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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
Issue Date: 2014
Publisher: © The Electrochemical Society
Citation: JINUNTUYA, F. ... et al., 2014. The impacts of image resolution on permeability simulation of gas diffusion layer using lattice Boltzmann method. ECS Transactions, 48(1), pp.93-101.
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) was examined in this paper. The 3D models of the GDL at 6 different resolutions were obtained by the x-ray computed tomography imaging technique. Each GDL image was 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 calculation time to a great extent. The results also indicate that the GDL image at the resolution of 2.72 m provides a good compromise between computation 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). This paper was also presented at the 13th International Conference on Advanced Batteries, Accumulators and Fuel Cells (ABAF 2012), August 26-30, Brno, Czech Republic.
Version: Accepted for publication
DOI: 10.1149/04801.0093ecst
URI: https://dspace.lboro.ac.uk/2134/15703
Publisher Link: http://dx.doi.org/10.1149/04801.0093ecst
ISSN: 1938-5862
Appears in Collections:Published Articles (Aeronautical and Automotive Engineering)

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