These are representative sample records from Science.gov related to your search topic.
For comprehensive and current results, perform a real-time search at Science.gov.
1

Goodyear Lake Hydroelectric Generating Station redevelopment final construction and cost report. DOE small-scale hydroelectric demonstration program  

SciTech Connect

This project is one of the US Department of Energy's original seven low-head hydroelectric demonstration projects. The demonstration project was initiated by the release of a Program Opportunity Notice (PON) ET-78-N-07-1711 dated November 1, 1978. The purpose for the demonstration is to show the feasibility of small hydroelectric power development projects at a number of existing dam sites across the country. The Goodyear Lake Power Station provided an excellent example of the redevelopment of a discontinued low-head hydroelectric facility. The dam and power station were previously owned by the New York State Electric and Gas Corporation. Prior to F.W.E. Stapenhorst's involvement, it was the Utility's intention to breach the dam and dewater the lake. In order to rehabilitate the power station, title was transferred to F.W.E. Stapenhorst Inc., upon finalization of a Power Agreement (whereby F.W.E. Stapenhorst Inc. would sell the power generated to New York State Electric and Gas Corporation) and issuance of the FERC license. The station, as renovated, is fully automatic and utilizes two Ossberger Cross-Flow type turbines - turbines which, due to their flat efficiency curve, are well suited for small rivers and streams where the flow varies over a wide range. Both technical and financial feasibility of the project were carefully analyzed prior to the commencement of the project. The US Department of Energy awarded a cooperative agreement whereby DOE would share $245,000 of the project costs. The Goodyear Lake Station was the first demonstration project under the auspices of the Department of Energy to achieve power-on-line and to be officially dedicated.

Not Available

1982-01-01

2

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

3

Integrated mild gasification processing at the Homer City Electric Power Generating Station site. Final report, July 1989--June 1993  

SciTech Connect

A new process for the production of commercial grade coke, char, and carbon products has been evaluated by Penelec/NYSEG. The process, developed by Coal Technology Corporation, CTC, utilizes a unique screw reactor to produce a devolatilized char from a wide variety of coals for the production of commercial grade coke for use in blast furnaces, foundries, and other processes requiring high quality coke. This process is called the CTC Mild Gasification Process (MGP). The process economics are significantly enhanced by integrating the new technology into an existing power generating complex. Cost savings are realized by the coke producer, the coke user, and the electric utility company. Site specific economic studies involving the Homer City Generating Station site in Western Pennsylvania, confirmed that an integrated MGP at the Homer City site, using coal fines produced at the Homer City Coal Preparation Plant, would reduce capital and operating costs significantly and would enable the HC Owners to eliminate thermal dryers, obtain low cost fuel in the form of combustible gases and liquids, and obtain lower cost replacement coal on the spot market. A previous report, identified as the Interim Report on the Project, details the technical and economic studies.

Battista, J.J.; Zawadzki, E.A. [Pennsylvania Electric Co., Johnstown, PA (United States)

1993-07-01

4

Feasibility study on Comodoro Rivadavia gas-fired electric generating station and Windpower Station project. Final report, Volume 3. Export trade information  

SciTech Connect

This study, conducted by Advanced International Group, was funded by the U.S. Trade and Development Agency on behalf of Grupo Ideal, S.A. of Comodoro Rivadavia, Argentina. The purpose of the report is to assess the feasibility of generating electricity for the city by utilizing it`s two most abundant resources: wind and natural gas. This is the third of five volumes. It contains the Markets Assessment and is divided into the following sections. (1) An Overview of Argentina; (2) The Foreign Investment Climate; (3) The Oil and Gas Market in Argentina; (4) The Electricity Market; (5) The New Electric Power Market.

NONE

1996-05-01

5

73 FR 13032 - PSEG Nuclear, LLC; Hope Creek Generating Station Final Environmental Assessment and Finding of No...  

Federal Register 2010, 2011, 2012, 2013, 2014

...proposed EPU would not increase the size of the HCGS workforce...percent. In addition, the poverty rates for individuals living...the Gloucester County poverty rate was 6.2 percent...to be distributed would increase as power generation...

2008-03-11

6

The Remote Security Station (RSS) final report  

SciTech Connect

The Remote Security Station (RSS) was developed by Sandia National Laboratories for the Defense Nuclear Agency to investigate issues pertaining to robotics and sensor fusion in physical security systems. This final report documents the status of the RSS program at its completion in April 1992. The RSS system consists of the Man Portable Security Station (MaPSS) and the Telemanaged Mobile Security Station (TMSS), which are integrated by the Operator`s Control Unit (OCU) into a flexible exterior perimeter security system. The RSS system uses optical, infrared, microwave, and acoustic intrusion detection sensors in conjunction with sensor fusion techniques to increase the probability of detection and to decrease the nuisance alarm rate of the system. Major improvements to the system developed during the final year are an autonomous patrol capability, which allows TMSS to execute security patrols with limited operator interaction, and a neural network approach to sensor fusion, which significantly improves the system`s ability to filter out nuisance alarms due to adverse weather conditions.

Pletta, J.B.; Amai, W.A.; Klarer, P.; Frank, D.; Carlson, J.; Byrne, R.

1992-10-01

7

The Remote Security Station (RSS) final report  

SciTech Connect

The Remote Security Station (RSS) was developed by Sandia National Laboratories for the Defense Nuclear Agency to investigate issues pertaining to robotics and sensor fusion in physical security systems. This final report documents the status of the RSS program at its completion in April 1992. The RSS system consists of the Man Portable Security Station (MaPSS) and the Telemanaged Mobile Security Station (TMSS), which are integrated by the Operator's Control Unit (OCU) into a flexible exterior perimeter security system. The RSS system uses optical, infrared, microwave, and acoustic intrusion detection sensors in conjunction with sensor fusion techniques to increase the probability of detection and to decrease the nuisance alarm rate of the system. Major improvements to the system developed during the final year are an autonomous patrol capability, which allows TMSS to execute security patrols with limited operator interaction, and a neural network approach to sensor fusion, which significantly improves the system's ability to filter out nuisance alarms due to adverse weather conditions.

Pletta, J.B.; Amai, W.A.; Klarer, P.; Frank, D.; Carlson, J.; Byrne, R.

1992-10-01

8

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

9

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

10

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

11

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

12

Southwest Region Experiment Station - Final Technical Report  

SciTech Connect

Southwest Technology Development Institute (SWTDI), an independent, university-based research institute, has been the operator of the Southwest Region Photovoltaic Experiment Station (SWRES) for almost 30 years. The overarching mission of SWTDI is to position PV systems and solar technologies to become cost-effective, major sources of energy for the United States. Embedded in SWTDI's general mission has been the more-focused mission of the SWRES: to provide value added technical support to the DOE Solar Energy Technologies Program (SETP) to effectively and efficiently meet the R&D needs and targets specified in the SETP Multi-Year Technical Plan. : The DOE/SETP goals of growing U.S. PV manufacturing into giga-watt capacities and seeing tera-watt-hours of solar energy production in the U.S. require an infrastructure that is under development. The staff of the SWRES has supported DOE/SETP through a coherent, integrated program to address infrastructural needs inhibiting wide-scale PV deployment in three major technical categories: specialized engineering services, workforce development, and deployment facilitation. The SWRES contract underwent three major revisions during its five year period-of- performance, but all tasks and deliverables fell within the following task areas: Task 1: PV Systems Assistance Center 1. Develop a Comprehensive multi-year plan 2. Provide technical workforce development materials and workshops for PV stakeholder groups including university, professional installers, inspectors, state energy offices, Federal agencies 3. Serve on the NABCEP exam committee 4. Provide on-demand technical PV system design reviews for U.S. PV stakeholders 5. Provide PV system field testing and instrumentation, technical outreach (including extensive support for the DOE Market Transformation program) Task 2: Design-for-Manufacture PV Systems 1. Develop and install 18 kW parking carport (cost share) and PV-thermal carport (Albuquerque) deriving and publishing lessons learned Task 3: PV Codes and Standards 1. Serve as the national lead for development and preparation of all proposals (related to PV) to the National Electrical Code 2. Participate in the Standards Technical Panels for modules (UL1703) and inverters (UL1741) Task 4: Assess Inverter Long Term Reliability 1. Install and monitor identical inverters at SWRES and SERES 2. Operate and monitor all inverters for 5 years, characterizing all failures and performance trends Task 5: Test and Evaluation Support for Solar America Initiative 1. Provide test and evaluation services to the National Laboratories for stage gate and progress measurements of SAI TPP winners

Rosenthal, A

2011-08-19

13

Environmental statement, Lake City Station, unit one. Final report  

Microsoft Academic Search

A detailed analysis of the environmental impacts related to the construction and operation of an oil-fueled electric generating station. The proposed plant will occupy a 639 acre site on the south shore of Lake Erie in Girard Township, Erie County, Pennsylvania. Electrical power generated by this facility will vary between 245 megawatts and 295 megawatts. The water intake and effluent

Leuchner

1973-01-01

14

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

15

Space station final study report. Volume 1: Executive summary  

NASA Technical Reports Server (NTRS)

Volume 1 of the Final Study Report provides an Executive Summary of the Phase B study effort conducted under contract NAS8-36526. Space station Phase B implementation resulted in the timely establishment of preliminary design tasks, including trades and analyses. A comprehensive summary of project activities in conducting this study effort is included.

1987-01-01

16

VentureStar Space Station Docking - Computer generated graphic  

NASA Technical Reports Server (NTRS)

This 42-second clip has the cargo bay doors of the hypothetical future reusable launch vehicle VentureStar opening to reveal the bay door radiators and docking module then slowly approaching the International Space Station and finally docking at Pressurized Mating Adapter #2 attached to node two of the Station.

1996-01-01

17

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

Federal Register 2010, 2011, 2012, 2013, 2014

...Significant Impact The U.S. Nuclear Regulatory Commission (NRC...and DPR-75, issued to PSEG Nuclear LLC (PSEG, the licensee...Station (HCGS) and the Salem Nuclear Generating Station, Unit Nos...No changes to the National Pollution Discharge Elimination...

2010-02-08

18

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

E-print Network

reform allow Europe to finally rival the US market? p.395 T he costs of nuclear power, from the cashD.McNew/GettyIMaGes San Onofre Nuclear Generating Station, California. CORRESPONDENCE Checklist survey of the sky p.398 BOOKS First biography of Sydney Brenner does dutiful job p.396 POlICY Can patent

19

Power plant V - Thek generating station  

NASA Astrophysics Data System (ADS)

The design and operating features of a 10 MWe parabolic dish concentrator steam-cycle generating plant are described. The dishes which have 75 sq m area with a concentration factor of 265, were proved in the Themis project. The total field for the 10 MWe would cover 63,100 sq m and require 842 units. Using a water-steam cycle at 50 bars, temperature would never surpass 264 C, with an after-generator condition of 33 bars at 204 C. Preheating the water is intended with a fused salt reservoir containing 570 tons in 350 cu m container, around which condensed water would flow. Maintaining the primary loop at mildly elevated temperatures would permit uninterrupted operation during cloudy periods. A total shutdown would occur if cloudy conditions last more than one hour, and start-up would involve reheating the primary loop, recharging the storage, and then respinning the turbine.

Pons, M.

20

88. Photocopied August 1978. STATION GENERATORS LOOKING EAST FROM THE ...  

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

88. Photocopied August 1978. STATION GENERATORS LOOKING EAST FROM THE CENTRAL GALLERY, AUGUST 11, 1914. BY THIS DATE MICHIGAN NORTHERN HAD COMPLETED THE INSTALLATION OF GENERATORS IN THE EASTERN HALF OF THE POWER HOUSE AND HAD BEGUN WORK ON THE WEST. THE MOTOR-GENERATORS PURSHASED BY THE M.L.S.P.C. IN 1902 CAN BE SEEN ON THE LEFT BY THE LINE OF COLUMNS. (910) - Michigan Lake Superior Power Company, Portage Street, Sault Ste. Marie, Chippewa County, MI

21

Analysis of the Behavior of Electric Vehicle Charging Stations with Renewable Generations  

E-print Network

Analysis of the Behavior of Electric Vehicle Charging Stations with Renewable Generations Woongsup between electric vehicle charging stations (EVCSs) with renewable electricity generation facilities (REGFs electricity generation [1]. Therefore, renewable power generation will play a significant role in smart grid

Wong, Vincent

22

Review of the Limerick Generating Station Probabilistic Risk Assessment  

Microsoft Academic Search

A review of the Probabilistic Risk Assessment of the Limerick Generating Station was conducted with the broad objective of evaluating its risks in relation to those identified in the Reactor Safety Study (WASH-1400). The review included a technical assessment of the assumptions and methods used in the Limerick study. It also included a re-evaluation of the main results within the

I. A. Papazoglou; R. Karol; K. Shiu; S. Fiarman; L. Lederman; H. Ludewig; W. T. Pratt; R. A. Bari

1983-01-01

23

Aggregated Dispatch of Distributed Generation Units: Final Report  

SciTech Connect

This final report describes a project to demonstrate the technical and economic feasibility of aggregating distributed generating resources in New York State. This project demonstrates a system that allows distributed generation (DG) to participate in competitive markets in much the same way as large central-station power plants. This approach involves aggregating the distributed demand-side resources into a single transaction entity consistent with the requirements of the New York Independent System Operator (NYISO). This single entity then buys or sells capacity and energy (i.e., curtailment) in NYISO markets.

Not Available

2004-09-01

24

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

25

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

26

Transshipment of spent fuel at San Onofre nuclear generating station  

Microsoft Academic Search

San Onofre nuclear generating station is a three-unit facility. Unit 1 is a 456-MW(electric) Westinghouse pressurized water reactor that went into commercial operation in 1968. The unit 1 spent-fuel pool is of limited capacity, holding a maximum of 216 assemblies. The unit 1 core contains 157 assemblies, of which 52 are discharged approximately every 2 yr. Units 2 and 3

T. W. Raidy; R. G. Wilson

1989-01-01

27

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

28

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

Code of Federal Regulations, 2011 CFR

...Generating Station, Susquehanna River, Dauphin County, Pennsylvania. 165.554 Section 165.554 Navigation and Navigable...Generating Station, Susquehanna River, Dauphin County, Pennsylvania. (a) Location. The following area is a security zone: the waters of...

2011-07-01

29

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

Code of Federal Regulations, 2013 CFR

...Generating Station, Susquehanna River, Dauphin County, Pennsylvania. 165.554 Section 165.554 Navigation and Navigable...Generating Station, Susquehanna River, Dauphin County, Pennsylvania. (a) Location. The following area is a security zone: the waters of...

2013-07-01

30

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

Code of Federal Regulations, 2014 CFR

...Generating Station, Susquehanna River, Dauphin County, Pennsylvania. 165.554 Section 165.554 Navigation and Navigable...Generating Station, Susquehanna River, Dauphin County, Pennsylvania. (a) Location. The following area is a security zone: the waters of...

2014-07-01

31

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

Code of Federal Regulations, 2010 CFR

...Generating Station, Susquehanna River, Dauphin County, Pennsylvania. 165.554 Section 165.554 Navigation and Navigable...Generating Station, Susquehanna River, Dauphin County, Pennsylvania. (a) Location. The following area is a security zone: the waters of...

2010-07-01

32

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

Code of Federal Regulations, 2012 CFR

...Generating Station, Susquehanna River, Dauphin County, Pennsylvania. 165.554 Section 165.554 Navigation and Navigable...Generating Station, Susquehanna River, Dauphin County, Pennsylvania. (a) Location. The following area is a security zone: the waters of...

2012-07-01

33

75 FR 12580 - Southern California Edison Company, San Onofre Nuclear Generating Station, Units 2 and 3...  

Federal Register 2010, 2011, 2012, 2013, 2014

...Edison Company, San Onofre Nuclear Generating Station, Units...Significant Impact The U.S. Nuclear Regulatory Commission (NRC...operation of the San Onofre Nuclear Generating Station, Units...No changes to the National Pollution Discharge Elimination...

2010-03-16

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

Main Generator Seal Oil Supply Reliability Improvements at Southern California Edison's San Onofre Nuclear Generating Station  

Microsoft Academic Search

This paper presents the justification for the approach, details and results of the Main Generator Seal Oil System reliability enhancements on the San Onofre Nuclear Generating Station, SONGS. The SONGS, Unit 3 experienced substantial turbine damage in early 2001 after the turbine bearings lubrication oil supply failed. During a loss of off-site power incident, power was lost to the two

Fred Y. Simma; Russell J. Chetwynd; Stuart A. Rowe

2006-01-01

36

Thermoeconomic analysis of power plants: an application to a coal fired electrical generating station  

Microsoft Academic Search

Several thermodynamic relations between energy and exergy losses and capital costs for thermal systems and equipment are developed and applied to a modern coal fired electrical generating station. Some possible generalizations of the results are also discussed. The application considers the overall station and the following station devices: turbine generators, steam generators, preheating devices and condensers. The data suggest that

Marc A Rosen; Ibrahim Dincer

2003-01-01

37

Technical evaluation of the adequacy of station electric distribution system voltages for the San Onofre Nuclear Generating Station, Unit 1  

Microsoft Academic Search

This report documents the technical evaluation of the adequacy of the station electric distribution system voltages for the San Onofre Nuclear Generating Station, Unit. The evaluation is to determine if the onsite distribution system in conjunction with the offsite power sources has sufficient capacity to automatically start and operate all Class 1E loads within the equipment voltage ratings under certain

Selan

1982-01-01

38

Automated Generation of Antenna Tracking Plans for a Deep Space Communications Station  

E-print Network

Automated Generation of Antenna Tracking Plans for a Deep Space Communications Station Tara Estlin track plan generation for a NASA Deep Space Communications Station. The described system enables, Spain, and Goldstone, California. Each DSN complex operates four deep space stations ­­ one 70­ meter

Schaffer, Steven

39

Automated Generation of Antenna Tracking Plans for a Deep Space Communications Station  

E-print Network

Automated Generation of Antenna Tracking Plans for a Deep Space Communications Station Tara Estlin track plan generation for a NASA Deep Space Communications Station. The described system enables, Spain, and Goldstone, California. Each DSN complex operates four deep space stations -- one 70- meter

Schaffer, Steven

40

Review of the Limerick Generating Station Probabilistic Risk Assessment  

SciTech Connect

A review of the Probabilistic Risk Assessment of the Limerick Generating Station was conducted with the broad objective of evaluating its risks in relation to those identified in the Reactor Safety Study (WASH-1400). The review included a technical assessment of the assumptions and methods used in the Limerick study. It also included a re-evaluation of the main results within the scope and general methodological framework of the study. This included both qualitative and quantitative analyses of accident initiators, data bases, accident sequences which result in core damage, core melt phenomena, fission product behavior, and offsite consequences. Specific comparisons were made between the Limerick study, the Brookhaven review, and the WASH-1400 reactor for the core damage frequency and the average frequencies of acute and latent fatalities. The effect of uncertainties was considered throughout the review process and the uncertainty bands for the risk indices were quantified.

Papazoglou, I.A.; Karol, R.; Shiu, K.; Fiarman, S.; Lederman, L.; Ludewig, H.; Pratt, W.T.; Bari, R.A.

1983-02-01

41

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

42

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

43

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

44

76 FR 75876 - Record of Decision for the Modification of the Groton Generation Station Interconnection...  

Federal Register 2010, 2011, 2012, 2013, 2014

...Administration (Western) received a request from Basin Electric Power Cooperative (Basin Electric) to modify its Large Generator Interconnection Agreement (LGIA) with Basin Electric for the Groton Generation Station to eliminate current...

2011-12-05

45

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...

46

26. Photocopy of diagram (from Bernhardt Skrotzki's Electric GenerationSteam Stations, ...  

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

26. Photocopy of diagram (from Bernhardt Skrotzki's Electric Generation--Steam Stations, New York, New York, 1956, figure I-1) THE GENERAL WAY IN WHICH ELECTRICITY IS CREATED THROUGH THE STEAM GENERATION PROCESS - Portland General Electric Company, Station "L", 1841 Southeast Water Street, Portland, Multnomah County, OR

47

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

48

The third generation SLR station Potsdam no. 7836  

NASA Technical Reports Server (NTRS)

The new satellite laser ranging (SLR) station Potsdam has been installed during the winter of 1991/1992 in an existing dome near the old ruby laser at Helmert Tower. It has been built around a one-meter-Coude telescope and is equipped by a 50 ps Nd:YAG laser and a SPAD receiver. The first successful Lageos passes were obtained in May 1992 demonstrating 2-3 cm rms at the single photon level. The new station will be used for experimental work and selected campaigns as well.

Fischer, H.; Grunwaldt, Ludwig; Neubert, Reinhart

1993-01-01

49

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

Code of Federal Regulations, 2012 CFR

...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...

2012-07-01

50

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

Code of Federal Regulations, 2013 CFR

...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...

2013-07-01

51

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

Code of Federal Regulations, 2014 CFR

...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

52

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

EPA Science Inventory

This report addresses the potential for using "Limbo Lands" as sites for renewable energy generating stations. Limbo Lands are considered as underused, formerly contaminated sites, and include former Superfund sites, landfills, brownfields, abandoned mine lands, former industrial...

53

Optimal command generation for maneuvering the space station  

E-print Network

the world's space powers. It can be maneuvered and controlled in several ways. The software aboard the station includes the US Guidance, Navigation, and Control (GN&C) Attitude Control System. The hardware consists of four double gimbaled Control Moment..., the basic structure of the collocation algorithm was maintained. 16 There exists a vast literature on optimal control techniques. The characteristics of a problem aid in choosing a method to find the optimal solution. The next section discusses what...

Bryson, Amy Louise

2001-01-01

54

Space Station Redesign Team: Final report to the Advisory Committee on the Redesign of the Space Station  

NASA Technical Reports Server (NTRS)

This report is the result of the Space Station Redesign Team's activity. Its purpose is to present without bias, and in appropriate detail, the characteristics and cost of three design and management approaches for the Space Station Freedom. It was presented to the Advisory Committee on the Redesign of the Space Station on 7 Jun. 1993, in Washington, D.C.

1993-01-01

55

Inspiring the Next Generation: The International Space Station Education Accomplishments  

NASA Technical Reports Server (NTRS)

The International Space Station (ISS) has a unique ability to capture the imagination of both students and teachers worldwide. Since 2000, the presence of humans onboard ISS has provided a foundation for numerous educational activities aimed at capturing that interest and motivating study in the sciences, technology, engineering and mathematics (STEM). Over 43 million students around the world have participated in ISS-related educational activities. Projects such as YouTube Space Lab, Sally Ride Earth Knowledge-based Acquired by Middle Schools (EarthKAM), SPHERES (Synchronized Position Hold Engage and Reorient Experimental Satellites) Zero-Robotics, Tomatosphere, and MAI-75 events among others have allowed for global student, teacher and public access to space through student classroom investigations and real-time audio and video contacts with crewmembers. Educational activities are not limited to STEM but encompass all aspects of the human condition. This is well illustrated in the Uchu Renshi project, a chain poem initiated by an astronaut while in space and continued and completed by people on Earth. With ISS operations now extended to 2024, projects like these and their accompanying educational materials are available to more students around the world. From very early on in the program's history, students have been provided with a unique opportunity to get involved and participate in science and engineering projects. Many of these projects support inquiry-based learning that allows students to ask questions, develop hypothesis-derived experiments, obtain supporting evidence and identify solutions or explanations. This approach to learning is well-published as one of the most effective ways to inspire students to pursue careers in scientific and technology fields. Ever since the first space station element was launched, a wide range of student experiments and educational activities have been performed, both individually and collaboratively, by all the international partner agencies, National Aeronautics and Space Administration (NASA), Canadian Space Agency (CSA), European Space Agency, (ESA), Japan Aerospace Exploration Agency (JAXA) and Russian Federal Space Agency (Roscosmos), and a number of non-participating countries, some under commercial agreements. Many of these programs still continue, and others are being developed and added to the stations tasks on a regular basis. These diverse student experiments and programs fall into one of the following categories: student-developed experiments; students performing classroom versions of ISS experiments; students participating in ISS investigator experiments; education competitions; students participating in ISS Engineering Education; Education Demonstrations and Cultural Activities. This paper summarizes some of the main student experiments and educational activities that have been conducted on the space station.

Alleyne, Camille W.; Hasbrook, Pete; Knowles, Carolyn; Chicoine, Ruth Ann; Miyagawa, Yayoi; Koyama, Masato; Savage, Nigel; Zell, Martin; Biryukova, Nataliya; Pinchuk, Vladimir; Odelevsky, Vladimir; Firsyuk, Sergey; Alifanov, Oleg

2014-01-01

56

Main Generator Seal Oil Supply Reliability Improvements at Southern California Edison's San Onofre Nuclear Generating Station  

SciTech Connect

This paper presents the justification for the approach, details and results of the Main Generator Seal Oil System reliability enhancements on the San Onofre Nuclear Generating Station, SONGS. The SONGS, Unit 3 experienced substantial turbine damage in early 2001 after the turbine bearings lubrication oil supply failed. During a loss of off-site power incident, power was lost to the two AC powered turbine lubrication oil pumps due to a breaker failure in the switchgear and the DC powered emergency bearing lubricating oil pump failed to start due to a breaker trip. The SONGS turbine generators coasted down from full speed to a full stop without lubricating oil. This resulted in significant bearing, journal and steam path damage that required a four-month duration repair outage during a time period where electricity was in short supply in the State of California. The generator hydrogen sealing system remained operable during this event, however it was recognized during the event follow up investigation that this system had vulnerabilities to failure similar to the bearing lubrication system. In order to prevent a reoccurrence of this extremely costly event, SONGS has taken actions to modify both of these critical turbine generator systems by adding additional, continuously operating pumps with a new, independent power source and independently routed cables. The main challenge was to integrate the additional equipment into the existing lubrication and seal oil systems. The lubrication Oil System was the first system to be retro-fitted and these results already have been presented. Reference 2. This paper provides the result of the reliability enhancements for the Main Generator Seal Oil System, which concludes the turbine/generator critical oil systems reliability improvements, performed by SONGS. It is worth noting that the design team discovered and corrected a number of other significant operational issues, which had been present from the early days and also learned a great deal of detailed information about this vital system during the project. The SONGS approach and findings are discussed in this paper, as well as a summary of the work performed. This technical paper will be of interest to utilities with a need to improve turbine generator reliability issues. (authors)

Simma, Fred Y.; Chetwynd, Russell J. [Southern California Edison, P.O. Box 800, Rosemead, CA 91770 (United States); Rowe, Stuart A. [Alstom Power Service (United States)

2006-07-01

57

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

58

Design of distributed control system for Malakoff Generating Station  

Microsoft Academic Search

Microprocessor-based distributed control technology can provide increased reliability and flexibility, and together with an integrated operator interface promises better plant efficiency and availability. An overview of the procedure followed in engineering a distributed digital control system with an integrated operator interface for a large lignite-fired generating plant is presented. The system includes Boiler and Burner control, Interposing Logic System and

A. M. Romano; F. Chin; R. D. Simpson; J. A. Rovnak

1984-01-01

59

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

60

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

61

DESIGNING AND 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 July 1, 2000-March 31, 2004, Allegheny Energy Supply Co., LLC (Allegheny) conducted an extensive demonstration of woody biomass cofiring at its Willow Island and Albright Generating Stations. This demonstration, cofunded by USDOE and Allegheny, and supported by the Biomass Interest Group (BIG) of EPRI, evaluated the impacts of sawdust cofiring in both cyclone boilers and tangentially-fired pulverized coal boilers. The cofiring in the cyclone boiler--Willow Island Generating Station Unit No.2--evaluated the impacts of sawdust alone, and sawdust blended with tire-derived fuel. The biomass was blended with the coal on its way to the combustion system. The cofiring in the pulverized coal boiler--Albright Generating Station--evaluated the impact of cofiring on emissions of oxides of nitrogen (NO{sub x}) when the sawdust was injected separately into the furnace. The demonstration of woody biomass cofiring involved design, construction, and testing at each site. The results addressed impacts associated with operational issues--capacity, efficiency, and operability--as well as formation and control of airborne emissions such as NO{sub x}, sulfur dioxide (SO{sub 2}2), opacity, and mercury. The results of this extensive program are detailed in this report.

