基于蜂窝状流场结构电解池性能研究

Research on the Performance of Electrolytic Cell Based on Honeycomb Flow Field Structure

质子交换膜电解水制氢技术在制氢领域有着广泛的发展前景,为深入研究该技术,文章使用商业软件Comsol Multiphysics建立一个考虑膜内水分输运的三维、两相、非等温全耦合质子交换膜电解池模型,以精确地描述电解池在实际运行中的传输反应性能。研究结果显示,虽然性能和直通道结构区别不大,但是高电压下膜具有更低的温度,这可以提高电解池高压运行下的寿命,并揭示了流量的电解池性能,温度水含量的影响。以及电解内部温度分布情况,最后分析了电解池内电解质电导率的变化趋势。

Proton exchange membrane electrolysis for hydrogen production has a broad development pro-spect in the field of hydrogen production. In order to further study this technology, a 3D, two-phase, non-isothermal fully coupled proton exchange membrane electrolysis cell model considering water transport in the membrane was established by using commercial software Comsol Multiphysics in order to accurately describe the transmission reaction performance of the electrolytic cell in actual operation. The results show that although there is little difference in performance and through-channel structure, the membrane has a lower temperature at high voltage, which can im-prove the life of the electrolytic cell under high voltage operation, and reveal the influence of flow rate on the electrolytic cell performance and temperature water content. The temperature distri-bution inside the electrolytic cell was also analyzed. Finally, the changing trend of electrolyte con-ductivity in the cell was analyzed.