优化空气冷却离子电池组与 vortex 发电机的热性能,以实现更清洁的能源存储
Bonashree Gogoi1, Hiranya Deka2, Bhaskor Jyoti Bora3
1Energy Institute Bengaluru, A Centre of Rajiv Gandhi Institute of Petroleum Technology, Bengaluru, Karnataka, 562157, India.
Scientific reports
|July 15, 2025
概括
采用多个流发电机 (MVG) 的创新空气冷却可显著降低电池组温度. 优化的MVG放置和角度提高了散热,并确保电池热管理系统的均温度分布.
科学领域:
- 热管理 热管理
- 空气动力学 在空气动力学.
- 储能系统 储能系统 储能系统
背景情况:
- 空气冷却是一种具有成本效益的热管理方法,但往往缺乏高散热率.
- 创新的空气冷却技术对于提高电池组 (BP) 的冷却性能至关重要.
- 优化电池组设计和空气流量是改善热管理系统 (BTMS) 的关键.
研究的目的:
- 研究T形管道中的多重旋发生器 (MVG) 的有效性,以改善镜电池电池组中的空气冷却.
- 分析MVG倾斜角度和位置对电池组内的温度降低和分布的影响.
- 为了将修改后的电池组设计的热性能与基线模型进行比较.
主要方法:
- 使用ANSYS Fluent软件进行计算流体动力学 (CFD) 模拟.
- 一个对称的T型管道与反旋转的MVG被设计和分析.
- 参数变化包括MVG倾斜角度 (45°,60°,75°),距入口距离,入口温度和入口速度.
主要成果:
- 与基线相比,采用MVG的电池组布局显示了显著的温度降低.
- 最佳的MVG放置和60°倾斜角度导致流增加,空气流混合改善,温度分布均 (单元之间5-7°C的差异).
- 在45度的角度放置在电池组附近的MVG显示了累积热量的最显著减少.
结论:
- 在空气冷却管道通道中集成MVG可大大提高电池热管理系统的热性能.
- 用MVG修改的电池组设计实现了显著的温度下降,单个电池在2.5C的速度下降了7°C.
- MVG技术为电池应用中高效和成本效益的热管理提供了一个有前途的解决方案.
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