摘要
为研究流道尺寸对质子交换膜燃料电池性能的影响,通过多物理场直接耦合分析软件COMSOL,建立了质子交换膜燃料电池三维模型.分析了流道宽度不变,流道宽度与脊宽度之比分别为11、12、13时对电池性能的影响,验证了建立模型的有效性与可靠性;进一步研究当脊宽度不变,流道宽度与脊宽度之比分别为11、21、31,综合考虑了电流密度、阳极氢气浓度及阴极氧气浓度等因素的影响分析.研究发现:流道宽度和脊宽度之比为11是燃料电池较理想的尺寸比,并且脊宽度变化比流道宽度变化对电池性能的影响大.
In order to study the influence of channel size on the performance of proton exchange membrane fuel cell(FEMFC),A three-dimensional model of proton exchange membrane fuel cell was established by COMSOL.The influence on fuel cell performance was analyzed when the ratio of channel width to ridge width is 11,12 and 13,respectively,and the validity and reliability of the model was verified.Further study shows that when the ridge width remains unchanged,the ratio of the channel width to the ridge width is 11,21,and 31,respectively.The influences of current density,hydrogen concentration at anode and oxygen concentration at cathode were analyzed.It is found that which is the best size ratio of fuel cell of channel width to ridge width is 11,and the ridge width has more influence on the fuel cell performance than the channel width.
作者
孟庆然
田爱华
陈海伦
刘金东
MENG Qingran;TIAN Aihua;CHEN Hailun;LIU Jindong(School of Mechanical and Electrical Engineering,Jilin Institute of Chemical Technology,Jilin City 132022,China)
出处
《吉林化工学院学报》
CAS
2020年第3期48-52,共5页
Journal of Jilin Institute of Chemical Technology
关键词
直流道
脊
质子交换膜燃料电池
电流密度
氧气浓度
channel
ridge
proton exchange membrane fuel cell
current density
oxygen concentrations
作者简介
孟庆然(1992-),女,辽宁朝阳人,吉林化工学院2017级硕士研究生,主要从事质子交换膜燃料电池方面的研究;通信作者:田爱华(1971-),女,吉林汪清人,吉林化工学院教授,博士,主要从事直接甲醇燃料电池方面的研究。
