Primary and Secondary Streamer Dynamics in Pulsed Positive Corona Discharges

Abahazem, Alyen; Merbahi, Nofel; Ducasse, Olivier; Eichwald, Olivier; Yousfi, Mohammed

doi:10.1109/tps.2008.925708

Cited by 23 publications

(18 citation statements)

References 10 publications

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“…The third phase ➂ corresponds to a relaxation phase for which the electrons of the ionized channel disappear by attachment and recombination processes. If the applied voltage is high enough, then it is probably observed during this phase of relaxation, a plateau (just after the current peak ➁ if the applied voltage is sufficiently up) due to the propagation of a second streamer ➃ (see [8], [22], [28]). Fig.…”

Section: Resultsmentioning

confidence: 99%

Modeling and Identification of Electrical Parameters of Positive DC Point-to-Plane Corona Discharge in Dry Air Using RLS Method

Raouti¹,

Flazi²,

Benyoucef³

2016

IEEE Trans. Plasma Sci.

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In this paper, we present a contribution to the electrical modeling of positive dc point-to-plane corona discharges in dry air (20%O 2 and 80%N 2 ) at atmospheric pressure. The electrical equivalent circuit of the proposed model is regarded as a variable resistor in series with a variable capacitor. The evolutions of the electrical parameters are obtained using a mathematical method of identification based on the recursive least squares algorithm. For the same experimental conditions, the comparison between the measured discharge current and the calculated currents obtained using the identified electrical parameters of the proposed equivalent model shows good agreement, which validates the model as well as the method of identification. To validate this work, results and discussions are given in two different operating points.Index Terms-Corona discharges, dry air, electrical modeling, point-to-plane plasma reactor, recursive least squares algorithm (RLSA).

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Section: Resultsmentioning

confidence: 99%

Modeling and Identification of Electrical Parameters of Positive DC Point-to-Plane Corona Discharge in Dry Air Using RLS Method

Raouti¹,

Flazi²,

Benyoucef³

2016

IEEE Trans. Plasma Sci.

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“…The third phase (3) corresponds to a relaxation phase for which the electrons of the ionized channel disappear by attachment and recombination processes. If the applied voltage is high enough, then it's probably observed during this phase of relaxation, a "plateau" (just after the current peak (2) if the applied voltage is sufficiently up ) due to the propagation of a second streamer (4) (see [9,12,18]). Figure 4 shows a slight voltage drop of several volts at the onset of the discharge current.…”

Section: Resultsmentioning

confidence: 99%

Electrical Modelling of a Positive Point to Plane Corona Discharge at Atmospheric Pressure

Raouti¹,

Flazi²,

Benyoucef³

2014

Contrib. Plasma Phys.

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Key words Positive point to plane corona discharges, electrical modelling, recursive least square (RLS) algorithm.In this paper, we present a contribution to the electrical modelling of corona discharges in point to plane positive dry air at atmospheric pressure. An equivalent circuit model of the discharge is proposed and the evolution of equivalent electrical parameters is obtained using a mathematical method of identification based on the Recursive Least Square (RLS) algorithm. A comparison between the forms of measured discharge current and calculated model currents shows a good agreement and validates the model as well as the method.

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“…The streamer head reaches the plane in a few tens of nanoseconds and creates an ionized filament that links the point and the plane. This primary phase called "primary streamer" [5] [6]. After the primary streamer reaches the cathode, a following streamer develops from the point towards the plane up to the half of the gap between electrodes.…”

Section: Introductionmentioning

confidence: 99%

“…After the primary streamer reaches the cathode, a following streamer develops from the point towards the plane up to the half of the gap between electrodes. That is called a "secondary streamer" [5] [6].…”

Section: Introductionmentioning

confidence: 99%

Electric and Spectroscopic Studies of Pulsed Corona Discharges in Nitrogen at Atmospheric Pressure

Abahazem¹,

Merbahi²,

Guedah³

et al. 2017

JASMI

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This paper is mainly dedicated to the experimental electric and spectroscopic analysis of positive corona discharges in the case of point to plane configuration, generated in nitrogen at atmospheric pressure. The maximum corona current (a few hundreds of mA), the average current (a few μA) and the average propagation velocity (a few 10 7 cm/s) are analyzed with the variation of the applied voltage (a few kV) and the gap distance (not exceeding 16 mm). By using an ICCD camera, the dynamics of the discharge during the propagation of primary and secondary streamers across the gap distance was analyzed. Spectroscopic study is emphasized in a spectral range from 200 nm up to 500 nm, to determine the important excited species present in the gaseous environment such as the second positive and the first negative systems (SPS and FNS respectively). The identification of the quenching NO γ emission bands is also emphasized.

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Primary and Secondary Streamer Dynamics in Pulsed Positive Corona Discharges

Cited by 23 publications

References 10 publications

Modeling and Identification of Electrical Parameters of Positive DC Point-to-Plane Corona Discharge in Dry Air Using RLS Method

Modeling and Identification of Electrical Parameters of Positive DC Point-to-Plane Corona Discharge in Dry Air Using RLS Method

Electrical Modelling of a Positive Point to Plane Corona Discharge at Atmospheric Pressure

Electric and Spectroscopic Studies of Pulsed Corona Discharges in Nitrogen at Atmospheric Pressure

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