K. Payette; D. Tillman

2004-06-01

62

Technical-evaluation report on the adequacy of station electric-distribution-system voltages for the San Onofre Nuclear Generating Station, Unit 1. Document No. 50-206  

Microsoft Academic Search

This report documents the technical evaluation of the adequacy of the station electric distribution system voltages for the San Onofre Nuclear Generating Station, Unit 1. The evaluation is to determine if the onsite distribution system in conjunction with the offsite power sources has sufficient capacity to automatically start and operate all Class 1E loads within the equipment voltage ratings under

Selan

1982-01-01

63

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

64

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

Federal Register 2010, 2011, 2012, 2013, 2014

...Exelon Generation Company, LLC (the licensee, EGC) for operation of the Clinton Power Station, Unit 1 (CPS), located in DeWitt County, Illinois. The proposed partial site release would transfer 4-acres of property, owned by EGC, from CPS to...

2012-06-04

65

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 ...

66

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 Fellowship #12;2 Arizona water concern at issue: Water's connection to energy and climate Water, climate, and energy are closely linked in Arizona. When a person turns on the tap in Tucson, part of that water

Fay, Noah

67

Using MapReduce to Improve the Power Generation of the International Space Station  

NASA Astrophysics Data System (ADS)

The International Space Station (ISS) spends approximately 98% of its time in orbits that experience Earth eclipse. Since the station's solar arrays produce no power when in Earth's shadow, the total power generated decreases substantially, lowering the power budget available to experimental payloads. Therefore, increasing the power output during these eclipsed orbits would be of great benefit to the space station's scientific endeavors. The ISS's current solar array configuration tracks the Sun throughout each orbit, keeping each of its 16 solar panels perpendicular to the Sun at all times. While this is the optimal orientation for solar panels with unobstructed views of the Sun, the space station's solar arrays experience shadowing from the spacecraft's structure as well as from the other solar panels. Deviating from the Sun-tracking scheme at strategic points in certain orbits can provide an increase in power output. The goal of this research was to provide a programmatic solution that increases the power generation capabilities of the ISS in orbits experiencing Earth-eclipse without requiring any physical modifications to the space station's structure. To achieve this goal, a simulator was developed to model the ISS-Earth-Sun environment and calculate the power output of the station's solar arrays based on each panel's orientation and shadowing. Many combinations of array configurations were analyzed, taking into account the physical constraints of the gimbals responsible for rotating the solar panels. The power output of the ISS was improved for the subset of Earth-eclipsed orbits that experience a high degree of shadowing from the station's structure, resulting in an average energy increase of 1.08 kWh per orbit. The power gains were achieved by quickly rotating the solar arrays through the points in each orbit that experienced the highest degree of shadowing.

Marchetto, William R., II

68

Effects of a clean coal-fired power generating station on four common Wisconsin lichen species  

SciTech Connect

Algal plasmolysis percentages and other morphological characteristics of Parmelia bolliana Muell. Arg., P. caperata (L.) Ach., P. rudecta Ach., and Physcia millegrana Degel. were compared for specimens growing near to and far from a rural coal-fired generating station in south central Wisconsin. SO/sup 2/ levels were 389 ..mu..g/m/sup 3/, maximum 1 hr level, and 5-9 ..mu..g/m/sup 3/, annual averages. Parmelia bolliana and P. caperata showed evidence of morphological alterations near the station; P. rudecta and Physcia millegrana did not.

Will-Wolf, S.

1980-01-01

69

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

70

Space station needs, attributes and architectural options study. Final executive review  

NASA Technical Reports Server (NTRS)

Identification and validation of missions, the benefits of manned presence in space, attributes and architectures, space station requirements, orbit selection, space station architectural options, technology selection, and program planning are addressed.

1983-01-01

71

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...

72

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

Federal Register 2010, 2011, 2012, 2013, 2014

...NRC-2010-0042] Exelon Generation Company, LLC; PSEG Nuclear, LLC; Peach Bottom Atomic Power Station Units 2 and 3; Notice of Withdrawal...Facility Operating License Nos. DPR-44 and DPR-56 for the Peach Bottom Atomic Power Station (PBAPS), Units 2 and 3,...

2010-02-05

73

75 FR 13606 - Arizona Public Service Company, Palo Verde Nuclear Generating Station, Units 1, 2, and 3...  

Federal Register 2010, 2011, 2012, 2013, 2014

...Significant Impact The U.S. Nuclear Regulatory Commission (NRC...operation of the Palo Verde Nuclear Generating Station, Units...No changes to the National Pollution Discharge Elimination System...day of March 2010. For the Nuclear Regulatory Commission....

2010-03-22

74

Surface definition and grid generation about an Assured Crew Return Vehicle (ACRV) for Space Station Freedom  

NASA Technical Reports Server (NTRS)

The surface definition and grid generation about an Assured Crew Return Vehicle (ACRV) for the Space Station Freedom are described. The purpose of the surface definition and grid generation is to provide the necessary geometry information for CFD calculations about the vehicle. There are two salient features in this description. The first is that the numerical model representing the ACRV configuration is obtained from the measurement of an existing wind tunnel model. The method for smoothing the measured data and obtaining the numerical model is described. The second feature is the description of the algebraic grid generation method and software to compute volume grids about the ACRV. The methods and software allow rapid computation of volume grids for a wide range of flow conditions.

Smith, R. E.; Everton, E. L.; Weilmuenster, K. J.; Weise, M. R.; Farr, N.

1990-01-01

75

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

76

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

77

Solid polymer electrolyte water electrolysis system development. [to generate oxygen for manned space station applications  

NASA Technical Reports Server (NTRS)

Solid polymer electrolyte technology used in a water electrolysis system (WES) to generate oxygen and hydrogen for manned space station applications was investigated. A four-man rated, low pressure breadboard water electrolysis system with the necessary instrumentation and controls was fabricated and tested. A six man rated, high pressure, high temperature, advanced preprototype WES was developed. This configuration included the design and development of an advanced water electrolysis module, capable of operation at 400 psig and 200 F, and a dynamic phase separator/pump in place of a passive phase separator design. Evaluation of this system demonstrated the goal of safe, unattended automated operation at high pressure and high temperature with an accumulated gas generation time of over 1000 hours.

1975-01-01

78

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

79

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

80

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

81

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

82

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

Microsoft Academic Search

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

D. E. Palmrose; J. S. Herring

1993-01-01

83

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 Nations grid. TECs 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

84

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

85

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

86

Environmental radiological studies downstream from Rancho Seco Nuclear Power Generating Station  

SciTech Connect

This report summarizes the information compiled in 1984 while assessing the environmental impact of radionuclides in aquatic releases from the Rancho Seco Nuclear Power Generating Station. Gamma-emitting radionuclides discharged since 1981 are found in many of the dietary components derived from the creeks receiving the effluent wastewater. Some soils and crops are found to contain radionuclides that originate from the contaminated water that was transferred to land during the irrigation season. /sup 134/Cs and /sup 137/Cs are the primary gamma-emitting radionuclides detected in the edible flesh of fish from the creeks. Concentrations in the flesh of fish decreased exponentially with distance from the plant. No significant differences in the /sup 137/Cs activity were found between male and female fish of equal size, but concentrations may vary in fish of different size, with the season and diet. 21% of the total /sup 137/Cs and /sup 134/Cs discharged between 1981 and 1984 is associated with the creek sediments to a distance of 27 km from the plant. Fractions of the missing inventory have been transferred to land during the irrigation season or to downstream regions more distant than 27 km from the plant. The radiocesium content of the sediments in 1984 decreased significantly in a downstream direction, much in the same manner as concentrations decreased in fish. Radioactivity originating from the plant was not above detection limits in any terrestrial food item sampled beyond 6.5 km from the plant. Based on the usage factors provided by individuals interviewed in a 1984 survey, the fish and aquatic-organism ingestion pathway contributed the largest radiological dose to humans utilizing products contaminated with the radionuclides in the liquid wastes discharged from the Rancho Seco Nuclear Power Generating Station in 1984.

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

1985-03-22

87

[Generation of a synthetic seismic data base]. Final report  

SciTech Connect

A consortium (Los Alamos, Sandia, OR, Livermore) have been collaborating under the GONII project to generate a synthetic seismic data base. Two deliverables were a common code that would run on the various site machines, and the use of these codes to generate parts of the final data base. The data base consists of a large number of shots applied to two geographic models developed by another part of GONII, the salt model and the overthrust model,s which were supplied as large files containing propagation velocity on a 3-D grid. Los Alamos was supplied with the source code of a seismic propagation code written by the French Petroleum Institute. A decision was made to port a subset of the code to Fortran on a node. Part of this contract was spent verifying/debugging the Fortran on a node code; a port of the code was made to run on the Cray. A total of 846 shots were run on the CM5. It was found that files on the SDA are not safe from corruption and the model velocity file may change.

Aldrich, C.H. III [Mission Research Corp., Los Alamos, NM (United States)

1995-10-22

88

BWR/6 startup and transient tests at Grand Gulf Nuclear Station: Final report  

SciTech Connect

This report documents the results of four plant tests performed during the Grand Gulf Nuclear Station Unit 1 startup test program. The report provides a source of first-of-a-kind BWR/6 data and an interpretation of the major data trends. The data may be applied in the qualification of reactor simulation computer codes. The transient data were recorded through the use of a General Electric Transient Analysis Recording System (GETARS). The detailed data trends are provided in Part I of the proprietary version of this report (2nd tier). Part II of the 2nd tier (proprietary) report entitled, ''Reactor Design Data for Grand Gulf Nuclear Station Unit 1,'' provides the reactor design data which can be used for the construction of a computer model to simulate the transients reported herein. The actual data are available from Electric Power Research Institute. 5 refs., 1 fig., 11 tabs.

Bhandari, B.J.; Crouch, W.D.; Nir, I.; Peng, S.J.; Rao, D.; Sanjines, L.F.; Alesil, G.; Nourse, R.D.

1989-03-01

89

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

90

Waste-minimization opportunity assessment: Naval Undersea Warfare Engineering Station, Keyport, Washington. Final report  

SciTech Connect

The report describes the application of EPA's waste minimization assessment procedures to a torpedo maintenance facility at the Naval Undersea Warfare Engineering Station, Keyport, WA. The assessment focused on the Mark 48 shop and the Mark 46 shop. These shops service the Mark 48 torpedo and the Mark 46 torpedo respectively. The five waste minimization options presented are volume reduction of contaminated clothing, automated cleaning of parts, automated fuel tank draining, modification of the deep sink draining schedule and recycling of mineral spirits.

Not Available

1991-07-01

91

A Second-Generation Volatile Organic Analyzer for the International Space Station  

NASA Technical Reports Server (NTRS)

Early in the development of the Crew Health Care System (CHECS) for the International Space Station (ISS), it was recognized that detection of target volatile organic compounds would be a key component of the air monitoring strategy. Experiences during the NASA/Mir program supported the decision to include a real-time volatile organic analyzer (VOA) aboard ISS to help assess the impact of air quality events on crew health and determine the effectiveness of decontamination efforts. Toward this end, a joint development by the Toxicology Laboratory at Johnson Space Center and Graseby Dynamics produced a VOA that has been delivered and is ready for the first 5 years of ISS operation. The first-generation VOA selection criteria included minimizing size, weight, and power consumption while maintaining analytical performance. Measuring available technologies against these criteria, a VOA system based upon gas chromatography/ion mobility spectrometry (GC/IMS) was selected in the mid-90's. However, as NASA looks forward to later-stage ISS operations and to new frontiers such as human exploration of Mars, the ISS VOA (weighing 43 kg and consuming 160 watts) must be replaced by a smaller, less resource-intensive device. This paper will present a possible second-gene ration VOA based upon the same technology as the first-generation unit. Utilizing GC/IMS technology again will permit the instrumental data and experience gained during the initial phase of ISS to be applied to later ISS phases and advanced spacecraft missions. During the past 3 years, efforts to reduce the size of ion mobility spectrometers have been pursued by Graseby Dynamics, the manufacturer of the first-generation VOA. The concept of operation, expected analytical performance, and estimated size of a fully functional second-generation VOA based upon GC/mini-IMS technology will be presented. Furthermore, results of initial laboratory evaluations will be shown.

Limero, Thomas; Reese, Eric; Peters, Randy; James, John T.

1999-01-01

92

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

93

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...

94

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

Federal Register 2010, 2011, 2012, 2013, 2014

...and 50-362; NRC-2010-0101] Southern...Generating Station (SONGS), Unit 2 and Unit...capabilities at the SONGS site and provides...by the March 31, 2010, deadline, justification...from the March 31, 2010, compliance date...realized when the SONGS security...

2010-03-24

95

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

Microsoft Academic Search

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

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

2007-01-01

96

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

Code of Federal Regulations, 2010 CFR

The following area is a security zone: the waters of the Delaware River in the vicinity of the Salem and Hope Creek Generation Stations bounded by a line drawn from a point located at 3928?08.0? N, 07532?31.7? W to 3928?06.5? N, 07532?47.4? W, thence to...

2010-07-01

97

Navajo Generating Station and Clean-Energy Alternatives: Options for Renewables  

SciTech Connect

In January 2012, the National Renewable Energy Laboratory delivered to the Department of the Interior the first part of a study on Navajo Generating Station (Navajo GS) and the likely impacts of BART compliance options. That document establishes a comprehensive baseline for the analysis of clean energy alternatives, and their ability to achieve benefits similar to those that Navajo GS currently provides. This analysis is a supplement to NREL's January 2012 study. It provides a high level examination of several clean energy alternatives, based on the previous analysis. Each has particular characteristics affecting its relevance as an alternative to Navajo GS. It is assumed that the development of any alternative resource (or portfolio of resources) to replace all or a portion of Navajo GS would occur at the end of a staged transition plan designed to reduce economic disruption. We assume that replacing the federal government's 24.3% share of Navajo GS would be a cooperative responsibility of both the U.S. Bureau of Reclamation (USBR) and the Central Arizona Water Conservation District (CAWCD).

Hurlbut, D. J.; Haase, S.; Turchi, C. S.; Burman, K.

2012-06-01

98

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

99

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

100

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

101

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

102

Number of individuals and injury rates of economically important fish passing through the P. H. Robinson Generating Station  

E-print Network

twice weekly at four trawl (two in intake canal and two in discharge canal) and one revolving-screen stations. Screen collections were made for 25 minutes starting at 0700, 1500, and 2200 hr. High mortality associated with the generating station... nearly always was limited to the hot-water months when the least fish were present. Blue crabs and algal mats injured many of the fish impinged on the screens. Mean-catch-per-effort values for intake-canal-trawl tows were generally larger than those...

Landry, Andre Myrton

1971-01-01

103

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

104

Challenges and Opportunities for Compound Semiconductor Devices in Next Generation Wireless Base Station Power Amplifiers  

E-print Network

Station Power Amplifiers Lawrence Larson, Peter Asbeck, and Donald Kimball Center for Wireless Communications, Dept of ECE, UCSD, La Jolla, CA 92093 Abstract -- Power Amplifiers for cellular base stations amplifiers will grow to well over $2B/year. These amplifiers typically produce 20- 80W of RF power, have

Asbeck, Peter M.

105

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

106

Advanced wet flue gas desulfurization and denitrification process, Miami Fort station. Volume 1: Final report  

SciTech Connect

The Cincinnati Gas and Electric Company and Dravo Lime Company successfully completed a pilot plant testing program for the Ohio Coal Development Office. The 3 to 4.5 MW pilot system was installed at the Miami Fort station of the Cincinnati Gas and Electric Company near North Bend, Ohio, and treated a slipstream of flue gas taken from Miami Fort Unit 7. The pilot plant was designed and constructed to test improvements to the magnesium-enhanced lime wet flue gas desulfurization (MEL FGD) process. Construction of the pilot facility and testing were co-sponsored by the Ohio Coal Development Office, Cincinnati Gas and Electric Co., and Dravo Lime Company. The magnesium-enhanced lime wet FGD process, also known as the Thiosorbic{reg_sign} lime process, was developed by Dravo Lime Company. The project had three main objectives. The first was to test design concepts that, if proven in pilot tests and then implemented in a full-scale FGD system, could reduce the cost of equipment required for FGD. A 30 percent reduction in overall equipment cost was sought, along with reduction in operating costs. The baseline for cost reduction was the cost of a conventional limestone-based FGD system. One purpose of the project was to test concepts to improve the magnesium-enhanced lime FGD system. These concepts, if successfully tested, could lead to new design bases for MEL FGD systems.

Not Available

1991-11-01

107

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

108

An assessment of tree health and trace element accumulation near a coal-fired generating station, Manitoba, Canada.  

PubMed

A forest health assessment was performed in stands dominated by bur oak and trembling aspen to study the potential effects of airborne emissions from a 132 MW coal-fired station. Forty-two stands were sampled within a 16-km radius of the station for both foliar stress symptoms and trace element toxicology. The concentrations of tracer elements (As, Ba, Sr, and V) in the leaf litter were not spatially congruent with airborne emission deposition models (except Ba, which showed elevated levels immediately SE of the station), nor were they at phytotoxic levels. Elemental concentrations were significantly related to soil parameters including organic matter and texture. No patterns were found in forest health along directional or distance gradients from the generating station. Trembling aspen stands demonstrated little decline in general, but three of the 19 bur oak plots, all located on thin sandy soils developed on calcareous till, demonstrated branch dieback. In addition to poor soil conditions, two of these sites also had high water tables, and exhibited tree mortality. The bur oak decline did not appear to be related to emissions from the station, but is suspected to be a result of poor site quality, with urban development as a confounding factor. PMID:16738780

Boone, R; Westwood, R

2006-10-01

109

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

110

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

Microsoft Academic Search

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.

E. A. Knoth; D. P. Bauer

1988-01-01

111

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

112

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

113

Evaluations of HRI (heat recovery incinerators) at NS (Naval Station) Mayport and NAS (Naval Air Station) Jacksonville, Florida lessons-learned report. Final report, January-June 1984  

SciTech Connect

The heat recovery incinerators (HRI) at Naval Station Mayport and Naval Air Station Jacksonville, Fla., were studied to determine any lessons that could be learned from the planning, design, construction, operation, and maintenance of these HRIs. The study examined the various problems in these areas, including description of each problem, an analysis of why the problem occurred, and a description of how the problem was alleviated, if it was corrected.

Frounfelker, R.; Belencan, H.

1984-07-01

114

Solar heating and domestic hot water system installed at Kansas City, Fire Station, Kansas City, Missouri. Final report  

SciTech Connect

This document is the final report of the solar energy heating and hot water system installed at the Kansas City Fire Station, Number 24, 2309 Hardesty Street, Kansas City, Missouri. The solar system was designed to provide 47 percent of the space heating, 8800 square feet area and 75 percent of the domestic hot water (DHW) load. The solar system consists of 2808 square feet of Solaron, model 2001, air, flat plate collector subsystem, a concrete box storage subsystem which contains 1428 cubic feet of 1/2 inch diameter pebbles weighing 71 1/2 tons, a DHW preheat tank, blowers, pumps, heat exchangers, air ducting, controls and associated plumbing. Two 120-gallon electric DHW heaters supply domestic hot water which is preheated by the solar system. Auxiliary space heating is provided by three electric heat pumps with electric resistance heaters and four 30-kilowatt electric unit heaters. There are six modes of system operation. This project is part of the Department of Energy PON-1 Solar Demonstration Program with DOE cost sharing $154,282 of the $174,372 solar system cost. The Final Design Review was held March 1977, the system became operational March 1979 and acceptance test was completed in September 1979.

None

1980-07-01

115

Effectiveness of a High-Frequency-Sound Fish Diversion System at the Annapolis Tidal Hydroelectric Generating Station, Nova Scotia  

Microsoft Academic Search

We describe an experiment to assess the effectiveness of a fish diversion system that utilizes high-frequency sound at the Annapolis Tidal Generating Station, Nova Scotia, Canada, during the fall of 1999. A band-limited, random-noise signal, with most of the energy focused between 122 and 128 kHz, was projected into the turbine forebay during randomly selected gen- erating cycles. The effectiveness

A. JAMIE F. G IBSON

2002-01-01

116

National Account Energy Alliance Final Report for the Basin Electric Project at Northern Border Pipeline Company's Compressor Station #7, North Dakota  

SciTech Connect

A field research test and verification project was conducted at the recovered energy generation plant at Northern Border Pipeline Company Compressor Station #7 (CS#7) near St. Anthony. Recovered energy generation plant equipment was supplied and installed by ORMAT Technologies, Inc. Basin Electric is purchasing the electricity under a purchase power agreement with an ORMAT subsidiary, which owns and operates the plant.

Sweetzer, Richard [Exergy Partners Corp.; Leslie, Neil [Gas Technology Institute

2008-02-01

117

Verification and Validation of the GNSS Stations at the Prototype Core Site for NASA's Next Generation Space Geodesy Network  

NASA Astrophysics Data System (ADS)

Two operational GNSS stations, GODN and GODS, were established within 100 m of each other at the prototype core site of NASA's next generation Space Geodesy Network. The planned network will co-locate each of the four space geodetic techniques, GNSS, SLR, VLBI, and DORIS, with the goal of meeting modern requirements for the International Terrestrial Reference Frame. This prototype site is located at NASA's Geophysical and Astronomical Observatory at the Goddard Space Flight Center. The two GNSS stations at the prototype site have been producing tracking data from the GPS, GLONASS, and Galileo constellations since January 17, 2012. We present results from the verification and validation of these two stations, focusing in particular on GPS-based positioning of these two sites to monitor their relative baseline vector. We compare baseline recovery from independent precise point positioning of each station to a network-based approach. We also show the impact on the baseline as well as station repeatability from various improvements to our processing approach, namely the application of empirical antenna calibrations, elevation-dependent weighting, and site-specific troposphere modeling. Together, these approaches have resulted in a factor of two improvement in the precision of the baseline length. The standard deviation of the baseline vector, when using independent precise positioning of each station, is 0.5, 0.4, 1.6, and 0.4 mm in the east, north, up, and length components. The difference between the GPS-based baseline length and that from an independent local tie survey is < 1 mm.

Desai, S. D.; Gross, J.; Haines, B. J.; Stowers, D. A.

2013-12-01

118

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

119

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

NASA Astrophysics Data System (ADS)

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 the summer of 1999 and used successfully to determine the copper content of the bifurcations over the range 0.04%

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

2001-06-01

120

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

-weekly by trawling and seining from November 1969 through December 1972 at 24 stations in Trinity and Tabbs Bays. Collecting stations were located in the intake and dis- charge areas of Houston Lighting & Power Company s Cedar Bayou Generating Station east... 52 55 55 60 61 BIOLOGICAL DATA Temporal Analysis. Seasonal Trawl Data Seine Data. Spatial-Temporal Analysis. Cool Season Trawl Collections Warm Season Trawl Collections Summary Cool Season Seine Data. Warm Season Seine Collections...

Holt, Scott Allen

1976-01-01

121

Next generation geothermal power plants. Draft final report  

SciTech Connect

The goal of this project is to develop concepts for the next generation geothermal power plant(s) (NGGPP). This plant, compared to existing plants, will generate power for a lower levelized cost and will be more competitive with fossil fuel fired power plants. The NGGPP will utilize geothermal resources efficiently and will be equipped with contingencies to mitigate the risk of reservoir performance. The NGGPP design will attempt to minimize emission of pollutants and consumption of surface water and/or geothermal fluids for cooling service.

Brugman, John; Hattar, John; Nichols, Kenneth; Esaki, Yuri

1994-12-01

122

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

Federal Register 2010, 2011, 2012, 2013, 2014

...Richland, WA. Possible alternatives to the proposed action...action and reasonable alternative energy sources. ADDRESSES...3) combination alternative (NGCC, hydroelectric...coal-fired power; (6) energy conservation and...

2012-04-13

123

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

124

Use of generator produced neutrons in coal analysis. Final report  

Microsoft Academic Search

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. N. Thorpe; F. Senftle; J. L. Mikesell

1988-01-01

125

Next Generation Risk Assessment: Incorporation of Recent Advances in Molecular, Computational, and Systems Biology (Final Report)  

EPA Science Inventory

This final report, "Next Generation Risk Assessment: Recent Advances in Molecular, Computational, and Systems Biology", describes new approaches that are faster, less resource intensive, and more robust that can help address the challenges of assessing potential health hazards fo...

126

Power factor and harmonic distortion optimization in a photovoltaic generating power station  

Microsoft Academic Search

The paper deals with the problem of optimising the interface of a photovoltaic power station with the electrical power system. Firstly, a typical scheme based on the direct DC\\/AC conversion of the electrical power produced by the photovoltaic cells, obtained by means of line commutated converters, is critically analysed. Then, a solution based an a double conversion, DC\\/DC and DC\\/AC,

R. Carbone; P. Marino; A. Testa; F. Vasca

1996-01-01

127

Life Science on the International Space Station Using the Next Generation of Cargo Vehicles  

NASA Technical Reports Server (NTRS)

With the retirement of the Space Shuttle and the transition of the International Space Station (ISS) from assembly to full laboratory capabilities, the opportunity to perform life science research in space has increased dramatically, while the operational considerations associated with transportation of the experiments has changed dramatically. US researchers have allocations on the European Automated Transfer Vehicle (ATV) and Japanese H-II Transfer Vehicle (HTV). In addition, the International Space Station (ISS) Cargo Resupply Services (CRS) contract will provide consumables and payloads to and from the ISS via the unmanned SpaceX (offers launch and return capabilities) and Orbital (offers only launch capabilities) resupply vehicles. Early requirements drove the capabilities of the vehicle providers; however, many other engineering considerations affect the actual design and operations plans. To better enable the use of the International Space Station as a National Laboratory, ground and on-orbit facility development can augment the vehicle capabilities to better support needs for cell biology, animal research, and conditioned sample return. NASA Life scientists with experience launching research on the space shuttle can find the trades between the capabilities of the many different vehicles to be confusing. In this presentation we will summarize vehicle and associated ground processing capabilities as well as key concepts of operations for different types of life sciences research being launched in the cargo vehicles. We will provide the latest status of vehicle capabilities and support hardware and facilities development being made to enable the broadest implementation of life sciences research on the ISS.

Robinson, J. A.; Phillion, J. P.; Hart, A. T.; Comella, J.; Edeen, M.; Ruttley, T. M.

2011-01-01

128

Final Monitoring Station Installation  

USGS Multimedia Gallery

Inside the brown fiberglass hut, USGS Field Engineer Martin LaFevers connects the seismometer and Global Positioning System (GPS) to a power supply in preparation for the transmission of seismic and GPS data in near real-time. Newberry has been identified by the USGS as a very high threat volcano ow...

129

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

130

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

131

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

132

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

133

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

134

A preliminary study on the effects of combined halogenation and thermal recirculation at a coal-fired generating station  

SciTech Connect

East Bend Station is a single-unit, 650 megawatt, coal-fired generating station, located at Ohio River mile 510, near Rabbit Hash, Kentucky. Zebra mussel (Dreissena polymorpha) veligers were first detected at East Bend on 23 July 1992. Since then, the station has adopted a plan for preventing the settlement of zebra mussel veligers, by utilizing a combined halogenation and thermal recirculation treatment regime. A backflush pipeline was constructed, allowing 100% of the heated service water to be recycled through the intake well. During weekly treatments, the service water return to the river is valved out and water temperature is ramped up to between 31{degrees} - 35{degrees}C. HTH (calcium hypochlorite @65% available chlorine) is then slug-fed directly into the intake well. The temperature is maintained until the chlorine residual is below detectable limits. In addition to the weekly combined treatments, the service water system is also brominated for two hours, three times weekly, to 0.5 mg/1 TRO. Treatment efficacy is monitored, using a plexiglas biobox, seeded with adult mussels obtained from a substrate monitor attached to a barge cell and submerged to a depth of 3 meters. Preliminary results show both treatments to be ineffective for adult kill, however, it is believed that any newly-settle juveniles are being killed. Intake and equipment inspections during an upcoming unit outage will provide further verification. Additional testing, using various halogenation techniques, will be conducted during 1995.

