Analytical Solution of Transient Response of Gas-to-Gas Parallel and Counterflow Heat Exchangers

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

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

J. Heat Transfer 109(4), 848-855 (Nov 01, 1987) (8 pages) doi:10.1115/1.3248193 History: Received September 10, 1986; Online October 20, 2009


This paper shows how the transient response of gas-to-gas parallel and counterflow heat exchangers may be calculated by an analytical method. Making the usual idealizations for analysis of dynamic responses of heat exchangers, the problem of finding the temperature distributions of both fluids and the separating wall as well as the outlet temperatures of fluids is reduced to the solution of an integral equation. This equation contains an unknown function depending on two independent variables, space and time. The solution is found by using the method of successive approximations, the Laplace transform method, and special functions defined in this paper.

Copyright © 1987 by ASME
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