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  • ENERGY PRODUCTION AND CONVERSION
  • Fisheries
  • 2015-2019
  • 1985-1989  (283)
  • 1975-1979
  • 1985  (283)
Collection
Keywords
Years
  • 2015-2019
  • 1985-1989  (283)
  • 1975-1979
Year
  • 1
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    Electricity from photovoltaic solar cells. Flat-Plate Solar Array Project of the US Department of Energy's National Photovoltaics Program: 10 years of progress (1985)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: The objectives were to develop the flat-plate photovoltaic (PV) array technologies required for large-scale terrestrial use late in the 1980s and in the 1990s; advance crystalline silicon PV technologies; develop the technologies required to convert thin-film PV research results into viable module and array technology; and to stimulate transfer of knowledge of advanced PV materials, solar cells, modules, and arrays to the PV community. Progress reached on attaining these goals, along with future recommendations are discussed.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-TM-89653 , NAS 1.15:89653
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    Solar energy and the aeronautics industry (1985)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: An introduction to the physical aspects of solar energy, incidental energy and variations in solar flux is presented, along with an explanation of the physical principles of obtaining solar energy. The history of the application of solar energy to aeronautics, including the Gossamer Penguin and the Solar Challenger is given. Finally, an analysis of the possibilities of using a reaction motor with hybrid propulsion combining solar energy with traditional fuels as well as calculations of the proposed cycle and its mode of operation are given.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-TM-77957 , NAS 1.15:77957
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Monolithic cascade-type solar cells (1985)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: Solar cells consist of a semiconductor base, a bottom cell with a band-gap energy of E1, and a top cell with a band-gap energy of E2, and 0.96 E1 1.36 eV and (0.80 E + 0.77) eV E2 (0.80 E1 + 0.92) eV. A monolithic cascade-type solar cell was prepared with an n(+)-type GaAs base, a GaInAs bottom solar cell, and a GaAiInAs top solar cell. The surface of the cell is coated with a SiO antireflection film. The efficiency of the cell is 32%.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-TM-77926 , NAS 1.15:77926
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    Development of media for dynamic latent heat storage for the low-temperature range. Part 1: Thermal analyses of selected salt hydrate systems (1985)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: Phase change temperatures and phase change enthalpies of seventeen salt hydrates, three double salts, and four eutectics were measured thermodynamically and the results reported herein. Good results were obtained, especially for congruently melting salt hydrates. Incongruently melting salt hydrates appear less suitable for heat storage applications. The influence of the second phase - water, acid and hydroxide - to the latent heat is described. From these results, basic values of the working temperatures and storage capabilities of various storage media compositions may be derived.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-TM-77778 , NAS 1.15:77778 , DFVLR-FB-84-03-PT-1
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    Thermal deformation of concentrators in an axisymmetric temperature field (1985)
    In:  CASI
    Details
    Publication Date: 2019-08-27
    Description: Axisymmetric thermal deformations of paraboloid mirrors, due to heating, are examined for a mirror with a optical axis oriented toward the Sun. A governing differential equation is derived using Mushtari-Donnel-Vlasov simplifications, and a solution is presented which makes it possible to determine the principal deformation characteristics.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-TM-77935 , NAS 1.15:77935
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 6
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    Development of large wind energy power generation system (1985)
    In:  CASI
    Details
    Publication Date: 2019-08-27
    Description: The background and development of an experimental 100 kW wind-energy generation system are described, and the results of current field tests are presented. The experimental wind turbine is a two-bladed down-wind horizontal axis propeller type with a 29.4 m diameter rotor and a tower 28 m in height. The plant was completed in March, 1983, and has been undergoing trouble-free tests since then. The present program calls for field tests during two years from fiscal 1983 to 1984. The development of technologies relating to the linkage and operation of wind-energy power generation system networks is planned along with the acquisition of basic data for the development of a large-scale wind energy power generation system.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-TM-77779 , NAS 1.15:77779
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 7
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    Photovoltaic-Powered Vaccine Refrigerator: Freezer Systems Field Test Results (1985)
    In:  CASI
    Details
    Publication Date: 2019-08-14
    Description: A project to develop and field test photovoltaic-powered refrigerator/freezers suitable for vaccine storage was undertaken. Three refrigerator/freezers were qualified; one by Solar Power Corp. and two by Solvolt. Follow-on contracts were awarded for 19 field test systems and for 10 field test systems. A total of 29 systems were installed in 24 countries between October 1981 and October 1984. The project, systems descriptions, installation experiences, performance data for the 22 systems for which field test data was reported, an operational reliability summary, and recommendations relative to system designs and future use of such systems are explained. Performance data indicate that the systems are highly reliable and are capable of maintaining proper vaccine storage temperatures in a wide range of climatological and user environments.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-TM-86972-REV , E-2498 , DOE/NASA/20485-18 , NAS 1.15:86972-REV , PB87-156006
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 8
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    Pulsed Excimer Laser Processing for Cost-Effective Solar Cells (1985)
    In:  CASI
    Details
    Publication Date: 2019-08-14
    Description: Residual lattice damage by 5 keV ion implantation and surface flaws induced by wafer cleaning are proven to affect the V sub oc more adversely for laser annealed cells than conventional thermal diffusion. However, an alternative, molecular implantation of molecular species holds potential. The first experimental results are encouraging. The lack of a commercially available mass analyzed implantation with low energy, high fluence ions is constraining.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-CR-175700 , DOE/JPL-956831-3 , JPL-9950-1035 , NAS 1.26:175700 , DRL-216 , DRD-SE-3 , QR-3
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 9
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    Studies of the nature of interfacial barriers in high efficiency crystalline silicon solar cells (1985)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The effects of interfacial barriers in crystalline silicon solar cells were studied. The effort was directed toward the investigation and use of such techniques as Angular Resolved Parameter Spectroscopy (ARAPS) and Impedance Spectroscopy in initially characterizing n-type Si doped to levels commonly used for n+p solar cells, and eventually Si solar cells. The objectives of the research are given. Those accomplished are detailed, as are recommendations for future work.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-CR-181085 , JPL-9950-1257 , DOE/JPL-956960-1 , NAS 1.26:181085 , DRL-217
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 10
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    Pulsed excimer laser processing for cost-effective solar cells (1985)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The application of excimer laser in the fabrication of photovoltaic devices was investigated extensively. Processes included junction formation, laser assisted chemical vapor deposition metallization, and laser assisted chemical vapor deposition surface passivation. Results demonstrated that implementation of junction formation by laser annealing in production is feasible because of excellent control in junction depth and quality. Both metallization and surface passivation, however, were found impractical to be considered for manufacturing at this stage.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-CR-180528 , DOE/JPL-956831-81/1 , JPL-9950-1232 , NAS 1.26:180528 , DRL-216 , DRD-SE-4 , FR-1
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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