TY - GEN
T1 - Effect of internal and interface structure of GDL on liquid water and oxygen transport in PEFC
AU - Inoue, Gen
AU - Matsukuma, Yosuke
AU - Minemoto, Masaki
PY - 2010/12/1
Y1 - 2010/12/1
N2 - In order to improve the output performance of PEFC, it is important to increase the oxygen concentration at Pt catalyst surface, so the mass transfer performance of gas diffusion layer (GDL) and micro porous layer (MPL) have to be increased. In this study, the real GDL structure was reconstructed by X-ray CT image of carbon paper GDL with MPL. Two-phase flow analysis in GDL with MPL was carried out. In addition, the oxygen transfer calculation was combined with this model. So the effect of MPL on the liquid water distribution in GDL and the gas diffusion performance in wet condition were examined. Furthermore, considering the overlap layer of GDL and MPL, the overall oxygen transfer from channel to catalyst layer was evaluated, and the optimum condition was examined.
AB - In order to improve the output performance of PEFC, it is important to increase the oxygen concentration at Pt catalyst surface, so the mass transfer performance of gas diffusion layer (GDL) and micro porous layer (MPL) have to be increased. In this study, the real GDL structure was reconstructed by X-ray CT image of carbon paper GDL with MPL. Two-phase flow analysis in GDL with MPL was carried out. In addition, the oxygen transfer calculation was combined with this model. So the effect of MPL on the liquid water distribution in GDL and the gas diffusion performance in wet condition were examined. Furthermore, considering the overlap layer of GDL and MPL, the overall oxygen transfer from channel to catalyst layer was evaluated, and the optimum condition was examined.
UR - http://www.scopus.com/inward/record.url?scp=84860303674&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84860303674&partnerID=8YFLogxK
U2 - 10.1115/FuelCell2010-33242
DO - 10.1115/FuelCell2010-33242
M3 - Conference contribution
AN - SCOPUS:84860303674
SN - 9780791844045
T3 - ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2010
SP - 689
EP - 696
BT - ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2010
T2 - ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2010
Y2 - 14 June 2010 through 16 June 2010
ER -