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首页> 外文会议>14th cryogenics 2017 >AN EXPERIMENTAL STUDY ON THE WORKING CHARACTERISTICS OF A METHANE-CHARGED CRYOGENIC LOOP HEAT PIPE
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AN EXPERIMENTAL STUDY ON THE WORKING CHARACTERISTICS OF A METHANE-CHARGED CRYOGENIC LOOP HEAT PIPE

机译：甲烷充液低温热管工作特性的实验研究

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摘要

Methane-charged cryogenic loop heat pipe can realize efficient cryogenic heat transport at the temperaturernrange of 90-190 K, which exhibits great application potential in the thermal control of future space infraredrnexploration system. In this work, an extensive experimental study on the supercritical startup and heatrntransport characteristics of a methane-charged cryogenic loop heat pipe integrated with a pulse tuberncryocooler was conducted, where the effects of the auxiliary heat load applied to the secondary evaporatorrnand was investigated. Experimental results showed that the CLHP could successfully realize the supercriticalrnstartup with an auxiliary heat load of 1.5 W. The CLHP could reach a heat transport capability of 7.5W overrna distance of 0.6m corresponding to an optimum charged pressure of the working fluid. And there exists arnminimum auxiliary heat load for the cryogenic loop heat pipe with primary heat load of 1W at some chargedrnpressure. Furthermore, the mechanisms responsible for these phenomena mentioned above have beenrnanalysed and discussed qualitatively, providing a better understanding from the theoretical aspect.
机译：甲烷充填式低温回路热管可在90-190 K的温度范围内实现高效的低温传热，在未来空间红外探测系统的热控制中具有巨大的应用潜力。在这项工作中，对带有脉冲管低温冷却器的甲烷充填式低温回路热管的超临界启动和传热特性进行了广泛的实验研究，研究了辅助热负荷对二次蒸发器的影响。实验结果表明，CLHP能够在1.5 W的辅助热负荷下成功实现超临界启动。CLHP的传热能力可以达到7.5 W，最远距离为0.6 m，对应于最佳的工作流体充注压力。在一定的增压压力下，主循环热负荷为1W的低温回路热管存在最小的辅助热负荷。此外，定性地分析和讨论了引起上述现象的机理，从理论上提供了更好的理解。

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    《14th cryogenics 2017》|2017年|238-244|共7页
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  • 作者

    Guo Yuandong; Lin Guiping; Zhang Hongxing; Miao Jianyin; He Jiang; Bai Lizhan;

  • 作者单位

    Laboratory of Fundamental Science on Ergonomics and Environmental Control, School ofAeronautic Science and Engineering, Beihang University Beijing 100191, PR China,guoyd@buaa.edu.cn;

    Laboratory of Fundamental Science on Ergonomics and Environmental Control, School ofAeronautic Science and Engineering, Beihang University Beijing 100191, PR China;

    Beijing Key Laboratory of Space Thermal Control Technology, Beijing Institute of Spacecraft System Engineering, China Academy of Space Technology Beijing 100094, PR China,redstarbenben@163.com;

    Beijing Key Laboratory of Space Thermal Control Technology, Beijing Institute of Spacecraft System Engineering, China Academy of Space Technology Beijing 100094, PR China;

    Beijing Key Laboratory of Space Thermal Control Technology, Beijing Institute of Spacecraft System Engineering, China Academy of Space Technology Beijing 100094, PR China;

    Laboratory of Fundamental Science on Ergonomics and Environmental Control, School ofAeronautic Science and Engineering, Beihang University Beijing 100191, PR China;

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