2014 Fiscal Year Final Research Report
Integrative Understanding of Mass Transport Phenomena in a PEMFC by Laser Ablation Tagging Visualization and Oxygen Absorption Spectroscopy
| Project/Area Number |
22246024
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (A)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Thermal engineering
|
|---|
| Research Institution | Tokyo Institute of Technology |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
TSUSHIMA Shohji 大阪大学, 大学院工学研究科, 教授 (30323794)
UEMURA Suguru 東京工業大学, 大学院理工学研究科, 助教 (70515163)
NISHIDA Kosuke 京都工芸繊維大学, 工芸科学研究科, 准教授 (00397043)
|
|---|
| Project Period (FY) |
2010-04-01 – 2015-03-31
|
| Keywords | エネルギー利用 / 燃料電池 / 物質輸送 / レーザ応用計測 / 吸収分光 |
|---|
| Outline of Final Research Achievements |
We developed a visualization system of gas flow behavior called laser ablation tagging visualization (LATV), which showed a strong potential to examine flow behaviors in gas flow channel in an operating proton exchange membrane fuel cells (PEMFC). LATV system was constructed with two pulsed lasers: one is for laser ablation tagging and the other is for excitation of the tag material for visualization. The system was validated and was also applied to an operating PEMFC. Flow velocity in gas channel at operating conditions was examined with variation of current density. The results obtained by LATV shows deceleration of the cathode gas flow velocity. It suggests that the liquid water condensed in the downstream of the channel. Combined measurement with flow velocity and oxygen concentration along the cathode channel is also demonstrated to obtain variation of local current in the cell. It revealed that intensive reaction was established in the upstream region of the cell.
|
| Free Research Field |
エネルギー学・熱工学
|
