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The impacts of image resolution on permeability simulation of gas diffusion layer using lattice Boltzmann method

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conference contribution
posted on 21.08.2014, 10:39 by Fontip Jinuntuya, Rui ChenRui Chen, Hossein Ostadi, Kyle Jiang, Yuan Gao, Xiaoxian Zhang
The effect of image resolution on gas permeability through the x-ray reconstructed carbon paper gas diffusion layer (GDL) of a polymer electrolyte fuel cell (PEFC) is examined in this paper. The 3D models of the GDL at six different resolutions are obtained by the x-ray tomography imaging technique. Each GDL image is then characterized its gas permeability through the lattice Boltzmann (LB) numerical method. The results suggest that the image resolution has a great impact on gas permeability in both principal and off-principal flow directions. The coarser resolutions can contribute to significant changes in the resulting permeability. However, it can reduce computational time to a great extent. The results also indicate that the GDL image at the resolution of 2.72 μm provides a good compromise between computational time and accuracy.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Aeronautical and Automotive Engineering

Published in

13th International Conference Advanced Batteries, Accumulators and Fuel Cells [ABAF 13th]

Pages

1 - 9 (9)

Citation

JINUNTUYA, F. ... (et al.), 2012. The impacts of image resolution on permeability simulation of gas diffusion layer using lattice Boltzmann method. In: Vondrák, J., Novák, V. and Bača, P. (eds.). Proceedings of 2012 13th International Conference on Advanced Batteries, Accumulators and Fuel Cells (ABAF 13), Brno, Czech Republic, 26-30 August.

Publisher

© Electrochemical Society

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/.

Publication date

2012

Notes

© The Electrochemical Society, Inc. 2014. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS). The archival version of this work was published in: ECS Transactions, 2014, 48 (1), pp. 93-101.

ISBN

9788021445703

ISSN

1938-6737

eISSN

1938-5862

Language

en

Location

Brno, Czech Republic