对空气冷却的开放阴极反子交换膜燃料电池流通道结构的优化分析
Zhijun Deng1, Qingwei Wang2, Xun Fang2
1School of Undergraduate Education, Shenzhen Polytechnic University, Shenzhen, 518055, China.
Scientific reports
|May 3, 2025
概括
在空气冷却的开放阴极质子交换膜燃料电池 (AO-PEMFCs) 中优化阴极通道设计可提高性能. 一个2.5°的曲角度提高了3.88%的输出,电压下降最小.
科学领域:
- 燃料电池技术的使用方法
- 能源转换 能源转换
- 材料科学 材料科学 材料科学
背景情况:
- 在AO-PEMFC中,阴极通道对于反应剂供应,冷却和散热至关重要,这显著影响了性能.
- 优化阴极通道几何结构对于提高燃料电池效率和功率密度至关重要.
研究的目的:
- 以数值研究阴极通道曲角度对AO-PEMFC性能的影响.
- 使用先进的建模技术,优化阴极通道尺寸 (宽度,高度,曲角度) 以提高功率密度.
主要方法:
- 对AO-PEMFC的数值模拟,使用不同的阴极通道曲角度.
- 支持向量回归和高斯过程回归代理模型的开发和培训.
- 应用遗传算法来优化通道宽度,高度和曲角度的参数.
主要成果:
- 与直通道相比,阴极曲角度为2.5°,导致性能提高3.88%,电压下降仅增加1.5%.
- 确定了阴极通道尺寸的最佳范围:宽度 (1.1-1.2毫米),高度 (1.3-1.5毫米) 和曲角度 (2.23°-2.99°).
结论:
- 阴极通道几何学显著影响AO-PEMFC的性能,特定的曲角度和尺寸产生了显著的改进.
- 优化的通道设计可确保单电池的输出功率密度至少为0.489W/cm2.
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