Schnelle, R.C.; Strimple, P.D. [Cincinnati Gas & Electric Company, OH (United States)

1995-06-01

135

Development of tungsten-tantalum generator. Final report  

SciTech Connect

The purpose of this project was to develop a useable tungsten (W)/tantalum (Ta) generator. Ta-178 is formed following the decay of its parent, W-178 (half-life: 21.7d) and has a half life of 9.3 minutes in turn yielding stable Hf-178. The decay of the parent isotope (W-178) occurs entirely by electron capture to the 9.3 minute Ta-178 state, without feeding the high spin Ta-178 isomer (half life 2.2 hours). In Ta-178 decay, 99.2% of the disintegrations proceed by electron capture and 0.18% by positron emission. Electron capture results in a 61.2% branch to the ground state of Hf-178 and 33.7% to the first excited state at 93 1KeV. The most prominent features of the radionuclide's energy spectrum are the hafnium characteristic radiation peaks with energies between 54.6 and 65.0 KeV. The radiation exposure dose of Ta-118 was calculated to be approximately one-twentieth that of Tc-99m on a per millicurie basis. A twenty-fold reduction in radiation exposure from Ta-178 compared with Tc-99m means that the usual administered dose can be increased three or four times, greatly increasing statistical accuracy while reducing radiation exposure by a factor of five.

Leblanc, A.; Babich, J.; Jhingran, S.G.

1985-01-01

136

Second-generation-heliostat optimization studies. Final report  

SciTech Connect

The objective of this study was to define and quantify cost reductions in the Martin Marietta Denver Aerospace Second Generation Heliostat resulting from design and cost optimization. These cost reductions were based on optimizing the heliostat performance vs. cost and engineering design, and reviewing the design specification in selected technological areas with a goal of removing nonrealistic requirements and eliminating or minimizing overdesign. Specific technological areas investigated were: (1) designing the heliostat for survival strength rather than stiffness and reducing the operational wind requirements as dictated by this design approach; (2) reducing the pointing accuracy and/or beam quality required for some fraction or all of the heliostat field; (3) modifying the operational temperature range; (4) relaxing the rate at which the heliostat must move in the slew mode; (5) using alternate beam safety strategies; (6) analyzing actual wind data for selected sites in the southwest United States vs. the heliostat design specification survival wind requirements; (7) estimating heliostat damage for winds in excess of the design specification over a 30 year period; (8) evaluating the impact of designing the heliostat for higher wind loads; and (9) investigating the applicability to heliostat design of the standard engineering practices for designing buildings.

Not Available

1982-05-01

137

Assessment of gas engine drives for CNG compressors at NGV fueling stations. Final technical report, June 1993April 1995  

Microsoft Academic Search

This report assesses the technical and economic issues associated with the use of gas engine drives for gas compressors at natural gas vehicle (NGV) fueling stations. The use of gas engine drives and electric motor drives is compared for typical time fill, fast fill, and combined fill applications. NGV fueling station equipment is described with an emphasis on gas engine

J. Keder; K. G. Darrow

1995-01-01

138

HYDROGEN GENERATION FROM ELECTROLYSIS - REVISED FINAL TECHNICAL REPORT  

SciTech Connect

DOE GO13028-0001 DESCRIPTION/ABSTRACT This report is a summary of the work performed by Teledyne Energy Systems to understand high pressure electrolysis mechanisms, investigate and address safety concerns related to high pressure electrolysis, develop methods to test components and systems of a high pressure electrolyzer, and produce design specifications for a low cost high pressure electrolysis system using lessons learned throughout the project. Included in this report are data on separator materials, electrode materials, structural cell design, and dissolved gas tests. Also included are the results of trade studies for active area, component design analysis, high pressure hydrogen/oxygen reactions, and control systems design. Several key pieces of a high pressure electrolysis system were investigated in this project and the results will be useful in further attempts at high pressure and/or low cost hydrogen generator projects. An important portion of the testing and research performed in this study are the safety issues that are present in a high pressure electrolyzer system and that they can not easily be simplified to a level where units can be manufactured at the cost goals specified, or operated by other than trained personnel in a well safeguarded environment. The two key objectives of the program were to develop a system to supply hydrogen at a rate of at least 10,000 scf/day at a pressure of 5000psi, and to meet cost goals of $600/ kW in production quantities of 10,000/year. On these two points TESI was not successful. The project was halted due to concerns over safety of high pressure gas electrolysis and the associated costs of a system which reduced the safety concerns.

IBRAHIM, SAMIR; STICHTER, MICHAEL

2008-07-31

139

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

140

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

141

Final Report Recommended Actions to Reduce Electrical Peak Loads at the Marine Corps Air Station at Camp Pendleton, California  

SciTech Connect

PNNL conducted a walk-through audit of Marine Corps Air Station at Camp Pendleton. The audit inspected a significant portion of the site and identified a large number of similar energy saving opportunities across all building types.

Hail, John C.; Brown, Daryl R.; McCullough, Jeffrey J.; Underhill, Ronald M.

2001-05-08

142

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

143

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

Federal Register 2010, 2011, 2012, 2013, 2014

...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

144

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

145

Space Station Power Generation Investigated 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 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 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 (see the on-orbit photograph). The magnitude of the motor currents continued to increase over time on both BGAs, 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. The BGA provides two critical capabilities to the ISS: (1) transfer of electrical power across a rotating joint and (2) positioning of the solar arrays. A number of engineering disciplines convened in May 2001 to address this on-orbit hardware anomaly. Over the course of a year, many scenarios were developed and used. Only two are discussed here: parked arrays and dual-angle mode.

Delleur, Ann M.; Propp, Timothy

2004-01-01

146

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

147

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

148

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

149

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 a wide variability exists 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 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 the ISS.

Rodriquez, Branelle; Anderson, Molly; Adams, Niklas; Vega, Leticia; Botkin, Douglas

2013-01-01

150

Seismic structural fragility investigation for the San Onofre Nuclear Generating Station, Unit 1 (Project I); SONGS-1 AFWS Project  

SciTech Connect

An evaluation of the seismic capacities of several of the San Onofre Nuclear Generating Station, Unit 1 (SONGS-1) structures was conducted to determine input to the overall probabilistic methodology developed by Lawrence Livermore National Laboratory. Seismic structural fragilities to be used as input consist of median seismic capacities and their variabilities due to randomness and uncertainty. Potential failure modes were identified for each of the SONGS-1 structures included in this study by establishing the seismic load-paths and comparing expected load distributions to available capacities for the elements of each load-path. Particular attention was given to possible weak links and details. The more likely failure modes were screened for more detailed investigation.

Wesley, D.A.; Hashimoto, P.S.

1982-04-01

151

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

152

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

153

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

154

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.

155

Reliability, availability, and maintainability of the Heat Recovery Incinerator at Naval Air Station, Jacksonville. Final report, June 1982May 1983  

Microsoft Academic Search

The performance of the Heat Recovery Incinerator (HRI) at Naval Air Station (NAS) Jacksonville, Fla., was studied from June 1982 to May 1983. The study included RAM (reliability, availability, maintainability) analysis of hardware components and five functional missions: (1) processing and incinerating waste and producing steam; (2) processing and incinerating waste; (3) incinerating waste; (4) incinerating waste and producing steam;

Zimmerle

1984-01-01

156

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

157

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

158

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

E-print Network

by the Cooperative State Research, Education, and Extension Service, U.S. Department of Agriculture, under Agreement Numbers 2005-45049-03209 and 2005-34461-15661. This information is a reproduction of excerpts from a guest column developed by Ed Rister and Ron1... Lacewell and edited by Rachel Alexander for the first issue of the Rio Grande Basin Initiative newsletter published in Rio Grande Basin Initiative Outcomes, 1(1) (Rister and Lacewell). Main Canal, Laterals, and Diversion Pump Station Final March, 2006...

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

159

Improved selective catalytic NOx control technology for compressor station reciprocating engines. Final report, September 1991-September 1992  

SciTech Connect

The objective of the program was to identify and assess improvements to Selective Catalytic Reduction (SCR) exhaust gas NOx control processes for stationary reciprocating engines at pipeline compressor stations. Based on commercial application experience in Europe and the U.S., it is evident that SCR systems have been successfully applied to control NOx emissions from natural gas fueled stationary engines. Nevertheless, cost, maintenance, and automation related aspects of most commercial SCR systems currently render the technology an unattractive NOx control option for pipeline compressor station engines. Desirable and feasible improvements to SCR technology were defined through interaction with technology consumers (pipeline companies) and technology suppliers (SCR manufacturers), followed by independent analyses. The key technologies recommended for advancement include: A non-extractive, continuous emissions monitoring system, integration and automation of optimized engine/SCR systems, engine NOx emission mapping and feed-forward control of the SCR process, and qualification and use of commercially available low phosphorus lube oils.

Benson, C.E.; Benedek, K.R.; Loftus, P.J.

1992-09-01

160

Concept for passive heating at meter\\/gate stations. Final report, December 1987August 1990. Technical report  

Microsoft Academic Search

Foster-Miller conducted a program for the Gas Research Institute to develop a passive reheat method of heating natural gas flows following pressure reductions at regulating stations. When natural gas passes through a regulator, its temperature is reduced approximately 7F per 100 psi drop. The concept was developed as an economical alternative to gas-fueled preheaters which are currently used to avoid

W. S. Hill; E. C. Poulin

1992-01-01

161

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

scheme for main effects to be tested in a preliminary analysis of variance . . . . . . . . . . . , . . 9 3. Number of macro-invertebrates collected by active trawling . 16 Number of Penaeus aztecus by date collected by active trawling 17 5. 6. 7. 8.... Robinson Generating Station showing the arrangement of the plant and cooling-water canal system and the location of trawl stations. TABLE 1. -Average distance travelled (m) by station for surface and bottom trawl collections Station Surface Bottom Main...

Margraf, F. Joseph

1977-01-01

162

Generation IV Nuclear Energy Systems Construction Cost Reductions through the Use of Virtual Environments - Final Report  

SciTech Connect

Final report of 3 year DOE NERI-sponsored effort evaluating immersive virtual reality (CAVE) technology for design review, construction planning, and maintenance planning and training for next generation nuclear power plants. Program covers development of full-scale virtual mockups generated from 3D CAD data presented in a CAVE visualization facility. Mockups applied to design review of AP600/1000, Construction planning for AP 600, and AP 1000 maintenance evaluation. Proof of concept study also performed for GenIV PBMR models.

Timothy Shaw; Anthony Baratta; Vaughn Whisker

2005-02-28

163

Exhaust treatment technology for two-stroke reciprocating engines at compressor stations. Final report, October 1991-September 1992  

SciTech Connect

The overall objective of the three-task project was to develop a low-cost catalyst for the removal of NOx in the exhaust of reciprocating engines at compressor stations. The installed engine population includes many older engines with a characteristic exhaust condition of 15 percent oxygen, 1000 ppm NOx, and 300 to 500 C. The report presents a review of the literature for active materials; an experimental evaluation of metal fibers (catalysts); and the mechanism for NOx reduction. NOx reductions on the order of 30 percent were obtained in 500 C flue gas containing 10 percent oxygen with a nickel alloy fiber catalyst using methane as a reducing agent.

George, P.E.; Raghavan, J.K.

1993-07-14

164

Remedial investigation of contaminant mobility at Naval Weapons Station, Concord, California. Subtitle Appendix 2. 5. 1986/1987. Final report  

SciTech Connect

This report is an appendix to Miscellaneous Paper EL-86-2. It contains corrections and supplemental information to the original report, as well as data collected between June 1986 and August 1987 to supplement previously reported data and to further delineate the extent of contamination at Naval Weapons Station, Concord, California. It also assesses the impact of the 1986 flood on the redistribution of contamination. The derived data include soil analysis, a clam bioassay, and ground-water samples. Wetland boundaries were also delineated.

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

1988-06-01

165

Experience in ultrasonic gap measurement between calandria tubes and liquid injection shutdown systems nozzles in Bruce Nuclear Generating Station  

SciTech Connect

The gaps between calandria tubes (CT) and Liquid Injection Shutdown System (LISS) nozzles at the Bruce Nuclear Generating Station ``A`` (Bruce A) are known to decrease with time due to radiation induced creep/sag of the calandria tubes. If this gap decreases to a point where the calandria tubes come into contact with the LISS nozzle, the calandria tubes could fail as a result of fretting damage. Proximity measurements were needed to verify the analytical models and ensure that CT/LISS nozzle contact does not occur earlier than predicted. The technique used was originally developed at Ontario Hydro Technologies (formerly Ontario Hydro Research Division) in the late seventies and put into practical use by Research and Productivity Council (RPC) of New Brunswick, who carried out similar measurements at Point Lepreau NGS in 1989 and 1991. The gap measurement was accomplished y inserting an inspection probe, containing four ultrasonic transducers (2 to measure gaps and 2 to check for probe tilt) and a Fredericks electrolytic potentiometer as a probe rotational sensor, inside LISS Nozzle {number_sign}7. The ultrasonic measurements were fed to a system computer that was programmed to convert the readings into fully compensated gaps, taking into account moderator heavy water temperature and probe tilt. Since the measured gaps were found to be generally larger than predicted, the time to CT/LISS nozzle contact is now being re-evaluated and the planned LISS nozzle replacement will likely be deferred, resulting in considerable savings.

Abucay, R.C.; Mahil, K.S.; Goszczynski, J.J.

1995-08-01

166

Test and evaluation of the heat recovery incinerator system at Naval Station, Mayport, Florida. Final report, June 1980-April 1981  

SciTech Connect

This report describes test and evaluation of the two-ton/hr heat recovery incinerator (HRI) facility located at Mayport Naval Station, FL, carried out during November and December 1980. The tests included: (1) Solid Waste: characterization, heating value, and ultimate analysis, (2) Ash: moisture, combustibles, and heating values of both bottom and cyclone ashes; Extraction Procedure toxicity tests on leachates from both bottom and cyclone ashes; trace metals in cyclone particulates, (3) Stack Emissions: particulates (quantity and size distribution), chlorides, oxygen, carbon dioxide, carbon monoxide, and trace elements, and (4) Heat and Mass Balance: all measurements required to carry out complete heat and mass balance calculations over the test period. The overall thermal efficiency of the HRI facility while operating at approximately 1.0 ton/hr was found to be 49% when the primary Btu equivalent of the electrical energy consumed during the test program was included.

Not Available

1981-05-01

167

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

168

Solar powered hydrogen generating facility and hydrogen powered vehicle fleet. Final technical report, August 11, 1994January 6, 1997  

Microsoft Academic Search

This final report describes activities carried out in support of a demonstration of a hydrogen powered vehicle fleet and construction of a solar powered hydrogen generation system. The hydrogen generation system was permitted for construction, constructed, and permitted for operation. It is not connected to the utility grid, either for electrolytic generation of hydrogen or for compression of the gas.

Provenzano

1997-01-01

169

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

170

Validated Models for Radiation Response and Signal Generation in Scintillators: Final Report  

SciTech Connect

This Final Report presents work carried out at Pacific Northwest National Laboratory (PNNL) under the project entitled Validated Models for Radiation Response and Signal Generation in Scintillators (Project number: PL10-Scin-theor-PD2Jf) and led by Drs. Fei Gao and Sebastien N. Kerisit. This project was divided into four tasks: 1) Electronic response functions (ab initio data model) 2) Electron-hole yield, variance, and spatial distribution 3) Ab initio calculations of information carrier properties 4) Transport of electron-hole pairs and scintillation efficiency Detailed information on the results obtained in each of the four tasks is provided in this Final Report. Furthermore, published peer-reviewed articles based on the work carried under this project are included in Appendix. This work was supported by the National Nuclear Security Administration, Office of Nuclear Nonproliferation Research and Development (DNN R&D/NA-22), of the U.S. Department of Energy (DOE).

Kerisit, Sebastien N.; Gao, Fei; Xie, YuLong; Campbell, Luke W.; Van Ginhoven, Renee M.; Wang, Zhiguo; Prange, Micah P.; Wu, Dangxin

2014-12-01

171

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

E-print Network

, variations in mean standard lengths were slight. Three (3) damaged specimens (1. 3X of the catch) were taken; 2 from station 3 and 1 from station 2. Anchoa mitchilli (Valenciennes) 122 Bay anchovy A. mitchilli, occurring, generally, in low numbers... mitchilli (Linnaeus) 2, 266 Bay anchovy A. mitchilli was taken during the entire study. The abundance peak occurred through May and June 1969 with occasional occurrences noted in late June and July. Occurrences in August were more regular. A few...

McCullough, Martha Mary

1971-01-01

172

Biennial reporting system (BRS) data: Generation and management of hazardous waste, 1997 final report  

SciTech Connect

The product contains data compiled by the Biennial Reporting System (BRS) for the ``National Biennial RCRA Hazardous Waste Report (Based on 1997 data).'' The data were collected by states using the ``1997 National Hazardous Waste Report Instructions and Forms'' (EPA Form 8700-13-A/B), or the state's equivalent information source. Data submitted by states prior to December 31, 1997 are included. Data for reports protected by RCRA Confidential Business Information (CBI) claims are not included. These data are preliminary and will be replaced by the final data. The data contain information describing the RCRA wastes generated and/or managed during 1997 by RCRA Treatment, Storage and Disposal Facilities (TSDFs) and RCRA Large Quantity Generators (LQGs). Data are reported by sites meeting the LQG and/or TSDF definitions. Sites are identified by their EPA/RCRA identification number. Response codes match those of the ``1997 Hazardous Waste Report: Instructions and Forms'' (EPA Form 8700-13-A/B).

NONE

1999-05-01

173

Solid radioactive waste management facility design for managing CANDU{sup R} 600 MW nuclear generating station re-tube\\/refurbishment Waste Streams  

Microsoft Academic Search

The main design features of the re-tube canisters, waste handling equipment and waste containers designed by Atomic Energy of Canada Limited (AECL{sup R}) and implemented in support of the re-tube\\/refurbishment activities for Candu 600 MW nuclear generating stations are described in this paper. The re-tube\\/refurbishment waste characterization and the waste management principles, which form the basis of the design activities,

N. Pontikakis; J. Hopkins; D. Scott; V. Bajaj; L. Nosella

2007-01-01

174

Teacher-Generated Final Exams in High School Science: Content, Rigor, and Assessment Literacy  

NASA Astrophysics Data System (ADS)

This study investigates a large collection of teacher-generated end-of-semester final exams from Chicago Public School high school science classrooms in order to explore the depth and breadth of content that students learn in science classrooms. Teachers focus on a specific set of scientific content that is driven by district guidelines and popular textbooks but not particularly aligned to standards. To most teachers, rigor means coverage instead of intellectual press. The assessments, while unsophisticated, seem to be delivering what is expected of them---a way to mimic the most basic format of the ACT exam quickly. There was little variation among high poverty and low poverty schools, matching national data and indicating issues that are more due to a particular culture of science teaching and learning than driven by particular contexts. The study identifies implications for the observed homogeneity of final exam rigor and content, identifies gaps between how the routine of final exams are design and implemented in schools, and discusses similar methodological efforts that could enhance the ability of schools and districts to access useful information about the technical core of instruction.

Lach, Michael

175

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

176

Multi-service radio-over-fiber system with multiple base-station groups enabled by scalable generation of multi-frequency MMWs  

NASA Astrophysics Data System (ADS)

In this paper, we propose and verify a novel hierarchical radio-over-fiber (RoF) system with multiple base-station groups (BSGs). The proposed RoF system has a two-stage structure to provide the access of multiple services for each BS in BSGs, utilizing the scalable generation of multi-frequency millimeter-waves (MMWs). By using the four-wave mixing (FWM) effect in a semiconductor optical amplifier (SOA), multi-frequency MMWs can be generated with the scalability. The obtained results successfully verify the feasibility of our proposed multi-service access RoF system with BSGs.

Zhang, Qiaoyan; Zhang, Chongfu; Chen, Chen; Jin, Wei; Qiu, Kun; Wu, Baojian; Li, Changchun

177

On-line monitoring of secondary-cycle chemistry with morpholine at the Beaver Valley Power Station: Final report  

SciTech Connect

Beaver Valley is the only PWR with vertical steam generators in the United States which has used morpholine in the all-volatile chemistry control program for its entire operating history. Morpholine is very similar to proposed alternatives to ammonia. Hence, a careful study of its benefits and side effects may provide an indication of the value of additives similar to, but superior to, morpholine. On-line chromatography was used to characterize morpholine, ammonia, organic acids, chloride, fluoride, and sulfate levels at Beaver Valley during operation with different morpholine feed rates. This study verified the feasibility of using on-line ion chromatography to monitor secondary cycle pH control agents, organic acids, and ionic impurities. Morpholine usage will elevate steam generator blowdown cation conductivity by approximately 0.1 to 0.15 ..mu..S/cm as a result of acetic and formic acids. However, organic acid levels do not increase in proportion to morpholine levels, suggesting a threshold reaction that is satisfied at low (e.g., 0.2 ppM) morpholine levels.

Riddle, J.M.; Burns, G.D.; Crutchfield, J.E.; Nolan, C.R.

1987-06-01

178

Second Generation International Space Station (ISS) Total Organic Carbon Analyzer (TOCA) Verification Testing and On-Orbit Performance Results  

NASA Technical Reports Server (NTRS)

The Total Organic Carbon Analyzer (TOGA) is designed to autonomously determine recovered water quality as a function of TOC. The current TOGA has been on the International Space Station since November 2008. Functional checkout and operations revealed complex operating considerations. Specifically, failure of the hydrogen catalyst resulted in the development of an innovative oxidation analysis method. This method reduces the activation time and limits the hydrogen produced during analysis, while retaining the ability to indicate TOC concentrations within 25% accuracy. Subsequent testing and comparison to archived samples returned from the Station and tested on the ground yield high confidence in this method, and in the quality of the recovered water.

Bentley, Nicole L.; Thomas, Evan A.; VanWie, Michael; Morrison, Chad; Stinson, Richard G.

2010-01-01

179

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

180

Paradata for 'Weather Instruments ~^ Weather InstrumentsWeather Instruments for Measuring the Climate of IllinoisBuilding and Using Weather InstrumentsWeather ToolsTyson Research Center Weather Station EquipmentSchool Garden Weather Station MeteorologyNext Generation Weather Lab'  

NSDL National Science Digital Library

This record contains paradata for the resource 'Weather Instruments ~^ Weather InstrumentsWeather Instruments for Measuring the Climate of IllinoisBuilding and Using Weather InstrumentsWeather ToolsTyson Research Center Weather Station EquipmentSchool Garden Weather Station MeteorologyNext Generation Weather Lab'

181

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

NASA Astrophysics Data System (ADS)

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.

1984-08-01

182

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

183

Next Generation Nuclear Plant (NGNP) Prismatic HTGR Conceptual Design Project - Final Technical Report  

SciTech Connect

This report is the Final Technical Report for the Next Generation Nuclear Plant (NGNP) Prismatic HTGR Conceptual Design Project conducted by a team led by General Atomics under DOE Award DE-NE0000245. The primary overall objective of the project was to develop and document a conceptual design for the Steam Cycle Modular Helium Reactor (SC-MHR), which is the reactor concept proposed by General Atomics for the NGNP Demonstration Plant. The report summarizes the project activities over the entire funding period, compares the accomplishments with the goals and objectives of the project, and discusses the benefits of the work. The report provides complete listings of the products developed under the award and the key documents delivered to the DOE.

Saurwein, John

2011-07-15

184

Integrated mild gasification processing at the Homer City Electric Power Generating Station site. Final report, July 1989June 1993  

Microsoft Academic Search

A new process for the production of commercial grade coke, char, and carbon products has been evaluated by Penelec\\/NYSEG. The process, developed by Coal Technology Corporation, CTC, utilizes a unique screw reactor to produce a devolatilized char from a wide variety of coals for the production of commercial grade coke for use in blast furnaces, foundries, and other processes requiring

J. J. Battista; E. A. Zawadzki

1993-01-01

185

Inertial-confinement fusion central-station electric-power-generating plant. Final report, March 1, 1979September 30, 1980  

Microsoft Academic Search

This report contains a complete description of the subsystems of the power plant including driver, driver power supply, pellet fabrication, pellet injection and aiming, data handling and control, evacuation, tritium and radwaste handling, first wall protection, first wall and structure, heat removal, tritium breeding and neutron shielding, maintenance and repair and balance of plant. In addition, it contains analytic support

Sucov

1981-01-01

186

Technology, safety and costs of decommissioning a reference pressurized water reactor power station: Technical support for decommissioning matters related to preparation of the final decommissioning rule  

SciTech Connect

Preparation of the final Decommissioning Rule by the Nuclear Regulatory Commission (NRC) staff has been assisted by Pacific Northwest Laboratory (PNL) staff familiar with decommissioning matters. These efforts have included updating previous cost estimates developed during the series of studies on conceptually decommissioning reference licensed nuclear facilities for inclusion in the Final Generic Environmental Impact Statement (FGEIS) on decommissioning; documenting the cost updates; evaluating the cost and dose impacts of post-TMI-2 backfits on decommissioning; developing a revised scaling formula for estimating decommissioning costs for reactor plants different in size from the reference pressurized water reactor (PWR) described in the earlier study; defining a formula for adjusting current cost estimates to reflect future escalation in labor, materials, and waste disposal costs; and completing a study of recent PWR steam generator replacements to determine realistic estimates for time, costs and doses associated with steam generator removal during decommissioning. This report presents the results of recent PNL studies to provide supporting information in four areas concerning decommissioning of the reference PWR: updating the previous cost estimates to January 1986 dollars; assessing the cost and dose impacts of post-TMI-2 backfits; assessing the cost and dose impacts of recent steam generator replacements; and developing a scaling formula for plants different in size than the reference plant and an escalation formula for adjusting current cost estimates for future escalation.

Konzek, G.J.; Smith, R.I.

1988-07-01

187

HUNTERSTON POWER STATION  

Microsoft Academic Search

S>The research work necessary to enable new requirements for the ; Hunterston power station to be met is outlined, and a brief general description ; of the station is given. Components and techniques described include reactor ; vessel and core, fuel handling, reactor servicing machine, steam raising units, ; gas circuits, control and instrumentation, fuel elements, and generating plant. ;

Millar

1959-01-01

188

78 FR 47800 - License Renewal Application for Byron Station, Units 1 and 2; Exelon Generation Company, LLC  

Federal Register 2010, 2011, 2012, 2013, 2014

...2; Exelon Generation Company, LLC AGENCY: Nuclear...conduct scoping process; public meetings and opportunity...SUMMARY: Exelon Generation Company, LLC (Exelon) has...meetings, where the public can provide oral input...Rulemaking Web site: Go to...

2013-08-06

189

Agricultural Station factsheet  

E-print Network

1 The Nevada Agricultural Experiment Station factsheet series is designed to provide information systems to enhance agriculture, community and economic vitality. INTRODUCTION Several publications sales of wine, wineries and vineyards generate tourism dollars. Traditionally, agricultural production

Cramer, Grant R.

