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Effect of tube-to-tube conduction on plate-fin and tube heat exchanger performance

✍ Scribed by Ricardo Romero-Méndez; Mihir Sen; K.T. Yang; Rodney L. McClain

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
689 KB
Volume
40
Category
Article
ISSN
0017-9310

No coin nor oath required. For personal study only.

✦ Synopsis

We study the effect of heat transfer between the tubes of a plate-fin and tube heat exchanger by conduction through the fins. Fin conduction not only enhances heat transfer to the over-tube fluid, but also increases tube-to-tube conduction. A continuum model to evaluate this conduction is developed and conditions under which it may or may not be neglected are determined. The effect of parametric variation on the performance of a single-row plate-fin and tube heat exchanger is considered in some detail. Tubeto-tube conduction is found to degrade the performance of the heat exchanger. It is found that the same heat transfer area distributed in a different number of tubes affects its performance.

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