A computational model of a PEM fuel cell with finite vapor absorption rate
A computational model of a PEM fuel cell with finite vapor absorption rate
The paper presents a new computational model of non-steady operation of a PEM fuel cell. The model is based on the macroscopic hydrodynamic approach and assumptions of low humidity operation and one-dimensionality of transport processes. Its novelty and advantage in comparison with similar existing models is that it takes into account the finite-time equilibration between vapor and membrane-phase liquid water within the catalyst layers. The phenomenon is described using an additional parameter with the physical meaning of the typical reciprocal time of the equilibration. A computational parametric study is conducted to identify the effect of the finite-time equilibration on steady-state and transient operation of a PEM fuel cell.
PEM fuel cell, modeling, water management
92-103
Vorobev, A.
911a4e1e-0c34-4297-b52e-c22a2b9dec01
Zikanov, O.
7edaa777-6e8e-4128-af46-f0803c1374a7
Shamim, T.
05edc5df-5f6a-46c9-9891-0fac71626ddb
30 March 2007
Vorobev, A.
911a4e1e-0c34-4297-b52e-c22a2b9dec01
Zikanov, O.
7edaa777-6e8e-4128-af46-f0803c1374a7
Shamim, T.
05edc5df-5f6a-46c9-9891-0fac71626ddb
Vorobev, A., Zikanov, O. and Shamim, T.
(2007)
A computational model of a PEM fuel cell with finite vapor absorption rate.
Journal of Power Sources, 166 (1), .
(doi:10.1016/j.jpowsour.2006.12.071).
Abstract
The paper presents a new computational model of non-steady operation of a PEM fuel cell. The model is based on the macroscopic hydrodynamic approach and assumptions of low humidity operation and one-dimensionality of transport processes. Its novelty and advantage in comparison with similar existing models is that it takes into account the finite-time equilibration between vapor and membrane-phase liquid water within the catalyst layers. The phenomenon is described using an additional parameter with the physical meaning of the typical reciprocal time of the equilibration. A computational parametric study is conducted to identify the effect of the finite-time equilibration on steady-state and transient operation of a PEM fuel cell.
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Published date: 30 March 2007
Keywords:
PEM fuel cell, modeling, water management
Identifiers
Local EPrints ID: 48863
URI: http://eprints.soton.ac.uk/id/eprint/48863
ISSN: 0378-7753
PURE UUID: 61ee5366-1361-4c92-8b61-ab64d6e4f554
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Date deposited: 16 Oct 2007
Last modified: 16 Mar 2024 03:57
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Author:
O. Zikanov
Author:
T. Shamim
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