Using a Quasipotential Transformation for Modeling Diffusion Media in Polymer-Electrolyte Fuel Cells
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Using a Quasipotential Transformation for Modeling Diffusion Media in Polymer-Electrolyte Fuel Cells

  • Author(s): Weber, Adam Z.
  • et al.
Abstract

In this paper, a quasipotential 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.

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