| 摘要 |
A high-efficiency fuel cell module according to the present invention includes a reformer that is connected to a fuel gas supply line; a fuel cell stack that is connected to each of the reformer and an air supply line; and a combustor that is connected to the fuel cell stack, and combusts combustible gas by mixing air electrode exhaust gas with fuel electrode exhaust gas of the fuel cell stack, in which part of fuel gas and air supplied during an initial stage of an operation is used to generate heat in the combustor. According to the present invention, part of the fuel gas and the air supplied during the initial stage of the operation is used in the combustor so that high-temperature exhaust gas for heating the fuel gas and the air supplied to the fuel cell stack during the initial stage of the operation is generated. Also, a recirculation blower and a heat exchanger for stable operation of the recirculation blower are disposed so as to increase a recirculation transport force for the fuel electrode exhaust gas of the fuel cell stack, and thus the efficiency of the fuel cell module can be increased. |
