摘要
合适的流场能提高燃料电池性能以及燃料的利用率,仿真模拟可以作为流场板设计与优化的重要工具。通过Fluent软件,对509 cm^(2)的大面积燃料电池进行了101和200 kPa两种不同操作压力下的数值模拟。仿真结果表明:在不同的操作压力下,燃料浓度沿流动方向均呈现出降低的趋势,并且随着操作压力的增加,各组件的气体分布均匀性更高,燃料电池的输出电流密度也越高。燃料电池仿真的极化曲线与实验结果吻合较好,该电池结构在燃料电池实际工程化应用方面具有一定的参考价值。
Appropriate flow field can improve fuel cell performance and fuel utilization rate. Simulation can be used as an important tool for flow field plate design and optimization. Through the Fluent software, this paper carried out the numerical simulation of the 509 cm^(2) large area fuel cell at two different operating pressures of 101 kPa and 200kPa. Under different operating pressures, the fuel concentration shows a decreasing trend along the flow direction,and as the operating pressure increases, the gas distribution uniformity of each component is higher, and the output current density of the fuel cell is higher. The polarization curve of fuel cell simulation is in good agreement with the experimental results, so the structure of proton exchange membrane fuel cell with large area bipolar plate in this paper has a certain reference value in the practical engineering application of fuel cell.
作者
王国庆
何振峰
王超
王学科
WANG Guoqing;HE Zhenfeng;WANG Chao;WANG Xueke(School of Chemical Engineering and Technology,North University of China,Taiyuan Shanxi 030051,China;College of Materials Science and Engineering,North University of China,Taiyuan Shanxi 030051,China;Beijing Space Launch Technology Research Institute,Beijing 100076,China)
出处
《电源技术》
CAS
北大核心
2023年第1期75-78,共4页
Chinese Journal of Power Sources
基金
山西省科技重大专项(20181102019)
山西省高等学校科技成果转化培育项目(2020CG039)。
关键词
燃料电池
膜
大面积双极板
仿真
fuel cells
membrane
large area bipolar plate
simulation
