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RESEARCH PAPERS

Differential Methods for the Performance Prediction of Multistream Plate-Fin Heat Exchangers

[+] Author and Article Information
B. S. V. Prasad, S. M. K. A. Gurukul

Research & Development Division, Bharat Heavy Plate & Vessels Ltd., Visakhapatnam—530 023, India

J. Heat Transfer 114(1), 41-49 (Feb 01, 1992) (9 pages) doi:10.1115/1.2911265 History: Received March 26, 1990; Revised April 23, 1991; Online May 23, 2008

Abstract

Use of traditional methods of rating can prove inaccurate or inadequate for many plate-fin heat exchanger applications. The superiority in practical situations of differential methods, based on dividing the heat exchanger into several sections and a step-wise integration of the heat transfer and pressure loss functions, is discussed. Differential methods are developed for counterflow, crossflow, and cross-counter-flow heat exchangers. The methods developed also avoid iterations at the section level calculations. Design of computer algorithms based on these methods is outlined. Two computer programs developed using the methods are presented and the results for a few typical cases are discussed.

Copyright © 1992 by The American Society of Mechanical Engineers
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