SOLID OXIDE FUEL CELL SYSTEM AND STOPPING METHOD THEREFOR

A solid oxide fuel cell system includes: a fuel cell unit including a solid oxide fuel cell and a mixer, the solid oxide fuel cell including an anode gas passage and a cathode gas passage, the mixer mixing an anode off gas discharged from the anode gas passage and a cathode off gas discharged from t...

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Bibliographische Detailangaben
Hauptverfasser: YUKIMASA, Akinori, OTSUKA, Toshiharu, OOE, Toshiharu, SAKAMOTO, Taiichiro, ONUMA, Shigenori, KITA, Hiromi, KANEKO, Yasushi, UKAI, Kunihiro, SHIRAHAMA, Hiroshi
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A solid oxide fuel cell system includes: a fuel cell unit including a solid oxide fuel cell and a mixer, the solid oxide fuel cell including an anode gas passage and a cathode gas passage, the mixer mixing an anode off gas discharged from the anode gas passage and a cathode off gas discharged from the cathode gas passage; a power-generating raw material supply device configured to supply a power-generating raw material to the fuel cell unit; a combustible gas passage, which extends from the power-generating raw material supply device to a downstream end of the anode gas passage; an oxidizing gas supply device configured to supply an oxidizing gas to the cathode gas passage; and a controller configured to, after electric power generation by the fuel cell unit is stopped, control the power-generating raw material supply device to supply the power-generating raw material in a volume more than or equal to a volume of the combustible gas passage to the combustible gas passage, and concurrently control the oxidizing gas supply device to supply the oxidizing gas to the cathode gas passage.