Abstract
The flooding, especially in gas diffusion layer (GDL), is one of the critical issues to put PEMFC to practical use. However, the experimental data of the flooding in GDL is so insufficient that the optimization design to solve the flooding problem in GDL has not established until now. In this study we show a method to estimate the water saturation, namely the water droplet occupation for unit volume in GDL. We fabricated a simple interdigitated cell where the supply gas is enforced to flow under rib. This structure made it possible to capture the water droplet in GDL with the measurement of differential pressure through the cell. We operated the cell and measured the differential pressure, and estimated the water saturation with assuming that the flow in GDL is Darcy flow and that the GDL can be treated as sphere packed bed. In addition to deferential pressure measurement, we measured the ionic resistance in polymer electrolyte membrane by AC impedance method. We evaluated the effect of the water saturation on the decrease of cell voltage.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of 4th International ASME Conference on Fuel Cell Science, Engineering and Technology, FUELCELL2006 |
| Publication status | Published - Dec 1 2006 |
| Event | 4th International ASME Conference on Fuel Cell Science, Engineering and Technology, FUELCELL2006 - Irvine, CA, United States Duration: Jun 19 2006 → Jun 21 2006 |
Publication series
| Name | Proceedings of 4th International ASME Conference on Fuel Cell Science, Engineering and Technology, FUELCELL2006 |
|---|---|
| Volume | 2006 |
Other
| Other | 4th International ASME Conference on Fuel Cell Science, Engineering and Technology, FUELCELL2006 |
|---|---|
| Country | United States |
| City | Irvine, CA |
| Period | 6/19/06 → 6/21/06 |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
Cite this
Estimation of flooding in PEMFC gas diffusion layer by differential pressure measurement. / Ito, Kohei; Ohshima, Hiroki; Oie, Yoshiyuki; Ashikaga, Kensuke; Kakimoto, Yasushi; Sasaki, Kazunari; Miyazaki, Tomohiko; Masuda, Hiromitsu.
Proceedings of 4th International ASME Conference on Fuel Cell Science, Engineering and Technology, FUELCELL2006. 2006. (Proceedings of 4th International ASME Conference on Fuel Cell Science, Engineering and Technology, FUELCELL2006; Vol. 2006).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Estimation of flooding in PEMFC gas diffusion layer by differential pressure measurement
AU - Ito, Kohei
AU - Ohshima, Hiroki
AU - Oie, Yoshiyuki
AU - Ashikaga, Kensuke
AU - Kakimoto, Yasushi
AU - Sasaki, Kazunari
AU - Miyazaki, Tomohiko
AU - Masuda, Hiromitsu
PY - 2006/12/1
Y1 - 2006/12/1
N2 - The flooding, especially in gas diffusion layer (GDL), is one of the critical issues to put PEMFC to practical use. However, the experimental data of the flooding in GDL is so insufficient that the optimization design to solve the flooding problem in GDL has not established until now. In this study we show a method to estimate the water saturation, namely the water droplet occupation for unit volume in GDL. We fabricated a simple interdigitated cell where the supply gas is enforced to flow under rib. This structure made it possible to capture the water droplet in GDL with the measurement of differential pressure through the cell. We operated the cell and measured the differential pressure, and estimated the water saturation with assuming that the flow in GDL is Darcy flow and that the GDL can be treated as sphere packed bed. In addition to deferential pressure measurement, we measured the ionic resistance in polymer electrolyte membrane by AC impedance method. We evaluated the effect of the water saturation on the decrease of cell voltage.
AB - The flooding, especially in gas diffusion layer (GDL), is one of the critical issues to put PEMFC to practical use. However, the experimental data of the flooding in GDL is so insufficient that the optimization design to solve the flooding problem in GDL has not established until now. In this study we show a method to estimate the water saturation, namely the water droplet occupation for unit volume in GDL. We fabricated a simple interdigitated cell where the supply gas is enforced to flow under rib. This structure made it possible to capture the water droplet in GDL with the measurement of differential pressure through the cell. We operated the cell and measured the differential pressure, and estimated the water saturation with assuming that the flow in GDL is Darcy flow and that the GDL can be treated as sphere packed bed. In addition to deferential pressure measurement, we measured the ionic resistance in polymer electrolyte membrane by AC impedance method. We evaluated the effect of the water saturation on the decrease of cell voltage.
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M3 - Conference contribution
AN - SCOPUS:33845808325
SN - 0791837807
SN - 9780791837801
T3 - Proceedings of 4th International ASME Conference on Fuel Cell Science, Engineering and Technology, FUELCELL2006
BT - Proceedings of 4th International ASME Conference on Fuel Cell Science, Engineering and Technology, FUELCELL2006
ER -