Application of aqueous nanofluids in a horizontal mesh heat pipe

被引：91

作者：

Liu, ZhenHua ^{[1
]}

Zhu, QunZhi ^{[2
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mech Engn, Shanghai 200240, Peoples R China

[2] Shanghai Univ Elect Power, Sch Energy Sources & Environm Engn, Shanghai 200090, Peoples R China

来源：

ENERGY CONVERSION AND MANAGEMENT | 2011年 / 52卷 / 01期

关键词：

Heat pipe; Heat transfer enhancement; Mesh; Nanofluid; SILVER NANO-FLUID; THERMAL PERFORMANCE; TRANSPORT CAPABILITY;

D O I：

10.1016/j.enconman.2010.07.001

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

An experimental study was carried out to investigate the effects of aqueous CuO nanofluids on thermal performance of a horizontal mesh heat pipe working at steady sub-atmospheric pressures. The nanofluid was composed of deionized water and CuO nanoparticles with an average diameter of 50 nm. The experimental results show that adding CuO nanoparticles into deionized water can significantly enhance heat transfer coefficients of both evaporator and condenser, and the maximum heat flux of the heat pipe. There is an optimal mass concentration of nanoparticles corresponding to the maximum heat transfer enhancement. The operating pressure has an apparent impact on both the evaporating and condensing heat transfer enhancements. The heat transfer enhancement effects increase distinctly with the decrease of the pressure. The present investigation discovers that the thermal performance of a mesh heat pipe can be evidently strengthened by substituting CuO nanofluids for deionized water under sub-atmospheric pressures. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：292 / 300

页数：9

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