Study on the Influence of Fan and Fan Cowl on Intake Air Parameters of Cooling Module

IF 1.6 4区工程技术 Q3 ENGINEERING, MECHANICAL

Journal of Thermal Science and Engineering Applications Pub Date : 2024-01-04 DOI:10.1115/1.4064423

Zhenxing Zhang, Dan Wang, Yue Guo, Lei Shen, Xiaodan Wang

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引用次数: 0

Abstract

Due to the increase in heat load, the demand for heat dissipation of the cabin cooling module has increased. The fan arrangement and the design of the fan cowl can significantly affect the intake air parameters, thereby affecting the performance of the heat exchangers. In this paper, the whole vehicle model was set up and the effect of the fan installation distance, the fan cowl coverage ratio, and the radial extension of the fan cowl outlet was researched by numerical simulation. The results show that due to the relative position of the layout of the cooling module, the effect of the fan arrangement and the fan cowl design on the intake parameters of the radiator is greater than that of the intercooler. The improvement of the air velocity uniformity can reduce the intake air average temperature for better heat dissipation, a 2% improvement in air intake velocity uniformity can lead to a 6% reduction in air intake average temperature event at a low air mass flow. The greater installation distance of the fan or the higher closing degree of the fan cowl, the more favorable intake parameters to ensure the better cooling performance of the heat exchangers. Moreover, when the fan cowl coverage ratio reaches 0.9, the air intake average temperature increases by 5.6%, which means that the fan cowl coverage should not be too high. This study will provide useful reference information for the design of cooling modules in the cabin.

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风扇和风扇罩对冷却模块进气参数的影响研究

由于热负荷的增加，机舱冷却模块的散热需求也随之增加。风扇的布置和风扇罩的设计会极大地影响进气参数，从而影响热交换器的性能。本文建立了整车模型，通过数值模拟研究了风扇安装距离、风扇罩覆盖率和风扇罩出口径向延伸率的影响。结果表明，由于冷却模块布局的相对位置，风扇布置和风扇罩设计对散热器进气参数的影响大于中冷器。进气速度均匀性的提高可以降低进气平均温度，从而达到更好的散热效果，在空气质量流量较低的情况下，进气速度均匀性提高 2% 可使进气平均温度降低 6%。风扇的安装距离越远或风扇罩的闭合度越高，进气参数就越有利，从而确保热交换器具有更好的冷却性能。此外，当风扇整流罩覆盖率达到 0.9 时，进气平均温度上升了 5.6%，这说明风扇整流罩覆盖率不宜过高。这项研究将为机舱冷却模块的设计提供有益的参考信息。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Thermal Science and Engineering Applications THERMODYNAMICSENGINEERING, MECHANICAL -ENGINEERING, MECHANICAL

CiteScore

3.60

自引率

9.50%

发文量

120

期刊介绍： Applications in: Aerospace systems; Gas turbines; Biotechnology; Defense systems; Electronic and photonic equipment; Energy systems; Manufacturing; Refrigeration and air conditioning; Homeland security systems; Micro- and nanoscale devices; Petrochemical processing; Medical systems; Energy efficiency; Sustainability; Solar systems; Combustion systems