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Title: The impacts of image resolution on permeability simulation of gas diffusion layer using lattice Boltzmann method
Authors: Jinuntuya, Fontip
Chen, Rui
Ostadi, Hossein
Jiang, Kyle
Gao, Yuan
Zhang, Xiaoxian
Keywords: Lattice Boltzmann method
X-ray tomography
Gas diffusion layer
Issue Date: 2012
Publisher: © Electrochemical Society
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.
Abstract: 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.
Description: © 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.
Version: Accepted for publication
DOI: 10.1149/04801.0093ecst
URI: https://dspace.lboro.ac.uk/2134/15638
Publisher Link: http://dx.doi.org/10.1149/04801.0093ecst
ISBN: 9788021445703
ISSN: 1938-6737
Appears in Collections:Conference Papers and Contributions (Aeronautical and Automotive Engineering)

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