System and Method For Purging Condensate From An Electrochemical Cell Stack Prior To Operation

System and Method For Purging Condensate From An Electrochemical Cell Stack Prior To Operation

A system and technique for purging condensate from an electrochemical cell stack prior to operating the stack in one of a power producing mode of operation and an electrochemical pumping mode of operation is provided. The system and technique include storing hydrogen in the anode and cathode chamber...

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Bibliographische Detailangaben
Hauptverfasser: DOHERTY THOMAS V, OTAKA AKIFUMI, TAKEUCHI JUN, SCHRIEBER JEFFREY W, CHUAH, P.E. CHRISTOPHER J
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
CHEMISTRY
COMPOUNDS THEREOF
ELECTRICITY
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:A system and technique for purging condensate from an electrochemical cell stack prior to operating the stack in one of a power producing mode of operation and an electrochemical pumping mode of operation is provided. The system and technique include storing hydrogen in the anode and cathode chambers of the stack to place the stack in a shutdown state, purging the anode and cathode chambers of condensate prior to starting operation of the stack, and preventing a fuel starvation condition in the stack while purging by sequencing communication of a fuel flow and an oxidant flow to the anode chamber with an oxidant flow to the cathode chamber while purging the condensate.