Electrical and chemical model of negative corona in oxygen at atmospheric pressure

Pontiga, F.; Soria, C.; Castellanos, A.

doi:10.1016/s0304-3886(97)00024-7

Cited by 21 publications

(14 citation statements)

References 4 publications

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“…Pontiga et al [53] have modeled the distribution of species within a negative corona discharge, operating with pure oxygen at 760 torr and an applied voltage of 4.25 kV. His model is based on a discharge between two coaxial electrodes, a wire cathode, and an outer cylinder.…”

Section: Corona Dischargementioning

confidence: 99%

The atmospheric-pressure plasma jet: a review and comparison to other plasma sources

Schütze

Jeong

Babayan

et al. 1998

IEEE Trans. Plasma Sci.

1,263

766

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Abstract-Atmospheric-pressure plasmas are used in a variety of materials processes. Traditional sources include transferred arcs, plasma torches, corona discharges, and dielectric barrier discharges. In arcs and torches, the electron and neutral temperatures exceed 3000 C and the densities of charge species range from 10 16 -10 19 cm 03 . Due to the high gas temperature, these plasmas are used primarily in metallurgy. Corona and dielectric barrier discharges produce nonequilibrium plasmas with gas temperatures between 50-400 C and densities of charged species typical of weakly ionized gases. However, since these discharges are nonuniform, their use in materials processing is limited. Recently, an atmospheric-pressure plasma jet has been developed, which exhibits many characteristics of a conventional, low-pressure glow discharge. In the jet, the gas temperature ranges from 25-200 C, charged-particle densities are 10 11 -10 12 cm 03 , and reactive species are present in high concentrations, i.e., 10-100 ppm. Since this source may be scaled to treat large areas, it could be used in applications which have been restricted to vacuum. In this paper, the physics and chemistry of the plasma jet and other atmospheric-pressure sources are reviewed.Index Terms-Atmospheric pressure, corona discharge, dielectric barrier discharge, plasma jet, plasma torch, thermal and nonthermal plasmas, transferred arc.

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Section: Corona Dischargementioning

confidence: 99%

The atmospheric-pressure plasma jet: a review and comparison to other plasma sources

Schütze

Jeong

Babayan

et al. 1998

IEEE Trans. Plasma Sci.

1,263

766

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show abstract

“…Due to the fact that the discharge with a needle biased negatively is more efficient from the standpoint of ozone generation than the discharge with a needle biased positively [2] the presented experiments were carried out only with the needle biased negatively. The temperature of air injected into the needle was 25 • C. We focused on the emission occurring in the UV spectral region and given predominantly by the N 2 (C 3 Π u → B 3 Π g ) Second positive system (2.PG).…”

Section: Resultsmentioning

confidence: 99%

“…This dissociation is followed by ozone formation [1,2,3]. The ozone generation from air is a complex process, because the rates of involved reactions generally depend on different parameters -e.g.…”

Section: Introductionmentioning

confidence: 99%

Optical diagnostics of the hollow needle to plate electrical discharge in air at atmospheric pressure

Pekárek

Šimek

2004

Czech. J. Phys.

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Vibrational and rotational excitation of the N2(C 3 Πu) state in a DC hollow needle to plate electrical discharge at atmospheric pressure was studied by means of multichannel emission spectrometry. Vibrational distributions and rotational temperatures of the N2(C 3 Πu) electronic state were obtained for a negative polarity of the needle as a function of mean energy density dissipated in the discharge reactor. Vibrational excitation of the N2(C 3 Πu) apparently decreases with increasing energy density and the shape of vibrational distributions reflects predominant processes responsible for the N2(C 3 Πu) state population, i.e. electron impact excitation of N2(X 1 Σ + g , v) ground state and energy pooling mechanism by N2(A 3 Σ + u ) metastables. Rotational temperatures evolve in the range 1000 ÷ 1800 K and show linear increase with energy density dissipated in the discharge reactor.

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“…Readers are referred to [1,10,22,23,27] for a more detailed description. Simulations will primarily be performed in air, except for Section 4 where oxygen is used.…”

Section: Three Species Corona Discharge Modelmentioning

confidence: 99%

A domain decomposition method for three species modeling of multi-electrode negative corona discharge – With applications to electrostatic precipitators

Wettervik

Johnson

Jakobsson

et al. 2015

Journal of Electrostatics

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Electrical and chemical model of negative corona in oxygen at atmospheric pressure

Cited by 21 publications

References 4 publications

The atmospheric-pressure plasma jet: a review and comparison to other plasma sources

The atmospheric-pressure plasma jet: a review and comparison to other plasma sources

Optical diagnostics of the hollow needle to plate electrical discharge in air at atmospheric pressure

A domain decomposition method for three species modeling of multi-electrode negative corona discharge – With applications to electrostatic precipitators

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