATED ON GALVESTON BAY, TEXAS, WITH EMPHASIS ON THE EFFECT OF SUPPLEMENTAL COOLING TOWERS. A Thesis by F. JOSEPH MARGRAF Approved as to style...

Margraf, F. Joseph

2012-06-07

210

Temporal and spatial distribution of fishes in the upper Galveston Bay System with particular reference to the cooling water system of Cedar Bayou Generating Station  

E-print Network

small isolated patches developed primarily between the new (north) jetty and station 21. From each of the shoreline stations (except 13 and 18) two 0 stations were set up on a 130 course at 500 m and 1350 m offshore with the exception of station 11... small isolated patches developed primarily between the new (north) jetty and station 21. From each of the shoreline stations (except 13 and 18) two 0 stations were set up on a 130 course at 500 m and 1350 m offshore with the exception of station 11...

Holt, Scott Allen

2012-06-07

211

Mod-5A wind turbine generator program design report. Volume 3: Final design and system description, book 2  

NASA Technical Reports Server (NTRS)

The design, development and analysis of the 7.3MW MOD-5A wind turbine generator is documented. The report is divided into four volumes: Volume 1 summarizes the entire MOD-5A program, Volume 2 discusses the conceptual and preliminary design phases, Volume 3 describes the final design of the MOD-5A, and Volume 4 contains the drawings and specifications developed for the final design. Volume 3, book 2 describes the performance and characteristics of the MOD-5A wind turbine generator in its final configuration. The subsystem for power generation, control, and instrumentation subsystems is described in detail. The manufacturing and construction plans, and the preparation of a potential site on Oahu, Hawaii, are documented. The quality assurance and safety plan, and analyses of failure modes and effects, and reliability, availability and maintainability are presented.

1984-01-01

212

Next Generation Fast RF Interlock Module and ATCA Adapter for ILC High Availability RF Test Station Demonstration  

SciTech Connect

High availability interlocks and controls are required for the ILC (International Linear Collider) L-Band high power RF stations. A new F3 (Fast Fault Finder) VME module has been developed to process both fast and slow interlocks using FPGA logic to detect the interlock trip excursions. This combination eliminates the need for separate PLC (Programmable Logic Controller) control of slow interlocks. Modules are chained together to accommodate as many inputs as needed. In the next phase of development the F3's will be ported to the new industry standard ATCA (Advanced Telecom Computing Architecture) crate (shelf) via a specially designed VME adapter module with IPMI (Intelligent Platform Management Interface). The goal is to demonstrate auto-failover and hot-swap for future partially redundant systems.

Larsen, R

2009-10-17

213

DOE small-scale hydroelectric demonstration program. F. W. E. Stapenhorst, Inc., Goodyear Lake hydroelectric-generating-station redevelopment  

NASA Astrophysics Data System (ADS)

Monthly and year long data on the performance, maintenance, power generation, flow conditions, and operating costs during the period from August 11, 1981 to August 10, 1982 at the Goodyear Lake (New York) small-scale hydroelectric power plant are presented. During this period the plant generated 5,806,500 kWh of power for a total income of $194.401, which represents approximately 79% of predicted values. The shortfall in output resulted from the failure of Generator Unit No. 1 which was out of operation for two months.

1982-07-01

214

Low-level radioactive waste from nuclear power generating stations: Characterization, classification and assessment of activated metals and waste streams  

SciTech Connect

Since the enactment of 10 CFR Part 61, additional difficult-to-measure long-lived radionuclides, not specified in Tables 1 2 of Part 61, have been identified (e.g., [sup 108m]Ag, [sup 93]Mo, [sup 36]Cl, [sup 10]Be, [sup 113m]Cd, [sup 121m]Sn, [sup 126]Sn, [sup 93m]Nb) that may be of concern in certain types of waste. These nuclides are primarily associated with activated metal and perhaps other nuclear power low-level waste (LLW) being sent to disposal facilities. The concentration of a radionuclide in waste materials is normally determined by direct measurement or by indirect calculational methods, such as using a scaling factor to relate inferred concentration of a difficult-to-measure radionuclide to another that is easily measured. The total disposal site inventory of certain difficult-to-measure radionuclides (e.g., [sup 14]C, [sup 129]I, and [sup 99]Tc) often control the total quantities of radioactive waste permitted in LLW burial facilities. Overly conservative scaling factors based on lower limits of detection (LLD), often used in the nuclear power industry to estimate these controlling nuclides, could lead to premature closure of a disposal facility. Samples of LLW (Class B and C activated metals [AM] and other waste streams) are being collected from operating nuclear power stations and analyzed for radionuclides covered in 10 CFR Part 61 and the additional difficult-to-measure radionuclides. This analysis will enhance the NRC's understanding of the distribution and projected quantities of radionuclides within AM and LLW streams from commercial nuclear power stations. This research will also provide radiological characterization of AM specimens for others to use in leach-rate and lysimeter experiments to determine nuclide releases and subsequent movement in natural soil environments.

Thomas, V.W.; Robertson, D.E.; Thomas, C.W.

1993-02-01

215

Low-level radioactive waste from nuclear power generating stations: Characterization, classification and assessment of activated metals and waste streams  

SciTech Connect

Since the enactment of 10 CFR Part 61, additional difficult-to-measure long-lived radionuclides, not specified in Tables 1 2 of Part 61, have been identified (e.g., {sup 108m}Ag, {sup 93}Mo, {sup 36}Cl, {sup 10}Be, {sup 113m}Cd, {sup 121m}Sn, {sup 126}Sn, {sup 93m}Nb) that may be of concern in certain types of waste. These nuclides are primarily associated with activated metal and perhaps other nuclear power low-level waste (LLW) being sent to disposal facilities. The concentration of a radionuclide in waste materials is normally determined by direct measurement or by indirect calculational methods, such as using a scaling factor to relate inferred concentration of a difficult-to-measure radionuclide to another that is easily measured. The total disposal site inventory of certain difficult-to-measure radionuclides (e.g., {sup 14}C, {sup 129}I, and {sup 99}Tc) often control the total quantities of radioactive waste permitted in LLW burial facilities. Overly conservative scaling factors based on lower limits of detection (LLD), often used in the nuclear power industry to estimate these controlling nuclides, could lead to premature closure of a disposal facility. Samples of LLW (Class B and C activated metals [AM] and other waste streams) are being collected from operating nuclear power stations and analyzed for radionuclides covered in 10 CFR Part 61 and the additional difficult-to-measure radionuclides. This analysis will enhance the NRC`s understanding of the distribution and projected quantities of radionuclides within AM and LLW streams from commercial nuclear power stations. This research will also provide radiological characterization of AM specimens for others to use in leach-rate and lysimeter experiments to determine nuclide releases and subsequent movement in natural soil environments.

Thomas, V.W.; Robertson, D.E.; Thomas, C.W.

1993-02-01

216

78 FR 285 - Supplemental Final Environmental Impact Statement for Healy Power Generation Unit #2, Healy, AK  

Federal Register 2010, 2011, 2012, 2013

...supplemental final environmental impact statement (SFEIS) to update information...DOE's) ``Final Environmental Impact Statement for the Proposed Healy...1993. The FEIS evaluated potential impacts to the human environment from DOE's...

2013-01-03

217

78 FR 50455 - Vogtle Electric Generating Station, Units 3 and 4; Southern Nuclear Operating Company; Changes to...  

Federal Register 2010, 2011, 2012, 2013

...Operating Company; Changes to the Chemical Volume Control System AGENCY...Vogtle Electric Generating Plant (VEGP), Units 3 and 4...requests changes that modify the Chemical and Volume Control System...13-002, ``Changes to the Chemical and Volume Control...

2013-08-19

218

75 FR 6071 - Exelon Generation Company, LLC; PSEG Nuclear, LLC; Peach Bottom Atomic Power Station Units 2 and...  

Federal Register 2010, 2011, 2012, 2013

...Company, LLC; PSEG Nuclear, LLC; Peach Bottom...License The U.S. Nuclear Regulatory Commission...request of Exelon Generation Company, LLC, (Exelon) and PSEG Nuclear, LLC, to withdraw...Division of Operating Reactor Licensing,...

2010-02-05

219

76 FR 52357 - Exelon Generation Company, LLC; PSEG Nuclear, LLC; Peach Bottom Atomic Power Station, Unit 3...  

Federal Register 2010, 2011, 2012, 2013

...Branch 1-2, Division of Operating Reactor Licensing, Office of Nuclear Reactor Regulation, U.S. Nuclear Regulatory Commission, Washington...License No. DPR-56, issued to Exelon Generation Company, LLC, and PSEG...

2011-08-22

220

78 FR 26058 - Notice of Issuance of Final Determination Concerning Generation II Military Energizer Flashlights  

Federal Register 2010, 2011, 2012, 2013

...Determination Concerning Generation II Military Energizer Flashlights AGENCY: U.S...country of origin of the Generation II military Energizer flashlight, with light-emitting...country of origin of the Generation II military Energizer flashlight, for purposes...

2013-05-03

221

Weld repair of a high pressure generator rotor for Commonwealth Edison Co. Joliet Station {number_sign}29  

SciTech Connect

A 550 Mw, high pressure (BP) generator field developed a circumferential crack in the transition formed between the main rotor body (40 inch diameter) and shaft extension (23 inch diameter) at the collector ring end after 20 years of service. Metallurgical investigation of a sample from the HP rotor revealed that the crack initiated from low cycle fatigue in the thin ligament section formed between the edge of the pole slot and the edge of a 5/8 inch diameter bolt hole. It was determined that the crack initiated at the OD surface of the BP generator shaft and propagated to a radial depth of 3.1 inch. Tooling and fixtures were developed to support the weight of the rotor during machining, welding and post weld heat treatment operations. The repair consisted of machining the crack to removal using a narrow groove (approximate groove angle of 2 degrees per side) extending, 360 degrees around the circumference of the rotor. The narrow groove was weld restored using, the automatic gas tungsten arc welding, process. The filler metal for the weld deposit, an SFA 5.28 ER 100S-1, was selected to match the chemical and physical properties of the BP rotor material. The HP rotor was classified as an ASTM A469 Class 4 forging. By performing this repair, CECo saved approximately $1.5 million in generator field replacement costs and avoided 12 to 18 months of lost generation while waiting for the replacement HP generator field.

Holby, E.R. [IFR Engineering Co., Sugar Grove, IL (United States); Galanes, G. [Commonwealth Edison Co., Downers Grove, IL (United States)

1995-09-01

222

The Concept of Limitation of the Vibration Generated by Rail-Vehicles at Railway Stations and Railway Crossings  

NASA Astrophysics Data System (ADS)

One of the possibilities of limitation of effects of dynamic influence of the rail-vehicles is the application of the complex objects of vibroinsulation when the mass of the vibroinsulating element is significant, and that is the case of the transporting machines and devices, when the geometric dimensions of the elements of vibroinsulation system are similar to the slab, where the process of modelling of the vibroinsulation mechanism as a discrete system, creates extreme hazards. The article presents the concept of limitation of effects of dynamic influence of the rail-vehicles and tram-vehicles, mainly in the railway tracks located at the railway stations, tram-stops and other engineering structures. The digital model was developed for simulation regarding the propagation of the vibration to the environment. The results of simulation were the basis for development of the vibroinsulation system for the rail-tracks located at the engineering structures such as railway stations, viaducts. The second part of the article presents the approach for controlling of the tension as a function of load of the railway crossing, which was modelled as discrete-continous model. The continuous systems consist of two elements, that is of the support made of elastomer and of the tension members with controlled tension depending on the crossing load. Together with development and more popular application of tension member systems in engineering structures, among others in vibroinsulation systems, it is important to include into calculations and experiments the dynamic loads of the tension member with the mass attached to it. In case of complex objects of vibroinsulation when the mass of the vibroinsulator is significant, and that is the case of the transporting machines and devices, when the geometric dimensions of the elements of vibroinsulation system are similar to the slab, where the process of modelling of the vibroinsulation mechanism as a discrete system, creates extreme hazards when the vibroinsulation is chosen without consideration of its mass. The most serious of the hazards is occurrence of the wave effect of the springdumper elements, since it cannot be assumed that the elements are weight free. In such an elastic element wave phenomena might occur, which in turn might cause that the effect of vibroinsulation is opposite to the expected, that is to the limitation of the dynamic influence on the environment. To prevent such a possibility it is necessary to estimate the natural frequency of the vibroinsulating system based on the consideration of the system as a continuous model and discrete-continuous model. In case when the vibroinsulating elements (rubber or tension member) are characterised by their mass distributed evenly, the frequencies for uniform prismatic systems, e.g. rubber systems, might be estimated based on the method presented in the article. Based on the presented analysis of the proposed control system it can be stated that there exists the possibility of application of that type of control for controlling of the rigidity of the vibroinsulation system of the subgrade. Based on the numerous simulations with different weights of the crossing vehicles and different times of crossing it should be considered to use experimental method for calculation of the PID coefficients for different configurations of the weight and crossing time to dynamically adjust the coefficients based on the information on the speed and weight of the vehicle.

Adamczyk, Jan; Targosz, Jan

2011-03-01

223

Ecological studies of wood-boring bivalves in the vicinity of the Oyster Creek Nuclear Generating Station. Progress report, June-August 1982  

SciTech Connect

The species composition, distribution, and population dynamics of wood-boring bivalves are being studied in the vicinity of the Oyster Creek Nuclear Generating Station, Barnegat Bay, New Jersey. Untreated wood test panels are used to collect organisms at 12 stations. Physiological tolerances of 3 species are also under investigation in the laboratory. Competition among the species is being analyzed. Adult populations of Teredo bartschi existed in both Oyster Creek and Forked River in the summer of 1982, but the species was rare. There was no large settlement of this or any other teredinid species in Barnegat Bay. Teredo navalis was the most common species in the monthly panels. The fouling community reached its maximum yearly diversity in June-July. There was a thermal effluent causing a ..delta..T of 3 to 4/sup 0/C during most of the summer, and salinity in Oyster Creek and Forked River was similar to that of Barnegat Bay. The lack of a shipworm outbreak in 1982 may be related to the low ..delta..T in summer, plus the lack of a thermal effluent in the preceding winter-spring period.

Hoagland, K.E.

1982-12-01

224

Analysis of populations of boring and fouling organisms in the vicinity of the Oyster Creek Nuclear Generating Station. Quarterly progress report No. 12, Jun-Aug 79  

SciTech Connect

The growth, distribution, and species composition of marine borers (primarily shipworms) and fouling organisms are being studied in the vicinity of the Oyster Creek Nuclear Generating Station, Barnegat Bay, New Jersey. Untreated wood test panels are used to collect organisms at 18 localities. Our most recent findings covering June-August, 1979, are that at least one subtropical species of the borer family Teredinidae, Teredo bartschi, continues to live in Oyster Creek and can breed in Forked River, although many die off in winter in Forked River and the species may have to recolonize. A few of the subtropical T. furcifera also survive in Oyster Creek but cause negligible damage at present, compared with T. bartschi. The summer, 1979, outbreak of T. bartschi in Oyster Creek was severe, causing nearly total destruction to wood panels. The breeding season for T. bartschi was the same as in 1978. Some fouling organisms were present in Oyster Creek that are absent in control creek stations due to low salinity.

Hoagland, K.E.; Crocket, L.

1980-07-01

225

Ecological studies of wood-boring bivalves in the vicinity of the Oyster Creek Nuclear Generating Station: progress report June-August 1981. Quarterly progress report 1 Jun-31 Aug 81  

SciTech Connect

The species composition, distribution, and population dynamics of wood-boring bivalves are being studied in the vicinity of the Oyster Creek Nuclear Generating Station, Barnegat Bay, New Jersey. Untreated wood test panels are used to collect organisms at 12 stations. Physiological tolerances of 3 species are also under investigation in the laboratory. Competition among the species is being analyzed. In the summer of 1981, Teredo bartschi occurred in large numbers at one station in Oyster Creek, but did not appear in significant numbers in Forked River.

Hoagland, K.E.; Crocket, L.

1982-01-01

226

Abundance and distribution of macro-crustaceans in the intake and discharge areas before and during early operation of the Cedar Bayou Generating Station  

E-print Network

of the bay, from approximately 1. 5 m at Station 7 to 1. 0 m at Station 25 during a normal tide. This gradient was less marked, although it was evi- dent, among the five outside stations, which varied in depth from 1. 5 m to 2. 0 m. Excessively high... of the bay, from approximately 1. 5 m at Station 7 to 1. 0 m at Station 25 during a normal tide. This gradient was less marked, although it was evi- dent, among the five outside stations, which varied in depth from 1. 5 m to 2. 0 m. Excessively high...

Schmidt, Monroe

2012-06-07

227

Ultrasonic enhancement of chemical cleaning of steam generators. Final report. [PWR  

Microsoft Academic Search

This report presents the results of an investigation into the use of ultrasound to enhance the chemical cleaning of steam generator tube and support crevices. Primary attention was focused on a configuration with ultrasonic transducers in the downcomer region of the steam generator in conjunction with the EPRI Steam Generator Owners Group (SGOG) crevice solvent at 200°F. The investigation consisted

Scharton

1983-01-01

228

76 FR 29278 - Luminant Generation Company LLC.; Notice of Availability of the Final Environmental Impact...  

Federal Register 2010, 2011, 2012, 2013

...Environmental Impact Statement for Combined Licenses for Comanche Peak Nuclear Power Plant Units 3 and 4 Notice is hereby given...Impact Statement for Combined Licenses (COLs) for Comanche Peak Nuclear Power Plant Units 3 and 4: Final...

2011-05-20

229

Steam-generator chemical cleaning: demonstration test in a model boiler. Final report  

Microsoft Academic Search

Steam Generators in pressurized-water-reactor (PWR) nuclear plants have experienced tubing degradation and support-structure damage by a variety of corrosion mechanisms related to the accumulation of secondary side corrosion products within low-flow steam-blanket areas. The Steam Generator Owners Group (SGOG) and the Electric Power Research Institute (EPRI) have sponsored a program to develop a process for the chemical removal of steam-generator

G. C. Fink; M. H. Helyer; G. L. Key; D. B. Scott

1983-01-01

230

Space Station  

NASA Technical Reports Server (NTRS)

The official start of a bold new space program, essential to maintain the United States' leadership in space was signaled by a Presidential directive to move aggressively again into space by proceeding with the development of a space station. Development concepts for a permanently manned space station are discussed. Reasons for establishing an inhabited space station are given. Cost estimates and timetables are also cited.

Anderton, D. A.

1985-01-01

231

Evaluation test on a landfill gas-fired turbine at the Los Angeles County Sanitation District's Puente Hill Landfill Electric Generation Station. Air pollution test report  

SciTech Connect

A cooperative test program was conducted from February 25 through February 27, 1986 by Air Resources Board (ARB) and South Coast Air Quality Management District (SCAQMD) staff to evaluate the gaseous constituents from untreated landfill gas used to fuel a turbine and the emissions from that turbine located at the Los Angeles County Sanitation District's Puente Hills Electric Generating Station. The turbine was fueled with gases generated by the anaerobic decomposition of buried refuse at the Los Angeles County Sanitation District's Puente Hills Landfill. Emissions of criteria pollutant as determined from ARB test data are reported. Mass flow rates and destruction and removal efficiencies (DRE) of non-criteria pollutant compounds determined at the stack from SCQAMD bag-sample test data and mass-flow rates and DRE's for chlorinated and aromatic compounds determined from data from ARB resin samples are presented. Destruction and removal efficiencies based on mass-flow rates for chlorinated compounds ranged from 17 to 99+ percent and for aromatic compounds ranged from negative to 99+ percent. The possible formation of the compounds - chlorinated dioxins, furans, and polychlorinated biphenyls - was considered and samples were taken for analyses for these compounds. Dioxins, furans, and polychlorinated biphenyls were not detected in the inlet nor the outlet gas stream samples.

Not Available

1986-07-01

232

Environmental radiological studies conducted during 1986 in the vicinity of the Rancho Seco Nuclear Power Generating Station  

SciTech Connect

This report summarizes the information compiled in 1986 for our assessment of the environmental impact of radionuclides discharged with aqueous releases from the Rancho Seco Nuclear Power Generating Plant. In October 1984, a liquid-effluent control program was initiated that significantly reduced the quantities of radionuclides discharged with liquid waste from the plant. However, results from our sampling program in 1986 indicate that previously discharged radionuclides persist in the downstream environment and are found in many aquatic dietary components although at concentrations much lower than those measured in 1984 and 1985. The greatly reduced activities in the dietary components from the aquatic environment attest to the effectiveness of the liquid-effluent control program. Concentrations in the flesh of fish from the creeks have decreased over time and with distance from the plant outfall. The mean concentration of /sup 137/Cs in fish collected from Laguna Creek at locations more than 7.5 km from Rancho Seco is now comparable to the concentration determined in fresh-water fish randomly selected from Chicago, Illinois, markets. By August 1986, the mean concentration of /sup 137/Cs in the flesh of bluegill had fallen to 7% of the concentration measured in fish from comparable locations in 1984 and was 30% of the mean concentration measured in these fish during August 1985. Stable potassium in the water plays a major role in the accumulation of /sup 137/Cs by fish. Concentrations of /sup 137/Cs in the surface sections of creek sediments also declined between the end of 1984 and 1986 with an effective half-life of approximately 2 y. Surface soils collected around a perimeter 11 km from Rancho Seco and from ranchlands closer to the plant showed only concentrations of /sup 137/Cs originating from global fallout. Soils previously irrigated with Clay Creek water retain levels of both /sup 134/Cs and /sup 137/Cs.

Noshkin, V.E.; Wong, K.M.; Eagle, R.J.; Brunk, J.L.; Jokela, T.A.

1987-03-01

233

PWR steam generator chemical cleaning. Phase I, final report: solvent and process development. Volume I  

Microsoft Academic Search

Two chemical cleaning solvent systems and two application methods were developed to remove the sludge in nuclear steam generators and to remove the corrosion products in the annuli between the steam generator tubes and the support plates. Laboratory testing plus subsequent pilot testing has demonstrated that, in a reasonable length of time, both solvents are capable of dissolving significant amounts

Rothstein

1978-01-01

234

Evaluation of steam-generator fluid mixing during layup. Final report. [PWR  

Microsoft Academic Search

The objective of this project was to develop practical methods of achieving an adequately mixed chemical environment on the secondary side of PWR steam generators during periods of shutdown, cold shutdown (layup), and startup. Layup chemicals introduced into the steam generator could then be evenly dispersed to minimize corrosion processes which may occur if the chemical environment was not properly

MacArthur

1983-01-01

235

Return of hideout chemicals in PWR steam generators during power and temperature reductions. Final report  

Microsoft Academic Search

To provide a basis for assessing the value of power reductions and shutdown flushing programs for removing impurities from PWR steam generators, hideout return data from 10 plants were reviewed. Power reductions to approximately 50 percent generally did not lead to significant hideout return nor to a major increase in the rate of impurity removal from the steam generators. However,

S. G. Sawochka; S. S. Choi

1986-01-01

236

Evaluation of steam generator chemical hideout at the Prairie Island PWR: Final report  

Microsoft Academic Search

A study was performed at the Prairie Island Unit 2 PWR to quantify hideout in the steam generators. During the study, the reactor was at approximately 56% power. A solution of potassium nitrate and potassium chloride was injected at a precisely known concentration and rate for 25 hours into the feedwater to the steam generators. The injection period was sufficient

G. F. Palino; M. E. Clouse; S. G. Sawochka

1988-01-01

237

Characterizing toxic emissions from a coal-fired power plant demonstrating the AFGD ICCT Project and a plant utilizing a dry scrubber/baghouse system: Bailly Station Units 7 and 8 and AFGD ICCT Project. Final report. Final report  

SciTech Connect

This report describes results of assessment of the risk of emissions of hazardous air pollutants at one of the electric power stations, Bailly Station, which is also the site of a Clean Coal Technology project demonstrating the Pure Air Advanced Flue Gas Desulfurization process (wet limestone). This station represents the configuration of no NO{sub x} reduction, particulate control with electrostatic precipitators, and SO{sub 2} control with a wet scrubber. The test was conducted September 3--6, 1993. Sixteen trace metals were determined along with 5 major metals. Other inorganic substances and organic compounds were also determined.

Dismukes, E.B.

