Optimal Heat Exchangers

[+] Author and Article Information
M. Kovarik

Division of Building, Construction and Engineering, Commonwealth Scientific and Industrial Research Organisation, Highett, Victoria, 3190 Australia

J. Heat Transfer 111(2), 287-293 (May 01, 1989) (7 pages) doi:10.1115/1.3250676 History: Received October 19, 1987; Online October 20, 2009


The design of optimal heat exchangers is formulated as the solution of five simultaneous equations. The analysis of these equations yields general properties of optimal crossflow heat exchangers; in particular, an upper bound of 1/3 is given for the fractional cost of maintaining the flow through the heat exchanger. Some of these general properties also apply in the presence of a simple constraint. It is shown that some technically feasible designs cannot be optimal under realistic costs and others under any costs.

Copyright © 1989 by ASME
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