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RESEARCH PAPERS

Design and Optimization of Air-Cooled Heat Exchangers

[+] Author and Article Information
C. P. Hedderich, M. D. Kelleher, G. N. Vanderplaats

Department of Mechanical Engineering, Naval Postgraduate School, Monterey, Calif. 93940

J. Heat Transfer 104(4), 683-690 (Nov 01, 1982) (8 pages) doi:10.1115/1.3245186 History: Received August 10, 1981; Online October 20, 2009

Abstract

A computer code has been developed for analysis of air-cooled heat exchangers and was coupled with a numerical optimization program to produce an automated air-cooled, heat-exchanger design and optimization procedure. A general iteration free approximation method was used for the analysis which calculates the mean overall heat-transfer coefficient and the overall pressure drop for many flow arrangements. The analysis takes into account the variation of the heat-transfer coefficients and the pressure drop with temperature and/or length of flow path. The code is not limited to surfaces found in the literature, but will accommodate any triangular pitch bank of finned tubes in multiple-pass configurations. The numerical optimization code is a general purpose program based on the Method of Feasible Directions and the Augmented Lagrange Multiplier Method. The capability is demonstrated by the design of an air-to-water finned-tube heat exchanger and is shown to be a useful tool for heat exchanger design.

Copyright © 1982 by ASME
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