190

Submerged AUV Charging Station  

NASA Technical Reports Server (NTRS)

Autonomous Underwater Vehicles (AUVs) are becoming increasingly important for military surveillance and mine detection. Most AUVs are battery powered and have limited lifetimes of a few days to a few weeks. This greatly limits the distance that AUVs can travel underwater. Using a series of submerged AUV charging stations, AUVs could travel a limited distance to the next charging station, recharge its batteries, and continue to the next charging station, thus traveling great distances in a relatively short time, similar to the Old West Pony Express. One solution is to use temperature differences at various depths in the ocean to produce electricity, which is then stored in a submerged battery. It is preferred to have the upper buoy submerged a reasonable distance below the surface, so as not to be seen from above and not to be inadvertently destroyed by storms or ocean going vessels. In a previous invention, a phase change material (PCM) is melted (expanded) at warm temperatures, for example, 15 C, and frozen (contracted) at cooler temperatures, for example, 8 C. Tubes containing the PCM, which could be paraffin such as pentadecane, would be inserted into a container filled with hydraulic oil. When the PCM is melted (expanded), it pushes the oil out into a container that is pressurized to about 3,000 psi (approx equals 20.7 MPa). When a valve is opened, the high-pressure oil passes through a hydraulic motor, which turns a generator and charges a battery. The low-pressure oil is finally reabsorbed into the PCM canister when the PCM tubes are frozen (contracted). Some of the electricity produced could be used to control an external bladder or a motor to the tether line, such that depth cycling is continued for a very long period of time. Alternatively, after the electricity is generated by the hydraulic motor, the exiting low-pressure oil from the hydraulic motor could be vented directly to an external bladder on the AUV, such that filling of the bladder causes the AUV to rise, and emptying of the bladder allows the AUV to descend. This type of direct buoyancy control is much more energy efficient than using electrical pumps in that the inefficiencies of converting thermal energy to electrical energy to mechanical energy is avoided. AUV charging stations have been developed that use electricity produced by waves on floating buoys and that use electricity from solar photovoltaics on floating buoys. This is the first device that has absolutely no floating or visible parts, and is thus impervious to storms, inadvertent ocean vessel collisions, or enemy sabotage.

Jones, Jack A.; Chao, Yi; Curtin, Thomas

2014-01-01

191

Corrosion performance of alternative steam-generator materials and designs. Volume 1. Summary of corrosion tests of alternative materials and designs in two model steam generators. Final report  

Microsoft Academic Search

Corrosion results obtained from the post-test non-destructive and destructive examinations of two alternative-materials model steam generators are summarized and compared in this final report. The models operated under representative thermal and hydraulic and accelerated (high contaminant concentration) steam generator secondary water-chemistry conditions. One model was faulted with seawater to a level of 30 ppM chloride for 282 steaming days; the

J. J. Krupowicz; R. M. Rentler

1983-01-01

192

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

NASA Astrophysics Data System (ADS)

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.

1984-08-01

193

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

194

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

195

Development of a thermal-hydraulic model of the Back Pressure Regulating Valve for Space Station Freedom  

Microsoft Academic Search

This paper describes the development of a Back Pressure Regulating Valve (BPRV) model for thermal-hydraulic performance analysis of the Space Station Freedom (SSF) Central Thermal Bus (CTB). The CTB is a two-phase ammonia system which transports waste energy generated by station electrical loads to final rejection to space. The BPRV controls the operating temperature of the CTB by controlling the

Matthew Jurick; Phillip E. Bellmore

1992-01-01

196

78 FR 46379 - Exelon Generation Company, LLC, License Renewal Application for Braidwood Station, Units 1 and 2  

Federal Register 2010, 2011, 2012, 2013, 2014

...NRC-2013-0169] Exelon Generation Company, LLC, License Renewal...conduct scoping process; public meetings and opportunity...2013, Exelon Generation Company, LLC (Exelon) submitted...This notice advises the public that the NRC intends...Rulemaking Web site: Go to...

2013-07-31

197

76 FR 25378 - Exelon Generation Company, LLC; PSEG Nuclear, LLC; Peach Bottom Atomic Power Station, Units 2 and...  

Federal Register 2010, 2011, 2012, 2013, 2014

...Docket Nos. 50-277 and 50-278; NRC-2011-0101] Exelon Generation Company, LLC; PSEG Nuclear, LLC; Peach Bottom Atomic Power...NRC or the Commission) has granted the request of Exelon Generation Company, LLC, (Exelon) and [[Page 25379

2011-05-04

198

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

199

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

200

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

201

Solar powered hydrogen generating facility and hydrogen powered vehicle fleet. Final technical report, August 11, 1994--January 6, 1997  

SciTech Connect

This final report describes activities carried out in support of a demonstration of a hydrogen powered vehicle fleet and construction of a solar powered hydrogen generation system. The hydrogen generation system was permitted for construction, constructed, and permitted for operation. It is not connected to the utility grid, either for electrolytic generation of hydrogen or for compression of the gas. Operation results from ideal and cloudy days are presented. The report also describes the achievement of licensing permits for their hydrogen powered trucks in California, safety assessments of the trucks, performance data, and information on emissions measurements which demonstrate performance better than the Ultra-Low Emission Vehicle levels.

Provenzano, J.J.

1997-04-01

202

Station Models  

NSDL National Science Digital Library

This project will allow users to become acquainted with station models that are found on weather maps. Students will study the various atmospheric variables that are depicted on a station model and then practice on an interactive station model program. Part 1 - Being able to read and interpret weather maps is a very important skill in meteorology. One of the most basic skills of predicting the weather is being able to interpret a station model of a given location. A station model is a bundle of information that ...

Mr. Ertl

2007-11-03

203

Final Assessment of Manual Ultrasonic Examinations Applied to Detect Flaws in Primary System Dissimilar Metal Welds at North Anna Power Station  

SciTech Connect

PNNL conducted a technical assessment of the NDE issues and protocols that led to missed detections of several axially oriented flaws in a steam generator primary inlet dissimilar metal weld at North Anna Power Station, Unit 1 (NAPS-1). This particular component design exhibits a significant outside-diameter (OD) taper that is not included as a blind performance demonstration mock-up within the industrys Performance Demonstration Initiative, administered by EPRI. For this reason, the licensee engaged EPRI to assist in the development of a technical justification to support the basis for a site-specific qualification. The service-induced flaws at NAPS-1 were eventually detected as a result of OD surface machining in preparation for a full structural weld overlay. The machining operation uncovered the existence of two through-wall flaws, based on the observance of primary water leaking from the dissimilar metal weld. A total of five axially oriented flaws were detected in varied locations around the weld circumference. The field volumetric examination that was conducted at NAPS-1 was a non-encoded, real-time manual ultrasonic examination. PNNL conducted both an initial assessment, and subsequently, a more rigorous technical evaluation (reported here), which has identified an array of NDE issues that may have led to the subject missed detections. These evaluations were performed through technical reviews and discussions with NRC staff, EPRI NDE Center personnel, industry and ISI vendor personnel, and ultrasonic transducer manufacturers, and laboratory tests, to better understand the underlying issues at North Anna.

Anderson, Michael T.; Diaz, Aaron A.; Cinson, Anthony D.; Crawford, Susan L.; Prowant, Matthew S.; Doctor, Steven R.

2014-03-24

204

NASA Education Activities on the International Space Station: A National Laboratory for Inspiring, Engaging, Educating and Employing the Next Generation  

NASA Technical Reports Server (NTRS)

The International Space Station (ISS) National Lab Education Project has been created as a part of the ISS National Lab effort mandated by the U.S. Congress The project seeks to expand ISS education of activities so that they reach a larger number of students with clear educational metrics of accomplishments. This paper provides an overview of several recent ISS educational payloads and activities. The expected outcomes of the project, consistent with those of the NASA Office of Education, are also described. NASA performs numerous education activities as part of its ISS program. These cover the gamut from formal to informal educational opportunities in grades Kindergarten to grade 12, Higher Education (undergraduate and graduate University) and informal educational venues (museums, science centers, exhibits). Projects within the portfolio consist of experiments performed onboard the ISS using onboard resources which require no upmass, payloads flown to ISS or integrated into ISS cargo vehicles, and ground based activities that follow or complement onboard activities. Examples include ground based control group experiments, flight or experiment following lesson plans, ground based activities involving direct interaction with ISS or ground based activities considering ISS resources in their solution set. These projects range from totally NASA funded to projects which partner with external entities. These external agencies can be: other federal, state or local government agencies, commercial entities, universities, professional organizations or non-profit organizations. This paper will describe the recent ISS education activities and discuss the approach, outcomes and metrics associated with the projects.

Severance, Mark T.; Tate-Brown, Judy; McArthur, Cynthia L.

2010-01-01

205

Development of a System to Generate Near Real Time Tropospheric Delay and Precipitable Water Vapor in situ at Geodetic GPS Stations, to Improve Forecasting of Severe Weather Events  

NASA Astrophysics Data System (ADS)

We describe a system under development for generating ultra-low latency tropospheric delay and precipitable water vapor (PWV) estimates in situ at a prototype network of geodetic GPS sites in southern California, and demonstrating their utility in forecasting severe storms commonly associated with flooding and debris flow events along the west coast of North America through infusion of this meteorological data at NOAA National Weather Service (NWS) Forecast Offices and the NOAA Earth System Research Laboratory (ESRL). The first continuous geodetic GPS network was established in southern California in the early 1990s and much of it was converted to real-time (latency <1s) high-rate (1Hz) mode over the following decades. GPS stations are multi-purpose and can also provide estimates of tropospheric zenith delays, which can be converted into mm-accuracy PWV using collocated pressure and temperature measurements, the basis for GPS meteorology (Bevis et al. 1992, 1994; Duan et al. 1996) as implemented by NOAA with a nationwide distribution of about 300 GPS-Met stations providing PW estimates at subhourly resolution currently used in operational weather forecasting in the U.S. We improve upon the current paradigm of transmitting large quantities of raw data back to a central facility for processing into higher-order products. By operating semi-autonomously, each station will provide low-latency, high-fidelity and compact data products within the constraints of the narrow communications bandwidth that often occurs in the aftermath of natural disasters. The onsite ambiguity-resolved precise point positioning solutions are enabled by a power-efficient, low-cost, plug-in Geodetic Module for fusion of data from in situ sensors including GPS and a low-cost MEMS meteorological sensor package. The decreased latency (~5 minutes) PW estimates will provide the detailed knowledge of the distribution and magnitude of PW that NWS forecasters require to monitor and predict severe winter storms, landfalling atmospheric rivers, and summer thunderstorms associated with the North American monsoon. On the national level, the ESRL will evaluate the utility of ultra-low resolution GNSS observations to improve NOAA's warning and forecast capabilities. The overall objective is to better forecast, assess, and mitigate natural hazards through the flow of information from multiple geodetic stations to scientists, mission planners, decision makers, and first responders.

Moore, A. W.; Bock, Y.; Geng, J.; Gutman, S. I.; Laber, J. L.; Morris, T.; Offield, D. G.; Small, I.; Squibb, M. B.

2012-12-01

206

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

Federal Register 2010, 2011, 2012, 2013, 2014

...Statement for the Proposed KRoad Moapa Solar Generation Facility, Clark County, NV...Statement (FEIS) for the proposed KRoad Moapa Solar Generation Facility on the Moapa River...SUPPLEMENTARY INFORMATION: KRoad Moapa Solar LLC (KRoad) is proposing to...

2012-03-16

207

Weather Stations: Winds  

NSDL National Science Digital Library

In this activity, learners use a toaster to generate wind and compare the appliance's heat source to Jupiter's own hot interior. Learners discover that convection drives wind on Jupiter and on Earth. 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.

For safety reasons, this activity should be facilitated by an adult or used as a demonstration only.

Lunar and Planetary Institute

2011-01-01

208

Feasibility study of wind-generated electricity for rural applications in southwestern Ohio. Final technical report  

Microsoft Academic Search

This study is designed to investigate the parameters associated with domestic production of wind generated electricity for direct use by small farms and rural homes in the southwestern Ohio region. The project involves direct utility interfaced electricity generation from a horizontal axis, down-wind, fixed pitch, wind powered induction generator system. Goals of the project are to determine: (1) the ability

Kohring

1982-01-01

209

Examination of pits in Trojan nuclear power plant steam generator tubes: Final report  

Microsoft Academic Search

This report presents the results from examination of defects, oxides, and corrosion products on three steam generator tubes removed from the Trojan Nuclear Plant of Portland General Electric. In-generator eddy current inspection of the steam generator tubes suggested the probability of pits in one tube, located several inches above the tubesheet, within the height of the sludge pile. A weak

1989-01-01

210

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

211

[Russian oxygen generation system "Elektron-VM": hydrogen content in electrolytically produced oxygen for breathing by International Space Station crews].  

PubMed

The article presents the particulars of hydrogen content in electrolysis oxygen produced aboard the ISS Russian segment by oxygen generator "Elektron-VM" (SGK) for crew breathing. Hydrogen content was estimated as in the course of SGK operation in the ISS RS, so during the ground life tests. According to the investigation of hydrogen sources, the primary path of H2 appearance in oxygen is its diffusion through the porous diaphragm separating the electrolytic-cell cathode and anode chambers. Effectiveness of hydrogen oxidation in the SGK reheating unit was evaluated. PMID:25035898

Proshkin, V Yu; Kurmazenko, E A

2014-01-01

212

59 FR- Electric Power Generation, Transmission, and Distribution; Electrical Protective Equipment; Final...  

Federal Register 2010, 2011, 2012, 2013, 2014

...trauma victims from analysis; this fact does...Line- Clearance tree-trimming personnel...basis of OSHA's analysis, these final standards...line-clearance tree trimmers, independent...Office of Regulatory Analysis; Eastern Research...Line-clearance tree...

1994-01-31

213

Final report on the design of the MHD generator channel for the high performance demonstration experiment  

Microsoft Academic Search

The MHD generator for the MHD Performance Demonstration Experiment is designed to demonstrate that enthalpy extraction of the order of 16 to 18% at a turbine efficiency greater than 60% is achievable for commercial application. The generator channel is designed to operate with a subsonic flow of seeded combustion products in a 6 Tesla (T) magnetic field and deliver up

1977-01-01

214

Performance evaluation of a pilot-scale permeable reactive barrier at former Naval Air Station Moffett Field, Mountain View, California: Volume 1. Final report, April 1996November 1998  

Microsoft Academic Search

A pilot scale permeable reactive barrier (PRB) or treatment wall demonstration project was initiated by the US Navy EFA West at the former Naval Air Station Moffett Field site in Mountain View, California about 3 years ago. Performance evaluations and cost-benefit analyses were performed by the US Naval Facilities Engineering Service Center (NFESC) and were sponsored by the Department of

C. Reeter; A. Gavaskar; B. Sass; N. Gupta; J. Hicks

1998-01-01

215

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

216

Small-hydroelectric-turbine generating system. Final report, June 30, 1981-December 31, 1982  

SciTech Connect

The historical development of the Pelton waterwheel and the basics of impulse turbines are reviewed. A guide is given for do-it-yourself construction of small hydroelectric plants. Steps to follow in determining the requirements for a do-it-yourself plant are outlined. Final considerations are also given. (DLC)

Kennedy, B.W.

1983-03-15

217

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

Federal Register 2010, 2011, 2012, 2013, 2014

...Generation II military Energizer flashlight, with light-emitting diodes. Based upon the facts presented, CBP has concluded in the...discrete fabricated components (such as resistors, capacitors, diodes, integrated circuits, sockets, and connectors) were...

2013-05-03

218

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

219

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

220

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 resistance resulting in higher cell voltages and a shorter cell life. A microbial challenge test was performed on duplicate single liquid cathode feed electrolyzer 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.

Diderich, Greg S.; Roy, Robert J.; Steele, John W.; Van Keuren, Steven P.; Wilson, Mark E.

2010-01-01

221

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

222

Feasibility study of pipe welding using a homopolar generator. Final report  

Microsoft Academic Search

The technical feasibility was studied of making girth welds of the upset butt resistance type in type 304 stainless steel boiling water reactor pipe using a homopolar generator as the power supply and a preliminary study of the process economics as compared with the present arc welding practice was made. The design and construction of a welding fixture and its

R. E. Keith; W. F. Weldon; H. G. Rylander; H. H. Woodson

1979-01-01

223

Power Station Design  

NASA Technical Reports Server (NTRS)

Kuljian Corporation provides design engineering and construction management services for power generating plants in more than 20 countries. They used WASP (Calculating Water and Steam Properties), a COSMIC program to optimize power station design. This enabled the company to substantially reduce lead time and software cost in a recent design project.

1985-01-01

224

Test facility for advanced electric adjustable frequency drives and generators of typical industrial ratings. Final technical report  

SciTech Connect

A test facility has been developed, for electric adjustable-speed motors and variable-speed generators, that is unique in US universities in terms of its range (5 to 300 hp currently with 0.1 to 1,000 hp final capability) and flexibility (standard NEMA frame and novel geometry machines can be accommodated). The basic facility was constructed with funding from the Electric Power Research Institute. The instrumentation obtained under this DOE grant has been integrated into the facility which was completed in Fall 1997. The facility has already provided useful studies for DOE, EPRI, as well as several West Coast industries and electric energy utilities.

NONE

1997-12-01

225

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

226

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

227

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

228

Microbial Gas Generation Under Expected Waste Isolation Pilot Plant Repository Conditions: Final Report  

SciTech Connect

Gas generation from the microbial degradation of the organic constituents of transuranic (TRU) waste under conditions expected in the Waste Isolation Pilot Plant (WIPP) was investigated. The biodegradation of mixed cellulosic materials and electron-beam irradiated plastic and rubber materials (polyethylene, polyvinylchloride, hypalon, leaded hypalon, and neoprene) was examined. We evaluated the effects of environmental variables such as initial atmosphere (air or nitrogen), water content (humid ({approx}70% relative humidity, RH) and brine inundated), and nutrient amendments (nitogen phosphate, yeast extract, and excess nitrate) on microbial gas generation. Total gas production was determined by pressure measurement and carbon dioxide (CO{sub 2}) and methane (CH{sub 4}) were analyzed by gas chromatography; cellulose degradation products in solution were analyzed by high-performance liquid chromatography. Microbial populations in the samples were determined by direct microscopy and molecular analysis. The results of this work are summarized.

Gillow, J.B.; Francis, A.

2011-07-01

229

Antares prototype 300-kJ, 250-kA Marx generator. Final report  

SciTech Connect

A high-energy, low-inductance, low prefire rate, low trigger jitter, high-voltage, pulsed-power supply was needed to drive the gas discharge in the Antares laser power amplifier. This report describes the design and testing of a Marx generator that meets these requirements, the development and testing of a high-capacity spark gap, and the selection of suitable capacitors and resistors.

Riepe, K.B.; Barrone, L.L.; Bickford, K.J.; Livermore, G.H.

1981-01-01

230

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

Microsoft Academic Search

We present a search for the pair production of first generation scalar leptoquarks (LQ) in data corresponding to an integrated luminosity of 5.4fb-1 collected with the D0 detector at the Fermilab Tevatron Collider in pp collisions at s=1.96TeV. In the channel LQLQ-->eqnueq', where q, q' are u or d quarks, no significant excess of data over background is observed, and

Victor Mukhamedovich Abazov; Braden Keim Abbott; Bannanje Sripath Acharya; Mark Raymond Adams; Todd Adams; Guennadi D. Alexeev; Georgiy D. Alkhazov; Andrew K. Alton; George O. Alverson; Gilvan Augusto Alves; Masato Aoki; M. Arov; A. Askew; B. sman; O. Atramentov; C. Avila; J. Backusmayes; F. Badaud; L. Bagby; B. Baldin; D. V. Bandurin; S. Banerjee; E. Barberis; P. Baringer; J. Barreto; J. F. Bartlett; U. Bassler; V. Bazterra; S. Beale; A. Bean; M. Begalli; M. Begel; C. Belanger-Champagne; L. Bellantoni; S. B. Beri; G. Bernardi; R. Bernhard; I. Bertram; M. Besanon; R. Beuselinck; V. A. Bezzubov; P. C. Bhat; V. Bhatnagar; G. Blazey; S. Blessing; K. Bloom; A. Boehnlein; D. Boline; E. E. Boos; G. Borissov; T. Bose; A. Brandt; O. Brandt; R. Brock; G. Brooijmans; A. Bross; D. Brown; J. Brown; X. B. Bu; M. Buehler; V. Buescher; V. Bunichev; S. Burdin; T. H. Burnett; C. P. Buszello; B. Calpas; E. Camacho-Prez; M. A. Carrasco-Lizarraga; B. C. K. Casey; H. Castilla-Valdez; S. Chakrabarti; D. Chakraborty; K. M. Chan; A. Chandra; G. Chen; S. Chevalier-Thry; D. K. Cho; S. W. Cho; S. Choi; B. Choudhary; S. Cihangir; D. Claes; J. Clutter; M. Cooke; W. E. Cooper; M. Corcoran; F. Couderc; M.-C. Cousinou; A. Croc; D. Cutts; A. Das; G. Davies; K. de; S. J. de Jong; E. de La Cruz-Burelo; F. Dliot; M. Demarteau; R. Demina; D. Denisov; S. P. Denisov; S. Desai; C. Deterre; K. Devaughan; H. T. Diehl; M. Diesburg; P. F. Ding; A. Dominguez; T. Dorland; A. Dubey; L. V. Dudko; D. Duggan; A. Duperrin; S. Dutt; A. Dyshkant; M. Eads; D. Edmunds; J. Ellison; V. D. Elvira; Y. Enari; H. Evans; A. Evdokimov; V. N. Evdokimov; G. Facini; T. Ferbel; F. Fiedler; F. Filthaut; W. Fisher; H. E. Fisk; M. Fortner; H. Fox; S. Fuess; A. Garcia-Bellido; V. Gavrilov; P. Gay; W. Geng; D. Gerbaudo; C. E. Gerber; Y. Gershtein; G. Ginther; G. Golovanov; A. Goussiou; P. D. Grannis; S. Greder; H. Greenlee; Z. D. Greenwood; E. M. Gregores; G. Grenier; Ph. Gris; J.-F. Grivaz; A. Grohsjean; S. Grnendahl; M. W. Grnewald; T. Guillemin; F. Guo; G. Gutierrez; P. Gutierrez; A. Haas; S. Hagopian; J. Haley; L. Han; K. Harder; A. Harel; J. M. Hauptman; J. Hays; T. Head; T. Hebbeker; D. Hedin; H. Hegab; A. P. Heinson; U. Heintz; C. Hensel; I. Heredia-de La Cruz; K. Herner; G. Hesketh; M. D. Hildreth; R. Hirosky; T. Hoang; J. D. Hobbs; B. Hoeneisen; M. Hohlfeld; X. Huang; Z. Hubacek; N. Huske; V. Hynek; I. Iashvili; Y. Ilchenko; R. Illingworth; A. S. Ito; S. Jabeen; M. Jaffr; D. Jamin; A. Jayasinghe; R. Jesik; K. Johns; M. Johnson; D. Johnston; A. Jonckheere; P. Jonsson; J. Joshi; A. W. Jung; A. Juste; K. Kaadze; E. Kajfasz; D. Karmanov; P. A. Kasper; I. Katsanos; R. Kehoe; S. Kermiche; N. Khalatyan; A. Khanov; A. Kharchilava; Y. N. Kharzheev; M. H. Kirby; J. M. Kohli; A. V. Kozelov; J. Kraus; S. Kulikov; A. Kumar; A. Kupco; T. Kurca; V. A. Kuzmin; J. Kvita; S. Lammers; G. Landsberg; P. Lebrun; H. S. Lee; S. W. Lee; W. M. Lee; J. Lellouch; L. Li; Q. Z. Li; S. M. Lietti; J. K. Lim; D. Lincoln; J. Linnemann; V. V. Lipaev; R. Lipton; Y. Liu; Z. Liu; A. Lobodenko; M. Lokajicek; R. Lopes de Sa; H. J. Lubatti; R. Luna-Garcia; A. L. Lyon; A. K. A. Maciel; D. Mackin; R. Madar; R. Magaa-Villalba; S. Malik; V. L. Malyshev; Y. Maravin; J. Martnez-Ortega; R. McCarthy; C. L. McGivern; M. M. Meijer; A. Melnitchouk; D. Menezes; P. G. Mercadante; M. Merkin; A. Meyer; J. Meyer; F. Miconi; N. K. Mondal; G. S. Muanza; M. Mulhearn; E. Nagy; M. Naimuddin; M. Narain; R. Nayyar; H. A. Neal; J. P. Negret; P. Neustroev; S. F. Novaes; T. Nunnemann; G. Obrant; J. Orduna; N. Osman; J. Osta; G. J. Otero Y Garzn; M. Padilla; A. Pal; N. Parashar; V. Parihar; S. K. Park; J. Parsons; R. Partridge; N. Parua; A. Patwa; B. Penning; M. Perfilov; K. Peters; Y. Peters; K. Petridis; G. Petrillo; P. Ptroff; R. Piegaia; M.-A. Pleier; P. L. M. Podesta-Lerma; V. M. Podstavkov; P. Polozov; A. V. Popov; M. Prewitt; D. Price; N. Prokopenko; S. Protopopescu; J. Qian; A. Quadt; B. Quinn; M. S. Rangel; K. Ranjan; P. N. Ratoff; I. Razumov; P. Renkel; M. Rijssenbeek; I. Ripp-Baudot; F. Rizatdinova; M. Rominsky; A. Ross; C. Royon; P. Rubinov; R. Ruchti; G. Safronov; G. Sajot; P. Salcido; A. Snchez-Hernndez; M. P. Sanders; B. Sanghi; A. S. Santos; G. Savage; L. Sawyer; T. Scanlon; R. D. Schamberger; Y. Scheglov; H. Schellman; T. Schliephake; S. Schlobohm; C. Schwanenberger; R. Schwienhorst; J. Sekaric; H. Severini; E. Shabalina; V. Shary; A. A. Shchukin; R. K. Shivpuri; V. Simak; V. Sirotenko; P. Skubic; P. Slattery; D. Smirnov; K. J. Smith; G. R. Snow; J. Snow; S. Snyder; S. Sldner-Rembold; L. Sonnenschein; K. Soustruznik; J. Stark; V. Stolin; D. A. Stoyanova; M. Strauss; D. Strom; L. Stutte; L. Suter; P. Svoisky; M. Takahashi; A. Tanasijczuk; W. Taylor; M. Titov; V. V. Tokmenin; Y.-T. Tsai; D. Tsybychev; B. Tuchming; C. Tully; L. Uvarov

2011-01-01

231

Advanced Stirling Radioisotope Generator Engineering Unit 2 (ASRG EU2) Final Assembly  

NASA Technical Reports Server (NTRS)

NASA Glenn Research Center (GRC) has recently completed the assembly of a unique Stirling generator test article for laboratory experimentation. Under the Advanced Stirling Radioisotope Generator (ASRG) flight development contract, NASA GRC initiated a task to design and fabricate a flight-like generator for in-house testing. This test article was given the name ASRG Engineering Unit 2 (EU2) as it was effectively the second engineering unit to be built within the ASRG project. The intent of the test article was to duplicate Lockheed Martin's qualification unit ASRG design as much as possible to enable system-level tests not previously possible at GRC. After the cancellation of the ASRG flight development project, the decision was made to continue the EU2 build, and make use of a portion of the hardware from the flight development project. GRC and Lockheed Martin engineers collaborated to develop assembly procedures, leveraging the valuable knowledge gathered by Lockheed Martin during the ASRG development contract. The ASRG EU2 was then assembled per these procedures at GRC with Lockheed Martin engineers on site. The assembly was completed in August 2014. This paper details the components that were used for the assembly, and the assembly process itself.

Oriti, Salvatore M.

2015-01-01

232

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

233

Solar power station  

SciTech Connect

Solar power station with semiconductor solar cells for generating electric power is described, wherein the semiconductor solar cells are provided on a member such as a balloon or a kite which carries the solar cells into the air. The function of the balloon or kite can also be fulfilled by a glider or airship. The solar power station can be operated by allowing the system to ascend at sunrise and descend at sunset or when the wind is going to be too strong in order to avoid any demage.

Wenzel, J.

