System and method for management of gas and water in fuel cell system

A fuel cell system has : a fuel cell (12) having a first reactant inlet, a first reactant outlet, a second reactant inlet, a second reactant outlet, and optionally a coolant inlet and coolant outlet. A first reactant supply subsystem (31) supplies a first reactant incoming stream (30) to the first r...

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Bibliographic Details
Main Author CARGNELLI JOSEPH,SIMPSON TODD A.,DEL CORE ROBERT C.,BURANY STEPHEN,YE JIANMING,BAZZARELLA RICARDO
Format Patent
LanguageEnglish
Published 11.07.2007
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 fuel cell system has : a fuel cell (12) having a first reactant inlet, a first reactant outlet, a second reactant inlet, a second reactant outlet, and optionally a coolant inlet and coolant outlet. A first reactant supply subsystem (31) supplies a first reactant incoming stream (30) to the first reactant inlet of the fuel cell. A second reactant supply subsystem (21) supplies a second reactant incoming stream (20) to the second reactant inlet of the fuel cell. A first reactant recirculation subsystem recirculates at least a portion of the first reactant exhaust stream (40) from the first reactant outlet to a regenerative dryer subsystem (80) in which one portion of the heat and moisture in first reactant exhaust stream is transferred to one of the first reactant incoming stream (30) in the first reactant supply subsystem and the second reactant incoming stream (20) in the second reactant supply subsystem. Another portion of the heat and moisture is transferred to the other stream. A method of controlling reactant and water in a fuel cell system is also disclosed.
Bibliography:Application Number: CN20038022684