Kinetic Studies of Non-equilibrium Plasma-assisted Ignition and Combustion

2021 ◽  
Author(s):  
Liang Wu
Keyword(s):  
Kinetic Studies ◽  
Equilibrium Plasma ◽  
Ignition And Combustion ◽  
Non Equilibrium

Non-equilibrium plasma for ignition and combustion enhancement

2021 ◽  
Vol 75 (8) ◽  
Author(s):  
Svetlana Starikovskaia ◽  
Deanna A. Lacoste ◽  
Gianpiero Colonna
Keyword(s):  
Equilibrium Plasma ◽  
Combustion Enhancement ◽  
Ignition And Combustion ◽  
Non Equilibrium

scholarly journals Plasma-assisted ignition and deflagration-to-detonation transition

2012 ◽  
Vol 370 (1960) ◽  
pp. 740-773 ◽  
Author(s):  
Andrey Starikovskiy ◽  
Nickolay Aleksandrov ◽  
Aleksandr Rakitin
Keyword(s):  
Electron Impact ◽  
Impact Excitation ◽  
Collisional Quenching ◽  
Equilibrium Plasma ◽  
Active Particles ◽  
Deflagration To Detonation Transition ◽  
Wide Range ◽  
Detonation Transition ◽  
Ignition And Combustion ◽  
Non Equilibrium

Non-equilibrium plasma demonstrates great potential to control ultra-lean, ultra-fast, low-temperature flames and to become an extremely promising technology for a wide range of applications, including aviation gas turbine engines, piston engines, RAMjets, SCRAMjets and detonation initiation for pulsed detonation engines. The analysis of discharge processes shows that the discharge energy can be deposited into the desired internal degrees of freedom of molecules when varying the reduced electric field, E / n , at which the discharge is maintained. The amount of deposited energy is controlled by other discharge and gas parameters, including electric pulse duration, discharge current, gas number density, gas temperature, etc. As a rule, the dominant mechanism of the effect of non-equilibrium plasma on ignition and combustion is associated with the generation of active particles in the discharge plasma. For plasma-assisted ignition and combustion in mixtures containing air, the most promising active species are O atoms and, to a smaller extent, some other neutral atoms and radicals. These active particles are efficiently produced in high-voltage, nanosecond, pulse discharges owing to electron-impact dissociation of molecules and electron-impact excitation of N 2 electronic states, followed by collisional quenching of these states to dissociate the molecules. Mechanisms of deflagration-to-detonation transition (DDT) initiation by non-equilibrium plasma were analysed. For longitudinal discharges with a high power density in a plasma channel, two fast DDT mechanisms have been observed. When initiated by a spark or a transient discharge, the mixture ignited simultaneously over the volume of the discharge channel, producing a shock wave with a Mach number greater than 2 and a flame. A gradient mechanism of DDT similar to that proposed by Zeldovich has been observed experimentally under streamer initiation.

SOME REMARKS ON THE NON-EQUILIBRIUM PLASMA DIAGNOSTICS

1979 ◽  
Vol 40 (C7) ◽  
pp. C7-871-C7-872
Author(s):  
E. F. Gippius ◽  
B. I. Iljukhin ◽  
V. N. Kolesnikov
Keyword(s):  
Plasma Diagnostics ◽  
Equilibrium Plasma ◽  
Non Equilibrium

On the charged aerosols generated by atmospheric pressure non‐equilibrium plasma

High Voltage ◽  
2020 ◽  
Author(s):  
Yanzhe Zhang ◽  
He Cheng ◽  
Haotian Gao ◽  
Dawei Liu ◽  
Xinpei Lu
Keyword(s):  
Atmospheric Pressure ◽  
Equilibrium Plasma ◽  
Charged Aerosols ◽  
Non Equilibrium

Modifications of aluminum film caused by micro-plasmoids and plasma spots in the effluent of an argon non-equilibrium plasma jet

2017 ◽  
Vol 50 (37) ◽  
pp. 375201 ◽  
Author(s):  
Max Engelhardt ◽  
Stefan Ries ◽  
Patrick Hermanns ◽  
Nikita Bibinov ◽  
Peter Awakowicz
Keyword(s):  
Plasma Jet ◽  
Aluminum Film ◽  
Equilibrium Plasma ◽  
Non Equilibrium
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