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加速度场中环路热管温度波动现象分析

薛好,  谢永奇,  戴华,  余建祖,  马伟

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文章导航 > 北京航空航天大学学报  > 2016 >  42(7): 1502-1508.
薛好, 谢永奇, 戴华, 等 . 加速度场中环路热管温度波动现象分析[J]. 北京航空航天大学学报, 2016, 42(7): 1502-1508. doi: 10.13700/j.bh.1001-5965.2015.0465
引用本文: 薛好, 谢永奇, 戴华, 等 . 加速度场中环路热管温度波动现象分析[J]. 北京航空航天大学学报, 2016, 42(7): 1502-1508. doi: 10.13700/j.bh.1001-5965.2015.0465
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XUE Hao, XIE Yongqi, DAI Hua, et al. Investigation of temperature fluctuation in loop heat pipe under acceleration fields[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(7): 1502-1508. doi: 10.13700/j.bh.1001-5965.2015.0465(in Chinese)
Citation: XUE Hao, XIE Yongqi, DAI Hua, et al. Investigation of temperature fluctuation in loop heat pipe under acceleration fields[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(7): 1502-1508. doi: 10.13700/j.bh.1001-5965.2015.0465(in Chinese)
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加速度场中环路热管温度波动现象分析

doi: 10.13700/j.bh.1001-5965.2015.0465
  • 1.

    北京航空航天大学航空科学与工程学院, 北京 100083

  • 2. 郑州幼儿师范高等专科学校, 郑州 453001

  • 3. 空间物理重点实验室, 北京 100076

基金项目: 中央高校基本科研业务费专项资金（YWF-14-HKXY-019）
详细信息
    作者简介:

    薛好 男,硕士研究生。主要研究方向:环路热管、强化传热等。E-mail: buaaxh@126.com;谢永奇 男,博士,讲师,硕士生导师。主要研究方向:飞行器环境控制、电子设备热设计等。Tel.: 010-82318081 E-mail: xyq@buaa.edu.cn

    通讯作者:

    谢永奇,Tel.: 010-82318081 E-mail: xyq@buaa.edu.cn

  • 中图分类号: V444.3;TB131

Investigation of temperature fluctuation in loop heat pipe under acceleration fields

  • 1.

    School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • 2. Zhengzhou Kindergarten Teachers College, Zhengzhou 453001, China

  • 3. Science and Technology on Space Physics Laboratory, Beijing 100076, China

    摘要
  • 摘要: 基于离心机系统，搭建了双储液器环路热管（DCCLHP）工作特性实验台，实验研究了环路热管在地面重力场和过载加速度场中的运行性能，热载荷范围为25～300 W，过载加速度大小为3g～9g，分析了不同热载荷、加速度方向、大小对环路热管温度波动的影响。结果表明，过载加速度会改变环路热管的启动模式和运行性能，可抑制或激发冷凝器出口温度波动甚至整个环路的波动，但相同热载荷下蒸发器运行温度基本一致。回路中气液两相流动自身固有的不稳定性在过载加速度效应下更易受到激发，加剧回路中流动不稳定，进而加剧蒸发器向储液器漏热的不稳定。冷凝器的冷却作用可以有效削弱冷凝器段的温度波动。

     

    Abstract: Based on the centrifugal machine system, a test apparatus was set up to investigate the operating characteristics of dual compensation chambers loop heat pipe (DCCLHP) under both gravity and acceleration fields. The ranges of the heat load and the magnitude of acceleration are 25-300W and 3g-9g, respectively. The influences of different heat loads, acceleration directions and magnitudes on temperature fluctuations of loop heat pipe were analyzed. The results indicate that the effect of the acceleration can change the start mode and operating performance of the DCCLHP. The temperature fluctuation at the outlet of the condenser and even around the whole loop can be restrained or wakened. But the operating temperature of the evaporator is nearly the same under the same heat load conditions. The inherent flow instability of the gas-liquid two phase flow can be enhanced by the acceleration effect which reinforces this unstable flow in reverse. Furthermore, the instability of the heat leak from the evaporator to the compensation chamber is enhanced. In addition, the cooling effect of the condenser can weaken the temperature fluctuation of the condensing pipe line.

     

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    • 参考文献(15)
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出版历程
  • 收稿日期:  2015-07-13
  • 网络出版日期:  2016-07-20

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