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首页> 外文期刊>International journal of green energy >Heat dissipation characteristic in the intake grille and radiator of a fuel cell vehicle
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Heat dissipation characteristic in the intake grille and radiator of a fuel cell vehicle

机译：进气格栅和燃料电池车辆散热器的散热特性

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摘要

In this study, a three-dimension (3D) computational model was proposed to investigate the flow and heat transfer characteristics of the intake grilles of two different fuel cell vehicles. The models of the intake grilles were constructed according to the actual sizes of two vehicles, namely, Roewe 950 and Toyota Mirai, considering the heat dissipation unit to simplify the heat transfer model of the vehicle. The results showed that relative to Roewe 950, Mirai intake air flow rate was approximately 10% higher, the heat transfer capacity was approximately 7% higher, and the intake grille area was larger. The coolant outlet temperature of Mirai was lower than that of Roewe 950, which was beneficial for the long term and stable operation of a fuel cell. This comparative study provided guidance for the intake grille and radiator design of fuel cell vehicles. The only difference between fuel cell vehicles on the market and conventional vehicles was that in the former, the internal combustion engine was replaced with a fuel cell stack, which had insufficient heat transfer capacity because of the reducing temperature difference. Increasing the intake grille area and the heat exchange capacity of the radiator were the key issues for the development of fuel cell vehicles. In this study, an optimal window opening angle of the radiator fin of 23 degrees provided a maximal heat transfer coefficient.
机译：在本研究中，提出了一种三维（3D）计算模型来研究两种不同燃料电池车辆的进气烤架的流动和传热特性。考虑到散热装置简化车辆的传热模型，根据两个车辆的实际尺寸，即荣威950和丰田Mirai建造了进气格栅的模型。结果表明，相对于荣威950，Mirai进气流流速高约10％，传热能力较高约7％，进气块面积较大。 mirai的冷却剂出口温度低于荣威950的冷却剂，这对于燃料电池的长期和稳定运行有益。该比较研究为燃料电池车辆的进气格栅和散热器设计提供了指导。市场和传统车辆上的燃料电池车辆之间的唯一区别在于，在前者中，内燃机被燃料电池堆叠，由于还原温度差而没有热传递能力。增加进气块区域和散热器的热交换能力是燃料电池车辆发展的关键问题。在该研究中，散热器翅片的最佳窗口开口角度为23度，提供了最大的传热系数。

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  • 来源
    《International journal of green energy》 |2020年第10期|591-601|共11页
  • 作者

    Gong Chengyuan; Shen Jun; Yu Yi; Wang Kaiqiang; Tu Zhengkai;

  • 作者单位

    Huazhong Univ Sci & Technol Sch Energy & Power Engn Wuhan Peoples R China;

    Huazhong Univ Sci & Technol Sch Energy & Power Engn Wuhan Peoples R China;

    Shanghai Hydrogen Prop Technol Co Ltd Business Planning & Project Management Dept Shanghai Peoples R China;

    Shanghai Hydrogen Prop Technol Co Ltd Business Planning & Project Management Dept Shanghai Peoples R China;

    Huazhong Univ Sci & Technol Sch Energy & Power Engn Wuhan Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Intake grille; radiator; heat transfer; opening angle; PEMFC;

    机译：进气格栅;散热器;传热;打开角度;PEMFC;

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