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Radiation energy conversion in spaceTopics discussed at the third NASA conference on radiant energy conversion are reviewed. The unconcentrated-photovoltaic-generation version of a solar power satellite is described, noting that it will consist of a 21.3 x 5.3-sq-km silicon-solar-cell array expected to provide 17 Gw of electrical power, with 1 km in diam transmitters oriented to beam 2.45 GHz microwave power to two receiving/rectifying 'rectennas' on earth. The Solares space-energy-system concept, designed for providing a large fraction of the world's energy needs at costs comparable to those of future coal/nuclear alternative, is considered, as are subsystems for improving the economics of the solar power satellite. A concept proposing the use of relativistic-electron-storage rings for electron-beam energy transmission and storage, and a report on the production of a high temperature plasma with concentrated solar radiation are taken into account. Laser-conversion systems, including the direct-solar-pumped space laser, and the telec-powered spacecraft, are discussed.
Document ID
19790042582
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Billman, K. W.
(NASA Ames Research Center Materials and Physical Sciences Branch, Moffet Field, Calif., United States)
Date Acquired
August 9, 2013
Publication Date
March 1, 1979
Publication Information
Publication: Astronautics and Aeronautics
Volume: 17
Subject Category
Energy Production And Conversion
Accession Number
79A26595
Distribution Limits
Public
Copyright
Other

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