Numerical analysis of water transport through the membrane electrolyte assembly of a polymer exchange membrane fuel cell
Numerical analysis of water transport through the membrane electrolyte assembly of a polymer exchange membrane fuel cell
The effects of water transport through membrane electrolyte assembly of a polymer exchange membrane fuel cell on cell performance has been studied by a one-dimensional, nonisothermal, steady-state model. Three forms of water are considered in the model: dissolved water in the electrolyte or membrane, and liquid water and water vapor in the void space. Phase changes among these three forms of water are included based on the corresponding local equilibriums between the two involved forms.
Water transport and its effect on cell performance have been discussed under different operating conditions by using the value and the sign of the net water transport coefficient, which is defined by the net flux of water transported from the anode side to the cathode side per proton flux. Optimal cell performance can be obtained by adjusting the liquid water saturation at the interface of the cathode gas diffusion layer and flow channels.
021009-021022
Zhang, Xu
50925f96-e46c-475d-9059-07a0fb66702b
Song, Datong
d27515dd-7ee5-4bc1-a9cb-7a707c6f6045
Wang, Qianpu
85c5a3b5-9927-4f21-8487-70bbc2c8cb41
Huang, Chen
eb0d6107-8f91-4503-abf6-06623606e428
Liu, Zhong-Sheng
d4c92e09-56b2-4b50-8a30-9f38fb71d7ab
Shah, A.A.
5c43ac37-c4a7-4256-88ef-8c427886b924
6 January 2010
Zhang, Xu
50925f96-e46c-475d-9059-07a0fb66702b
Song, Datong
d27515dd-7ee5-4bc1-a9cb-7a707c6f6045
Wang, Qianpu
85c5a3b5-9927-4f21-8487-70bbc2c8cb41
Huang, Chen
eb0d6107-8f91-4503-abf6-06623606e428
Liu, Zhong-Sheng
d4c92e09-56b2-4b50-8a30-9f38fb71d7ab
Shah, A.A.
5c43ac37-c4a7-4256-88ef-8c427886b924
Zhang, Xu, Song, Datong, Wang, Qianpu, Huang, Chen, Liu, Zhong-Sheng and Shah, A.A.
(2010)
Numerical analysis of water transport through the membrane electrolyte assembly of a polymer exchange membrane fuel cell.
Journal of Fuel Cell Science and Technology, 7 (2), .
(doi:10.1115/1.3177448).
Abstract
The effects of water transport through membrane electrolyte assembly of a polymer exchange membrane fuel cell on cell performance has been studied by a one-dimensional, nonisothermal, steady-state model. Three forms of water are considered in the model: dissolved water in the electrolyte or membrane, and liquid water and water vapor in the void space. Phase changes among these three forms of water are included based on the corresponding local equilibriums between the two involved forms.
Water transport and its effect on cell performance have been discussed under different operating conditions by using the value and the sign of the net water transport coefficient, which is defined by the net flux of water transported from the anode side to the cathode side per proton flux. Optimal cell performance can be obtained by adjusting the liquid water saturation at the interface of the cathode gas diffusion layer and flow channels.
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Published date: 6 January 2010
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Local EPrints ID: 155003
URI: http://eprints.soton.ac.uk/id/eprint/155003
PURE UUID: f2db8f90-bea8-4248-98fc-5b93c749272f
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Date deposited: 26 May 2010 15:27
Last modified: 14 Mar 2024 01:36
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Author:
Xu Zhang
Author:
Datong Song
Author:
Qianpu Wang
Author:
Chen Huang
Author:
Zhong-Sheng Liu
Author:
A.A. Shah
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