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.
BT - SIAM Journal on Applied Mathematics DA - 07/2009 DO - 10.1137/08071973X IS - 2 LA - eng N2 -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.
PY - 2009 SP - 488 EP - 509 ST - SIAM J. Appl. Math. T2 - SIAM Journal on Applied Mathematics TI - Using a Quasi-Potential Transformation for Modeling Diffusion Media in Polymer-Electrolyte Fuel Cells VL - 70 SN - 0036-1399 ER -