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RESEARCH PAPERS

Mean Temperature Difference for Heat Exchanger Design—A General Approximate Explicit Equation

[+] Author and Article Information
W. Roetzel, F. J. L. Nicole

Chemical Engineering Research Group, Council for Scientific and Industrial Research, Pretoria, South Africa

J. Heat Transfer 97(1), 5-8 (Feb 01, 1975) (4 pages) doi:10.1115/1.3450288 History: Received July 23, 1974; Online August 11, 2010

Abstract

An approximate equation together with empirical coefficients is presented for the fast calculation of the mean temperature difference of nine countercurrent cross-flow arrangements, as applied in air-cooled heat exchangers. The same equation can be used for other flow systems, as demonstrated for one shell-and-tube arrangement.

Copyright © 1975 by ASME
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