重力对新型大功率环路热管传热性能影响的实验研究  

Experimental study on the effect of gravity on the heat transfer performance of a novel high-power looped heat pipe

作　　者：王新越 李骥 WANG Xinyue;LI Ji(School of Engineering Science,University of Chinese Academy of Sciences,Beijing 100049,China;Laboratory of Advanced Thermal Management Technologies,School of Engineering Science,University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院大学工程科学学院,北京100049 [2]中国科学院大学工程科学学院先进热管理技术实验室,北京100049

出　　处：《中国科学院大学学报（中英文）》2024年第4期442-451,共10页Journal of University of Chinese Academy of Sciences

基　　金：国家自然科学基金(51776195)资助。

摘　　要：针对数据中心冷却引发的巨大能耗问题,提出一种可用于数据中心服务器冷却的大功率空冷式环路热管。通过大量对比实验,探究重力对该环路热管传热性能的影响。实验结果表明,所提出的梯度毛细结构以及对回流液体再冷却的方法能够有效改善大功率环路热管在不同重力模式下的传热性能。经过结构优化后的环路热管在重力辅助模式下的最大传热能力达950 W,对应的系统总热阻低至0.1℃/W,且成功实现了逆重力模式下的运行。To solve the problem of huge energy consumption caused by data center cooling,this paper proposes a high-power air-cooled loop heat pipe that can be used for data center server cooling.The effect of gravity on the heat transfer performance of the loop heat pipe was explored through a large number of comparative experiments.The experimental results show that the gradient capillary structure and the method of re-cooling the reflux liquid proposed in this paper can effectively improve the heat transfer performance of the high-power loop heat pipe in different gravity modes.The loop heat pipe with optimized structure has a maximum heat transfer capacity of 950 W and a minimum total thermal resistance of 0.1℃/W in gravity-assisted mode.In addition,the high-power loop heat pipe proposed in this paper successfully operated in the anti-gravity mode.

关 键 词：数据中心冷却 大功率环路热管 梯度毛细结构 逆重力 

分 类 号：TK124[动力工程及工程热物理—工程热物理]