环路热管毛细结构的研究进展  

Research and Development of Capillary Structure in Loop Heat Pipe

作　　者：徐计元[1] 邹勇[1] 

机构地区：[1]山东大学,山东省济南市250061

出　　处：《中国电机工程学报》2013年第8期65-73,12,共9页Proceedings of the CSEE

基　　金：山东省中青年科学家科研奖励基金(BS2009CL052)~~

摘　　要：环路热管是一种利用相变换热的高效传热装置,在电子元件高效散热等领域得到广泛应用。环路热管蒸发器中的多孔毛细结构是整个系统循环的重要动力来源及核心组成部分。文中综述了环路热管蒸发器多孔毛细结构近十年的研究进展,其中包括宏观结构(蒸汽槽道及毛细芯宏观尺寸)优化研究、微观结构优化研究以及新型材料研究,并重点讨论了双孔径毛细芯及复合结构毛细芯的研究进展。文中还对多孔毛细结构的毛细抽吸性能的表征方法进行了简要概述,为进一步优化毛细芯性能提供了理论指导。最后文章对各研究成果进行了总结并提出了未来高性能毛细芯研究的发展方向。As a kind of high efficient two-phase heat transfer device, loop heat pipe （LHP） has been extensively used in thermal management of electrical and electronic devices （e.g. CPUs, spacecraft thermal control systems, etc.）. The porous capillary structure in the evaporator is the key component of the overall system, which provides high capillary force to circulate the working fluid. This paper summarized the main research achievements of the LHP porous wicks over the last ten years in detail, including the macro-structure （i.e. the vapor grooves and wick sizes） optimizations, the micro-structure optimizations and the novel materials studies for loop heat pipes. Biporous wicks and composite-structure wicks were emphatically discussed in this paper. Moreover, the characterizations of capillary pumping performance of porous structures were introduced, which provide theoretical information to optimize the overall performance of the LHP wicks. After summarizing the researches, the developing trends of high-performance LHP capillary wicks are discussed.

关 键 词：环路热管 毛细芯 毛细抽吸性能 双孔径 

分 类 号：TF125[冶金工程—粉末冶金] TK172[冶金工程—冶金物理化学]