Journal of Shandong University(Engineering Science) ›› 2026, Vol. 56 ›› Issue (5): 182-191.doi: 10.6040/j.issn.1672-3961.0.2025.061

• Mechanical, Energy and Power Engineering • Previous Articles    

Single-phase numerical simulation research of plate-fin heat exchangers for new energy vehicles

Qu Huige1, Liu Yan2, An Chunguo1, Li Kefeng3, Zhang Jingzhi2*   

  1. Qu Huige1, Liu Yan2, An Chunguo1, Li Kefeng3, Zhang Jingzhi2*(1. Shandong Electric Power Engineering Consulting Institute Co., Ltd., Jinan 250013, Shandong, China;
    2. School of Nuclear Science, Energy and Power Engineering, Shandong University, Jinan 250061, Shandong, China;
    3. Liaocheng Jixing New Energy Technology Co. Ltd., Liaocheng 252100, Shandong, China
  • Published:2026-10-19

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Abstract: Numerical simulation analysis of single-phase flow and heat transfer in fin channels of plate-fin heat exchangers was conducted to investigate the velocity distribution, average surface heat transfer coefficient, and pressure drop characteristics of plain and serrated fins, as well as serrated fins with different structural parameters. CFD software with the shear stress transport(SST)k-ω turbulence model was employed to numerically simulate the single-phase heat transfer flow of a 50% ethylene glycol aqueous solution in the fin channels, and experimental validation was performed. The results showed that the fin type and structural parameters significantly influenced the flow and heat transfer, with serrated fins exhibiting better flow and heat transfer characteristics than plain fins. By altering the structural parameters of the serrated fins, it was found that an increase in flow velocity led to a rise in both heat transfer and pressure drop. Reducing the fin height, spacing, or discontinuity length, or increasing the fin thickness, was beneficial for heat transfer, but also resulted in an increase in pressure drop.

Key words: plate-fin heat exchanger, new energy vehicles, serrated fins, single-phase heat transfer, numerical simulation

CLC Number: 

  • TK124
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