Heat-transport capability of self-rewetting fluid heat pipe

WANG Shuangfeng; HU Yanxin; LI Xuanyou

doi:10.3969/j.issn.0438-1157.2012.12.008

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Heat-transport capability of self-rewetting fluid heat pipe

更新时间：2025-12-10

- Heat-transport capability of self-rewetting fluid heat pipe
- CIESC Journal Issue 12, Pages: 3791-3797(2012)
- 作者机构：
  
  1. 华南理工大学传热强化与过程节能教育部重点实验室,广东,广州,510640
  2. 山东省科学院工业节能研究中心,山东,济南,250103
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2012.12.008
  CLC： K124
- Online First：13 September 2012，
  
  Published：13 September 2012
- 稿件说明：
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WANG Shuangfeng, HU Yanxin, LI Xuanyou. Heat-transport capability of self-rewetting fluid heat pipe[J]. CIESC Journal, 2012, (12): 3791-3797.
DOI：

WANG Shuangfeng, HU Yanxin, LI Xuanyou. Heat-transport capability of self-rewetting fluid heat pipe[J]. CIESC Journal, 2012, (12): 3791-3797. DOI： 10.3969/j.issn.0438-1157.2012.12.008.

摘要

高碳醇水溶液表面张力与温度梯度呈现非常规特性

可制备成具有自湿润特性的流体。为探究自湿润流体在热管中对热输送能力的影响

采用0.1%(质量分数)的庚醇水溶液作为工质

以烧结型热管为研究对象

在不同的加热功率和工况(垂直/水平)下

对其热管热输送特性的影响进行了实验研究

并与水进行了对比。结果表明

随着功率增加

自湿润流体作为热管工质的强化传热效果逐趋明显。在水平工况下

由于缺少重力回流的作用

其强化传热效果则更为突出。

Abstract

Dilute aqueous solutions of alcohols with large number of carbon atoms

due to their properties associated to an anomalous dependency of the surface tension with temperature

can be prepared as self-rewetting fluids.In this study

experimental investigation was conducted to explore heat transport capability of heat pipe working with self-rewetting fluid[0.1%(mass) heptanol aqueous solution].Under different heat loads and different orientations(vertical and horizontal orientation)

the heat transport capabilities of heat pipe with the self-rewetting fluid and water were compared.The results show that with the increase of heating power

the heat transport capability of heat pipe is enhanced by using the self-rewetting fluid.In the horizontal heating mode

without the influence of gravity

the enhancement of heat transfer is more evident.Compared with water

the self-rewetting fluid presents significantly better heat transport capability.

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