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  • ENERGY PRODUCTION AND CONVERSION  (385)
  • 2010-2014
  • 1980-1984  (385)
  • 1984  (385)
  • 1
    Publication Date: 2019-08-27
    Description: The NASA Office of Aeronautical and Space Technology OAST Program in space photovoltaics is reviewed. From the perspective of national landmark mission requirements and five year and 25-year long range plans, the texture of the program is revealed. Planar silicon and concentrator GaAs array technology advances are discussed. Advances in lightweight (50 micro cell) arrays and radiation tolerance research are presented. Recent progress in cascade cells and ultralightweight GaAs planar cells is noted. Progress in raising silicon cell voltage to its theoretical maximum is detailed. Advanced concepts such as plasmon converters and the Long Duration Exposure Facility LDEF flight experiments pertaining to solar cell and array technology are also shown.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: Photovoltaic Specialists Conference; May 01, 1984 - May 04, 1984; Kissimmee, FL
    Format: text
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  • 2
    Publication Date: 2019-08-27
    Description: Reversible reactions between hydrogen and such materials as iron/titanium and magnesium/ nickel alloy may provide a means for storing hydrogen fuel. A demonstration model of an iron/titanium hydride storage bed is described. Hydrogen from the hydride storage bed powers a converted gasoline electric generator.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-TM-77453 , NAS 1.15:77453 , Dec 12, 1978 - Dec 14, 1978; Rio de Janeiro; Brazil
    Format: application/pdf
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  • 3
    Publication Date: 2019-08-13
    Description: The NASA program in photovoltaic energy conversion research is discussed. Solar cells, solar arrays, gallium arsenides, space station and spacecraft power supplies, and state of the art devices are discussed.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA. Lewis Research Center Space Photovoltaic Res. and Technol. 1983; p 1-7
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  • 4
    Publication Date: 2019-07-20
    Description: New pastes were evaluated that contained additives to aid in the silicon-to-metallization contact. None were completely successful. A reevaluation of the molybdenum oxide paste and the two-step screen printing process was done. The oxide paste did not show promise. The two-step process enabled soldering of the cells but the cells still had a high series resistance. Pastes are on order from a different manufacturer.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-CR-173959 , JPL-6329-27 , NAS 1.26:173959
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  • 5
    Publication Date: 2019-07-20
    Description: Investigations into transparent conductive polymers were begun. Polypyrrole was electrochemically deposited, but the film characteristics were poor. A proprietary polymer material supplied by Polaroid was evaluated and showed promise as a readily processable material. A method was developed for calculating the magnitude and location of the maximum electric field for the family of solar-cell-like shapes. A method for calculating the lines of force for three dimensional electric fields was developed and applied to a geometry of interest to the photovoltaic program.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-CR-173941 , DOE/JPL-955567-84/14 , JPL-9950-939 , NAS 1.26:173941 , DRL-126
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  • 6
    Publication Date: 2019-07-13
    Description: The design, development and analysis of the 7.3 MW MOD-5A wind turbine generator is documented. There are four volumes. This volume contains the drawings and specifications that were developed in preparation for building the MOD-5A wind turbine generator. Detail drawings of several assemblies and subassemblies are given. This is the fifth book of volume 4.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-CR-174735-VOL-4-BK-5 , DOE/NASA/0153-VOL-4-BK-5 , NAS 1.26:174735-VOL-4-BK-5 , DOC-84AEPD004-VOL-4-BK-5
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  • 7
    Publication Date: 2019-07-13
    Description: The design, development and analysis of the 7.3 MW MOD-5A wind turbine generator are documented. There are four volumes. This volume contains the drawings and specifications that were developed in preparation for building the MOD-5A wind turbine generator. This volume contains 5 books of which this is the fourth, providing drawings 47A380128 through 47A387125. In addition to the parts listing and where-used list, the logic design of the controller software and the code listing of the controller software are provided. Also given are the aerodynamic profile coordinates.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-CR-174735-VOL-4-BK-4 , DOE/NASA/0153-VOL-4-BK-4 , NAS 1.26:174735-VOL-4-BK-4 , DOC-84AEPD004-VOL-4-BK-4
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  • 8
    Publication Date: 2019-07-13
    Description: The design, development and analysis of the 7.3 MW MOD-5A wind turbine generator is documented. This volume contains the drawings and specifications developed for the final design. This volume is divided into 5 books of which this is the third, containing drawings 47A380074 through 47A380126. A full breakdown parts listing is provided as well as a where used list.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-CR-174735-VOL-4-BK-3 , DOE/NASA/0153-VOL-4-BK-3 , NAS 1.26:174735-VOL-4-BK-3 , DOC-84AEPD004-VOL-4-BK-3
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  • 9
    Publication Date: 2019-07-13
    Description: The design, development and analysis of the 7.3 MW MOD-5A wind turbine generator is documented. There are four volumes. This volume contains the drawings and specifications that were developed in preparation for building the MOD-5A wind turbine generator. This is the second book of volume four. Some of the items it contains are specs for the emergency shutdown panel, specs for the simulator software, simulator hardware specs, site operator terminal requirements, control data system requirements, software project management plan, elastomeric teeter bearing requirement specs, specs for the controls electronic cabinet, and specs for bolt pretensioning.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-CR-174735-VOL-4-BK-2 , DOE/NASA/0153-VOL-4-BK-2 , NAS 1.26:174735-VOL-4-BK-2 , DOC-84AEPD004-VOL-4-BK-2
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  • 10
    Publication Date: 2019-07-13
    Description: The design, development and analysis of the 7.3 MW MOD-5A wind turbine generator is documented. Volume 4 contains the drawings and specifications that were developed in preparation for building the MOD-5A wind turbine generator. This is the first of five books of volume four. It contains structural design criteria, generator step-up transformer specs, specs for design, fabrication and testing of the system, specs for the ground control enclosure, systems specs, slip ring specs, and control system specs.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-CR-174735-VOL-4-BK-1 , DOE/NASA/0153-VOL-4-BK-1 , NAS 1.26:174735-VOL-4-BK-1 , DOC-84AEPD004-VOL-4-BK-1
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