Modeling and sensitivity analysis of high temperature PEM fuel cells by using Comsol Multiphysics

Date

2016-06-22

Author

Sezgin, Berna
Caglayan, Dilara Gulcin
DEVRİM, YILSER
Steenberg, Thomas
Eroğlu, İnci

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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The objective of this study is to observe the effect of the critical design parameters, velocities of inlet gases (hydrogen and air) and the conductivity of polymer membrane, on the performance of a high temperature PEM fuel cell. A consistent and systematic mathematical model is developed in order to study the effect of these parameters. The model is applied to an isothermal, steady state, three-dimensional PEM fuel cell in order to observe concentration profiles, current density profiles and polarization curves. The model includes the transport of gases in anode and cathode gas flow channels, diffusion in the catalyst layers, the transport of water and hydronium ion in the polymer electrolyte and in the catalyst layers, and the transport of electrical current in the solid phase. The model is considered as having a single flow channel. The simulation is performed by using licensed Comsol Multiphysics 5.0, Fuel Cells &Batteries Module. The results compare well with the experimental polarization data obtained at 160 degrees C for ohmic and activation regions. The best match with the experimental data is obtained when the inlet hydrogen gas velocity is 0.133 m/s whereas inlet air velocity is 1.3 m/s for proton conductivity of 10 S/m. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

Subject Keywords

High temperature PEM fuel cell, Modeling, PBI membrane, Proton conductivity, Comsol Multiphysics

URI

https://hdl.handle.net/11511/56892

Journal

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

DOI

https://doi.org/10.1016/j.ijhydene.2016.03.142

Collections

Graduate School of Natural and Applied Sciences, Article

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Citation Formats

B. Sezgin, D. G. Caglayan, Y. DEVRİM, T. Steenberg, and İ. Eroğlu, “Modeling and sensitivity analysis of high temperature PEM fuel cells by using Comsol Multiphysics,” INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, pp. 10001–10009, 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/56892.