| 质子交换膜燃料电池空气流场的优化设计 |
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| 引用本文： | 刘志祥,王诚,毛宗强,诸葛伟林,张扬军.质子交换膜燃料电池空气流场的优化设计[J].清华大学学报(自然科学版),2006,46(12):2081-2085. |
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| 作者姓名： | 刘志祥 王诚 毛宗强 诸葛伟林 张扬军 |
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| 作者单位： | 1. 清华大学,核能与新能源技术研究院,北京,100084
2. 清华大学,汽车工程系,汽车安全与节能国家重点实验室,北京,100084 |
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| 基金项目： | 国家重点基础研究发展计划(973计划);清华大学汽车安全与节能国家实验室开放基金 |
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| 摘 要： | 质子交换膜燃料电池空气流场的合理设计可以使电流密度、气体浓度等均匀分布,有利于提高性能。采用数值模拟与测试相结合的方法,对5种常见的空气流场进行了综合评价。结果显示,模拟结果与测试结果反映的电池性能变化趋势基本相同,性能由低到高依次为:平行流场、网格流场、平行蛇形流场、渐缩流场。串并联流场的模拟和实验结果略有差异。该方法可用于质子交换膜燃料电池空气流场的优化设计。
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| 关 键 词： | 燃料电池 质子交换膜 流场 数值模拟 |
| 文章编号： | 1000-0054(2006)12-2081-05 |
| 修稿时间： | 2005年12月30 |
Optimal design of air flow fields for proton exchange membrane fuel cells |
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| LIU Zhixiang,WANG Cheng,MAO Zongqiang,ZHUGE Weilin,ZHANG Yangjun.Optimal design of air flow fields for proton exchange membrane fuel cells[J].Journal of Tsinghua University(Science and Technology),2006,46(12):2081-2085. |
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| Authors: | LIU Zhixiang WANG Cheng MAO Zongqiang ZHUGE Weilin ZHANG Yangjun |
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| Abstract: | Proton exchange membrane fuel cells(PEMFCs) need good air flow to get uniform distribution of the current density and species concentration for improved performance.Five kinds of PEMFCs air flow patterns were evaluated in simulations and experiments.The results show that the predicted performance agreed well with the experimental results.The performance of the fuel cells increased from the parallel field design to the mesh field,parallel-serpentine field,and finally the merge field design.There was a slight difference between the simulated performance of the parallel-series field design and the experimental results. |
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| Keywords: | fuel cells proton exchange membrane flow field numerical simulations |
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