1994-10-20

238

77 FR 15794 - Final Environmental Impact Statement for the Proposed KRoad Moapa Solar Generation Facility...  

Federal Register 2010, 2011, 2012, 2013

...exposure to levels of high solar radiation exists. The...meeting their renewable energy goals, by providing electricity generated from solar resources from tribal...respond to the proposed solar energy ground lease and...

2012-03-16

239

Zero Emission Power Generation Technology Development. Final Report. May 1-December 31, 2004.  

National Technical Information Service (NTIS)

Clean Energy Systems (CES) was previously funded by DOE's 'Vision 21' program. This program provided a proof-of-concept demonstration that CES' novel gas generator (combustor) enabled production of electrical power from fossil fuels without pollution. CES...

R. Bischoff, S. Doyle

2005-01-01

240

Chemical-cleaning process evaluation: Westinghouse steam generators. Final report. [PWR  

Microsoft Academic Search

The Steam Generator Owners Group (SGOG)\\/Electric Power Research Institute (EPRI) Steam Generator Secondary Side Chemical Cleaning Program, under develpment since 1978, has resulted in a generic process for the removal of accumulated corrosion products and tube deposits in the tube support plate crevices. The SGOG\\/EPRI Project S150-3 was established to obtain an evaluation of the generic process in regard to

W. F. Cleary; G. B. Gockley

1983-01-01

241

Steam-generator chemical-cleaning process development. Final report. [PWR  

Microsoft Academic Search

As a result of work sponsored by the Steam Generator Owners Group (SGOG) and managed by the Electric Power Research Institute (EPRI), a process for chemical removal of iron- and copper-bearing sludges and tube-to-support plate crevice corrosion product deposits from the secondary side of pressurized water reactor (PWR) steam generators has been developed. The process has undergone extensive pilot-scale testing

D. Schneidmiller; D. Stiteler

1983-01-01

242

Impact of dispersed storage and generation on electric distribution planning and operation. Draft: final report  

Microsoft Academic Search

This study, conducted for the US Department of Energy, Electric Energy Systems Division (DOE\\/EES), assessed the impact of dispersed storage and generation (DSG) technologies on electric distribution systems. An assessment using a distribution system planning simulation approach was developed, then demonstrated with data for two US utilities. Case demonstrations considered dispersible supply-side storage and generation (DSSG), including lead-acid and advanced

F. S. Ma; L. Isaksen; J. W. Patmore; R. Patton

1978-01-01

243

Impacts of dispersing storage and generation in electric distribution systems. Final report  

Microsoft Academic Search

Small-scale Dispersed Storage and Generation (DSG) connected to the electric-distribution systems provide one alternative to large-scale additions to utility supply and delivery systems. In addition to being generating sources, DSG may also provide benefits to the distribution system by reducing capacity requirements, improving reliability, and lowering losses. This study offers a consistent, unifying methodology for evaluating the dispersion effect of

F. S. Ma; L. Isaksen; R. Patton

1979-01-01

244

Species composition, distribution and abundance of zooplankton (including ichthyoplankton) in the intake and discharge canals of a steam-electric generating station located on Galveston Bay, Texas  

E-print Network

at Station l. . . . . . . . 165 60 Total number of C~obaohoma. bob~ caught by 0. 5 ? m plankton net, mean length and density at Station 2. . . . , . . . 166 XV LIST OF TABLES (continued) Number Total number of Gob&ohoma bo~ci caught by 0. 5 ? m... at Station l. . . . . . . . 165 60 Total number of C~obaohoma. bob~ caught by 0. 5 ? m plankton net, mean length and density at Station 2. . . . , . . . 166 XV LIST OF TABLES (continued) Number Total number of Gob&ohoma bo~ci caught by 0. 5 ? m...

McAden, David Charles

2012-06-07

245

Microbial Challenge Testing of Single Liquid Cathode Feed Water Electrolysis Cells for the International Space Station (ISS) Oxygen Generator Assembly (OGA)  

NASA Technical Reports Server (NTRS)

The International Space Station (ISS) Oxygen Generator Assembly (OGA) operational performance may be adversely impacted by microbiological growth and biofilm formation over the electrolysis cell membranes. Biofilms could hinder the transport of water from the bulk fluid stream to the membranes and increase the cell concentration overpotential resulting in higher cell voltages and a shorter cell life. A microbial challenge test was performed on duplicate single liquid-cathode feed water electrolysis cells to evaluate operational performance with increasing levels of a mixture of five bacteria isolated from ISS and Space Shuttle potable water systems. Baseline performance of the single water electrolysis cells was determined for approximately one month with deionized water. Monthly performance was also determined following each inoculation of the feed tank with 100, 1000, 10,000 and 100,000 cells/ml of the mixed suspension of test bacteria. Water samples from the feed tank and recirculating water loops for each cell were periodically analyzed for enumeration and speciation of bacteria and total organic carbon. While initially a concern, this test program has demonstrated that the performance of the electrolysis cell is not adversely impacted by feed water containing the five species of bacteria tested at a concentration measured as high as 1,000,000 colony forming units (CFU)/ml. This paper presents the methodologies used in the conduct of this test program along with the performance test results at each level of bacteria concentration.

Roy, Robert J.; Wilson, Mark E.; Diderich, Greg S.; Steele, John W.

2011-01-01

246

The Current Status of the Space Station Biological Research Project: a Core Facility Enabling Multi-Generational Studies under Slectable Gravity Levels  

NASA Astrophysics Data System (ADS)

The Space Station Biological Research Project (SSBRP) has developed a new plan which greatly reduces the development costs required to complete the facility. This new plan retains core capabilities while allowing for future growth. The most important piece of equipment required for quality biological research, the 2.5 meter diameter centrifuge capable of accommodating research specimen habitats at simulated gravity levels ranging from microgravity to 2.0 g, is being developed by NASDA, the Japanese space agency, for the SSBRP. This is scheduled for flight to the ISS in 2007. The project is also developing a multi-purpose incubator, an automated cell culture unit, and two microgravity habitat holding racks, currently scheduled for launch in 2005. In addition the Canadian Space Agency is developing for the project an insect habitat, which houses Drosophila melanogaster, and provides an internal centrifuge for 1 g controls. NASDA is also developing for the project a glovebox for the contained manipulation and analysis of biological specimens, scheduled for launch in 2006. This core facility will allow for experimentation on small plants (Arabidopsis species), nematode worms (C. elegans), fruit flies (Drosophila melanogaster), and a variety of microorganisms, bacteria, yeast, and mammalian cells. We propose a plan for early utilization which focuses on surveys of changes in gene expression and protein structure due to the space flight environment. In the future, the project is looking to continue development of a rodent habitat and a plant habitat that can be accommodated on the 2.5 meter centrifuge. By utilizing the early phases of the ISS to broadly answer what changes occur at the genetic and protein level of cells and organisms exposed to the ISS low earth orbit environment, we can generate interest for future experiments when the ISS capabilities allow for direct manipulation and intervention of experiments. The ISS continues to hold promise for high quality, long term, multi-generational biological studies with large sample sizes and appropriate controls.

Santos, O.

2002-01-01

247

Effect of venting on crevice cleaning for PWR steam generators. Final report  

Microsoft Academic Search

Process parameters affecting chemical cleaning of tube-to-support plate crevice annuli in dented PWR steam generators were investigated. A simple procedural modification to the generic SGOG crevice cleaning process was identified which assures that support plate crevices can be consistently cleaned within reasonable guidelines for solvent contact time (under test conditions). The key parameter affecting crevice cleaning rates was identified as

J. M. Parke; D. Schneidmiller; P. M. Olson

1986-01-01

248

NDE and mechanical removal of sludge in PWR steam generators: Volume 2, Vendor practices: Final report  

Microsoft Academic Search

A study was made to identify the needs of utilities for detecting, measuring, and mechanically removing sludge and related corrosion products from PWR steam generators, both recirculating U-tube and once through designs. The study determining, from the utility-user viewpoint, how well these needs are being met by currently available technology; identified opportunities for improvement; and made recommendations for research efforts

C. C. Kidd; T. D. Scharton; R. B. Spencer; G. B. Taylor; D. R. Stewart; M. J. Gallagher; L. E. Johnson; M. A. Sapia; L. J. Edwards; M. L. Dashukewich

1988-01-01

249

Vibration and wear in steam generator tubes following chemical cleaning. Final report. Volume 2  

Microsoft Academic Search

The buildup of magnetite in the steam generators of some pressurized water reactors (PWRs) has led operators to propose chemical cleaning to remove this product. In some cases, the volume of magnetite formed by the corrosion of the carbon steel has been sufficient to cause ''denting'' or reduction of the outer diameter of the tubes where they pass through the

W. I. Enderlin; D. E. Fitzsimmons

1986-01-01

250

Manual on chemical cleaning of fossil-fueled steam generation equipment. Final report  

Microsoft Academic Search

Periodic chemical cleaning to remove deposits from the heat exchange surfaces of steam generator equipment is mandatory to ensure the desired performance and availability of the equipment. Although chemical cleaning is effective, it is neither risk free nor simple. The objective of this project has been to develop a document that: presents methods and materials currently used to chemically clean

E. C. Wackenhuth; J. P. Engle; H. C. Crutchfield; J. W. Siegmund; W. E. Chesney; N. B. Miller

1984-01-01

251

Study of effect of load management on generating-system reliability. Final report  

Microsoft Academic Search

This report describes the effects that load shape changes caused by load management will have on selected reliability indexes - expected number of hours of generating capacity deficiency, expected unserved energy, frequency of capacity deficiency events, and the expected duration of capacity deficiencies. Results calculated with the new OPCON model are compared with results from two other, more conventional models

A. D. Patton; C. Singh

1984-01-01

252

Effect of operating considerations on reliability indices used for generation planning. Final report  

Microsoft Academic Search

Interest presently exists in examining the effects of system operating policies and constraints such as unit start-up times and start-up failures and flexibility to postpone outages on reliability indices used for generation planning. This interest stems from a desire to compute reliability indices that agree closely with actual system reliability performance and to evaluate the effect of different system operating

A. D. Patton; G. L. Hogg

1979-01-01

253

Development of a Second Generation Concentrating Tracking Solar Collector. Final Report.  

National Technical Information Service (NTIS)

Results are presented of testing done on the Second Generation Concentrating Tracking Solar Collector. This includes testing of both the single tube collector shown in Figure 1 and the 4' x 8' collector shown in Figure 2. The testing was performed between...

1980-01-01

254

Evaluation of discrepancies in assembly cross-section generator codes, Volume 2: Final report  

SciTech Connect

The capabilities of utility reactor analysis technical staffs have increased significantly over the past five to ten years. Utilities utilize different cross section generators (EPRI-CELL, CPM, CASMO), different versions of these generators and different libraries in the generators, to produce input to different nodal codes. Phase I of this project utilized available data from utility calculations to identify the areas of differences in calculated results and to make an initial assessment of the potential impact and/or consequence of these differences. Phase II of this project investigated these differences via a consortium of utilities performing calculations for pin cells and multi-pin cells using controlled input data and options. The Phase II goal was to quantify differences and to determine if the differences were due to cross section library, cross section code methodology or the procedure for utilizing a code. This investigation has shown that significantly different results are obtained from the cross section generator codes/libraries for K/infinity/ vs enrichment, cold (68/degree/F) K/infinity/, K/infinity/ vs exposure, Doppler worth, burnable poison worth vs exposure (both Gd and BPRs), and control rod worths. The codes/libraries give similar results for soluble boron worth, xenon worth, and temperature history effect.

Fisher, J.R.; Grow, R.L.; Hodges, D.; Rapp, J.S.; Smolinske, K.M.

1989-07-01

255

Evaluation of discrepancies in assembly cross-section generator codes: Volume 1: Final report  

SciTech Connect

The capabilities of utility reactor analysis technical staffs have increased significantly over the past five to ten years. Utilities utilize different cross section generators (EPRI-CELL, CPM, CASMO), different versions of these generators and different libraries in the generators, to produce input to different nodal codes. Phase I of this project utilized available data from utility calculations to identify the areas of differences in calculated results and to make an initial assessment of the potential impact and/or consequence of these differences. Phase II of this project investigated these differences via a consortium of utilities performing calculations for pin cells and multi-cells using controlled input data and options. The Phase II goal was to quantify differences and to determine if the differences were due to cross section library, cross section code methodology or the procedure for utilizing a code. This investigation has shown that significantly different results are obtained from the cross section generator codes/libraries for K/infinity/ vs enrichment, cold (68/degree/F) K/infinity/, K/infinity/ vs exposure, Doppler worth, burnable poison worth vs exposure (both Gd and BPRs), and control rod worths. The codes/libraries give similar results for soluble boron worth, xenon worth, void worth, and temperature history effect. 4 refs., 13 figs., 16 tabs.

Fisher, J.R.; Grow, R.L.; Hodges, D.; Rapp, J.S.; Smolinske, K.M.

1989-07-01

256

Assessment of a 6500Btu\\/kWh heat rate dispersed generator. Final report  

Microsoft Academic Search

The purpose of this study was to assess the technical and economic feasibility of an efficient, modular and environmentally acceptable dispersed generator based on internal reforming molten carbonate fuel cell (IR-MCFC) technology. The IR-MCFC processes and consumes fuels such as natural gas within the fuel cell itself, eliminating the need for external fuel processing reactors, associated heat exchangers and other

1983-01-01

257

Innovative technologies for full utilization of ash generated at coal-fired thermal power stations for producing alumina and construction materials  

NASA Astrophysics Data System (ADS)

The possibility of full 100% usage of ash from coal-fired thermal power stations for producing raw materials for the cement and alumina industries is considered, and it is shown that comprehensive processing of ash from coal-fired thermal power stations is required for this purpose.

Delitsyn, L. M.; Vlasov, A. S.; Borodina, T. I.; Ezhova, N. N.; Sudareva, S. V.

2013-04-01

258

International workshop on final focus and interaction regions of next generation linear colliders: Proceedings  

SciTech Connect

The first day of the workshop was devoted to four plenary issues'' talks, one for each working group: Beam-Beam Interaction, Detector, Hardware, and Optical Design. The last day was devoted to plenary talks summarizing the activities of the working groups. Each of the three remaining days there,was a short morning plenary devoted to a brief summary of the preceding day and an announcement of planned working group discussions for that day. The transparencies for the issues'' and summary'' talks are included in this volume, along with some remarks from the working group chairpersons. Very briefly, the beam-beam group continued to address the quantitative study of QED induced backgrounds, and attempted to better understand the nature and prevalence of QCD millijets. The detector group attempted to identify the impact on masking and detector design of the beam-beam backgrounds, the synchrotron radiation induced backgrounds from beam halos and muon backgrounds produced primarily in collimators. Nanosecond timing elements needed in conjunction with multi-bunch operation were discussed. The hardware group addressed the problem of magnet design and support, especially the final doublet magnets suspended within the detector environment, and instrumentation issues, such as high resolution beam position monitors. The optics group discussed new final focus system ideas, collimator design, and improvement of beamline tolerances. If you were not here to participate, we hope that this volume will help you in your orientation to these problems.

Not Available

1992-01-01

259

International workshop on final focus and interaction regions of next generation linear colliders: Proceedings  

SciTech Connect

The first day of the workshop was devoted to four plenary ``issues`` talks, one for each working group: Beam-Beam Interaction, Detector, Hardware, and Optical Design. The last day was devoted to plenary talks summarizing the activities of the working groups. Each of the three remaining days there,was a short morning plenary devoted to a brief summary of the preceding day and an announcement of planned working group discussions for that day. The transparencies for the ``issues`` and ``summary`` talks are included in this volume, along with some remarks from the working group chairpersons. Very briefly, the beam-beam group continued to address the quantitative study of QED induced backgrounds, and attempted to better understand the nature and prevalence of QCD millijets. The detector group attempted to identify the impact on masking and detector design of the beam-beam backgrounds, the synchrotron radiation induced backgrounds from beam halos and muon backgrounds produced primarily in collimators. Nanosecond timing elements needed in conjunction with multi-bunch operation were discussed. The hardware group addressed the problem of magnet design and support, especially the final doublet magnets suspended within the detector environment, and instrumentation issues, such as high resolution beam position monitors. The optics group discussed new final focus system ideas, collimator design, and improvement of beamline tolerances. If you were not here to participate, we hope that this volume will help you in your orientation to these problems.

Not Available

1992-11-01

260

Evaluation of field applications of boric acid in PWR steam generators. Final report  

SciTech Connect

Secondary system chemistry and steam generator denting progression data for seven pressurized water reactors were reviewed in an attempt to evaluate the effects of boric acid addition on denting. Although laboratory data were conclusive relative to the beneficial effect of boric acid, data from KoRi 1, Indian Point 2, and Indian Point 3, where boric acid was employed for extensive periods, did not allow a similar conclusion to be developed for operating plants.

Pearl, W.L.; Sawochka, S.G.; Choi, S.S.

1984-03-01

261

Solar generation of industrial steam. Final report of Innovative Research Program Subtask, December 1977September 1978  

Microsoft Academic Search

The objective of this study was to identify promising schemes for the collection and storage of solar energy for subsequent generation of moderate pressure industrial steam (200°C to 250°C) (392°F to 482°F). The thrust of the present study was therefore toward those lower temperature schemes which would allow potentially better economics than high temperature schemes plus substantial energy storage. Comparison

Lenz

1978-01-01

262

Wind-assist irrigation and off-season power generation. Final report  

SciTech Connect

A wind turbine is mechanically connected to an existing irrigation well through an overrunning clutch. In the wind assist mode, the wind turbine assists or supplements the power from the electric motor. If enough power is available from the wind turbine, it is possible to drive the induction motor past synchronous speed and the motor becomes a generator and power is subsequently fed back into the utility line. For this installation this occurs at a windspeed of around 26 mph in the wind assist mode. Cut-in windspeed is around 12 mph. When irrigation water is not needed, the pump is disconnected from the electric motor and the wind turbine drives the electric motor solely as a generator and power is fed back into the utility line. Now the cut-in windspeed is around 14 mph. The addition of the electric generation mode allows the farmer to maximize the return on this investment because the wind turbine can be used whenever the wind is blowing. As with any development project, a number of delays were experienced in the construction and testing of the prototype wind turbine and some repairs were needed during the shakedown phase following installation at the site. However, the cumulative data collection system is adequate and the system will be operated over a year to obtain the data needed. The system is presently operating as planned. From June 5 through October 2 the wind turbine operated for 1140 hours of which 280 hours were in the electric generation mode and 860 hours in the wind assist mode. The maximum power obtained has been around 22 kW when the unit was pumping water and fed power into the utility line.

Gilmore, E.; Nelson, V.; Starcher, K.; Barieau, R.E.

1980-01-01

263

Transition metal catalysis in the generation of petroleum and natural gas. Final report  

SciTech Connect

This project originated on the premise that natural gas could be formed catalytically in the earth rather than thermally as commonly believed. The intention was to test this hypothetical view and to explore generally the role of sedimentary metals in the generation of light hydrocarbons (C1 - C9). We showed the metalliferous source rocks are indeed catalytic in the generation of natural gas. Various metal compounds in the pure state show the same levels of catalytic activity as sedimentary rocks and the products are identical. Nickel is particularly active among the early transition metals and is projected to remain catalytically robust at all stages of catagenesis. Nickel oxide promotes the formation of n-alkanes in addition to natural gas (NG), demonstrating the full scope of the hypothetical catalytic process: The composition of catalytic gas duplicates the entire range of natural gas, from so-called wet gas to dry gas (60 to 95+ wt % methane), while gas generated thermally is consistently depleted in methane (10 to 60 wt % methane). These results support the view that metal catalysis is a major pathway through which natural gas is formed in the earth.

Mango, F.D.

1997-01-21

264

Development of an Immersive Environment to Aid in Automatic Mesh Generation LDRD Final Report  

SciTech Connect

The purpose of this work was to explore the use of immersive technologies, such as those used in synthetic environments (commordy referred to as virtual realily, or VR), in enhancing the mesh- generation process for 3-dimensional (3D) engineering models. This work was motivated by the fact that automatic mesh generation systems are still imperfect - meshing algorithms, particularly in 3D, are sometimes unable to construct a mesh to completion, or they may produce anomalies or undesirable complexities in the resulting mesh. It is important that analysts and meshing code developers be able to study their meshes effectively in order to understand the topology and qualily of their meshes. We have implemented prototype capabilities that enable such exploration of meshes in a highly visual and intuitive manner. Since many applications are making use of increasingly large meshes, we have also investigated approaches to handle large meshes while maintaining interactive response. Ideally, it would also be possible to interact with the meshing process, allowing interactive feedback which corrects problems and/or somehow enables proper completion of the meshing process. We have implemented some functionality towards this end -- in doing so, we have explored software architectures that support such an interactive meshing process. This work has incorporated existing technologies developed at SandiaNational Laboratories, including the CUBIT mesh generation system, and the EIGEN/VR (previously known as MUSE) and FLIGHT systems, which allow applications to make use of immersive technologies and advanced human computer interfaces. 1

Pavlakos, Constantine J.

1998-10-01

265

Radiolytic and radiolytically induced generation of gases from synthetic wastes. Final report  

SciTech Connect

To better understand the processes leading to the generation and release of gases from waste tanks, the authors studied the radiolytic and thermal generation of H{sub 2}, N{sub 2}O, N{sub 2}, O{sub 2}, and NH{sub 3} in nonradioactive waste simulant solutions and slurries. The radiolytic sources for H{sub 2} are e{sub aq}{sup {minus}} and its predecessors and H atoms. Radiolysis of the water generates some H{sub 2} and an additional amount comes from the hydrogen abstraction reaction H + RH{yields}H{sub 2}+R{center_dot}. Nitrate scavenges e{sub aq}{sup {minus}} and its predecessors whereas nitrite is the major H-atom scavenger. Computer modeling shows that if [NO{sub 3}{sup {minus}}] is above 0.5 M, and [NO{sub 2}{sup {minus}}] is above 2M, the addition of other scavengers will have little effect on the yield of H{sub 2}. In the presence of organic molecules O{sub 2} is efficiently destroyed. Small yields of ammonia were measured and the yields increase linearly with dose. The nitrogen in NH{sub 3} comes from organic chelators. The yields of gases in solution depend only weakly on temperature. The rate of thermal generation of gases increases upon preirradiation, reaches a maximum, and then declines. The known radiolytic degradation products of chelators, NTA, IDA, glycolate, glyoxylate, formaldehyde, formate, oxalate, and hydroxylainine were examined for their roles in the thermal generation of H{sub 2} and N{sub 2}O at 60{degrees}C. In solution or slurry only radiolytically produced Pd intermediate strongly retains H{sub 2}. Radiolytic yields of N{sub 2}O are strongly reduced by Cr(III). In irradiated slurry, loose and tight gas were found. The loose gas could be removed by bubbling from the slurry, but the tight gas could be released only by dissolution of the slurry.

Meisel, D.; Jonah, C.D.; Kapoor, S.; Matheson, M.S.; Sauer, M.C. Jr.

1993-10-01

266

Final Report---Next-Generation Solvers for Mixed-Integer Nonlinear Programs: Structure, Search, and Implementation  

SciTech Connect

The mathematical modeling of systems often requires the use of both nonlinear and discrete components. Problems involving both discrete and nonlinear components are known as mixed-integer nonlinear programs (MINLPs) and are among the most challenging computational optimization problems. This research project added to the understanding of this area by making a number of fundamental advances. First, the work demonstrated many novel, strong, tractable relaxations designed to deal with non-convexities arising in mathematical formulation. Second, the research implemented the ideas in software that is available to the public. Finally, the work demonstrated the importance of these ideas on practical applications and disseminated the work through scholarly journals, survey publications, and conference presentations.

