| 摘要 |
PROBLEM TO BE SOLVED: To enhance heat resistance of an evaporator and to shorten a starting time, in a reforming device of a fuel cell. SOLUTION: This reforming device is equipped with an evaporator 15 to generate raw fuel vapor by vaporizing raw fuel comprising water and methanol, a superheater 14 to overheat the raw fuel vapor on the upstream side of the evaporator, and an auxiliary evaporator 13 to evaporate the raw fuel at the inlet part of the superheater. Since the auxiliary evaporator is provided at the inlet part of the superheater, an internal temperature difference can be reduced by expediting a temperature drop of combustion gas, and heat resistance can be enhanced, by heat exchange with liquid fuel to be supplied to a sudden thermal load during starting. In addition, since heat can be exchanged at a position where the temperature of the combustion gas is the highest, evaporation of the fuel cell can be expedited, supply of the fuel gas can be speedily started, and accordingly the starting time of the reformer is shortened. |
