乙醇三维内微肋热管的传热性能  

Heat Transfer Performance of Ethanol Tree-Dimensional Inner Micro-Fin Heat Pipe

作　　者：德军 辛明道[1] 

机构地区：[1]重庆大学工程热物理研究所,重庆400044

出　　处：《重庆大学学报（自然科学版）》2003年第4期115-117,共3页Journal of Chongqing University

基　　金：国家重点基础研究专项经费资助项目 (G2 0 0 0 0 2 63 0 5 )

摘　　要：采用实验研究的方法对三维内微肋热管的强化传热特性进行研究 ,首次报道了以乙醇为工质的三维内微肋热管的传热性能。在实验范围内 ,与光管相比 ,竖直放置时 ,沸腾换热系数可以提高98%～ 190 % ,凝结换热系数可以提高 76 %～ 178%。三维内微肋结构能够同时明显地强化热管的沸腾换热与凝结换热 ,可以有效地减小热管的内热阻。Experimental study is done to obtain the heat transfer augmentation property of three dimensional inner micro fin heat pipe and the heat transfer performance of ethanol three dimensional inner micro fin heat pipe is reported. At the range of the experiment, three dimensional inner microfin heat pipe can increase mean boiling heat transfer coefficient by 98%～190% and increase mean condensing heat transfer coefficient by 76%～178% compared with smooth heat pipe . The three dimensional inner microfin structure can greatly enhance both boiling heat transfer and condensing heat transfer, and decrease heat pipe's inner heat resistance effectively.

关 键 词：三维内微肋热管 强化传热性能 沸腾换热系统 凝结换热系数 乙醇 内热阻 

分 类 号：TK172.4[动力工程及工程热物理—热能工程] TK124