Temperature Control of Line-Focus Solar Collectors

[+] Author and Article Information
J. D. Wright

Solar Energy Research Institute, Golden, Colo. 80401

M. Masterson

Masterson and Company, Worcester, Mass. 01603

J. Sol. Energy Eng 105(2), 194-199 (May 01, 1983) (6 pages) doi:10.1115/1.3266365 History: Received July 10, 1982; Online November 11, 2009


Solar thermal electric power and industrial process heat systems may require a constant outlet temperature from the collector. This temperature may be efficiently maintained by adjusting the circulating fluid flow rate. Using frequency response techniques, simple relations are developed which relate controller tuning constants to collector construction and field layout. Successful controller tuning is shown to be a compromise between good response at high flow rates and stability at low flow rates. The rules of thumb are then tested by performing dynamic numerical simulations of a collector row with flow rate control.

Copyright © 1983 by ASME
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