Linderoth, Jeff T. [University of Wisconsin-Madison] [University of Wisconsin-Madison; Luedtke, James R. [University of Wisconsin-Madison] [University of Wisconsin-Madison

2013-05-30

267

UMTS Network Stations  

NASA Astrophysics Data System (ADS)

The weakness of small island electrical grids implies a handicap for the electrical generation with renewable energy sources. With the intention of maximizing the installation of photovoltaic generators in the Canary Islands, arises the need to develop a solar forecasting system that allows knowing in advance the amount of PV generated electricity that will be going into the grid, from the installed PV power plants installed in the island. The forecasting tools need to get feedback from real weather data in "real time" from remote weather stations. Nevertheless, the transference of this data to the calculation computer servers is very complicated with the old point to point telecommunication systems that, neither allow the transfer of data from several remote weather stations simultaneously nor high frequency of sampling of weather parameters due to slowness of the connection. This one project has developed a telecommunications infrastructure that allows sensorizadas remote stations, to send data of its sensors, once every minute and simultaneously, to the calculation server running the solar forecasting numerical models. For it, the Canary Islands Institute of Technology has added a sophisticated communications network to its 30 weather stations measuring irradiation at strategic sites, areas with high penetration of photovoltaic generation or that have potential to host in the future photovoltaic power plants connected to the grid. In each one of the stations, irradiance and temperature measurement instruments have been installed, over inclined silicon cell, global radiation on horizontal surface and room temperature. Mobile telephone devices have been installed and programmed in each one of the weather stations, which allow the transfer of their data taking advantage of the UMTS service offered by the local telephone operator. Every minute the computer server running the numerical weather forecasting models receives data inputs from 120 instruments distributed over the 30 radiometric stations. As a the result, currently it exist a stable, flexible, safe and economic infrastructure of radiometric stations and telecommunications that allows, on the one hand, to have data in real time from all 30 remote weather stations, and on the other hand allows to communicate with them in order to reprogram them and to carry out maintenance works.

Hernandez, C.

2010-09-01

268

Wind-assist irrigation and electrical-power generation. Final report  

SciTech Connect

A wind turbine is mechanically connected to an existing irrigation well. The system can be operated in three modes: (1) electric motor driving the water turbine pump. (2) Wind assist mode where wind turbine supplements power from the utility line to drive the water turbine pump. At wind speeds of 12 m/s and greater, the wind turbine can pump water (15 kW) and feed power (10 kW) back into the utility grid at the same time. (3) Electrical generation mode where the water pump is disconnected and all power is fed back to the utility grid. The concept is technically viable as the mechanical connection allows for a smooth transfer of power in parallel with an existing power source. Minor problems caused delays and major problems of two rotor failures precluded enough operation time to obtain a good estimation of the economics. Because reliability and maintenance are difficult problems with prototype or limited production wind energy conversion systems, the expense of the demonstration project has exceeded the estimated cost by a large amount. During the two year period, the wind turbines were operational 1400 hours and generated 2540 kWh of energy. The dollar value of the energy was only $140. Major problems have been experienced with the wind turbine during the entire project. The original prototype lost a blade in October 1979. Another prototype was developed which had a larger diameter and a microprocessor control system at ground level. A Wingen 2 was installed in May 1980; however, problems with its control system prevented shakedown testing until July. In March 1981, another major rotor failure occurred. Instead of repairing the wind turbine, Wind Engineering agreed to install their third generation design, a completely new machine for $5000.

Nelson, V.; Starcher, K.

1982-07-13

269

Search for first generation leptoquark pair production in the electron + missing energy + jets final state  

SciTech Connect

We present a search for the pair production of first generation scalar leptoquarks (LQ) in data corresponding to an integrated luminosity of 5.4 fb-1 collected with the D0 detector at the Fermilab Tevatron Collider in pp? collisions at ?s = 1.96 TeV. In the channel LQLQ ? eq?eq?, where q,q? are u or d quarks, no significant excess of data over background is observed, and we set a 95% C.L. lower limit of 326 GeV on the leptoquark mass, assuming equal probabilities of leptoquark decays to eq and ?eq?.

Abazov, Victor Mukhamedovich; Abbott, Braden Keim; Acharya, Bannanje Sripath; Adams, Mark Raymond; Adams, Todd; Alexeev, Guennadi D.; Alkhazov, Georgiy D.; Alton, Andrew K.; Alverson, George O.; Alves, Gilvan Augusto; Aoki, Masato

2011-10-11

270

Search for first generation leptoquark pair production in the electron + missing energy + jets final state  

We present a search for the pair production of first generation scalar leptoquarks (LQ) in data corresponding to an integrated luminosity of 5.4 fb-1 collected with the D0 detector at the Fermilab Tevatron Collider in pp? collisions at ?s = 1.96 TeV. In the channel LQLQ ? eq?eq?, where q,q? are u or d quarks, no significant excess of data over background is observed, and we set a 95% C.L. lower limit of 326 GeV on the leptoquark mass, assuming equal probabilities of leptoquark decays to eq and ?eq?.

Abazov, Victor Mukhamedovich; Abbott, Braden Keim; Acharya, Bannanje Sripath; Adams, Mark Raymond; Adams, Todd; Alexeev, Guennadi D.; Alkhazov, Georgiy D.; Alton, Andrew K.; Alverson, George O.; Alves, Gilvan Augusto; Aoki, Masato

2011-10-11

271

Impact of makeup water system performance on PWR steam generator corrosion. Final report  

SciTech Connect

The objectives of this project were to review makeup system design and performance and assess the possible relation of pressurized water reactor (PWR) steam generator corrosion to makeup water impurity ingress at fresh water sites. Project results indicated that makeup water transport of most ionic impurities can be expected to have a significant impact on secondary cycle chemistry only if condenser inleakage and other sources of impurities are maintained at very low levels. Since makeup water oxygen control techniques at most study plants were not consistent with state-of-the-art technology, oxygen input to the cycle via makeup can be significant. Leakage of colloidal silica and organics through makeup water systems can be expected to control blowdown silica levels and organic levels throughout the cycle at many plants. Attempts to correlate makeup water quality to steam generator corrosion observations were unsuccessful since (1) other impurity sources were significant compared to makeup at most study plants, (2) many variables are involved in the corrosion process, and (3) in the case of IGA, the variables have not been clearly established. However, in some situations makeup water can be a significant source of contaminants suspected to lead to both IGA and denting.

Bell, M.J.; Pearl, W.L.; Sawochka, S.G.; Smith, L.A.

1985-06-01

272

Specification for strontium-90 500-watt(e) radioisotopic thermoelectric generator. Final report  

SciTech Connect

A conceptual design for a demonstration 500-watt(e) radioisotopic thermoelectric generator has been created for the Department of Energy. The design effort was divided into two tasks, viz., create a design specification for a capsule strength member that utilizes a standard Strontium-90 fluoride-filled WESF inner liner, and create a conceptual design for a 500-watt(e) RTG. Both tasks have been accomplished. The strength-member specification was designed to survive an external pressure of 24,500 psi and meet the requirements of special-form radioisotope heat sources. Therefore the capsule can, if desired, be licensed for domestic and international transport. The design for the RTG features a radioisotopic heat source, an array of nine capsules in a tungsten biological shield, four current-technology series-connected thermoelectric-conversion modules, low-conductivity thermal insulation, and a passive finned-housing radiator for waste-heat dissipation. The preliminary RTG specification formulated previous to contract award has been met or exceeded. The power source will generate the required power for the required service period at 28 volts dc with a conversion efficiency of 8%, provided the existing in-pool capsules at WESF meet the assumed thermal-inventory requirements.

Hammel, T.; Himes, J.; Lieberman, A.; McGrew, J.; Owings, D.; Schumann, F.

1983-04-01

273

Early utility experience with wind power generation. Volume 1. Summary report. Final report  

SciTech Connect

This report is one of three presenting the results of EPRI Research Project 1590-1, Evaluation of Electric Utility Experience with Wind Power Generation. The objective of this project was to develop an improved understanding of wind power generation, in particular the process a utility must undergo to initiate and carry out a wind turbine project. The primary tasks of RP1590-1 were to document and evaluate the experience of two utilities with megawatt-scale wind turbine installations from project inception to the first rotation of the wind turbine. This summary report presents in brief form the experiences of two utilities, the Pacific Gas and Electric Company and the Bonneville Power Administration, with wind turbine projects at Solano County, California and Goodnoe Hills, Washington, respectively. All documents and reports pertaining to the experiences with the wind turbine projects were reviewed and excerpts made of the highlights. Gaps in the documentation were filled by talking with appropriate people. Site visits were conducted to monitor current activity. The information obtained was evaluated for its generic relevance and benefit to other utilities. Condensed descriptions of the projects, a comparison of the projects, and highlights of the utilities' experiences are presented. Some of the insights which might benefit other utility wind programs are identified.

McCabe, T.; Henry, G.; Tennis, M.; Goldenblatt, M.

1984-01-01

274

Final LDRD report : infrared detection and power generation using self-assembled quantum dots.  

SciTech Connect

Alternative solutions are desired for mid-wavelength and long-wavelength infrared radiation detection and imaging arrays. We have investigated quantum dot infrared photodetectors (QDIPs) as a possible solution for long-wavelength infrared (8 to 12 {mu}m) radiation sensing. This document provides a summary for work done under the LDRD 'Infrared Detection and Power Generation Using Self-Assembled Quantum Dots'. Under this LDRD, we have developed QDIP sensors and made efforts to improve these devices. While the sensors fabricated show good responsivity at 80 K, their detectivity is limited by high noise current. Following efforts concentrated on how to reduce or eliminate this problem, but with no clear path was identified to the desired performance improvements.

Cederberg, Jeffrey George; Ellis, Robert; Shaner, Eric Arthur

2008-02-01

275

Proposed Tenaska Washington II Generation Project : Final Environmental Impact Statement. Volume 2: Public Involvement.  

SciTech Connect

In regard to the proposed Tenaska Washington II Generation Project, the goal of the Bonneville Power Administration`s (BPA) Environmental Impact Statement (EIS) public involvement process is to determine the issues to be examined and pertinent analyses to be conducted and to solicit comments on the content and quality of information presented in the Draft Environmental Impact Statement (DEIS). Comments and questions are solicited from the public and government agencies during the scoping process and during the comment period and public hearing on the DEIS, to find out what is of most concern to them. The end product of the public involvement process is the Comment Report which follows in part of this volume on Public Involvement.

United States. Bonneville Power Administration.

1994-01-01

276

Public health assessment for Treasure Island Naval Station, Hunters Point Annex, San Francisco, San Francisco County, California, Region 9. Cerclis No. CA1170090087. Final report  

SciTech Connect

Naval Station Treasure Island, Hunters Point Annex (HPA), an inactive Naval shipyard located on a peninsula in the San Francisco Bay, San Francisco, California, was listed for base closure in 1990. Metals, pesticides, radium-226, polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), volatile organic compounds, semivolatile organic compounds, petroleum products, and asbestos have been found in various media such as soil, groundwater, surface water, air, and sediments. Navy contractors have identified 58 HPA areas where there may be contamination; investigations at these areas are ongoing.

Not Available

1994-09-30

277

Conceptual design of transfer station materials and energy recovery facility, City of Berkeley, Solid Waste Management Center. Final report: executive summary  

SciTech Connect

A conceptual design was developed for the Berkeley Solid Waste Management Center incorporating modular combustion units. Markets for recovered materials and energy were confirmed in the study. Additional work briefly discussed covered an analysis of the waste stream; assessment of the front-end processing technology; an identification of regulatory agency requirements and environmental constraints; preparation of preliminary design and budget cost estimates for the transfer station/modular combustion plant; development of financing and procurement arrangements; identification of project risks; and establishment of an implementation master plan.

Not Available

1980-01-01

278

Baseline and verification tests of the Electric Vehicle Associates' Current Fare Station Wagon. Final test report, 27 March 1980-6 November 1981  

SciTech Connect

The EVA Current Fare Station Wagon, an electric vehicle, was tested at MERADCOM as part of a Department of Energy project to characterize the state-of-the-art of electric vehicles. The current Fare Wagon was manufactured in Cleveland, Ohio by Electric Vehicle Associates' Incorporated. It is powered by 22 6-V lead-acid batteries driving a 30-hp d.c. series motor through an SCR controller. The motor drives the rear wheels through a manually operated 4-speed transmission. Regenerative braking was provided.

Dowgiallo, E.J. Jr; Chapman, R.D.

1983-01-01

279

35. SITE BUILDING 004 ELECTRIC POWER STATION CONTROL ...  

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

35. SITE BUILDING 004 - ELECTRIC POWER STATION - CONTROL ROOM OF ELECTRIC POWER STATION WITH DIESEL ENGINE POWERED ELECTRIC GENERATION EQUIPMENT IN BACKGROUND. - Cape Cod Air Station, Technical Facility-Scanner Building & Power Plant, Massachusetts Military Reservation, Sandwich, Barnstable County, MA

280

High magnetic field MHD generator program. Final report, July 1, 1976-December 31, 1979  

SciTech Connect

A theoretical and experimental program was undertaken to investigate MHD channel phenomena which are important at high magnetic fields. The areas studied were inhomogeneity effects, boundary layers, Hall field breakdown and electrode configuration and current concentrations. In addition, a program was undertaken to study steady-state combustion disk and linear channels in an existing 6 Tesla magnet of small dimensions. The structure of the inhomogeneities in the Stanford M-2 was characterized and compared with theoretical results from a linearized perturbation analysis. General agreement was obtained and the analysis was used to compute stability regions for large size generators. The Faraday electrical connection was found to be more stable than the Hall or diagonal wall connections. Boundary layer profile measurements were compared with theoretical calculations with good agreement. Extrapolation of the calculations to pilot scale MHD channels indicates that Hartmann effects are important in the analysis of the sidewall, and Joule heating is important in calculating heat transfer and voltage drops for the electrode wall. Hall field breakdown was shown to occur both in the plasma and through the interelectrode insulator with the insulator breakdown threshold voltage lower than the plasma value. The threshold voltage was shown to depend on the interelectrode gap but was relatively independent of plasma conditions. Experiments were performed at 5.5 Tesla with both disk and linear MHD channels.

Eustis, R. H.; Kruger, C. H.; Mitchner, M.; Self, S. A.; Koester, J. K.; Nakamura, T.

1980-04-01

281

Initial field trials of the site characterization and analysis penetrometer system (SCAPS). Reconnaissance of Jacksonville Naval Air Station waste oil and solvents disposal site. Final report  

SciTech Connect

At the request of the Naval Facilities Engineering Command (NAVFAC), Southern Division, Charleston, SC, the U.S. Army Engineer Waterways Experiment Station (WES) conducted the initial field trial of the Site Characterization and Analysis Penetrometer System (SCAPS) at Jacksonville Naval Air Station (NAS), Jacksonville FL. This work was carried out by a field crew consisting of personnel from WES and the Naval Ocean Systems Center during the period of 16 July 1990 to 14 August 1990. The SCAPS investigation at the Jacksonville NAS has two primary objectives: (a) to provide data that could be useful in formulating remediation plans for the facility and (b) to provide for the initial field trial of the SCAPS currently under development by WES for the U.S. Army Toxic and Hazardous Materials Agency (USATHAMA), now the U.S. Army Environmental Center. The original concepts for the SCAPS was to develop an integrated site screening characterization system whose capabilities would include (a) surface mapping, (b) geophysical surveys using magnetic, induced electromagnetic, and radar instruments, (c) measurements of soil strength, soil electrical resistivity, and laser-induced soil fluorometry Cone penetrometer, Site Characterization and Analysis Laser Induced Fluorescence(LIF), Penetrometer System(SCAPS) POL Contamination, using screening instrumentation mounted in a soil penetrometer, (d) soil and fluid samplers, and (e) computerized data acquisition, interpretation, and visualization. The goal of the SCAPS program is to provide detailed, rapid, and cost-effective surface and subsurface data for input to site assessment/remediation efforts.

Cooper, S.S.; Douglas, D.H.; Sharp, M.K.; Olsen, R.A.; Comes, G.D.

1993-12-01

282

Space Station - early  

NASA Technical Reports Server (NTRS)

'North American selected this space station design in 1962 for final systems analysis. Incorporating all the advantages of a wheel configuration, it had rigid cylindrical modules arranged in a hexagonal shape with three rigid telescoping spokes. This configuration eliminated the need for exposed flexible fabric.' Published in James R. Hansen, Spaceflight Revolution: NASA Langley Research Center From Sputnik to Apollo, NASA SP-4308, p. 284.

2002-01-01

283

Unique wood-fired system for domestic hot water generation. Final report  

SciTech Connect

This project has proven that it is possible to construct in a home workshop situation, a simple, durable, reasonably modest-cost stove and heat-exchanger which will conveniently generate wood-fueled hot water year-round to meet household needs and daily demand schedules. Included with this report are the illustrations, descriptions, and details which should make it possible for someone with the proper skills to construct their own system. However, before rushing out to buy copper and steel, it would be important for anyone to consider the costs, benefits, and possible alternatives available. Whatever the source of hot water, conservation is a major way of saving energy and money. Some major ways of conserving are to add extra insulation to the water heater tank, turning the heating elements down to 115 to 120/sup 0/F thermostat settings, using a timer to turn on the elements only during the time of day that hot water will be needed, using warm or cold water for laundry, and using flow-restricting shower heads. These measures can save up to 50% of the energy previously used, with very little investment. Total costs for the system using an existing water heater for the storage tank could range from $200 to over $1000. Assuming free firewood, at current utility prices this would make a pay-back period for original investment of only 8 months to 3 years 4 months for the average family. Considering these costs, one might reasonably wonder if it would be worthwhile to purchase and use a wood-fired system which would save only a dollar or less per daily use. This would amount to a rate of savings pay equal to no more than the minimum wage for the time involved.

Not Available

1981-09-01

284

Regional assessments of the hydrocarbon generation potential of selected North American Proterozoic rock sequences. Final report  

SciTech Connect

Whereas commercial production of Proterozoic-sourced oil and gas has been achieved in a few provinces (basins in the USSR, China and Oman), the potential for Proterozoic exploration targets in various basins in Africa, Asia, Australia and North America has been receiving increased attention. The authors have completed a geochemical survey study of over 500 core and outcrop samples that represent more than one dozen US Middle and Upper Proterozoic sedimentary formations. This included comprehensive sedimentologic/geochemical studies on two depositionally distinct, unmetamorphosed units, the Nonesuch Formation (1.1 Ga lacustrine rift deposit) and the Dripping Spring Quartzite (1.3 Ga marine shelf deposition) and reconnaissance work on samples collected from the Lower (1.2 to 1.3 Ga) Tindir Group in east-central Alaska. The primary objectives of this study were as follows: identify sources rocks by quantification and characterization of constituent organic matter; evaluate what depositional/diagenetic/catagenetic factors may have influenced source rock quality; and evaluate the possibility of previous hydrocarbon generation and migration using general petrologic, geochemical and geologic information. In addition to the primary goals, several contributions to the basic understanding of organic evolution have emerged from this study. These include: tentative confirmation of the occurrence of biomarkers (hopanes) in anhydrous pyrolyzates of kerogen from the Nonesuch Shale; microfossil evidence for eucaryote evolution in the Proterozoic rock record (Dripping Spring Quartzite); and an assessment of factors to be considered when attempting to establish stable isotope secular trends and apply isotope stratigraphy techniques to the Precambrian Era.

Engel, M.H.; Elmore, R.D.

1994-02-24

285

Environmental radionuclide concentrations in the vicinity of the Calvert Cliffs Nuclear Power Plant and the Peach Bottom Atomic Power Station: 1996--1997. Final report  

SciTech Connect

The Maryland Power Plant Research Program monitors concentrations of natural, weapons, and power plant produced radionuclides in environmental samples collected from the Chesapeake Bay in the vicinity of the Calvert Cliffs Nuclear Power Plant (CCNPP) and from the Susquehanna River-Chesapeake Bay system in the vicinity of Peach Bottom Atomic Power Station (PBAPS). The purpose of this monitoring is to determine the fate, transport, and potential effects of power plant-produced radionuclides. This report contains a description of monitoring activities and data collected during the 1996 and 1997 calendar years. Radionuclide concentrations in shellfish, finfish, aquatic vegetation, and sediment were measured using high-resolution gamma spectrometry. Radionuclides in environmental samples originated from natural sources, historic atmospheric weapons testing, and normal operations of CCNPP and PBAPS.

McLean, R.I.; Jones, T.S.

1998-11-20

286

On the existence of debris clouds in the Space Station orbit: Final results of the EuroMir 1995 impact detector  

NASA Technical Reports Server (NTRS)

A flight experiment flown onboard the Mir space station as a part of the Euromir 95 mission is considered. The aim of the experiment was to develop a greater understanding of the effects of the space environment on materials. In addition to the active enumeration of particle impacts and trajectories, the aim was to capture hypervelocity particles for their return to earth. Postflight measurements were performed to determine the flux density, diameters and subsequent effects on various optical thermal control and structural materials. Sensors actively measured the atomic oxygen flux, the contamination depostion and their effects during the mission. Two clouds of small particles were detected during a period of 100 days onboard Mir. It is concluded that the measured momenta of these particles suggests that their size and velocity are such that they cause damage to optics and thermal control surfaces.

Maag, Carl R.; Deshpande, Sunil P.; Johnson, Nicholas L.

1997-01-01

287

Species composition, distribution, and seasonal abundance of macro-zooplankton in intake and discharge areas before and during early operation of the Cedar Bayou generating station  

E-print Network

site. The intake canal was made up of Cedar Bayou, a short man-made canal connecting it to Tabbs Bay and a dredged channel extending into upper Galveston Bay (Figure 1). Heated water was discharged through a 9. 7 km canal into Trinity Bay... proper use of a 0. 5 m plankton net (Figure 2). Stations too shallow for sampling were 3, 6, 9, 12-14, 18-21, and 24 and these are omitted from this report. Tabbs Bay Plankton Stations I and 2 were located in lower Tabbs Bay near the intake canal...

Kalke, Richard D

2012-06-07

288

High speed imager test station  

Microsoft Academic Search

A test station enables the performance of a solid state imager (herein called a focal plane array or FPA) to be determined at high image frame rates. A programmable waveform generator is adapted to generate clock pulses at determinable rates for clock light-induced charges from a FPA. The FPA is mounted on an imager header board for placing the imager

George J. Yates; Kevin L. Albright; Bojan T. Turko

1995-01-01

289

Generations.  

PubMed

Groups naturally promote their strengths and prefer values and rules that give them an identity and an advantage. This shows up as generational tensions across cohorts who share common experiences, including common elders. Dramatic cultural events in America since 1925 can help create an understanding of the differing value structures of the Silents, the Boomers, Gen Xers, and the Millennials. Differences in how these generations see motivation and values, fundamental reality, relations with others, and work are presented, as are some applications of these differences to the dental profession. PMID:16623137

Chambers, David W

2005-01-01

290

Work Element B: 157. Sampling in Fish-Bearing Reaches [Variation in Productivity in Headwater Reaches of the Wenatchee Subbasin], Final Report for PNW Research Station.  

SciTech Connect

We studied variation in productivity in headwater reaches of the Wenatchee subbasin for multiple field seasons with the objective that we could develop methods for monitoring headwater stream conditions at the subcatchment and stream levels, assign a landscape-scale context via the effects of geoclimatic parameters on biological productivity (macroinvertebrates and fish) and use this information to identify how variability in productivity measured in fishless headwaters is transmitted to fish communities in downstream habitats. In 2008, we addressed this final objective. In collaboration with the University of Alaska Fairbanks we found some broad differences in the production of aquatic macroinvertebrates and in fish abundance across categories that combine the effects of climate and management intensity within the subbasin (ecoregions). From a monitoring standpoint, production of benthic macroinvertebrates was not a good predictor of drifting macroinvertebrates and therefore might be a poor predictor of food resources available to fish. Indeed, there is occasionally a correlation between drifting macroinvertebrate abundance and fish abundance which suggests that headwater-derived resources are important. However, fish in the headwaters appeared to be strongly food-limited and there was no evidence that fishless headwaters provided a consistent subsidy to fish in reaches downstream. Fish abundance and population dynamics in first order headwaters may be linked with similar metrics further down the watershed. The relative strength of local dynamics and inputs into productivity may be constrained or augmented by large-scale biogeoclimatic control. Headwater streams are nested within watersheds, which are in turn nested within ecological subregions; thus, we hypothesized that local effects would not necessarily be mutually exclusive from large-scale influence. To test this we examined the density of primarily salmonid fishes at several spatial and temporal scales within a major sub-basin of the Columbia River and associations of density with ecoregion and individuals drainages within the sub-basin. We further examined habitat metrics that show positive associations with fish abundance to see if these relationships varied at larger spatial scales. We examined the extent to which headwater fish density and temporal variation in density were correlated between the headwaters and the main tributaries of the sub-basin, and the influence of ecoregion influence on density differences, particularly at wider temporal scales. Finally, we examined demographic parameters such as growth and emigration to determine whether density-dependence differs among ecoregions or whether responses were more strongly influenced by the demography of the local fish population.

