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, C. H.
N1 - Funding Information:
We are grateful to the financial support from National Science Council of Taiwan under grants NSC 94-2212-E-132-005, NSC 94-2212-E-002-008, NSC 94-2623-7-002-018, NSC 93-2212-E-002-029, and NSC 94-2622-E-002-004.
PY - 2006/9/29
Y1 - 2006/9/29
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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U2 - 10.1016/j.jpowsour.2006.01.019
DO - 10.1016/j.jpowsour.2006.01.019
M3 - Article
AN - SCOPUS:33748419608
VL - 160
SP - 50
EP - 56
JO - Journal of Power Sources
JF - Journal of Power Sources
SN - 0378-7753
IS - 1
ER -
