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New options for satellite power systems /SPS/The operation of a satellite power system (SPS) involves the conversion of solar energy into electrical energy with the aid of facilities carried by a geosynchronous satellite, the transmission of the obtained energy to earth in the form of microwave radio frequency energy, and the conversion of the energy received on earth into dc current for distribution into the network. Attention is given to questions concerning suitable microwave radiation density, details of space transportation for the construction of the SPS, and suitable approaches for the transformation of the solar energy into electric energy. It appears that a Rankine cycle using cesium as the main working fluid and a steam bottoming cycle might have advantages over a Brayton cycle concept considered earlier. In the area of solar photovoltaic concepts GaAlAs cells have advantages over silicon cells related to lighter weight, efficiency, and resistance to space radiation. The required amount of gallium seems to become available.
Document ID
19770060540
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hanley, G. M.
(Rockwell International Corp. Space Div., Downey, Calif., United States)
Date Acquired
August 9, 2013
Publication Date
August 1, 1977
Subject Category
Launch Vehicles And Space Vehicles
Report/Patent Number
AIAA PAPER 77-1028
Meeting Information
Meeting: Conference on New Options in Energy Technology
Location: San Francisco, CA
Country: US
Start Date: August 2, 1977
End Date: August 4, 1977
Sponsors: EEI, AIAA, IEEE
Accession Number
77A43392
Funding Number(s)
CONTRACT_GRANT: NAS8-32475
Distribution Limits
Public
Copyright
Other

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