在PEM燃料电池中的流通道优化基于多目标评估.
Dong Jiang1, Fangzhou Wang1, Xianglin Li2
1School of New Energy, Harbin Institute of Technology at Weihai, 2, Wenhua Road, Weihai 264209, P. R. China.
ACS omega
|January 15, 2024
概括
在质子交换膜燃料电池 (PEMFC) 中引入通道阻塞可以提高性能. 圆阻塞提高了效率和水资源管理,为清洁能源提供了一个有前途的设计.
科学领域:
- 能源科学 能源科学
- 化学工程是化学工程的重要组成部分.
- 材料科学 材料科学 材料科学
背景情况:
- 质子交换膜燃料电池 (PEMFCs) 提供清洁和高效的能量转换.
- 能源密度有限和高成本阻碍了PEMFC的广泛采用.
- 优化PEMFC设计对于推进这项技术至关重要.
研究的目的:
- 通过调查流通道堵塞的影响来提高PEMFC的性能.
- 评估不同阻塞设计在关键绩效指标上的有效性.
- 为改善PEMFC运行提供优化的流通道设计.
主要方法:
- 模拟了五种不同的PEMFC阻塞配置.
- 应用的技术订单偏好通过相似的理想解决方案 (TOPSIS) 的多目标评估.
- 分析质量转移,水和热管理以及电化学转换效率.
主要成果:
- 堵塞的喷嘴效应改善了质量转移和水/热管理,减少了高达35.8%的液态水.
- 圆阻塞显示了电化学转换效率 (3.42%) 的最高增长.
- 托普西斯分析证实圆阻塞是最有利的设计.
结论:
- 流通道修改,特别是圆阻塞,显著提高PEMFC性能.
- 该研究提供了一个优化的PEMFC流通道设计.
- 介绍了一种新的多目标评估视角,用于PEMFCs的结构改进.
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