Modeling and Parameter Estimation of Heat Exchangers—A Statistical Approach

[+] Author and Article Information
G. Jonsson

Department of Mechanical Engineering, University of Iceland, Reykjavik, Iceland

O. P. Palsson, K. Sejling

The Institute of Mathematical Statistics and Operations Research, The Technical University of Denmark, DK-2800 Lyngby, Denmark

J. Dyn. Sys., Meas., Control 114(4), 673-679 (Dec 01, 1992) (7 pages) doi:10.1115/1.2897740 History: Received August 30, 1991; Revised March 03, 1992; Online March 17, 2008


A continuous in time dynamic model of counterflow and parallel flow heat exchangers is presented. The model is on state space form and it is shown how to use statistical methods, Kalman filtering and least squares, to estimate the model parameters. Empirical relations for convection heat transfer are incorporated in the parameters in order to improve the model performance. The parameters in these empirical formulas may be estimated with the same methods, thereby adjusting the relations to the specific heat exchanger. As a case-study, a small counterflow plate heat exchanger is modeled and some results from the parameter estimation are given.

Copyright © 1992 by The American Society of Mechanical Engineers
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