抄録
In the planar solid oxide fuel cell (SOFC), the fuel/oxidant distributions cause current and temperature distributions over the electrodes under the separator (interconnector) ribs and flow channels. Optimized designs of the separator to improve the output power and chemical/thermo-mechanical durability of practical stacks require numerical models validated by in-situ current distributions measured. We have therefore clarified the difference of in-situ measurements in-plane spatial current variations between an anode-supported planar SOFC and electrolyte-supported by segmented cathodes opposing the anode rib and flow channels. We focus on the effect of the rib width on the spatial current distribution. We model the current and hydrogen partial pressure distributions by finite element modeling so that the model agrees with the in-situ measurements by the segmented cathodes with determining the exchange current densities, electrode porosities, electrolyte ion conductivities, and electrode ion/electron conductivities.
| 元の言語 | 英語 |
|---|---|
| ホスト出版物のタイトル | ECS Transactions |
| 編集者 | T. Kawada, S. C. Singhal |
| 出版者 | Electrochemical Society Inc. |
| ページ | 2203-2209 |
| ページ数 | 7 |
| エディション | 1 |
| ISBN（電子版） | 9781607685395 |
| DOI | |
| 出版物ステータス | 出版済み - 5 30 2017 |
| イベント | 15th International Symposium on Solid Oxide Fuel Cells, SOFC 2017 - Hollywood, 米国 継続期間: 7 23 2017 → 7 28 2017 |
出版物シリーズ
| 名前 | ECS Transactions |
|---|---|
| 番号 | 1 |
| 巻 | 78 |
| ISSN（印刷物） | 1938-5862 |
| ISSN（電子版） | 1938-6737 |
その他
| その他 | 15th International Symposium on Solid Oxide Fuel Cells, SOFC 2017 |
|---|---|
| 国 | 米国 |
| 市 | Hollywood |
| 期間 | 7/23/17 → 7/28/17 |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
これを引用
In-situ analysis of the in-plane current distribution difference between electrolyte-supported and anode-supported planar solid oxide fuel cells by segmented electrodes. / Ochiai, T.; Nakajima, H.; Karimata, T.; Kitahara, T.; Ito, K.; Ogura, Y.
ECS Transactions. 版 / T. Kawada; S. C. Singhal. 1. 編 Electrochemical Society Inc., 2017. p. 2203-2209 (ECS Transactions; 巻 78, 番号 1).研究成果: 著書/レポートタイプへの貢献 › 会議での発言
}
TY - GEN
T1 - In-situ analysis of the in-plane current distribution difference between electrolyte-supported and anode-supported planar solid oxide fuel cells by segmented electrodes
AU - Ochiai, T.
AU - Nakajima, H.
AU - Karimata, T.
AU - Kitahara, T.
AU - Ito, K.
AU - Ogura, Y.
PY - 2017/5/30
Y1 - 2017/5/30
N2 - In the planar solid oxide fuel cell (SOFC), the fuel/oxidant distributions cause current and temperature distributions over the electrodes under the separator (interconnector) ribs and flow channels. Optimized designs of the separator to improve the output power and chemical/thermo-mechanical durability of practical stacks require numerical models validated by in-situ current distributions measured. We have therefore clarified the difference of in-situ measurements in-plane spatial current variations between an anode-supported planar SOFC and electrolyte-supported by segmented cathodes opposing the anode rib and flow channels. We focus on the effect of the rib width on the spatial current distribution. We model the current and hydrogen partial pressure distributions by finite element modeling so that the model agrees with the in-situ measurements by the segmented cathodes with determining the exchange current densities, electrode porosities, electrolyte ion conductivities, and electrode ion/electron conductivities.
AB - In the planar solid oxide fuel cell (SOFC), the fuel/oxidant distributions cause current and temperature distributions over the electrodes under the separator (interconnector) ribs and flow channels. Optimized designs of the separator to improve the output power and chemical/thermo-mechanical durability of practical stacks require numerical models validated by in-situ current distributions measured. We have therefore clarified the difference of in-situ measurements in-plane spatial current variations between an anode-supported planar SOFC and electrolyte-supported by segmented cathodes opposing the anode rib and flow channels. We focus on the effect of the rib width on the spatial current distribution. We model the current and hydrogen partial pressure distributions by finite element modeling so that the model agrees with the in-situ measurements by the segmented cathodes with determining the exchange current densities, electrode porosities, electrolyte ion conductivities, and electrode ion/electron conductivities.
UR - http://www.scopus.com/inward/record.url?scp=85028452985&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85028452985&partnerID=8YFLogxK
U2 - 10.1149/07801.2203ecst
DO - 10.1149/07801.2203ecst
M3 - Conference contribution
AN - SCOPUS:85028452985
T3 - ECS Transactions
SP - 2203
EP - 2209
BT - ECS Transactions
A2 - Kawada, T.
A2 - Singhal, S. C.
PB - Electrochemical Society Inc.
ER -