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首页> 外文会议>Cryogenics Conference >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：甲烷电荷低温回路热管的工作特性的实验研究

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Methane-charged cryogenic loop heat pipe can realize efficient cryogenic heat transport at the temperature range of 90-190 K, which exhibits great application potential in the thermal control of future space infrared exploration system. In this work, an extensive experimental study on the supercritical startup and heat transport characteristics of a methane-charged cryogenic loop heat pipe integrated with a pulse tube cryocooler was conducted, where the effects of the auxiliary heat load applied to the secondary evaporator and was investigated. Experimental results showed that the CLHP could successfully realize the supercritical startup with an auxiliary heat load of 1.5 W. The CLHP could reach a heat transport capability of 7.5W over a distance of 0.6m corresponding to an optimum charged pressure of the working fluid. And there exists a minimum auxiliary heat load for the cryogenic loop heat pipe with primary heat load of 1W at some charged pressure. Furthermore, the mechanisms responsible for these phenomena mentioned above have been analysed and discussed qualitatively, providing a better understanding from the theoretical aspect.
机译：甲烷电荷的低温环热管可以在90-190 k的温度范围内实现有效的低温传输，这在未来空间红外勘探系统的热控制中表现出很大的应用潜力。在这项工作中，对与脉冲管冷冻机集成的甲烷电荷的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，其中施加到二次蒸发器并进行了研究。实验结果表明，CLHP可以成功地实现具有1.5W的辅助热负荷的超临界启动.CLHP可以在0.6M的距离上达到7.5W的热传递能力，对应于工作流体的最佳带电压力。并且存在最小的辅助热负荷，用于低温环热管，其在一些带电压力下的初级热负荷为1W。此外，已经分析并定性地分析了负责这些现象的机制，从定性地讨论，从理论方面提供更好的理解。

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