Optimization design of microchannel heat sink geometry for high power laser mirror

被引：20

作者：

Cao, Haishan ^{[1
,2
]}

Chen, Guangwen ^{[1
]}

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

来源：

APPLIED THERMAL ENGINEERING | 2010年 / 30卷 / 13期

基金：

中国国家自然科学基金;

关键词：

Microchannel; Heat sink; Laser mirror; Heat transfer; PERFORMANCE; EXCHANGERS;

D O I：

10.1016/j.applthermaleng.2010.03.022

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Microchannel heat sink for high power laser mirror with water cooling was analyzed as a function of microchannel geometry and operation parameters. A comparative analysis of the thermal deformation on the mirror surface without cooling and that with cooling revealed that the maximal thermal deformation on the mirror surface could decrease from about 0.115 mu m to around 0.040 mu m under the laser power of 200 W/cm(2) by using microchannel heat sink designed. In order to enhance the performance of microchannel heat sink, the effects of channel width, channel depth, fin width, mirror thickness and cooling region were investigated. The results indicated that the heat transfer performance of the microchannel heat sink could be further improved by narrow and deep channel, narrow fin, thin mirror and large cooling region. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1644 / 1651

页数：8

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