Heat transfer characteristics of loop heat pipe with modulated composite porous wick

doi:10.11949/j.issn.0438-1157.20141581

CIESC Journal ›› 2015, Vol. 66 ›› Issue (6): 2055-2061.DOI: 10.11949/j.issn.0438-1157.20141581

Previous Articles Next Articles

Heat transfer characteristics of loop heat pipe with modulated composite porous wick

WANG Ye, JI Xianbing, ZHENG Xiaohuan, XU Jinliang

State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, Beijing Key Laboratory of Multiphase Flow and Heat Transfer, North China Electric Power University, Beijing 102206, China

Received:2014-10-22 Revised:2015-03-07 Online:2015-03-25 Published:2015-06-05
Supported by:
supported by the National Natural Science Foundation of China (51276061), the National High Technology Research and Development Program of China (2013AA03A113), the Joint Fund of the Natural Science Foundation of China and Guangdong Province (U1034004) and the Key Program of the National Natural Science Foundation of China (51436004).

多尺度复合毛细芯环路热管的传热特性

王野, 纪献兵, 郑晓欢, 徐进良

华北电力大学新能源电力系统国家重点实验室, 多相流与传热北京市重点实验室, 北京 102206

通讯作者: 徐进良
基金资助:
国家自然科学基金项目(51276061);国家高技术研究发展计划项目(2013AA03A113);国家自然科学基金与广东省联合基金项目(U1034004);国家自然科学基金重点项目(51436004)。

Abstract

Abstract:

In order to suffice the different needs for pore size and thermal conductivity of wick in different evaporator regions of loop heat pipe (LHP), a LHP with modulated composite porous wick is constructed and investigated experimentally. The heat transfer characteristics of LHP are tested at different heating powers, inclination angles and cooling conditions. The results show that LHP has good heat transfer performances. The lowest temperature of the evaporator wall center (T_c) is only 64℃ at 200 W. The ice cooling can significantly promote LHP heat transfer performance, reducing T_c and thermal resistance, compared with the air cooling. The lowest thermal resistance is 0.19 K·W^-1. Besides, the ice cooling is helpful to improving the temperature uniformity of the evaporator wall. The effects of inclination angles on temperature and thermal resistance vary with the increase of the heating power. At low heating power, T_c of LHP with evaporator and condenser being the same altitude is lower than that with evaporator below condenser. As the heating power rises, the former becomes higher than the latter. In addition, the heat leak from evaporator to compensation chamber can be reduced by applying the modulated composite porous wick. With the increase of heating power, the effects of inclination angles on heat leak are different.

Key words: loop heat pipe, wick, multiscale, heat transfer, heat leak

摘要：

为解决环路热管在蒸发腔不同区域对于毛细芯孔径尺度和热导率的不同需求, 制备了一种多尺度复合毛细芯环路热管, 并在不同加热功率、放置角度和冷却方式下对环路热管进行了热性能测试。实验发现该环路热管具有较好的传热性能, 在200 W加热功率下, 蒸发腔壁面中心温度T_c最低仅为64℃。与风冷方式相比, 冰冷方式可以显著强化环路热管的传热性能, 降低T_c和热阻。热阻最低为0.19 K·W^-1。同时冰冷方式也有利于改善均温性。当加热功率不同时, 放置角度对环路热管温度及热阻的影响有所不同。另外, 多尺度复合毛细芯的应用有效地降低了热泄漏。随着加热功率的增加, 放置角度不同的LHP的热泄漏变化趋势不同。

关键词: 环路热管, 毛细芯, 多尺度, 传热特性, 热泄漏

CLC Number:

TK124

WANG Ye, JI Xianbing, ZHENG Xiaohuan, XU Jinliang. Heat transfer characteristics of loop heat pipe with modulated composite porous wick[J]. CIESC Journal, 2015, 66(6): 2055-2061.

王野, 纪献兵, 郑晓欢, 徐进良. 多尺度复合毛细芯环路热管的传热特性[J]. 化工学报, 2015, 66(6): 2055-2061.

