Fin Geometry for Minimum Entropy Generation in Forced Convection

[+] Author and Article Information
D. Poulikakos, A. Bejan

Department of Mechanical Engineering, University of Colorado, Boulder, Colo. 80309

J. Heat Transfer 104(4), 616-623 (Nov 01, 1982) (8 pages) doi:10.1115/1.3245176 History: Received October 30, 1980; Online October 20, 2009


This paper establishes a theoretical framework for the minimization of entropy generation (the waste of exergy, or useful energy) in extended surfaces (fins). The entropy generation rate formula for a general fin is derived first. Based on this general result, analytical methods and graphic results are developed for selecting the optimum dimensions of pin fins, rectangular plate fins, plate fins with trapezoidal cross section, and triangular plate fins with rectangular cross section.

Copyright © 1982 by ASME
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