title   
  

TCPT-2006-096.R2: micro scale pin fin heat sinks - parametric performance evaluation study

Koşar, Ali and Yoav, Peles (2007) TCPT-2006-096.R2: micro scale pin fin heat sinks - parametric performance evaluation study. IEEE Transactions on Components and Packaging Technologies, 30 (4). pp. 855-865. ISSN 1521-3331

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Official URL: http://dx.doi.org/10.1109/TCAPT.2007.906334

Abstract

A parametric study of heat transfer and pressure drop associated with forced flow of deionized water over five micro pin fin heat sinks of different spacing, arrangements, and shapes was conducted experimentally. Nusselt numbers and friction factors were obtained over Reynolds numbers ranging from 14 to 720. The thermal and hydraulic results were obtained to evaluate and compare the heat sinks performances at fixed mass flow rate, fixed pressure drop, and fixed pumping power. Two distinct regions of the Nusselt number dependency on the Reynolds number separated by a critical Reynolds number have been identified for unstreamlined pin fin devices while the streamlined device showed no slope change. The effects of spacing, shape of pin fins, and arrangement on friction factor and heat transfer were in agreement with existing literature. The results indicate that utilizing streamlined pin fin heat sinks can significantly enhance the thermal-hydraulic performance of the heat sink, but only at moderate Reynolds numbers.

Item Type:Article
Subjects:T Technology > TJ Mechanical engineering and machinery
ID Code:10288
Deposited By:Ali Koşar
Deposited On:08 Nov 2008 10:30
Last Modified:25 May 2011 14:04

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