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Analytical and Experimental Investigation of Flow-Reversible Heat Exchangers using Temperature-Entropy Bond Graphs

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2 Author(s)
Rahmatallah Shoureshi ; Assistant Professor, School of Mechanical Engineering, Purdue University, West Lafayette, Indiana ; Kevin McLaughlin

Modeling of heat exchangers using true bond graphs with temperature and rate of change of entropy as power variables is presented. Techniques used for modeling of irreversabilities and compressible flows are shown. The results of two and three lump models are compared with experimental results, with the agreement between these low order models and the experimental results being good. This paper shows how well a three lump model (6th order) can predict the dynamics of an actual reversal of flow. Heat exchanger response to mass flow rate oscillation is presented.

Published in:

American Control Conference, 1983

Date of Conference:

22-24 June 1983