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首页> 外文期刊>International Journal of Heat and Mass Transfer >Experimental investigation on flow boiling characteristics of R1233zd(E) in a parallel mini-channel heat sink for the application in battery thermal management
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Experimental investigation on flow boiling characteristics of R1233zd(E) in a parallel mini-channel heat sink for the application in battery thermal management

机译：电池热管理中的平行迷你通道散热器R1233ZD（e）流沸腾特性的实验研究

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摘要

Aiming for the application of refrigerant two-phase cooling on battery thermal management, this study presented an experimental investigation on the flow boiling characteristics of R1233zd(E) in a parallel mini-channel heat sink, which consisted of 21 channels with the length of 140 mm and the cross section of 1.5 × 1.5 mm~2. Under the saturation pressure of 125 kPa, the boiling curve of R1233zd(E) and the heat transfer coefficient were analyzed under different heat fluxes (5-100 kW/m~2), mass fluxes (150-600 kg/m~2 s) and inlet subcoolings (2.5-8 K). In addition, the flow pattern was captured using high-speed camera. The results showed that the onset of nucleate boiling was delayed with the increase of refrigerant mass flux and inlet subcooling, while the transition of heat transfer was verified by flow pattern visualization. The measured wall superheat was compared with present correlations, showing that the predicted value was always smaller than the experimental results. Flow boiling on local points showed that the nucleate boiling was triggered later at the channel located at the center axis of the heat sink, meanwhile the approach of critical heat flux was more obvious at channel outlet. Due to the graduate transition of flow boiling mechanism, refrigerant mass flux had limited influence on the local heat transfer coefficient when the heat flux was lower than 30 kW/m~2, while enhancement on heat transfer could be observed with larger mass flux when the heat flux exceeded 30 kW/m~2. The local experimental data of heat transfer coefficient were compared with 6 correlations from the literatures. It was found that the best prediction was presented by Liu and Winterton model with a MAE of 23.4%, while Kim and Mudawar model showed best agreement under different mass fluxes. A simple modification was conducted on Kim and Mudawar model, and the calibrated model presented a better prediction accuracy with the MAE of 17.6% and 83.2% of total data within the error of ±30%.
机译：针对制冷剂两相冷却对电池热管理的应用，本研究提出了对平行迷你通道散热器中R1233ZD（e）的流沸腾特性的实验研究，该散热器由21个通道组成，长度为140 mm，横截面1.5×1.5mm〜2。在125kPa的饱和压力下，在不同的热通量（5-100kW / m〜2），质量通量（150-600kg / m〜2 s下，分析R1233ZD（E）和传热系数的沸腾曲线（150-600kg / m〜2s ）和进样解离冷却（2.5-8 k）。此外，使用高速相机捕获流动模式。结果表明，随着制冷剂质量通量和入口过冷的增加，核心沸腾的开始延迟，而流动模式可视化验证了传热的转变。将测量的壁超热与本相关性进行比较，表明预测值总是小于实验结果。在局部点上的流动沸点表明，稍后在位于散热器的中心轴线处的通道触发核心沸腾，同时临界热通量的方法在通道出口处更明显。由于流量沸腾机构的毕业生过渡，当热通量低于30 kW / m〜2时，制冷剂质量通量对局部传热系数的影响有限，同时可以在较大的质量通量时观察到热传递的增强热通量超过30 kW / m〜2。将传热系数的局部实验数据与来自文献的6个相关性进行了比较。结果发现，刘和温顿模型提出了最佳预测，MAE为23.4％，而金马威模型在不同的质量通量下显示出最佳的一致性。在Kim和Mudawar模型上进行了一个简单的修改，校准模型在±30％的误差内呈现了17.6％和83.2％的83.2％的更好的预测准确性。

著录项

  • 来源
    《International Journal of Heat and Mass Transfer》 |2021年第10期|121591.1-121591.16|共16页
  • 作者

    Yidong Fang; Wenliang Yang; Dan Xu; Lingren Hu; Lin Su; Yuqi Huang;

  • 作者单位

    College of Energy and Power Engineering University of Shanghai for Science and Technology Shanghai 200093 China Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering Shanghai 200093 China College of Energy Engineering Zhejiang University Hangzhou 310058 China;

    College of Energy and Power Engineering University of Shanghai for Science and Technology Shanghai 200093 China;

    College of Energy and Power Engineering University of Shanghai for Science and Technology Shanghai 200093 China;

    College of Energy and Power Engineering University of Shanghai for Science and Technology Shanghai 200093 China;

    College of Energy and Power Engineering University of Shanghai for Science and Technology Shanghai 200093 China Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering Shanghai 200093 China;

    College of Energy Engineering Zhejiang University Hangzhou 310058 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

    Flow boiling; Parallel mini channel; Heat transfer; Flow pattern; Battery thermal management;

    机译：流沸腾;平行迷你通道;传播热量;流动模式;电池热管理;

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