| 基于鹦鹉螺仿生结构的流道对PEMFC性能提升研究 |
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| 引用本文： | 王万腾,李楠,许宏鹏,徐瑞阳,张瑾辉. 基于鹦鹉螺仿生结构的流道对PEMFC性能提升研究[J]. 太阳能学报, 2022, 43(6): 448-453. DOI: 10.19912/j.0254-0096.tynxb.2022-0340 |
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| 作者姓名： | 王万腾 李楠 许宏鹏 徐瑞阳 张瑾辉 |
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| 作者单位： | 燕山大学车辆与能源学院,秦皇岛 066004 |
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| 摘 要： | 提出一种基于鹦鹉螺旋转结构的仿生流道并建立三维单相、等温的CFD数值模型进行多物理场模拟研究,该流道进气口位于中心位置,反应气体从流场中心进入,向周围环形流道依次流动。将传统蛇形流道与鹦鹉螺仿生流道进行数值模拟分析,发现鹦鹉螺仿生流道具有反应气体分布更加均匀、除水效果更好、浓差极化损失较小、输出性能更好等优势,相比蛇形流道的峰值电流密度提升46.77%、峰值功率密度提升21.53%。
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| 关 键 词： | 质子交换膜燃料电池 流道 数值模拟 电化学 仿生结构 鹦鹉螺 |
| 收稿时间： | 2022-03-21 |
STUDY ON IMPROVING PERFORMANCE OF PEMFC BY FLOW CHANNEL BASED ON NAUTILUS BIONIC STRUCTURE |
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| Wang Wanteng,Li Nan,Xu Hongpeng,Xu Ruiyang,Zhang Jinhui. STUDY ON IMPROVING PERFORMANCE OF PEMFC BY FLOW CHANNEL BASED ON NAUTILUS BIONIC STRUCTURE[J]. Acta Energiae Solaris Sinica, 2022, 43(6): 448-453. DOI: 10.19912/j.0254-0096.tynxb.2022-0340 |
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| Authors: | Wang Wanteng Li Nan Xu Hongpeng Xu Ruiyang Zhang Jinhui |
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| Affiliation: | School of Vehicle and Energy, Yanshan University, Qinhuangdao 066004, China |
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| Abstract: | A bionic flow channel based on nautilus structure is proposed and a three-dimensional single phase, isothermal CFD numerical model is established for multi-physical field simulation in present study. The inlet of the flow channel is located in the center, the reactants enter from the center of the flow channel and flow to the surrounding annular flow channel in turn. The traditional serpentine flow channel and the nautilus bionic flow channel are simulated and analyzed. It is found that nautilus bionic flow channel has more uniform distribution of reactants, better water removal, less loss of concentration polarization and better output performance. Compared with the serpentine flow channel, the peak current density increases by 46.77% and the peak power density increases by 21.53%. |
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| Keywords: | proton exchange membrane fuel cell flow channel numerical simulation electrochemical bionic structure nautilus |
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