TY - JOUR
T1 - Numerical analysis of two-phase condition in GDL with pore network model
AU - Inoue, G.
AU - Matsukuma, Yosuke
AU - Minemoto, Masaki
N1 - Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2010/3
Y1 - 2010/3
N2 - In order to improve the output performance of PEFC, it is important to investigate the two-phase condition in gas diffusion layer (GDL). In this study, the simulated GDL structures, which were carbon paper and carbon cloth, were developed by numerical analysis including the random orientation of carbon fibers. As structural properties, pore size distribution was calculated, and these values almost agreed with actual measurement values. Furthermore, our past two-phase network model was improved, and the model based on an actual heterogeneous structure was developed by a direct 3 D networking porous structure. And the influence of GDL structure on the two-phase condition with accumulated water was evaluated, and effective diffusion coefficient of oxygen in GDL with liquid water was calculated. It became possible to compare the performance of mass transfer in various wet GDL.
AB - In order to improve the output performance of PEFC, it is important to investigate the two-phase condition in gas diffusion layer (GDL). In this study, the simulated GDL structures, which were carbon paper and carbon cloth, were developed by numerical analysis including the random orientation of carbon fibers. As structural properties, pore size distribution was calculated, and these values almost agreed with actual measurement values. Furthermore, our past two-phase network model was improved, and the model based on an actual heterogeneous structure was developed by a direct 3 D networking porous structure. And the influence of GDL structure on the two-phase condition with accumulated water was evaluated, and effective diffusion coefficient of oxygen in GDL with liquid water was calculated. It became possible to compare the performance of mass transfer in various wet GDL.
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U2 - 10.1299/kikaib.76.763_415
DO - 10.1299/kikaib.76.763_415
M3 - Article
AN - SCOPUS:77953643047
SN - 0387-5016
VL - 76
SP - 415
EP - 417
JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
IS - 763
ER -