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  • 1
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    A review of test results on solar thermal power modules with dish-mounted Stirling and Brayton cycle engines (1988)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: This paper presents results of development tests of various solar thermal parabolic dish modules and assemblies that used dish-mounted Brayton or Stirling cycle engines for production of electric power. These tests indicate that early modules achieve net efficiencies up to 29 percent in converting sunlight to electricity, as delivered to the grid. Various equipment deficiencies were observed and a number of malfunctions occurred. The performance measurements, as well as the malfunctions and other test experience, provided information that should be of value in developing systems with improved performance and reduced maintenance.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: ASME, Transactions, Journal of Solar Energy Engineering (ISSN 0199-6231); 110; 268-274
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    A review of test results on parabolic dish solar thermal power modules with dish-mounted Rankine engines and for production of process steam (1988)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: This paper presents results of development testing of various solar thermal parabolic dish modules and assemblies. Most of the tests were at modules and assemblies that used a dish-mounted, organic Rankine cycle turbine for production of electric power. Some tests were also run on equipment for production of process steam or for production of electricity using dish-mounted reciprocating steam engines. These tests indicate that early modules achieve efficiencies of about 18 percent in converting sunlight to electricity (excluding the inverter but including parasitics). A number of malfunctions occurred. The performance measurements, as well as the malfunctions and other operating experience, provided information that should be of value in developing systems with improved performance and reduced maintenance.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: ASME, Transactions, Journal of Solar Energy Engineering (ISSN 0199-6231); 110; 275-281
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Test results on parabolic dish concentrators for solar thermal power systems (1989)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: This paper presents results of development testing of various solar thermal parabolic dish concentrators. The concentrators were mostly designed for the production of electric power using dish-mounted Rankine, Brayton or Stirling cycle engines, intended to be produced at low cost. Measured performance for various dishes included optical efficiencies ranging from 0.32 to 0.86 at a geometric concentration ratio of 500, and from about 0.09 to 0.85 at a geometric concentration ratio of 3000. Some malfunctions were observed. The tests should provide operating information of value in developing concentrators with improved performance and reduced maintenance.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: Solar Energy (ISSN 0038-092X); 42; 2, 19; 173-187
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    BMDO photovoltaics program overview (1994)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: This is an overview of the Ballistic Missile Defense Organization (BMDO) Photovoltaic Program. Areas discussed are: (1) BMDO advanced Solar Array program; (2) Brilliant Eyes type satellites; (3) Electric propulsion; (4) Contractor Solar arrays; (5) Iofee Concentrator and Cell development; (6) Entech linear mini-dome concentrator; and (7) Flight test update/plans.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Lewis Research Center, Proceedings of the 13th Space Photovoltaic Research and Technology Conference (SPRAT 13); p 13-21
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    NASA TECHNICAL REPORTS
  • 5
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    Converting environmental wastes into valuable resources (1993)
    In:  CASI
    Details
    Publication Date: 2014-08-29
    Description: This concept employs a viable energy saving method that uses a solvent to separate oil from particle matter; it can be used in metal forming industries to deoil sludges, oxides, and particle matter that is presently committed to landfill. If oily particles are used in their oily state, severe consequences to environmental control systems such as explosions or filter blinding, occur in the air handling equipment. This is due to the presence of hydrocarbons in the stack gasses resulting from the oily particles. After deoiling, the particles can be recycled and the separated oil can be used as a fuel. The process does not produce a waste of it's own and does not harm air or water. It demonstrates the dual benefits of it being commercially viable and in the national interest of conserving resources.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA, Washington, Technology 2002: The Third National Technology Transfer Conference and Exposition, Volume 1; p 118-120
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    NASA TECHNICAL REPORTS
  • 6
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    Photovoltaic mission analysis (1978)
    In:  Other Sources
    Details
    Publication Date: 2011-08-17
    Description: Photovoltaic analysis was used to support the planning, development, and guidance of the National Photovoltaic program. The analysis identified and evaluated: (1) photovoltaic applications likely to have major energy impact; (2) appropriate strategies for stimulating the growth of photovoltaic markets; and (3) critical issues, define scope of subsequent examinations.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: OAO Corp. Proc. of the US DOE Photovoltaics Technol. Develop. and Appl. Program Rev.; p 1-1 - 1-15
    Format: text
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    NASA TECHNICAL REPORTS
  • 7
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    Photovoltaic system (1975)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: The evaluation methodology is outlined for conceptual design and systems analysis on photovoltaic solar energy cells to provide electric power supplies in terrestrial applications at economic costs.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: Proc. of the 1st ERDA Semiann. Solar Photovoltaic Conversion Program Conf.; p 24-55
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    NASA TECHNICAL REPORTS
  • 8
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    Automated construction of lightweight, simple, field-erected structures (1980)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: The feasibility of automation of construction processes which could result in mobile construction robots is examined. The construction of a large photovoltaic power plant with a peak power output of 100 MW is demonstrated. The reasons to automate the construction process, a conventional construction scenario as the reference for evaluation, and a list of potential cost benefits using robots are presented. The technical feasibility of using robots to construct SPS ground stations is addressed.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA, Washington The Final Proc. of the Solar Power Satellite Program Rev.; p 324-327
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    NASA TECHNICAL REPORTS
  • 9
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    PV large systems project (1982)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: Near term photovoltaic central-station markets are analyzed. Cost effectiveness of photovoltaic plants is determined in terms of reduction of oil consumption. The breakeven photovoltaic system cost vs oil-steam power generation is given. The value of photovoltaic power plants in Southern California and in Los Angelos is given in terms of fuel savings and capacity value. The potential value of third party financing, facilitated by Federal and state tax incentives is analyzed.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: JPL Flat Plate Solar Array Proj.: Proc. of the 20th Proj. Integration Meeting; p 113-122
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 10
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    The design of low cost structures for extensive ground arrays (1980)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: The development of conceptual designs of solar array support structures and their foundations including considerations of the use of concrete, steel, aluminum, or timber are reported. Some cost trends were examined by varying selected parameters to determine optimum configurations. Detailed civil/structural design criteria were developed. Using these criteria, eight detailed designs for support structures and foundations were developed and cost estimates were made. As a result of the study wind was identified as the major loading experienced by these low height structures, whose arrays are likely to extend over large tracts of land. Proper wind load estimating is considered essential to developing realistic structural designs and achieving minimum cost support structures. Wind tunnel testing of a conceptual array field was undertaken and some of the resulting wind design criteria are presented. The SPS rectenna system designs may be less sensitive to wind load estimates, but consistent design criteria remain important.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA, Washington The Final Proc. of the Solar Power Satellite Program Rev.; p 185-188
    Format: application/pdf
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