Analysis of Mechanical-Draught Counterflow Air/Water Cooling Towers

[+] Author and Article Information
J. W. Sutherland

Agricultural Engineering Group, Commonwealth Scientific and Industrial Research Organization, Highett, Victoria, Australia 3190

J. Heat Transfer 105(3), 576-583 (Aug 01, 1983) (8 pages) doi:10.1115/1.3245624 History: Received January 12, 1982; Online October 20, 2009


This paper compares an accurate analysis of mechanical draught counterflow cooling towers, including water loss by evaporation, with the approximate common method based on enthalpy driving force developed by Merkel in 1925. Computer programs were developed for both the accurate analysis (TOWER A) and the approximate analysis (TOWER B). Substantial underestimates of tower volume of from 5 to 15 percent are obtained when the approximate analysis is used, indicating the possibility of quite serious consequences as far as cooling tower design is concerned. Computer predictions of cooling tower integral are shown to compare well with published values.

Copyright © 1983 by ASME
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