Effect of Fouling on Temperature Measurement Error and a Solution

[+] Author and Article Information
Y. I. Cho, B.-G. Choi

Department of Mechanical Engineering and Mechanics, Drexel University, Philadelphia, PA 19104

J. Heat Transfer 120(2), 525-528 (May 01, 1998) (4 pages) doi:10.1115/1.2824282 History: Received August 28, 1997; Revised January 09, 1998; Online December 05, 2007


The objective of the present study was to investigate the effect of fouling on the accuracy of temperature measurement. When a thin scale layer is deposited on a temperature-measuring probe, the temperature reading can be in error by several degrees in spite of ± 0.1 K resolution of the probe. This erroneous temperature reading can pose a serious problem in the evaluation of heat exchanger performance and in the operation of an automated process control system.

Copyright © 1998 by The American Society of Mechanical Engineers
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