Study on Heat Transfer and Flow Characteristics of Radiator Arrangement for Extended Range Hybrid Electric Vehicle

Yang Yu; Shen Jun; Yang Tao; Lin Jiawen; Xu Qianghui

doi:10.12465/issn.0253-4339.20240929002

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Study on Heat Transfer and Flow Characteristics of Radiator Arrangement for Extended Range Hybrid Electric Vehicle

更新时间：2026-03-30

- Study on Heat Transfer and Flow Characteristics of Radiator Arrangement for Extended Range Hybrid Electric Vehicle
- Journal of Refrigeration Vol. 47, Issue 2, Pages: 61-68(2026)
- 作者机构：
  
  1.北京理工大学机械与车辆学院制冷与低温工程研究所北京 100081
  2. 中山市北京理工大学研究院中山 528400
- 作者简介：
- 基金信息：
  
  the National Natural Science Foundation of China(52206014;52206217)
- DOI：10.12465/issn.0253-4339.20240929002
  CLC： TB61⁺1;TK124;U464.138⁺.2
- CSTR：XXXXX.XX.XXX.20240929002
- Received：29 September 2024，
  
  Revised：2024-10-14，
  
  Accepted：22 November 2024，
  
  Published：16 April 2026
- 稿件说明：
移动端阅览
杨宇,沈俊,杨焘等.增程式混合动力汽车散热器布置方式的传热流动特性研究[J].制冷学报,2026,47(02):61-68.

Yang Yu,Shen Jun,Yang Tao,et al.Study on Heat Transfer and Flow Characteristics of Radiator Arrangement for Extended Range Hybrid Electric Vehicle[J].Journal of Refrigeration,2026,47(02):61-68.
杨宇,沈俊,杨焘等.增程式混合动力汽车散热器布置方式的传热流动特性研究[J].制冷学报,2026,47(02):61-68. DOI： 10.12465/issn.0253-4339.20240929002. CSTR： XXXXX.XX.XXX.20240929002.

Yang Yu,Shen Jun,Yang Tao,et al.Study on Heat Transfer and Flow Characteristics of Radiator Arrangement for Extended Range Hybrid Electric Vehicle[J].Journal of Refrigeration,2026,47(02):61-68. DOI： 10.12465/issn.0253-4339.20240929002. CSTR： XXXXX.XX.XXX.20240929002.

摘要

面对不断增长的能源危机以及“碳中和”目标的驱动，新能源汽车已然成为当下的研究热点。然而面对热源分布复杂化和功率密度逐渐增加，给车辆散热器带来了更大的挑战。对增程式混合动力汽车的热管理系统进行了传热特性研究，设计了3种不同的冷却回路及散热器布置方式，研究得到不同散热器布置方式对传热、流动的影响，提出功率/压降效率和功率密度

来评估散热器布置的优劣。结果表明：串联方案（低温散热器、空空中冷器与高温散热器串联布置）拥有高功率密度2 862 kW/m

以及较好的功率/压降效率0.15 kW/Pa。综合考虑安装空间、压降与散热的竞争平衡关系，该方案具有最佳的综合传热流动性能。随着散热功率的增加，冷却空气和冷却液流量呈现线性增加的趋势。

Abstract

In the backdrop of the growing energy crisis and drive for carbon neutrality， new energy vehicles have become a key area of interest. However， the complexity of the heat source distribution and the gradual increase in power density pose higher challenges to vehicle radiators. In this study， the heat transfer characteristics of the thermal management system of a range-extended hybrid electric vehicle were investigated. Furthermore， three cooling circuits and radiator arrangements were designed. The effects of different radiator arrangements on the heat transfer and flow characteristics were investigated. Additionally， power/pressure drop and power density values were proposed to evaluate the advantages and disadvantages of the radiator arrangement. The results reveal that the serial case （low-temperature radiator， air-to-air intercooler， and high-temperature radiator arranged in series） displayed a high power density of 2 862 kW/m

and a better power/pressure drop ratio of 0.15 kW/Pa. It exhibited the best overall heat transfer and flow performance considering the competition balance between pressure drop and heat dissipation. With an increase in the heat transfer capacity， the cooling flow rate generally exhibited an increasing trend.

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references

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