A multi-resolution method is developed for the polymer electrolyte membrane (PEM) fuel cell simulation. A full 3D modeling is employed for membrane and diffusion layer, 1D+2D model is applied to the catalyst layer, that is, at each location of the fuel cell plate, the governing equations are integrated only in the direction perpendicular to the fuel cell plate; and a quasi-1D method with high numerical efficiency and reasonable accuracy is employed for the flow channels. The simulation accuracy was assessed in terms of fuel cell polarization curves and membrane ohmic overpotential. Overall, the agreements between simulated results and experimental data are good. However, at large current densities, when high relative humidity reactant inputs are employed, the simulation under predicts the fuel cell performance due to a single-phase assumption. The method slightly over predicts the fuel cell performance for a dry cathode input, possibly due to the nonlinearity of the membrane properties in dehydration case. Further, a parameter study was performed for a fully humidified cell and a relative dry cell. These parameters include porosity and permeability of gas diffusion layer; porosity, effective oxygen permeability, ratio of thickness of surrounding Nafion layer to exposed agglomerate area density and cathodic transfer coefficient of catalyst layer. Some insight can be obtained by examining their effects on the cell performances in order to further improve the model accuracy.
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ASME 2005 3rd International Conference on Fuel Cell Science, Engineering and Technology
May 23–25, 2005
Ypsilanti, Michigan, USA
Conference Sponsors:
- Nanotechnology Institute
ISBN:
0-7918-3764-5
PROCEEDINGS PAPER
PEM Fuel Cell Models Validation and Accuracy Analysis Available to Purchase
Qingyun Liu,
Qingyun Liu
Mississippi State University, Mississippi State, MS
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Qiangu Yan,
Qiangu Yan
Mississippi State University, Mississippi State, MS
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Junxiao Wu
Junxiao Wu
Mississippi State University, Mississippi State, MS
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Qingyun Liu
Mississippi State University, Mississippi State, MS
Qiangu Yan
Mississippi State University, Mississippi State, MS
Junxiao Wu
Mississippi State University, Mississippi State, MS
Paper No:
FUELCELL2005-74088, pp. 111-122; 12 pages
Published Online:
October 13, 2008
Citation
Liu, Q, Yan, Q, & Wu, J. "PEM Fuel Cell Models Validation and Accuracy Analysis." Proceedings of the ASME 2005 3rd International Conference on Fuel Cell Science, Engineering and Technology. 3rd International Conference on Fuel Cell Science, Engineering and Technology. Ypsilanti, Michigan, USA. May 23–25, 2005. pp. 111-122. ASME. https://doi.org/10.1115/FUELCELL2005-74088
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