An analytical solution for transport of oxygen in cathode gas diffusion layer of PEMFC

C. R. Tsai, Falin Chen, A. C. Ruo, Min Hsing Chang, Hsin Sen Chu, C. Y. Soong, W. M. Yan, Chin-Hsiang Cheng

研究成果: Article

2 引文 (Scopus)

摘要

A two-dimensional theoretical model is developed in this study to simulate the transport phenomena of oxygen in cathode gas diffusion layer (GDL) of proton exchange membrane fuel cell (PEMFC). An analytical solution is then obtained accordingly to characterize the effects of GDL on cell performance. It is found that the concentration flux of oxygen across the GDL is primarily dominated by the thickness and porosity of GDL. For a thicker GDL, the diffusion resistance increases and thus lowers the cell performance especially under high current density condition. On the other hand, an increase of porosity will enhance the transport of oxygen and result in significant improvement of cell performance. The influences of system parameters including the temperature, channel height, inlet velocity, and inlet pressure on the diffusion of oxygen in GDL are also examined systematically. Results provide insights into the characteristics of oxygen diffusion in GDL and benefit the optimal design of PEMFC.

原文English
頁(從 - 到)2179-2192
頁數14
期刊International Journal of Hydrogen Energy
31
發行號15
DOIs
出版狀態Published - 2006 一月 1

指紋

gaseous diffusion
Diffusion in gases
Proton exchange membrane fuel cells (PEMFC)
fuel cells
Cathodes
cathodes
membranes
Oxygen
protons
oxygen
cells
inlet pressure
Porosity
porosity
high current
Current density
current density
Fluxes

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

引用此文

Tsai, C. R. ; Chen, Falin ; Ruo, A. C. ; Chang, Min Hsing ; Chu, Hsin Sen ; Soong, C. Y. ; Yan, W. M. ; Cheng, Chin-Hsiang. / An analytical solution for transport of oxygen in cathode gas diffusion layer of PEMFC. 於: International Journal of Hydrogen Energy. 2006 ; 卷 31, 編號 15. 頁 2179-2192.
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abstract = "A two-dimensional theoretical model is developed in this study to simulate the transport phenomena of oxygen in cathode gas diffusion layer (GDL) of proton exchange membrane fuel cell (PEMFC). An analytical solution is then obtained accordingly to characterize the effects of GDL on cell performance. It is found that the concentration flux of oxygen across the GDL is primarily dominated by the thickness and porosity of GDL. For a thicker GDL, the diffusion resistance increases and thus lowers the cell performance especially under high current density condition. On the other hand, an increase of porosity will enhance the transport of oxygen and result in significant improvement of cell performance. The influences of system parameters including the temperature, channel height, inlet velocity, and inlet pressure on the diffusion of oxygen in GDL are also examined systematically. Results provide insights into the characteristics of oxygen diffusion in GDL and benefit the optimal design of PEMFC.",
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An analytical solution for transport of oxygen in cathode gas diffusion layer of PEMFC. / Tsai, C. R.; Chen, Falin; Ruo, A. C.; Chang, Min Hsing; Chu, Hsin Sen; Soong, C. Y.; Yan, W. M.; Cheng, Chin-Hsiang.

於: International Journal of Hydrogen Energy, 卷 31, 編號 15, 01.01.2006, p. 2179-2192.

研究成果: Article

TY - JOUR

T1 - An analytical solution for transport of oxygen in cathode gas diffusion layer of PEMFC

AU - Tsai, C. R.

AU - Chen, Falin

AU - Ruo, A. C.

AU - Chang, Min Hsing

AU - Chu, Hsin Sen

AU - Soong, C. Y.

AU - Yan, W. M.

AU - Cheng, Chin-Hsiang

PY - 2006/1/1

Y1 - 2006/1/1

N2 - A two-dimensional theoretical model is developed in this study to simulate the transport phenomena of oxygen in cathode gas diffusion layer (GDL) of proton exchange membrane fuel cell (PEMFC). An analytical solution is then obtained accordingly to characterize the effects of GDL on cell performance. It is found that the concentration flux of oxygen across the GDL is primarily dominated by the thickness and porosity of GDL. For a thicker GDL, the diffusion resistance increases and thus lowers the cell performance especially under high current density condition. On the other hand, an increase of porosity will enhance the transport of oxygen and result in significant improvement of cell performance. The influences of system parameters including the temperature, channel height, inlet velocity, and inlet pressure on the diffusion of oxygen in GDL are also examined systematically. Results provide insights into the characteristics of oxygen diffusion in GDL and benefit the optimal design of PEMFC.

AB - A two-dimensional theoretical model is developed in this study to simulate the transport phenomena of oxygen in cathode gas diffusion layer (GDL) of proton exchange membrane fuel cell (PEMFC). An analytical solution is then obtained accordingly to characterize the effects of GDL on cell performance. It is found that the concentration flux of oxygen across the GDL is primarily dominated by the thickness and porosity of GDL. For a thicker GDL, the diffusion resistance increases and thus lowers the cell performance especially under high current density condition. On the other hand, an increase of porosity will enhance the transport of oxygen and result in significant improvement of cell performance. The influences of system parameters including the temperature, channel height, inlet velocity, and inlet pressure on the diffusion of oxygen in GDL are also examined systematically. Results provide insights into the characteristics of oxygen diffusion in GDL and benefit the optimal design of PEMFC.

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