Numerical Investigation of Anisotropic Electrical Conductivity Effects in Proton Exchange Membrane Fuel Cell

Yıl 2017, Sayı: Özel Sayı - Special Issue, 2 - 6, 31.12.2017

Gülşah Elden Mert Taş

Öz

The purpose of this study is to investigate
numerically the effects of anisotropic electrical conductivity of gas diffusion
layers on charge transport in Proton Exchange Membrane (PEM) fuel cell. To
achieve this purpose, a single phase, three dimensional and anisotropic model
is developed by using COMSOL Multiphysics 4.2a software. The numerical model is
validated in experimental data which is obtained at the cell temperature of 343
K for the PEM fuel cell having 5x5 cm² active surface area.  To find out numerically the effects of
anisotropic electrical conductivity of gas diffusion layers on charge
transport, two cases are examined. In the first case, the in-plane electrical
conductivity of its is increased gradually as the through plane electrical
conductivity is kept constant. In the second case, while the value of in-plane
electrical conductivity is a constant, the through plane electrical
conductivity is increased. When the both electrical conductivities are compared
for all cases, the through plane conductivity has a greater effect on charge
transport in PEM fuel cell than the in-plane plane electrical conductivity.

Anahtar Kelimeler

PEM fuel cell, anisotropic electrical conductivity, numerical model

Destekleyen Kurum

Scientific Research Projects Unit of Erciyes University

Proje Numarası

FYL-2017-7235

Teşekkür

The authors would like to thank the Scientific Research Projects Unit of Erciyes University for funding and supporting the project under the contract no: FYL-2017-7235.

Kaynakça

• Bernardi D.M., Verbrugge M.W. 1990. Mathematical model of a gas diffusion electrode bonded to a polymer electrolyte. AIChE Journal 37(8), 1151–1163.
• Berning T., Djilali N. 2003. A 3D, multiphase, multicomponent model of the cathode and anode of a PEM Fuel Cell. Journal of The Electrochemical Society 150(12), A1589.
• Um S., Wang C.Y. 2004. Three-dimensional analysis of transport and electrochemical reactions in polymer electrolyte fuel cells. Journal of Power Sources 125(1), 40–51.
• Dutta S., Shimpalee S., Van Zee J.W. 2000. Three-dimensional numerical simulation of straight channel PEM fuel cells. Journal of Applied Electrochemistry 30, 135-146.
• Berning T., Lu D. M., Djilali, N. 2002. Three-dimensional computational analysis of transport phenomena in a PEM fuel cell. Journal of Power Sources 106(1), 284–294.
• Ramesh P., Duttagupta S.P, 2013. Effect of channel dimensions on micro PEM fuel cell performance using 3D modeling. International Journal of Renewable Energy Research 3(2). 353-358.
• Gurau V., Liu H., Kakaç S. 1998. Two-Dimensional Model for Proton Exchange Membrane Fuel Cells. American Institute of Chemical Engineers Journal 44(11), 2410–22.
• Um S., Wang C. Y., Chen C.S. 2000. Computational fluid dynamics modeling of proton exchange membrane fuel cells. Journal of the Electrochemical Society 147(12), 4485–4493.
• u H., Wang C.Y. 2004. Experimental Validation of a PEM fuel cell model by current distribution data. Journal of the Electrochemical Society 151(11), A1954.
• Iranzo A., Munoz M., Rosa F., Pino J. 2010. Numerical model for the performance prediction of a PEM fuel cell model results and experimental validation. International Journal of Hydrogen Energy 35(20), 11533–11
• Haghayegh M., Eikani M. H., Rowshanzamir S. 2017. Modeling and simulation of a proton exchange membrane fuel cell using computational fluid dynamics. International Journal of Hydrogen Energy 42(34), 21944–21954.
• Bapat C. J., Thynell S. T. 2008. Effect of anisotropic electrical resistivity of gas diffusion layers (GDLs) on current density and temperature distribution in a Polymer Electrolyte Membrane (PEM) fuel cell. Journal of Power Sources 185(1), 428–432.
• Zhou T., Liu, H. 2006. Effects of the electrical resistances of the GDL in a PEM fuel cell. Journal of Power Sources 161(1), 444–453.
• Ismail M.S., Hughes K.J., Ingham D.B., Ma L., Pourkashanian, M. 2012. Effects of anisotropic permeability and electrical conductivity of gas diffusion layers on the performance of proton exchange membrane fuel cells. Applied Energy 95, 50–63.