Forced convective heat transfer across a pin fin micro heat sink

被引:439
作者
Peles, Y [1 ]
Kosar, A [1 ]
Mishra, C [1 ]
Kuo, CJ [1 ]
Schneider, B [1 ]
机构
[1] Rensselaer Polytech Inst, Dept Mech Aerosp & Nucl Engn, Troy, NY 12180 USA
关键词
microscale; heat sink; pin fins; cross flow; MEMS; microchannels;
D O I
10.1016/j.ijheatmasstransfer.2005.03.017
中图分类号
O414.1 [热力学];
学科分类号
摘要
This paper investigates heat transfer and pressure drop phenomena over a bank of micro pin fins. A simplified expression for the total thermal resistance has been derived, discussed and experimentally validated. Geometrical and thermo-hydraulic parameters affecting the total thermal resistance have been discussed. It has been found that very low thermal resistances are achievable using a pin fin heat sink. The thermal resistance values are comparable with the data obtained in microchannel convective flows. In many cases, the increase in the flow temperature results in a convection thermal resistance, which is considerably smaller than the total thermal resistance. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:3615 / 3627
页数:13
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