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Title: Radiation energy conversion in space

Journal Article · · Astronaut. Aeronaut.; (United States)
OSTI ID:5779376

Topics 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.

Research Organization:
NASA, Ames Research Center, Materials and Physical Sciences Branch, Moffet Field, Calif.
OSTI ID:
5779376
Journal Information:
Astronaut. Aeronaut.; (United States), Vol. 17
Country of Publication:
United States
Language:
English