Zhou Jiaxu, Deng Huichao, Xue Rui, Zhang Yufeng
School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, China.
China Nanhu Academy of Electronics and Information Technology, Jiaxing 314001, China.
Micromachines (Basel). 2023 Jan 22;14(2):286. doi: 10.3390/mi14020286.
The open-cathode forced-convection proton exchange membrane fuel cell has emerged as a viable option for portable energy sources. The forced-convection open-cathode mode, however, makes the cell's performance sensitive to changes in the cathode channel and fan parameters. In this study, small fuel cell stacks with varying cathode channel depths, widths, and width-rib ratios were assembled, and the effects of different cathode channel parameters and fan duty ratios on cell performance were investigated. The experimental results show that changing the cathode channel parameters has a significant impact on oxidant supply. When the channel width is increased, the cell performance increases first, then decreases. The cell performance decreases as the channel width-rib ratio increases. The performance of the cell improves as the cathode channel depth increases. Furthermore, the experimental results show that decreasing the duty ratio of the fan and using moderate heating improves cell performance.
开放式阴极强制对流质子交换膜燃料电池已成为便携式能源的一个可行选择。然而，强制对流开放式阴极模式使电池性能对阴极通道和风扇参数的变化敏感。在本研究中，组装了具有不同阴极通道深度、宽度和宽肋比的小型燃料电池堆，并研究了不同阴极通道参数和风扇占空比对电池性能的影响。实验结果表明，改变阴极通道参数对氧化剂供应有显著影响。当通道宽度增加时，电池性能先增加后降低。电池性能随着通道宽肋比的增加而降低。电池性能随着阴极通道深度的增加而提高。此外，实验结果表明，降低风扇占空比并采用适度加热可提高电池性能。
