Publication Detail
Optimizing the Overall Conversion Efficiency of a Direct-Methanol Fuel Cell
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UCD-ITS-RP-00-12 Presentation Series Download PDF |
Suggested Citation:
Moore, Robert M., Shimshon Gottesfeld, P. Zelenay (2000) Optimizing the Overall Conversion Efficiency of a Direct-Methanol Fuel Cell. Institute of Transportation Studies, University of California, Davis, Presentation Series UCD-ITS-RP-00-12
Electrochemical Society Proceedings
It is important to be able to maximize the conversion efficiency of a PEM direct-methanol fuel cell (DMFC) over the broadest possible range of cell power density. The research presented here provides conceptual framework for a control strategy that provides such an optimization. This framework leads into a system level optimization of efficiency vs. power, and an operational strategy for controlling a direct-methanol fuel cell for maximum efficiency from minimum to maximum power density. Contrary to the conventional wisdom regarding DMFCs, the research reported here shows that, if such operational strategy could be implemented, DMFCs can be considered for highly dynamic applications – including automotive use without resorting to "hybrid" power systems.
It is important to be able to maximize the conversion efficiency of a PEM direct-methanol fuel cell (DMFC) over the broadest possible range of cell power density. The research presented here provides conceptual framework for a control strategy that provides such an optimization. This framework leads into a system level optimization of efficiency vs. power, and an operational strategy for controlling a direct-methanol fuel cell for maximum efficiency from minimum to maximum power density. Contrary to the conventional wisdom regarding DMFCs, the research reported here shows that, if such operational strategy could be implemented, DMFCs can be considered for highly dynamic applications – including automotive use without resorting to "hybrid" power systems.