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Thermal management strategies for a 1 kWe stack of a high temperature proton exchange membrane fuel cell
Published in
2012
Volume: 48
   
Pages: 465 - 475
Abstract
A proper thermal management strategy is needed to maintain uniform temperature distribution and derive optimal performance in high temperature proton exchange membrane fuel cells (HT-PEMFC). In HT-PEMFCs, more than half of the chemical energy is converted into thermal energy during the electrochemical generation of electrical power. We investigate the viability of three heat removal strategies: (a) using cooling plates through which cathode air is passed in excess of stoichiometric requirement for the purpose of heat removal, (b) using forced convection partly in conjunction with cooling plates, and (c) using forced convection alone for heat removal. Calculations, partly done using computational fluid dynamics simulations, for a 1 kWe HT-PEMFC stack, which is suitable for scooter type of transport applications, show that a combination of excess stoichiometric factor and forced draft appears to provide the optimal strategy for thermal management of high temperature PEM fuel cells. With proper cooling strategy, the temperature variations within the cell may be reduced to about 20 K over most of the cell and to about 50 K in isolated spots. © 2012 Elsevier Ltd. All rights reserved.
About the journal
JournalApplied Thermal Engineering
ISSN13594311
Open AccessNo
Concepts (24)
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    CHEMICAL ENERGY
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    Computational fluid dynamics simulations
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    COOLING PLATES
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    COOLING STRATEGY
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    Electrical power
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    ELECTROCHEMICAL GENERATION
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    Heat removal
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    HIGH TEMPERATURE PEM
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    HIGH TEMPERATURE PROTON EXCHANGE MEMBRANE
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    Optimal performance
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    Optimal strategies
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    STOICHIOMETRIC FACTORS
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    Temperature mapping
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    Temperature variation
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    THERMAL MANAGEMENT STRATEGY
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    TRANSPORT APPLICATIONS
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    Computational fluid dynamics
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    Cooling
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    Forced convection
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    High temperature applications
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    High temperature operations
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    Temperature control
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    Temperature distribution
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    Proton exchange membrane fuel cells (pemfc)