Computer Science – Performance
Scientific paper
Jan 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aipc..458.1564m&link_type=abstract
Space technology and applications international forum -1999. AIP Conference Proceedings, Volume 458, pp. 1564-1569 (1999).
Computer Science
Performance
Performance Characteristics Of Energy Conversion Systems, Figure Of Merit, Thermoelectric, Electrogasdynamic And Other Direct Energy Conversion
Scientific paper
In accordance with NASA's slogan: ``Better, Cheaper, Faster,'' this paper will address potential improvements to SiGe RTG technology to make them Better. RTGs are doubtless cheaper than ``paper designs'' which are better and cheaper until development, performance and safety test costs are considered. RTGs have the advantage of being fully developed and tested in the rigors of space for over twenty years. Further, unless a new system can be accelerated tested, as were the RTGs, they cannot be deployed reliably unless a number of systems have succeeded for test periods exceeding the mission lifetime. Two potential developments are discussed that can improve the basic RTG performance by 10 to 40+% depending on the mission profile. These improvements could be demonstrated in years. Accelerated testing could also be performed in this period to preserve existing RTG reliability. Data from a qualification tested RTG will be displayed, while not definitive, to support the conclusions. Finally, it is anticipated that other investigators will be encouraged to suggest further modifications to the basic RTG design to improve its performance.
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