Polivka, Karl; Bennett, Rita L. [USDA Forest Service, Pacific Northwest Research Station, Wenatchee, WA

2009-03-31

291

Conceptual design of transfer station/materials and energy recovery facility, City of Berkeley: Solid Waste Management Center. Volume I. Final report  

SciTech Connect

Work is reported on the project to assess the feasibility and to develop a conceptual design for the Berkeley Solid Waste Management Center. Project summaries, findings, and recommendations are provided in Chapter 1. Chapter 2 covers markets for recovered products (electricity, steam, a ferrous metal, aluminum, corrugated boxes). Chapter 3 details the refuse composition analysis and surveys refuse quantity. Process selection, size reduction, size reduction followed by air classification, trommeling, evaluation of trommeling vs mass burning are discussed in Chapter 4. Pollution control requirements for air quality, water, residues, and noise are cited in Chapter 5. The solid waste management facility conceptualized in Chapter 6 receives, processes, recovers (secondary materials), and converts (to energy) refuse and transfers received refuse to distant landfill in the event of extended downtime of the process and energy conversion equipment. The facility is conceptualized with 50 TPD modular combustion/boiler units, all interconnected, operating on an 8-hour day, 5 days per week. An economic analysis is presented in Chapter 7. Chapter 8 covers agency constraints, permit procedures, and permit time requirements. The final chapter reviews financing alternatives, project risks, and procurement procedures. (MCW)

Not Available

1980-11-01

292

Robotic dissolution station  

SciTech Connect

This invention is comprised of a robotic station for dissolving active metals in acid in an automated fashion. A vessel with cap, containing the active metal is placed onto a shuttle which retracts to a point at which it is directly beneath a cap removing and retaining mechanism. After the cap is removed, a tube carrying an appropriate acid is inserted into the vessel, and the acid is introduced. The structure of the station forms an open hood which is swept of gases generated by the dissolution and the air removed to a remote location for scrubbing. After the reaction is complete, the shuttle extends and the vessel may be removed by a robot arm.

Beugelsdijk, T.J.; Hollen, R.M.; Temer, D.J.; Haggart, R.J.; Erkkila, T.H.

1991-12-31

293

Growth and mortality of two groups of oysters, Crassostrea virginica (GMELIN), subjected to water from a steam-electric generating station  

E-print Network

gallons per year in 1968 to 100 trillion gallons per year in 1980. Numerous studies have been made to assess the biological effects of heated water at operating power stations but few have included oysters and only one of these took place on the Gulf... on exper- imental oysters, asbestos plates and cultch (dead oyster shell) set 40 0 0 0 30 20 Z M IO 00 IO 20 30 40 , CONDUCTIVITY ? THOUSANDS OF MICR OMHO /CM FIG. 4. elationshi between conductivi and salinit at 25 C. 25 out in ponds 6 and 7...

Gilmore, Gill Hobart

2012-06-07

294

EVALUATION AND DEMONSTRATION OF LOW-NOX BURNER SYSTEMS FOR TEOR (THERMALLY ENHANCED OIL RECOVERY) STEAM GENERATORS: FINAL REPORT - FIELD EVALUATION OF COMMERCIAL PROTOTYPE BURNER  

EPA Science Inventory

The report gives results of the final phase of a program to develop, demonstrate, and evaluate a low-NOx burner for crude-oil-fired steam generators used for thermally enhanced oil recovery (TEOR). The burner designed and demonstrated under this program was developed from design ...

295

APSTNG: Associated particle sealed-tube neutron generator studies for arms control. Final report on NN-20 Project ST220  

SciTech Connect

Argonne National Laboratory has performed research and development on the use of Associated Particle Sealed-Tube Neutron Generator (APSTNG) technology for treaty verification and non-proliferation applications, under funding from the DOE Office of Nonproliferation and National Security. Results indicate that this technology has significant potential for nondestructively detecting elemental compositions inside inspected objects or volumes. The final phase of this project was placement of an order for commercial procurement of an advanced sealed tube, with its high-voltage supply and control systems. Procurement specifications reflected lessons learned during the study. The APSTNG interrogates a volume with a continuous 14-MeV neutron flux. Each neutron is emitted coincident with an {open_quotes}associated{close_quotes} alpha-particle emitted in the opposite direction. Thus detection of an alpha-particle marks the emission of a neutron in a cone opposite to that defined by the alpha detector. Detection of a gamma ray coincident with the alpha indicates that the gamma was emitted from a neutron-induced reaction inside the neutron cone: the gamma spectra can be used to identify fissionable materials and many isotopes having an atomic number larger than that of boron. The differences in gamma-ray and alpha-particle detection times yield a coarse measurement of the distance along the cone axis from the APSTNG emitter to each region containing the identified nuclide. A position-sensitive alpha detector would permit construction of coarse three-dimensional images. The source and emission-detection systems can be located on the same side of the interrogated volume. The neutrons and gamma rays are highly penetrating. A relatively high signal-to-background ratio allows the use of a relatively small neutron source and conventional electronics.

Rhodes, E.; Dickerman, C.E.; Brunner, T.; Hess, A.; Tylinski, S.

1994-12-01

296

Evaluation of interim and final waste forms for the newly generated liquid low-level waste flowsheet  

SciTech Connect

The purpose of this review is to evaluate the final forms that have been proposed for radioactive-containing solid wastes and to determine their application to the solid wastes that will result from the treatment of newly generated liquid low-level waste (NGLLLW) and Melton Valley Storage Tank (MVST) supernate at the Oak Ridge National Laboratory (ORNL). Since cesium and strontium are the predominant radionuclides in NGLLLW and MVST supernate, this review is focused on the stabilization and solidification of solid wastes containing these radionuclides in cement, glass, and polymeric materials-the principal waste forms that have been tested with these types of wastes. Several studies have shown that both cesium and strontium are leached by distilled water from solidified cement, although the leachabilities of cesium are generally higher than those of strontium under similar conditions. The situation is exacerbated by the presence of sulfates in the solution, as manifested by cracking of the grout. Additives such as bentonite, blast-furnace slag, fly ash, montmorillonite, pottery clay, silica, and zeolites generally decrease the cesium and strontium release rates. Longer cement curing times (>28 d) and high ionic strengths of the leachates, such as those that occur in seawater, also decrease the leach rates of these radionuclides. Lower cesium leach rates are observed from vitrified wastes than from grout waste forms. However, significant quantities of cesium are volatilized due to the elevated temperatures required to vitrify the waste. Hence, vitrification will generally require the use of cleanup systems for the off-gases to prevent their release into the atmosphere.

Abotsi, G.M.K. [Clark Atlanta Univ., GA (United States); Bostick, D.T.; Beck, D.E. [Oak Ridge National Lab., TN (United States)] [and others

1996-05-01

297

77 FR 76541 - Entergy Nuclear Operations, Inc.; Pilgrim Nuclear Power Station  

Federal Register 2010, 2011, 2012, 2013

...Operations, Inc.; Pilgrim Nuclear Power Station AGENCY: Nuclear Regulatory...operation of the Pilgrim Nuclear Power Station (Pilgrim), located...Plants Regarding Pilgrim Nuclear Power Station, Final Report- Appendices...Nuclear Regulatory Commission. Richard V. Guzman, Senior...

2012-12-28

298

International Space Station (ISS) Alpha Concept  

NASA Technical Reports Server (NTRS)

Artist's concept of the final configuration of the International Space Station (ISS) Alpha. The ISS is a multidisciplinary laboratory, technology test bed, and observatory that will provide an unprecedented undertaking in scientific, technological, and international experimentation.

1994-01-01

299

76 FR 29279 - Prairie Island Nuclear Generating Plant, Units 1 and 2; Notice of Availability of the Final...  

Federal Register 2010, 2011, 2012, 2013

...NRC-2009-0507] Prairie Island Nuclear Generating Plant, Units...the License Renewal of Prairie Island Nuclear Generating Plants...years of operation for Prairie Island Nuclear Generating Plant, Units...Wing, Minnesota, on the west bank of the Mississippi River...

2011-05-20

300

The role of synoptic-scale features and advection in prolonged warming and generation of different forms of precipitation at Dome Fuji station, Antarctica, following a prominent blocking event  

NASA Astrophysics Data System (ADS)

A blocking event over the East Antarctic ice sheet during June 1997 generated the highest surface air temperature (which increased from around -70°C to around -30°C) and pressure of that year at the Dome Fuji station (77.5°S, 40°E). Following the blocking event, the anomalously high air temperature (around -50°C to -60°C) and pressure were maintained at the surface for about 1 week. This study investigates how these warm conditions were maintained and documents the sequential occurrence of two forms of synoptic-scale high-pressure systems with conditions that produced precipitation by different processes in each case. In the first half of the warm period, a solitary high-pressure system (the Solitary High) formed over the Dome Fuji station and traveled west over East Antarctica after being cut off from the tip of the preceding blocking ridge. During this phase, tropospheric temperatures were higher, and surface-based temperature inversions were more intense than during the following period. While a dry-out developed in the troposphere below about 300 hPa, the precipitation of ice crystals in the surface-based temperature inversion layer was generated by deposition of moisture that had become trapped in the boundary layer after being transported onto the continent by the previous blocking ridge. This mechanism has not been previously reported elsewhere. During the second half of the warm period, a ridge of high pressure (the Transcontinental Ridge) traversed East Antarctica almost completely, and its western section was amplified by the merging of the Solitary High with a preceding quasi-stationary Rossby wave train propagating along the Southern Ocean. This ridge allowed an intrusion of warm, moist air from the Weddell Sea toward the station, which generated precipitation throughout the whole troposphere by orographic uplift once again, and ended the dry-out. This represents the typical mechanism of both moisture transportation and the generation of precipitation, and this mechanism was the same as that associated with the preceding blocking ridge.

Hirasawa, Naohiko; Nakamura, Hisashi; Motoyama, Hideaki; Hayashi, Masahiko; Yamanouchi, Takashi

2013-07-01

301

A reagentless technology to prevent biofouling on the surfaces of equipment at nuclear and thermal power stations using generators of OH radicals and ozone  

NASA Astrophysics Data System (ADS)

We present the results obtained from the development and tests of a reagentless method to prevent biofouling in water cooling systems of equipment using generators of OH radicals and ozone constructed on the basis of impulse ultraviolet xenon lamps producing light with a wavelength of 172 nm.

Izyumov, S. V.; Shchekotov, E. Yu.; Shchekotov, D. E.; Krutskikh, D. A.

2011-07-01

302

Expedition 34 Final Training  

NASA Video Gallery

The Expedition 34 crew members conduct final training at the Gagarin Cosmonaut Training Center before their Dec. 19 launch to the International Space Station. Flight Engineers Chris Hadfield, Roman...

303

International Space Station technology demonstrations  

Microsoft Academic Search

The International Space Station (ISS) has the capability to test and demonstrate, and otherwise assist in the development and validation, of a wide range of advanced technologies. Technology tests and demonstrations for advanced communication systems, closed-loop environmental control systems, advanced power storage and generation systems, advanced electric and electromagnetic propulsion systems, and others are being assessed for inclusion in an

Alan C. Holt

1998-01-01

304

38. SITE BUILDING 004 ELECTRIC POWER STATION AT INTERIOR ...  

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

38. SITE BUILDING 004 - ELECTRIC POWER STATION AT INTERIOR - OBLIQUE VIEW AT FLOOR LEVEL SHOWING DIESEL ENGINE/GENERATOR SET NUMBER 5. - Cape Cod Air Station, Technical Facility-Scanner Building & Power Plant, Massachusetts Military Reservation, Sandwich, Barnstable County, MA

305

Automated Planning for a Deep Space Communications Station.  

National Technical Information Service (NTIS)

This paper describes the application of Artificial Intelligence planning techniques to the problem of antenna track plan generation for a NASA Deep Space Communications Station. Me described system enables an antenna communications station to automaticall...

T. Estlin, F. Fisher, D. Mutz, S. Chien

1999-01-01

306

36. SITE BUILDING 004 ELECTRIC POWER STATION CLOSE ...  

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

36. SITE BUILDING 004 - ELECTRIC POWER STATION - CLOSE UP VIEW OF 1200 HORSEPOWER STANDBY POWER DIESEL ENGINE/GENERATOR SETS. - Cape Cod Air Station, Technical Facility-Scanner Building & Power Plant, Massachusetts Military Reservation, Sandwich, Barnstable County, MA

307

15. SITE BUILDING 004 ELECTRIC POWER STATION VIEW ...  

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

15. SITE BUILDING 004 - ELECTRIC POWER STATION - VIEW IS LOOKING SOUTH 55° EAST AT FIVE DIESEL ENGINE/ GENERATOR SILENCER SYSTEM EXHAUST STACKS. - Cape Cod Air Station, Technical Facility-Scanner Building & Power Plant, Massachusetts Military Reservation, Sandwich, Barnstable County, MA

308

37. SITE BUILDING 004 ELECTRIC POWER STATION ELEVATED ...  

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

37. SITE BUILDING 004 - ELECTRIC POWER STATION - ELEVATED VIEW OF FIVE (5) 1200 HORSEPOWER STANDBY - POWER DIESEL ENGINE/GENERATOR SETS. - Cape Cod Air Station, Technical Facility-Scanner Building & Power Plant, Massachusetts Military Reservation, Sandwich, Barnstable County, MA

309

Results from comprehensive thermal and chemical tests of steam generator No. 2 in unit 1 at the Volgodonsk Nuclear Power Station  

Microsoft Academic Search

We present the results from investigating the distribution of the concentrations of sodium and iron (II + III) in the water\\u000a volume of a steam generator and an analysis of their behavior in the course of blowdown operations carried out in accordance\\u000a with the existing maintenance procedure when the power unit is run with its reactor plant operating at a

V. I. Gorburov; Yu. F. Kutdyusov; I. O. Bud’kov; A. Yu. Petrov; A. G. Zhukov; N. B. Trunov

2006-01-01

310

78 FR 44603 - Byron Nuclear Station, Units 1 and 2, and Braidwood Nuclear Station, Units 1 and 2; Exelon...  

Federal Register 2010, 2011, 2012, 2013

...licenses for the Byron Nuclear Station (Byron...and the Braidwood Nuclear Station (Braidwood...which authorize Exelon Generation Company, LLC (Exelon...contacting the U.S. Nuclear Regulatory Commission...Office of Nuclear Reactor Regulation,...

2013-07-24

311

12. VIEW OF OPERATING ROOMRCA COMMUNICATION REC STATION (THIS ROOM ...  

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

12. VIEW OF OPERATING ROOM-RCA COMMUNICATION REC STATION (THIS ROOM WAS ORIGINALLY A MOTOR GENERATOR FACILITY AND SUPPLIED DC POWER TO AN EARLIER GENERATION OF POINT-TO-POINT RECEIVERS ON SECOND FLOOR). VIEW SHOWS TRANSMITTER CONTROL STATION AND AUDIO CONTROL STATION (LEFT, WATKINS-JOHNSON WJ-8718-23. HP RECEIVERS AND KENWOOD R-5000 COMMUNICATIONS RECEIVERS (220 DEGREES). - Marconi Radio Sites, Receiving, Point Reyes Station, Marin County, CA

312

Space Station fluid resupply  

Microsoft Academic Search

Viewgraphs on space station fluid resupply are presented. Space Station Freedom is resupplied with supercritical O2 and N2 for the ECLSS and USL on a 180 day resupply cycle. Resupply fluids are stored in the subcarriers on station between resupply cycles and transferred to the users as required. ECLSS contingency fluids (O2 and N2) are supplied and stored on station

Al Winters

1990-01-01

313

Reliable, Low-Cost Distributed Generator/Utility System Interconnect: Final Subcontract Report, November 2001-March 2004  

SciTech Connect

This report summarizes the detailed study and development of new GE anti-islanding controls for two classes of distributed generation. One is inverter-interfaced, while the other is synchronous machine interfaced.

Ye, Z.; Walling, R.; Miller, N.; Du, P.; Nelson, K.; Li, L.; Zhou, R.; Garces, L.; Dame, M.

2006-03-01

314

New approaches for the reduction of plasma arc drop in second-generation thermionic converters. Final report  

SciTech Connect

Investigations of ion generation and recombination mechanisms in the cesium plasma as they pertain to the advanced mode thermionic energy converter are described. The changes in plasma density and temperature within the converter have been studied under the influence of several promising auxiliary ionization candidate sources. Three novel approaches of external cesium ion generation have been investigated in some detail, namely vibrationally excited N/sub 2/ as an energy source of ionization of Cs ions in a DC discharge, microwave power as a means of resonant sustenance of the cesium plasma, and ion generation in a pulse N/sub 2/-Cs mixture. The experimental data obtained and discussed show that all three techniques - i.e. the non-LTE high-voltage pulsing, the energy transfer from vibrationally excited diatomic gases, and the external pumping with a microwave power - have considerable promise as schemes in auxiliary ion generation applicable to the advanced thermionic energy converter.

Hatziprokopiou, M.E.; Shaw, D.T.

1981-03-31

315

Final report of the key technology development program for a next-generation high-temperature gas turbine  

Microsoft Academic Search

There is a strong demand for efficient and clean power-generating systems to meet recent energy-saving requirements and environmental regulations. A combined cycle power plant is one of the best solutions to the above. Tohoku Electric Power Co., Inc., and Mitsubishi Heavy Industries, ltd., have jointly developed three key technologies for a next-generation 1,500 C class gas turbine. The three key

M. Sato; Y. Kobayashi; H. Matsuzaki; S. Aoki; Y. Tsukuda; E. Akita

1997-01-01

316

OSSA Space Station waste inventory  

NASA Technical Reports Server (NTRS)

NASA's Office of Space Science and Applications has compiled an inventory of the types and quantities of the wastes that will be generated by the Space Station's initial operational phase in 35 possible mission scenarios. The objective of this study was the definition of waste management requirements for both the Space Station and the Space Shuttles servicing it. All missions, when combined, will produce about 5350 kg of gaseous, liquid and solid wastes every 90 days. A characterization has been made of the wastes in terms of toxicity, corrosiveness, and biological activity.

Rasmussen, Daryl N.; Johnson, Catherine C.; Bosley, John J.; Curran, George L.; Mains, Richard

1987-01-01

317

Calculations of thrust generation by the driver system of a large blast simulator. Final report Feb-Dec 90  

SciTech Connect

A computational study was performed to determine the peak thrust which would be generated by cylindrical shock tube drivers of various lengths. Thrust histories were generated for two different flow conditions, one in which the shock tube was operated normally and the other in which a driver length adjusting device (hydroplug) failed. Once the magnitude and behavior of the thrust histories are understood, steps can be taken to design supports for the driver tubes which will withstand the cyclic loading associated with normal operation as well as the reverse loading associated with the component failure.

Schraml, S.J.

1991-03-01

318

Management strategies for treatment and disposal of utility-generated low-level radioactive waste: Final report  

Microsoft Academic Search

Strategies for managing the low-level radioactive wastes generated at nuclear power plants are identified and evaluated for three disposal scenarios that include regional disposal capacity available, regional disposal capacity delayed, and regional disposal capacity not available for an extended period relative to the January 1, 1993 milestone of the Low-Level Radioactive Waste Policy Amendments Act of 1985. The strategies, and

E. S. Murphy; V. C. Rogers; M. K. Bollenbacher; R. B. Klein; W. J. II Smith

1989-01-01

319

First-Generation College Seniors: A Phenomenological Exploration of the Transitional Experience of the Final College Year  

ERIC Educational Resources Information Center

This study investigated the transitional experience of college seniors who are also first-generation status. This topic merits investigation because there is an increasing interest in various demographics of college students, and because college seniors represent an important retention demographic for American higher education, where the retention…

Overton-Healy, Julia

2010-01-01

320

Local control stations  

SciTech Connect

This paper describes research concerning the effects of human engineering design at local control stations (i.e., operator interfaces located outside the control room) on human performance and plant safety. The research considered both multifunction panels (e.g. remote shutdown panels) as well as single-function interfaces (e.g., valves, breakers, gauges, etc.). Changes in performance shaping factors associated with variations in human engineering at LCSs were estimated based on expert opinion. By means of a scaling procedure, these estimates were used to modify the human error probabilities in a PRA model, which was then employed to generate estimates of plant risk and scoping-level value/impact ratios for various human engineering upgrades. Recent documentation of human engineering deficiencies at single-function LCSs was also reviewed, and an assessment of the current status of LCSs with respect to human engineering was conducted.

Brown, W.S.; Higgins, J.C. [Brookhaven National Lab., Upton, NY (United States); Wachtel, J.A. [Nuclear Regulatory Commission, Washington, DC (United States). Div. of Systems Research

1993-05-01

321

Mechanisms of radiation damage generated by ionizing radiation in optical waveguides. Final report, 1 June 1984-31 December 1987  

Microsoft Academic Search

Radiation damage generated by ionizing radiation (uv- and gamma radiation) was studied in a variety of optical preforms and fiber-optic waveguides. The materials investigated included germanium-doped silica preforms and fibers, fluorine-doped silica, and heavy-metal fluoride glass. Radiation damage and aging effects in bulk and fiber were also investigated. Electron paramagnetic resonance and optical spectroscopies were used to study the centers

1988-01-01

322

Final Results for the GRC Supporting Technology Development Project for the 110-Watt Stirling Radioisotope Generator (SRG110)  

NASA Technical Reports Server (NTRS)

From 1999 to 2006, the NASA Glenn Research Center (GRC) supported the development of a high-efficiency, nominal 110-We Stirling Radioisotope Generator (SRG110) for potential use on NASA missions, including deep space missions, Mars rovers, and lunar applications. Lockheed Martin (LM) was the system integrator for the SRG110, under contract to the Department of Energy (DOE). Infinia Corporation (formerly Stirling Technology Company) developed the Stirling convertor, first as a contractor to DOE and then under subcontract to LM. The SRG110 development has been redirected, and recent program changes have been made to significantly increase the specific power of the generator. System development of an Advanced Stirling Radioisotope Generator (ASRG) has now begun, using a lightweight, advanced convertor from Sunpower, Inc. This paper summarizes the results of the supporting technology effort that GRC completed for the SRG110. GRC tasks included convertor extended-duration testing in air and thermal vacuum environments, heater head life assessment, materials studies, permanent magnet aging characterization, linear alternator evaluations, structural dynamics testing, electromagnetic interference (EMI) and electromagnetic compatibility (EMC) characterization, organic materials evaluations, reliability studies, and development of an end-to-end system dynamic model. Related efforts are now continuing in many of these areas to support ASRG development.

Schreiber, Jeffrey G.; Thieme, Lanny G.

2007-01-01

323

Transition metal catalysis in the generation of petroleum and natural gas. Final report, September 1, 1992--October 31, 1995  

SciTech Connect

This project originated on the premise that natural gas could be formed catalytically in the earth rather than thermally as commonly believed. The intention was to test this hypothetical view and to explore generally the role of sedimentary metals in the generation of light hydrocarbons (C1 - C9). We showed the metalliferous source rocks are indeed catalytic in the generation of natural gas. Various metal compounds in the pure state show the same levels of catalytic activity as sedimentary rocks and the products are identical. Nickel is particularly active among the early transition metals and is projected to remain catalytically robust at all stages of catagenesis. Nickel oxide promotes the formation of n-alkanes in addition to natural gas (NG), demonstrating the full scope of the hypothetical catalytic process. The composition of catalytic gas duplicates the entire range of natural gas, from so-called wet gas to dry gas (60 to 95+ wt % methane), while gas generated thermally is consistently depleted in methane (10 to 60 wt % methane). These results support the view that metal catalysis is a major pathway through which natural gas is formed in the earth.

Mango, F.D.

1997-01-21

324

Final Results for the GRC Supporting Technology Development Project for the 110-Watt Stirling Radioisotope Generator (SRG110)  

NASA Technical Reports Server (NTRS)

From 1999-2006, the NASA Glenn Research Center (GRC) supported the development of a high-efficiency, nominal 110-We Stirling Radioisotope Generator (SRG110) for potential use on NASA missions, including deep space missions, Mars rovers, and lunar applications. Lockheed Martin (LM) was the system integrator for the SRG110, under contract to the Department of Energy (DOE). Infinia Corporation (formerly Stirling Technology Company) developed the Stirling convertor, first as a contractor to DOE and then under subcontract to LM. The SRG110 development has been redirected, and recent program changes have been made to significantly increase the specific power of the generator. System development of an Advanced Stirling Radioisotope Generator (ASRG) has now begun, using a lightweight, advanced convertor from Sunpower, Inc. This paper summarizes the results of the supporting technology effort that GRC completed for the SRG110. GRC tasks included convertor extended-duration testing in air and thermal vacuum environments, heater head life assessment, materials studies, permanent magnet aging characterization, linear alternator evaluations, structural dynamics testing, electromagnetic interference (EMI) and electromagnetic compatibility (EMC) characterization, organic materials evaluations, reliability studies, and development of an end-to-end system dynamic model. Related efforts are now continuing in many of these areas to support ASRG development.

