燃料电池膜增湿器建模及仿真  

Modeling and Simulation Research of Membrane Humidifier Used in Fuel Cell

作　　者：常国峰[1,2] 徐迪[1,2] 常志宏[3] 许思传[1,2] CHANG Guofeng XU Di CHANG Zhihong XU Sichuan(School of Automotive, Tongji University, Shanghai 201804, China Clean Energy Automotive Engineering Center, Tongji University, Shanghai 201804, China School of Materials Science and Engineering, Tongji University, Shanghai 201804, China)

机构地区：[1]同济大学汽车学院,上海201804 [2]同济大学新能源汽车工程中心,上海201804 [3]同济大学材料科学与工程学院,上海201804

出　　处：《同济大学学报（自然科学版）》2017年第2期256-260,共5页Journal of Tongji University:Natural Science

基　　金：国家重大科学仪器开发设备专项(2012YQ15025606);中央高校基本科研业务费专项基金;上海市地面交通工具空气动力与热环境模拟重点实验室开放课题基金

摘　　要：建立了膜增湿的仿真模型,用于研究膜增湿器的传热、传质特性,分析了气体工质参数和结构参数对传热、传质过程的影响,主要结论如下:湿侧压力增加,水蒸气分子渗透量增加.干侧压力增加,水蒸气分子渗透量减少;干侧气体湿度增加,会减少水蒸气分子的渗透量.湿侧气体的湿度增加,会增加水蒸气分子的渗透量;逆流布置的传热、传质性能优于顺流布置,优先考虑逆流布置.Established simulation model of membrane humidification to research humidifier characteristics in the process of heat and mass transfer. And an analysis was made of the effect of structural parameter and gas parameter in this process. The main conclusions are as follows： Increased pressure in wet-side will lead an increase of water vapor molecules osmotic amount. The dry-side pressure increases, while the amount of water molecule penetration would reduce. And in another aspects, effects of gas humidity on water vapor molecules osmotic amount is similar to that of pressure. The heat and mass transfer performance of counter flow layout is better than that of downstream layout, so which the former is preferred on flow channel layout choice.

关 键 词：膜 燃料电池 传热 传质 

分 类 号：TM911.4[电气工程—电力电子与电力传动]