1982-11-30

234

Development, Demonstration, and Field Testing of Enterprise-Wide Distributed Generation Energy Management System: Final Report  

SciTech Connect

This report details progress on subcontract NAD-1-30605-1 between the National Renewable Energy Laboratory and RealEnergy (RE), the purpose of which is to describe RE's approach to the challenges it faces in the implementation of a nationwide fleet of clean cogeneration systems to serve contemporary energy markets. The Phase 2 report covers: utility tariff risk and its impact on market development; the effect on incentives on distributed energy markets; the regulatory effectiveness of interconnection in California; a survey of practical field interconnection issues; trend analysis for on-site generation; performance of dispatch systems; and information design hierarchy for combined heat and power.

Greenberg, S.; Cooley, C.

2005-01-01

235

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

236

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

DOE PAGESBeta

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

237

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

238

Nonproprietary corrosion inhibitors for solvents to clean steam generators. Final report  

SciTech Connect

The Steam Generator Owners Group, in association with EPRI, sponsored development work at Petrolite Corporation to develop a corrosion inhibitor for chemical-cleaning solvents to clean PWR nuclear steam generators. As a result of this work, a nonproprietary corrosion inhibitor, CCI-801, was selected and qualified in numerous laboratory demonstration tests. Companion projects dealing with the development of the cleaning process were carried out at The Babcock and Wilcox Company (RPS127-1); UNC Nuclear Industries, Inc. (RPS150-1); and Combustion Engineering, Inc. (RPS128-1). The development of inhibitors for chemical-cleaning fluids of necessity dealt with the chemistry of the inhibitors, the solution chemistry, the corrosion mechanism, the metallurgy of the metals to be protected, the system parameters such as the nature of galvanic coupling, and the techniques to monitor corrosion. Studies concerning these subjects are described in this report. It is concluded that CCI-801 is an effective inhibitor which protects all metals tested under all process conditions envisaged, with no perceived detrimental aftereffects.

Annand, R.R.; Hausler, R.H.

1983-06-01

239

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

240

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

241

Electric-Generation-Expansion Analysis System. Volume 5. Validation manual. Final report  

SciTech Connect

EGEAS, a modular state-of-the-art capacity expansion software package, contains five capacity expansion analysis options ranging from preliminary analysis tools based on screening curves and linear programming to sophisticated nonlinear analysis tools utilizing a Generalized Benders' Decomposition algorithm and a Dynamic Programming algorithm. A stand-alone, detailed probabilistic production costing algorithm is also available. The development and implementation of a efficient probabilistic production costing algorithm made possible the addition to EGEAS of a number of advanced features: maintenance scheduling, economy interchange and reserve sharing, storage and limited energy unit modeling as well as Non-Dispatchable Generation and Load Management analysis. Sensitivity, uncertainty and trade-off analyses are also available in EGEAS. The structure and capabilities of EGEAS as well as the results of a testing and validation effort exercise are presented in Volume 1. Volume 2 includes mathematical appendices and a detailed description of the three generating systems used for testing and validating EGEAS. Volume 3 is the User's Manual, Volume 4 the Programmer's Manual, Volume 5 the Validation Manual, and Volume 6 is the Installation Manual.

Fleck, W.D.; Charny, L.

1983-05-01

242

Space Station reference configuration description  

NASA Technical Reports Server (NTRS)

The data generated by the Space Station Program Skunk Works over a period of 4 months which supports the definition of a Space Station reference configuration is documented. The data were generated to meet these objectives: (1) provide a focal point for the definition and assessment of program requirements; (2) establish a basis for estimating program cost; and (3) define a reference configuration in sufficient detail to allow its inclusion in the definition phase Request for Proposal (RFP).

1984-01-01

243

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

244

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

245

Electric-generation expansion-analysis system. Volume 3. Computer program user's manual. Final report  

SciTech Connect

EGEAS is a modular state-of-the-art capacity expansion software package. It contains five capacity expansion analysis options ranging from preliminary analysis tools based on screening curves and linear programming to sophisticated non-linear analysis tools utilizing a Generalized Benders' Decomposition algorithm and a Dynamic Programming algorithm. A stand alone, detailed probabilistic production costing algorithm is also available for prespecified expansion plan production cost and reliability analysis. The multiple EGEAS analysis options are incorporated into a single control analysis program allowing users to match the analysis options selected to a particular problem's requirements and complexity. At the same time, the implementation of a flexible modular and extendable data base common to all five analysis options simplifies data input and maintenance, and rules out input-related inconsistencies among the analysis options. The development and implementation of a detailed but nevertheless efficient probabilistic production costing algorithm made possible the addition to EGEAS of a number of advanced features. These features include maintenance scheduling, economy interchange and reserve sharing, storage and limited energy unit modeling as well as Non-Dispatchable Generation and Load Management analysis. Sensitivity, uncertainty and trade-off analyses are also available in EGEAS. The structure and capabilities of EGEAS as well as the results of a testing and validation effort exercise are presented in Volume 1. Volume 2 includes mathematical appendices and a detailed description of the three generating systems used for testing and validating EGEAS. Volume 3 is the User's Manual, Volume 4 the Programmer's Manual, Volume 5 the Validation Manual, and Volume 6 is the Installation Manual.

Fleck, W.; Charny, L.

1983-03-01

246

Electric Generation Expansion Analysis System. Volume 6. Installation manual. Final report  

SciTech Connect

EGEAS is a modular state-of-the-art capacity expansion software package. It contains five capacity expansion analysis options ranging from preliminary analysis tools based on screening curves and linear programming to sophisticated nonlinear analysis tools utilizing a Generalized Benders' Decomposition algorithm and a Dynamic Programming algorithm. A stand alone, detailed probabilistic production costing algorithm is also available for prespecified expansion plan production cost and reliability analysis. The multiple EGEAS analysis options are incorporated into a single control analysis program allowing users to match the analysis option selected to a particular problem's requirements and complexity. At the same time, the implementation of a flexible modular and extendable data base common to all five analysis options simplifies data input and maintenance, and rules out input-related inconsistencies among the analysis options. The development and implementation of a detailed but nevertheless efficient probabilistic production costing algorithm made possible the addition to EGEAS of a number of advanced features. These features include maintenance scheduling, economy interchange and reserve sharing, storage and limited energy unit modeling as well as Non-Dispatchable Generation and Load Management analysis. Sensitivity, uncertainty and trade-off analyses are also available in EGEAS. The structure and capabilities of EGEAS as well as the results of a testing and validation effort exercise are presented in Volume 1. Volume 2 includes mathematical appendices and a detailed description of the three generating systems used for testing and validating EGEAS. Volume 3 is the User's Manual, Volume 4 the Programmer's Manual, Volume 5 the Validation Manual, and Volume 6 is the Installation Manual.

Fleck, W.D.; Charny, L.

1984-03-01

247

Baseline and verification tests of the electric vehicle associates' current fare station wagon. Final test report, March 27, 1980-November 6, 1981  

SciTech Connect

The EVA Current Fare Wagon was manufactured by Electric Vehicle Associates, Incorporated (EVA) of Cleveland, Ohio. It is now available from Lectra Motors Corp. of Las Vegas, Nevada. The vehicle was tested under the direction of MERADCOM from 27 March 1980 to 6 November 1981. The tests are part of a Department of Energy project to assess advances in electric vehicle design. This report presents the performance test results on the EVA Current Fare Wagon. The EVA Current Fare Wagon is a 1980 Ford Fairmont station wagon which has been converted to an electric vehicle. The propulsion system is made up of a Cableform controller, a series-wound 30-hp Reliance Electric Motor, and 22 6-V lead-acid batteries. The Current Fare Wagon is also equipped with regenerative braking. Further details of the vehicle are given in the Vehicle Summary Data Sheet, Appendix A. The results of this testing are given in Table 1.

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

1983-01-01

248

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

249

Final environmental impact statement. Management of commercially generated radioactive waste. Volume 2. Appendices  

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 appendices of supplementary data on waste management systems, geologic disposal, radiological standards, radiation dose calculation models, related health effects, baseline ecology, socio-economic conditions, hazard indices, comparison of defense and commercial wastes, design considerations, and wastes from thorium-based fuel cycle alternatives. (DMC)

Not Available

1980-10-01

250

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

251

Electric-generation expansion analysis system. Volume 4. Programmer's manual. Final report  

SciTech Connect

EGEAS is a modular state-of-the-art capacity expansion software package. It contains five capacity expansion analysis options ranging from preliminary analysis tools based on screening curves and linear programming to sophisticated non-linear analysis tools utilizing a Generalizd Benders' Decomposition algorithm and a Dynamic Programming algorithm. A stand alone, detailed probabilistic production costing algorithm is also available for prespecified expansion plan production cost and reliability analysis. The multiple EGEAS analysis options are incorporated into a single control analysis program allowing users to match the analysis option selected to a particular problem's requirements and complexity. At the same time, the implementation of a flexible modular and extendable data base common to all five analysis options simplifies data input and maintenance, and rules out input-related inconsistencies among the analysis options. The development and implementation of a detailed but nevertheless efficient probabilistic production costing algorithm made possible the addition to EGEAS of a number of advanced features. These features include maintenance scheduling, economy interchange and reserve sharing, storage and limited energy unit modeling as well as Non-Dispatchable Generation and Load Management analysis. Sensitivity, uncertainty and trade-off analyses are also available in EGEAS.

Fleck, W.D.; Charny, L.

1983-05-01

252

ILRS Station Reporting  

NASA Technical Reports Server (NTRS)

Network stations provided system configuration documentation upon joining the ILRS. This information, found in the various site and system log files available on the ILRS website, is essential to the ILRS analysis centers, combination centers, and general user community. Therefore, it is imperative that the station personnel inform the ILRS community in a timely fashion when changes to the system occur. This poster provides some information about the various documentation that must be maintained. The ILRS network consists of over fifty global sites actively ranging to over sixty satellites as well as five lunar reflectors. Information about these stations are available on the ILRS website (http://ilrs.gsfc.nasa.gov/network/stations/index.html). The ILRS Analysis Centers must have current information about the stations and their system configuration in order to use their data in generation of derived products. However, not all information available on the ILRS website is as up-to-date as necessary for correct analysis of their data.

Noll, Carey E.; Pearlman, Michael Reisman; Torrence, Mark H.

2013-01-01

253

Final environmental impact statement. Management of commercially generated radioactive waste. Volume 1 of 3  

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 EIS reflects the public review of and comments offered on the draft statement. Included are descriptions of the characteristics of nuclear waste, the alternative disposal methods under consideration, and potential environmental impacts and costs of implementing these methods. Because of the programmatic nature of this document and the preliminary nature of certain design elements assumed in assessing the environmental consequences of the various alternatives, this study has been based on generic, rather than specific, systems. At such time as specific facilities are identified for particular sites, statements addressing site-specific aspects will be prepared for public review and comment.

Not Available

1980-10-01

254

Final LDRD report : advanced materials for next generation high-efficiency thermochemistry.  

SciTech Connect

Despite rapid progress, solar thermochemistry remains high risk; improvements in both active materials and reactor systems are needed. This claim is supported by studies conducted both prior to and as part of this project. Materials offer a particular large opportunity space as, until recently, very little effort apart from basic thermodynamic analysis was extended towards understanding this most fundamental component of a metal oxide thermochemical cycle. Without this knowledge, system design was hampered, but more importantly, advances in these crucial materials were rare and resulted more from intuition rather than detailed insight. As a result, only two basic families of potentially viable solid materials have been widely considered, each of which has significant challenges. Recent efforts towards applying an increased level of scientific rigor to the study of thermochemical materials have provided a much needed framework and insights toward developing the next generation of highly improved thermochemically active materials. The primary goal of this project was to apply this hard-won knowledge to rapidly advance the field of thermochemistry to produce a material within 2 years that is capable of yielding CO from CO2 at a 12.5 % reactor efficiency. Three principal approaches spanning a range of risk and potential rewards were pursued: modification of known materials, structuring known materials, and identifying/developing new materials for the application. A newly developed best-of-class material produces more fuel (9x more H2, 6x more CO) under milder conditions than the previous state of the art. Analyses of thermochemical reactor and system efficiencies and economics were performed and a new hybrid concept was reported. The larger case for solar fuels was also further refined and documented.

Ambrosini, Andrea; Miller, James Edward; Allendorf, Mark D. [Sandia National Laboratories, Livermore, CA; Coker, Eric Nicholas; Ermanoski, Ivan; Hogan, Roy E.,; McDaniel, Anthony H. [Sandia National Laboratories, Livermore, CA

2014-01-01

255

Hydrogen generation by metal corrosion in simulated Waste Isolation Pilot Plant environments. Final report  

SciTech Connect

The corrosion and gas-generation characteristics of four material types: low-carbon steel (the current waste packaging material for the Waste Isolation Pilot Plant), Cu-base and Ti-base (alternative packaging) materials, and Al-base (simulated waste) materials were determined in both the liquid and vapor phase of Brine A, a brine representative of an intergranular Salado Formation brine. Test environments consisted primarily of anoxic brine with overpressures of N{sub 2}, CO{sub 2}, H{sub 2}S, and H{sub 2}. Limited tests of low-carbon steel were also performed in simulated-backfill environments and in brine environments with pH values ranging from 3 to 11. Low-carbon steel reacted at a slow, measurable rate with anoxic brine, liberating H{sub 2} on an equimolar basis with Fe reacted. Presence of CO{sub 2} caused the initial reaction to proceed more rapidly, but CO{sub 2}-induced passivation stopped the reaction if the CO{sub 2} were present in sufficient quantities. Addition of H{sub 2}S to a CO{sub 2}-passivated system caused reversal of the passivation. Low-carbon steel immersed in brine with H{sub 2}S showed no reaction, apparently because of passivation of the steel by formation of FeS. Addition of CO{sub 2} to an H{sub 2}S-passivated system did not reverse the passivation. Cu- and Ti-base materials showed essentially no corrosion when exposed to brine and overpressures of N{sub 2}, CO{sub 2}, and H{sub 2}S except for the rapid and complete reaction between Cu-base materials and H{sub 2}S. The Al-base materials reacted at approximately the same rate as low-carbon steel when immersed in anoxic Brine A; considerably more rapidly in the presence of CO{sub 2} or H{sub 2}S; and much more rapidly when iron was present in the system as a brine contaminant. High-purity Al was much more susceptible to corrosion than the 6061 alloy. No significant reaction took place on any material in any environment in the vapor-phase exposures.

Telander, M.R.; Westerman, R.E. [Battelle Pacific Northwest Lab., Richland, WA (United States)

1997-03-01

256

Language Learning Stations.  

ERIC Educational Resources Information Center

Describes use of learning stations at elementary and secondary levels. Explains vocabulary, grammar, conversation, listening, reading and culture stations; materials and equipment for stations; management concerns. (BK)

Strauber, Sandra K.

1981-01-01

257

Performance evaluation of a pilot-scale permeable reactive barrier at former Naval Air Station Moffett Field, Mountain View, California: Volume 1. Final report, April 1996--November 1998  

SciTech Connect

A pilot scale permeable reactive barrier (PRB) or treatment wall demonstration project was initiated by the US Navy EFA West at the former Naval Air Station Moffett Field site in Mountain View, California about 3 years ago. Performance evaluations and cost-benefit analyses were performed by the US Naval Facilities Engineering Service Center (NFESC) and were sponsored by the Department of Defense (DoD) Environmental Security Technology Certification Program (ESTCP). The Moffett Field PRB uses a funnel-and-gate design, where the funnel is made of interlocking steel sheet piles and the gate consists of a reactive cell filled with zero-valent granular iron. Since its construction in April 1996, groundwater monitoring was conducted on a quarterly basis to demonstrate the effectiveness of the barrier technology in capturing and remediating groundwater that contained dissolved chlorinated hydrocarbon compounds. The primary contaminants of concern at Moffett Field in the vicinity of the PRB are trichloroethene, cis-1,2 dichloroethene, and perchloroethene at upgradient concentrations of about 2900 micrograms per liter, 280 micrograms/L, and 26 microgram/L, respectively. Quarterly monitoring events included water level measurements, field parameter testing, and groundwater sampling at about 75 monitoring points. Two tracer tests using bromide solutions and flow meter testing were also completed in April and August 1997 at the site. Iron cell coring samples were collected and analyzed in December 1997 for use as indicators of reactivity and longevity. Data from the quarterly monitoring, tracer testing, and iron cell coring have been used to determine the overall barrier performance. Since the first sampling event in June 1996, concentrations of all chlorinated compounds were either reduced to non-detect or to below the drinking water maximum contaminant levels within the first 2-3 feet of the permeable iron cell.

Reeter, C.; Gavaskar, A.; Sass, B.; Gupta, N.; Hicks, J.

1998-11-01

258

Sky Station  

NSDL National Science Digital Library

While satellites are the current backbone of telecommunications and wireless infrastructure, the company that maintains this Web site envisions a completely new technology. The Stratospheric Telecommunications Service (STS) relies on "lighter-than-air platforms which are held in a geo-stationary position in the stratosphere (approximately 21Km) over a major metropolitan area." The Sky Station company documents much of the STS theory online, as well as maintaining news and information articles about the progress of the system's development. US and international organizations have already reserved some of the radio frequency spectrum for stratospheric platforms, and it seems to have considerable support from important agencies.

259

An automated deep space communications station  

Microsoft Academic Search

This paper describes an architecture being implemented for an autonomous Deep Space Tracking Station(DS-T). The architecture targets fully automated routine operations encompassing scheduling and resource allocation, antenna and receiver predict generation, track procedure generation from service requests, and closed loop control and error recovery for the station subsystems. This architecture is being validated by construction of a prototype DS-T station

Forest Fisher; Steve Chien; Leslie Paal; E. Law; N. Golshan; Mike Stockett

1998-01-01

260

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

261

Chief Joseph Kokanee Enhancement Project; Characterization of Pump Flow at the Grand Coulee Dam Pumping Station for Fish Passage, 2004-2005 Final Report.  

SciTech Connect

This report describes a study conducted by Pacific Northwest National Laboratory (PNNL) for the Bonneville Power Administration to characterize the conditions fish experience when entrained in pump flow at the Grand Coulee Dam. PNNL conducted field studies at Grand Coulee Dam in 2004 using the Sensor Fish to measure the acceleration and pressure conditions that might be experienced by fish that pass through pumps at Grand Coulee Dam's Pump-Generating Plant and are transported up into the feeder canal leading to Banks Lake. The probability that fish would be struck by the Pump-Generating Plant's new nine-bladed turbines was also estimated. Our measurements showed relatively low turbulence except in the immediate vicinity of the runner environment. The lowest and highest pressures experienced by the Sensor Fish were 6.4 and 155 psi (the pressure gauge saturated at 155 psi). The probability of strike was also calculated, based on the average length of hatchery-reared juvenile kokanee (land-locked sockeye). Strike probabilities ranged from 0.0755 for 2.36-inch fish to 0.3890 for 11.8-inch fish. The probability of strike estimates indicate that the majority (77%) of recently released hatchery kokanee would be carried through the test pump without being struck and most likely with low risk of injury resulting from pressure and turbulence exposure. Of the 23% that might be struck it is expected that 60% would arrive in Banks Lake without visible external injuries. Thus more than 90% of entrained fish could be expected to arrive in Banks Lake without significant injury, assuming that no kokanee were injured or killed by pressure exposure during passage.

Carlson, T.; Duncan, J.; Johnson, R.

2005-03-01

262

Second generation timing system for ranging experiment Apollo lunar laser. [analysis of systems and components for Lunar Laser Ranging station in Hawaii  

NASA Technical Reports Server (NTRS)

The status of the timing electronics for the lunar laser ranging station in Hawaii is discussed. The aim of the experiment is to measure, with high accuracy, the distance from a fixed point on earth to a retroreflector array which was placed on the lunar surface. The operating procedure for conducting the experiment is described. The components of the system are analyzed to show the effectiveness and accuracy of the facility.

Currie, D. G.; Steggerda, C.; Rayner, J.; Buennagel, A.

1972-01-01

263

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 ...

264

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

265

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

266

Space Station propulsion system  

NASA Technical Reports Server (NTRS)

Viewgraphs on space station propulsion systems are presented. Topics covered include: space station propulsion system requirements; space station propulsion system design; space station propulsion system drivers; hydrazine technology development; waste fluid disposal system; space station propulsion system evolution; propellant selection trade study; technology needs to water electrolysis/oxygen-hydrogen propulsion system; and technology needs for bipropellant systems.

Henderson, J.

1990-01-01

267

Space station ventilation study  

NASA Technical Reports Server (NTRS)

A ventilation system design and selection method which is applicable to any manned vehicle were developed. The method was used to generate design options for the NASA 33-foot diameter space station, all of which meet the ventilation system design requirements. System characteristics such as weight, volume, and power were normalized to dollar costs for each option. Total system costs for the various options ranged from a worst case $8 million to a group of four which were all approximately $2 million. A system design was then chosen from the $2 million group and is presented in detail. A ventilation system layout was designed for the MSFC space station mockup which provided comfortable, efficient ventilation of the mockup. A conditioned air distribution system design for the 14-foot diameter modular space station, using the same techniques, is also presented. The tradeoff study resulted in the selection of a system which costs $1.9 million, as compared to the alternate configuration which would have cost $2.6 million.

Colombo, G. V.; Allen, G. E.

1972-01-01

268

Engineering evaluation and analysis for the improvement of military standard generators. Volume 2. Final report, 24 February-29 May 1987  

SciTech Connect

Contents include: noise kits for 15- and 30-kW generator sets; Mil-Std generator set towed assemblage; electromagnetic pulse (EMP) analysis on the electromagnetic control system of the Mep-114A 30-kW DED generator set; technical data sheet - solar electric-battery charger; technical data sheet - diesel fuel heater/water separator; Patriot fuel-waxing study of the 15- and 30-kW Mil-Std generator sets; Photos-Regency net (modified 15 kW) sound suppressed generator set towed assemblage; battery charger for EMU-30 generator set.

Adolph, R.J.; Lawrence, L.G.; Perkins, G.W.; Thorwaldson, E.

1987-05-29

269

Intelligent Virtual Station (IVS)  

NASA Technical Reports Server (NTRS)

The Intelligent Virtual Station (IVS) is enabling the integration of design, training, and operations capabilities into an intelligent virtual station for the International Space Station (ISS). A viewgraph of the IVS Remote Server is presented.

2002-01-01

270

The Stability of Pretest Statistics Generated from College Samples as a Measure for Predicting Final Form Statistics for Achievement Tests.  

ERIC Educational Resources Information Center

How accurately deltas (statistics measuring the difficulty of items) established by pre-test populations reflect deltas obtained from final form populations, and the consequent utility of pre-test deltas for constructing final (operational test) forms to meet developed statistical specifications were studied. Data were examined from five subject

Ervin, Nancy S.

271

Engineering evaluation and analysis for the improvement of military standard generators. Volume 2. Final report, 24 February29 May 1987  

Microsoft Academic Search

Contents include: noise kits for 15- and 30-kW generator sets; Mil-Std generator set towed assemblage; electromagnetic pulse (EMP) analysis on the electromagnetic control system of the Mep-114A 30-kW DED generator set; technical data sheet - solar electric-battery charger; technical data sheet - diesel fuel heater\\/water separator; Patriot fuel-waxing study of the 15- and 30-kW Mil-Std generator sets; Photos-Regency net (modified

R. J. Adolph; L. G. Lawrence; G. W. Perkins; E. Thorwaldson

1987-01-01

272

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

273

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

274

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

275

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

276

Exergy analysis of high pressure processes in compressor station -- Losses and recovery potentials  

SciTech Connect

The paper presents results of the exergy and energy analyses of the following processes at a compressor station in NGTL's high-pressure natural gas transmission system: combustion and power generation in the compressor driver/gas generator; processes of heat transfer, throttling and mixing in the station auxiliary systems which prepare fuel, utility gas and compressed air for station use; and, finally, natural gas compression and cooling in the main station yard. Actual field data was used to evaluate process quality, efficiency and losses. The results showed that an energy analysis alone was not sufficient to provide a realistic process assessment for real gases under high pressure conditions. The analysis did not account for losses due to process irreversibility, gave poor indication of the usefulness of rejected resources, estimated heat fluxes without indicating heat source quality, and degraded value of gas pressure. Applied to the Gadsby Compressor Station, the energy analysis did not show the actual potential of exhaust gases suitable for recovery, neglected importance of the combustion process and deterioration of combustion quality in off-design conditions. It detected no losses in the station auxiliary systems and no energy deterioration during gas throttling. The energy balance misrepresented compression as a process consuming the driving power to raise gas temperature.

Petela, G.; Richards, D.; Szuch, G.

1999-07-01

277

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

278

International Space Station power storage upgrade planned  

Microsoft Academic Search

As the Earth-orbit International Space Station (ISS) grows, it needs more power which is generated by solar panels. For periods in which the planet Earth occults sunlight, energy is stored in the biggest set of batteries ever flown in space. Reliability of power is important in a space station because a failure requires costly launch of replacement components. Even greater

H. Oman

2003-01-01

279

M Station, Austin  

E-print Network

$100 $150 $200 $250 $300 ID LL SS WE EA MR EQ AE LEED Platinum (Standard) 90 ID LL SS WE EA MR EQ AE LEED Platinum (Standard) LEED Platinum (M Station) 9081 ID LL SS WE EA MR EQ AE LEED Platinum (Standard) LEED Platinum (M Station) M... Station 9081 108 ID LL SS WE EA MR EQ AE LEED Platinum (Standard) LEED Platinum (M Station) M Station 9081 10849 $0.00/sf Planning ID LL SS WE EA MR EQ AE LEED Platinum (Standard) LEED Platinum (M Station) M Station 9081 10849 $0.00/sf...

Mathon, S.

2011-01-01

280

Space Station Spartan study  

NASA Technical Reports Server (NTRS)

The required extension, enhancement, and upgrading of the present Spartan concept are described to conduct operations from the space station using the station's unique facilities and operational features. The space station Spartan (3S), the free flyer will be deployed from and returned to the space station and will conduct scientific missions of much longer duration than possible with the current Spartan. The potential benefits of a space station Spartan are enumerated. The objectives of the study are: (1) to develop a credible concept for a space station Spartan; and (2) to determine the associated requirements and interfaces with the space station to help ensure that the 3S can be properly accommodated.

Lane, J. H.; Schulman, J. R.; Neupert, W. M.

1985-01-01

281

Source development for an array to generate underwater rectangular pulses. Final report 1 oct 77-30 apr 78  

Microsoft Academic Search

SRI International is assisting the Defense Nuclear Agency (DNA) and the Underwater Explosion Research Division (UERD) in developing a technique for generating a plane wave in water to simulate the pulse generated by an underwater nuclear explosion. The technique is being developed to improve the current method of loading submarine sections in which the energy source is concentrated as a

A. L. Florence; C. M. Romander

1978-01-01

282

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

283

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

284

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

285

Western Fuels serves consumer-owned utility generating stations: non-profit coal company has public and co-op system members in 18 states  

Microsoft Academic Search

Despite transport, handling, and environmental problems, coal is increasingly the fuel used to generate electricity and is the unquestionably most abundant proven domestic fuel source. To meet the post-oil embargo challenge of providing reliable fuel supplies, a non-profit coal company was formed from 22 consumer-owned utilities, with more planning to join. The cooperative, Western Fuels, spent five years in palnning

Beaty

1979-01-01

286

Draper Station Analysis Tool  

NASA Technical Reports Server (NTRS)

Draper Station Analysis Tool (DSAT) is a computer program, built on commercially available software, for simulating and analyzing complex dynamic systems. Heretofore used in designing and verifying guidance, navigation, and control systems of the International Space Station, DSAT has a modular architecture that lends itself to modification for application to spacecraft or terrestrial systems. DSAT consists of user-interface, data-structures, simulation-generation, analysis, plotting, documentation, and help components. DSAT automates the construction of simulations and the process of analysis. DSAT provides a graphical user interface (GUI), plus a Web-enabled interface, similar to the GUI, that enables a remotely located user to gain access to the full capabilities of DSAT via the Internet and Webbrowser software. Data structures are used to define the GUI, the Web-enabled interface, simulations, and analyses. Three data structures define the type of analysis to be performed: closed-loop simulation, frequency response, and/or stability margins. DSAT can be executed on almost any workstation, desktop, or laptop computer. DSAT provides better than an order of magnitude improvement in cost, schedule, and risk assessment for simulation based design and verification of complex dynamic systems.

