• Journal Article

Using A Quasi-Potential Transformation for Modeling Diffusion Media in Polymer-Electrolyte Fuel Cells

Citation

Weber, A. Z., & Newman, J. (2009). Using A Quasi-Potential Transformation for Modeling Diffusion Media in Polymer-Electrolyte Fuel Cells. SIAM Journal on Applied Mathematics, 70(2), 488-509.

Abstract

In this paper, a quasi-potential approach along with conformal mapping is used to model the diffusion media of a polymer-electrolyte fuel cell. This method provides a series solution that is grid independent and only requires integration along a single boundary to solve the problem. The approach accounts for nonisothermal phenomena, two-phase flow, correct placement of the electronic potential boundary condition, and multilayer media. The method is applied to a cathode diffusion medium to explore the interplay between water and thermal management and performance, the impact of the rib-to-channel ratio, and the existence of diffusion under the rib and flooding phenomena