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Title of Journal: Heat Mass Transfer

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Abbravation: Heat and Mass Transfer

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Springer Berlin Heidelberg

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DOI

10.1016/0022-2852(86)90061-5

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ISSN

1432-1181

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Heat transfer performance of a novel doublelayer

Authors: Biao Tang Rui Zhou Pengfei Bai Ting Fu Longsheng Lu Guofu Zhou
Publish Date: 2016/07/16
Volume: 53, Issue: 3, Pages: 929-936
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Abstract

High pressure drop and significant nonuniformity in temperature distribution along the streamwise direction are still challenges to the design of minichannel heat sink High density minichannel arrays with high liquidwall contact area are usually pursued in a conventional singlelayer design of heat sink which also inevitably brings high pressure drop A novel doublelayer structured heat sink is proposed in this paper Four heat sinks with various designs in minichannel density and flow direction were fabricated and studied experimentally on the heat transfer performance The single factor of heat load does not show obvious effect on the overall thermal resistance of the heat sinks On the other hand slight decrease in thermal resistance was found with the increase in heat load at high flow rates Moreover a computational fluid dynamics modeling work was conducted The results indicate that the parallel crossflow field regulated by the doublelayer structure enhances the heat exchange in both horizontal and vertical directions and consequently gives an uniform temperature distribution and high heat transfer efficiencyThis project is supported by National Natural Science Foundation of China Grant No 51405165 Partial financial supports from Program for Changjiang Scholars and Innovative Research Team in University No IRT13064 National Natural Science Foundation of China Grant No 51505159 and open Foundation of the Key Laboratory of Metallurgical Equipment and Control of Education Ministry under Grant Number 2015B12 are also acknowledged

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