Plasma-assisted Rotating Detonation Combustor Operation

Zhu, Yonry; Anand, Vijay; Jodele, Justas; Knight, Ethan; Gutmark, Ephraim; Burnette, David

doi:10.2514/6.2017-4742

Cited by 7 publications

(5 citation statements)

References 25 publications

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“…Plasma produced by nanosecond high voltage pulses is widely studied during last 15 years. A broad interest to nanosecond discharges is explained by their potential applications in plasma-assisted combustion [1][2][3] and detonation [4][5][6], aerodynamics and flow control [7].…”

Section: Introductionmentioning

confidence: 99%

Filamentary nanosecond surface dielectric barrier discharge. Plasma properties in the filaments

Shcherbanev

Ding

Starikovskaia

et al. 2019

Plasma Sources Sci. Technol.

100

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Streamer-to-filament transition is a general feature of nanosecond discharges at elevated pressure. The transition is observed in different discharges by different groups: in the nanosecond surface dielectric barrier discharges (nSDBDs) in a single shot regime at high pressure (2-15 bar), in the point-to-point or point-to-plane open electrodes discharges at high repetitive frequency (so-called nanosecond repetitive pulsed discharges, NRPDs) at atmospherics pressure. The present paper contains experimental analysis of plasma properties in the filamentary nSDBD: the electrical current, the specific deposited energy, the electron density and the electron temperature were measured for a wide range of pressures and voltages. A model explaining plasma properties in filamentary nanosecond discharges and the role of excited species in streamer-to-filament transition is suggested and discussed.

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Section: Introductionmentioning

confidence: 99%

Filamentary nanosecond surface dielectric barrier discharge. Plasma properties in the filaments

Shcherbanev

Ding

Starikovskaia

et al. 2019

Plasma Sources Sci. Technol.

100

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“…The sensitive pressure transducer are coated by an adapter with water cooling system to prevent damage from the product of supersonic combustion. Due to the high temperature, the engine was also run for short duration of time which is the common practice of many studies related to supersonic combustion [16][17][18][19] , and for this particular study at 1s.…”

Section: Methods and Experimental Setupmentioning

confidence: 99%

Initiation Characteristics of Rotating Supersonic Combustion Engine

Mazlan¹,

Yasin²,

Saat³

et al. 2021

Evergreen

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A rotating supersonic combustion engine (RSCE) is tested with various initiator tube positions along the combustion chamber to determine its impact on the ignition process. The type of fuel used is methane with oxygen as the oxidizer. The initiation of RSCE is assessed for nearstoichiometric methane-oxygen mixture to slightly rich mixture. Successful initiation of rotating supersonic combustion in the RSCE was obtained when the position of the initiator tube is located higher end of the combustion chamber that indicates a proper mixing of reactants. The mixing of reactants improves further up the annulus chamber of the RSCE.

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“…The power P(W) of the nanosecond discharge injected into a DBD cracking reactor can be obtained by formula (1).…”

Section: Experimental Device and Methodsmentioning

confidence: 99%

“…With the development of the aviation industry, it has become much more difficult to improve the isobaric combustion efficiency of the conventional turbine aircraft engine [1]. However, due to the higher efficient thermal cycling [2], detonation combustion has become a research hotspot.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on n-decane plasma cracking in an atmospheric-pressure argon environment

Xu¹,

Jin²,

Song³

2019

Plasma Sci. Technol.

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In order to solve the problem of the difficulty of igniting and steadily propagating a continuous rotating detonation engine when using liquid hydrocarbon fuel, an experiment was carried out using a dielectric barrier discharge excited by a nanosecond power supply to crack n-decane, the single alternative fuel to aviation kerosene, in a pre-heated argon environment. By changing the voltages and the discharge frequencies, the concentrations of different components as well as a number of different species were acquired. The generating mechanism of olefins and alkanes together with their competition mechanism were acquired. The influence of the voltage on isomer products was also analyzed. The results demonstrate that the bond energy distribution and the species generating condition are the main factors affecting the formation of the products. With the increasing of voltage and discharge frequency, small molecule olefins, large molecular olefins, large molecular alkanes, small molecular alkanes, and hydrogen were detected, and in turn, their concentrations were also increased except for ethylene; what is more, when the voltage was increased over 8.5 kV, the n-butene converted to trans-butene, and the n-pentene converted to isoamylene.

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Plasma-assisted Rotating Detonation Combustor Operation

Cited by 7 publications

References 25 publications

Filamentary nanosecond surface dielectric barrier discharge. Plasma properties in the filaments

Filamentary nanosecond surface dielectric barrier discharge. Plasma properties in the filaments

Initiation Characteristics of Rotating Supersonic Combustion Engine

Experimental investigation on n-decane plasma cracking in an atmospheric-pressure argon environment

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