Numerical Modelling of Non-Isothermal Dynamics Based On Agglomerate CL In PEMFC

A non-isothermal, computational fuel cell dynamics (CFCD) modelling of proton exchange membrane fuel cells (PEMFCs) was conducted based on catalyst agglomerate framework. The presented model describes gas-, liquid- and dissolved-phase water transport simultaneously in catalyst layers (CLs) consisting of fluid, ionomer and catalyst phase. Model validations were performed with experimental data taken from literatures. With the presented model, key transport and electrochemical phenomena inside proton exchange membrane were investigated to understand the reasons for the local distribution of each phenomenon. Consequently, the optimized design of PEMFC including complicated CLs was extracted using CFD model.