Bedrossian, Nazareth; Jang, Jiann-Woei; McCants, Edward; Omohundro, Zachary; Ring, Tom; Templeton, Jeremy; Zoss, Jeremy; Wallace, Jonathan; Ziegler, Philip

2011-01-01

287

Limited energy study, postwide share generation/peak shaving generation plant. Energy Engineering Analysis Program (EEAP) Fort Lee, Virginia. Volume 1. Final report  

SciTech Connect

Systems Engineering and Management Corporation (Systems Corp) surveyed and completed energy analyses for five (5) options for a Share Generation/Peak Shaving Generation plant at Fort Lee, Virginia. The cost estimates for the study were prepared using MeansData for Windows Spreadsheets, Version 2.0a. Life cycle cost analyses were performed using the Life Cycle Cost in Design (LCCID) computer program, Version 1.0 Level 92. Project development brochures (PDBs) and DD1391 forms were prepared for the Energy Conservation Project (ECIP) developed. The project developed represents $1,074,275 in first year savings with a simple payback of 4.10 years and a savings to investment ratio (SIR) of 3.41.

NONE

1994-12-22

288

Space Station Freedom as an engineering experiment station: An overview  

NASA Astrophysics Data System (ADS)

In this presentation, the premise that Space Station Freedom has great utility as an engineering experiment station will be explored. There are several modes in which it can be used for this purpose. The most obvious are space qualification, process development, in space satellite repair, and materials engineering. The range of engineering experiments which can be done at Space Station Freedom run the gamut from small process oriented experiments to full exploratory development models. A sampling of typical engineering experiments are discussed in this session. First and foremost, Space Station Freedom is an elaborate experiment itself, which, if properly instrumented, will provide engineering guidelines for even larger structures which must surely be built if humankind is truly 'outward bound.' Secondly, there is the test, evaluation and space qualification of advanced electric thruster concepts, advanced power technology and protective coatings which must of necessity be tested in the vacuum of space. The current approach to testing these technologies is to do exhaustive laboratory simulation followed by shuttle or unmanned flights. Third, the advanced development models of life support systems intended for future space stations, manned mars missions, and lunar colonies can be tested for operation in a low gravity environment. Fourth, it will be necessary to develop new protective coatings, establish construction techniques, evaluate new materials to be used in the upgrading and repair of Space Station Freedom. Finally, the industrial sector, if it is ever to build facilities for the production of commercial products, must have all the engineering aspects of the process evaluated in space prior to a commitment to such a facility.

Rose, M. Frank

289

Space Station Freedom as an engineering experiment station: An overview  

NASA Technical Reports Server (NTRS)

In this presentation, the premise that Space Station Freedom has great utility as an engineering experiment station will be explored. There are several modes in which it can be used for this purpose. The most obvious are space qualification, process development, in space satellite repair, and materials engineering. The range of engineering experiments which can be done at Space Station Freedom run the gamut from small process oriented experiments to full exploratory development models. A sampling of typical engineering experiments are discussed in this session. First and foremost, Space Station Freedom is an elaborate experiment itself, which, if properly instrumented, will provide engineering guidelines for even larger structures which must surely be built if humankind is truly 'outward bound.' Secondly, there is the test, evaluation and space qualification of advanced electric thruster concepts, advanced power technology and protective coatings which must of necessity be tested in the vacuum of space. The current approach to testing these technologies is to do exhaustive laboratory simulation followed by shuttle or unmanned flights. Third, the advanced development models of life support systems intended for future space stations, manned mars missions, and lunar colonies can be tested for operation in a low gravity environment. Fourth, it will be necessary to develop new protective coatings, establish construction techniques, evaluate new materials to be used in the upgrading and repair of Space Station Freedom. Finally, the industrial sector, if it is ever to build facilities for the production of commercial products, must have all the engineering aspects of the process evaluated in space prior to a commitment to such a facility.

Rose, M. Frank

1992-01-01

290

Development of a low-cost peak-shaving generator set. Final report, October 1987-June 1989  

SciTech Connect

The report summarizes the findings of the project team, who researched the market potential and requirements for a low cost natural gas fueled peak shaving generator set, and tested an automotive derivative engine for durability and performance. Because some electric utilities assess their customers a significant demand charge to offset the capital investment needed to meet peak energy consumption, the use of on-site generator sets fueled by relatively inexpensive natural gas to reduce the customer's peak energy consumption may result in significant cost savings for the customer. A market research survey was used to ascertain the current market and equipment requirements, and to forecast the market potential for a low installed cost ($200/kW) peak shaving generator set. Testing was conducted on several configurations of a Ford automotive-derivative engine to determine if appropriate performance and durability goals for the application could be met.

Iverson, J.R.

1989-12-01

291

International Space Station Alpha electric power system performance degradation  

Microsoft Academic Search

Performance of the International Space Station Alpha (ISSA) United States On-Orbit Segment (USOS) Electric Power System (EPS) will be degraded through the mission life of the station. The power generation photovoltaic array and thermal control radiator will be directly exposed to the natural environment and the environment induced after the station is built. These environmental effects result in lower array

Cheng-Yi Lu; Lisa Hague; Vidya Padhye; Robert Hill

1995-01-01

292

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

293

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

294

Live from Space Station Learning Technologies Project  

NASA Technical Reports Server (NTRS)

This is the Final Report for the Live From Space Station (LFSS) project under the Learning Technologies Project FY 2001 of the MSFC Education Programs Department. AZ Technology, Inc. (AZTek) has developed and implemented science education software tools to support tasks under the LTP program. Initial audience consisted of 26 TreK in the Classroom schools and thousands of museum visitors to the International Space Station: The Earth Tour exhibit sponsored by Discovery Place museum.

2001-01-01

295

Feasibility of generating electricity in the State of Vermont using wood as a fuel: a study. Final report, August 1975  

Microsoft Academic Search

On the basis of a feasibility study that included a consideration of the biology and ecology of wood production, wood procurement and its economics, and electrical generating technology, it was concluded that the use of wood as fuel in Vermont merits additional research although the concept is not yet economically competitive. The construction of a pilot plant is strongly recommended

J. P. Rich; P. H. Bauer

1976-01-01

296

Experimental studies of explosively-driven magnetohydrodynamic generators. Final report, 1 October 1994--31 October 1997  

SciTech Connect

The field of High Power Microwaves (HPM) has evolved as a result of advances in the field of pulsed power, which has made pulses of electrical energy available that can drive HPM sources to gigawatt levels. One of the most compact forms of pulsed power involves the storage of chemical energy in the form of explosive charges. Explosive magnetohydrodynamic (MHD) generators are electrical power sources, which convert the kinetic energy of moving plasma into useful electrical energy through the magnetic portion of the Lorentz force. This report describes research conducted by the Air Force Research Laboratory to test specific designs of explosively driven magnetohydrodynamic generators. The goal of the research was to investigate the use of gigawatt generators in driving reactive loads appropriate to diode, and ultimately HPM applications. Two test series were performed, the first of which consisted of experiments on a low voltage generator and the second of which had the goal of scaling the existing design to higher voltage while retaining the reactive-type load. The complex problem of diagnostics of the plasma in this explosive test was addressed using fast, temporally resolved, plasma measurements, as well as spectroscopic plasma constituent measurements.

Agee, F.J.; Baca, G.; Chama, D.; Lehr, F.M.; Englert, T.

1997-10-01

297

Uncertainty Quantification in the Reliability and Risk Assessment of Generation IV Reactors: Final Scientific\\/Technical Report  

Microsoft Academic Search

The project entitled, Uncertainty Quantification in the Reliability and Risk Assessment of Generation IV Reactors, was conducted as a DOE NERI project collaboration between Texas A&M University and The Ohio State University between March 2006 and June 2009. The overall goal of the proposed project was to develop practical approaches and tools by which dynamic reliability and risk assessment techniques

Karen Vierow; Tunc Aldemir

2009-01-01

298

A Study of Ontogenetic and Generational Change in Adolescent Personality by Means of Multivariate Longitudinal Sequences: Phase II. Final Report.  

ERIC Educational Resources Information Center

Assessment of the relationship between ontogenetic (individual) and generational (historical) change in adolescent personality development was the focus of this study. The total sample included 1000 male and female adolescents (ages 13-18) randomly drawn from 32 public school systems in West Virginia following a design using longitudinal sequences

Nesselroade, John R.; Baltes, Paul B.

299

Aerobrake assembly with minimum Space Station accommodation  

NASA Technical Reports Server (NTRS)

The minimum Space Station Freedom accommodations required for initial assembly, repair, and refurbishment of the Lunar aerobrake were investigated. Baseline Space Station Freedom support services were assumed, as well as reasonable earth-to-orbit possibilities. A set of three aerobrake configurations representative of the major themes in aerobraking were developed. Structural assembly concepts, along with on-orbit assembly and refurbishment scenarios were created. The scenarios were exercised to identify required Space Station Freedom accommodations. Finally, important areas for follow-on study were also identified.

Katzberg, Steven J.; Butler, David H.; Doggett, William R.; Russell, James W.; Hurban, Theresa

1991-01-01

300

The International Space Station  

NSDL National Science Digital Library

Users can access news articles, background information and links about the International Space Station. Materials presented here include crew biographies, expedition press kits, accounts of science experiments, and imagery taken from the station. Other features include a clock/counter that logs the station's and the crew's time in orbit and information for ground-based observers who wish to view the station as it passes overhead at night.

301

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.

302

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.

303

Engineering evaluation and analysis for the improvement of military standard generators. Final report, June31 July, 1987  

Microsoft Academic Search

This report presents the analyses and design of specific modifications to the MIL Standard Diesel-Engine-Driven (DED) generator sets (15, 30, and 60 kW). Design improvements targeted towards improving reliability and maintainability are presented. Heavy-duty slides were added to the battery tray to allow an extension of 12 in. out from the existing design. Tee handle latches have been selected to

Lemieux

1987-01-01

304

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

305

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

306

Final Report - Gas Generation Testing of Uranium Metal in Simulated K Basin Sludge and in Grouted Sludge Waste Forms  

SciTech Connect

The Waste Isolation Pilot Plant (WIPP) is being considered for the disposal of K Basin sludge as RH-TRU. Because the hydrogen gas concentration in the 55-gallon RH-TRU sealed drums to be transported to WIPP is limited by flammability safety, the number of containers and shipments likely will be driven by the rate of hydrogen generated by the uranium metal-water reaction (U + 2 H{sub 2}O {yields} UO{sub 2} + 2 H{sub 2}) in combination with the hydrogen generated from water and organic radiolysis. Gas generation testing was conducted with uranium metal particles of known surface area, in simulated K West (KW) Basin canister sludge and immobilized in candidate grout solidification matrices. This study evaluated potential for Portland cement and magnesium phosphate grouts to inhibit the reaction of water with uranium metal in the sludge and thereby permit higher sludge loading to the disposed waste form. The best of the grouted waste forms decreased the uranium metal-water reaction by a factor of four.

Delegard, Calvin H.; Schmidt, Andrew J.; Sell, Rachel L.; Sinkov, Sergei I.; Bryan, Samuel A.; Gano, Sue; Thornton, Brenda M.

2004-08-19

307

Photovoltaic central station step and touch potential considerations in grounding system design  

NASA Astrophysics Data System (ADS)

The probability of hazardous step and touch potentials is an important consideration in central station grounding system design. Steam turbine generating station grounding system design is based on accepted industry practices and there is extensive in-service experience with these grounding systems. A photovoltaic (PV) central station is a relatively new concept and there is limited experience with PV station grounding systems. The operation and physical configuration of a PV central station is very different from a steam electric station. A PV station bears some similarity to a substation and the PV station step and touch potentials might be addressed as they are in substation design. However, the PV central station is a generating station and it is appropriate to examine the effect that the differences and similarities of the two types of generating stations have on step and touch potential considerations.

Engmann, G.

1983-11-01

308

Photovoltaic central station step and touch potential considerations in grounding system design  

NASA Technical Reports Server (NTRS)

The probability of hazardous step and touch potentials is an important consideration in central station grounding system design. Steam turbine generating station grounding system design is based on accepted industry practices and there is extensive in-service experience with these grounding systems. A photovoltaic (PV) central station is a relatively new concept and there is limited experience with PV station grounding systems. The operation and physical configuration of a PV central station is very different from a steam electric station. A PV station bears some similarity to a substation and the PV station step and touch potentials might be addressed as they are in substation design. However, the PV central station is a generating station and it is appropriate to examine the effect that the differences and similarities of the two types of generating stations have on step and touch potential considerations.

Engmann, G.

1983-01-01

309

Parametric study of the potential for BWR ECCS strainer blockage due to LOCA generated debris. Final report  

SciTech Connect

This report documents a plant-specific study for a BWR/4 with a Mark I containment that evaluated the potential for LOCA generated debris and the probability of losing long term recirculation capability due ECCS pump suction strainer blockage. The major elements of this study were: (1) acquisition of detailed piping layouts and installed insulation details for a reference BWR; (2) analysis of plant specific piping weld failure probabilities to estimate the LOCA frequency; (3) development of an insulation and other debris generation and drywell transport models for the reference BWR; (4) modeling of debris transport in the suppression pool; (5) development of strainer blockage head loss models for estimating loss of NPSH margin; (6) estimation of core damage frequency attributable to loss of ECCS recirculation capability following a LOCA. Elements 2 through 5 were combined into a computer code, BLOCKAGE 2.3. A point estimate of overall DEGB pipe break frequency (per Rx-year) of 1.59E-04 was calculated for the reference plant, with a corresponding overall ECCS loss of NPSH frequency (per Rx-year) of 1.58E-04. The calculated point estimate of core damage frequency (per Rx-year) due to blockage related accident sequences for the reference BWR ranged from 4.2E-06 to 2.5E-05. The results of this study show that unacceptable strainer blockage and loss of NPSH margin can occur within the first few minutes after ECCS pumps achieve maximum flows when the ECCS strainers are exposed to LOCA generated fibrous debris in the presence of particulates (sludge, paint chips, concrete dust). Generic or unconditional extrapolation of these reference plant calculated results should not be undertaken.

Zigler, G.; Brideau, J.; Rao, D.V.; Shaffer, C.; Souto, F.; Thomas, W. [Science and Engineering Associates, Inc., Albuquerque, NM (United States)

1995-10-01

310

Space Station overview  

NASA Technical Reports Server (NTRS)

This paper presents an overview of the Space Station, including program guidelines, international involvement, current baseline configuration, and utilization for science and application missions. Space Station configuration and capabilities, plus methods of utilizing the Space Station for scientific and engineering investigations, are described. The Space Station is being designed as a multipurpose facility to support a number of functions, such as a laboratory in space, a transportation node, an assembly facility, a staging base, etc. The description includes the baseline configuration, location of the pressurized modules, servicing and assembly facilities, and the work package structure for Space Station management. The Space Station will accommodate a wide variety of user requirements in laboratory modules and as attached payloads. To show the utility of the Space Station, a variety of science and application missions currently being studied for NASA at the Marshall Space Flight Center are discussed.

De Sanctis, Carmine E.; Priest, C. C.; Wood, W. V.

1987-01-01

311

40 CFR Appendix A to Part 97 - Final Section 126 Rule: EGU Allocations, 2004-2007  

Code of Federal Regulations, 2010 CFR

...NJ CARLL'S CORNER STATION23791 2NJCARLL'S CORNER STATION 2379...LOGAN GENERATING PLANT 100431424...4NJ MILFORD POWER LP106161 ...0PA PHILLIPS POWER STATION3099...SCRUBGRASS GENERATING PLANT50974...

2010-07-01

312

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

313

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

314

Feature generation and statistical analysis of physiological responses to nerve-agent exposure. Final report, January 1984-January 1985  

SciTech Connect

This report describes research carried out on the problem of automated information extraction from multichannel physiological signals. Analog tapes were obtained of data recorded during an animal study of the ventilatory requirements after nerve-agent exposure. The main objective of the research was to determine if the physiological signals contained information relevant to the state of the subject. It was also of great interest to determine if the feature condition of the subject could be predicted from the data obtained at a point shortly after initial contact with the agent. This study also included development of techniques for compression and processing of large volumes of data. This report covers data digitalization, feature generation, and data analysis. Because of the limited numbers of tapes available with adequate quality signals, only three experiments were analyzed in depth. Feature generation and analysis algorithms were developed and used on data from these experiments. Statistical and physiological feature evaluations of the data revealed that information from several signals, when displayed as biplots, permitted differentiation among the carrying states of the animals. Results of this contract indicate that these techniques may be useful in developing algorithms which predict the consequences for casualties based on data obtained shortly after nerve agent exposure.

Fu; Swain, P.H.; Anuta, P.E.

1986-04-01

315

Final Report, Next-Generation Mega-Voltage Cargo-Imaging System for Cargo Conainer Inspection, March 2007  

SciTech Connect

The UNLV Research Foundation, as the primary award recipient, teamed with Varian Medical Systems-Security & Inspection Products and the University of Nevada Las Vegas (UNLV) for the purpose of conducting research and engineering related to a "next-generation" mega-voltage imaging (MVCI) system for inspection of cargo in large containers. The procurement and build-out of hardware for the MVCI project has been completed. The K-9 linear accelerator and an optimized X-ray detection system capable of efficiently detecting X-rays emitted from the accelerator after they have passed through the device is under test. The Office of Science financial assistance award has made possible the development of a system utilizing a technology which will have a profound positive impact on the security of U.S. seaports. The proposed project will ultimately result in critical research and development advances for the "next-generation" Linatron X-ray accelerator technology, thereby providing a safe, reliable and efficient fixed and mobile cargo inspection system, which will very significantly increase the fraction of cargo containers undergoing reliable inspection as the enter U.S. ports. Both NNSA/NA-22 and the Department of Homeland Security's Domestic Nuclear Detection Office are collaborating with UNLV and its team to make this technology available as soon as possible.

Dr. James Clayton, Ph.D., Varian Medical Systems-Security & Inspection Products; Dr. Emma Regentova, Ph.D, University of Nevada Las Vegas; Dr. Evangelos Yfantis, Ph.D., University of Nevada, Las Vegas

2007-03-27

316

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

317

Air pollution study of Laredo Customs Station  

E-print Network

the Canopy. . . . 57 LIST OF FIGURES Figure 1-1 Laredo Custom Station. 3-1 Environmental Wind Tunnel. Page 14 3-2 Wind Tunnel Test Section. 15 3-3 Laredo Custom Station Model 3-4 Oil Smoke Generator. 16 17 3-5 Smoke Bomb Smoke Generator. 3...-6 Titanium Tetrachloride Smoke Generator. . 20 3-7 Video Tape Equipment. 3-8 Schematic of Forced Air System. 3-9 Forced Air System Model 3-10 Canopy Exhaust Fan Model 3-11 Push-Pull System Model. 3-12 Lateral Forced Air System Model. 3-13 Tubing...

Welling, Vidyadhar Yeshwant

1972-01-01

318

Automatic Weather Station (AWS) Lidar  

NASA Technical Reports Server (NTRS)

An autonomous, low-power atmospheric lidar instrument is being developed at NASA Goddard Space Flight Center. This compact, portable lidar will operate continuously in a temperature controlled enclosure, charge its own batteries through a combination of a small rugged wind generator and solar panels, and transmit its data from remote locations to ground stations via satellite. A network of these instruments will be established by co-locating them at remote Automatic Weather Station (AWS) sites in Antarctica under the auspices of the National Science Foundation (NSF). The NSF Office of Polar Programs provides support to place the weather stations in remote areas of Antarctica in support of meteorological research and operations. The AWS meteorological data will directly benefit the analysis of the lidar data while a network of ground based atmospheric lidar will provide knowledge regarding the temporal evolution and spatial extent of Type la polar stratospheric clouds (PSC). These clouds play a crucial role in the annual austral springtime destruction of stratospheric ozone over Antarctica, i.e. the ozone hole. In addition, the lidar will monitor and record the general atmospheric conditions (transmission and backscatter) of the overlying atmosphere which will benefit the Geoscience Laser Altimeter System (GLAS). Prototype lidar instruments have been deployed to the Amundsen-Scott South Pole Station (1995-96, 2000) and to an Automated Geophysical Observatory site (AGO 1) in January 1999. We report on data acquired with these instruments, instrument performance, and anticipated performance of the AWS Lidar.

Rall, Jonathan A.R.; Abshire, James B.; Spinhirne, James D.; Smith, David E. (Technical Monitor)

2000-01-01

319

Space station molecular sieve development  

NASA Technical Reports Server (NTRS)

An essential function of a space environmental control system is the removal of carbon dioxide (CO2) from the atmosphere to control the partial pressure of this gas at levels lower than 3 mm Hg. The use of regenerable solid adsorbents for this purpose was demonstrated effectively during the Skylab mission. Earlier sorbent systems used zeolite molecular sieves. The carbon molecular sieve is a hydrophobic adsorbent with excellent potential for space station application. Although carbon molecular sieves were synthesized and investigated, these sieves were designed to simulate the sieving properties of 5A zeolite and for O2/N2 separation. This program was designed to develop hydrophobic carbon molecular sieves for CO2 removal from a space station crew environment. It is a first phase effort involved in sorbent material development and in demonstrating the utility of such a material for CO2 removal on space stations. The sieve must incorporate the following requirements: it must be hydrophobic; it must have high dynamic capacity for carbon dioxide at the low partial pressure of the space station atmosphere; and it must be chemiclly stable and will not generate contaminants.

Chang, C.; Rousseau, J.

1986-01-01

320

Space station propulsion test bed  

NASA Technical Reports Server (NTRS)

A test bed was fabricated to demonstrate hydrogen/oxygen propulsion technology readiness for the intital operating configuration (IOC) space station application. The test bed propulsion module and computer control system were delivered in December 1985, but activation was delayed until mid-1986 while the propulsion system baseline for the station was reexamined. A new baseline was selected with hydrogen/oxygen thruster modules supplied with gas produced by electrolysis of waste water from the space shuttle and space station. As a result, an electrolysis module was designed, fabricated, and added to the test bed to provide an end-to-end simulation of the baseline system. Subsequent testing of the test bed propulsion and electrolysis modules provided an end-to-end demonstration of the complete space station propulsion system, including thruster hot firings using the oxygen and hydrogen generated from electrolysis of water. Complete autonomous control and operation of all test bed components by the microprocessor control system designed and delivered during the program was demonstrated. The technical readiness of the system is now firmly established.

Briley, G. L.; Evans, S. A.

1989-01-01

321

Economic feasibility analysis of distributed electric power generation based upon the natural gas-fired fuel cell. Final report  

SciTech Connect

The final report provides a summary of results of the Cost of Ownership Model and the circumstances under which a distributed fuel cell is economically viable. The analysis is based on a series of micro computer models estimate the capital and operations cost of a fuel cell central utility plant configuration. Using a survey of thermal and electrical demand profiles, the study defines a series of energy user classes. The energy user class demand requirements are entered into the central utility plant model to define the required size the fuel cell capacity and all supporting equipment. The central plant model includes provisions that enables the analyst to select optional plant features that are most appropriate to a fuel cell application, and that are cost effective. The model permits the choice of system features that would be suitable for a large condominium complex or a residential institution such as a hotel, boarding school or prison. Other applications are also practical; however, such applications have a higher relative demand for thermal energy, a characteristic that is well-suited to a fuel cell application with its free source of hot water or steam. The analysis combines the capital and operation from the preceding models into a Cost of Ownership Model to compute the plant capital and operating costs as a function of capacity and principal features and compares these estimates to the estimated operating cost of the same central plant configuration without a fuel cell.

Not Available

1994-03-01

322

Compact lightweight power PEMFC operating from a unique hydrogen generating system. Final report, September 1993-March 1995  

SciTech Connect

The goal of this program was to investigate the feasibility, for the military, of a 120-watt, 20,000- watt-power source weighing near ten pounds. An air breathing proton exchange membrane fuel cell (PEMFC) utilizing hydrogen from Lithium Borohydride (LiBH4) could theoretically meet this specification. Giner, Inc. has established that a hydrogen generator, utilizing LiBH4, provides a hydrogen current flux of 150 Amps/sq ft with about 60% long-term utilization. Additionally, Giner, Inc. demonstrated a 120-watt fuel cell system, which operated at approximately 12 volts at 100 Amps/sq ft (10 amps through a 0.1 -sq ft active area). Integrating the two systems will require further effort and development work.

Theriault, R.

1995-11-01

323

Toxicology Studies on Lewisite and Sulfur Mustard Agents: Two-Generation Reproduction Study of Lewisite in Rats Final Report  

SciTech Connect

Occupational health standards have not been established for Lewisite [bis(2-chlorethyl)arsine], a potent toxic vesicant which reacts with the sulfhydryl groups of proteins through its arsenic group. The purposes of this study were to determine the reproductive consequences and dose~response of continuing Lewisite exposure of parental males and females and their offspring in a 42-week two-generation study. Solutions of Lewisite were prepared for administration by diluting the neat agent with sesame oil. Rats were administered Lewisite (0, 0.10, 0.25 or 0.60 mg/kg/day for 5 days a week) via intragastric intubation prior to mating, during mating and after mating until the birth of their offspring. The dams continued to receive Lewisite during lactation. At weaning, male and female offspring of each group were selected to continue on the study; rece1v1ng Lewisite during adolescence, mating and throughout gestation. Again, the dams continued to receive Lewisite until weaning of the offspring. Lewisite had no adverse effect on reproduction performance, fertility or reproductive organ weights of male or female rats through two consecutive generations. No adverse effect to offspring were attributed to Lewisite exposure. Minor changes in growth was the only maternal effect observed. Lewisite exposure of parental rats caused no gross or microscopic lesions in testes, epididymis, prostrate, seminal vesicles, ovaries, uterus or vagina. Severe inflammation of the lung was observed at necropsy in cases in which Lewisite gained access to the respiratory system from accidental dosing or reflux and aspiration; this usually caused early death of the animal. The NOEL for reproductive effects in this study was greater than 0.60 mg/kg/day.

Sasser, L. B.; Cushing, J. A.; Kalkwarf, D. R.; Mellick, P. W.; Buschbom, R. L.

1989-07-15

324

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

325

Population inversions in ablation plasmas generated by intense electron beams. Final report, 1 November 1985-31 October 1988  

SciTech Connect

Experiments during the past three years have concerned the generation and spectroscopic study of electron beam-driven carbon plasmas in order to explore the production of optical and ultraviolet radiation from nonequilibrium populations. The output of MELBA (Michigan Electron Long Beam Accelerator), has been connected to an electron-beam diode consisting of an aluminum (or brass) cathode stalk and a carbon anode. Magnetic-field coils were designed, procured, and utilized to focus the electron beam. A side viewing port permitted spectroscopic diagnostics to view across the surface of the anode. Spectroscopic diagnosis was performed using a 1-m spectrograph capable of operation from the vacuum-ultraviolet through the visible. This spectrograph is coupled to a 1024-channel optical multichannel analyzer. Spectra taken during the initial 400-ns period of the e-beam pulse showed a low effective-charge plasma with primarily molecular components (C/sub 2/, CH) as well as atomic hydrogen and singly ionized carbon (CII). When the generator pulse was crowbarred after the first 400 ns, the spectra revealed a continuation of the low-charge-state plasma. At times greater than 400 ns in non-crowbarred shots, the spectra revealed a highly ionized plasma with a very large intensity line at 2530 Angstroms due to CIV (5g-4f), and lower-intensity lines due to CIII and CII. This CIV line emission increased with time, peaking sharply between 750 and 900 ns, and decayed rapidly in less than 100 ns. Emission from these high ionization states may be due to electron beam-plasma instabilities, as this emission was accompanied by high levels of radio frequency and microwave emission.

