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复合结构毛细蒸发器传热特性研究
引用本文:李强,周海迎,宣益民.复合结构毛细蒸发器传热特性研究[J].工程热物理学报,2008,29(1).
作者姓名:李强  周海迎  宣益民
作者单位:南京理工大学动力工程学院,江苏南京,210094
摘    要:研制了复合结构毛细蒸发器环路热管,实验研究了环路热管的启动性能与运行特性,通过与单一结构毛细蒸发器环路热管对比,表明复合结构毛细蒸发器环路热管传热功率密度得到了提高,热阻明显降低.但在低功率下启动时,复合结构毛细蒸发器环路热管的温度波动现象加剧.

关 键 词:毛细蒸发器  环路热管  复合毛细芯  复合结构  蒸发器  传热特性  研究  EVAPORATOR  CAPILLARY  COMPOSITE  HEAT  TRANSFER  CHARACTERISTICS  波动现象  温度  启动性能  低功率  热阻  功率密度  热管传热  环路热管  单一结构  运行特性  实验

INVESTIGATION ON HEAT TRANSFER CHARACTERISTICS OF COMPOSITE CAPILLARY EVAPORATOR
LI Qiang,ZHOU Hai-Ying,XUAN Yi-Min.INVESTIGATION ON HEAT TRANSFER CHARACTERISTICS OF COMPOSITE CAPILLARY EVAPORATOR[J].Journal of Engineering Thermophysics,2008,29(1).
Authors:LI Qiang  ZHOU Hai-Ying  XUAN Yi-Min
Abstract:A prototype of loop heat pipe with the composite capillary evaporator was developed to investigate the operational characteristics of the novel structure LHP. The thermal behaviors of the LHP corresponding to the start-up and variation of the heat load were experimentally studied. The thermal resistance and the temperature oscillation phenomena were also analyzed. The comparison of the operational characteristics between the composite capillary evaporator and single capillary evap- orator revealed that the LHP with composite capillary evaporator has higher heat transfer capability and smaller thermal resistance than those of conventional LHP with single structure capillary evapora- tor. But the temperature oscillation was intensified for the LHP with composite capillary evaporator during the start-up process at the small input heat load.
Keywords:capillary evaporator  loop heat pipe  composite wick
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