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Title: Numerical evaluation of various thermal management strategies for polymer electrolyte fuel cell stacks
Authors: Sasmito, A.P. 
Birgersson, E. 
Mujumdar, A.S. 
Keywords: Cooling
Polymer electrolyte fuel cell
Thermal management
Issue Date: Oct-2011
Citation: Sasmito, A.P., Birgersson, E., Mujumdar, A.S. (2011-10). Numerical evaluation of various thermal management strategies for polymer electrolyte fuel cell stacks. International Journal of Hydrogen Energy 36 (20) : 12991-13007. ScholarBank@NUS Repository.
Abstract: Thermal management is one of the key factors required to ensure good performance polymer electrolyte fuel cell (PEFC) stacks. The choice of the thermal management strategy depends on the specific application, size, weight, design, complexity, and cost. In this work, we investigate various alternative thermal management strategies for PEFC stacks, e.g., forced convection in specially design cooling plate/channel with either (i) liquid or (ii) air as the coolant; (iii) edge-air cooling with fins and; combine oxidant and coolant flow (open-cathode) with (iv) forced and (v) natural convection air cooling. A three-dimensional two-phase model, comprising of the equations of conservation of mass, momentum, species, energy and charge, is employed to quantify the performance of various cooling strategies. The results demonstrate that thermal management is essential to ensure good stack performance. Liquid cooling, as expected, performs the best compared to air cooling, whereas natural convection cooling is just marginally able to maintain a stack with large number of cells from steep drop in performance. Finally, results presented in this paper can provide useful design guidelines for selection of a suitable thermal management strategy for a PEFC stack and its near-to- or optimum cooling condition. © 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
Source Title: International Journal of Hydrogen Energy
ISSN: 03603199
Appears in Collections:Staff Publications

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