摘要
由于质子交换膜燃料电池(PEMFC)性能受反应气体的湿度影响很大,进气湿度必须加以控制,其大致范围应高于80%,低于100%。电解质的质子传导能力与水含量成正比,但水分含量又不能过高,否则会引起电解质淹没。当PEMFC在不加湿的情况下,工作温度升高60℃时,反应气体会非常干燥,这对质子交换膜是灾难性的,所以对反应气体加湿必不可少。通过实验证明了某型加湿器能够满足车用燃料电池发动机的需要。
The performance of a proton exchange membrane fuel cell （PEMFC）is dependent on the humidity of the air, so the humidity of the air must be controlled at 80%-100%. The proton transmit capability is in direct ratio to the content of the water. But too much water will cause electrolyte flooding. Under the condition without humidifier, the temperature of air will increase to 60℃, and the air would be extremely dry, which strongly destroy the PEMFC. So it is necessary to humidify the air. The result of the experiment indicates that the performance of the humidifier can meet the requirement of PEMFC engine.
出处
《上海汽车》
2008年第12期6-9,共4页
Shanghai Auto
