Method and system for cooling charge air for a fuel cell, and three-fluid charge air cooler

A method and system for cooling a pressurized charge air in the fuel cell system of a vehicle, using first and second charge air coolers. The system further includes a gas-to-gas humidifier and a fuel cell stack. According to the method and system, cathode exhaust gas passes through the gas-to-gas h...

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Bibliographische Detailangaben
Hauptverfasser:	VANDERWEES DOUG, SHORE COLIN A
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS BLASTING ELECTRICITY HEAT EXCHANGE IN GENERAL HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT HEATING LIGHTING MECHANICAL ENGINEERING PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY WEAPONS
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Beschreibung
Zusammenfassung:	A method and system for cooling a pressurized charge air in the fuel cell system of a vehicle, using first and second charge air coolers. The system further includes a gas-to-gas humidifier and a fuel cell stack. According to the method and system, cathode exhaust gas passes through the gas-to-gas humidifier and is also used as the coolant gas in the first charge-air cooler. Therefore, the fuel cell cathode exhaust is heated and reduced in water content, reducing the tendency of water in the exhaust to condense and pool underneath the vehicle. Also provided is a three-fluid heat exchanger which integrates the first and second charge air coolers.