相变材料液体冷却梯形电池组的电池热管理系统

IF 2.8 4区工程技术 Q2 ENGINEERING, MECHANICAL

Journal of Heat Transfer-transactions of The Asme Pub Date : 2023-09-08 DOI:10.1115/1.4063355

P.S.N. Masthan Vali, M. G.

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引用次数: 0

摘要

由于环保和化石燃料的潜在稀缺性，电动汽车(ev)近年来越来越受欢迎。锂离子电池(LIBs)广泛应用于电动汽车和混合动力汽车(hev)。它们具有高比电荷，高功率密度和长寿命。提出了一种基于复合相变材料(CPCM)的具有液体冷却系统的梯形电池组的革命性设计。相变材料(PCM)为石蜡(PA)，高导热颗粒为石墨粉(GSP)。CPCM由三种不同的成分制成，并在细胞之间以5mm的间隙填充。由于PCM具有低导热性，因此它充满了GSP，一种高导热颗粒。导热系数由0.25 W/m K提高到2.7 W/m K，传热速率显著提高。通过在不同的放电速率下调节不同的冷却液流速，考察了电池组的性能。实验中，在28-30℃的环境温度下，采用1C、2C、3C的放电速率。根据研究结果，基于CPCM的梯形电池组比基于PCM的电池组具有更高的传热效率。此外，具有液冷系统的BTMS实现了一致的温度分布，在所有测试条件下，最高温度保持在45℃以下的理想范围内。

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Battery Thermal Management System On Trapezoidal Battery Pack With Liquid Cooling System Utilizing Phase Change Material

Electric vehicles (EVs) have grown in popularity in recent years due to their environmental friendliness and the potential scarcity of fossil fuels. Lithium-ion batteries (LIBs) are commonly utilized in EVs and hybrid electric vehicles (HEVs). They have a high specific charge, a high density of power, and a long life. A revolutionary design of a trapezoidal battery pack with a liquid cooling system based on composite phase change material (CPCM) is proposed in this research. The phase change material (PCM) is paraffin wax (PA), and the high thermal conductivity particles are graphite powder (GSP). CPCM is made in three different compositions and is filled in between cells with a 5mm gap. Because PCM has a low thermal conductivity, it is filled with GSP, a high thermal conductive particle. The thermal conductivity is increased from 0.25 to 2.7 W/m K, which increases the heat transfer rate significantly. By adjusting different coolant flow velocities at varied discharge rates, the performance of the battery pack is examined. During the experiment, the discharge rates of 1C, 2C, and 3C were used at a 28-30 °C ambient temperature. According to the findings, a trapezoidal battery pack based on CPCM exhibits a more efficient rate of heat transfer than a battery pack based on PCM. Moreover, BTMS with a liquid cooling system achieves consistent temperature distribution, with the maximum temperature remaining within the ideal range of below 45°C under all test conditions.

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来源期刊

Journal of Heat Transfer-transactions of The Asme 工程技术-工程：机械

自引率

0.00%

发文量

182

审稿时长

4.7 months

期刊介绍： Topical areas including, but not limited to: Biological heat and mass transfer; Combustion and reactive flows; Conduction; Electronic and photonic cooling; Evaporation, boiling, and condensation; Experimental techniques; Forced convection; Heat exchanger fundamentals; Heat transfer enhancement; Combined heat and mass transfer; Heat transfer in manufacturing; Jets, wakes, and impingement cooling; Melting and solidification; Microscale and nanoscale heat and mass transfer; Natural and mixed convection; Porous media; Radiative heat transfer; Thermal systems; Two-phase flow and heat transfer. Such topical areas may be seen in: Aerospace; The environment; Gas turbines; Biotechnology; Electronic and photonic processes and equipment; Energy systems, Fire and combustion, heat pipes, manufacturing and materials processing, low temperature and arctic region heat transfer; Refrigeration and air conditioning; Homeland security systems; Multi-phase processes; Microscale and nanoscale devices and processes.