References 22

[1]	Vasiliev L, Lossouarn D, Romestant C, Alexandre A, Bertin Y, Piatsiushyk Y, Romanenkov V. Loop heat pipe for cooling of high-power electronic components [J]. International Journal of Heat and Mass Transfer, 2009, 52 (1/2): 301-308.
[2]	Huang Jie (黄洁), Wang Naihua (王乃华), Cheng Lin (程林). Simulation of loop heat pipe start-up characteristic [J]. CIESC Journal (化工学报), 2014, 65 (S1): 297-302.
[3]	Mo Dongchuan (莫冬传), Ding Nan (丁楠), Lü Shushen (吕树申). Start-up characteristics of flatten loop heat pipe using in LED [J]. Journal of Engineering Thermophysics (工程热物理学报), 2009, 30 (10): 1759-1762.
[4]	Wang Yiwei (王亦伟), Cen Jiwen (岑继文), Zhu Xiong (朱雄), Jiang Fangming (蒋方明), Liu Pei (刘培). Experimental study on the heat transfer performance of a loop heat pipe [J]. Journal of Optoelectronics· Laser (光电子·激光), 2012, 23 (8): 1458-1462.
[5]	Wang Dongdong, Liu Zhichun, Shen Jun, Jiang Chi, Chen Binbin, Yang Jinguo, Tu Zhengkai, Liu Wei. Experimental study of the loop heat pipe with a flat disk-shaped evaporator [J]. Experimental Thermal and Fluid Science, 2014, 57: 157-164.
[6]	Gai Dongxing (盖东兴), Liu Zhichun (刘志春), Liu Wei (刘伟), Yang Jinguo (杨金国). Characteristics of temperature oscillation in miniature loop heat pipe with flat evaporator [J]. CIESC Journal (化工学报), 2009, 60 (6): 1390-1397.
[7]	Xue Qiang (薛强), Ji Xianbing (纪献兵), Abanda Aime Marthial, Xu Jinliang (徐进良). Heat transfer performance of air cooling type loop heat pipe with compressed foam metal as capillary layers [J]. Proceeding of the CSEE (中国电机工程学报), 2012, 32 (32): 58-63.
[8]	Riehl R R, Siqueira T C P A. Heat transport capability and compensation chamber influence in loop heat pipes performance [J]. Applied Thermal Engineering, 2006, 26 (11/12): 1158-1168.
[9]	Santos P H D, Bazzo E, Oliveira A A M. Thermal performance and capillary limit of a ceramic wick applied to LHP and CPL [J]. Applied Thermal Engineering, 2012, 41: 92-103.
[10]	Zhang Xianfeng (张先锋). Experimental investigation on the performance of loop heat pipe with flat evaporator [J]. Chemical Industry and Engineering Progress (化工进展), 2012, 31 (6): 1200-1205.
[11]	Zhang Hongxing (张红星), Lin Guiping (林贵平), Cao Jianfeng (曹剑锋), Hou Zengqi (侯增祺). Ground-experimental study on the performance of loop heat pipe [J]. Journal of Astronautics (宇航学报), 2003, 24 (5): 468-472.
[12]	Celata Gian Piero, Cumo Maurizio, Furrer Massimo. Experimental tests of a stainless steel loop heat pipe with flat evaporator [J]. Experimental Thermal and Fluid Science, 2010, 34 (7): 866-878.
[13]	Tang Yong, Zhou Rui, Lu Longsheng, Xie Zichun. Anti-gravity loop-shaped heat pipe with graded pore-size wick [J]. Applied Thermal Engineering, 2012, 36: 78-86.
[14]	Hwang G S, Kaviany M, Anderson W G, Zuo J. Modulated wick heat pipe [J]. International Journal of Heat and Mass Transfer, 2007, 50 (7/8): 1420-1434.
[15]	Yeh C C, Chen C N, Chen Y M. Heat transfer analysis of a loop heat pipe with biporous wicks [J]. International Journal of Heat and Mass Transfer, 2009, 52: 4426-4434.
[16]	Semenic Tadej, Catton Ivan. Experimental study of biporous wicks for high heat flux applications [J]. International Journal of Heat and Mass Transfer, 2009, 52: 5113-5121.
[17]	Li Qiang (李强), Zhou Haiying (周海迎), Xuan Yimin (宣益民). Investigation on heat transfer characteristics of composite capillary evaporator [J]. Journal of Engineering Thermophysics (工程热物理学报), 2008, 29 (1): 148-150.
[18]	Xu Jiayin, Zhang Li, Xu Hong, Zhong Jie, Xuan Jin. Experimental investigation and visual observation of loop heat pipes with two-layer composite wicks [J]. International Journal of Heat and Mass Transfer, 2014, 72: 378-387.
[19]	Xu Jiyuan (徐计元), Zou Yong (邹勇), Cheng Lin (程林). Pore structure optimization and properties of composite wicks for loop heat pipes [J]. Proceeding of the CSEE (中国电机工程学报), 2012, 32 (23): 70-74.
[20]	Maydanik Yury F, Vershinin Sergey V, Korukov Mikhail A, Ochterbeck Jay M. Miniature loop heat pipes—a promising means for cooling electronics [J]. IEEE Transactions on Components and Packaging Technologies, 2005, 28 (2): 290-296.
[21]	Li Ji, Wang Daming, Peterson G P. A compact loop heat pipe with flat square evaporator for high power chip cooling [J]. IEEE Transactions on Components, Packaging and Manufacturing Technology, 2011, 1 (4): 519-527.
[22]	Ku Jentung. Operating characteristics of loop heat pipes//29th International Conference on Environment System [C]. Denver, Colorado, USA, 1999.

