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  • Documentation and Information Science  (2)
  • ENERGY PRODUCTION AND CONVERSION  (2)
  • 2020-2022
  • 2000-2004  (2)
  • 1985-1989  (2)
  • 1980-1984
  • 1940-1944
  • 1
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    Sodium sulfur battery flight experiment definition study (1989)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: Sodium-sulfur batteries were identified as the most likely successor to nickel-hydrogen batteries for space applications. One advantage of the Na/S battery system is that the usable specific energy is two to three times that of nickel-hydrogen batteries. This represents a significant launch cost savings or increased payload mass capabilities. Sodium-sulfur batteries support NASA OAST's proposed Civil Space Technology Initiative goal of a factor of two improvement in spacecraft power system performance, as well as the proposed Spacecraft 2000 initiative. The sodium-sulfur battery operates at between 300 and 400 C, using liquid sodium and sulfur/polysulfide electrodes and solid ceramic electrolyte. The transport of the electrode materials to the surface of the electrolyte is through wicking/capillary forces. These critical transport functions must be demonstrated under actual microgravity conditions before sodium-sulfur batteries can be confidently utilized in space. Ford Aerospace Corporation, under contract to NASA Lewis Research Center, is currently working on the sodium-sulfur battery space flight experiment definition study. The objective is to design the experiment that will demonstrate operation of the sodium-sulfur battery/cell in the space environment with particular emphasis on evaluation of microgravity effects. Experimental payload definitions were completed and preliminary designs of the experiment were defined.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA, Lewis Research Center, Space Electrochemical Research and Technology Conference: Abstracts; p 36
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    Sodium-sulfur battery flight experiment definition study (1989)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: NaS batteries have been identified as the most likely successor to space Ni-H2 or Ni-Cd batteries, primarily due to a mass reduction by a factor 2 to 3 over Ni-H2 and by a factor of 4 over Ni-Cd. This yields major launch cost reductions or payload mass improvements. NaS batteries support NASA OAST's proposed Civil Space Technology Initiative goal of a factor of two improvement in spacecraft 2000 initiative. Since Ni-H2 and Ni-Cd batteries have been space flight proven, it is essential to have the flight experiment to establish a national space technology base to demonstrate the operation of the NaS battery for space applications.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA, Lewis Research Center, Space Electrochemical Research and Technology (SERT), 1989; p 297-30
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    The 2003 Goddard Rocket Replica Project (2003)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: A group of volunteers from Marshall Space Flight Center using information and records available,construct a working, flying replica of Robert Goddard's 1926 liquid rocket as well as accurate static display version. Document the effort for posterity.
    Keywords: Documentation and Information Science
    Type: AIAA Joint Propulsion Conference; Jul 21, 2003; Huntsville, AL; United States
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Using Knowledge-Based Systems to Support Learning of Organizational Knowledge: A Case Study (2003)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: This paper describes the deployment of a knowledge system to support learning of organizational knowledge at the Jet Propulsion Laboratory (JPL), a US national research laboratory whose mission is planetary exploration and to 'do what no one has done before.' Data collected over 19 weeks of operation were used to assess system performance with respect to design considerations, participation, effectiveness of communication mechanisms, and individual-based learning. These results are discussed in the context of organizational learning research and implications for practice.
    Keywords: Documentation and Information Science
    Type: Hawaii International Conference on System Sciences (HICSS-36); Jan 06, 2003 - Jan 09, 2003; Big Island, HI; United States
    Format: text
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    NASA TECHNICAL REPORTS
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