The influence of electrode geometry and gas flow on corona-to-glow and glow-to-spark threshold currents in air

Akishev, Yu. S.; Goossens, Olivier; Callebaut, Tom; Leys, Christophe; Napartovich, A. P.; Трушкин, Н. И.

doi:10.1088/0022-3727/34/18/322

Cited by 143 publications

(73 citation statements)

References 8 publications

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“…Experiments are carried out with a total air flow of 2 L min -1 and with varying inlet concentrations of TCE (420 -4000 ppm). The multi-pin-to-plate plasma source is based on the concept of a negative DC glow discharge [7,9]. It consists of 5 aligned pins which were positioned 28 mm of each other.…”

Section: Methodsmentioning

confidence: 99%

“…This electrode geometry was developed by the group of Akishev et al [5][6][7][8] and was successfully tested for the removal of SO 2 and NO x [9]. Vertriest et al applied a large scale laboratory multi-pin-to-plate negative glow discharge for the removal of VOCs and discovered that molecules containing a double carbon bond have the lowest energy requirement for decomposition [2].…”

Section: Introductionmentioning

confidence: 99%

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Non-thermal plasma abatement of trichloroethylene with DC corona discharges

Vandenbroucke

Vanderstricht

Dinh

et al. 2011

WIT Transactions on Ecology and the Environment

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The decomposition of trichloroethylene (TCE) in air by non-thermal plasma was investigated with a multi-pin-to-plate direct current (DC) discharge at atmospheric pressure and room temperature. The effects of various operating parameters on the removal efficiency (RE) were examined. The experiments indicated that for low energy densities higher removal could be obtained with positive corona. For negative corona and 10% relative humidity (RH) a maximum RE of 99.5% could be achieved at 1100 J L -1 . Formation of byproducts was qualitatively analyzed in detail with FT-IR spectroscopy and mass spectrometry. Detected by-products for negative corona operated at 300 J L -1 and 10% RH include dichloroacetylchloride, trichloroacetaldehyde, phosgene, ozone, HCl, Cl 2 , CO and CO 2 . The highest RE for TCE was achieved with a relative humidity of 19%.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Non-thermal plasma abatement of trichloroethylene with DC corona discharges

Vandenbroucke

Vanderstricht

Dinh

et al. 2011

WIT Transactions on Ecology and the Environment

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“…One method to stabilize plasma is decreasing the heating instability of the discharge by a high gas flow. 6,7 Most important species generated in a nitrogen plasma and an air plasma with a long life time are various N 2 metastables, nitric oxide (NO), nitrous oxide (N 2 O), ozone (O 3 ), atomic oxygen (O), and singlet oxygen ( 1 O 2 ). 8 Nitrogen metastables and 1 O 2 can be utilized in biomedicine for bacteria killing and sterilization 9,10 because of the high energy of those excited species.…”

Section: Introductionmentioning

confidence: 99%

Direct current plasma jet at atmospheric pressure operating in nitrogen and air

Deng

Nikiforov

Vanraes

et al. 2013

Journal of Applied Physics

144

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Toroidal magnetized plasma device with sheared magnetic field lines using an internal ring conductor Rev. Sci. Instrum. 84, 013504 (2013) Energy distribution of electron flux at electrodes in a low pressure capacitively coupled plasma J. Appl. Phys. 113, 023306 (2013) A simple class of singular, two species Vlasov equilibria sustaining nonmonotonic potential distributions Phys. Plasmas 20, 012107 (2013) Collisional and collective effects in two dimensional model for fast-electron transport in refluxing regime Phys. Plasmas 20, 013104 (2013) Electrostatic supersolitons in three-species plasmas Phys. Plasmas 20, 012302 (2013) Additional information on J. Appl. Phys. An atmospheric pressure direct current (DC) plasma jet is investigated in N 2 and dry air in terms of plasma properties and generation of active species in the active zone and the afterglow. The influence of working gases and the discharge current on plasma parameters and afterglow properties are studied. The electrical diagnostics show that discharge can be sustained in two different operating modes, depending on the current range: a self-pulsing regime at low current and a glow regime at high current. The gas temperature and the N 2 vibrational temperature in the active zone of the jet and in the afterglow are determined by means of emission spectroscopy, based on fitting spectra of N 2 second positive system (C 3 P-B 3 P) and the Boltzmann plot method, respectively. The spectra and temperature differences between the N 2 and the air plasma jet are presented and analyzed. Space-resolved ozone and nitric oxide density measurements are carried out in the afterglow of the jet. The density of ozone, which is formed in the afterglow of nitrogen plasma jet, is quantitatively detected by an ozone monitor. The density of nitric oxide, which is generated only in the air plasma jet, is determined by means of mass-spectroscopy techniques. V C 2013 American Institute of Physics. [http://dx

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“…[1][2][3][4][5][6][7] These nonthermal atmospheric plasmas are typically generated between two parallel electrodes with voltage excitation at dc, [8][9][10][11] at the main frequency, 12 or at higher frequencies, from kilohertz to megahertz. [3][4][5][6][7] Their spatial appearance is characteristically diffuse and uniform, and their temporal features are repetitive and stable.…”

Section: Introductionmentioning

confidence: 99%

Cathode fall characteristics in a dc atmospheric pressure glow discharge

Shi

Kong

2003

Journal of Applied Physics

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Atmospheric pressure glow discharges are attractive for a wide range of material-processing applications largely due to their operation flexibility afforded by removal of the vacuum system. These relatively new atmospheric plasmas are nonequilibrium plasmas with gas temperature around 100°C and electron temperature in the 1-10 eV range. Their appearance is characteristically diffuse and uniform, and their temporal features are repetitive and stable. Of the reported numerical studies of atmospheric glow discharges, most are based on the hydrodynamic approximation in which electrons are assumed to be in equilibrium with the local electric field. Spectroscopic and electrical measurements suggest however that the cathode fall region is fundamentally nonequilibrium. To this end we consider a hybrid model that treats the cathode fall region kinetically but retains a hydrodynamic description for the region between the thin cathode fall layer and the anode. Using this hybrid model, a helium discharge system excited at dc is studied numerically for a very wide current density range that spans from Townsend dark discharge, through normal glow discharge, to abnormal glow discharge. Numerical results confirm many distinct characteristics of glow discharges and compare well with that of low-pressure glow discharges. Generic relationships, such as that between the electric field and the current density, are also established and are in good agreement with experimental data. This hybrid model is simple and insightful as a theoretical tool for atmospheric pressure glow discharges.

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The influence of electrode geometry and gas flow on corona-to-glow and glow-to-spark threshold currents in air

Cited by 143 publications

References 8 publications

Non-thermal plasma abatement of trichloroethylene with DC corona discharges

Non-thermal plasma abatement of trichloroethylene with DC corona discharges

Direct current plasma jet at atmospheric pressure operating in nitrogen and air

Cathode fall characteristics in a dc atmospheric pressure glow discharge

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