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化工学报  2015 

阳极进气湿度对质子交换膜水含量及电流密度分布影响

DOI: 10.11949/j.issn.0438-1157.20151254, PP. 342-348

Keywords: 质子交换膜,燃料电池,增湿,电流密度分布,数值模拟

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Abstract:

针对质子交换膜中水分布不均匀造成燃料电池性能降低的问题,将膜和催化层中水传递方程进行耦合实现水在膜和催化层之间连续传递,建立了质子交换膜燃料电池三维稳态模型。利用有限元分析软件COMSOL进行模拟计算,研究了阳极气体在不同湿度下膜电流密度分布并组装单电池进行了验证,分析实验模拟结果表明:模拟极化曲线与实验极化曲线吻合良好。湿度对电流密度分布影响很大,低湿度条件下,脊背下方电流密度大于气体流道下方;高湿度条件下,电流密度分布比较均匀;采用Nafion117较厚膜时,高电流密度下,即使阳极加湿,阳极侧也有脱水的可能。

References

[1]  Springer T E,Zawodzinski T A,Gottesfeld S.Polymer electrolyte fuel cell model[J].Journal of the Electrochemical Society,1991,138(8):2334-2342.
[2]  Falc?o D S,Oliveira V B,Rangel C M,Pintoa A M F R. Water transport through a PEM fuel cell:a one dimensional model with heat transfer effects[J].Chemical Engineering Science,2009,64(9):2216-2225.
[3]  Karpenko-jereb L,Innerwinkler P,Kelterer A M,Sterning C,Fink C,Prenninger P,Tatschl R.A novel membrane transport model for polymer electrolyte fuel cell simulations[J].International Journal of Hydrogen Energy,2014,39(13):7077-7088.
[4]  Singh D,Lu D M,Djilali N.A two-dimensional analysis of mass transport in porton exchange membrane fuel cells[J].International Journal of Engineering Science,1999,37(4):431-452.
[5]  Sahraoui Bichioui.Three-dimensional modeling of water transport in PEMFC[J].International Journal of Hydrogen Energy,2013,38(20):8524-8531.
[6]  Wu Xi(吴曦),Zhang Dongyun(张冬云),Jiang Qizhong(蒋淇忠),Ma Zifeng(马紫峰).Application of spherical agglomerate model in PEMFC process simulation[J].CIESC Journal(化工学报),2010,61(10):2694-2702.
[7]  Shen Jun(沈俊),Zhou Bing(周兵),Qiu Zizhao(邱子朝),Tu Zhengkai(涂正凯),Liu Zhichun(刘志春),Liu Wei(刘伟).Mass transfer enhancement of porton exchange membrane fuel cell[J].CIESC Journal(化工学报),2014,65(S1):421-425.
[8]  Matamoros L,Brggemann D.Concentration and ohmic losses in free-breathing PEMFC[J].Journal of Power Sources,2007,173(1):367-374.
[9]  Melik Sahraoui,Youssef Bichioui,Kamel Halouani.Three-dimensional modeling of water transport in PEMFC[J].International Journal of Hydrogen Energy,2012,38(20):8524-8531.
[10]  Al-Baghdadi M A R S,Al-Janabi H A K S.Parametric and optimization study of a PEM fuel cell performance using three-dimensional computational fluid dynamics model.[J].Renewable Energy,2007,32(7):1077-1101.
[11]  Meng Hua.A three-dimensional PEM fuel cell model with consistent treatment of water transport in MEA[J].Journal of Power Sources,2006,162:426-435.
[12]  Adam Z Weber,Tohn Newman.Transport in polymer-electrolyte membranes(I):Physical model[J].Journal of the Electrochemical Society,2003,150(7):1008-1015.
[13]  Motupally S,Becker A J,Weidner J W.Diffusion of water in Nafion 115 membranes[J].Electrochem.Soc.,2003,147(9):3171.
[14]  Zawodzinki T A,Springer T E,Ubribe F,Gottesfeld S.Characterization of polymer electrolytes for fuel cell applications[J].Solid State Ionics,1993,60:199-211.
[15]  Zhuge Weilin(诸葛伟林),Zhang Yangjun(张杨军),Ming Pingwen(明平文),Lao Xingsheng(劳星胜),Chen Xiao(陈潇).Numerical simulation of three dimensional gas/liquid two phase flow in a proton exchange membrane fuel cell[J].J.Tsinghua Univ.:Sci.&Tech.(清华大学学报:自然科学版),2006,46(2):252-256.

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