Visualization of DBD Plasma-Assisted Ignition Process under Elevated Pressure and Temperature in RCEM
Visualization of DBD Plasma-Assisted Ignition Process under Elevated Pressure and Temperature in RCEM
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20214858
- Paper/Info type
- Symposium Text
- Pages
- 1-6(Total 6 p)
- Date of publication
- Dec 2021
- Publisher
- JSAE & JSME
- Language
- English
Detailed Information
| Author(J) | 1) サウラ アグラワル, 2) 山本 周也, 3) 井上 タカヒロ, 4) 堀部 直人, 5) 林 潤, 6) 川那辺 洋 |
|---|---|
| Author(E) | 1) Saurabh Agrawal, 2) Shuya Yamamoto, 3) Takahiro Inoue, 4) Naoto Horibe, 5) Jun Hayashi, 6) Hiroshi Kawanabe |
| Affiliation(J) | 1) 京都大学, 2) 京都大学, 3) 京都大学 ; 三菱電機, 4) 京都大学, 5) 京都大学, 6) 京都大学 |
| Affiliation(E) | 1) Kyoto University, 2) Kyoto University, 3) Kyoto University ; Mitsubishi Electric Corporation Pvt. Ltd., 4) Kyoto University, 5) Kyoto University, 6) Kyoto University |
| Abstract(E) | Ignition phenomena for dielectric barrier discharge (DBD) in engine conditions were experimentally investigated under elevated pressure and temperature conditions in rapid compression and expansion machine (RCEM). The effect of pressure and temperature on the ignition phenomena of methane/air premixed mixture using DBD plug were investigated. The equivalence ratio was varied to investigate the effect of DBD on the flame kernel development. The discharges and flame kernel were visualized using a high-speed imaging of natural light and of OH* chemiluminescence. Experimental results showed that as the pressure and temperature increases, the discharges get concentrated and change their colour from blue/purple (low pressure) to bright white (high pressure). For the change in equivalence ratio, flame propagation speed decreases as the equivalence ratio decreases. |
