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Title: Computational study of forced air-convection in open-cathode polymer electrolyte fuel cell stacks
Authors: Sasmito, A.P. 
Lum, K.W.
Birgersson, E. 
Mujumdar, A.S. 
Keywords: Characteristic curve
Forced air-convection
Mathematical model
Open-cathode manifold
Polymer electrolyte fuel cell
Issue Date: 1-Sep-2010
Citation: Sasmito, A.P., Lum, K.W., Birgersson, E., Mujumdar, A.S. (2010-09-01). Computational study of forced air-convection in open-cathode polymer electrolyte fuel cell stacks. Journal of Power Sources 195 (17) : 5550-5563. ScholarBank@NUS Repository.
Abstract: A mathematical model for a polymer electrolyte fuel cell (PEFC) stack with an open-cathode manifold, where a fan provides the oxidant as well as cooling, is derived and studied. In short, the model considers two-phase flow and conservation of mass, momentum, species and energy in the ambient and PEFC stack, as well as conservation of charge and a phenomenological membrane and agglomerate model for the PEFC stack. The fan is resolved as an interfacial condition with a polynomial expression for the static pressure increase over the fan as a function of the fan velocity. The results suggest that there is strong correlation between fan power rating, the height of cathode flow-field and stack performance. Further, the placement of the fan - either in blowing or suction mode - does not give rise to a discernable difference in stack performance for the flow-field considered (metal mesh). Finally, it is noted that the model can be extended to incorporate other types of flow-fields and, most importantly, be employed for design and optimization of forced air-convection open-cathode PEFC stacks and adjacent fans. © 2010 Elsevier B.V. All rights reserved.
Source Title: Journal of Power Sources
ISSN: 03787753
DOI: 10.1016/j.jpowsour.2010.02.083
Appears in Collections:Staff Publications

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