| 自湿润流体热管的热输送性能 |
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| 引用本文： | 汪双凤,胡艳鑫,李选友.自湿润流体热管的热输送性能[J].化工学报,2012,63(12):3791-3797. |
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| 作者姓名： | 汪双凤 胡艳鑫 李选友 |
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| 作者单位： | 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 |
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| 基金项目： | 国家自然科学基金项目，粤港关键领域重点突破项目 |
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| 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。
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| 关 键 词： | 自湿润流体 热管 强化传热 |
| 收稿时间： | 2012-03-06 |
| 修稿时间： | 2012-09-13 |
Heat-transport capability of self-rewetting fluid heat pipe |
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| WANG Shuangfeng
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HU Yanxin
,
LI Xuanyou.Heat-transport capability of self-rewetting fluid heat pipe[J].Journal of Chemical Industry and Engineering(China),2012,63(12):3791-3797. |
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| Authors: | WANG Shuangfeng HU Yanxin LI Xuanyou |
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| Affiliation: | 1. Key Laboratory of Enhanced Heat Transfer and Energy Conservation of the Ministry of Education, South China University of Technology, Guangzhou 510640, Guangdong, China;
2. Industrial Energy Conservation Center of Shandong Academy Sciences, Jinan 250103, Shandong, China |
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| 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 fluid0.1%(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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| Keywords: | self-rewetting fluid heat pipe heat transfer enhancement |
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