| 带增湿区的质子交换膜燃料电池 |
| |
| 引用本文： | 吕维忠,刘志祥,王诚,毛宗强,张密林.带增湿区的质子交换膜燃料电池[J].中国化学工程学报,2010,18(5):856-862. |
| |
| 作者姓名： | 吕维忠 刘志祥 王诚 毛宗强 张密林 |
| |
| 作者单位： | 1. College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China;2. Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China |
| |
| 基金项目： | Supported by the National High Technology Research and Development Program of China (2008AA05Z104) |
| |
| 摘 要： | Water management is of great importance to maintain performance and durability of proton exchange membrane fuel cells. This paper presents a novel proton exchange membrane (PEM) fuel cell with a humidification zone in the membrane electrode assembly (MEA) of each cell, in which the moisture of the cathode exhaust gas could transfer through the membrane to humidify anode or cathode dry gas. With a simple model, the relative humidity (RH) of the dry air exhaust from a membrane humidifier with 100% RH stream as a counter flow is calculated to be 60.0%, which is very close to the experimental result (62.2%). Fuel cell performances with hydrogen humidifying, air humidifying and no humidifying are compared at 50, 60 and 70˚C and the results indicate that humidifying is necessary and the novel design with humidifying zone in MEA is effective to humidify dry reactants. The hydrogen humidifying shows better performance in short term, while water recovered is limited and the stability is not as good as air hu-midifying. It is recommended that both air and hydrogen should be humidified with proper design of the humidifying zones in MEA and plates.
|
| 关 键 词： | proton exchange membrane fuel cell humidifying zone |
| 收稿时间： | 2010-6-2 |
| 修稿时间： | 2010-6-2
|
Proton Exchange Membrane Fuel Cell with Humidifying Zone |
| |
| LÜ,Weizhong,LIU Zhixiang,WANG Cheng,MAO Zongqiang,ZHANG Milin.Proton Exchange Membrane Fuel Cell with Humidifying Zone[J].Chinese Journal of Chemical Engineering,2010,18(5):856-862. |
| |
| Authors: | LÜ Weizhong LIU Zhixiang WANG Cheng MAO Zongqiang ZHANG Milin |
| |
| Affiliation: | College of Matereals Acience and Chemical Engineering,Harbin Engineering University,Harbin 150001,China;Institute of Nuclear and New Energy Tecthnology,Tslnghua University,Beijing 100084,China;College of Matereals Acience and Chemical Engineering,Harbin Engineering University,Harbin 150001,China;Institute of Nuclear and New Energy Tecthnology,Tslnghua University,Beijing 100084,China |
| |
| Abstract: | Water management is of great importance to maintain performance and durability of proton exchange membrane fuel cells. This paper presents a novel proton exchange membrane (PEM) fuel cell with a humidification zone in the membrane electrode assembly (MEA) of each cell, in which the moisture of the cathode exhaust gas could transfer through the membrane to humidify anode or cathode dry gas. With a simple model, the relative humidity (RH) of the dry air exhaust from a membrane humidifier with 100% RH stream as a counter flow is calculated to be 60.0%, which is very close to the experimental result (62.2%). Fuel cell performances with hydrogen humidifying, air humidifying and no humidifying are compared at 50, 60 and 70˚C and the results indicate that humidifying is necessary and the novel design with humidifying zone in MEA is effective to humidify dry reactants. The hydrogen humidifying shows better performance in short term, while water recovered is limited and the stability is not as good as air hu-midifying. It is recommended that both air and hydrogen should be humidified with proper design of the humidifying zones in MEA and plates. |
| |
| Keywords: | proton exchange membrane fuel cell humidifying zone |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《中国化学工程学报》浏览原始摘要信息 |
|
点击此处可从《中国化学工程学报》下载全文 |
|
