| 摘要 |
A power supply system using a fuel cell comprises a chemical reaction section (100) including, a evaporation section (103, 112, 114) that receives a power generation fuel and water supplied to it, heating at least the water supplied to it to evaporate it and a reaction section (105, 107) that generates a power generation gas on the basis of the steam generated by the evaporation section and the power generation fuel, a fuel supply section (P1, V1) that supplies the power generation fuel to the chemical reaction section, a water supply section (P2, V2) that supplies water to the chemical reaction section and a control section (130) that controls the operation of the system so as to stop supply of the power generation fuel from the fuel supply section to the chemical reaction section when the evaporation section is not in a condition suitable for evaporating operation. The power supply system suppresses any rise of the carbon monoxide concentration at the time of starting and stopping the system and prevents the power generation performance of the system from degrading.
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