Prediction of the onset of nucleate boiling in microchannel flow

被引：136

作者：

Liu, D ^{[1
]}

Lee, PS ^{[1
]}

Garimella, SV ^{[1
]}

机构：

[1] Purdue Univ, Sch Mech Engn, Cooling Technol Res Ctr, W Lafayette, IN 47907 USA

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2005年 / 48卷 / 25-26期

基金：

美国国家科学基金会;

关键词：

microchannels; electronics cooling; boiling; incipience; high heat flux; heat sink;

D O I：

10.1016/j.ijheatmasstransfer.2005.07.021

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The onset of nucleate boiling in the flow of water through a microchannel heat sink was investigated. The micro-channels considered were 275 mu m wide by 636 mu m deep. Onset of nucleate boiling was identified with a high-speed imaging system and the heat flux at incipience was measured under various flow conditions. An analytical model was developed to predict the incipient heat flux as well as the bubble size at the onset of boiling. The closed-form solution obtained sheds light on the impact of the important system parameters on the incipient heat flux. The model predictions yield good agreement with the experimental data. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：5134 / 5149

页数：16

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