Gilgenbach, R.M.; Kammash, T.; Brake, M.L.

1988-11-01

326

Space Station Freedom Utilization Conference  

NASA Technical Reports Server (NTRS)

The topics addressed in Space Station Freedom Utilization Conference are: (1) space station freedom overview and research capabilities; (2) space station freedom research plans and opportunities; (3) life sciences research on space station freedom; (4) technology research on space station freedom; (5) microgravity research and biotechnology on space station freedom; and (6) closing plenary.

1992-01-01

327

Infrared monitoring of the Space Station environment  

NASA Technical Reports Server (NTRS)

The measurement and monitoring of infrared emission in the environment of the Space Station has a twofold importance - for the study of the phenomena itself and as an aid in planning and interpreting Station based infrared experiments. Spectral measurements of the infrared component of the spacecraft glow will, along with measurements in other spectral regions, provide data necessary to fully understand and model the physical and chemical processes producing these emissions. The monitoring of the intensity of these emissions will provide background limits for Space Station based infrared experiments and permit the determination of optimum instrument placement and pointing direction. Continuous monitoring of temporal changes in the background radiation (glow) will also permit better interpretation of Station-based infrared earth sensing and astronomical observations. The primary processes producing infrared emissions in the Space Station environment are: (1) Gas phase excitations of Station generated molecules ( e.g., CO2, H2O, organics...) by collisions with the ambient flux of mainly O and N2. Molecular excitations and generation of new species by collisions of ambient molecules with Station surfaces. They provide a list of resulting species, transition energies, excitation cross sections and relevant time constants. The modeled spectrum of the excited species occurs primarily at wavelengths shorter than 8 micrometer. Emissions at longer wavelengths may become important during rocket firing or in the presence of dust.

Kostiuk, Theodor; Jennings, Donald E.; Mumma, Michael J.

1988-01-01

328

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

329

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

330

Engineering evaluation and analysis for the improvement of military standard generators. Final report, June-31 July, 1987  

SciTech Connect

This report presents the analyses and design of specific modifications to the MIL Standard Diesel-Engine-Driven (DED) generator sets (15, 30, and 60 kW). Design improvements targeted towards improving reliability and maintainability are presented. Heavy-duty slides were added to the battery tray to allow an extension of 12 in. out from the existing design. Tee handle latches have been selected to improve door sealing after repeated use. Soft isolation mounts were selected to withstand the impact of an 8-mph rail impact. The throttle was relocated to the control panel to facilitate noise-attenuation modifications. A low coolant impedance sensor was added to the set to prevent damage to the set from operation with low coolant levels. Use of a different engine-exhaust muffler for reduced sound signatures has an accompanying new exhaust-outlet location and orientation (vertical). After evaluation of manufacturers' engine data obtained during a market surveillance, the Hercules D3400-T engine was recommended for installation and testing as a replacement engine for the 60 KW DED set. Modifications resembling the Regency Net Sound attenuation design were adapted to the 15-, 30-, and 60-kW DED sets. These modifications include sound insulation, engine air intake silencer, engine exhaust muffler, and cooling-air intake and exhaust baffling.

Lemieux, L.N.

1987-07-31

331

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

332

Electric-generation-expansion analysis system. Volume 1: solution techniques, computing methods, and results. Final report. [EGEAS computer code  

SciTech Connect

EGEAS is a modular state-of-the-art capacity expansion software package. It contains five capacity expansion analysis options ranging from preliminary analysis tools based on screening curves and linear programming to sophisticated non-linear analysis tools utilizing a Generalized Benders' Decomposition algorithm and a Dynamic Programming algorithm. A stand alone, detailed probabilistic production costing algorithm is also available for prespecified expansion plan production cost and reliability analysis. The multiple EGEAS analysis options are incorporated into a single control analysis program allowing users to match the analysis option selected to a particular problem's requirements and complexity. At the same time, the implementation of a flexible modular and extendable data base common to all five analysis options simplifies data input and maintenance, and rules out input-related inconsistencies among the analysis options. The development and implementation of a detailed but nevertheless efficient probabilistic production costing algorithm made possible the addition to EGEAS of a number of advanced features. These features include maintenance scheduling, economy interchange and reserve sharing, storage and limited energy unit modeling as well as Non-Dispatchable Generation and Load Management analysis. Sensitivity, uncertainty and trade-off analyses are also available in EGEAS. The structure and capabilities of EGEAS as well as the results of a testing and validation effort exercise are presented in this Volume, No. 1.

Caramanis, M.C.; Schweppe, F.C.; Tabors, R.D.

1982-08-01

333

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 stations?? 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; )

2009-07-01

334

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

335

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

336

Technology for space station  

NASA Astrophysics Data System (ADS)

Some of the most significant advances made in the space station discipline technology program are examined. Technological tasks and advances in the areas of systems/operations, environmental control and life support systems, data management, power, thermal considerations, attitude control and stabilization, auxiliary propulsion, human capabilities, communications, and structures, materials, and mechanisms are discussed. An overview of NASA technology planning to support the initial space station and the evolutionary growth of the space station is given.

Colladay, R. S.; Carlisle, R. F.

1984-10-01

337

Space Station Parametric Models  

NASA Technical Reports Server (NTRS)

The development of two parametric models for a four-panel planar initial space station is described. The derivations of the distributed parameter model are presented in detail with the hope that the same method and procedures can be employed for stations with different configurations or for changes within the same configuration class. The 19-DOF finite-element model is also described. With the availability of the 19-DOF and a lower-DOF space station models, the frequency characteristics of the various dynamical systems in the space station environment are identified.

Hamidi, M.; Wang, S. J.

1985-01-01

338

Weather Station Model  

NSDL National Science Digital Library

This lesson instructs students on how to read station models, the symbols used on weather maps to show data (temperature, wind speed and direction, barometeric pressure, etc.) for a given reporting station. It includes a diagram of a station model, an explanation of the data conveyed by the numbers and symbols, and a table of definitions for the graphic symbols used with models. There is also a set of interactive station models students can use for practice at interpretation, and an interactive exercise in which students use real-time weather data to interpret models.

339

International Space Station: Update  

NSDL National Science Digital Library

In November 1998, Zarya was launched into space, ushering in the era of the International Space Station (featured in the November 25, 1998 Scout Report for Science & Engineering). This month, the docking of the Zvezda Service Module marks the beginning of yet another phase -- in which Zvezda will serve as living quarters to the first ever resident crew (Expedition One), scheduled to arrive at the International Space Station in early November. This site from NASA provides updated information on the International Space Station, including recent news, planned missions, and a virtual tour of the (yet-to-be-completed) station.

340

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

341

Space Station tethered elevator system  

NASA Technical Reports Server (NTRS)

The optimized conceptual engineering design of a space station tethered elevator is presented. The tethered elevator is an unmanned, mobile structure which operates on a ten-kilometer tether spanning the distance between Space Station Freedom and a platform. Its capabilities include providing access to residual gravity levels, remote servicing, and transportation to any point along a tether. The report discusses the potential uses, parameters, and evolution of the spacecraft design. Emphasis is placed on the elevator's structural configuration and three major subsystem designs. First, the design of elevator robotics used to aid in elevator operations and tethered experimentation is presented. Second, the design of drive mechanisms used to propel the vehicle is discussed. Third, the design of an onboard self-sufficient power generation and transmission system is addressed.

Haddock, Michael H.; Anderson, Loren A.; Hosterman, K.; Decresie, E.; Miranda, P.; Hamilton, R.

1989-01-01

342

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

343

On-Site Hydrogen Generation & Refueling Station  

E-print Network

Swing Adsorption (PSA) Producing 100 nm3/hr of high purity hydrogen Compression & Storage for 5000 Thermal Reforming (ATR) technology Advanced sulfur removal technology Purification through Pressure

344

AES Huntington Beach Generation Station Surf Zone  

E-print Network

: establishing a sampling and monitoring plan for a period of 14 weeks; sampling surface water and inplant waterH, temperature, salinity, conductivity, DO, turbidity, and ammonia); conducting bacterial source and to quantitatively predict the potential impact of the AES HBGS on the beach; monitor temperature and salinity

345

CASE CRITICAL The Navajo Generating Station  

E-print Network

-sensitive sustainability concerns at the local, national, and global level. Experts swiftly mobilize for solution- based power to customers in three states and for the Central Arizona Project to pump Colorado River water-old plant, Arizona's largest single source of carbon pollution, needs to update its pollution controls. Join

Hall, Sharon J.

346

NEXT GENERATION SOLVENT-MATERIALS COMPATIBILITY WITH POLYMER COMPONENTS WITHIN MODULAR CAUSTIC-SIDE SOLVENT EXTRACTION UNIT (FINAL REPORT)  

SciTech Connect

The Office of Waste Processing, within the Office of Technology Innovation and Development, is funding the development of an enhanced solvent for deployment at the Savannah River Site for removal of cesium from High Level Waste. The technical effort is collaboration between Oak Ridge National Laboratory (ORNL), Savannah River National Laboratory (SRNL), and Argonne National Laboratory. The first deployment target for the technology is within the Modular Caustic-Side Solvent Extraction Unit (MCU). Deployment of a new chemical within an existing facility requires verification that the chemical components are compatible with the installed equipment. In the instance of a new organic solvent, the primary focus is on compatibility of the solvent with organic polymers used in the facility. This report provides the data from exposing these polymers to the Next Generation Solvent (NGS). The test was conducted over six months. An assessment of the dimensional stability of polymers present in MCU (i.e., PEEK, Grafoil, Tefzel and Isolast) in the modified NGS (where the concentration of LIX{reg_sign}79 and MaxCalix was varied systematically) showed that LIX{reg_sign}79 selectively affected Tefzel and its different grades (by an increase in size and lowering its density). The copolymer structure of Tefzel and possibly its porosity allows for the easier diffusion of LIX{reg_sign}79. Tefzel is used as the seat material in some of the valves at MCU. Long term exposure to LIX{reg_sign}79, may make the valves hard to operate over time due to the seat material (Tefzel) increasing in size. However, since the physical changes of Tefzel in the improved solvent are comparable to the changes in the CSSX baseline solvent, no design changes are needed with respect to the Tefzel seating material. PEEK, Grafoil and Isolast were not affected by LIX{reg_sign}79 and MaxCalix within six months of exposure. The initial rapid weight gain observed in every polymer is assigned to the finite and limited uptake of Isopar{reg_sign} L/Modifier by the polymers probably due to the polymers porosity and rough surfaces. Spectroscopic data on the organic liquid and the polymer surfaces showed no preferential adsorption of any component in the NGS to the polymers and with the exception of CPVC, no leachate was observed in the NGS from any of the polymers studied. The testing shows no major concerns for compatibility over the short duration of these tests but does indicate that longer duration exposure studies are warranted, especially for Tefzel. However, the physical changes experienced by Tefzel in the improved solvent were comparable to the physical changes obtained when Tefzel is placed in CSSX baseline solvent. Therefore, there is no effect of the improved solvent beyond those observed in CSSX baseline solvent.

Fondeur, F.; Peters, T.; Fink, S.

2012-01-17

347

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

348

Managing NASA's International Space Station Logistics and Maintenance program  

Microsoft Academic Search

The International Space Station will be a permanently manned orbiting vehicle that has no landing gear, no international borders, and no organizational lines-it is one Station that must be supported by one crew, 24 hours a day, 7 days a week, 365 days a year. It flies partially assembled for a number of years before it is finally complete in

Anthony J. Butina

2001-01-01

349

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

350

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

351

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.

Lunar and Planetary Institute

2011-01-01

352

Station 13 revisited  

NASA Astrophysics Data System (ADS)

The article I wrote on the somewhat mysterious tracking station at Babsfontein in Gauteng (MNASSA Vol. 11 nos 3&4, April 2012) resulted in some correspondence, enabling me to get into contact with people who had worked at the station. This made it necessary to update the original article.

Roberts, G.

2012-10-01

353

ROCKY MOUNTAIN Research Station  

E-print Network

ROCKY MOUNTAIN Research Station New Publications July­ September 2003 What's Inside . . . · Hayman Research Station's Web site for regular updates on new publications at: http. write report number in space provided (e.g., INT-GTR-373). Without a card: 3. Cut off postcard and mail

354

ROCKY MOUNTAIN Research Station  

E-print Network

ROCKY MOUNTAIN Research Station New Publications October­ December 2003 What's Inside . . . · RAWS mailing of New Publications? Check the Rocky Mountain Research Station's Web site for regular updates former INT or RM reports, 2. Follow steps 1, 2, and 3 previous. write report number in space provided (e

355

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

356

Clarke Stations and mercurian mass-drivers: energy for large-scale transportation systems  

Microsoft Academic Search

Three-week voyages across 1 AU could be made in large sailing craft propelled by microwaves generated at power stations operating at 0.1 AU from the sun. The power stations could be built of mercurian materials launched by mass driver to building sites in solar orbit. A Clarke Station 28 km in radius could generate 64 TW of microwaves and support

1985-01-01

357

Distributed generation  

SciTech Connect

Distributed generation, locating electricity generators close to the point of consumption, provides some unique benefits to power companies and customers that are not available from centralized electricity generation. Photovoltaic (PV) technology is well suited to distributed applications and can, especially in concert with other distributed resources, provide a very close match to the customer demand for electricity, at a significantly lower cost than the alternatives. In addition to augmenting power from central-station generating plants, incorporating PV systems enables electric utilities to optimize the utilization of existing transmission and distribution.

Ness, E.

1999-09-02

358

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

359

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

360

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

361

Design-Tradeoff Model For Space Station  

NASA Technical Reports Server (NTRS)

System Design Tradeoff Model (SDTM) computer program produces information which helps to enforce consistency of design objectives throughout system. Mathematical model of set of possible designs for Space Station Freedom. Program finds particular design enabling station to provide specified amounts of resources to users at lowest total (or life-cycle) cost. Compares alternative design concepts by changing set of possible designs, while holding specified services to users constant, and then comparing costs. Finally, both costs and services varied simultaneously when comparing different designs. Written in Turbo C 2.0.

Chamberlain, Robert G.; Smith, Jeffrey L.; Borden, Chester S.; Deshpande, Govind K.; Fox, George; Duquette, William H.; Dilullo, Larry A.; Seeley, Larry; Shishko, Robert

1990-01-01

362

Enabler operator station  

NASA Technical Reports Server (NTRS)

The objective of this project was to design an onboard operator station for the conceptual Lunar Work Vehicle (LWV). The LWV would be used in the colonization of a lunar outpost. The details that follow, however, are for an Earth-bound model. The operator station is designed to be dimensionally correct for an astronaut wearing the current space shuttle EVA suit (which include life support). The proposed operator station will support and restrain an astronaut as well as to provide protection from the hazards of vehicle rollover. The threat of suit puncture is eliminated by rounding all corners and edges. A step-plate, located at the front of the vehicle, provides excellent ease of entry and exit. The operator station weight requirements are met by making efficient use of rigid members, semi-rigid members, and woven fabrics.

Bailey, Andrea; Kietzman, John; King, Shirlyn; Stover, Rae; Wegner, Torsten

1992-01-01

363

Overview of space station  

NASA Technical Reports Server (NTRS)

An overview of the Space Station program for workshop participants is given. Covered here are overall program guidelines, international involvement, the present baseline configuration, and development plans for the coming year.

Priest, Claude C.

1990-01-01

364

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

365

Space station technology  

NASA Astrophysics Data System (ADS)

In an evaluation of the current technological basis for a space station, the Space Station Technology Steering Committee (SSTSC) came to the conclusion that a space station could certainly be made with existing technology. It was, however, found that state-of-the-art technology would not provide for the evolutionary growth aspects of a long life system. In the process of its reviews, the SSTSC identified 10 specific disciplines to categorize the technology which was found to be relevant or potentially applicable to a future space station design. Attention is given to the objectives for the advanced development program, systems and operations, data management, crew and life support, power, thermal management, human capability, auxiliary propulsion, fluid management systems, attitude control and stabilization, structures and mechanisms, and communications.

Tumulty, W. T.

366

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

367

Space Station Food System  

NASA Technical Reports Server (NTRS)

A team of engineers and food scientists from NASA, the aerospace industry, food companies, and academia are defining the Space Station Food System. The team identified the system requirements based on an analysis of past and current space food systems, food systems from isolated environment communities that resemble Space Station, and the projected Space Station parameters. The team is resolving conflicts among requirements through the use of trade-off analyses. The requirements will give rise to a set of specifications which, in turn, will be used to produce concepts. Concept verification will include testing of prototypes, both in 1-g and microgravity. The end-item specification provides an overall guide for assembling a functional food system for Space Station.

Thurmond, Beverly A.; Gillan, Douglas J.; Perchonok, Michele G.; Marcus, Beth A.; Bourland, Charles T.

1986-01-01

368

Space station data flow  

NASA Technical Reports Server (NTRS)

The results of the space station data flow study are reported. Conceived is a low cost interactive data dissemination system for space station experiment data that includes facility and personnel requirements and locations, phasing requirements and implementation costs. Each of the experiments identified by the operating schedule is analyzed and the support characteristics identified in order to determine data characteristics. Qualitative and quantitative comparison of candidate concepts resulted in a proposed data system configuration baseline concept that includes a data center which combines the responsibility of reprocessing, archiving, and user services according to the various agencies and their responsibility assignments. The primary source of data is the space station complex which provides through the Tracking Data Relay Satellite System (TDRS) and by space shuttle delivery data from experiments in free flying modules and orbiting shuttles as well as from the experiments in the modular space station itself.

1972-01-01

369

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.

Dr. Diane Byerly

2006-01-01

370

Space station proposed  

NASA Astrophysics Data System (ADS)

In his State of the Union address on January 25, President Ronald Reagan announced that he was directing the National Aeronautics and Space Administration (NASA) to develop a permanently manned space station, and to do it within a decade.Included in the NASA budget proposal sent to Congress the following week was $150 million for the station. This is the first request of many; expected costs will total roughly $8 billion by the early 1990's.

371

Caring Together: Activity Stations  

NSDL National Science Digital Library

In this Bob the Builder(TM)-themed activity, learners explore the 3Rs (Reduce, Reuse, Recycle) by rotating through several activity stations. Activity stations may include: packing a lunch in reusable containers; sorting recyclable cans, plastic containers, and newspaper; playing with water in recycled containers and toys; making a collage by reusing magazine pictures; and drawing on both sides of the paper. This activity is featured on page 14 of the "Bob the Builder(TM) Project: Build It" unit of study.

The Children's Museum of Indianapolis

2006-01-01

372

Polarization Processing at LWA Stations Steve Ellingson  

E-print Network

. E-mail: ellingson@vt.edu 1 #12;1 Introduction The current version of the LWA station architecture [1 in the plane transverse to the direction of propagation; and Ea0, Eb0, and being real-valued constants which stand, it generates voltages across the antenna terminals equal to Vc = E · lc(^r) and (16) Vd = E · ld

Ellingson, Steven W.

373

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

374

7 CFR 1726.125 - Generating plant facilities.  

Code of Federal Regulations, 2013 CFR

...generating stations. Engineering services, steam generator...combustion turbine plants. Engineering services, prime mover and...Hydro installations. Engineering services, turbine/generator, civil works and powerhouse...

2013-01-01

375

7 CFR 1726.125 - Generating plant facilities.  

Code of Federal Regulations, 2014 CFR

...generating stations. Engineering services, steam generator...combustion turbine plants. Engineering services, prime mover and...Hydro installations. Engineering services, turbine/generator, civil works and powerhouse...

2014-01-01

376

7 CFR 1726.125 - Generating plant facilities.  

Code of Federal Regulations, 2011 CFR

...generating stations. Engineering services, steam generator...combustion turbine plants. Engineering services, prime mover and...Hydro installations. Engineering services, turbine/generator, civil works and powerhouse...

2011-01-01

377

7 CFR 1726.125 - Generating plant facilities.  

Code of Federal Regulations, 2012 CFR

...generating stations. Engineering services, steam generator...combustion turbine plants. Engineering services, prime mover and...Hydro installations. Engineering services, turbine/generator, civil works and powerhouse...

2012-01-01

378

7 CFR 1726.125 - Generating plant facilities.  

Code of Federal Regulations, 2010 CFR

...generating stations. Engineering services, steam generator...combustion turbine plants. Engineering services, prime mover and...Hydro installations. Engineering services, turbine/generator, civil works and powerhouse...

2010-01-01

379

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

380

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

381

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

382

Data collection and analysis in support of risk assessment for hydroelectric stations  

SciTech Connect

This project is to provide the U.S. Army Corps of Engineers with a risk analysis that evaluates the non-routine closure of water flow through the turbines of powerhouses along the Columbia and Snake Rivers. The project is divided into four phases. Phase 1 efforts collected and analyzed relevant plant failure data for hydroelectric generating stations in the United States and Canada. Results from the Phase 1 efforts will be used to assess the risk (probability times consequences) associated with non-routine shut down of hydroelectric stations, which will be performed in the remaining phases of the project. Results of this project may be used to provide policy recommendations regarding operation and maintenance of hydroelectric stations. The methodology used to complete the Phase 1 of the project is composed of data collection and analysis activities. Data collection included performing site visits, conducting a data survey of hydroelectric stations, conducting an expert panel workshop, and reviewing and tabulating failure data from generic sources. Data analysis included estimating failure rates obtained from the survey data, expert judgment elicitation process, generic data, and combining these failure rates to produce final failure rate parameters. This paper summarizes the data collection analysis, results and discussions for the Phase 1 efforts.

Vo, T.V.; Mitts, T.M.; Phan, H.K.; Blackburn, T.R.; Casazza, L.O.

1995-10-01

383

MSFC Space Station Program Commonly Used Acronyms and Abbreviations Listing  

NASA Technical Reports Server (NTRS)

The Marshall Space Flight Center maintains an active history program to assure that the foundation of the Center's history is captured and preserved for current and future generations. As part of that overall effort, the Center began a project in 1987 to capture historical information and documentation on the Marshall Center's roles regarding Space Shuttle and Space Station. This document is MSFC Space Station Program Commonly Used Acronyms and Abbreviations Listing. It contains acronyms and abbreviations used in Space Station documentation and in the Historian Annotated Bibliography of Space Station Program. The information may be used by the researcher as a reference tool.

Gates, Thomas G.

1988-01-01

384

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

385

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

386

Gravitational biology on the space station  

NASA Technical Reports Server (NTRS)

The current status of gravitational biology is summarized, future areas of required basic research in earth-based and spaceflight projects are presented, and potential applications of gravitational biology on a space station are demonstrated. Topics covered include vertebrate reproduction, prenatal/postnatal development, a review of plant space experiments, the facilities needed for growing plants, gravimorphogenesis, thigmomorphogenesis, centrifuges, maintaining a vivarium, tissue culture, and artificial human organ generation. It is proposed that space stations carrying out these types of long-term research be called the National Space Research Facility.

Keefe, J. R.; Krikorian, A. D.

1983-01-01

387

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

388

MAIN HYDRAULIC OIL TANK FOR GOVERNORS, AND 56 KW STATION ...  

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

MAIN HYDRAULIC OIL TANK FOR GOVERNORS, AND 56 KW STATION GENERATOR WITH MECHANICAL GOVERNOR. PHOTO BY JET LOWE, HAER, 1995. - Elwha River Hydroelectric System, Glines Hydroelectric Dam & Plant, Port Angeles, Clallam County, WA

389

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

390

47 CFR 97.119 - Station identification.  

Code of Federal Regulations, 2013 CFR

...RADIO SERVICES AMATEUR RADIO SERVICE Station Operation Standards 97.119 Station identification. (a) Each amateur station, except a space station or telecommand station, must transmit its assigned call sign on its...

2013-10-01

391

47 CFR 97.119 - Station identification.  

Code of Federal Regulations, 2011 CFR

...RADIO SERVICES AMATEUR RADIO SERVICE Station Operation Standards 97.119 Station identification. (a) Each amateur station, except a space station or telecommand station, must transmit its assigned call sign on its...

2011-10-01

392

47 CFR 97.119 - Station identification.  

Code of Federal Regulations, 2012 CFR

...RADIO SERVICES AMATEUR RADIO SERVICE Station Operation Standards 97.119 Station identification. (a) Each amateur station, except a space station or telecommand station, must transmit its assigned call sign on its...

2012-10-01

393

47 CFR 97.119 - Station identification.  

Code of Federal Regulations, 2010 CFR

...RADIO SERVICES AMATEUR RADIO SERVICE Station Operation Standards 97.119 Station identification. (a) Each amateur station, except a space station or telecommand station, must transmit its assigned call sign on its...

2010-10-01

394

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 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.

2014-07-11

395

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

396

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

397

Redwood Field Station Research  

NSDL National Science Digital Library

This portal provides information on the environmental issues and research projects being conducted in Redwood National and State Parks. The Redwood Field Station, part of the United States Geological Survey's (USGS) Western Ecological Research Center, is involved with restoration of the physical and biological landscapes in the parks, including inventory and monitoring of erosion, sediment transport, and stream temperatures; evaluating the effectiveness of various strategies for watershed restoration; and determining the influence of timber harvest and floods on riparian areas. Users will find links to individual project web pages, as well as a list of Redwood Field Station products and publications.

398

Davis Weather Station Protocol  

NSDL National Science Digital Library

This resource provides instructions on how to log atmosphere data using a Davis weather station. A weather station is setup to measure and record atmospheric measurements at 15-minute intervals and can be transferred to the GLOBE program via email. Students can view data for their school that are continuous and show variations within a day. The data collected includes wind speed and direction and pressure thereby supporting a more complete study of meteorology using GLOBE. Students pursue a more extensive set of research investigations.

The GLOBE Program, UCAR (University Corporation for Atmospheric Research)

2003-08-01

399

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

400

Supply of Single-Phase Loads from Central Stations  

Microsoft Academic Search

American central stations, contrary to European practise, have extensively adopted single-phase distribution from polyphase stations, balancing the loads among the different phases by grouping of the single-phase feeders or the distributing substations. Voltage regulation for lighting circuits has been supplemented by individual regulators. Generators with good single-phase characteristics were sometimes employed. In other cases generators were installed of larger kilovolt-ampere

Philip Torchio

1916-01-01

401

International Space Station technology demonstrations  

NASA Astrophysics Data System (ADS)

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 ISS Pre-Planned Program Improvement (P3I), Technology/Improvement Roadmap. The P3I roadmap is an integrated set of technology and improvement requirements for: (1) ISS subsystem upgrades and improvements (addressing maintenance, logistics, sustainability, and enhancement functions), (2) payload hardware technology infusion, (3) ISS/Exploration technology development and tests (dual use/benefits), and (4) Engineering Research and Technology payloads. As examples of the International Space Station's technology testbed capabilities, implementation approaches for three types of propulsion technology demonstrations and research are described: (1) electric and electromagnetic propulsion technologies and systems (NASA Lewis Research Center), (2) technologies and sub-systems for a variable specific impulse (Isp), magnetoplasma rocket (VASIMR), (Advanced Propulsion Lab, Sonny Carter Training Facility, Houston, Tx), and (3) candidates for innovative, deep space propulsion technology research and demonstrations (projections based on NASA Advanced Space Transportation Program, Propulsion Research and other R.&D activities.).

Holt, Alan C.

