Transient CFD Heat Transfer Simulation Model of Air-Cooled Battery Packs

2020 19th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems (ITherm) Pub Date : 2020-07-01 DOI:10.1109/ITherm45881.2020.9190512

Yuanchen Hu, Xiangfei Yu, M. David, S. Ahladas, Noah Singer

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引用次数: 2

Abstract

Battery packs can be used to provide emergency during power outages to allow ride-through until restoration of backup power or alternatively, provide sufficient uptime allow the system to backup or save data and records and a safe shutdown. Using battery packs also contributes to more robust power design and higher immunity to power disturbance. Heat transfer in each battery cell as well battery packs remains a challenge because of the complex multi-physics phenomenon and heat transfer paths. temperatures rise with heat generated during both charging and discharging processes. A validated transient heat model can enable real-time temperature monitoring as well achieve better battery thermal management. A full flow and thermal transient simulation was built to investigate the heat transfer phenomenon during the discharging of forced air-cooled battery packs. This transient model is verified with experimental testing and could provide temperature predictions of air-cooled battery packs various battery powers and working conditions.

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风冷电池组瞬态CFD传热仿真模型

电池组可用于在停电期间提供紧急情况，以便在恢复备用电源之前进行运行，或者提供足够的正常运行时间，允许系统备份或保存数据和记录以及安全关闭。使用电池组也有助于更稳健的电源设计和更高的抗功率干扰能力。由于复杂的多物理场现象和热传递路径，每个电池单元和电池组的热传递仍然是一个挑战。在充电和放电过程中产生的热量使温度升高。经过验证的瞬态热模型可以实现实时温度监测，并实现更好的电池热管理。建立了全流动和热瞬态模拟，研究了强制风冷电池组放电过程中的换热现象。通过实验验证了该暂态模型的正确性，可以对不同电池功率和工况下的风冷电池组进行温度预测。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2020 19th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems (ITherm)

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