HEAT AND AIR CONTROL METHOD OF FUEL-CELL SYSTEM AT HIGH POWER LOAD

摘要

A heat and air control method of a fuel-cell system is provided to secure air flow through relative low temperature drive in a high power section, to prevent the degradation of stack and to reduce consumption output of an air blower. A heat and air control method of a fuel-cell system comprises an air flux sensor measuring the air flow flown into the air blower; a coolant inlet temperature sensor measuring the temperature of cooling water flown into the fuel cell stack; a coolant outlet temperature sensor measuring the temperature of cooling water flown from the fuel cell stack; a coolant pump for controlling the temperature of cooling water inlet and outlet; a radiator fan for controlling the temperature of the cooling water flown into the cooling water inlet of the fuel cell stack; and a power control unit controlling the output of the whole of the fuel system.