Evaluation of two-phase condition and mass transfer in GDL with pore network model

Gen Inoue, Yosuke Matsukuma, Masaki Minemoto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationProceedings of the 7th International Conference on Fuel Cell Science, Engineering, and Technology 2009
Pages379-385
Number of pages7
DOIs
Publication statusPublished - Dec 1 2009
Event7th International Conference on Fuel Cell Science, Engineering, and Technology 2009 - Newport Beach, CA, United States
Duration: Jun 8 2009Jun 10 2009

Publication series

NameProceedings of the 7th International Conference on Fuel Cell Science, Engineering, and Technology 2009

Other

Other7th International Conference on Fuel Cell Science, Engineering, and Technology 2009
CountryUnited States
CityNewport Beach, CA
Period6/8/096/10/09

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Fuel Technology

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