Experimental study of the loop heat pipe with a flat disk-shaped evaporator
Experimental study of the loop heat pipe with a flat disk-shaped evaporator
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平盘形蒸发器环路热管实验研究
DOI：
10.1016/j.expthermflusci.2014.04.017
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发表时间：
2014-09
影响因子：
3.2
通讯作者：
Wei Liu
中科院分区：
文献类型：
--
作者：
Binbin Chen;Jinguo Yang;Zhengkai Tu;Wei Liu
带扁平蒸发器的微型环路热管（LHP）是解决大功率电子设备冷却要求的一种很有前途的解决方案。本文讨论了带平板蒸发器的小型LHP的运行性能和传热特性。加热盘直径为40mm，高度为19mm，蒸发器材料采用黄铜钎焊，630目不锈钢丝网为芯，甲醇为工作液。在这项调查中，进行了启动和变热负荷试验。实验观察到三种启动模式：(1)之字形启动、(2)超调启动和(3)稳定启动。当蒸发器受热壁温度低于85℃，热负荷为20 ~ 240 W，热流密度为1.6 ~ 19.1 W/cm2时，LHP运行稳定，并表现出良好的自调节能力。此外，还比较了蒸发器密封方式对微型LHP与平板蒸发器运行性能的影响。在相同的结构参数和运行条件下，o型环密封蒸发器的LHP只能在热负荷为30 W ~ 140 W时稳定工作，对应的热流密度为2.38 ~ 11.1 W/cm2。这一工作能够验证密封方法在提高微型扁平型lhp性能方面的重要性。
A miniature loop heat pipe (LHP) with a flat evaporator is a promising solution for dealing with cooling requirements for high-power electronic devices. The present paper discusses the operating performance and heat transfer characteristics of a miniature LHP with a flat disk-shaped evaporator. It had a heated disk diameter of 40 mm and height of 19 mm, and was designed with brass as the evaporator material with braze welding, 630 mesh stainless steel wire mesh as the wick and methanol as the working fluid. In this investigation, both start-up and variable heat load tests were conducted. Three start-up modes were experimentally observed in this investigation: (1) zigzag start-up, (2) overshoot start-up, and (3) stable start-up. When the evaporator’s heated wall temperature was lower than 85 °C, with a variable heat load ranging from 20 W to 240 W corresponding to the heat flux of 1.6–19.1 W/cm2, the LHP ran stably and showed good self-adjusting ability. Moreover, comparison of the impacts of sealing method for evaporator on operating performance of miniature LHP with flat-disk type evaporator was conducted. With the same structural parameters and operating conditions, the LHP with an O-ring sealing evaporator could only work stably with heat loads ranging from 30 W to 140 W, corresponding to the heat flux of 2.38–11.1 W/cm2. This work was able to verify the importance of the sealing method in improving the performance of the miniature flat type LHPs.
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影响因子：
3.2
作者：
Li Zhang;Jiayin Xu;Hong Xu
通讯作者：
Li Zhang;Jiayin Xu;Hong Xu
影响因子：
--
作者：
Singh, Randeep;Akbarzadeh, Aliakbar;Mochizuki, Masataka
通讯作者：
Mochizuki, Masataka
DOI：
--
发表时间：
2013
期刊：
--
影响因子：
--
作者：
Susanne Becker;S. Vershinin;V. Sartre;E. Laurien;J. Bonjour;F. Maydanik
通讯作者：
Susanne Becker;S. Vershinin;V. Sartre;E. Laurien;J. Bonjour;F. Maydanik
DOI：
10.1016/j.ijthermalsci.2012.02.027
发表时间：
2012-08-01
影响因子：
4.5
作者：
Liu, ZhiChun;Li, Huan;Liu, Wei
通讯作者：
Liu, Wei
平板蒸发器环路热管中两种双孔吸液芯的工作特性
DOI：
10.1016/j.ijheatmasstransfer.2011.12.004
发表时间：
2012-03
影响因子：
5.2
作者：
Chen, B. B.;Liu, Z. C.;Liu, W.;Yang, J. G.;Li, H.;Wang, D. D.
通讯作者：
Wang, D. D.