Abstract
Water Problem, which is represented by the flooding and the drying in PEMFC, is one of the critical issues relating to the recent trend of high current density operation of it. For spreading the practical use of PEMFC, we must grasp this problem exactly and resolve it Two-phase flow numerical simulation is useful for this purpose. In this study, we numerically analyzed a unit-PEMFC two-dimensionally considering the two-phase flow based on the multiphase mixture model developed by Cheng and Wang, adding the authors' equivalent electric circuit. We simulated not only steady state but also unsteady state. A slightly abrupt change in current density distribution appeared on the point where the interface between the one- and the two-phase zone in GDL was appeared. The distribution of water saturation after cell operation start changed with time passed: the liquid water tend to focus on the GDL after once it spread in both GDL and flow channel.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 3rd International Conference on Fuel Cell Science, Engineering, and Technology, 2005 |
| Editors | R.K. Shah, E.U. Ubong, S.S. Samuelsen |
| Pages | 19-24 |
| Number of pages | 6 |
| Publication status | Published - Nov 21 2005 |
| Event | 3rd International Conference on Fuel Cell Science, Engineering, and Technology, 2005 - Ypsilanti, MI, United States Duration: May 23 2005 → May 25 2005 |
Publication series
| Name | Proceedings of the 3rd International Conference on Fuel Cell Science, Engineering, and Technology, 2005 |
|---|
Other
| Other | 3rd International Conference on Fuel Cell Science, Engineering, and Technology, 2005 |
|---|---|
| Country | United States |
| City | Ypsilanti, MI |
| Period | 5/23/05 → 5/25/05 |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
Cite this
Investigation of flooding phenomena in PEMFC by two-phase flow numerical simulation. / Ito, Kohei; Masuda, Hiromitsu; Miyazaki, Tomohiko; Kakimoto, Yasushi; Masuoka, Takashi.
Proceedings of the 3rd International Conference on Fuel Cell Science, Engineering, and Technology, 2005. ed. / R.K. Shah; E.U. Ubong; S.S. Samuelsen. 2005. p. 19-24 FUELCELL-74170 (Proceedings of the 3rd International Conference on Fuel Cell Science, Engineering, and Technology, 2005).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Investigation of flooding phenomena in PEMFC by two-phase flow numerical simulation
AU - Ito, Kohei
AU - Masuda, Hiromitsu
AU - Miyazaki, Tomohiko
AU - Kakimoto, Yasushi
AU - Masuoka, Takashi
PY - 2005/11/21
Y1 - 2005/11/21
N2 - Water Problem, which is represented by the flooding and the drying in PEMFC, is one of the critical issues relating to the recent trend of high current density operation of it. For spreading the practical use of PEMFC, we must grasp this problem exactly and resolve it Two-phase flow numerical simulation is useful for this purpose. In this study, we numerically analyzed a unit-PEMFC two-dimensionally considering the two-phase flow based on the multiphase mixture model developed by Cheng and Wang, adding the authors' equivalent electric circuit. We simulated not only steady state but also unsteady state. A slightly abrupt change in current density distribution appeared on the point where the interface between the one- and the two-phase zone in GDL was appeared. The distribution of water saturation after cell operation start changed with time passed: the liquid water tend to focus on the GDL after once it spread in both GDL and flow channel.
AB - Water Problem, which is represented by the flooding and the drying in PEMFC, is one of the critical issues relating to the recent trend of high current density operation of it. For spreading the practical use of PEMFC, we must grasp this problem exactly and resolve it Two-phase flow numerical simulation is useful for this purpose. In this study, we numerically analyzed a unit-PEMFC two-dimensionally considering the two-phase flow based on the multiphase mixture model developed by Cheng and Wang, adding the authors' equivalent electric circuit. We simulated not only steady state but also unsteady state. A slightly abrupt change in current density distribution appeared on the point where the interface between the one- and the two-phase zone in GDL was appeared. The distribution of water saturation after cell operation start changed with time passed: the liquid water tend to focus on the GDL after once it spread in both GDL and flow channel.
UR - http://www.scopus.com/inward/record.url?scp=27744558756&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=27744558756&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:27744558756
SN - 0791837645
T3 - Proceedings of the 3rd International Conference on Fuel Cell Science, Engineering, and Technology, 2005
SP - 19
EP - 24
BT - Proceedings of the 3rd International Conference on Fuel Cell Science, Engineering, and Technology, 2005
A2 - Shah, R.K.
A2 - Ubong, E.U.
A2 - Samuelsen, S.S.
ER -