微通道冷凝器低温回路热管的实验研究  

Experiment study on a cryogenic loop heat pipe with a microchannel condenser

作　　者：陈跃勇[1,2] 芮骥才 韩娜丽 董德平[1] 

机构地区：[1]中国科学院上海技术物理研究所,上海200083 [2]中国科学院大学,北京100039

出　　处：《低温工程》2016年第1期43-46,共4页Cryogenics

摘　　要：设计了一套以乙烷作为工质,使用微通道冷凝器的低温回路热管原理样机,并对样机的降温过程、传热性能以及再启动特性进行了实验研究。结果表明:在5 W的驱动功率下该低温回路热管可实现快速降温,在降温过程中通过增大蒸发器的加热功率可以加速回路热管的降温;该样机可以在200 K时能够稳定传输50 W的热量,并且随着加热功率的增大,回路热管的热阻不断减小;在回路热管停止工作后,重新施加热量,该样机仍能够正常启动;该样机在本实验中的最大传热功率为54W,此时的热阻为0.46 K/W。A cryogenic loop heat pipe（ CLHP） with a microchannel condenser is designed with which the cool-down process,heat transfer ability and restart ability are studied by experiments. Ethane is used as the working fluid. The experiment results show that the prototype can cool down with 5 watts applied on evaporator,and the larger heat load applied,the sooner temperature drops. Heat transfer of the CLHP is 50 watts heat at 200 K,and thermal resistance decrease with the increase of the heat load. With a heat load applied on the evaporator,this prototype re-startup after shut down. The prototype achieves a maximum heat transfer capacity of 54 watts with a thermal resistance of 0. 46 K/W.

关 键 词：微通道 冷凝器 回路热管 低温 乙烷 

分 类 号：TB65[一般工业技术—制冷工程] TB66