1998-01-01

402

Zebra mussel control using thermal treatment for electric utility stations  

SciTech Connect

When electric utilities and other water users on the Great Lakes were confronted with operating problems due to zebra mussels, Commonwealth Edison Company (ComEd) established a task force to develop a plan to counteract the threat at the ComEd electric generating stations. A monitoring program was initiated at the stations, and an evaluation of control options was started. At State Line Station, located on the southern tip of Lake Michigan, ComEd experimented with thermal treatment of the circulating water and service water systems. The station design allows recirculation of the cooling water with minimal modifications. The trial at State Line Station proved successful in controlling the zebra mussels with minimal impact on operations. Based on the successful trial and the task force`s assessment of other control options, ComEd determined that, for their fossil-fueled generating stations, thermal treatment was the most cost-effective approach, with the least impact on station operation and the environment. Of the 10 fossil-fueled generating stations operated by ComEd, 8 have been selected for modifications. The other 2 stations have not yet been affected by zebra mussels. Before performing detailed design, a study was performed for each station to evaluate the operation of the equipment at elevated temperature and to determine the operating limits needed at the target treatment temperature of 95 F. Conceptual designs for the modifications were developed, and the most cost-effective arrangement was selected for detailed design. Case studies of the modifications being constructed at several stations are presented. The modifications to the circulating water systems are described. Initial results of the treatment are reviewed.

Marcus, R.I. [Commonwealth Edison Co., Downers Grove, IL (United States); Wahlert, S.L. [Sargent and Lundy, Chicago, IL (United States)

1995-10-01

403

The Home Weather Station.  

ERIC Educational Resources Information Center

Described is how an amateur weather observer measures and records temperature and precipitation at a well-equipped, backyard weather station. Directions for building an instrument shelter and a description of the instruments needed for measuring temperature and precipitation are included. (KR)

Steinke, Steven D.

1991-01-01

404

Florida Agricultural Experiment Station  

E-print Network

as well as managing insects that impact humans. We introduce you to a new superior bahiagrass for cattle and their needs. IFAS researchers are the vanguard, the point, the lead in seeking answers to serve and improve the quality of lives. Welcome to the Florida Agricultural Experiment Station. Mark R. McLellan Dean

Jawitz, James W.

405

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

406

Research Station United States  

E-print Network

of Agriculture or the Forest Service of any product or service to the exclusion of others that may be suitableNorthern Research Station United States Department of Agriculture Forest Service General Technical logistics and her organizing assistance with this proceedings. The findings and conclusions of each article

407

Space Station Water Quality  

NASA Technical Reports Server (NTRS)

The manned Space Station will exist as an isolated system for periods of up to 90 days. During this period, safe drinking water and breathable air must be provided for an eight member crew. Because of the large mass involved, it is not practical to consider supplying the Space Station with water from Earth. Therefore, it is necessary to depend upon recycled water to meet both the human and nonhuman water needs on the station. Sources of water that will be recycled include hygiene water, urine, and cabin humidity condensate. A certain amount of fresh water can be produced by CO2 reduction process. Additional fresh water will be introduced into the total pool by way of food, because of the free water contained in food and the water liberated by metabolic oxidation of the food. A panel of scientists and engineers with extensive experience in the various aspects of wastewater reuse was assembled for a 2 day workshop at NASA-Johnson. The panel included individuals with expertise in toxicology, chemistry, microbiology, and sanitary engineering. A review of Space Station water reclamation systems was provided.

Willis, Charles E. (editor)

1987-01-01

408

Space station energy sizing  

SciTech Connect

A general schematic for a space station power system is described. The major items of interest in the power system are the solar array, transfer devices, energy storage, and conversion equipment. Each item will have losses associated with it and must be utilized in any sizing study, and can be used as a checklist for itemizing the various system components.

Rice, R.R.

1983-12-01

409

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.

Chicago Children's Museum

2008-01-01

410

Station Model Plot  

NSDL National Science Digital Library

This applet provides a test of decoding station model plots. From the plot, the user must determine the temperature, dew point, wind speed and direction, cloud cover, pressure and pressure change, and current weather. Values can be checked and attempted again.

Steve Ackerman

411

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

412

International Space Station Assembly  

NASA Technical Reports Server (NTRS)

The International Space Station (ISS) is an unparalleled international scientific and technological cooperative venture that will usher in a new era of human space exploration and research and provide benefits to people on Earth. On-Orbit assembly began on November 20, 1998, with the launch of the first ISS component, Zarya, on a Russian Proton rocket. The Space Shuttle followed on December 4, 1998, carrying the U.S.-built Unity cornecting Module. Sixteen nations are participating in the ISS program: the United States, Canada, Japan, Russia, Brazil, Belgium, Denmark, France, Germany, Italy, the Netherlands, Norway, Spain, Sweden, Switzerland, and the United Kingdom. The ISS will include six laboratories and be four times larger and more capable than any previous space station. The United States provides two laboratories (United States Laboratory and Centrifuge Accommodation Module) and a habitation module. There will be two Russian research modules, one Japanese laboratory, referred to as the Japanese Experiment Module (JEM), and one European Space Agency (ESA) laboratory called the Columbus Orbital Facility (COF). The station's internal volume will be roughly equivalent to the passenger cabin volume of two 747 jets. Over five years, a total of more than 40 space flights by at least three different vehicles - the Space Shuttle, the Russian Proton Rocket, and the Russian Soyuz rocket - will bring together more than 100 different station components and the ISS crew. Astronauts will perform many spacewalks and use new robotics and other technologies to assemble ISS components in space.

1999-01-01

413

Buying Station Survey Owner: ________________________________  

E-print Network

for the site? Yes No DK Do employees shower before leaving the site? Yes No DK Does this site every Are other locations linked to this site by animal movements (other buying stations, sorting barns, etc Incineration Landfill Disease Symptoms/Surveillance: Have you observed any signs of diarrhea? Do you

Blanchette, Robert A.

414

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

415

International Space Station Water Balance Operations  

NASA Technical Reports Server (NTRS)

In November 2008, the Water Regenerative System racks were launched aboard Space Shuttle flight, STS-126 (ULF2) and installed and activated on the International Space Station (ISS). These racks, consisting of the Water Processor Assembly (WPA) and Urine Processor Assembly (UPA), completed the installation of the Regenerative (Regen) Environmental Control and Life Support Systems (ECLSS), which includes the Oxygen Generation Assembly (OGA) that was launched 2 years prior. With the onset of active water management on the US segment of the ISS, a new operational concept was required, that of water balance . In November of 2010, the Sabatier system, which converts H2 and CO2 into water and methane, was brought on line. The Regen ECLSS systems accept condensation from the atmosphere, urine from crew, and processes that fluid via various means into potable water, which is used for crew drinking, building up skip-cycle water inventory, and water for electrolysis to produce oxygen. Specification (spec) rates of crew urine output, condensate output, O2 requirements, toilet flush water, and drinking needs are well documented and used as the best guess planning rates when Regen ECLSS came online. Spec rates are useful in long term planning, however, daily or weekly rates are dependent upon a number of variables. The constantly changing rates created a new challenge for the ECLSS flight controllers, who are responsible for operating the ECLSS systems onboard ISS from Mission Control in Houston. This paper reviews the various inputs to water planning, rate changes, and dynamic events, including but not limited to: crew personnel makeup, Regen ECLSS system operability, vehicle traffic, water storage availability, and Carbon Dioxide Removal Assembly (CDRA), Sabatier, and OGA capability. Along with the inputs that change the various rates, the paper will review the different systems, their constraints, and finally the operational challenges and means by which flight controllers manage this new concept of "water balance."

Tobias, Barry; Garr, John D., II; Erne, Meghan

2011-01-01

416

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

417

Revised analyses of decommissioning for the reference pressurized Water Reactor Power Station. Volume 2, Effects of current regulatory and other considerations on the financial assurance requirements of the decommissioning rule and on estimates of occupational radiation exposure: Appendices, Final report  

SciTech Connect

With the issuance of the final Decommissioning Rule (July 27, 1998), 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 1978 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.

1995-11-01

418

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

419

Assessing the effectiveness of bait stations for controlling California ground squirrels ( Spermophilus beecheyi)  

Microsoft Academic Search

Bait stations are frequently used in wildlife management programs; however, social factors of the target population as well as the design and placement of bait stations may limit their effectiveness and in some cases result in individuals consuming excessive amounts of bait. We conducted field trials to evaluate the effectiveness of bait stations for delivering a first-generation anticoagulant (diphacinone

Desley A. Whisson; Terrell P. Salmon

2009-01-01

420

Routing trains through a railway station based on a node packing model  

Microsoft Academic Search

In this paper, we describe the problem of routing trains through a railway station. This routing problem is a subproblem of the automatic generation of timetables for the Dutch railway system. The problem of routing trains through a railway station is the problem of assigning each of the involved trains to a route through the railway station, given the detailed

Peter J. Zwaneveld; Leo G. Kroon; Stan P. M. van Hoesel

2001-01-01

421

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 Districts 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

422

International Space Station: Testing times  

Microsoft Academic Search

Preparing astronauts for a journey to the red planet has become NASA's research priority for the International Space Station. But such experiments will need more than the skeleton crew now running the station. Tony Reichhardt reports.

Tony Reichhardt

2005-01-01

423

Environmental Education Station  

NSDL National Science Digital Library

The Environmental Education Station functions primarily as a portal to environmental information on the Internet. Offered through Centre College and University of the South, this Web site contains an excellent collection of links to detailed information on various environmental topics, including global warming, environmental audits, land reclamation, biodiversity, and more. The Environmental Education Station also includes a fairly extensive index of syllabi and readings for environmental science courses in universities across the U.S. Readers will find lectures, interactive resources, and other materials under the Miscellaneous heading in the Teaching Materials section. The site also offers a public domain image gallery, which could be of use in putting together lectures, presentations, and the like.

424

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

425

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.

426

Space station propulsion  

NASA Technical Reports Server (NTRS)

Two propulsion systems have been selected for the space station: gaseous H/O rockets for high thrust applications and the multipropellant resistojets for low thrust needs. These two thruster systems integrate very well with the fluid systems on the space station, utilizing waste fluids as their source of propellant. The H/O rocket will be fueled by electrolyzed water and the resistojets will use waste gases collected from the environmental control system and the various laboratories. The results are presented of experimental efforts with H/O and resistojet thrusters to determine their performance and life capability, as well as results of studies to determine the availability of water and waste gases.

Jones, Robert E.; Morren, W. Earl; Sovey, James S.; Tacina, Robert R.

1987-01-01

427

Space Station MMOD Shielding  

NASA Technical Reports Server (NTRS)

This paper describes International Space Station (ISS) shielding for micrometeoroid orbital debris (MMOD) protection, requirements for protection, and the technical approach to meeting requirements. Current activities in MMOD protection for ISS will be described, including efforts to augment MMOD protection by adding shields on-orbit. Observed MMOD impacts on ISS elements such as radiators, modules and returned hardware will be described. Comparisons of the observed damage with predicted damage using risk assessment software will be made.

Christiansen, Eric

2006-01-01

428

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.

2014-09-18

429

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.

430

TOGA Meteorological Station Network  

NASA Astrophysics Data System (ADS)

In support of the Tropical Ocean Global Atmosphere (TOGA) program, a series of remote satellite-reporting meteorological stations is being deployed along the coast of South America and on equatorial islands across the Pacific Ocean. The locations of present and planned installations are shown in Table 1. The program is funded by the National Oceanic and Atmospheric Administration (NOAA), and activity is centered in NOAA's Pacific Marine Environmental Laboratory (PMEL), Seattle, Wash.

Reynolds, Michael; Enfield, David; Milburn, Hugh; Galasso, George; Williams, Tim

431

Radiological assessment for Space Station Freedom  

SciTech Connect

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, G.D.; Hardy, A.C.; Robbins, D.E.; Atwell, W.

1993-01-01

432

Microscope Imaging Station  

NSDL National Science Digital Library

The Exploratorium in San Francisco continue to break new and intriguing ground with their latest online project, the Microscope Imaging Station. The actual physical Station resides at their museum, and was opened in 2004. Developed to complement this interactive exhibit, this online manifestation of the Station allows visitors to peer into the cells of living organisms such as sea urchins and zebrafish. The sea urchin feature is a real treat, as it is accompanied by a well-written essay on how this spiky creature may help unlock the secrets of genes, reproduction, and cancer. If that wasn't enough, the essay (as with other features on the site) includes a short video clip. The "Gallery" is definitely worth a stop as well. Here, visitors will find a wide range of high-resolution images and movies created with research-grade microscopes. Watching cells move, the fertilization process and the world of mitosis is a rather nice way to spend a few minutes, and visitors will probably want to pass the site along to friends and family.

433

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

434

Mars Desert Research Station  

NASA Astrophysics Data System (ADS)

The Mars Desert Research Station (MDRS) located in southern Utah presents an invaluable opportunity for researchers to become personally involved in the quest for the human exploration of Mars. MDRS is owned and operated by the Mars Society. Crews from across the nation and around the globe rotate in every two weeks to do a simulation of a human crew on Mars. The location and nature of the Mars Desert Research Station provide a unique opportunity for scientists from the Southwest to propose and do research pertaining to the human exploration of Mars. Being the closest major university to the research station, Brigham Young University has become a worthy asset to the Mars Society in their long-term goals for MDRS. The Mars Research Group at Brigham Young University has spent the past nine months proving their usefulness by making four trips down to the habitat to provide support whenever needed. In the upcoming year we plan to finish modifications on the habitat's greenhouse, get the habitat's new 14-inch telescope running, and provide technical briefings for incoming crews on the use of the habitat, greenhouse, and telescope.

Farnsworth, Nicole; Allred, David D.

2003-10-01

435

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

436

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.

437

Engineering assessment of TEG and TEG/FC technology growth potential. Phase I. Engineering assessment of existing thermoelectric generator technology. Final report Jun-Sep 81  

SciTech Connect

An analysis of the likely conformance of current thermoelectric generators to the Army SLEEP ROC is provided. A feasibility analysis of the thermoelectric generator as a means of providing electricity, heating and cooling to a typical mobile teletype terminal is given. Findings relative to the thermoelectric generator as a candidate for the SLEEP ROC and as a primary energy source for a teletype terminal are given.

Lee, W.D.; Long, R.G.

1981-09-01

438

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

439

Standards Applicable to Generators of Hazardous Waste; Alternative Requirements for Hazardous Waste Determination and Accumulation of Unwanted Material at Laboratories Owned by Colleges and Universities and Other Eligible Academic Entities Formally Affiliated With Colleges and Universities. Final Rule. Federal Register, Environmental Protection Agency. 40 CFR Parts 261 and 262. Part II  

ERIC Educational Resources Information Center

The Environmental Protection Agency (EPA or the Agency) is finalizing an alternative set of generator requirements applicable to laboratories owned by eligible academic entities, as defined in this final rule. The rule provides a flexible and protective set of regulations that address the specific nature of hazardous waste generation and

National Archives and Records Administration, 2008

2008-01-01

440

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

441

High speed imager test station  

DOEpatents

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 in operable proximity to level shifters for receiving the clock pulses and outputting pulses effective to clock charge from the pixels forming the FPA. Each of the clock level shifters is driven by leading and trailing edge portions of the clock pulses to reduce power dissipation in the FPA. Analog circuits receive output charge pulses clocked from the FPA pixels. The analog circuits condition the charge pulses to cancel noise in the pulses and to determine and hold a peak value of the charge for digitizing. A high speed digitizer receives the peak signal value and outputs a digital representation of each one of the charge pulses. A video system then displays an image associated with the digital representation of the output charge pulses clocked from the FPA. In one embodiment, the FPA image is formatted to a standard video format for display on conventional video equipment.

Yates, George J. (Santa Fe, NM); Albright, Kevin L. (Los Alamos, NM); Turko, Bojan T. (Moraga, CA)

1995-01-01

442

High speed imager test station  

DOEpatents

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 in operable proximity to level shifters for receiving the clock pulses and outputting pulses effective to clock charge from the pixels forming the FPA. Each of the clock level shifters is driven by leading and trailing edge portions of the clock pulses to reduce power dissipation in the FPA. Analog circuits receive output charge pulses clocked from the FPA pixels. The analog circuits condition the charge pulses to cancel noise in the pulses and to determine and hold a peak value of the charge for digitizing. A high speed digitizer receives the peak signal value and outputs a digital representation of each one of the charge pulses. A video system then displays an image associated with the digital representation of the output charge pulses clocked from the FPA. In one embodiment, the FPA image is formatted to a standard video format for display on conventional video equipment. 12 figs.

Yates, G.J.; Albright, K.L.; Turko, B.T.

1995-11-14

443

International Space Station's Integrated Equipment Assembly processed at KSC's Space Station Process  

NASA Technical Reports Server (NTRS)

The Photovoltaic Module 1 Integrated Equipment Assembly (IEA) is lowered into its workstand at Kennedy Space Center's Space Station Processing Facility (SSPF), where it will be processed for flight on STS-97, scheduled for launch in April 1999. The IEA is one of four integral units designed to generate, distribute, and store power for the International Space Station. It will carry solar arrays, power storage batteries, power control units, and a thermal control system. The 16-foot-long, 16,850-pound unit is now undergoing preflight preparations in the SSPF.

1998-01-01

444

International Space Station's Integrated Equipment Assembly processed at KSC's Space Station Process  

NASA Technical Reports Server (NTRS)

The Photovoltaic Module 1 Integrated Equipment Assembly (IEA) is lifted from its container in Kennedy Space Center's Space Station Processing Facility (SSPF) before it is moved into its workstand, where it will be processed for flight on STS-97, scheduled for launch in April 1999. The IEA is one of four integral units designed to generate, distribute, and store power for the International Space Station. It will carry solar arrays, power storage batteries, power control units, and a thermal control system. The 16-foot-long, 16,850-pound unit is now undergoing preflight preparations in the SSPF.

1998-01-01

445

International Space Station's Integrated Equipment Assembly processed at KSC's Space Station Process  

NASA Technical Reports Server (NTRS)

The Photovoltaic Module 1 Integrated Equipment Assembly (IEA) is moved past Node 1, seen at left, of the International Space Station (ISS) in Kennedy Space Center's Space Station Processing Facility (SSPF). The IEA will be processed at the SSPF for flight on STS-97, scheduled for launch in April 1999. The IEA is one of four integral units designed to generate, distribute, and store power for the ISS. It will carry solar arrays, power storage batteries, power control units, and a thermal control system. The 16-foot-long, 16,850-pound unit is now undergoing preflight preparations in the SSPF.

1998-01-01

446

International Space Station's Integrated Equipment Assembly processed at KSC's Space Station Process  

NASA Technical Reports Server (NTRS)

The Photovoltaic Module 1 Integrated Equipment Assembly (IEA) is moved past a Pressurized Mating Adapter in Kennedy Space Center's Space Station Processing Facility (SSPF) toward the workstand where it will be processed for flight on STS-97, scheduled for launch in April 1999. The IEA is one of four integral units designed to generate, distribute, and store power for the International Space Station. It will carry solar arrays, power storage batteries, power control units, and a thermal control system. The 16-foot-long, 16,850-pound unit is now undergoing preflight preparations in the SSPF.

1998-01-01

447

International Space Station's Integrated Equipment Assembly processed at KSC's Space Station Process  

NASA Technical Reports Server (NTRS)

The Photovoltaic Module 1 Integrated Equipment Assembly (IEA) is moved through Kennedy Space Center's Space Station Processing Facility (SSPF) toward the workstand where it will be processed for flight on STS-97, scheduled for launch in April 1999. The IEA is one of four integral units designed to generate, distribute, and store power for the International Space Station. It will carry solar arrays, power storage batteries, power control units, and a thermal control system. The 16-foot-long, 16,850-pound unit is now undergoing preflight preparations in the SSPF.

1998-01-01

448

International Space Station's Integrated Equipment Assembly processed at KSC's Space Station Process  

NASA Technical Reports Server (NTRS)

Workers in Kennedy Space Center's Space Station Processing Facility (SSPF) observe the Photovoltaic Module 1 Integrated Equipment Assembly (IEA) as it moves past them on its way to its workstand, where it will be processed for flight on STS-97, scheduled for launch in April 1999. The IEA is one of four integral units designed to generate, distribute, and store power for the International Space Station. It will carry solar arrays, power storage batteries, power control units, and a thermal control system. The 16-foot-long, 16,850-pound unit is now undergoing preflight preparations in the SSPF.

1998-01-01

449

Space Station power requirements and issues  

NASA Astrophysics Data System (ADS)

This paper provides an overview of the space station configuration and summarizes the requirements, architecture, and significant challenges associated with the Electrical Power System (EPS). The space station configuration was baselined during the Systems Design Review (SDR) process in March, 1994. The current configuration includes the addition of Russia as an international partner, resulting in major changes to the assembly sequence, pressurized module complement, and overall power architecture. The Russian contributions to the power system architecture, as well as an overview and development status of the US provided elements is presented. Finally, a planned flight demonstration of solar dynamic power system on the Mir as part of the first phase of US/Russian cooperation in human space flight is described.

Huckins, E.; Ahlf, P.

1994-12-01

450

Space Station solar array  

NASA Technical Reports Server (NTRS)

Space station solar array configurations and power system technologies were compared. Planar silicon arrays offer low technology risk but high weight and drag area. Concentrator arrays of silicon or gallium arsenide (preferred) promise lower cost and drag area but increase technology risk. Planar and power tower require fewer control moment gyros (CMG's). Delta is more rigid but requires more CMG's. Flexible body effects are not significant. All configurations can be assembled. Power tower is preferred for proximity operations. All configurations require 6 to 8 launches. Manned operations after two to three. All configurations can accommodate all candidate electrical power systems options.

Forestieri, A. F.

1984-01-01

451

NASA Research at Station  

NSDL National Science Digital Library

This NASA website offers information on past, present, and future projects at the International Space Station. Users can view the many experiments and facilities by time periods or topic. The research areas include bioastronautics, physical sciences, fundamental space biology, and space product development. For each experiment, students and researchers can find information on the significance of the project, descriptions of the operations, its results, and much more. The website provides flight schedules and information on facilities. Throughout the site, visitors can enjoy numerous images from space.

452

The space station integrated refuse management system  

NASA Technical Reports Server (NTRS)

The design and development of an Integrated Refuse Management System for the proposed International Space Station was performed. The primary goal was to make use of any existing potential energy or material properties that refuse may possess. The secondary goal was based on the complete removal or disposal of those products that could not, in any way, benefit astronauts' needs aboard the Space Station. The design of a continuous living and experimental habitat in space has spawned the need for a highly efficient and effective refuse management system capable of managing nearly forty-thousand pounds of refuse annually. To satisfy this need, the following four integrable systems were researched and developed: collection and transfer; recycle and reuse; advance disposal; and propulsion assist in disposal. The design of a Space Station subsystem capable of collecting and transporting refuse from its generation site to its disposal and/or recycling site was accomplished. Several methods of recycling or reusing refuse in the space environment were researched. The optimal solution was determined to be the method of pyrolysis. The objective of removing refuse from the Space Station environment, subsequent to recycling, was fulfilled with the design of a jettison vehicle. A number of jettison vehicle launch scenarios were analyzed. Selection of a proper disposal site and the development of a system to propel the vehicle to that site were completed. Reentry into the earth atmosphere for the purpose of refuse incineration was determined to be the most attractive solution.

Anderson, Loren A.

1988-01-01

453

Space station needs, attributes and architectural options study  

NASA Technical Reports Server (NTRS)

All the candidate Technology Development missions investigated during the space station needs, attributes, and architectural options study are described. All the mission data forms plus additional information such as, cost, drawings, functional flows, etc., generated in support of these mission is included with a computer generated mission data form.

1983-01-01

454

Performance and Economics of Catalytic Glow Plugs and Shields in Direct Injection Natural Gas Engines for the Next Generation Natural Gas Vehicle Program: Final Report  

Microsoft Academic Search

Subcontractor report details work done by TIAX and Westport to test and perform cost analysis for catalytic glow plugs and shields for direct-injection natural gas engines for the Next Generation Natural Gas Vehicle Program.

J. P. Mello; D. Bezaire; S. Sriramulu; R. Weber

2003-01-01

455

The Capabilities of Space Stations  

NASA Technical Reports Server (NTRS)

Over the past two years the U.S. space station program has evolved to a three-phased international program, with the first phase consisting of the use of the U.S. Space Shuttle and the upgrading and use of the Russian Mir Space Station, and the second and third phases consisting of the assembly and use of the new International Space Station. Projected capabilities for research, and plans for utilization, have also evolved and it has been difficult for those not directly involved in the design and engineering of these space stations to learn and understand their technical details. The Committee on the Space Station of the National Research Council, with the concurrence of NASA, undertook to write this short report in order to provide concise and objective information on space stations and platforms -- with emphasis on the Mir Space Station and International Space Station -- and to supply a summary of the capabilities of previous, existing, and planned space stations. In keeping with the committee charter and with the task statement for this report, the committee has summarized the research capabilities of five major space platforms: the International Space Station, the Mir Space Station, the Space Shuttle (with a Spacelab or Spacehab module in its cargo bay), the Space Station Freedom (which was redesigned to become the International Space Station in 1993 and 1994), and Skylab. By providing the summary, together with brief descriptions of the platforms, the committee hopes to assist interested readers, including scientists and engineers, government officials, and the general public, in evaluating the utility of each system to meet perceived user needs.

1995-01-01

456

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-orbit measurement and monitoring of actual acoustic levels. ISS acoustic requirements are classified by the type of hardware involved, in three categories: Modules; payloads; and Government Furnished Equipment (GFE). Current status of overall ISS acoustics for each of these hardware categories will be discussed. In addition, the following items will be discussed: examples where NASA design support has been used to aid in obtaining compliance; difficulties encountered; and areas of concern.

Goodman, Jerry

2006-01-01

457

Usuda deep space station with 64-meter-diameter antenna  

NASA Astrophysics Data System (ADS)

Institute of Space and Astronautical Science (ISAS), Japan, constructed a new deep space ground station with 64-meter-diameter antenna at Usuda-cho, Nagano, in 1984. The station has successfully operated in the tracking of "Sakigake", the first Japanese interplanetary spacecraft that ISAS launched on January 8, 1985. This paper describes the facilities and the features of the Usuda Station, the results of Sakigake tracking, as well as the features of the softwares for trajectory generation and orbit determination that we have developed for deep space missions.

Nomura, Tamiya; Hayashi, Tomonao; Nishimura, Toshimitsu; Hirosawa, Haruto; Ichikawa, Mitsuru

458

Usuda deep Space Station with 64-meter-diameter antenna  

NASA Astrophysics Data System (ADS)

Institute of Space and Astronautical Science (ISAS), Japan, constructed a new deep space ground station with 64-meter-diameter antenna at Usuda-cho, Nagano, in 1984. The station has successfully operated in the tracking of 'Sakigake', the first Japanese interplanetary spacecraft that ISAS launched on January 8, 1985. This paper describes the facilities and the features of the Usuda Station, the results of Sakigake tracking, as well as the features of the softwares for trajectory generation and orbit determination that have been developed for deep space missions.

Nomura, T.; Hayashi, T.; Nishimura, T.; Hirosawa, H.; Ichikawa, M.

1985-10-01

459

47 CFR 97.221 - Automatically controlled digital station.  

Code of Federal Regulations, 2010 CFR

...section does not apply to an auxiliary station, a beacon station, a repeater station, an earth station, a space station, or a space telecommand station. (b) A station may be automatically controlled while transmitting a RTTY or data...

2010-10-01

460

47 CFR 97.221 - Automatically controlled digital station.  

Code of Federal Regulations, 2011 CFR

...section does not apply to an auxiliary station, a beacon station, a repeater station, an earth station, a space station, or a space telecommand station. (b) A station may be automatically controlled while transmitting a RTTY or data...

2011-10-01

461

47 CFR 97.221 - Automatically controlled digital station.  

Code of Federal Regulations, 2012 CFR

...section does not apply to an auxiliary station, a beacon station, a repeater station, an earth station, a space station, or a space telecommand station. (b) A station may be automatically controlled while transmitting a RTTY or data...

2012-10-01

</