Linear Matrix Operator Formalism for Basic Heat Exchanger Thermal Design

[+] Author and Article Information
A. Pignotti

TECHINT S.A., 1001 Buenos Aires, Argentina

J. Heat Transfer 110(2), 297-303 (May 01, 1988) (7 pages) doi:10.1115/1.3250483 History: Received April 27, 1987; Online October 20, 2009


The matrix formalism used for the thermal description of heat exchangers is extended to include streams with variable temperature distributions. In this approach, a heat exchanger is described by a temperature-independent matrix operator, which, acting on the inlet temperature distributions, generates the outlet ones. This formalism is particularly useful for the evaluation of the thermal effectiveness of complex heat exchanger configurations that can be broken into simple constitutive parts, linked to each other by unmixed streams. Applications to crossflow configurations of practical interest are shown.

Copyright © 1988 by ASME
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