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Startup characteristics of a dual compensation chamber loop heat pipe with an extended bayonet tube

机译：双补偿室环路热管的启动特性，带有伸长的卡口管

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摘要

Dual compensation chamber loop heat pipe (DCCLHP) is an advanced two-phase heat transfer device, which features an orientation-free operation in the terrestrial surroundings and promises great application potential in the aircraft thermal management. In this work, a DCCLHP with an extended bayonet tube was designed and fabricated, aiming to improve its startup performance especially at a small heat load. The startup characteristics of the DCCLHP in five different orientations was experimentally investigated and theoretically analyzed. According to the experimental results, some important conclusions have been drawn: 1) The DCCLHP with an extended bayonet tube could achieve successful startup under the heat load ranging from 10 to 100 W in the horizontal orientation, and no startup failure occurred. 2) The DCCLHP could start up successfully even at a small heat load of 10 W from -90° to +90° tilt angle in the terrestrial surroundings. 3) Different startup phenomena such as the unique change of the temperature overshoot were observed in the experiments. 4) Operating instability such as the temperature oscillation occurred during the startup process in the favorable directions.
机译：双补偿室环路热管（DCCLHP）是一种先进的两相传热装置，其在陆地环境中具有无型操作，并在飞机热管理中承诺很好的应用潜力。在这项工作中，设计并制造了一个带有伸长的卡口管的DCCLHP，旨在改善其启动性能，尤其是在小的热负荷下。实验研究和理论上分析了五种不同取向的DCCLHP的启动特性。根据实验结果，已经绘制了一些重要的结论：1）具有延长的卡口管的DCCLHP可以在水平方向上的10至100W的热负荷下实现成功的启动，并且没有发生启动失败。 2）DCCLHP可以成功启动，即使在陆地环境中距离-90°至+ 90°倾斜角度的小的热负荷也可以成功启动。 3）在实验中观察到不同的启动现象，例如温度过冲的独特变化。 4）操作不稳定性，例如在良好方向的启动过程中发生温度振荡。

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  • 来源
    《International Journal of Heat and Mass Transfer》 |2020年第2期|119066.1-119066.11|共11页
  • 作者

    Lizhan Bai; Yongbo Tao; Yuandong Guo; Guiping Lin;

  • 作者单位

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

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

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

    Laboratory of Fundamental Science on Ergonomics and Environmental Control School of Aeronautic Science and Engineering Beihang University Beijing 100191 PR China Aircraft and Propulsion Laboratory Ningbo Institute of Technology Beihang University Ningbo 315100 PR China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Loop heat pipe; Dual compensation chamber; Startup; Bayonet tube; Orientation;

    机译：环热管;双补偿室;启动;卡口管;方向;

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