| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a humidifier for a fuel cell having high humidifying performance per volume and high durability. <P>SOLUTION: The humidifier 1 conducts moisture exchange between first gas flowing through the inside of a hollow fiber membrane 9 and second gas flowing through the outside of the hollow fiber membrane 9. On the inlet side and the outlet side of the second gas, a hollow fiber membrane 9A having a relatively large pore diameter and low heat resistance is arranged on the side where the second gas is relatively wet and low in temperature, and a hollow fiber membrane 9B having a relatively small pore diameter and high heat resistance is arranged on the side where the second gas is relatively dry and high in temperature. <P>COPYRIGHT: (C)2008,JPO&INPIT |
