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A space-based combined thermophotovoltaic electric generator and gas laser solar energy conversion systemThis paper describes a spaceborne energy conversion system consisting of a thermophotovoltaic electric generator and a gas laser. As a power source for the converson, the system utilizes an intermediate blackbody cavity heated to a temperature of 2000-2400 K by concentrated solar radiation. A double-layer solar cell of GaAs and Si forms a cylindrical surface concentric to this blackbody cavity, receiving the blackbody radiation and converting it into electricity with cell conversion efficiency of 50 percent or more. If the blackbody cavity encloses a laser medium, the blackbody radiation can also be used to simultaneously pump a lasing gas. The feasibility of blackbody optical pumping at 4.3 microns in a CO2-He gas mixture was experimentally demonstrated.
Document ID
19900040658
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Yesil, Oktay
(Boeing Co. Seattle, WA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Publication Information
Publication: Space Power
Volume: 8
Issue: 4 19
ISSN: 0883-6272
Subject Category
Energy Production And Conversion
Report/Patent Number
IAF PAPER ICOSP89-7-5
Accession Number
90A27713
Funding Number(s)
CONTRACT_GRANT: NGL-48-002-004
Distribution Limits
Public
Copyright
Other

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