ARTICLE:

• A NUMERICAL STUDY OF CROSS FLOW COMPACT HEAT EXCHANGERS  download article

U. D'Ortona
Laboratoire des Sciences du Genie Chimique, CNRS-ENSIC, 1 rue Grandville, BP 451, F-54000 Nancy, France

L. A. Luo
Laboratoire des Sciences du Genie Chimique, CNRS-ENSIC, 1 rue Grandville, BP 451, F-54000 Nancy, France

D. Tondeur
Laboratoire des Sciences du Genie Chimique, CNRS-ENSIC, 1 rue Grandville, BP 451, F-54000 Nancy, France

ABSTRACT

We present a numerical study of compact cross flow heat exchangers made of machined plates. Two of the problems usually encountered at small scales: longitudinal conductivity and relaxation time are addressed. We show that for low flow rates a poor heat conductor might have better performances than a good conductor and that two relaxation times might be observed depending on the temperature evolution.

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221-228 pages

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