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  • Open Access


    Research on Performance Optimization of Liquid Cooling and Composite Phase Change Material Coupling Cooling Thermal Management System for Vehicle Power Battery

    Gang Wu1,2,*, Feng Liu1,2, Sijie Li1,2, Na Luo1,2, Zhiqiang Liu1,2, Yuqaing Li2,3

    Journal of Renewable Materials, Vol.11, No.2, pp. 707-730, 2023, DOI:10.32604/jrm.2022.022276

    Abstract The serpentine tube liquid cooling and composite PCM coupled cooling thermal management system is designed for 18650 cylindrical power batteries, with the maximum temperature and temperature difference of the power pack within the optimal temperature operating range as the target. The initial analysis of the battery pack at a 5C discharge rate, the influence of the single cell to cooling tube distance, the number of cooling tubes, inlet coolant temperature, the coolant flow rate, and other factors on the heat dissipation performance of the battery pack, initially determined a reasonable value for each design parameter. A control strategy is used… More >

  • Open Access


    Fly Ash/Paraffin Composite Phase Change Material Used to Treat Thermal and Mechanical Properties of Expansive Soil in Cold Regions

    Yong Chen1, Yinghao Huang1,2,*, Min Wu1 and Shuo Wang1

    Journal of Renewable Materials, Vol.10, No.4, pp. 1153-1173, 2022, DOI:10.32604/jrm.2022.018856

    Abstract Phase change materials (PCMs) can store large amounts of energy in latent heat and release it during phase changes, which could be used to improve the freeze-thaw performance of soil. The composite phase change material was prepared with paraffin as the PCM and 8% Class C fly ash (CFA) as the supporting material. Laboratory tests were conducted to reveal the influence of phase change paraffin composite Class C fly ash (CFA-PCM) on the thermal properties, volume changes and mechanical properties of expansive soil. The results show that PCM failed to establish a good improvement effect due to leakage. CFA can… More >

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