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The Battery Cooling Design and Simulation Study in Multirotor eVTOL Aircraft

Linato Shao, Auhuan Xie, Jiandong Cai, Yunzheng Zhu, Shiqiang Zhu, Zhejiang University

https://doi.org/10.4050/F-0079-2023-18051

Abstract:
High-specific energy Li-ion batteries are widely used in eVTOL aircraft and usually rapidly heat up during flight. Therefore, proper and efficient cooling strategies should be adopted during eVTOL design in order to prevent overheating. This paper collected and compared the battery cooling strategies adopted by different eVTOL aircraft manufacturers based on published patents. The choice of battery cooling strategies could be influenced by aircraft configurations. The ZJCopter eVTOL aircraft developed by Zhejiang Lab adopted the PCM cooling method as a fast-cooling and lightweight battery cooling strategy. The effectiveness of this cooling method was demonstrated by comparing it with air cooling method through simulation, which showed that the PCM cooling method can reduce the average and maximum temperatures of the battery. Moreover, increasing the heat transfer area and thickness of the PCM layers could improve the cooling effect even further.


The Battery Cooling Design and Simulation Study in Multirotor eVTOL Aircraft

  • Presented at Forum 79
  • 6 pages
  • SKU # : F-0079-2023-18051
  • Electric VTOL

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The Battery Cooling Design and Simulation Study in Multirotor eVTOL Aircraft

Authors / Details:
Linato Shao, Auhuan Xie, Jiandong Cai, Yunzheng Zhu, Shiqiang Zhu, Zhejiang University