FUEL CELL SYSTEM AND TEMPERATURE RISING METHOD FOR FUEL CELL STACK

To shorten the time required for a fuel cell stack to reach temperature enabling electric power to be generated.SOLUTION: A control unit (14) of a fuel cell system comprises: a first temperature rise processing unit (68) that causes a starting-up combustor to perform combustion; a second temperature...

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1. Verfasser: YAMAMURA SHUICHI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To shorten the time required for a fuel cell stack to reach temperature enabling electric power to be generated.SOLUTION: A control unit (14) of a fuel cell system comprises: a first temperature rise processing unit (68) that causes a starting-up combustor to perform combustion; a second temperature rise processing unit that causes an exhaust gas combustor to perform combustion when stack temperature and reformer temperature become equal to or higher than a first temperature threshold; and a third temperature rise processing unit (72) that causes the starting-up combustor and the exhaust gas combustor to perform combustion after the combustion by the exhaust gas combustor has been performed.SELECTED DRAWING: Figure 2 【課題】燃料電池スタックが発電可能な温度になるまでの時間を短縮する。【解決手段】燃料電池システムの制御ユニット(14)は、起動用燃焼器による燃焼を実行させる第1昇温処理部(68)と、スタック温度および改質器温度が第1温度閾値以上になった場合に、排ガス燃焼器による燃焼を実行させる第2昇温処理部と、排ガス燃焼器による燃焼が実行された後、起動用燃焼器および排ガス燃焼器による燃焼を実行させる第3昇温処理部(72)と、を有する。【選択図】図2