Experimental Investigation of Premixed Methane–Air Combustion Assisted by Alternating-Current Rotating Gliding Arc

Wu, Wen‐Wei; Ni, Guohua; Lin, Qi; Guo, Qi; Meng, Yue

doi:10.1109/tps.2015.2435036

Cited by 18 publications

(7 citation statements)

References 28 publications

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“…One type of plasma source that has been extensively studied is the gliding arc (GA) which shows characteristics of both thermal and non-thermal discharges. Gliding arc systems have been studied mainly for the treatment of pollutant gases [1][2][3][4][5][6][7] and assisted combustion [8,9], but also for the degradation of pollutants present in liquids [10][11][12], and in other applications such as sterilization [13]. Gliding arc discharges have the advantages of low electrode degradation, moderate translational temperatures (800-2100 K) and vibrational temperatures (2000-3000 K), and electron temperatures near 10 000 K [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Characterization of a rotating gliding arc in argon at atmospheric pressure

McNall¹,

Coulombe²

2018

J. Phys. D: Appl. Phys.

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The dynamics of a low-power (<40 W) rotating gliding arc in atmospheric pressure argon sustained by a homemade dual DC power supply between a conical cathode and a grounded sleeve anode and forced into motion by the combined action of a vortex gas flow (<26.3 SLPM) and axial magnetic field (~0.043–0.122 T) was studied. High-speed imaging and electrical diagnostics were used to gain an understanding of the projected arc length, position of the attachment point on the central cathode, and frequency of arc rotation. The electrical signals revealed a glow-type mode of operation, which characteristically low current and high voltage. The square root dependency of the rotating arc frequency on the applied current predicted by a simplified model considering the gas vortex drag and Lorentz forces was confirmed with measurements. Rotation frequencies in the ~100–300 Hz range with average projected arc lengths of 4–8 mm creating a large stabilized reactive volume were obtained. We further demonstrated that the Lorentz force acting on the rotating gliding arc is equivalent to the hydrodynamic drag caused by an argon flow rate of ~8 SLPM for this device configuration.

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Section: Introductionmentioning

confidence: 99%

Characterization of a rotating gliding arc in argon at atmospheric pressure

McNall¹,

Coulombe²

2018

J. Phys. D: Appl. Phys.

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“…However, the effect of sub-breakdown electric fields on flames (e.g., [155][156][157][158][159]161]) is also commonly considered as a PAC process. The end goals of PAC studies can be grouped into three categories: (1) increase the flammability limits [47,112,[164][165][166]171], (2) stabilize the combustion [172][173][174][175][176][177]179,180], and (3) enhance the burning properties (e.g., burning velocity, soot or pollutant emis-sions. .…”

Section: Plasma-assisted Combustionmentioning

confidence: 99%

Non-equilibrium plasma for ignition and combustion enhancement

2021

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This review is intended to give an overview of recent results on plasma-assisted ignition and combustion. The influence of electrical discharges on combustion processes is introduced, and the excited species and radicals present in large quantity in the plasma are detailed. A description of theoretical problems related to modeling plasma-assisted combustion is given, elucidating the role of excited states in enhancing the reaction rates. Then some experiments are reported, focused on fundamental aspects on the effects of high pressure discharges in improving the ignition of combustion. To conclude, some applications for plasma-assisted combustion and detonation are presented, activated by different kinds of discharges.

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“…The flame structure and burner emissions with a laminar premixed methane/air flame [12] were calculated at an initial temperature of 298 K and at a pressure of 1.013 x 10 5 Pa. [6] The calculation was performed in the domain of 10 cm, which is significantly more than the thickness of the flame. [9] The coefficient of primary excess air λ' varied from 1.0 to 1.7. This data represents the input parameters of the executed calculation.…”

Section: The Goal Of Modelingmentioning

confidence: 99%

Analysis of the performance of a low-power atmospheric burner for gas appliances for households and their impact on the emission and stability of the burner

et al. 2021

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The paper presents results of theoretical numerical research dealing with CO and NOX emission performed in the process of optimization of the performance of low-power atmospheric burners. The theoretical part of this paper, whose main goals were better understanding of the complex issues of methodology and establishment of performance prediction and optimization of low-power atmospheric gas burner included numerical variation of independent parameters, such as burner geometry, the coefficients of primary and secondary air and different gaseous fuels including biogas. The findings of theoretically obtained performance prediction and optimization of atmospheric burners were experimentally investigated in purpose built test rigs for a number of variable parameters. The obtained results fully justified the proposed models of performance prediction and burner optimization.

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Experimental Investigation of Premixed Methane–Air Combustion Assisted by Alternating-Current Rotating Gliding Arc

Cited by 18 publications

References 28 publications

Characterization of a rotating gliding arc in argon at atmospheric pressure

Characterization of a rotating gliding arc in argon at atmospheric pressure

Non-equilibrium plasma for ignition and combustion enhancement

Analysis of the performance of a low-power atmospheric burner for gas appliances for households and their impact on the emission and stability of the burner

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