Evaluation of liquid and mass transfer in GDL by direct network simulation

G. Inoue, Y. Mutsukuma, M. Minemoto

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

7 Citations (Scopus)

Abstract

It is important to investigate the two-phase condition in PEFC gas diffusion layer (GDL) to improve mass transfer rate. The structure of simulated GDL made of layered carbon fibers was produced by the numerical analysis in this study, and the structural properties of various simulated GDL were investigated, for example pore distribution, permeability and tortuosity. With these structures, the two-phase analysis model in GDL was developed with a 3-dimensional network model converted from simulated GDL directly, and the two-phase condition in GDL was calculated on various conditions of GDL structure and hydrophilicity. And the influences of multi-layer GDL structure were evaluated. As a result, it was confirmed that the liquid water distribution was affected by multi-layer structure and that optimizing the connection of porepore and changing the contact angle along the direction of water flowing out lead to decrease the amount of water and increase O2 diffusivity.

Original languageEnglish
Title of host publicationECS Transactions - Proton Exchange Membrane Fuel Cells 8
Pages1661-1671
Number of pages11
Edition2 PART 2
DOIs
Publication statusPublished - Dec 1 2008
EventProton Exchange Membrane Fuel Cells 8, PEMFC - 214th ECS Meeting - Honolulu, HI, United States
Duration: Oct 12 2008Oct 17 2008

Publication series

NameECS Transactions
Number2 PART 2
Volume16
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

OtherProton Exchange Membrane Fuel Cells 8, PEMFC - 214th ECS Meeting
CountryUnited States
CityHonolulu, HI
Period10/12/0810/17/08

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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    Inoue, G., Mutsukuma, Y., & Minemoto, M. (2008). Evaluation of liquid and mass transfer in GDL by direct network simulation. In ECS Transactions - Proton Exchange Membrane Fuel Cells 8 (2 PART 2 ed., pp. 1661-1671). (ECS Transactions; Vol. 16, No. 2 PART 2). https://doi.org/10.1149/1.2982007