Mean Temperature Difference Charts for Air Coolers

[+] Author and Article Information
A. Pignotti, G. O. Cordero

Techint S.A., 1001 Buenos Aires, Argentina

J. Heat Transfer 105(3), 592-597 (Aug 01, 1983) (6 pages) doi:10.1115/1.3245626 History: Received February 17, 1982; Online October 20, 2009


Computer generated graphs are presented for the mean temperature difference in typical air cooler configurations, covering the combinations of numbers of passes and rows per pass of industrial interest. Two sets of independent variables are included in the graphs: the conventional one (heat capacity water ratio and cold fluid effectiveness), and the one required in an optimization technique of widespread use (hot fluid effectiveness and the number of heat transfer units). Flow arrangements with side-by-side and over-and-under passes, frequently found in actual practice, are discussed through examples.

Copyright © 1983 by ASME
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