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Record Details

Record 47 of 51855
A space-based combined thermophotovoltaic electric generator and gas laser solar energy conversion system
Author and Affiliation:
Yesil, Oktay(Boeing Co., Seattle, WA, United States)
Abstract: This 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.
Publication Date: Jan 01, 1989
Document ID:
19900040658
(Acquired Nov 28, 1995)
Accession Number: 90A27713
Subject Category: ENERGY PRODUCTION AND CONVERSION
Report/Patent Number: IAF PAPER ICOSP89-7-5
Document Type: Journal Article
Publication Information: Space Power (ISSN 0883-6272); 8; 4, 19
Publisher Information: United Kingdom
Contract/Grant/Task Num: NGL-48-002-004
Financial Sponsor: NASA; United States
Organization Source: Boeing Co.; Seattle, WA, United States
Description: 15p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: ENERGY CONVERSION EFFICIENCY; PHOTOVOLTAIC CELLS; SOLAR ENERGY CONVERSION; SOLAR GENERATORS; SPACECRAFT POWER SUPPLIES; BLACK BODY RADIATION; CARBON DIOXIDE LASERS; CASSEGRAIN OPTICS; ELECTRIC GENERATORS; GAS LASERS; THERMOPHOTOVOLTAIC CONVERSION
Imprint And Other Notes: (IAF, International Conference on Space Power, Cleveland, OH, June 5-7, 1989) Space Power (ISSN 0883-6272), vol. 8, no. 4, 1989, p. 493-507.
Availability Source: Other Sources
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