| 摘要 |
PROBLEM TO BE SOLVED: To provide an apparatus and method for supplying a humidified gas to a fuel cell which can quickly respond to a request to change the dew point or pressure of a humidified gas supplied to a fuel cell.SOLUTION: A humidified gas supply apparatus 10 includes: a first gas supply section 12 for heating a dry gas B into a heated dry gas; a second gas supply section 14 having humidification means 13 for changing a dry gas C into a vapor-saturated gas; a combination section 15 for combining the heated dry gas and the vapor-saturated gas supplied from the first and second gas supply sections 12, 14 into a humidified gas A; a storage tank 16 for improving the homogeneity of the humidified gas A; and control means 18 for determining a split ratio of the heated dry gas to the vapor-saturated gas thus combined on the basis of the dew point of the humidified gas A supplied from the storage tank 16 to a fuel cell 11, supplying the heated dry gas and the vapor-saturated gas to the combination section 15 at flow rates determined from the split ratio and the flow rate of the humidified gas A, and at the same time, controlling the pressure of the dry gas B on the basis of the flow rate of the dry gas B and the pressure of the humidified gas A. |
