Numerical and experimental investigations of electronic evaporative cooling performance with a coiled channel

被引：4

作者：

Yin, Xiang ^{[1
]}

Cao, Feng ^{[1
]}

Jin, Lei ^{[1
]}

Hu, Bin ^{[1
]}

Shu, Pengcheng ^{[1
]}

Wang, Xiaolin ^{[2
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Energy & Power Engn, 28 Xianning West Rd, Xian 710049, Peoples R China

[2] Univ Tasmania, Sch Engn & ICT, Private Bag 65, Hobart, Tas 7001, Australia

来源：

APPLIED THERMAL ENGINEERING | 2016年 / 94卷

基金：

中国国家自然科学基金;

关键词：

Electronic evaporative cooling; Numerical simulation; Coiled channel; VOF; Phase distribution; Cooling performance; BOILING HEAT-TRANSFER; FLOW; SIMULATION; NUCLEATE;

D O I：

10.1016/j.applthermaleng.2015.10.127

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Numerical and experimental investigations on two-phase evaporative cooling performance for a moving electronic unit with high heat flux have been performed in a coiled channel heat exchanger. Based on the VOF model, the phase distribution of a 3D coiled channel was investigated. It was found that the main vapor streamline flowed through the inner side of one bend channel to the next one, which increased the contact frequency of the vapor and the liquid, improving the cooling performance. Moreover, the results were also verified by the experiment. The cooling effect was directly affected by heat concentration in the bend channel. An optimized method was implemented for this phenomenon. Decreasing the effective flow area and increasing the local velocity could establish a new force balance for the vapor and liquid, eliminating the heat concentration and improving the overall cooling performance. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：256 / 265

页数：10

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