Development and tests of ammonia Miniature Loop Heat Pipes with cylindrical evaporators

被引：38

作者：

Maydanik, Yury F. ^{[1
]}

Vershinin, Sergey V. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Thermal Phys, Ural Branch, Ekaterinburg 620016, Russia

来源：

APPLIED THERMAL ENGINEERING | 2009年 / 29卷 / 11-12期

基金：

俄罗斯基础研究基金会;

关键词：

Loop heat pipe; Evaporator; Condenser; Heat flux; Thermal resistance;

D O I：

10.1016/j.applthermaleng.2008.11.016

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Miniature Loop Heat Pipes (MLHPs) are an attractive object for development and investigation as quite a promising means for cooling powerful electronics operating in the temperature range from 50 to 100 degrees C. The paper generalizes and presents the results of development and tests of 15 different variants of ammonia MLHPs with cylindrical evaporators 5 and 6 mm in diameter, which have an active zone length of 20 mm and are equipped with titanium and nickel wicks. As a result of successive efforts aimed at increasing the MLHPs efficiency, it was possible to achieve values of the heat-transfer coefficient close to 162,000 W/m(2) degrees C at a value of the heat flux of about 100 x 10(4) W/m(2). A maximum heat flux value of about 135 x 10(4) W/m(2) was achieved at the heat-transfer coefficient equal approximately to 75,000 W/m(2) degrees C. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：2297 / 2301

页数：5

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