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| 新能源汽车动力电池冷却系统热仿真及优化 |
| Thermal simulation and optimization of power battery cooling system in a new energy vehicle |
| 投稿时间：2022-06-14 |
| DOI：10.13259/j.cnki.eri.2023.03.007 |
| 中文关键词: 新能源汽车|动力电池|电池散热|Fluent软件|热仿真|优化设计 |
| 英文关键词:new energy|power battery|heat dissipation of battery|Fluent software|thermal simulation|optimization design |
| 基金项目: |
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| 中文摘要: |
| 动力电池的温度控制是新能源汽车发展中的一个难题，而电池冷却系统在动力电池的温度控制过程中起着相当重要的作用。利用Solidworks软件对电池包进行建模，利用ICEM CFD软件对电池包模型进行网格划分等前处理。利用Fluent软件并采用控制变量法分别对冷却管道截面宽度、冷却液质量流量和冷却液进口温度等3个对电池包散热性能影响较大的参数进行仿真计算和对比分析。根据仿真结果选择可优化电池包散热性能的参数，并在原方案基础上提出了一种新的冷却管道分布方案。经过仿真计算发现，该方案可有效降低电池在使用过程中的最高温度和温差，提高了电池冷却系统的散热性能。 |
| 英文摘要: |
| It is difficult to control the temperature of power battery in the development of new energy vehicles. The battery cooling system plays an important role in the temperature control of power battery. A battery pack model was built by SolidWorks software, and its meshing was performed by ICEM CFD software. The influence of cross-section width of cooling pipe, coolant mass flow, and coolant inlet temperature on the heat dissipation of the battery pack was numerically simulated and comparatively analyzed. According to the simulation results, the influential factors were optimized for better heat dissipation performance. And a new cooling pipe arrangement was proposed. It can be obtained that the proposal can effectively reduce the maximum temperature and temperature difference of the battery in operation, which improves the heat dissipation performance of the battery cooling system. |
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