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Simplified Model for Oxygen Transport With Reaction in a Polymer‐Electrolyte Fuel Cell
Author(s) -
Forney Larry J.,
Brown J. Michael,
Kadlubowski Bryan M.,
Sommerfeld Jude T.
Publication year - 2005
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450830313
Subject(s) - chemistry , electrolyte , oxygen transport , oxygen , proton exchange membrane fuel cell , fuel cells , thermodynamics , catalysis , physics , electrode , chemical engineering , organic chemistry , engineering
Abstract A simplified mathematical model for an ion‐exchange membrane attached to a gas‐fed porous electrode is developed to simulate the oxygen electrode of a solid‐polymer‐electrolyte fuel cell. In particular, the present model is derived from an earlier rigorous one of Bernardi and Verbrugge(1991) by neglecting the Peclet number for the transport of dissolved oxygen within the catalyst. The advantage of this simpler model is that it can be solved analytically, eliminating the need for numerical simulation. Longitudinal profiles for the dissolved oxygen concentration and catalyst current density calculated from the present model are in good agreement with results from the earlier rigorous model.