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Experimental investigation on the thermal performance of vapor chamber in a compound liquid cooling system

机译：复合液体冷却系统中蒸汽室热性能的实验研究

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摘要

To develop an efficient and practicable liquid cooling system for battery thermal management, a compound liquid cooling system combining a grooved aluminum vapor chamber with a one-through flow cold plate was proposed and its thermal performance experimentally was studied. The heating power, coolant flow rate, filling ratio and tilting angle of the vapor chamber were investigated, which had an impact on the thermal resistance and temperature difference on the heating surface. The results showed that the vapor chamber with a 20%～30% filling ratio had the smallest thermal resistance and preferable temperature uniformity in horizontal configuration. Due to the heat and mass transport of phases along the longitudinal direction inside the vapor chamber, the temperature difference of the heating surface arising from the temperature rise of the coolant could be suppressed effectively. To evaluate the suppressed effect on the temperature difference of the heating surface, the suppression ratio was proposed. The suppression ratio on the heating surface rose with the increase in heating power and the decrease in flowing rate. The thermal resistance and temperature uniformity of the vapor chamber deteriorated in tilting configuration. The vapor chamber at a positive tilting angle configuration performed better compared with that at a negative tilting angle configuration. At 20%～30% filling ratio, the suppression ratio of the temperature difference on the heating surface could be achieved at 0.78 under positive tilting angle configuration.
机译：为了开发用于电池热管理的高效和切实可行的液体冷却系统，提出了一种复合铝蒸气室，其中具有一流的流冷板的复合液体冷却系统，并研究了其热性能。研究了蒸气室的加热功率，冷却剂流速，填充比和倾斜角，对热性表面的热阻和温差产生了影响。结果表明，具有20％〜30％填充率的蒸汽室具有水平构型的最小热阻和优选的温度均匀性。由于沿蒸汽室内的纵向方向的相的热量和质量传递，可以有效地抑制由冷却剂的温度升高产生的加热表面的温度差。为了评估对加热表面的温差的抑制效果，提出了抑制比。加热表面上的抑制比随着加热功率的增加和流动速率的降低而升高。蒸汽室的热阻和温度均匀性在倾斜构型中劣化。与处于负倾斜角度配置的蒸汽室以正倾斜角配置进行更好地执行。填充率为20％〜30％，在正倾斜角构造下，可以在0.78处实现加热表面上的温差的抑制比。

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  • 来源
    《International Journal of Heat and Mass Transfer》 |2021年第5期|121026.1-121026.10|共10页
  • 作者

    Weiping Li; Longjian Li; Wenzhi Cui; Mengting Guo;

  • 作者单位

    School of Energy and Power Engineering Chongqing University Chongqing 400030 China Key Laboratory of Low-grade Energy Utilization Technology and Systems (Chongqing University) Ministry of Education of PRC Chongqing 400030 China;

    School of Energy and Power Engineering Chongqing University Chongqing 400030 China Key Laboratory of Low-grade Energy Utilization Technology and Systems (Chongqing University) Ministry of Education of PRC Chongqing 400030 China;

    School of Energy and Power Engineering Chongqing University Chongqing 400030 China Key Laboratory of Low-grade Energy Utilization Technology and Systems (Chongqing University) Ministry of Education of PRC Chongqing 400030 China;

    School of Energy and Power Engineering Chongqing University Chongqing 400030 China Key Laboratory of Low-grade Energy Utilization Technology and Systems (Chongqing University) Ministry of Education of PRC Chongqing 400030 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

    Compound liquid cooling system; Vapor chamber; Temperature uniformity; Thermal resistance; Battery thermal management;

    机译：复合液体冷却系统;蒸汽室;温度均匀;热阻;电池热管理;

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