| 摘要 |
<P>PROBLEM TO BE SOLVED: To carry out a preheating in a short time while preventing a crack of a power-generating cell. <P>SOLUTION: With the solid electrolyte fuel cell of a seal-less structure, generating a power-generating reaction by diffusing gas from inside toward an outer peripheral part through supply of fuel gas G1 and an oxidant gas G2 inside a stack 3 at operation, and discharging remaining gas Y1, Y2 not used for the generation reaction from the outer periphery of the stack 3 to outside, power-generating cells 7 are heated by a heater 20 arranged around the stack 3 when preheating for the start of operation, and at the same time, the gas is supplied from an exhaust pipe 22a and made to flown in a direction reverse to the direction at the time of the operation, by the above, a high-temperature gas HG heated by the heater 20 at the outer periphery of the stack 3 is guided to the inside from the outer periphery of the generating cells 7 to heat the generating cells 7. <P>COPYRIGHT: (C)2004,JPO |
