Heat transfer and pressure drop characteristics in rectangular channels with elliptic pin fins

被引：82

作者：

Li, QL ^{[1
]}

Chen, Z ^{[1
]}

Flechtner, U ^{[1
]}

Warnecke, HJ ^{[1
]}

机构：

[1] Univ Gesamthsch Paderborn, Dept Chem Engn, D-33098 Paderborn, Germany

来源：

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW | 1998年 / 19卷 / 03期

关键词：

elliptic pin fins; heat transfer; pressure drop; heat/mass transfer analogy;

D O I：

10.1016/S0142-727X(98)00003-4

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Experiments have been carried out to investigate the heat transfer and flow resistance characteristics in rectangular ducts with staggered arrays of short elliptic pin fins in a crossflow of air. By employing the heat/mass transfer analogy and the naphthalene sublimation technique, the mean heat transfer coefficients on pin fins and on the endwall (base plate) of the channel have been presented, respectively. The total mean heat transfer coefficients of pin fin channels are calculated and the resistance coefficients are also investigated. The experimental results show that the heat transfer of a channel with elliptic pin fins is somewhat higher than that with circular pin fins while the resistance of the former is much lower than that of the latter in the Reynolds number range from 1000 to 10 000. (C) 1998 Elsevier Science Inc. All rights reserved.

引用

页码：245 / 250

页数：6

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