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Ignition Experiments by Nanosecond Repetitively Pulsed Discharges in Intense Turbulence for Super Lean Burn at Engine Condition
Technical Paper
2019-01-2160
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Ignition by Nanosecond Repetitively Pulsed Discharges (NRPD) at EXponential Increase of Minimum Ignition Energy (MIE-EXI) region under super lean SI engine conditions was studied. Fundamental experiments were conducted with a turbulent ignition test chamber with twin counter-rotating fans. The MIE-EXI region by arc discharge appeared over 6500 rpm of fan speed. In the MIE-EXI region (7000 rpm), successful ignition was achieved by establishing coupled ignition kernels with NRPD at 15 kHz although ignition was unsuccessful at 1 kHz. Results show that ignition by NRPD has potential advantages for lean burn applications. Preliminary engine test results with NRPD were also demonstrated.
Authors
- Kodai Uesugi - Institute of Fluid Science, Tohoku University
- Youhi Morii - Institute of Fluid Science, Tohoku University
- Taichi Mukoyama - Institute of Fluid Science, Tohoku University
- Takuya Tezuka - Institute of Fluid Science, Tohoku University
- Susumu Hasegawa - Institute of Fluid Science, Tohoku University
- Hisashi Nakamura - Institute of Fluid Science, Tohoku University
- Hidemasa Takana - Institute of Fluid Science, Tohoku University
- Kaoru Maruta - Institute of Fluid Science, Tohoku University / ICE Lab. Far
- Takeshi Yokomori - Keio University
- Norimasa Iida - Keio University
Citation
Uesugi, K., Morii, Y., Mukoyama, T., Tezuka, T. et al., "Ignition Experiments by Nanosecond Repetitively Pulsed Discharges in Intense Turbulence for Super Lean Burn at Engine Condition," SAE Technical Paper 2019-01-2160, 2019, https://doi.org/10.4271/2019-01-2160.Data Sets - Support Documents
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