Heat transfer characteristics of loop heat pipe with modulated composite porous wick

多尺度复合毛细芯环路热管的传热特性

PDF (PC)

Knowledge

Cited

Abstract

Cite this article

share this article

References 22

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	Cheng CHENG, Zhongdi DUAN, Haoran SUN, Haitao HU, Hongxiang XUE. Lattice Boltzmann simulation of surface microstructure effect on crystallization fouling [J]. CIESC Journal, 2023, 74(S1): 74-86.
[2]	Shuangxing ZHANG, Fangchen LIU, Yifei ZHANG, Wenjing DU. Experimental study on phase change heat storage and release performance of R-134a pulsating heat pipe [J]. CIESC Journal, 2023, 74(S1): 165-171.
[3]	Yifei ZHANG, Fangchen LIU, Shuangxing ZHANG, Wenjing DU. Performance analysis of printed circuit heat exchanger for supercritical carbon dioxide [J]. CIESC Journal, 2023, 74(S1): 183-190.
[4]	Aiqiang CHEN, Yanqi DAI, Yue LIU, Bin LIU, Hanming WU. Influence of substrate temperature on HFE7100 droplet evaporation process [J]. CIESC Journal, 2023, 74(S1): 191-197.
[5]	Mingxi LIU, Yanpeng WU. Simulation analysis of effect of diameter and length of light pipes on heat transfer [J]. CIESC Journal, 2023, 74(S1): 206-212.
[6]	Zhiguo WANG, Meng XUE, Yushuang DONG, Tianzhen ZHANG, Xiaokai QIN, Qiang HAN. Numerical simulation and analysis of geothermal rock mass heat flow coupling based on fracture roughness characterization method [J]. CIESC Journal, 2023, 74(S1): 223-234.
[7]	Cong QI, Zi DING, Jie YU, Maoqing TANG, Lin LIANG. Study on solar thermoelectric power generation characteristics based on selective absorption nanofilm [J]. CIESC Journal, 2023, 74(9): 3921-3930.
[8]	Yitong LI, Hang GUO, Hao CHEN, Fang YE. Study on operating conditions of proton exchange membrane fuel cells with non-uniform catalyst distributions [J]. CIESC Journal, 2023, 74(9): 3831-3840.
[9]	Yubing WANG, Jie LI, Hongbo ZHAN, Guangya ZHU, Dalin ZHANG. Experimental study on flow boiling heat transfer of R134a in mini channel with diamond pin fin array [J]. CIESC Journal, 2023, 74(9): 3797-3806.
[10]	Ke LI, Jian WEN, Biping XIN. Study on influence mechanism of vacuum multi-layer insulation coupled with vapor-cooled shield on self-pressurization process of liquid hydrogen storage tank [J]. CIESC Journal, 2023, 74(9): 3786-3796.
[11]	Tianhua CHEN, Zhaoxuan LIU, Qun HAN, Chengbin ZHANG, Wenming LI. Research progress and influencing factors of the heat transfer enhancement of spray cooling [J]. CIESC Journal, 2023, 74(8): 3149-3170.
[12]	Rui HONG, Baoqiang YUAN, Wenjing DU. Analysis on mechanism of heat transfer deterioration of supercritical carbon dioxide in vertical upward tube [J]. CIESC Journal, 2023, 74(8): 3309-3319.
[13]	Yue YANG, Dan ZHANG, Jugan ZHENG, Maoping TU, Qingzhong YANG. Experimental study on flash and mixing evaporation of aqueous NaCl solution [J]. CIESC Journal, 2023, 74(8): 3279-3291.
[14]	Hai WANG, Hong LIN, Chen WANG, Haojie XU, Lei ZUO, Junfeng WANG. Investigation of enhanced boiling heat transfer on porous structural surfaces by high voltage electric field [J]. CIESC Journal, 2023, 74(7): 2869-2879.
[15]	Haopeng SHI, Dawen ZHONG, Xuexin LIAN, Junfeng ZHANG. Experimental study on the downward-facing surface enhanced boiling heat transfer of multiscale groove-fin structures [J]. CIESC Journal, 2023, 74(7): 2880-2888.