FUEL CELL POWER GENERATION DEVICE

PROBLEM TO BE SOLVED: To conduct smooth control so that pressure change in an exhaust gas pipe and in a reforming device is not allowed to exceed a permissible range by providing a variable type nozzle on an exhaust gas turbine, and controlling the variable type nozzle so as to take a proper nozzle...

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Bibliographische Detailangaben
1. Verfasser:	NISHIGAKI HIDEO
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To conduct smooth control so that pressure change in an exhaust gas pipe and in a reforming device is not allowed to exceed a permissible range by providing a variable type nozzle on an exhaust gas turbine, and controlling the variable type nozzle so as to take a proper nozzle opening in response to the operation load of a fuel cell power generation device. SOLUTION: A variable type nozzle 15 is provided at the exhaust gas inlet portion of an exhaust gas turbine 4. A nozzle opening control portion 18 controls so that proper opening corresponding to the operation load of a fuel cell power generation device is maintained according to a nozzle opening curve. The nozzle opening curve is obtained by selecting such nozzle opening as a pressure control valve 10 can conduct proper control in respective operation loads considering a pressure control property in the burning exhaust gas pipe 8 of the pressure control valve 10. Thereby, the proper pressure control valve 10 opening corresponding to the operation load change of the fuel cell power generation device is maintained, and smooth adjusting can be conducted without changing pressure in the exhaust pipe 8 excessively.