SOLID-OXIDE FUEL CELL SYSTEM AND METHOD FOR CONTROLLING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a compact solid-oxide fuel cell system capable of controlling steam quantity corresponding to wide operation conditions of the fuel cell system without requiring a precision device by controlling the steam generation quantity by controlling the liquid level of a steam generator to the liquid level height corresponding to the flow rate and temperature of cell exhaust gas in a solid-oxide fuel cell reforming fuel gas to steam by using high temperature exhaust gas exhausted from the solid-oxide fuel cell.

SOLUTION: A liquid level detector is installed in the steam generator generating steam, the liquid level height of the steam generator is direct detected and controlled to the liquid level height capable of obtaining the steam quantity corresponding to the flow rate and temperature of the exhaust gas of the cell depending on fuel cell operation conditions.

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