表面浸润程度对脉动热管传热性能的影响

doi:10.11949/j.issn.0438-1157.20170665

化工学报 ›› 2017, Vol. 68 ›› Issue (S1): 141-149.DOI: 10.11949/j.issn.0438-1157.20170665

表面浸润程度对脉动热管传热性能的影响

纪玉龙, 庾春荣, 张庆振, 孙达

大连海事大学轮机工程学院, 辽宁大连 116026

收稿日期:2017-05-22 修回日期:2017-05-26 出版日期:2017-08-31 发布日期:2017-08-31
通讯作者: 纪玉龙,jiyulongcn@163.com
基金资助:
交通运输部应用基础研究项目（2015329225070）；辽宁省自然科学基金项目（201602095）；中央高校基本科研业务费专项资金项目（3132016340）。

Effect of surface wettability on heat transfer performance of oscillating heat pipe

JI Yulong, YU Chunrong, ZHANG Qingzhen, SUN Da

Marine Engineering College, Dalian Maritime University, Dalian 116026, Liaoning, China

Received:2017-05-22 Revised:2017-05-26 Online:2017-08-31 Published:2017-08-31
Supported by:
supported by the Applied Basic Research Programs of Ministry of Transport of China (2015329225070),the Natural Science Foundation of Liaoning Province (201602095) and the Fundamental Research Funds for the Central Universities of China (3132016340).

摘要/Abstract

摘要：

为了深入理解表面浸润性对脉动热管传热性能的影响，利用碱性辅助表面氧化技术，通过控制氢氧化钠和过硫酸铵溶液与铜表面反应浓度的变化，制备了具有不同浸润程度表面的脉动热管，其表面接触角分别为0°、33.9°、55.7°、84.3°。通过实验研究了表面浸润程度对脉动热管传热性能的影响。结果显示，随着脉动热管内部浸润性的增强，其脉动频率及幅度增加，脉动热管热阻及温差降低，传热性能得到强化。

关键词: 脉动热管, 传热, 界面张力, 浸润程度, 气液两相流

Abstract:

Experiments were performed to understand the influence of surface wettability on heat transfer performance of an oscillating heat pipe (OHP),the alkali assistant surface oxidation technique was used to fabricate the surfaces. The surfaces with different wettability were obtained by control the concentration of the reaction solution of sodium hydroxide and ammonium persulfate. Different OHPs were obtained with the surface contact angles(CA) of 0°、33.9°、55.7°、84.3°,respectively. The effect of different degrees of surface wettability on heat transfer performance of oscillating heat pipe was investigated experimentally. The results show that the oscillating frequency and amplitude of the working fluid in the OHP increases as the CA increases. The thermal resistance and temperature difference of OHP decreases as the CA increases. Therefore,heat transfer performance of the OHP was enhanced as the CA increases.

Key words: oscillating heat pipe, heat transfer, interfacial tension, wettability degree, gas-liquid flow

中图分类号:

TK124

纪玉龙, 庾春荣, 张庆振, 孙达. 表面浸润程度对脉动热管传热性能的影响[J]. 化工学报, 2017, 68(S1): 141-149.

JI Yulong, YU Chunrong, ZHANG Qingzhen, SUN Da. Effect of surface wettability on heat transfer performance of oscillating heat pipe[J]. CIESC Journal, 2017, 68(S1): 141-149.

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表面浸润程度对脉动热管传热性能的影响

Effect of surface wettability on heat transfer performance of oscillating heat pipe

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