FUEL CELL SYSTEM
PROBLEM TO BE SOLVED: To securely prevent flatting without delaying an output derivation time in starting a fuel cell system. SOLUTION: When hydrogen gas is supplied to an anode 11 while discharging impurity gas in a hydrogen gas circulation supply system 20 in starting the fuel cell system, a circu...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | PROBLEM TO BE SOLVED: To securely prevent flatting without delaying an output derivation time in starting a fuel cell system. SOLUTION: When hydrogen gas is supplied to an anode 11 while discharging impurity gas in a hydrogen gas circulation supply system 20 in starting the fuel cell system, a circulation flow rate of the hydrogen gas circulated in the hydrogen gas circulation supply system 20 is set to a predetermined circulation flow rate which is increased than a circulation flow rate required in starting the fuel cell system for a predetermined duration time. A pressure in the hydrogen gas circulation supply system 20 is set to a predetermined pressure which is increased than a pressure required in starting the fuel cell system. Thereby, liquid water condensed in the hydrogen gas circulation supply system 20 is separated into gas and liquid and is recovered, and control to perform liquid water discharge operation to discharge to an external of the hydrogen gas circulation supply system 20 is performed. COPYRIGHT: (C)2008,JPO&INPIT |
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