毛细结构对平板热管性能的影响

doi:10.3969/j.issn.0438-1157.2014.z1.058

化工学报 ›› 2014, Vol. 65 ›› Issue (S1): 359-363.DOI: 10.3969/j.issn.0438-1157.2014.z1.058

毛细结构对平板热管性能的影响

王晨^1,2, 李艳霞¹, 刘中良¹, 张广孟¹, 张明¹

1. 北京工业大学环境与能源工程学院, 北京 100124;
2. 曙光信息产业(北京)有限公司, 北京 100193

收稿日期:2014-03-05 修回日期:2014-03-11 出版日期:2014-05-30 发布日期:2014-05-30
通讯作者: 李艳霞
基金资助:
国家自然科学基金项目（51076004）。

Influences of capillary structures on flat plat heat pipe performance

WANG Chen^1,2, LI Yanxia¹, LIU Zhongliang¹, ZHANG Guangmeng¹, ZHANG Ming¹

1. College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100022, China;
2. Dawning Information Industry Co., Ltd., Beijing 100193, China

Received:2014-03-05 Revised:2014-03-11 Online:2014-05-30 Published:2014-05-30
Supported by:
supported by the National Natural Science Foundation of China (51076004).

摘要/Abstract

摘要： 详细研究了毛细结构对于平板热管性能的影响，对3种具有同样外形尺寸的深微槽道、交错孔道和双微槽道毛细结构的铜-水平板热管进行了系统的实验研究和分析。研究结果表明，双微槽道热管的热阻最小，深微槽道热管的热阻最大。在轴向导热能力方面，双微槽道热管的性能最好，其次为交错孔道热管，深微槽道热管最差。在径向均热能力方面，双微槽道热管最好，而深微槽道热管与交错孔道热管的均热能力相近。可见，双微槽道热管是最佳毛细结构，其热阻最小，具有最好的轴向导热性能与径向均热性能，原因是蒸发面和冷凝面上的微槽道结构强化了相变换热，降低了相变热阻。

关键词: 热管, 槽道结构, 轴向导热, 径向均热

Abstract: Experimental investigations of flat plate heat pipes (FPHP) are presented. The capillary structures of the three tested FPHPs are intersected narrow grooves on evaporation surface (FPHP 1), interlaced channels(FPHP 2) and intersected micro-grooves on both evaporation surface and condensation surface(FPHP 3). The experimental results showed that FPHP 3 has the smallest thermal resistance and the best axial heat conduction ability, while FPHP 2 has the largest thermal resistance and the poorest axial heat conduction ability. FPHP 3 also has the best radial temperature-leveling performance while the other two are of a similar radial temperature-leveling ability. Therefore, the intersected micro-grooves on both evaporation surface and condensation surface are the best capillary structure for flat plate heat pipes. The reason is perhaps the structure enhances both the boiling heat transfer on the evaporation surface and the condensation heat transfer on the condensation surface.

Key words: heat pipe, intersected micro-grooves, axial direction heat transfer, radial direction heat transfer

中图分类号:

TK124

王晨, 李艳霞, 刘中良, 张广孟, 张明. 毛细结构对平板热管性能的影响[J]. 化工学报, 2014, 65(S1): 359-363.

WANG Chen, LI Yanxia, LIU Zhongliang, ZHANG Guangmeng, ZHANG Ming. Influences of capillary structures on flat plat heat pipe performance[J]. CIESC Journal, 2014, 65(S1): 359-363.

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毛细结构对平板热管性能的影响

Influences of capillary structures on flat plat heat pipe performance

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