Transient non-isothermal model of a polymer electrolyte fuel cell
Transient non-isothermal model of a polymer electrolyte fuel cell
In this paper we present a one-dimensional transient model for the membrane electrode assembly of a polymer-electrolyte fuel cell. In earlier work we established a framework to describe the water balance in a steady-state, non-isothermal cathode model that explicitly included an agglomerate catalyst layer component. This paper extends that work in several directions, explicitly incorporating components of the anode, including a micro-porous layer, and accounting for electronic potential variations, gas convection and time dependence. The inclusion of temperature effects, which are vital to the correct description of condensation and evaporation, is new to transient modelling. Several examples of the modelling results are given in the form of potentiostatic sweeps and compared to experimental results. Excellent qualitative agreement is demonstrated, particularly in regard to the phenomenon of hysteresis, a manifestation of the sensitive response of the system to the presence of water. Results pertaining to pore size, contact angle and the presence of a micro-porous layer are presented and future work is discussed.
Fuel cell, Polymer-electrolyte, Transient model, Sweep simulations, Liquid water, Performance
793-806
Shah, A.A.
5c43ac37-c4a7-4256-88ef-8c427886b924
Kim, G.S.
644f774b-0e19-4d52-813b-439ddfe38166
Sui, P.C.
5ceeeb25-0d47-4cfd-9f53-5e99ab617546
Harvey, D.
283d0590-dca7-4cb6-a79d-a96dad5aa53c
1 January 2007
Shah, A.A.
5c43ac37-c4a7-4256-88ef-8c427886b924
Kim, G.S.
644f774b-0e19-4d52-813b-439ddfe38166
Sui, P.C.
5ceeeb25-0d47-4cfd-9f53-5e99ab617546
Harvey, D.
283d0590-dca7-4cb6-a79d-a96dad5aa53c
Shah, A.A., Kim, G.S., Sui, P.C. and Harvey, D.
(2007)
Transient non-isothermal model of a polymer electrolyte fuel cell.
Journal of Power Sources, 163 (2), .
(doi:10.1016/j.jpowsour.2006.09.022).
Abstract
In this paper we present a one-dimensional transient model for the membrane electrode assembly of a polymer-electrolyte fuel cell. In earlier work we established a framework to describe the water balance in a steady-state, non-isothermal cathode model that explicitly included an agglomerate catalyst layer component. This paper extends that work in several directions, explicitly incorporating components of the anode, including a micro-porous layer, and accounting for electronic potential variations, gas convection and time dependence. The inclusion of temperature effects, which are vital to the correct description of condensation and evaporation, is new to transient modelling. Several examples of the modelling results are given in the form of potentiostatic sweeps and compared to experimental results. Excellent qualitative agreement is demonstrated, particularly in regard to the phenomenon of hysteresis, a manifestation of the sensitive response of the system to the presence of water. Results pertaining to pore size, contact angle and the presence of a micro-porous layer are presented and future work is discussed.
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Submitted date: 21 July 2006
Published date: 1 January 2007
Keywords:
Fuel cell, Polymer-electrolyte, Transient model, Sweep simulations, Liquid water, Performance
Identifiers
Local EPrints ID: 44773
URI: http://eprints.soton.ac.uk/id/eprint/44773
ISSN: 0378-7753
PURE UUID: 2f79e2bc-0f2a-4310-ad67-a6b37b09ca79
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Date deposited: 15 Mar 2007
Last modified: 15 Mar 2024 09:07
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Contributors
Author:
A.A. Shah
Author:
G.S. Kim
Author:
P.C. Sui
Author:
D. Harvey
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