Patent ID: 8142946
Filing Date: 2012-03-27
Classification: H01M,Y02E

Abstract:
1. A fuel cell system which circulates a refrigerant flowing into a fuel cell to cool the fuel cell and which is capable of heating air-conditioning gas in an air conditioning line by exhaust heat of the refrigerant that has passed through the fuel cell, the fuel cell system comprising: a cooling line which has a first heat exchanger for cooling the refrigerant and circulates the refrigerant to the fuel cell; an exhaust heat utilization line which has a second heat exchanger for heat exchanging the refrigerant with the air-conditioning gas in the air-conditioning line and which circulates the refrigerant to the fuel cell; and a flow controller programmed to control the flow of the refrigerant in the cooling line and the exhaust heat utilization line, wherein the flow controller is further programmed to start the flow of the refrigerant in the cooling line, before starting the flow of the refrigerant in the exhaust heat utilization line, thereby preventing refrigerant from entering the fuel cell when the refrigerant is at the temperature of the predetermined difference from that of the fuel cell.