Schreiber, Jeffrey G.; Thieme, Lanny G.

2007-01-01

325

Station Tour: Russian Segment  

NASA Video Gallery

Expedition 33 Commander Suni Williams concludes her tour of the International Space Station with a visit to the Russian segment, which includes Zarya, the first segment of the station launched in 1...

326

49. Photocopy of scale drawing (from Station 'L' office files, ...  

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

49. Photocopy of scale drawing (from Station 'L' office files, Portland, Oregon) Portland General Electric in house drawings, 1930 FLOW DIAGRAM OF THE STEAM GENERATION PROCESS AT STATION 'L' - Portland General Electric Company, Station "L", 1841 Southeast Water Street, Portland, Multnomah County, OR

327

World Hydrogen Fueling Stations  

NSDL National Science Digital Library

This document provides information on hydrogen fueling stations in the United States and other countries including Canada, Australia, Germany and Japan. Individual fueling stations are profiled, including the fuel type provided, when it was opened, how the hydrogen is produced and other details. Small photographs of each station are also included. This document may be downloaded in PDF file format.

2012-09-06

328

Southwestern Research Station  

NSDL National Science Digital Library

This Web site profiles AMNH's Southwestern Research Station (SWRS), a year-round field station that allows biologists, geologists, and anthropologists to study the diverse environments and biotas of the Chiricahua Mountains in southeastern Arizona. The site includes an overview of the field station and its work, information on courses offered, and information for visitors, researchers, interns and volunteers.

329

Wind-powered electric generation runway lighting system demonstration project. Interim final technical report, September 15, 1981-December 15, 1983  

SciTech Connect

The project is a small scale demonstration project to determine the feasibility of using wind-powered generation of electricity to operate the runway lighting system at Half Moon Bay Airport. The airport is located in San Mateo County near Highway 1, approximately 15 miles south of San Francisco, California. The project is a joint effort of San Mateo County, the California Department of Transportation, Division of Aeronautics, and the United States Department of Energy. The concept of wind-powered turbines to produce electrical power, which is not new or unique, has been demonstrated many times. This project seeks to determine if wind power has practical application to an airport environment as a cost-effective means of providing an alternate source of energy. Should the results of this demonstration be positive, the technology can be applied to airports statewide which possess the meteorological conditions conducive to wind power generation. Concurrently included in the demonstration project, and funded separately, is the construction of a runway lighting system designed for low energy use. The total system is tied into PG and E's grid system.

Mesa, D.

1984-01-01

330

Low NO{sub x} turbine power generation utilizing low Btu GOB gas. Final report, June--August 1995  

SciTech Connect

Methane, a potent greenhouse gas, is second only to carbon dioxide as a contributor to potential global warming. Methane liberated by coal mines represents one of the most promising under exploited areas for profitably reducing these methane emissions. Furthermore, there is a need for apparatus and processes that reduce the nitrogen oxide (NO{sub x}) emissions from gas turbines in power generation. Consequently, this project aims to demonstrate a technology which utilizes low grade fuel (CMM) in a combustion air stream to reduce NO{sub x} emissions in the operation of a gas turbine. This technology is superior to other existing technologies because it can directly use the varying methane content gases from various streams of the mining operation. The simplicity of the process makes it useful for both new gas turbines and retrofitting existing gas turbines. This report evaluates the feasibility of using gob gas from the 11,000 acre abandoned Gateway Mine near Waynesburg, Pennsylvania as a fuel source for power generation applying low NO{sub x} gas turbine technology at a site which is currently capable of producing low grade GOB gas ({approx_equal} 600 BTU) from abandoned GOB areas.

Ortiz, I.; Anthony, R.V.; Gabrielson, J.; Glickert, R.

1995-08-01

331

Early utility experience with wind power generation. Volume 2. Pacific Gas and Electric Company, Solano County project. Final report  

SciTech Connect

This report is one of three presenting the results of EPRI Research Project 1590-1, Evaluation of Electric Utility Experience with Wind Power Generation. The objective of this project was to develop an improved understanding of wind power generation, in particular the process a utility must undergo to initiate and carry out a wind turbine project. The primary tasks of RP1590-1 were to document and evaluate the experience of two utilities with megawatt-scale wind turbine installations from project inception to the wind turbine's first rotation. This technical report presents the experiences of the Pacific Gas and Electric Company (PG and E) with its wind turbine installation at Solano County, California. All documents and reports pertaining to PG and E's experience with wind energy at Solano County were reviewed and excerpts made of the highlights. Gaps in the documentation were filled by talking with appropriate people. Site visits were conducted to monitor current activity. The information obtained was evaluated for its generic relevance and benefit to other utilities. The chronology of steps taken by PG and E in implementing the Solano wind turbine experience and some of the lessons learned are included in the report. In each section, important activities, critical assumptions, and interesting insights which might benefit other utility wind programs are identified.

McCabe, T.; Henry, G.; Tennis, M.; Goldenblatt, M.

1984-01-01

332

Early utility experience with wind power generation. Volume 3: Bonneville Power Administration Goodnoe Hills Project. Final report  

SciTech Connect

This report is one of three presenting the results of EPRI Research Project 1590-1, Evaluation of Electric Utility Experience with Wind Power Generation. The objective of this project was to develop an improved understanding of wind power generation, in particular the process a utility must undergo to initiate and carry out a wind turbine project. The primary tasks of RP1590-1 were to document and evaluate the experience of two utilities with megawatt-scale wind turbine installations from project inception to the wind turbine's first rotation. This technical report presents the experiences of the Bonneville Power Administration (BPA) as the participating utility in the MOD-2 cluster field test program. Under this program the National Aeronautics and Space Administration (NASA) as management agent for the US Department of Energy, has installed three MOD-2 wind turbines at Bonneville's Goodnoe Hills site. All documents and reports pertaining to BPA's experience with wind energy at Goodnoe Hills were reviewed and excerpts made of the highlights. Gaps in the documentation were filled by talking with the appropriate people. Site visits were conducted to monitor current activity. The information obtained was evaluated for its generic relevance and benefit to other utilities. The chronology of the steps taken in implementing the wind turbine project and some of the lessons learned are included in the report. In each section, important activities, critical assumptions, and interesting insights which might benefit other utility wind programs are identified.

McCabe, T.; Henry, G.; Tennis, M.; Goldenblatt, M.

1984-01-01

333

Space Station Live: Station Communications Upgrade  

NASA Video Gallery

NASA Public Affairs Officer Nicole Cloutier-Lemasters recently spoke with Penny Roberts, one of the leads for the International Space Station Avionics and Software group, about the upgrade of the K...

334

The Activities and Importance of International Field Stations  

NSDL National Science Digital Library

Field stations worldwide are valuable resources for the discovery of natural phenomena, education and enlightenment of students, and training of the next generation of field scientists. Field stations face the pressures of human population expansion, habitat and biodiversity loss, and changing environmental conditions, and hence are sentinels of the state of our precarious Earth. We demonstrate the importance of field stations by describing developments supported by field stations and by examining recent literature. Eleven percent of papers published in Conservation Biology and 26% of those published in Ecology were supported in some way by a field station. We review data supplied by field stations over the last 20 years about stationsâ ecology, dominant discipline, personnel, and infrastructure. Communication among international field stations is difficult and could be improved by the formation of more regional networks. An international network would help elevate the recognition of the importance of field stations.

Eugene Wallensky (The Australia National University;); Mark Baine (University of Papua New Guinea;Motupore Island Research Centre); Richard Wyman (E. N. Huyck Preserve & Biological Research Station;)

2009-07-01

335

Proposed Tenaska Washington II Generation Project : Final Environmental Impact Statement. Volume 1: Environmental Analysis and Technical Appendices.  

SciTech Connect

BPA is considering whether to purchase electrical power from a proposed privately-owned combustion-turbine electrical generation plant in Washington. The plant would be fired by natural gas and would use combined-cycle technology to generate 240 average megawatts (aMW) of energy. The plant would be developed, owned, and operated by Tenaska Washington Partners II, L.P. The project would be located about 19 kilometers (12 miles) southeast of downtown Tacoma in the Frederickson Industrial Area, Pierce County. The proposed plant would occupy about half of a 6.4-hectare (16-acre) parcel and would be consistent with the industrial character of its surroundings. The proposed site is currently undeveloped and zoned for industrial use by the county. Main environmental concerns identified in the scoping process and in comments on the Draft Environmental Impact Statement (EIS) include: (1) potential air quality impacts, such as emissions and their contribution to the {open_quotes}greenhouse{close_quotes} effect; (2) potential health and safety impacts, such as nuisance odors, plant safety, visibility and heat-emission systems which may affect low-flying planes and potential health effects of electric and magnetic fields; and (3) potential water quality and quantity impacts, such as the amount of wastewater to be discharged, the source and amount of water required for plant operation. These and other issues are discussed in detail in the EIS. The proposed project already includes many features designed to reduce environmental impacts. Based on investigations performed for the EIS, no significant unavoidable adverse environmental impacts associated with the proposed project were identified, and no evidence emerged to suggest that the proposed action is controversial. The EIS is being mailed to numerous agencies, groups, and individuals (see Section 8.0). There will be a 30-day no-action period before any decisions are made and the Record of Decision is signed.

United States. Bonneville Power Administration.

1994-01-01

336

76 FR 58844 - Virginia Electric and Power Company, Surry Power Station, Units 1 and 2; Exemption  

Federal Register 2010, 2011, 2012, 2013

...NUREG-1474, ``Effect of Hurricane Andrew on the Turkey Point Nuclear Generating Station from August 20-30, 1992...NUREG-1474, ``Effect of Hurricane Andrew on the Turkey Point Nuclear Generating Station from August 20-30,...

2011-09-22

337

Proceedings of the 2. MIT international conference on the next generation of nuclear power technology. Final report  

SciTech Connect

The goal of the conference was to try to attract a variety of points of view from well-informed people to debate issues concerning nuclear power. Hopefully from that process a better understanding of what one should be doing will emerge. In organizing the conference lessons learned from the previous one were applied. A continuous effort was made to see to it that the arguments for the alternatives to nuclear power were given abundant time for presentation. This is ultimately because nuclear power is going to have to compete with all of the energy technologies. Thus, in discussing energy strategy all of the alternatives must be considered in a reasonable fashion. The structure the conference used has seven sessions. The first six led up to the final session which was concerned with what the future nuclear power strategy should be. Each session focused upon a question concerning the future. None of these questions has a unique correct answer. Rather, topics are addressed where reasonable people can disagree. In order to state some of the important arguments for each session`s question, the combination of a keynote paper followed by a respondent was used. The respondent`s paper is not necessarily included to be a rebuttal to the keynote; but rather, it was recognized that two people will look at a complex question with different shadings. Through those two papers the intention was to get out the most important arguments affecting the question for the session. The purpose of the papers was to set the stage for about an hour of discussion. The real product of this conference was that discussion.

NONE

1993-12-31

338

Final Report on Utilization of TRU TRISO Fuel as Applied to HTR Systems Part II: Prismatic Reactor Cross Section Generation  

SciTech Connect

The deep-burn prismatic high temperature reactor is made up of an annular core loaded with transuranic isotopes and surrounded in the center and in the periphery by reflector blocks in graphite. This disposition creates challenges for the neutronics compared to usual light water reactor calculation schemes. The longer mean free path of neutrons in graphite affects the neutron spectrum deep inside the blocks located next to the reflector. The neutron thermalisation in the graphite leads to two characteristic fission peaks at the inner and outer interfaces as a result of the increased thermal flux seen in those assemblies. Spectral changes are seen at least on half of the fuel blocks adjacent to the reflector. This spectral effect of the reflector may prevent us from successfully using the two step scheme -lattice then core calculation- typically used for light water reactors. We have been studying the core without control mechanisms to provide input for the development of a complete calculation scheme. To correct the spectrum at the lattice level, we have tried to generate cross-sections from supercell calculations at the lattice level, thus taking into account part of the graphite surrounding the blocks of interest for generating the homogenised cross-sections for the full-core calculation. This one has been done with 2 to 295 groups to assess if increasing the number of groups leads to more accurate results. A comparison with a classical single block model has been done. Both paths were compared to a reference calculation done with MCNP. It is concluded that the agreement with MCNP is better with supercells, but that the single block model remains quite close if enough groups are kept for the core calculation. 26 groups seems to be a good compromise between time and accu- racy. However, some trials with depletion have shown huge variations of the isotopic composition across a block next to the reflector. It may imply that at least an in- core depletion for the number density calculation may be necessary in the complete calculation scheme.

Vincent Descotes

2011-03-01

339

Monolithic solid oxide fuel cell technology advancement for coal-based power generation. Final report, September 1989--March 1994  

SciTech Connect

This project has successfully advanced the technology for MSOFCs for coal-based power generation. Major advances include: tape-calendering processing technology, leading to 3X improved performance at 1000 C; stack materials formulations and designs with sufficiently close thermal expansion match for no stack damage after repeated thermal cycling in air; electrically conducting bonding with excellent structural robustness; and sealants that form good mechanical seals for forming manifold structures. A stack testing facility was built for high-spower MSOFC stacks. Comprehensive models were developed for fuel cell performance and for analyzing structural stresses in multicell stacks and electrical resistance of various stack configurations. Mechanical and chemical compatibility properties of fuel cell components were measured; they show that the baseline Ca-, Co-doped interconnect expands and weakens in hydrogen fuel. This and the failure to develop adequate sealants were the reason for performance shortfalls in large stacks. Small (1-in. footprint) two-cell stacks were fabricated which achieved good performance (average area-specific-resistance 1.0 ohm-cm{sup 2} per cell); however, larger stacks had stress-induced structural defects causing poor performance.

Not Available

1994-05-01

340

Final environmental impact statement. Management of commercially generated radioactive waste. Volume 3. Public comments hearing board report  

SciTech Connect

This EIS analyzes the significant environmental impacts that could occur if various technologies for management and disposal of high-level and transuranic wastes from commercial nuclear power reactors were to be developed and implemented. This EIS will serve as the environmental input for the decision on which technology, or technologies, will be emphasized in further research and development activities in the commercial waste management program. The action proposed in this EIS is to (1) adopt a national strategy to develop mined geologic repositories for disposal of commercially generated high-level and transuranic radioactive waste (while continuing to examine subseabed and very deep hole disposal as potential backup technologies) and (2) conduct a R and D program to develop such facilities and the necessary technology to ensure the safe long-term containment and isolation of these wastes. The Department has considered in this statement: development of conventionally mined deep geologic repositories for disposal of spent fuel from nuclear power reactors and/or radioactive fuel reprocessing wastes; balanced development of several alternative disposal methods; and no waste disposal action. This volume contains written public comments and hearing board responses and reports offered on the draft statement.

Not Available

1980-10-01

341

Ultracoatings: Enabling Energy and Power Solutions in High Contact Stress Environments through next-generation Nanocoatings Final Technical Report  

SciTech Connect

A review of current commercially available, industrial-grade, low friction coatings will show that interfacial contact pressures nearing 1GPa ({approx}150ksi) inherently limit surface engineering solutions like WC, TiN, TiAlN, and so forth. Extremely hard coatings, then, are often pursued as the principle path, although they too are not without significant limitations. A majority of these compounds are inherently brittle in nature or may not pair well with their mating substrate. In either case, their durability in high contact stress environments is compromised. In parallel to thin film coatings, many conventional surface treatments do not yield an interface hard enough to withstand extreme stresses under load. New research into advanced, nanocomposite materials like (Ti, Zr)B2 shows great promise. Bulk compacts of this compound have demonstrated an order of magnitude better wear resistance than current offerings, notably materials like tungsten carbide. At a laboratory level, the (Ti,Zr)B2 nanocomposite material exhibited abrasive and erosive wear resistance nearly ten times better than existing mixed-phase boride systems. In ASTM abrasion and erosion testing, these new compositions exhibit wear resistance superior to other known advanced materials such as RocTec 500 and 'Borazon' cubic boron nitride. Many significant challenges exist for mass production of (Ti, Zr)B2, one of which is the necessary processing technology that is capable of minimizing deleterious impurity phases. Secondly, this material's performance is derived from a synergistic effect of the two materials existing as a single phase structure. While the individual constituents of TiB2 and ZrB2 do yield improvements to wear resistance, their singular effects are not as significant. Lastly, deposition of this material on a commercial level requires thorough knowledge of nanocomposite boride solids; the benefits associated with these innovative new materials are just being realized. Advancing this technology, called Ultracoatings, through initial development, scale up, and commercialization to a variety of markets would represent a transformative leap to surface engineering. Several application spaces were considered for immediate implementation of the Ultracoatings technology, including, but not limited to, a drive shaft for an aerospace fuel pump, engine timing components, and dry solids pump hardware for an innovative coal gasifier. The primary focus of the program was to evaluate and screen the performance of the selected (Ti, Zr)B2 Ultracoatings composition for future development. This process included synthesis of the material for physical vapor deposition, sputtering trials and coating characterization, friction and wear testing on sample coupons, and functional hardware testing. The main project deliverables used to gage the project's adherence to its original objective were: Development of a coating/substrate pairing that exhibits wear rate of 0.1 mg/hour or lower at a 1GPa contact pressure, while achieving a maximum coating cost of $0.10/cm2. Demonstrate the aforementioned wear rate in both lubricated and starved lubrication conditions. Although the (Ti, Zr) B2 coating was not tailored for low friction performance, friction and wear evaluations of the material demonstrated a coefficient of sliding friction as low as 0.09. This suggests that varying the percentage of TiB2 present in the composite could enhance the materials performance in water-based lubricants. In the aerospace drive shaft application, functional hardware coated with (Ti, Zr)B2 survived a variety of abuse and long-range durability tests, with contact pressures exceeding 2 GPa. For engine timing components, further work is planned to evaluate the Ultracoatings technology in direct injection and diesel engine conditions. In the final identified application space the dry solids pump hardware, discussions continue on the application of the Ultracoatings technology for those specific components. Full implementation of the technology into the targeted markets equates to a U.S.-based en

Clifton B. Higdon III

2012-03-20

342

Alternative strategies for space station financing  

NASA Technical Reports Server (NTRS)

The attributes of the proposed space station program are oriented toward research activities and technologies which generate long term benefits for mankind. Unless such technologies are deemed of national interest and thus are government funded, they must stand on their own in the market place. Therefore, the objectives of a United States space station should be based on commercial criteria; otherwise, such a project attracts no long term funding. There is encouraging evidence that some potential space station activities should generate revenues from shuttle related projects within the decade. Materials processing concepts as well as remote sensing indicate substantial potential. Futhermore, the economics and thus the commercial feasibility of such projects will be improved by the operating efficiencies available with an ongoing space station program.

Walklet, D. C.; Heenan, A. T.

1983-01-01

343

Space station power system  

NASA Technical Reports Server (NTRS)

The major requirements and guidelines that affect the space station configuration and power system are explained. The evolution of the space station power system from the NASA program development-feasibility phase through the current preliminary design phase is described. Several early station concepts are described and linked to the present concept. Trade study selections of photovoltaic system technologies are described in detail. A summary of present solar dynamic and power management and distribution systems is also given.

Baraona, Cosmo R.

1987-01-01

344

Space water electrolysis: Space Station through advance missions  

Microsoft Academic Search

Static Feed Electrolyzer (SFE) technology can satisfy the need for oxygen (O2) and Hydrogen (H2) in the Space Station Freedom and future advanced missions. The efficiency with which the SFE technology can be used to generate O2 and H2 is one of its major advantages. In fact, the SFE is baselined for the Oxygen Generation Assembly within the Space Station

Ronald J. Davenport; Franz H. Schubert; David J. Grigger

1991-01-01

345

Space Station fluid resupply  

NASA Astrophysics Data System (ADS)

Viewgraphs on space station fluid resupply are presented. Space Station Freedom is resupplied with supercritical O2 and N2 for the ECLSS and USL on a 180 day resupply cycle. Resupply fluids are stored in the subcarriers on station between resupply cycles and transferred to the users as required. ECLSS contingency fluids (O2 and N2) are supplied and stored on station in a gaseous state. Efficiency and flexibility are major design considerations. Subcarrier approach allows multiple manifest combinations. Growth is achieved by adding modular subcarriers.

Winters, Al

346

M Station, Austin  

E-print Network

-1/2 Acres Buildable Boggy Creek Floodplain 8.5 ACRE SITE 5-1/2 Acres Buildable Boggy Creek Floodplain 4 Acres Concrete Abandoned Grayfield M STATION 80% 2 & 3-Bedrooms 150 1,2 & 3-Bedroom Apts M STATION 80% 2 & 3-Bedrooms 150 1,2 & 3-Bedroom Apts...-1/2 Acres Buildable Boggy Creek Floodplain 8.5 ACRE SITE 5-1/2 Acres Buildable Boggy Creek Floodplain 4 Acres Concrete Abandoned Grayfield M STATION 80% 2 & 3-Bedrooms 150 1,2 & 3-Bedroom Apts M STATION 80% 2 & 3-Bedrooms 150 1,2 & 3-Bedroom Apts...

Mathon, S.

2011-01-01

347

Station Crew Celebrates Christmas  

NASA Video Gallery

Aboard the orbiting International Space Station, Expedition 34 Commander Kevin Ford, Russian Flight Engineers Oleg Novitskiy, Evgeny Tarelkin and Roman Romanenko, NASA Flight Engineer Tom Marshburn...

348

The Space Station era  

NASA Technical Reports Server (NTRS)

The users, configuration, and uses of the manned Space Station planned by the U.S. are outlined. The station is to be operational by 1994 and will serve scientific and commercial purposes. It is noted that the exploration of space, like the exploration of any other newly discovered, remote territory, requires the establishment of a base camp. Invitations have been extended to friendly nations to share in the construction and research capabilities of the station. The Space Station will be used for experiments, earth and stellar observations, vehicle maintenance, spacecraft and instrument assembly, storage, and relay and manufacturing.

Beggs, J. M.

1984-01-01

349

Proposal for a remotely manned space station  

NASA Technical Reports Server (NTRS)

The United States is in trouble in space. The costs of the proposed Space Station Freedom have grown beyond reach, and the present design is obsolete. The trouble has come from imagining that there are only two alternatives: manned vs. unmanned. Both choices have led us into designs that do not appear to be practical. On one side, the United States simply does not possess the robotic technology needed to operate or assemble a sophisticated unmanned space station. On the other side, the manned designs that are now under way seem far too costly and dangerous, with all of its thousands of extravehicular activity (EVA) hours. More would be accomplished at far less cost by proceeding in a different way. The design of a space station made of modular, Erector Set-like parts is proposed which is to be assembled using earth-based remotely-controlled binary-tree telerobots. Earth-based workers could be trained to build the station in space using simulators. A small preassembled spacecraft would be launched with a few telerobots, and then, telerobots could be ferried into orbit along with stocks of additional parts. Trained terrestrial workers would remotely assemble a larger station, and materials for additional power and life support systems could be launched. Finally, human scientists and explorers could be sent to the space station. Other aspects of such a space station program are discussed.

Minsky, Marvin

1990-01-01

350

Hydrogen Generator  

NASA Technical Reports Server (NTRS)

A unit for producing hydrogen on site is used by a New Jersey Electric Company. The hydrogen is used as a coolant for the station's large generator; on-site production eliminates the need for weekly hydrogen deliveries. High purity hydrogen is generated by water electrolysis. The electrolyte is solid plastic and the control system is electronic. The technology was originally developed for the Gemini spacecraft.

1983-01-01

351

Space Station crew safety alternatives study. Volume 5: Space Station safety plan  

NASA Technical Reports Server (NTRS)

The Space Station Safety Plan has been prepared as an adjunct to the subject contract final report, suggesting the tasks and implementation procedures to ensure that threats are addressed and resolution strategy options identified and incorporated into the space station program. The safety program's approach is to realize minimum risk exposure without levying undue design and operational constraints. Safety objectives and risk acceptances are discussed.

Mead, G. H.; Peercy, R. L., Jr.; Raasch, R. F.

