Journal
ELECTROCHIMICA ACTA
Volume 54, Issue 2, Pages 311-315Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2008.07.084
Keywords
Polymer-electrolyte fuel cell; Mathematical modeling; Conformal mapping; Gas-diffusion layer; Diffusion medium
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In this manuscript, conformal mapping is applied to a rib/channel domain of a polymer-electrolyte-fuel-cell diffusion medium. The analysis leads to the calculation of an effective diffusion-medium thickness, which can subsequently be used in 1 D simulations to account for the average rib/channel 2D geometric effect. Extensions of the analysis to anisotropic and multilayer diffusion media are also given. Both equations and figures show the impact on a given variable at the catalyst layer of having a combined conducting/nonconducting boundary across from it. (c) 2008 Elsevier Ltd. All rights reserved.
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