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首页> 外文期刊>International Journal of Heat and Mass Transfer >Numerical analysis of the thermal performance of a liquid cooling battery module based on the gradient ratio flow velocity and gradient increment tube diameter
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Numerical analysis of the thermal performance of a liquid cooling battery module based on the gradient ratio flow velocity and gradient increment tube diameter

机译：基于梯度比流速和梯度增量管直径的液体冷却电池模块热性能的数值分析

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摘要

Battery thermal management systems (BTMSs) ensure that battery packs working in a suitable environment to guarantee the safety and stability of the battery packs. In this study, a new type of liquid cooling BTMS based on the vertical layout of the tube (VLT) and a combination of the gradient increment tube diameter and gradient ratio flow velocity of the fluid medium is proposed. The discrete model based on the battery equivalent circuit model are established to analyze the thermal performance of battery module involving 25 cells in an aluminium frame with straight tubes. The effects of two kinds of tube layouts, fluid velocity, tube diameter, gradient ratio flow velocity and gradient increment tube diameter on the thermal performance of the battery module are discussed. The results show that in a certain range of flow velocity, the battery module with the vertical layout of the tube has better performance than the horizontal layout. In addition, compared with the constant flow velocity and constant tube diameter, the strategy of the gradient ratio flow velocity or gradient increment tube diameter can reduce the battery temperature difference, and the combination of the two can further improve the temperature uniformity. Furthermore, the results show that when the ambient temperature is -10 C and 60 C, the temperature difference of the battery module is reduced by 52.16% and 50.11%, respectively.
机译：电池热管理系统（BTMS）确保在合适的环境中工作的电池组以保证电池组的安全性和稳定性。在本研究中，提出了一种基于管（VLT）的垂直布局的新型液体冷却BTMS和梯度增量管直径和流体介质的梯度比率流速的组合。建立基于电池等效电路模型的离散模型，以分析涉及具有直管中的铝框架中的25个单元的电池模块的热性能。讨论了两种管布局，流体速度，管直径，梯度比率流速和梯度增量管直径对电池模块的热性能的影响。结果表明，在一定范围的流速范围内，具有管的垂直布局的电池模块比水平布局更好。另外，与恒定流速和恒定管直径相比，梯度比流速或梯度增量管直径的策略可以降低电池温度差，并且两者的组合可以进一步提高温度均匀性。此外，结果表明，当环境温度为-10℃和60℃时，电池模块的温差分别降低了52.16％和50.11％。

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  • 来源
    《International Journal of Heat and Mass Transfer》 |2021年第8期|121338.1-121338.14|共14页
  • 作者

    Zhengyu Liu; Xiang Liu; Hui Meng; Lekai Guo; Zheng Zhang;

  • 作者单位

    School of Mechanical Engineering Hefei University of Technology Hefei 230009 China Key Laboratory of Industrial Safety and Emergency Technology of Anhui Province Hefei 230009 China;

    School of Mechanical Engineering Hefei University of Technology Hefei 230009 China Key Laboratory of Industrial Safety and Emergency Technology of Anhui Province Hefei 230009 China;

    School of Mechanical Engineering Hefei University of Technology Hefei 230009 China Key Laboratory of Industrial Safety and Emergency Technology of Anhui Province Hefei 230009 China;

    School of Mechanical Engineering Hefei University of Technology Hefei 230009 China Key Laboratory of Industrial Safety and Emergency Technology of Anhui Province Hefei 230009 China;

    School of Mechanical Engineering Hefei University of Technology Hefei 230009 China Key Laboratory of Industrial Safety and Emergency Technology of Anhui Province Hefei 230009 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

    Battery thermal management system; Liquid cooling; Gradient ratio flow velocity; Gradient increment tube diameter; Temperature uniformity;

    机译：电池热管理系统;液体冷却;梯度比流速;梯度增量管直径;温度均匀;

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