化工进展2024，Vol.43Issue(9)：4800-4809,10.DOI:10.16085/j.issn.1000-6613.2023-1450
质子交换膜燃料电池浆料混合过程数值模拟
Numerical simulation of proton exchange membrane fuel cell catalyst ink mixing process
摘要
Abstract
In this paper,the mixing process of the catalyst ink for proton exchange membrane fuel cell is investigated.The relationship between the rheological properties and density of the ink and the volume fraction of platinum-carbon particles is experimentally determined.A three-phase multiphase flow model for the mixing process is developed specifically for the preparation of polymer electrolyte fuel cell ink.Numerical simulations are performed to analyze the flow field and dispersion characteristics of platinum-carbon particles considering the influence of both blade stirring and high-speed shear dispersion.The results suggest that the large-scale flow structures generated by the mixing blade are ineffective in preventing the settling of platinum-carbon particles.However,by introducing a high-speed shear dispersion device,the settling of platinum-carbon particles can be alleviated to some extent.Additionally,the dispersion characteristics of platinum-carbon particles in the flow field can be improved due to the mixing effect of this device.The results could provide an important guide for the design and improvement of ink-mixing devices,and offer substantial theoretical support for the efficient preparation of catalyst ink for proton exchange membrane fuel cells.关键词
燃料电池/计算流体力学/多相流/混合/流变学Key words
fuel cell/computational fluid dynamics/multiphase flow/mixing/rheology分类
化学化工引用本文复制引用
李晟,陈亚舟,姜威,彭杰,樊采薇,邵孟..质子交换膜燃料电池浆料混合过程数值模拟[J].化工进展,2024,43(9):4800-4809,10.基金项目
国家重点研发计划(2021YFB3800400). （2021YFB3800400）
