TY - GEN
T1 - Evaluation of two-phase condition and mass transfer in GDL with pore network model
AU - Inoue, Gen
AU - Matsukuma, Yosuke
AU - Minemoto, Masaki
PY - 2009/12/1
Y1 - 2009/12/1
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 structure was developed by numerical analysis including the random orientation of carbon fibers and binders. And detailed structural estimation was carried out. As structural properties, pore size distribution, electrical resistivity and tortuosity were 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 structure was developed by a direct 3D 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.
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 structure was developed by numerical analysis including the random orientation of carbon fibers and binders. And detailed structural estimation was carried out. As structural properties, pore size distribution, electrical resistivity and tortuosity were 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 structure was developed by a direct 3D 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.
UR - http://www.scopus.com/inward/record.url?scp=77953777472&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77953777472&partnerID=8YFLogxK
U2 - 10.1115/FuelCell2009-85152
DO - 10.1115/FuelCell2009-85152
M3 - Conference contribution
AN - SCOPUS:77953777472
SN - 9780791848814
T3 - Proceedings of the 7th International Conference on Fuel Cell Science, Engineering, and Technology 2009
SP - 379
EP - 385
BT - Proceedings of the 7th International Conference on Fuel Cell Science, Engineering, and Technology 2009
T2 - 7th International Conference on Fuel Cell Science, Engineering, and Technology 2009
Y2 - 8 June 2009 through 10 June 2009
ER -