| 摘要 |
PURPOSE: A humidification device for a fuel cell system is provided, to improve the humidification efficiency and the humidification rate by using a capillary phenomenon and a thin film-type electric heater. CONSTITUTION: The humidification device comprises a porous body(110) which comprises a porous material, absorbs the water passing along one side by using a capillary phenomenon, and vaporizing the absorbed water to the reaction gas passing along the other side; and an electric heater(120) which is combined to the other side of the porous body and supplies the evaporation heat of the absorbed water to the porous body. Preferably the porous body(110) is plate-shaped or cylindrical tube-shaped one, and has at least one water channel(112) connecting the one side where water passes and the other side where the reaction gas passes. Preferably the electric heater is a thin film coated to the other side of the porous body and comprises a positive temperature coefficient material. |
