Buffer Thermal Energy Storage for a Solar Brayton Engine

[+] Author and Article Information
H. J. Strumpf, K. P. Barr

AiResearch Manufacturing Company, A Division of The Garrett Corporation, Torrance, Calif. 90509

J. Sol. Energy Eng 105(2), 142-148 (May 01, 1983) (7 pages) doi:10.1115/1.3266357 History: Received March 02, 1982; Online November 11, 2009


A study has been completed on the application of latent-heat buffer thermal energy storage to a point-focusing solar receiver equipped with an air Brayton engine. To aid in the study, a computer program was written for complete transient/steady-state Brayton cycle performance. The results indicated that thermal storage can afford a significant decrease in the number of engine shutdowns as compared to operating without thermal storage. However, the number of shutdowns does not continuously decrease as the storage material weight increases. In fact, there appears to be an optimum weight for minimizing the number of shutdowns.

Copyright © 1983 by ASME
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