Effect of the Cycling Rate on Energy Collection for Bang-Bang Controllers

[+] Author and Article Information
G. Kahwaji, C. B. Winn

Department of Mechanical Engineering, Colorado State University, Fort Collins, CO 80523

J. Sol. Energy Eng 108(3), 206-213 (Aug 01, 1986) (8 pages) doi:10.1115/1.3268094 History: Received August 01, 1985; Online November 11, 2009


Allowing a solar system that is governed by Bang-Bang controllers to cycle is shown to have an effect on the overall energy collection. An analytical method to evaluate the relative increase in collected energy (RICE) is developed and a design procedure for the selection of the set point ΔT ON of the controller is presented. The performance of several case studies is analyzed and the preference of using the duration of cycles rather than the number of cycles, N , in judging the effect of cycling is discussed.

Copyright © 1986 by ASME
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