PEMFC尾气冷凝的自增湿运行

工程热物理学报 , 2012, 33(12): 2130-2132.

PEMFC尾气冷凝的自增湿运行

涂正凯 ^1, , 潘牧 ^2, , 丁刚强 ^3, , 刘志春 ^4, , 刘伟 ^5,

1.武汉理工大学材料复合新技术国家重点实验室,湖北武汉430070

2.武汉理工大学材料复合新技术国家重点实验室,湖北武汉430070

3.华中科技大学化学与化工学院,湖北武汉430074

4.华中科技大学能源与动力工程学院,湖北武汉430074

5.华中科技大学能源与动力工程学院,湖北武汉430074

基金项目: 中国博士后科学基金(20100471165) 国家自然科学基金(50876035,51036003)

关键词：质子交换膜燃料电池 , 电堆 , 尾气 , 冷凝 , 自增湿

Water Recovery and Self-Humidification by Condensing the Moisture in the Outlet Gas of a Proton Exchange Membrane Fuel Cell Stack

Keywords： proton exchange membrane fuel cells , stack , moisture , condensing , self-humidification

为增强质子交换膜的导电特性，在燃料电池，特别是大功率长时间运行的电堆中，需要有大量的加湿水。本文提出用冷凝器来冷却出口尾气，以收集大量的液态水并实现电池自增湿的方法。结果表明：尾气经冷凝降到一定温度分离出的液态水能有效满足反应气体的加湿要求，实现电堆的自增湿运行。

To maintain the membrane at hydrated state, plenty of water is needed for the state- of-the-art of PEMFC technology, especially in large power applications or long time operation. A condenser is introduced to separate liquid water from the outlet gas for self-humidification of the stack in this study. With the introduction of the condenser, the recovered amount of water can easily satisfy the air self-humidification by condensing the outlet gas to a proper temperature.

参考文献

[1]	M. Han;S.H. Chan;S.P. Jiang .Investigation of self-humidifying anode in polymer electrolyte fuel cells[J].International journal of hydrogen energy,2007(3):385-391.
[2]	Pan M;Tang HL;Jiang SP;Liu ZC .Self-assembled membrane-electrode-assembly of polymer electrolyte fuel cells[J].Electrochemistry communications,2005(2):119-124.
[3]	Jin Hyun Nam;Massoud Kaviany .Effective diffusivity and water-saturation distribution in single- and two-layer PEMFC diffusion medium[J].International Journal of Heat and Mass Transfer,2003(24):4595-4611.

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