Comparison of the Energy Efficiency of Ignition of a Fuel Mixture by Spark and Streamer Discharges

Булат, П. В.; Волков, К. Н.; Grachev, L. P.; Esakov, I. I.; Lavrov, P. B.; Prodan, N. V.; Chernyshov, P. S.

doi:10.1134/s1063785021080058

Cited by 3 publications

(2 citation statements)

References 12 publications

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“…Initiators were half-wave linear vibrators in the form of metal wire segments with rounded ends and were located on the axis of the chamber and simultaneously parallel to the polarization vector of microwave radiation. The results of studies carried out in papers [1][2][3], demonstrated the possibility in principal to implement microwave ignition systems in high-pressure combustion chambers and their prospects. At the same time, the initiated microwave discharges were in the form of single streamers of limited length, which is explained by the short duration of radiation source pulses.…”

Section: Introductionmentioning

confidence: 99%

“…Use of initiated microwave discharges for ignition of combustible mixtures in the high-pressure chamber makes it possible to both create such discharges at significantly lower power of a microwave energy source, but also to localize them in the working chamber in the right place [1]. Comparative studies of the process of combustible mixture ignition by spark discharge from plugs of standard configuration and initiated microwave discharges were carried out in paper [2]. The study results demonstrated that ignition using a microwave discharge is much more energy efficient than the spark one [3].…”

Section: Introductionmentioning

confidence: 99%

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Electrodynamic model of combustion chamber using subcritical streamer discharge to ignite fuel mixture

et al. 2022

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Various electrodynamic models of a combustion chamber, in which an initiated subcritical streamer discharge is used to ignite a combustible mixture, are considered. To localize the discharge in the working chamber, discharge initiators are used based on half-wave electromagnetic vibrators with resonant properties. The dependences of the structure of the electric fields that form the discharge on the geometric parameters of the discharge initiator are obtained on the basis of numerical calculations, and the issues of matching the chamber with the radiation generator are considered. Comparison of the calculation options for different positions of the initiator of the discharge in relation to the optical centreline of the camera. Possibilities for further enhancement of the field in the working zone at the poles of the microwave discharge initiator, which is required for the formation of discharges with a developed streamer structure at elevated gas pressures in the combustion chamber, are discussed. The ways of increasing the resulting electromagnetic field in the area of vibrators for the formation of discharges with a volumetric structure have been determined. Keywords: microwave radiation, streamer discharge, electrodynamic model, plasma combustion, combustion chamber.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electrodynamic model of combustion chamber using subcritical streamer discharge to ignite fuel mixture

et al. 2022

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Electrodynamic Model of Combustion Chamber With Initiated Subcritical Streamer Discharge

Булат

Esakov

Ravaev

et al. 2022

IEEE Trans. Plasma Sci.

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Various electrodynamic models of a combustion chamber are considered, in which an initiated subcritical streamer discharge is used to ignite a combustible mixture. To localize the discharge in the working chamber, initiators based on half-wave electromagnetic vibrators with resonant properties are used. The dependences of the structure of the electric fields forming the discharge on the geometric parameters of the discharge initiator are obtained, and the issues of matching the chamber with the radiation generator are considered. Comparison of the calculation options for different positions of the initiator of the discharge in relation to the optical axis of the camera. Possibilities for further enhancement of the field in the working zone at the poles of the microwave discharge initiator, which is required for the formation of discharges with a developed streamer structure at elevated gas pressures in the combustion chamber, are discussed. The ways of increasing the resulting electromagnetic field in the area of vibrators for the formation of discharges with a volumetric structure have been determined.

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Ignition of a Combustible Gas Mixture by a Microwave Subcritical Streamer Discharge in a High-Speed Flow

Volkov,

Bulat,

Grachev

et al. 2023

Fluid Dyn

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Comparison of the Energy Efficiency of Ignition of a Fuel Mixture by Spark and Streamer Discharges

Cited by 3 publications

References 12 publications

Electrodynamic model of combustion chamber using subcritical streamer discharge to ignite fuel mixture

Electrodynamic model of combustion chamber using subcritical streamer discharge to ignite fuel mixture

Electrodynamic Model of Combustion Chamber With Initiated Subcritical Streamer Discharge

Ignition of a Combustible Gas Mixture by a Microwave Subcritical Streamer Discharge in a High-Speed Flow

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