A computational model is developed for a PEM unit cell capable of describing the reactions that occur in the cell in understoich conditions. Such conditions can occur as a result of reactant supply system failure (blockage, leaks, system control, etc.). The model applies to cells with straight channels, and mass transport in the MEA (membrane crossover as well as transport through the GDE) in the channel cross-plane is described only in an average sense assuming linear diffusive mechanisms. Several other major assumptions are made, the most significant being that the cell is always at saturated conditions and is taken to be isothermal. Several electrochemical and mass transport coefficients are not available in the literature and “best guesses” are taken. The results of the model are not yet validated experimentally. However, it is the first model proposed that captures these phenomena in a comprehensive way at the local level and also couples the phenomena through channel flow. Cathode understoich results show the expected Hydrogen evolution at the cathode. Anode understoich results show anode Carbon oxidation. An interesting third run is shown where at low currents, a partial anode understoich condition occurs where the cell voltage remains positive, but the anode is starved of Hydrogen near outlet. Carbon corrosion at the cathode occurs in this case.
Skip Nav Destination
ASME 2006 4th International Conference on Fuel Cell Science, Engineering and Technology
June 19–21, 2006
Irvine, California, USA
Conference Sponsors:
- Nanotechnology Institute
ISBN:
0-7918-4247-9
PROCEEDINGS PAPER
PEM Unit Cell Model Considering Additional Reactions Available to Purchase
Brian Wetton,
Brian Wetton
University of British Columbia, Vancouver, BC, Canada
Search for other works by this author on:
Gwang-Soo Kim,
Gwang-Soo Kim
Ballard Power Systems, Burnaby, BC, Canada
Search for other works by this author on:
Keith Promislow,
Keith Promislow
Michigan State University, East Lansing, MI
Search for other works by this author on:
Jean St-Pierre
Jean St-Pierre
Ballard Power Systems, Burnaby, BC, Canada
Search for other works by this author on:
Brian Wetton
University of British Columbia, Vancouver, BC, Canada
Gwang-Soo Kim
Ballard Power Systems, Burnaby, BC, Canada
Keith Promislow
Michigan State University, East Lansing, MI
Jean St-Pierre
Ballard Power Systems, Burnaby, BC, Canada
Paper No:
FUELCELL2006-97027, pp. 55-61; 7 pages
Published Online:
September 15, 2008
Citation
Wetton, B, Kim, G, Promislow, K, & St-Pierre, J. "PEM Unit Cell Model Considering Additional Reactions." Proceedings of the ASME 2006 4th International Conference on Fuel Cell Science, Engineering and Technology. ASME 2006 Fourth International Conference on Fuel Cell Science, Engineering and Technology, Parts A and B. Irvine, California, USA. June 19–21, 2006. pp. 55-61. ASME. https://doi.org/10.1115/FUELCELL2006-97027
Download citation file:
7
Views
Related Proceedings Papers
Fuel Processing for Fuel Cell Applications
FUELCELL2004
Related Articles
Electrochemical Impedance Parameters for the Diagnosis of a Polymer Electrolyte Fuel Cell Poisoned by Carbon Monoxide in Reformed Hydrogen Fuel
J. Fuel Cell Sci. Technol (November,2008)
Ce 0.8 M 0.2 O 2 − δ ( M = Mn , Fe , Ni , Cu ) as SOFC Anodes for Electrochemical Oxidation of Hydrogen and Methane
J. Fuel Cell Sci. Technol (August,2008)
Using a Stack Shunt to Mitigate Catalyst Support Carbon Corrosion in Polymer Electrolyte Membrane Fuel Cell Stacks During Start-Stop Cycling
J. Fuel Cell Sci. Technol (February,2014)
Related Chapters
Effect of Hydrogen on Corrosion of Zircaloy-4 under Irradiation
Zirconium in the Nuclear Industry: 20th International Symposium
E110opt Fuel Cladding Corrosion under PWR Conditions
Zirconium in the Nuclear Industry: 20th International Symposium
The Oxidation of Niobium in the β Phase and Its Impact on the Corrosion of Zr-Nb Alloys under Reactor Conditions
Zirconium in the Nuclear Industry: 20th International Symposium