Adaptive Control of the Fluid Heat Exchange Process

[+] Author and Article Information
R. C. Harrell

Agricultural Engineering Department, University of Florida, Gainesville, Fla. 32611

G. A. Kranzler

Agricultural Engineering Department, Oklahoma State University, Stillwater, Okla.

C. S. Hsu

Department of Electrical Engineering, Washington State University, Pullman, Wash. 99164

J. Dyn. Sys., Meas., Control 109(1), 49-52 (Mar 01, 1987) (4 pages) doi:10.1115/1.3143819 History: Received November 03, 1986; Online July 21, 2009


An adaptive algorithm for controlling the fluid heat exchange process via flowrate manipulation was presented. The algorithm utilized a model reference structure based on a linear time-variant approximation of the bilinear process dynamics. Adaptive feedforward and feedback compensation was provided. The control law was implemented on an evacuated tube solar water heating system. Experimental results demonstrated the ability of the adaptive scheme to accurately control collector fluid temperature under severe variations in solar insolation.

Copyright © 1987 by ASME
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