| PEMFC流道中重力辅助排水的机理研究 |
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| 引用本文： | 涂正凯,裴后昌,余意,罗志平,潘牧.PEMFC流道中重力辅助排水的机理研究[J].电池工业,2011,16(2):93-96. |
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| 作者姓名： | 涂正凯 裴后昌 余意 罗志平 潘牧 |
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| 作者单位： | 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 |
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| 基金项目： | 国家"863"重大项目，中国博士后科学基金，国家自然科学基金 |
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| 摘 要： | 以质子交换膜燃料电池流道中的液滴为研究对象,考虑了吹力、重力以及粘滞力的影响,从力平衡的角度出发建立了液滴从扩散层表面脱离的临界风速及半径的关系,得出了不同的重力倾角和工作压力对临界风速的影响.研究表明:在水平流道中,临界风速受温度的影响不大,而随工作压力的增大而减小;增大重力倾角有利于提高电堆的排水能力;小液滴脱离的...
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| 关 键 词： | PEMFC 流道 重力 液滴 临界风速 |
Investigation on the effect of gravity on the droplet removal in the flow channel of PEMFC |
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| TU Zheng-kai,PEI Hou-chang,YU Yi,LUO Zhi-ping,PAN Mu.Investigation on the effect of gravity on the droplet removal in the flow channel of PEMFC[J].Chinese Battery Industry,2011,16(2):93-96. |
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| Authors: | TU Zheng-kai PEI Hou-chang YU Yi LUO Zhi-ping PAN Mu |
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| Affiliation: | TU Zheng-kai,PEI Hou-chang,YU Yi,LUO Zhi-ping,PAN Mu(State Key Laboratory of Advanced Technology for Materials Synthesis and Progressing,Wuhan University of Technology,Wuhan 430070,China) |
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| Abstract: | Dealing with a droplet on the flow channel of PEMFC,a mathematical model based on the force balance of the flow force,gravity and hysteresis tension was derived to address the expressions of the critical airflow velocity and the droplet radii.The results showed that in the horizontal flow channel,the critical airflow velocity was hardly affected by the working temperature but decreased with the increasing of operation pressure.The droplet removal capability could be enhanced by increasing the tilt angle of ... |
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| Keywords: | PEMFC |
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