Proton exchange membrane (PEM) fuel cell system and process of operating same

A proton exchange membrane fuel cell system includes a proton exchange membrane fuel cell; a first compressor for compressing the process air supplied to the fuel cell; a first expander coupled with compressor for driving the first compressor; and a catalytic burner as the heat source. The cathode o...

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Bibliographic Details
Main Author HORNBURG GERALD
Format Patent
LanguageEnglish
Published 20.02.2001
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:A proton exchange membrane fuel cell system includes a proton exchange membrane fuel cell; a first compressor for compressing the process air supplied to the fuel cell; a first expander coupled with compressor for driving the first compressor; and a catalytic burner as the heat source. The cathode offgas from the fuel cell is fed to the catalytic burner as an air supply and the expander is operated by the exhaust air from the catalytic burner. A portion of the gas from the burner is expanded in a second expander, which is coupled to a second compressor which further compresses the air from the first compressor.
Bibliography:Application Number: US19980208991