Analytical Solution of the Transient Response of Gas-to-Gas Crossflow Heat Exchanger With Both Fluids Unmixed

[+] Author and Article Information
D. D. Gvozdenac

Institute of Fluid, Thermal, and Chemical Engineering, University of Novi Sad, Novi Sad, Yugoslavia

J. Heat Transfer 108(4), 722-727 (Nov 01, 1986) (6 pages) doi:10.1115/1.3247004 History: Received March 26, 1985; Online October 20, 2009


The dynamic response of a single-pass crossflow heat exchanger with both fluids unmixed to arbitrary time varying inlet temperatures of fluids is investigated analytically. The initial spatial temperature distribution of the heat exchanger core is arbitrary as well. Analytical solutions for temperature distributions of both fluids and the wall as well as the mean mixed fluid temperatures at the exit are presented. The solutions are found by using Laplace transform method and special functions in the form of series of modified Bessel functions.

Copyright © 1986 by ASME
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