新型固体氧化物燃料电池连接件的结构设计与数值仿真
PDF下载 (289)支训廷,王家堂,苗 鹤,尹明明,肖柳胜,户睿淦,袁金良.新型固体氧化物燃料电池连接件的结构设计与数值仿真[J].宁波大学学报(理工版),2022,35(5):115-120.DOI:
ZHI Xunting,WANG Jiatang,MIAO He,YIN Mingming,XIAO Liusheng,HU Ruigan,YUAN Jinliang.Structure design and numerical simulation of a new type of interconnector for solid oxide fuel cell[J].Journal of Ningbo University(Natural Science & Engineering Edition),2022,35(5):115-120.DOI:
| Title: | Structure design and numerical simulation of a new type of interconnector for solid oxide fuel cell |
| 作者: | 支训廷, 王家堂, 苗 鹤, 尹明明, 肖柳胜, 户睿淦, 袁金良 |
| Author(s): | ZHI Xunting, WANG Jiatang, MIAO He, YIN Mingming, XIAO Liusheng, HU Ruigan, YUAN Jinliang |
| 关键词: | 固体氧化物燃料电池; 连接件; A型结构; 仿真; 流道 |
| Keywords: | solid oxide fuel cell; interconnector; A-type structure; simulation; flow channel |
| 分类号: | TQ515.8 |
| 文献标识码: | A |
| 摘要: | 离散型连接件构成的固体氧化物燃料电池结构中存在反应气体容易产生涡流和较小压降等问题, 影响电池的输出功率. 本文基于COMSOL Multiphysics仿真平台, 建立离散型连接件的固体氧化物燃料电池的三维模型进行数值仿真模拟. 考虑其气体流量、组成、质量以及电化学反应过程, 研究离散型连接件电池阳极和阴极内反应气体的流速、流道阻力和浓度对电池工作性能的影响, 并与相同工况下的平直流道型连接件的固体氧化物燃料电池三维模型进行比较. 结果表明: 离散型连接件的固体氧化物燃料电池流道内的气体流速较大, 气体浓度下降较慢, 有较强的流道传质能力, 与平直流道型连接件的固体氧化物燃料电池相比, 离散型连接件电池的最大输出功率提升了61.27％. |
| Abstract: | The solid oxide fuel cell structure composed of discrete interconnectors has raised some technical issues such as the reaction gas easily generating eddy currents and small pressure drop, which affects the output power of the cell. In this paper, on the COMSOL Multi-physics simulation platform, a three-dimensional model of solid oxide fuel cell with discrete inetrconnector is established along with the numerical simulation. Considering the gas flow, composition, quality and the process of electrochemical reaction, the influence of the flow rate, flow channel resistance and concentration of the reaction gas in the anode and cathode of the discrete interconnector on the SOFC performance is studied. Compared with the solid oxide fuel cell consisting of the parallel channel interconnector under the same working conditions, as the research results show, the solid oxide fuel cell made up of the discrete interconnector achieves a larger gas flow rate, a slower decrease in gas concentration, and a stronger flow channel mass transfer capability. The maximum output power of the solid oxide fuel cell consisting of the discrete interconnector has been increased by 61.27％. |
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| 备注/Memo: | 收稿日期: 2021－11－24. 宁波大学学报（理工版）网址: http://journallg.nbu.edu.cn/ 基金项目: 科技部国家重点研发计划（2018YFB1502204）; 宁波市“科技创新2025”重大专项（2019B10043）. 第一作者: 支训廷（1982－）, 男, 安徽亳州人, 在读硕士研究生, 主要研究方向: 新能源器件结构设计与研发. E-mail: zhixunting@163.com *通信作者: 苗鹤（1979－）, 男, 吉林舒兰人, 教授, 主要研究方向: 新能源材料与器件. E-mail: miaohe@nbu.edu.cn 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
