Computer Science – Performance
Scientific paper
Sep 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991asei.conft....h&link_type=abstract
AIAA, NASA, and OAI, Conference on Advanced SEI Technologies, Cleveland, OH, Sept. 4-6, 1991. 10 p.
Computer Science
Performance
Brayton Cycle, Electric Power Supplies, Lunar Bases, Nuclear Electric Power Generation, Nuclear Reactors, Stirling Cycle, Energy Conversion Efficiency, Reactor Safety, Systems Integration
Scientific paper
An integration study was performed by coupling an SP-100 reactor to either a Brayton or Stirling power conversion subsystem. The application was for a surface power system to supply power requirements to a lunar base. A power level of 550 kWe was selected based on the NASA Space Exploration Initiative 90-day study. Reliability studies were initially performed to determine optimum power-conversion redundancy. This study resulted in selecting three operating engines and one standby unit. Integratiaon-design studies indicated that either the Brayton or Stirling power conversion subsystem could be integrated with the SP-100 reactor. The Stirling system had an integration advantage because of smaller piping size and fewer components. The Stirling engine, however, is more complex and heavier than the Brayton rotating unit, which tends to offset the Stirling integration advantage. From a performance consideration, the Brayton had a 9-percent mass advantage and the Stirling a 50-percent radiator-area advantage.
Durand Richard E.
Harty Richard B.
Mason Lee S.
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