1985-01-01

352

Final environmental assessment and Finding-of-No-Significant-Impact - drum storage facility for interim storage of materials generated by environmental restoration operations  

SciTech Connect

The Department of Energy (DOE) has prepared an Environmental Assessment (EA), DOE/EA-0995, for the construction and operation of a drum storage facility at Rocky Flats Environmental Technology Site, Golden, Colorado. The proposal for construction of the facility was generated in response to current and anticipated future needs for interim storage of waste materials generated by environmental restoration operations. A public meeting was held on July 20, 1994, at which the scope and analyses of the EA were presented. The scope of the EA included evaluation of alternative methods of storage, including no action. A comment period from July 5, 1994 through August 4, 1994, was provided to the public and the State of Colorado to submit written comment on the EA. No written comments were received regarding this proposed action, therefore no comment response is included in the Final EA. Based on the analyses in the EA, DOE has determined that the proposed action would not significantly affect the quality of the human environment within the meaning of the National Environmental Policy Act of 1969 (NEPA). Therefore, preparation of an Environmental Impact Statement is not required and the Department is issuing this Finding of No Significant Impact.

Not Available

1994-09-01

353

ViewStationTM ViewStation  

E-print Network

system to include an embedded Web server and Web-based integrated presentation system. This unique monitor Auto-PIP system Auto-on, Auto-swap, Auto-off Composite connector RCA phono S-Video Mini-DIN Video of other high-end group systems. ViewStation is one of the first systems to implement the H.263 video

Pfeifer, Holger

354

Wilson Botanical Garden Las Cruces Biological Station  

E-print Network

Wilson Botanical Garden Las Cruces Biological Station Apdo. 73-8257 San Vito, Coto Brus, COSTA RICA you can do to help at the Wilson Botanical Garden, please email us at lcruces@ots.ac.cr. Tree Tour finally finished the Wilson Botanical Garden Tree Tour booklet in both Spanish and English. The self

Sekercioglu, Cagan Hakki

355

Future Weather Station  

NSDL National Science Digital Library

In this activity students build dioramas of futuristic weather stations to demonstrate their knowledge of weather forecasting. They will work in groups to research modern forecasting equipment and techniques, and then build a weather station that will do something we cannot do at present (such as stopping tornadoes). They will present their dioramas and then discuss the pros and cons of controlling the weather.

356

Weather Stations: Storms  

NSDL National Science Digital Library

In this activity, learners test how cornstarch and glitter in water move when disturbed. Learners compare their observations with videos of Jupiter's and Earth's storm movements. This activity is one station that can be combined with other stations for an hour and half lesson on weather patterns on Jupiter and Earth.

Institute, Lunar A.; Nasa

2011-01-01

357

Space station dynamics  

NASA Technical Reports Server (NTRS)

Structural dynamic characteristics and responses of the Space Station due to the natural and induced environment are discussed. Problems that are peculiar to the Space Station are also discussed. These factors lead to an overall acceleration environment that users may expect. This acceleration environment can be considered as a loading, as well as a disturbance environment.

Berka, Reg

1990-01-01

358

PFR station control system  

Microsoft Academic Search

From international nuclear industries fair; Basel, Switzeriand (16 Oct ; 1972). The control system of PFR is no different in principle to that of any ; other nuclear power station although the data display and data reduction system ; is relatively novel. It is similar to that being provided for other nuclear ; stations currently under construction. Attention is drawn

P. W. Mummery; A. D. Evans; F. J. Barclay

1972-01-01

359

"Inventive" Learning Stations  

ERIC Educational Resources Information Center

Learning stations can be used for myriad purposes--to teach concepts, integrate subject matter, build interest, and allow for inquiry--the possibilities are limited only by the imagination of the teacher and the supplies available. In this article, the author shares suggestions and a checklist for setting up successful learning stations. In…

Jarrett, Olga

2010-01-01

360

Sol Station: Sol  

NSDL National Science Digital Library

This site from Sol Station contains much information on the Sun, its history, and its future. Special emphasis is placed on how the Sun produces an environment on Earth that is suitable for life. The site is illustrated with many images, charts, and several videos. Also provided are links to Sol Station sites on the planets and nearby stars.

2006-11-25

361

A Proposal for an ALPs-Chameleon Experiments Station  

E-print Network

It is generally accepted that certain astronomical and cosmological observations can be explained by invoking the concepts of Dark Matter and Dark Energy (DM/DE). Applying straightforward extensions of the Standard Model to DM/DE, results in scalar fi?elds and predictions of particles generation via photo-magnetic coupling . Under the right conditions, these particles should be observable in earth-bound laboratory settings. Although many attempts have been made to observe these particles, none have succeeded. Heretofore, most searches have focused on detecting multi-GeV Dark Matter WIMPS. Recently, however, searches have been conducted in the lighter dark matter, sub-eV, WISP mass range. By comparison, little has been done to search for dark energy particles. The ALPs-Chameleon Experiments Stations (ACES) program, described herein, proposes a compact station that would search for both dark sector particles. Finally, it is noted that both "species" of particles - dark energy and dark matter - could be generated at the same time in the same magnetic ?field with the possibility of interaction between DM and DE particles. Thus, by using standard matter tools to produce particles from both dark sectors, ACES potentially could provide tri-sector discoveries with huge results for very little investment.

James R. Boyce; Andrei Afanasev; Oliver Keith Baker; Michelle Shinn

2014-03-25

362

A Proposal for an ALPs-Chameleon Experiments Station  

E-print Network

It is generally accepted that certain astronomical and cosmological observations can be explained by invoking the concepts of Dark Matter and Dark Energy (DM/DE). Applying straightforward extensions of the Standard Model to DM/DE, results in scalar fi?elds and predictions of particles generation via photo-magnetic coupling . Under the right conditions, these particles should be observable in earth-bound laboratory settings. Although many attempts have been made to observe these particles, none have succeeded. Heretofore, most searches have focused on detecting multi-GeV Dark Matter WIMPS. Recently, however, searches have been conducted in the lighter dark matter, sub-eV, WISP mass range. By comparison, little has been done to search for dark energy particles. The ALPs-Chameleon Experiments Stations (ACES) program, described herein, proposes a compact station that would search for both dark sector particles. Finally, it is noted that both "species" of particles - dark energy and dark matter - could be generate...

Boyce, James R; Baker, Oliver Keith; Shinn, Michelle

2014-01-01

363

Dextre: Improving maintenance operations on the International Space Station  

Microsoft Academic Search

The Special Purpose Dexterous Manipulator (SPDM), known as “Dextre”, is currently slated to launch in February 2008 for deployment on the International Space Station (ISS) as the final component of Canada's Mobile Servicing System (MSS). Dextre's primary role on the Space Station is to perform repair and replacement (R&R) maintenance tasks on robotically compatible hardware such as Orbital Replaceable Units

Elliott Coleshill; Layi Oshinowo; Richard Rembala; Bardia Bina; Daniel Rey; Shelley Sindelar

2009-01-01

364

Space station automation study: Autonomous systems and assembly, volume 2  

NASA Technical Reports Server (NTRS)

This final report, prepared by Martin Marietta Denver Aerospace, provides the technical results of their input to the Space Station Automation Study, the purpose of which is to develop informed technical guidance in the use of autonomous systems to implement space station functions, many of which can be programmed in advance and are well suited for automated systems.

Bradford, K. Z.

1984-01-01

365

77 FR 18869 - Cable Statutory License: Specialty Station List  

Federal Register 2010, 2011, 2012, 2013

...Final Specialty Station List CBAFT, Moncton, New Brunswick, Canada CBFT, Montreal, Quebec, Canada CBKFT, Regina, Saskatchewan, Canada CBLFT, Toronto, Ontario, Canada CBOFT, Ottawa, Ontario, Canada CBUFT, Vancouver, British Columbia,...

2012-03-28

366

Evaluation of Station Post Porcelain Insulators with Room Temperature  

E-print Network

Evaluation of Station Post Porcelain Insulators with Room Temperature Vulcanized (RTV) Silicone Temperature Vulcanized (RTV) Silicone Rubber Coating Final Project Report Ravi Gorur, Project Leader Arizona grease, oils and room temperature vulcanized (RTV) silicone rubber material, fluorinated compounds

367

47 CFR 73.877 - Station logs for LPFM stations.  

Code of Federal Regulations, 2012 CFR

...Section 73.877 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES Low Power FM Broadcast Stations (LPFM) § 73.877 Station logs for LPFM stations. The...

2012-10-01

368

47 CFR 73.877 - Station logs for LPFM stations.  

Code of Federal Regulations, 2011 CFR

...Section 73.877 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES Low Power FM Broadcast Stations (LPFM) § 73.877 Station logs for LPFM stations. The...

2011-10-01

369

47 CFR 73.877 - Station logs for LPFM stations.  

Code of Federal Regulations, 2013 CFR

...Section 73.877 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES Low Power FM Broadcast Stations (LPFM) § 73.877 Station logs for LPFM stations. The...

2013-10-01

370

47 CFR 73.877 - Station logs for LPFM stations.  

Code of Federal Regulations, 2010 CFR

...Section 73.877 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES Low Power FM Broadcast Stations (LPFM) § 73.877 Station logs for LPFM stations. The...

2010-10-01

371

Operational test report for 241-AW tank inlet air control stations  

SciTech Connect

This document reports the results of operational testing on tank inlet air control stations in 241-AW tank farm. An air control station was installed on each of the six AW tanks. Operational testing consisted of a simple functional test of each station`s air flow controller, aerosol testing of each station`s HEPA filter, and final ventilation system balancing (i.e., tank airflows and vacuum level) using the air control stations. The test was successful and the units were subsequently placed into operation.

Minteer, D.J., Westinghouse Hanford

1996-07-03

372

The space station  

NASA Technical Reports Server (NTRS)

Conceived since the beginning of time, living in space is no longer a dream but rather a very near reality. The concept of a Space Station is not a new one, but a redefined one. Many investigations on the kinds of experiments and work assignments the Space Station will need to accommodate have been completed, but NASA specialists are constantly talking with potential users of the Station to learn more about the work they, the users, want to do in space. Present configurations are examined along with possible new ones.

Munoz, Abraham

1988-01-01

373

Space Station Induced Monitoring  

NASA Technical Reports Server (NTRS)

This report contains the results of a conference convened May 10-11, 1988, to review plans for monitoring the Space Station induced environment, to recommend primary components of an induced environment monitoring package, and to make recommendations pertaining to suggested modifications of the Space Station External Contamination Control Requirements Document JSC 30426. The contents of this report are divided as Follows: Monitoring Induced Environment - Space Station Work Packages Requirements, Neutral Environment, Photon Emission Environment, Particulate Environment, Surface Deposition/Contamination; and Contamination Control Requirements.

Spann, James F. (editor); Torr, Marsha R. (editor)

1988-01-01

374

Madrid space station  

NASA Technical Reports Server (NTRS)

The Madrid space station, operated under bilateral agreements between the governments of the United States and Spain, is described in both Spanish and English. The space station utilizes two tracking and data acquisition networks: the Deep Space Network (DSN) of the National Aeronautics and Space Administration and the Spaceflight Tracking and Data Network (STDN) operated under the direction of the Goddard Space Flight Center. The station, which is staffed by Spanish employees, comprises four facilities: Robledo 1, Cebreros, and Fresnedillas-Navalagamella, all with 26-meter-diameter antennas, and Robledo 2, with a 64-meter antenna.

Fahnestock, R. J.; Renzetti, N. A.

1975-01-01

375

Space Station Live! Tour  

NASA Video Gallery

NASA is using the Internet and smartphones to provide the public with a new inside look at what happens aboard the International Space Station and in the Mission Control Center. NASA Public Affairs...

376

Station Commander Praises AMS  

NASA Video Gallery

When asked what's the most important International Space Station experiment, Commander Chris Hadfield names the Alpha Magnetic Spectrometer-2, a state-of-the-art particle physics detector that coul...

377

Space Station Software Recommendations  

NASA Technical Reports Server (NTRS)

Four panels of invited experts and NASA representatives focused on the following topics: software management, software development environment, languages, and software standards. Each panel deliberated in private, held two open sessions with audience participation, and developed recommendations for the NASA Space Station Program. The major thrusts of the recommendations were as follows: (1) The software management plan should establish policies, responsibilities, and decision points for software acquisition; (2) NASA should furnish a uniform modular software support environment and require its use for all space station software acquired (or developed); (3) The language Ada should be selected for space station software, and NASA should begin to address issues related to the effective use of Ada; and (4) The space station software standards should be selected (based upon existing standards where possible), and an organization should be identified to promulgate and enforce them. These and related recommendations are described in detail in the conference proceedings.

Voigt, S. (editor)

1985-01-01

378

Hallett Station Cleanup  

NSF Publications Database

... FINDING OF NO SIGNIFICANT AND NOT GREATER THAN MINOR OR TRANSITORY IMPACT Hallett Station Cleanup - ... the action one which would have a greater than minor or transitory effect on the Antarctic ...

379

MOUNTAIN LAKE BIOLOGICAL STATION  

E-print Network

MOUNTAIN LAKE BIOLOGICAL STATION USER HANDBOOK Updated: 07Mar2013 For the most Events . . . 15 Volunteer Ac vi es . . . 15 Recrea on . . . . . 16 Safety, and the logis cal support necessary for a wide variety of research and teaching programs. MLBS

Acton, Scott

380

CTA STATION TAYLOR STREET  

E-print Network

Molecular Biology Research Building Medical Center Administration Building College of Medicine West TowerCTA STATION DISTRICT MEDICAL ILLINOIS TAYLOR STREET . GRENSHAW STREET HAMILTONAVENUE HOYNESTREET Sciences Medical Sciences Building College of Medicine Research Building Marshfield Avenue Building

Illinois at Chicago, University of

381

CTA STATION TAYLOR STREET  

E-print Network

Building Molecular Biology Research Building Medical Center Administration Building College of MedicineCTA STATION DISTRICT MEDICAL ILLINOIS TAYLOR STREET HAMILTONAVENUE HOYNESTREET WASHBURNE ROOSEVELT of the Health Sciences Medical Sciences Building College of Medicine Research Building Marshfield Avenue

Illinois at Chicago, University of

382

Space station propulsion technology  

NASA Technical Reports Server (NTRS)

The progress on the Space Station Propulsion Technology Program is described. The objectives are to provide a demonstration of hydrogen/oxygen propulsion technology readiness for the Initial Operating Capability (IOC) space station application, specifically gaseous hydrogen/oxygen and warm hydrogen thruster concepts, and to establish a means for evolving from the IOC space station propulsion to that required to support and interface with advanced station functions. The evaluation of concepts was completed. The accumulator module of the test bed was completed and, with the microprocessor controller, delivered to NASA-MSFC. An oxygen/hydrogen thruster was modified for use with the test bed and successfully tested at mixture ratios from 4:1 to 8:1.

Briley, G. L.

1986-01-01

383

Magnetic Repeat Station Data  

NASA Technical Reports Server (NTRS)

The nature, purpose, availability and distribution of magnetic repeat stations data are reviewed. Attention is paid to how repeat station data are obtained, sources of errors and limitations on accuracy. Repeat station results cannot achieve the accuracy of magnetic observatory estimates of the secular variation, but are, nevertheless, essential for improving the limited spatial coverage provided by observatories. The lack of appropriate standards and reporting procedures have meant that most global field molders have made little, or no, use of repeat data. Partly to rectify this problem, IAGA Working Group V-4 has instigated a scheme for systematic reporting and classification of magnetic repeat station data. The scheme will help to ensure that proper use is made of the wealth of repeat data that is available, and will also promote better observational practices.

Barton, C. E.

1992-01-01

384

GNSS station displacement analysis  

NASA Astrophysics Data System (ADS)

Time series of GNSS station results of both the EUPOS®-Riga and LatPos networks have been developed at the Institute of Geodesy and Geoinformation (University of Latvia). The reference stations from EUREF Permanent Network (EPN) in surroundings of Latvia have been used and Bernese GPS Software, Version 5.0, in both static and kinematic modes was applied. The standard data sets were taken from IGS data base. The results of time series have been analysed and distinctive behaviour of daily and subdaily movements of EUPOS®-Riga and LatPos stations was identified. The reasons of dependence of GNSS station coordinate distribution on possible external factors such as seismic activity of some areas of Latvia and periodic processes were given.

Haritonova, Diana; Balodis, Janis; Janpaule, Inese; Normand, Madara

2013-04-01

385

Palmer Automatic Weather Station  

NSF Publications Database

... EAM NSF Org: OD / OPP Date : December 06, 1991 File : opp93040 DIVISION OF POLAR PROGRAMS OFFICE OF ... Palmer Automatic Weather Station) To: Files (S.7 - Environment) This Environmental Action Memorandum ...

386

Destination Station Atlanta  

NASA Video Gallery

Destination Station was recently in Atlanta from April 15 through April 21. During the week, NASA visited schools, hospitals, museums, and the cityâ??s well known Atlanta Science Tavern Meet Up gro...

387

The Space Station Chronicles  

NASA Video Gallery

As early as the nineteenth century, writers and artists and scientists around the world began to publish their visions of a crewed outpost in space. Learn about the history of space stations, from ...

388

Space Stations: Measure Up!  

NSDL National Science Digital Library

In this activity, learners work in pairs to measure each other's ankles with lengths of string. Learners make measurements both before and after lying on their backs with their feet in the air for 1 minute. This simulates the microgravity of space, where everything--including body fluids--floats! This activity station is part of a sequence of stations that can be set up to help learners explore how space affects the human body and why.

Byerly, Diane; Institute, Lunar A.

2006-01-01

389

Space Station galley design  

NASA Technical Reports Server (NTRS)

An Advanced Food Hardware System galley for the initial operating capability (IOC) Space Station is discussed. Space Station will employ food hardware items that have never been flown in space, such as a dishwasher, microwave oven, blender/mixer, bulk food and beverage dispensers, automated food inventory management, a trash compactor, and an advanced technology refrigerator/freezer. These new technologies and designs are described and the trades, design, development, and testing associated with each are summarized.

Trabanino, Rudy; Murphy, George L.; Yakut, M. M.

1986-01-01

390

Retrieval of Intermediate Level Waste at Trawsfyndd Nuclear Power Station  

SciTech Connect

In 1996 RWE NUKEM Limited were awarded two contracts by BNFL Magnox Generation as part of the decommissioning programme for the Trawsfynydd power station. From the normal operations of the two Magnox reactors, intermediate level waste (ILW) had accumulated on site, this was Miscellaneous Activated Components (MAC) and Fuel Element Debris (FED). The objective of these projects is retrieval of the waste from storage vaults, monitoring, packaging and immobilization in a form suitable for on site storage in the medium term and eventual disposal to a waste repository. The projects involve the design, supply, commissioning and operation of equipment to retrieve, pack and immobilize the waste, this includes recovery from vaults in both reactor and pond locations and final decommissioning and removal of plant from site after completion of waste recovery.

Wall, S.; Shaw, I.

2002-02-25

391

76 FR 59745 - Virginia Electric and Power Company; North Anna Power Station, Unit Nos. 1 and 2; Exemption  

Federal Register 2010, 2011, 2012, 2013

...NUREG-1474, ``Effect of Hurricane Andrew on the Turkey Point Nuclear Generating Station from August 20- 30, 1992...NUREG-1474, ``Effect of Hurricane Andrew on the Turkey Point Nuclear Generating Station from August 20-30,...

2011-09-27

392

Two-station Rayleigh and Love surface wave phase velocities between stations in Europe  

NASA Astrophysics Data System (ADS)

We study the Rayleigh and Love surface wave fundamental mode propagation beneath the continental Europe and examine inter-station phase velocities employing a two-station method for which the source code developed by Herrmann (1987) is utilized. In the two-station method, the near-station waveform is deconvolved from the far-station waveform removing the propagation effects between the source and the near-station. This method requires that the near and far stations are aligned with the epicentre on a common great circle path for which we impose the condition that the azimuthal difference of the earthquake to the two stations and the azimuthal difference between the earthquake to the near-station and the near-station to the far-station are smaller than 5o. From the IRIS and ORFEUS databases, we visually select 3002 teleseismic, moderate-to-large magnitude (i.e.Mw? 5.7) events recorded by 255 broadband European stations with high signal-to-noise ratio within the years 1990-2011. Corrected for the instrument response, suitable seismogram pairs are analyzed with the two-station method yielding a collection of phase velocity curves in various periods ranges (mainly in the range 25-185 s). Diffraction from lateral heterogeneities, multipathing, interference of Rayleigh and Love waves can alter the dispersion measurements. In order to secure the quality of measurements we select only smooth portions of the phase velocity curves, remove outliers and average over many measurements. We finally discard these average phase velocity curves suspected of suffering from phase wrapping errors by comparing them with a reference Earth model (i.e. IASP91 by Kennett and Engdahl 1991). The outlined analysis procedure yields 5109 Rayleigh and 4146 Love individual phase velocity curves. The azimuthal coverage of the respective two-station paths is proper to analyze the observed dispersion curves in terms of both azimuthal and radial anisotropy beneath the study region. This work is supported by Turkish Scientific and Technical Research Council (TUBITAK) (project number 109Y345).

Çak?r, Ö.; Erduran, A.; K?rkaya, E.; Kutlu, Y. A.; Erduran, M.

2012-04-01

393

Pumping Station for Fresh Water Supply  

Microsoft Academic Search

The Zambelli photovoltaic pumping station supplies drinking water to the Lessinia mountain area near Verona. The specific design of this stand alone plant is characterized by direct connection, i.e. without intermediate battery storage, between PV-generator and the variable frequency inverters powering two asynchrone motored piston pumps. Completely automatic operation, including maximum power tracking, is assured by a process controller providing

S. Merlina; G. Peluso; C. Rossati; A. Sorokin

1985-01-01

394

Vibrations and structureborne noise in space station  

NASA Technical Reports Server (NTRS)

The related literature was reviewed and a preliminary analytical model was developed for simplified acoustic and structural geometries for pressurized and unpressurized space station modules. In addition to the analytical work, an experimental program on structureborne noise generation and transmission was started. A brief review of those accomplishments is given.

Vaicaitis, R.

1985-01-01

395

Preprint version, final version at http://ieeexplore.ieee.org/ 2014 IEEE Int. Conf. on Robotics and Automation, Hong Kong, China Semi-autonomous Trajectory Generation for Mobile Robots  

E-print Network

Preprint version, final version at http://ieeexplore.ieee.org/ 2014 IEEE Int. Conf. on Robotics and Automation, Hong Kong, China Semi-autonomous Trajectory Generation for Mobile Robots with Integral Haptic-- A new framework for semi-autonomous path plan- ning for mobile robots that extends the classical

396

Lightning Location With Single-Station Observation of VLF Spherics  

Microsoft Academic Search

Most of the lightning location systems recently available require the simultaneous reception of lightning-generated radio pulses (spherics) at multiple stations. In this work, we develop a lightning location system to determine both the direction and range of a lightning stroke with a single-station observation of VLF spherics. The technique used here is a rather classical one, but we try to

I. Nagano; S. Yagitani; H. Komonmae; N. Takezono

2001-01-01

397

Transfer stations and long-haul transport systems  

Microsoft Academic Search

Transfer stations can be an important link between pickup at the curb and ultimate disposal, often allowing significant savings in the total costs to move wastes from the generator to the disposal site. A transfer station is simply a facility where collection trucks bring collected materials for loading into larger vehicles and subsequent shipment, usually to a landfill, waste-to-energy plant,

P. Walsh; W. Pferdehirt; P. OLeary

1993-01-01

398

51. Photocopy of diagram (from Station 'L' office files, Portland, ...  

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

51. Photocopy of diagram (from Station 'L' office files, Portland, Oregon) General Electric Company pamphlet, c.1923 SECTIONAL ARRANGEMENT OF THE 6,000 KW TURBINE GENERATOR BUILDING L1 - Portland General Electric Company, Station "L", 1841 Southeast Water Street, Portland, Multnomah County, OR

399

54. Photocopy of diagram (from Station 'L' office files, Portland, ...  

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

54. Photocopy of diagram (from Station 'L' office files, Portland, Oregon) General Electric Company pamphlet, c.1930 SECTIONAL ELEVATION OF THE 35,000 KW GENERATOR BUILDING L5 - Portland General Electric Company, Station "L", 1841 Southeast Water Street, Portland, Multnomah County, OR

400

53. Photocopy of diagram (from Station 'L' office files, Portland, ...  

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

53. Photocopy of diagram (from Station 'L' office files, Portland, Oregon) General Electric Company pamphlet, c.1925 SECTIONAL ELEVATION OF THE 20,000 KW GENERATOR BUILDING L1 - Portland General Electric Company, Station "L", 1841 Southeast Water Street, Portland, Multnomah County, OR

401

Development and field testing of a process for recovering heavy crude oil in the Carlyle pool-Allen County, Kansas using the Vapor Therm generator. Final report  

SciTech Connect

A Vapor Therm generator capable of producing steam and inert gases was built for conditions encountered in the Carlyle pool, and is capable of delivering heated gases at 900 psi and 700/sup 0/F. New wells were drilled in a five spot pattern with an inter-well distance of 208.7 ft. Logs and cores from these new wells were obtained and the subsurface reservoir was evaluated. Oil content of 1197 BSTO/Ac-Ft was encountered. This oil was 19.5/sup 0/ API with a viscosity of 1026 cps at 70/sup 0/F. The net pay thickness beneath the pattern exceeded thirty-five feet. Bartlesville sand porosity was 23.6% and absolute permeability was 695 md. Initial reservoir pressure was 235 psi. The oil reservoir is underlain by an extensive aquifer whose thickness exceeds one hundred feet. On January 31, 1977, the first of four stimulation cycles in the Bartleville sand was begun. The final cycle was concluded on March 5, 1978. During these months of cyclic stimulation-production, the wells produced at a sustained average rate of 7.82 BSTO/day and a water/oil ratio of 1.3. Over three barrels of oil per barrel of steam injected was recovered on the 4th cycle. Maximum production rate is 151 BSTO/well/week. Total oil production during the four cycles was 9034 barrels of stock tank oil, indicating an enhanced recovery of 6.04% of original oil in place or 71.2 BSTO/Ac-Ft.

