| 摘要 |
PURPOSE: A membrane humidifier for a fuel cell is provided to effectively prevent the pressure dropping value within the membrane humidifier and the load of an air blower and to control the flow rate and humidification amount of the air. CONSTITUTION: In a membrane humidifier for a fuel cell, a first hollow fiber membrane bundle(110) and a second hollow fiber membrane bundle(120) are arranged at one side and the other side within a housing(101), wherein the first hollow fiber membrane bundle includes first hollow fiber membranes with relatively high humidification and the second hollow fiber membrane bundle includes second hollow fiber membranes with the humidification lower than the first hollow fiber membranes. The membrane humidifier for a fuel cell has a flow control mechanism for controlling the flow direction of the dry air flowing into the housing according to the output state of a fuel cell stack. |
