| 摘要 |
Disclosed is a humidifier for a fuel cell. The disclosed humidifier for a fuel cell enables membrane humidification between discharge air discharged from a cathode of a fuel cell stack and high-temperature dry supply air supplied via a compressor, and supplies the humidified air to the cathode of the fuel cell stack. The humidifier for a fuel cell comprises: i) a membrane module in which a plurality of bundles of hollow fiber membranes are densely disposed inside a housing; and ii) an air cooler which is installed on an air inlet side of the membrane module, to which the supply air flows, inside the housing, and cools the supply air. The air cooler comprises a plurality of cooling plates configured such that coolant flow passages through which coolant flows are formed therein, and heat dissipation fins disposed between the cooling plates and configured such that air flow passages through which supply air flows are formed therein. The cooling plates have air flow passages which have sectional areas which become more different from each other in a direction from a central part of a flow of the supply air to a peripheral part of the flow of the supply air. |
