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Emission Spectroscopy Study of the Microwave Discharge Igniter
Technical Paper
2017-24-0153
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Requirements for reducing consumption of hydrocarbon fuels, as well as reducing emissions force the scientific community to develop new ignition systems. One of possible solutions is an extension of the lean ignition limit of stable combustion. With the decrease of the stoichiometry of combustible mixture the minimal size of the ignition kernel (necessary for development of combustion) increases. Therefore, it is necessary to use some special techniques to extend the ignition kernel region. Pulsed microwave discharge allows the formation of the ignition kernels of larger diameters. Although the microwave discharge igniter (MDI) was already tested for initiation of combustion and demonstrated quite promising results, the parameters of plasma was not yet studied before. Present work demonstrates the results of the dynamics of spatial structure of the MDI plasma with nanosecond time resolution. It was shown that the size of the plasma region increases from 2-4 to 10-15 mm3 during the discharge development. Gas temperature and vibrational temperature were measured with optical emission spectroscopy. The electric field in the discharge was measured from the analysis of emission intensities of the first negative (N+2(B2Σ+u) → N+2(X2Σ+u)) and the second positive (N2(C3Πu) → N2(B3Πg)) systems of molecular nitrogen. The electron density was estimated from the atomic line broadening.
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Shcherbanev, S., De Martino, A., Khomenko, A., Starikovskaia, S. et al., "Emission Spectroscopy Study of the Microwave Discharge Igniter," SAE Technical Paper 2017-24-0153, 2017, https://doi.org/10.4271/2017-24-0153.Also In
References
- Starikovskaia S M 2006 Plasma assisted ignition and combustion Journal of Physics D: Applied Physics 39 R265
- Shiraishi , T. , Urushihara , T. , Gundersen , M. A trial of ignition innovation of gasoline engine by nanosecond pulsed low temperature plasma ignition J. Phys. D: Appl. Phys. 42 135 208 2009
- Beduneau , J.L. , Ikeda , Y. Application of laser ignition on laminar flame front investigation Exp. Fluids 36 1 108 113 2003
- Shcherbanev , S.A. , Popov , N.A. , Starikovskaia , S.M. Ignition of high pressure lean H 2 :air mixtures along the multiple channels of nanosecond surface discharge Combustion and Flame 176 2017 272 284
- Ikeda Yuji , Nishiyama Atsushi , Kaneko Masashi Microwave Enhanced Ignition Process for Fuel Mixture at Elevated Pressure of 1 MPa AIAA 2009-223
- Popov , N.A. Pulsed nanosecond discharge in air at high specific deposited energy: fast gas heating and active particle production Plasma Sources Science and Technology 2016 25 044003
- Wolk , B. , DeFilippo , A. , Chen , J.-Y. , Dibble , R. , Nishiyama , A. Ikeda Y. Enhancement of flame development by microwave-assisted spark ignition in constant volume combustion chamber Combustion and Flame 160 2013 1225 1234
- Ikeda , Y. , Nishiyama , A. , Wachi , Y. , and Kaneko , M. Research and Development of Microwave Plasma Combustion Engine (Part I: Concept of Plasma Combustion and Plasma Generation Technique) SAE Technical Paper 2009-01-1050 2009 10.4271/2009-01-1050
- Laux C.O. , Spence T.G. , Kruger C.H. , Zare R.N. Optical diagnostics of atmospheric pressure air plasmas Plasma Sources Sci. Technol. 12 2 2003 125
- Paris P , Aints M , Valk F , Plank T , Haljaste A , Kozlov K V and Wagner H-E 2005 Intensity ratio of spectral bands of nitrogen as a measure of electric field strength in plasmas J. Phys. D: Appl. Phys. 38 3894 9
- Paris P , Aints M , Laan M and Valk F 2004 Measurement of intensity ratio of nitrogen bands as a function of field strength J. Phys. D: Appl. Phys. 37 1179 84
- Naidis G V. 2007 Modelling of transient plasma discharges in atmospheric-pressure methane-air mixtures J. Phys. D: Appl. Phys. 40 4525 4531
- Pendleton SJ , Montello A , Carter C , Lempert W and Gundersen MA 2012 Vibrational and rotational CARS measurements of nitrogen in afterglow of streamer discharge in atmospheric pressure fuel/air mixtures J. Phys. D: Appl. Phys. 45 1 8