Sperry, J.S.

1980-09-01

402

Ground station siting considerations for DGPS  

NASA Technical Reports Server (NTRS)

Aircraft guidance and positioning in the final approach and landing phases of flight requires a high degree of accuracy. The Global Positioning System operating in differential mode (DGPS) is being considered for this application. Prior to implementation, all sources of error must be considered. Multipath was shown to be the dominant source of error for DGPS and theoretical studies verified that multipath is particularly severe within the final approach and landing regions. Because of aircraft dynamics, the ground station segment of DGPS is the part of the system where multipath can most effectively be reduced. Ground station siting will be a key element in reducing multipath errors for DGPS system. This situation can also be improved by using P-code or narrow correlator C/A-code receivers along with a multipath rejecting antenna. A study of GPS multipath errors for a stationary DGPS ground station is presented. A discussion of GPS multipath error characteristics are presented along with some actual multipath data. The data was collected for different ground station siting configurations using P-code, standard C/A-code, and narrow correlator C/A-code receiver architectures and two separate antenna constructions.

Waid, James D.

1994-01-01

403

75 FR 75706 - Dresden Nuclear Power Station, Units 2 and 3 and Quad Cities Nuclear Power Station, Unit Nos. 1...  

Federal Register 2010, 2011, 2012, 2013

...and 3 and Quad Cities Nuclear Power Station, Unit...License The U.S. Nuclear Regulatory Commission...the request of Exelon Generation Company, LLC (the...DPR-25 for Dresden Nuclear Power Station, Units...Division of Operating Reactor Licensing, Office...

2010-12-06

404

Space station structures development  

NASA Technical Reports Server (NTRS)

A study of three interrelated tasks focusing on deployable Space Station truss structures is discussed. Task 1, the development of an alternate deployment system for linear truss, resulted in the preliminary design of an in-space reloadable linear motor deployer. Task 2, advanced composites deployable truss development, resulted in the testing and evaluation of composite materials for struts used in a deployable linear truss. Task 3, assembly of structures in space/erectable structures, resulted in the preliminary design of Space Station pressurized module support structures. An independent, redundant support system was developed for the common United States modules.

Teller, V. B.

1986-01-01

405

Weather Stations: Phase Change  

NSDL National Science Digital Library

In this activity, learners observe the water cycle in action! Water vapor in a tumbler condenses on chilled aluminum foil â producing the liquid form of water familiar to us as rain and dew. Learners discuss how Jupiter's lack of a surface simplifies its water cycle. Learners then consider the roles ammonia and ammonia compounds play in Jupiter's more complicated atmosphere. This activity is one station that can be combined with other stations for an hour and half lesson on weather patterns on Jupiter and Earth.

Institute, Lunar A.; Nasa

2011-01-01

406

The organized Space Station  

NASA Technical Reports Server (NTRS)

Space Station organization designers should consider the onboard stowage system to be an integral part of the environment structured for productive working conditions. In order to achieve this, it is essential to use an efficient inventory control system able to track approximately 50,000 items over a 90-day period, while maintaining peak crew performance. It is noted that a state-of-the-art bar-code inventory management system cannot satisfy all Space Station requirements, such as the location of a critical missing item.

Lew, Leong W.

1988-01-01

407

The organized Space Station  

NASA Astrophysics Data System (ADS)

Space Station organization designers should consider the onboard stowage system to be an integral part of the environment structured for productive working conditions. In order to achieve this, it is essential to use an efficient inventory control system able to track approximately 50,000 items over a 90-day period, while maintaining peak crew performance. It is noted that a state-of-the-art bar-code inventory management system cannot satisfy all Space Station requirements, such as the location of a critical missing item.

Lew, Leong W.

408

Space Station habitability research  

NASA Technical Reports Server (NTRS)

The purpose and scope of the Habitability Research Group within the Space Human Factors Office at the NASA/Ames Research Cente is described. Both near-term and long-term research objectives in the space human factors program pertaining to the U.S. manned Space Station are introduced. The concept of habitability and its relevancy to the U.S. space program is defined within a historical context. The relationship of habitability research to the optimization of environmental and operational determinants of productivity is discussed. Ongoing habitability research efforts pertaining to living and working on the Space Station are described.

Clearwater, Y. A.

1986-01-01

409

Space Station Habitability Research  

NASA Technical Reports Server (NTRS)

The purpose and scope of the Habitability Research Group within the Space Human Factors Office at the NASA/Ames Research Center is described. Both near-term and long-term research objectives in the space human factors program pertaining to the U.S. manned Space Station are introduced. The concept of habitability and its relevancy to the U.S. space program is defined within a historical context. The relationship of habitability research to the optimization of environmental and operational determinants of productivity is discussed. Ongoing habitability research efforts pertaining to living and working on the Space Station are described.

Clearwater, Yvonne A.

1988-01-01

410

Station blackout calculations for Browns Ferry  

SciTech Connect

This paper presents the results of calculations performed with the ORNL SASA code suite for the Station Blackout Severe Accident Sequence at Browns Ferry. The accident is initiated by a loss of offsite power combined with failure of all onsite emergency diesel generators to start and load. The Station Blackout is assumed to persist beyond the point of battery exhaustion (at six hours) and without DC power, cooling water could no longer be injected into the reactor vessel. Calculations are continued through the period of core degradation and melting, reactor vessel failure, and the subsequent containment failure. An estimate of the magnitude and timing of the concomitant fission product releases is also provided.

Ott, L.J.; Weber, C.F.; Hyman, C.R.

1985-01-01

411

Installation of Ohio's First Electrolysis-Based Hydrogen Fueling Station  

NASA Technical Reports Server (NTRS)

This paper describes progress made towards the installation of a hydrogen fueling station in Northeast Ohio. In collaboration with several entities in the Northeast Ohio area, the NASA Glenn Research Center is installing a hydrogen fueling station that uses electrolysis to generate hydrogen on-site. The installation of this station is scheduled for the spring of 2012 at the Greater Cleveland Regional Transit Authority s Hayden bus garage in East Cleveland. This will be the first electrolysis-based hydrogen fueling station in Ohio.

Scheidegger, Brianne T.; Lively, Michael L.

2012-01-01

412

An automatic repeater station for signal transmissions  

NASA Astrophysics Data System (ADS)

An automatic repeater station, sometimes called a relay system, is disclosed. The relay system receives signals, preferably at one band of frequencies, then filters and restores their inherent information, and finally transmits the restored information, preferably at another band of frequencies. Unlike the prior art systems utilizing transceivers and electronically tunable filters, the present invention uses separate receivers and transmitters and is devoid of electronically tunable filters.

Bancroft, Douglas; Levy, Yoram; Ressler, Elliot L.

1994-08-01

413

52. INTERIOR VIEW OF CENTRAL CONTROL STATION, FIRST FLOOR, SHOWING ...  

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

52. INTERIOR VIEW OF CENTRAL CONTROL STATION, FIRST FLOOR, SHOWING GENERATOR ENGINE AND CENTRAL CONTROL PANEL, LOOKING SOUTH - Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 5, Minneiska, Winona County, MN

414

Section C, interior of Hudson & Manhattan Railroad Station basement ...  

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

Section C, interior of Hudson & Manhattan Railroad Station basement showing generator pit, looking west. (BH) - World Trade Center Site, Bounded by Vesey, Church, Liberty Streets, & Route 9A, New York, New York County, NY

415

Designing a Weather Station  

ERIC Educational Resources Information Center

The collection and analysis of weather data is crucial to the location of alternate energy systems like solar and wind. This article presents a design challenge that gives students a chance to design a weather station to collect data in advance of a large wind turbine installation. Data analysis is a crucial part of any science or engineering…

Roman, Harry T.

2012-01-01

416

Kiowa Creek Switching Station  

SciTech Connect

The Western Area Power Administration (Western) proposes to construct, operate, and maintain a new Kiowa Creek Switching Station near Orchard in Morgan County, Colorado. Kiowa Creek Switching Station would consist of a fenced area of approximately 300 by 300 feet and contain various electrical equipment typical for a switching station. As part of this new construction, approximately one mile of an existing 115-kilovolt (kV) transmission line will be removed and replaced with a double circuit overhead line. The project will also include a short (one-third mile) realignment of an existing line to permit connection with the new switching station. In accordance with the Council on Environmental Quality (CEQ) regulations for implementing the procedural provisions of the National Environmental Policy Act of 1969 (NEPA), 40 CFR Parts 1500--1508, the Department of Energy (DOE) has determined that an environmental impact statement (EIS) is not required for the proposed project. This determination is based on the information contained in this environmental assessment (EA) prepared by Western. The EA identifies and evaluates the environmental and socioeconomic effects of the proposed action, and concludes that the advance impacts on the human environment resulting from the proposed project would not be significant. 8 refs., 3 figs., 1 tab.

Not Available

1990-03-01

417

Hydrogen Filling Station  

Microsoft Academic Search

Hydrogen is an environmentally attractive transportation fuel that has the potential to displace fossil fuels. The Freedom CAR and Freedom FUEL initiatives emphasize the importance of hydrogen as a future transportation fuel. Presently, Las Vegas has one hydrogen fueling station powered by natural gas. However, the use of traditional sources of energy to produce hydrogen does not maximize the benefit.

Robert F Boehm; Bruce Sabacky; Everett B Anderson II; David Haberman; Mowafak Al-Hassin; Xiaoming He; Brian Morriseau

2010-01-01

418

Water Exploration Station  

NSDL National Science Digital Library

In this activity (located on page 3 of the PDF), learners investigate the way water moves and how we can control and direct water. At the Water Exploration Station, learners experiment with various tools like eye droppers, sponges, turkey basters, etc. to move and play with the water. Included in this lesson guide are challenge questions intended to direct the learning.

Museum, Chicago C.

2008-01-01

419

Pacific Southwest Research Station  

E-print Network

Pacific Southwest Research Station General Technical Report PSW-GTR-245 (English) August 2013 United States Department of Agriculture Forest Service Proceedings of the Fourth International Symposium for employment on the bases of race, color, national origin, age, disability, sex, gender identity, religion

Standiford, Richard B.

420

Agricultural Experiment Station Publications  

E-print Network

, social and cultural aspects of agriculture, natural resources management and family issues, to benefit New Mexico's citizens. Off-campus centers located near Alcalde, Artesia, Clayton, Clovis, Corona, Farm the Agricultural Experiment Station, publishes research data and study results. These publications, prepared

421

Space Station structures  

NASA Technical Reports Server (NTRS)

A brief overview of some structural results that came from space station skunk works is presented. Detailed drawings of the pressurized modules, and primary truss structures such as deployable single fold beams, erectable beams and deployable double folds are given. Typical truss attachment devices and deployable backup procedures are also given.

Schneider, W.

1985-01-01

422

CTA STATION RACINE AVENUE  

E-print Network

LOT 9 ADH CUPPAH SCB RB LOT 8 BSB EPASW UICT LOT 11 HRPSPAV LOT 1B LOT 1A JAH JAHD SSB LOT 18A JJST Laboratory U8 PS Police Station R11 QUAD S6 RB Rice Building T3 RRB Roosevelt Road Building U9 SCB Sangamon

Illinois at Chicago, University of

423

CTA STATION RACINE AVENUE  

E-print Network

LIB UTB TSB LOT 20 LH DHGH SCET SRCS SRCCSRCW AA JH HH UH SH LOT 9 ADH CUPPAH SCB RB LOT 8 BSB EPASW Research Laboratory U8 PS Police Station R11 QUAD S6 RB Rice Building T3 RRB Roosevelt Road Building U9 SCB

DeMarco, Laura

424

Comparative analyses of space-to-space central power stations  

NASA Astrophysics Data System (ADS)

The technological and economical impact of a large central power station in Earth orbit on the performance and cost of future spacecraft and their orbital transfer systems are examined. It is shown that beaming power to remote users cannot be cost effective if the central power station uses the same power generation system that is readily available for provision of onboard power and microwave transmission and reception of power through space for use in space is not cost competitive with onboard power or propulsion systems. Laser and receivers are required to make central power stations feasible. Remote power transmission for propulsion of orbital transfer vehicles promises major cost benefits. Direct nuclear pumped or solar pumped laser power station concepts are attractive with laser thermal and laser electric propulsion systems. These power stations are also competitive, on a mass and cost basis, with a photovoltaic power station.

Holloway, P. F.; Garrett, L. B.

1981-12-01

425

Utility and technology for a space central power station  

NASA Astrophysics Data System (ADS)

The technological and economical impacts of a large central power station in Earth orbit on the performance and cost of future spacecraft and their orbital-transfer systems are examined. It is shown that beaming power to remote users cannot be cost-effective if the central power station uses the same power generation system that would be readily available for provision of on-board power. Laser transmitters/receivers to make central power stations feasible are considered. The cost-effectiveness of meeting Earth-orbiting spacecraft electrical demands from a central power station was analyzed, indicating that this application cannot justify the investment required for the central station. Key technology needs which must be met to enable a viable central power station in the future are identified.

Holloway, P. F.; Garrett, L. B.

1982-02-01

426

Comparative analyses of space-to-space central power stations  

NASA Technical Reports Server (NTRS)

The technological and economical impact of a large central power station in Earth orbit on the performance and cost of future spacecraft and their orbital transfer systems are examined. It is shown that beaming power to remote users cannot be cost effective if the central power station uses the same power generation system that is readily available for provision of onboard power and microwave transmission and reception of power through space for use in space is not cost competitive with onboard power or propulsion systems. Laser and receivers are required to make central power stations feasible. Remote power transmission for propulsion of orbital transfer vehicles promises major cost benefits. Direct nuclear pumped or solar pumped laser power station concepts are attractive with laser thermal and laser electric propulsion systems. These power stations are also competitive, on a mass and cost basis, with a photovoltaic power station.

Holloway, P. F.; Garrett, L. B.

1981-01-01

427

78 FR 35646 - Byron Nuclear Station, Units 1 and 2, and Braidwood Nuclear Station, Units 1 and 2  

Federal Register 2010, 2011, 2012, 2013

...Units 1 and 2 AGENCY: Nuclear Regulatory Commission...SUMMARY: The U.S. Nuclear Regulatory Commission...2013, from Exelon Generation Company, LLC, filed...licenses for the Byron Nuclear Station, Units 1 and...Office of Nuclear Reactor Regulation,...

2013-06-13

428

47 CFR 80.107 - Service of private coast stations and marine-utility stations.  

Code of Federal Regulations, 2010 CFR

...private coast stations and marine-utility stations. 80...private coast stations and marine-utility stations. A private coast station or a marine-utility station is authorized...and operational needs of ships and the safety of...

2010-10-01

429

47 CFR 80.107 - Service of private coast stations and marine-utility stations.  

Code of Federal Regulations, 2012 CFR

...private coast stations and marine-utility stations. 80...private coast stations and marine-utility stations. A private coast station or a marine-utility station is authorized...and operational needs of ships and the safety of...

2012-10-01

430

47 CFR 80.107 - Service of private coast stations and marine-utility stations.  

Code of Federal Regulations, 2011 CFR

...private coast stations and marine-utility stations. 80...private coast stations and marine-utility stations. A private coast station or a marine-utility station is authorized...and operational needs of ships and the safety of...

2011-10-01

431

Photovoltaic Power Station with Ultracapacitors for Storage  

NASA Technical Reports Server (NTRS)

A solar photovoltaic power station in which ultracapacitors, rather than batteries, are used to store energy is discussed. Developments in the semiconductor industry have reduced the cost and increased the attainable efficiency of commercially available photovoltaic panels; as a result, photovoltaic generation of power for diverse applications has become practical. Photovoltaic generation can provide electric power in remote locations where electric power would otherwise not be available. Photovoltaic generation can also afford independence from utility systems. Applications include supplying power to scientific instruments and medical equipment in isolated geographical regions.

Eichenberg, Dennis J.; Kolacz, John S.; Soltis, Richard F.; Tavernelli, Paul F.

2003-01-01

432

Space Station alpha joint bearing  

NASA Technical Reports Server (NTRS)

Perhaps the most critical structural system aboard the Space Station is the Solar Alpha Rotary Joint which helps align the power generation system with the sun. The joint must provide structural support and controlled rotation to the outboard transverse booms as well as power and data transfer across the joint. The Solar Alpha Rotary Joint is composed of two transition sections and an integral, large diameter bearing. Alpha joint bearing design presents a particularly interesting problem because of its large size and need for high reliability, stiffness, and on orbit maintability. The discrete roller bearing developed is a novel refinement to cam follower technology. It offers thermal compensation and ease of on-orbit maintenance that are not found in conventional rolling element bearings. How the bearing design evolved is summarized. Driving requirements are reviewed, alternative concepts assessed, and the selected design is described.

Everman, Michael R.; Jones, P. Alan; Spencer, Porter A.

1987-01-01

433

Revised analyses of decommissioning for the reference pressurized Water Reactor Power Station. Effects of current regulatory and other considerations on the financial assurance requirements of the decommissioning rule and on estimates of occupational radiation exposure, Volume 1, Final report  

SciTech Connect

With the issuance of the final Decommissioning Rule (July 27, 1988), owners and operators of licensed nuclear power plants are required to prepare, and submit to the US Nuclear Regulatory Commission (NRC) for review, decommissioning plans and cost estimates. The NRC staff is in need of bases documentation that will assist them in assessing the adequacy of the licensee submittals, from the viewpoint of both the planned actions, including occupational radiation exposure, and the probable costs. The purpose of this reevaluation study is to provide some of the needed bases documentation. This report contains the results of a review and reevaluation of the {prime}978 PNL decommissioning study of the Trojan nuclear power plant (NUREG/CR-0130), including all identifiable factors and cost assumptions which contribute significantly to the total cost of decommissioning the nuclear power plant for the DECON, SAFSTOR, and ENTOMB decommissioning alternatives. These alternatives now include an initial 5--7 year period during which time the spent fuel is stored in the spent fuel pool, prior to beginning major disassembly or extended safe storage of the plant. Included for information (but not presently part of the license termination cost) is an estimate of the cost to demolish the decontaminated and clean structures on the site and to restore the site to a ``green field`` condition. This report also includes consideration of the NRC requirement that decontamination and decommissioning activities leading to termination of the nuclear license be completed within 60 years of final reactor shutdown, consideration of packaging and disposal requirements for materials whose radionuclide concentrations exceed the limits for Class C low-level waste (i.e., Greater-Than-Class C), and reflects 1993 costs for labor, materials, transport, and disposal activities.

Konzek, G.J.; Smith, R.I.; Bierschbach, M.C.; McDuffie, P.N. [Pacific Northwest Lab., Richland, WA (United States)

1995-11-01

434

[Reply to “Space Station?” by L. H. Meredith] Way station  

NASA Astrophysics Data System (ADS)

I agree with Les Meredith's statement of valid and nonvalid objectives for the space station. The problem with the space station that NASA is proposing is that it is designed to a nonvalid objective, specifically microgravity experimentation. I would support a space station that addressed the valid objective of a way station, but I cannot support NASA's current design.Meredith states that the space station can only be justified as a political action by the United States to reassert its preeminence in space. Meredith lists a valid objective of creating a permanent manned presence to provide a “way station” for future Earth orbital activities and Solar System exploration. Meredith further argues that two other classes of space station objectives, namely a microgravity research and manufacturing facility and an Earth and astronomical remote sensing platform, are not valid because those activities can be better carried out by non-space station means.

Warner, Jeffrey L.

435

Hydrogen Filling Station  

SciTech Connect

Hydrogen is an environmentally attractive transportation fuel that has the potential to displace fossil fuels. The Freedom CAR and Freedom FUEL initiatives emphasize the importance of hydrogen as a future transportation fuel. Presently, Las Vegas has one hydrogen fueling station powered by natural gas. However, the use of traditional sources of energy to produce hydrogen does not maximize the benefit. The hydrogen fueling station developed under this grant used electrolysis units and solar energy to produce hydrogen fuel. Water and electricity are furnished to the unit and the output is hydrogen and oxygen. Three vehicles were converted to utilize the hydrogen produced at the station. The vehicles were all equipped with different types of technologies. The vehicles were used in the day-to-day operation of the Las Vegas Valley Water District and monitoring was performed on efficiency, reliability and maintenance requirements. The research and demonstration utilized for the reconfiguration of these vehicles could lead to new technologies in vehicle development that could make hydrogen-fueled vehicles more cost effective, economical, efficient and more widely used. In order to advance the development of a hydrogen future in Southern Nevada, project partners recognized a need to bring various entities involved in hydrogen development and deployment together as a means of sharing knowledge and eliminating duplication of efforts. A road-mapping session was held in Las Vegas in June 2006. The Nevada State Energy Office, representatives from DOE, DOE contractors and LANL, NETL, NREL were present. Leadership from the National hydrogen Association Board of Directors also attended. As a result of this session, a roadmap for hydrogen development was created. This roadmap has the ability to become a tool for use by other road-mapping efforts in the hydrogen community. It could also become a standard template for other states or even countries to approach planning for a hydrogen future. Project partners also conducted a workshop on hydrogen safety and permitting. This provided an opportunity for the various permitting agencies and end users to gather to share experiences and knowledge. As a result of this workshop, the permitting process for the hydrogen filling station on the Las Vegas Valley Water District’s land was done more efficiently and those who would be responsible for the operation were better educated on the safety and reliability of hydrogen production and storage. The lessons learned in permitting the filling station and conducting this workshop provided a basis for future hydrogen projects in the region. Continuing efforts to increase the working pressure of electrolysis and efficiency have been pursued. Research was also performed on improving the cost, efficiency and durability of Proton Exchange Membrane (PEM) hydrogen technology. Research elements focused upon PEM membranes, electrodes/catalysts, membrane-electrode assemblies, seals, bipolar plates, utilization of renewable power, reliability issues, scale, and advanced conversion topics. Additionally, direct solar-to-hydrogen conversion research to demonstrate stable and efficient photoelectrochemistry (PEC) hydrogen production systems based on a number of optional concepts was performed. Candidate PEC concepts included technical obstacles such as inefficient photocatalysis, inadequate photocurrent due to non-optimal material band gap energies, rapid electron-hole recombination, reduced hole mobility and diminished operational lifetimes of surface materials exposed to electrolytes. Project Objective 1: Design, build, operate hydrogen filling station Project Objective 2: Perform research and development for utilizing solar technologies on the hydrogen filling station and convert two utility vehicles for use by the station operators Project Objective 3: Increase capacity of hydrogen filling station; add additional vehicle; conduct safety workshop; develop a roadmap for hydrogen development; accelerate the development of photovoltaic components Project Objective 4:

Boehm, Robert F; Sabacky, Bruce; Anderson II, Everett B; Haberman, David; Al-Hassin, Mowafak; He, Xiaoming; Morriseau, Brian

2010-02-24

436

Development of Testing Station for Prototype Rover Thermal Subsystem  

NASA Technical Reports Server (NTRS)

In order to successfully and efficiently explore the moon or other planets, a vehicle must be built to assist astronauts as they travel across the surface. One concept created to meet this need is NASA's Space Exploration Vehicle (SEV). The SEV, a small pressurized cabin integrated onto a 12-wheeled chassis, can support two astronauts up to 14 days. Engineers are currently developing the second generation of the SEV, with the goal of being faster, more robust, and able to carry a heavier payload. In order to function properly, the rover must dissipate heat produced during operation and maintain an appropriate temperature profile inside the rover. If these activities do not occur, components of the rover will start to break down, eventually leading to the failure of the rover. On the rover, these requirements are the responsibility of the thermal subsystem. My project for the summer was to design and build a testing station to facilitate the design and testing of the new thermal subsystem. As the rover develops, initial low fidelity parts can be interchanged for the high fidelity parts used on the rover. Based on a schematic of the proposed thermal system, I sized and selected parts for each of the components in the thermal subsystem. For the components in the system that produced heat but had not yet been finalized or fabricated, I used power resistors to model their load patterns. I also selected all of the fittings to put the system together and a mounting platform to support the testing station. Finally, I implemented sensors at various points in the system to measure the temperature, pressure, and flow rate, and a data acquisition system to collect this information. In the future, the information from these sensors will be used to study the behavior of the subsystem under different conditions and select the best part for the rover.

