Method for operating a fuel cell battery with a control arrangement

摘要

The ducts (1,2) supply oxidant gas and reducing gas to the fuel cells (11) of the cell stack (10). A control system (14) controls the valves in the ducts to vary the oxidant gas flow and maintain constant flow of reducing gas for regulating the reaction temperature. The reacting gases are post treated so that reducing gas components are completely oxidized at the exhaust path (3). An Independent claim is included for fuel cell powered plant.