Condenser design optimization and operation characteristics of a novel miniature loop heat pipe

被引：34
作者：
Wan, Zhen-ping [1 ]
Wang, Xiao-wu [2 ]
Tang, Yong [1 ]
机构：
[1] S China Univ Technol, Guangdong Higher Educ Inst, Key Lab Surface Funct Struct Mfg, Guangzhou 510640, Guangdong, Peoples R China
[2] S China Univ Technol, Dept Phys, Sch Sci, Guangzhou 510640, Guangdong, Peoples R China
来源：
ENERGY CONVERSION AND MANAGEMENT | 2012年 / 64卷
基金：
中国国家自然科学基金;
关键词：
Miniature loop heat pipe; Electronics cooling; Condenser design optimization; Condensation heat transfer enhancement; PERFORMANCE;
D O I：
10.1016/j.enconman.2012.06.004
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Loop heat pipe (LHP) is a promising means for electronics cooling since LHP is a exceptionally efficient heat transfer device. In this paper, a novel miniature LHP (mLHP) system is presented and optimal design of condenser is considered seeing that evaporators have been able to handle very high-heat fluxes with low-heat transfer resistances since most of the previous researchers focused on the evaporator of mLHP. The arrayed pins were designed and machined out on the bottom of condenser to enhance condensation heat transfer. The parameters of the arrayed pins, including layout, cross-section shape and area, were optimized by finite element analysis. Tests were carried out on the mLHP with a CPU thermal simulator using forced air convection condenser cooling to validate the optimization. The operation characteristics of the mLHP with optimal design parameters of condenser were investigated experimentally. The experimental results show that the mLHP can reject head load 200W while maintaining the cooled object temperatures below 100 degrees C, and for a variable power applied to the evaporator, the system presents reliable startups and continuous operation. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：35 / 42
页数：8
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