Burlingame, Kaitlin

2010-01-01

437

Truss Climbing Robot for Space Station: Design, Analysis, and Motion Control  

NASA Astrophysics Data System (ADS)

The application of space robots has become more popular in performing tasks such as Intra and Extra Vehicular Activities (EVA) in Low Earth Orbit. For EVA, space robots were always designed as a chain-like manipulator with a joint configuration similar to on the earth robotic arm. Based on their joint configuration, they can be classified into two main categories. The first one is the six degrees of freedom (DOF) robotic arm including Shuttle Remote Manipulator System (SRMS), Engineering Test Satellite No. 7 (ETS-VII), the Main Arm (MA) and the Small Fine Arm (SFA) of Module Remote Manipulator System (JEMRMS). The other group is the seven-DOF space robotic arm which includes European Robotic Arm (ERA) and Space Station Remote Manipulator System (SSRMS), or Canadarm2. They not only perform manipulation tasks, but also be able to navigate on the exterior of the International Space Station (ISS). In a free floating environment, motions of a space robotic arm cause the attitude change of a space station because of their dynamic coupling effect. Hence, the stabilization of the space station attitude is important to maintain the electrical energy generated by the solar panels and the signal strength for communication. Most of research in this area focuses on the motion control of a space manipulator through the study of Generalized Jacobian Matrix. Little research has been conducted specifically on the design of locomotion mechanism of a space manipulator. This dissertation proposes a novel methodology for the locomotion on a space station which aims to lower the disturbance on a space station. Without modifying the joint configuration of conventional space manipulators, the use of a new gripping mechanism is proposed which combines the advantages of active wheels and conventional grippers. To realize the proposed gripping mechanism, this dissertation also presents the design of a novel frame climbing robot (Frambot) which is equipped with the new gripping mechanism, named movable gripper (MovGrip). It is capable of climbing non-enclosable rectangular trusses and the gripping force is generated by the compression of springs. Therefore, the energy consumption in static gripping is zero which allows itself to stay on a truss for a long time. To enhance the climbing stability, a simple and sensor-free auto-tilting correction mechanism is designed. Based on the robot prototype, novel climbing gaits are designed and realized and this verifies the feasibility of using wheels motion in climbing trusses. With the use of the proposed gripping mechanism, new gaits are designed for space manipulators and the corresponding disturbance on a space station is analyzed. Since conventional modeling of a space station system focuses on manipulation tasks, this dissertation extends the model to formulate the dynamic coupling effect during wheels navigation. To verify the formulations, an experimental platform is designed and developed. Based on the system model, the proposed gaits are simulated and the results are compared with conventional gaits. From the simulation results, it can be concluded that the proposed gaits are better than conventional gaits in terms of minimum dynamic disturbance and energy demand on a space station. In a free floating environment, the longer a gait is performed, the greater the disturbance is generated on a space station. Also, the energy source of a space station is limited and the minimization of the energy consumption of a robot is important. Therefore, this dissertation also proposes a path planning algorithm which aims to minimize the total traveling distance and energy demand when a space manipulator is commanded to reach a target position for certain missions. For the proposed algorithm, both closed and open paths are considered and the optimizations are based on the conventional genetic algorithm. To enhance the convergent rate and final solutions, several novel concepts are introduced. Different simulation are performed and the results are presented to evaluate the performance of the proposed path planning

Chung, Wing Kwong

438

Dream Anatomy Learning Station  

NSDL National Science Digital Library

This Web site contains the educational materials for Dream Anatomy, a new exhibit at the National Library of Medicine. Viewable online, the exhibit offers a somewhat macabre but undeniably fascinating survey of changes in anatomical representation over the last five centuries. Recently added to the main Dream Anatomy Web site, Learning Station provides lesson plans and activities intended for 6-12 graders. The material can be used exhibit or its online version. The lesson plans titled Beginnings of Anatomical Illustrations (grades 6-12) and Anatomical Metaphors (grades 7-8) have especially strong life sciences applications. Other online activities offer "fun ways for high school and older students to explore the content of Dream Anatomy." Altogether, Dream Anatomy Learning Station offers students a unique look at the intersection of art, science, and the imagination.

2008-09-08

439

Space Station Technology, 1983  

NASA Technical Reports Server (NTRS)

This publication is a compilation of the panel summaries presented in the following areas: systems/operations technology; crew and life support; EVA; crew and life support: ECLSS; attitude, control, and stabilization; human capabilities; auxillary propulsion; fluid management; communications; structures and mechanisms; data management; power; and thermal control. The objective of the workshop was to aid the Space Station Technology Steering Committee in defining and implementing a technology development program to support the establishment of a permanent human presence in space. This compilation will provide the participants and their organizations with the information presented at this workshop in a referenceable format. This information will establish a stepping stone for users of space station technology to develop new technology and plan future tasks.

Wright, R. L. (editor); Mays, C. R. (editor)

1984-01-01

440

Station Tour: Cupola and Leonardo  

NASA Video Gallery

Expedition 33 Commander Suni Williams continues the tour of the International Space Station with a look at the station's observation deck, the cupola, as well as the Advanced Resistive Exercise Dev...

441

Stations of Light  

NSDL National Science Digital Library

Student groups rotate through four stations to examine light energy behavior: refraction, magnification, prisms and polarization. They see how a beam of light is refracted (bent) through various transparent mediums. While learning how a magnifying glass works, students see how the orientation of an image changes with the distance of the lens from its focal point. They also discover how a prism works by refracting light and making rainbows. And, students investigate the polar nature of light using sunglasses and polarized light film.

Integrated Teaching And Learning Program

442

Bamfield Marine Station  

NSDL National Science Digital Library

The station provides year-round research facilities and technical assistance to scientists from the five western Canadian universities as well as visiting scientists, offers courses for undergraduate and graduate students in the marine sciences, and runs a public education program for schools and interested groups of all ages. Information includes all the latest research news and events, plus field trip and community projects information. Explore OceanLink and Ocean News for an abundance of education resources.

443

International Space Station exhibit  

NASA Technical Reports Server (NTRS)

The International Space Station (ISS) exhibit in StenniSphere at John C. Stennis Space Center in Hancock County, Miss., gives visitors an up-close look at the largest international peacetime project in history. Step inside a module of the ISS and glimpse how astronauts will live and work in space. Currently, 16 countries contribute resources and hardware to the ISS. When complete, the orbiting research facility will be larger than a football field.

2000-01-01

444

Station controls upgrade  

SciTech Connect

Liquid pipelines can save thousands of dollars a year by using programmable process controllers for pump station control. Mid-America Pipeline Co. calculates it has a payout period of less than a year on each of its Texas Instruments PM550C programmable process controllers. The PM550 PPC, which can handle several turbines and pumps simultaneously, costs less than half the price of a conventionally dedicated controller wired to a single mainline unit. At the same time, the PPC offers increased savings through less hardware and extended equipment life. The PPCs provide integrated system control and real time documentation, factors that have helped Mid-America cut maintenance calls in half and eliminate costly downtime at its Mocane station in Oklahoma. Financial savings are also realized from increased automation, and the company expects greater system efficiencies with the expandability of the PM550 PPC. Each of the three PPC control systems operates prime movers and pumps at Mid-America pump stations in Oklahoma, Texas, and Iowa.

Meyer, D.; Lewis, J.

1986-02-01

445

Probe Station Antenna Range  

NASA Technical Reports Server (NTRS)

This summer I was given the task of programming a Probe Station to collect near field antenna patterns and convert them to far field patterns. The purpose of this project is to provide NASA with another means of antenna characterizing. Currently, NASA Glenn can measure near field and far field patterns of many different types of antennas. The antennas targeted for this lab are small patch antennas at high frequencies that require probe biasing. The Probe Station contains two probes for RF signals and another two for DC Biasing. The way this lab works is as follows: A patch antenna is placed on the probe station and biased properly for testing. This antenna is known as the Antenna Under Test (AUT). The AUT is supplied with an RF signal from a probe that is connected to a network analyzer. Above the AUT hangs a probe for measuring the electric field emitted by the AUT. The probe is controlled by four axis. The axis of movements for this probe are back and forth, left and right, up and down, and rotation. The network analyzer and axis controllers are tied into a computer for reading commands and recording data. The probe scans a rectangular pattern above the AUT to measure the electric field emitted by the AUT. This data is then recorded and analyzed back at the computer.

Zaman, Afroz

2004-01-01

446

Space station commonality analysis  

NASA Technical Reports Server (NTRS)

This study was conducted on the basis of a modification to Contract NAS8-36413, Space Station Commonality Analysis, which was initiated in December, 1987 and completed in July, 1988. The objective was to investigate the commonality aspects of subsystems and mission support hardware while technology experiments are accommodated on board the Space Station in the mid-to-late 1990s. Two types of mission are considered: (1) Advanced solar arrays and their storage; and (2) Satellite servicing. The point of departure for definition of the technology development missions was a set of missions described in the Space Station Mission Requirements Data Base. (MRDB): TDMX 2151 Solar Array/Energy Storage Technology; TDMX 2561 Satellite Servicing and Refurbishment; TDMX 2562 Satellite Maintenance and Repair; TDMX 2563 Materials Resupply (to a free-flyer materials processing platform); TDMX 2564 Coatings Maintenance Technology; and TDMX 2565 Thermal Interface Technology. Issues to be addressed according to the Statement of Work included modularity of programs, data base analysis interactions, user interfaces, and commonality. The study was to consider State-of-the-art advances through the 1990s and to select an appropriate scale for the technology experiments, considering hardware commonality, user interfaces, and mission support requirements. The study was to develop evolutionary plans for the technology advancement missions.

1988-01-01

447

Space station advanced automation  

NASA Technical Reports Server (NTRS)

In the development of a safe, productive and maintainable space station, Automation and Robotics (A and R) has been identified as an enabling technology which will allow efficient operation at a reasonable cost. The Space Station Freedom's (SSF) systems are very complex, and interdependent. The usage of Advanced Automation (AA) will help restructure, and integrate system status so that station and ground personnel can operate more efficiently. To use AA technology for the augmentation of system management functions requires a development model which consists of well defined phases of: evaluation, development, integration, and maintenance. The evaluation phase will consider system management functions against traditional solutions, implementation techniques and requirements; the end result of this phase should be a well developed concept along with a feasibility analysis. In the development phase the AA system will be developed in accordance with a traditional Life Cycle Model (LCM) modified for Knowledge Based System (KBS) applications. A way by which both knowledge bases and reasoning techniques can be reused to control costs is explained. During the integration phase the KBS software must be integrated with conventional software, and verified and validated. The Verification and Validation (V and V) techniques applicable to these KBS are based on the ideas of consistency, minimal competency, and graph theory. The maintenance phase will be aided by having well designed and documented KBS software.

Woods, Donald

1990-01-01

448

Medicina Station Report  

NASA Astrophysics Data System (ADS)

The Medicina 32-m dish is an alt-az antenna run by the Istituto di Radioastronomia di Bologna del Consiglio Nazionale delle Ricerche. The radiotelescope is located about 30 km east of Bologna, Italy. It is part of the European VLBI Network. Details on the telescope characteristics and equipments can be found at the EVN Home Page (http://www.nfra.nl/evn/). In the last couple of years, the main goal at the Medicina Station was to get the telescope agile in changing the observing frequency. Achieving this goal will greatly increase the observational efficiency of the telescope. Moreover it will make the operation of changing the receivers more safe and it makes this task independent of weather conditions. The first part of the project has been completed and the new subreflector is fully in operation. The increased flexibility in changing frequency, together with the facility of recording both thick and thin tapes implemented at all the European VLBI Network (EVN) stations has immediately produced an increase in the number of geodetic VLBI observations to which the Medicina Station will take part in 1999.

Orfei, Allesandro

1999-08-01

449

Research on optimizing operation of the single reservoir of hybrid pumped storage power station  

Microsoft Academic Search

Hybrid pumped storage power station refers to the general hydropower station combined with reversible pumped storage units, which can accomplish such functions as energy storage, power generation, peak clipping and valley filling, and etc. The energy reserve will become a significant aspect on the process of constructing the strong smart grid, and pumped storage power station, serves as a kind

Wenwu Li; Jin Huang; Guang Li; Zhufeng Wang

2011-01-01

450

Space Station commercial user development  

NASA Technical Reports Server (NTRS)

The commercial utilization of the space station is investigated. The interest of nonaerospace firms in the use of the space station is determined. The user requirements are compared to the space station's capabilities and a feasibility analysis of a commercial firm acting as an intermediary between NASA and the private sector to reduce costs is presented.

1984-01-01

451

Clinton selects Space Station design  

Microsoft Academic Search

When it came to selecting a new space station design, President Clinton's decision was truly multiple choice: he has chosen to combine two of the three design options presented to him by NASA officials and forge a new space station that is smaller and simpler than the much-criticized Space Station Freedom.Announcing his compromise decision on June 17, Clinton opted to

John Holmes

1993-01-01

452

Space stations - A historical perspective  

NASA Technical Reports Server (NTRS)

This paper discusses the historical evolution of the space station concept, with particular attention to NASA plans in the 1960-1980 period. Emphasis is given to the changing justification presented for station development during that period and to the political context within which station proposals were evaluated.

Logsdon, J. M.

1983-01-01

453

Weld region corrosion during chemical cleaning of PWR (pressurized-water reactor) steam generators: Volume 2, Tests and analyses: Final report  

Microsoft Academic Search

The potential for preferential corrosion of steam generator weld regions during chemical cleaning using the generic SGOG solvents was investigated. The investigations included development and use of a corrosion assessment test facility which measured corrosion currents in a realistic model of the steam generator geometry in the vicinity of a specific weld during a simulated chemical dissolution of sludge consisting

J. L. Barna; S. A. Bozeka; J. M. Jevec; B. P. Miglin; M. E. Scott; C. R. Turner; T. A. Beineke; M. L. Fortier; J. P. Machnicki; E. O. Strohm

1987-01-01

454

Telemetry formats for the Space Station RF links  

NASA Technical Reports Server (NTRS)

This paper discusses the formats that have been proposed for the manned Space Station space/ground RF link. In addition to discussing the specific RF formats, the paper seeks to discuss the requirements that have caused the proposed format to exist in its current form. The paper begins by briefly discussing the historical basis for telemetry formats within NASA, and then discusses the unique requirements that the Space Station imposes, compared to traditional space probes. The paper next treats the overall requirements that must be satisfied by the Space Station communications system. Finally the paper discusses the details of the RF format and its proposed operational usage.

Marker, Walter

1987-01-01

455

Radiological assessment for Space Station Freedom  

NASA Technical Reports Server (NTRS)

Circumstances have made it necessary to reassess the risks to Space Station Freedom crewmembers that arise from exposure to the space radiation environment. An option is being considered to place it in an orbit similar to that of the Russian Mir space station. This means it would be in a 51.6 deg inclination orbit instead of the previously planned 28.5 deg inclination orbit. A broad range of altitudes is still being considered, although the baseline is a 407 km orbit. In addition, recent data from the Japanese A-bomb survivors has made it necessary for NASA to have the exposure limits reviewed. Preliminary findings of the National Council on Radiation Protection and Measurements indicate that the limits must be significantly reduced. Finally, the Space Station will be a laboratory where effects of long-term zero gravity on human physiology will be studied in detail. It is possible that a few crewmembers will be assigned to as many as three 1-year missions. Thus, their accumulated exposure will exceed 1,000 days. Results of this radiation risk assessment for Space Station Freedom crewmembers finds that females less than 35 years old will be confined to mission assignments where the altitude is less than about 400 km. Slight restrictions may also need to be made for male crewmembers less than 35 years old.

Badhwar, Gautam D.; Hardy, Alva C.; Robbins, Donald E.; Atwell, William

1993-01-01

456

Xcel Energy Comanche Station: Pueblo, Colorado (Data)  

DOE Data Explorer

A partnership with industry and U.S. Department of Energy's National Renewable Energy Laboratory (NREL) to collect solar data to support future solar power generation in the United States. The measurement station monitors global horizontal, direct normal, and diffuse horizontal irradiance to define the amount of solar energy that hits this particular location. The solar measurement instrumentation is also accompanied by meteorological monitoring equipment to provide scientists with a complete picture of the solar power possibilities.

Stoffel, T.; Andreas, A.

457

Xcel Energy Comanche Station: Pueblo, Colorado (Data)  

SciTech Connect

A partnership with industry and U.S. Department of Energy's National Renewable Energy Laboratory (NREL) to collect solar data to support future solar power generation in the United States. The measurement station monitors global horizontal, direct normal, and diffuse horizontal irradiance to define the amount of solar energy that hits this particular location. The solar measurement instrumentation is also accompanied by meteorological monitoring equipment to provide scientists with a complete picture of the solar power possibilities.

Stoffel, T.; Andreas, A.

2007-06-20

458

Expedition 36 Final Exams and Training  

NASA Video Gallery

The Expedition 36 crew members conduct final training at the Gagarin Cosmonaut Training Center before their May 28 launch to the International Space Station. Flight Engineers Karen Nyberg, Fyodor Y...

459

Space station: Cost and benefits  

NASA Technical Reports Server (NTRS)

Costs for developing, producing, operating, and supporting the initial space station, a 4 to 8 man space station, and a 4 to 24 man space station are estimated and compared. These costs include contractor hardware; space station assembly and logistics flight costs; and payload support elements. Transportation system options examined include orbiter modules; standard and extended duration STS fights; reusable spacebased perigee kick motor OTV; and upper stages. Space station service charges assessed include crew hours; energy requirements; payload support module storage; pressurized port usage; and OTV service facility. Graphs show costs for science missions, space processing research, small communication satellites; large GEO transportation; OVT launch costs; DOD payload costs, and user costs.

1983-01-01

460

Space station induced electromagnetic effects  

NASA Technical Reports Server (NTRS)

Several mechanisms which can cause electric (E) and magnetic (B) field contaminations of the Space Station environment are identified. The level of E and B fields generated by some of them such as the motion of the vehicle across the ambient magnetic field B(0) and the 20-kHz leakage currents and charges can be controlled by proper design considerations. On the other hand, there are some mechanisms which are inherent to the interaction of large vehicles with the plasma and probably their contributions to E and B fields cannot be controlled; these include plasma waves in the wake and ram directions and the effects of the volume current generated by the ionization of neutrals. The interaction of high-voltage solar arrays with plasma is yet another rich source of E and B fields and it is probably uncontrollable. Wherever possible, quantitative estimates of E and B are given. A set of recommendations is included for further study in areas where indepth knowledge is seriously lacking.

Singh, N.

1988-01-01

461

RF Environment Test on a Proposed Site for the Sensor Station of the Next Generation Satellite Navigation System, GALILEO: II. The Result of the Test on the Candidate Site in the Year of 2007 by KASI and ESA  

NASA Astrophysics Data System (ADS)

A RF environmental field test for the proposed Galileo Sensor Station site was done by Alcatel Alenia technical team contracted by European Space Agency (ESA) and the Space Geodesy division of Korea Astronomy and Space Science Institute at the Korean VLBI Network (KVN) site in Tamla University Campus, Jeju from June 21, 2007 to June 24, 2007. Full band and in-band 24 hour observation for radio frequency interference, precise positioning, and multipath on three proposed antenna locations for Galileo signal were executed. The main purpose of this survey is to verify the results of previous test on 2006 by KASI. The preliminary analysis of the results and a full investigation also had been done by ESA under the permission of KASI until the end of July, 2007.

Jo, Jung Hyun; Comte, Michel; Gonzalez, Moises; Park, Jong-Uk; Lee, Chang-Hoon; Park, Phil-Ho; Hwang, Jungwook; Choe, Nammi

2008-03-01

462

Unpressurized Logistics Carriers for the International Space Station: Lessons Learned  

NASA Technical Reports Server (NTRS)

The International Space Station has been in development since 1984, and has recently begun on orbit assembly. Most of the hardware for the Space Station has been manufactured and the rest is well along in design. The major sets of hardware that are still to be developed for Space Station are the pallets and interfacing hardware for resupply of unpressurized spares and scientific payloads. Over the last ten years, there have been numerous starts, stops, difficulties and challenges encountered in this effort. The Space Station program is now entering the beginning of orbital operations. The Program is only now addressing plans to design and build the carriers that will be needed to carry the unpressurized cargo for the Space Station lifetime. Unpressurized carrier development has been stalled due to a broad range of problems that occurred over the years. These problems were not in any single area, but encompassed budgetary, programmatic, and technical difficulties. Some lessons of hindsight can be applied to developing carriers for the Space Station. Space Station teams are now attempting to incorporate the knowledge gained into the current development efforts for external carriers. In some cases, the impacts of these lessons are unrecoverable for Space Station, but can and should be applied to future programs. This paper examines the progress and problems to date with unpressurized carrier development identifies the lessons to be learned, and charts the course for finally accomplishing the delivery of these critical hardware sets.

Robbins, William W., Jr.

1999-01-01

463

Multimodality image display station  

NASA Astrophysics Data System (ADS)

The Multi-modality Image Display Station (MIDS) is designed for the use of physicians outside of the radiology department. Connected to a local area network or a host computer, it provides speedy access to digitized radiology images and written diagnostics needed by attending and consulting physicians near the patient bedside. Emphasis has been placed on low cost, high performance and ease of use. The work is being done as a joint study with the University of Texas Southwestern Medical Center at Dallas, and as part of a joint development effort with the Mayo Clinic. MIDS is a prototype, and should not be assumed to be an IBM product.

Myers, H. Joseph

1990-07-01

464

International Space Station  

NASA Technical Reports Server (NTRS)

This slide presentation reviews the research on the International Space Station (ISS), including the sponsorship of payloads by country and within NASA. Included is a description of the space available for research, the Laboratory "Rack" facilities, the external research facilities and those available from the Japanese Experiment Module (i.e., Kibo), and highlights the investigations that JAXA has maintained. There is also a review of the launch vehicles and spacecraft that are available for payload transportation to the ISS, including cargo capabilities of the spacecraft.

Wahlberg, Jennifer; Gordon, Randy

2010-01-01

465

Stationed in the Stars  

NSDL National Science Digital Library

This website is part of NOVA Online, which is produced for the Public Broadcasting System (PBS) by the Science Unit at WGBH in Boston. This site accompanies the television program, and discusses the International Space Station (ISS): what it is, how the idea was formed, and what it will do. An interactive screen demonstrates the parts of the ISS with their function and where the part was made. There are videos and biographies of astronauts who will be serving on the ISS, activities about gravity and orbits, and links to additional resources. The accompanying video is available through mail order.

466

International Space Station Acoustics  

NASA Technical Reports Server (NTRS)

The International Space Station (ISS) presents a significant acoustics challenge considering all of the Modules and equipment that make it an on-orbit laboratory workshop and home with long-term crew occupation. This challenge is further complicated by the fact there are numerous and a wide variety suppliers of Station hardware, including International Partners. This paper addresses how ISS acoustics are managed to ensure a safe and habitable environment by establishing requirements, providing oversight and design support, sharing lessons learned and information, testing for hardware compliance, predicting future acoustic levels, and performing on-or