800 Hours Of Operational Experience From A 2 Kwsub E Solar Dynamic System Nasa Tm 1999 208840 Mar 1 1999

Author : National Aeronautics and Space Adm Nasa
Publisher : Independently Published
ISBN 13 : 9781723996801
Total Pages : 26 pages
Book Rating : 4.9/5 (968 download)

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Download or read book 800 Hours of Operational Experience from a 2 Kw(sub E) Solar Dynamic System written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-09-24 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: From December 1994 to September 1998, testing with a 2 kW(sub e) Solar Dynamic power system resulted in 33 individual tests, 886 hours of solar heating, and 783 hours of power generation. Power generation ranged from 400 watts to over 2 kW(sub e), and SD system efficiencies have been measured up to 17 per cent, during simulated low-Earth orbit operation. Further, the turbo-alternator-compressors successfully completed 100 start/stops on foil bearings. Operation was conducted in a large thermal/vacuum facility with a simulated Sun at the NASA Lewis Research Center. The Solar Dynamic system featured a closed Brayton conversion unit integrated with a solar heat receiver, which included thermal energy storage for continuous power output through a typical low-Earth orbit. Two power conversion units and three alternator configurations were used during testing. This paper will review the test program, provide operational and performance data, and review a number of technology issues. Shaltens, Richard K. and Mason, Lee S. Glenn Research Center NASA/TM-1999-208840, E-11452, NAS 1.15:208840