Effect of grounded electrode's width on electrical characteristics of nanosecond-pulse surface DBD

Jiang, Hui; Shao, Tao; Zhang, Cheng; Yan, Ping; Niu, Zheng; Zhou, Yixiao

doi:10.1109/ceidp.2013.6747419

Cited by 4 publications

(4 citation statements)

References 15 publications

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“…Therefore, the structure of the grounding electrodes should be altered appropriately. Nevertheless, apart from our previous results on the influence of the width of the grounding electrode on standard linear SDBDs [28][29][30][31], few other related studies have investigated the influence of grounding electrode geometry on SDBD.…”

Section: Introductionmentioning

confidence: 75%

“…A schematic diagram of the experimental setup is presented in figure 2(a). For further details, please refer to our previously published papers [28][29][30][31]. High-frequency and high voltage sinusoidal signals generated by CTP-2000K were utilized in the experiments, whose output voltage is up to 30 kV and frequency varies from 5 kHz and 20 kHz.…”

Section: Experimental Setup and Measurementsmentioning

confidence: 99%

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Influence of segmented grounding electrodes on electrical characteristics in annular surface dielectric barrier discharge

Jiang¹,

Li²,

Xu³

et al. 2021

J. Phys. D: Appl. Phys.

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The primary aims of this paper are to provide a better understanding of surface dielectric barrier discharge based on annular geometry and to investigate the effect of segmented grounding electrodes on their electrical and optical properties. To this end, four grounding electrode conditions are considered: 10-segment, 20-segment, and 30-segment ones as the experimental conditions, and an unsegmented (termed 0-segment) one as the control. A great number of current pulses with lower amplitudes are observed under the segmented conditions compared to the 0-segment condition. In the former case, the current pulse number and the peak value are observed to be inversely and directly proportional to the number of segments, respectively. However, the average currents corresponding to the various segmentations are observed to be nearly identical, and each of them is lower than that under the 0-segment condition. Secondly, the discharge uniformity under the 30-segment condition is observed to be better than under the 0-segment condition, because even though the discharge is usually concentrated at covered regions, it spreads spanwise to the adjacent uncovered regions as the number of segments is increased. Consequently, the airflow induced by spanwise-spread plasma extends the effective range of plasma action. Moreover, the Lissajous figures corresponding to the four conditions are ascertained to be approximately parallelogram-shaped. However, the slopes of the discharge phases are dependent on the voltage, as the variations of equivalent capacitance in dark and discharge phases are distinct. A higher amount of power is consumed under the 30-segment condition than under the 0-segment condition, although the maximum transported charge is much lower in the former case. Finally, in the quasi-sinusoidal external electric field distribution induced by the segmented grounding electrode, a slightly lower-than-average electric fields avoid the creation of obvious separated channels, while a moderate peak-to-peak difference of electric field improves the electric field distortions caused by existing micro-discharges. This phenomenon serves as a satisfactory explanation of the differences between the discharge channel developments and the plasma distributions under different conditions. Based on the obtained results, we conclude that the performance of discharge plasma can be improved by arranging the electrodes optimally.

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Section: Introductionmentioning

confidence: 75%

Section: Experimental Setup and Measurementsmentioning

confidence: 99%

Influence of segmented grounding electrodes on electrical characteristics in annular surface dielectric barrier discharge

Jiang¹,

Li²,

Xu³

et al. 2021

J. Phys. D: Appl. Phys.

Self Cite

View full text Add to dashboard Cite

show abstract

“…In [24], the authors studied experimentally the Q-V Lissajous Figures in NS-DBD, and the results show that the transported charge and energy per pulse are proportional to the applied voltage amplitude, while the transported charges proportionally decrease as the electrode gap increases. In [25], the authors investigated the effect of grounded electrode width on electrical characteristics of NS-DBD and the results show that the grounded electrode width has no obvious influence on the plasma light intensity.…”

Section: Introductionmentioning

confidence: 99%

Investigation of nanosecond-pulsed dielectric barrier discharge actuators with powered electrodes of different exposures

Cai

Lian

2017

Plasma Sci. Technol.

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Nanosecond-pulsed dielectric barrier discharge actuators with powered electrodes of different exposures were investigated numerically by using a newly proposed plasma kinetic model. The governing equations include the coupled continuity plasma discharge equation, drift-diffusion equation, electron energy equation, Poisson's equation, and the Navier-Stokes equations. Powered electrodes of three different exposures were simulated to understand the effect of surface exposure on plasma discharge and surrounding flow field. Our study showed that the fully exposed powered electrode resulted in earlier reduced electric field breakdown and more intensive discharge characteristics than partially exposed and rounded-exposed ones. Our study also showed that the reduced electric field and heat release concentrated near the right upper tip of the powered electrode. The fully exposed electrode also led to stronger shock wave, higher heating temperature, and larger heated area.

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“…Reactor types classified as other include a photo-triggered discharge reactor used by Faider et al[63] and hybrid surface/packed-bed reactors used by Jiang et al[52][53][54]57].…”

mentioning

confidence: 99%

Non-thermal plasma treatment of volatile organic compounds: A predictive model based on experimental data analysis

Nobrega

Rohani

Fulcheri

2019

Chemical Engineering Journal

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Non-thermal plasma is an emerging alternative for removing VOC from polluted air streams. This technique has been studied in laboratory for more than twenty years and experimental data is abundant. However, mostly qualitative information has been obtained from that data and no model has been developed for predicting the treatment performance from a given set of parameters. In this paper, we establish such a model, based on experimental data extracted from 69 scientific publications. This model, obtained through a linear regression, uses both quantitative and qualitative variables to predict the energy yield of the treatment. In 80 % of the data points, the measured energy yield lies between 0.6 and 1.75 times the predicted value. We also used the model to evaluate quantitatively the impact of several parameters of the treatment, such as the initial concentration, the presence of a catalyst or the reactor type. Being so, the model presented here is an invaluable tool for both scientists and engineers interested in the treatment of VOC by non-thermal plasma.

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Effect of grounded electrode's width on electrical characteristics of nanosecond-pulse surface DBD

Cited by 4 publications

References 15 publications

Influence of segmented grounding electrodes on electrical characteristics in annular surface dielectric barrier discharge

Influence of segmented grounding electrodes on electrical characteristics in annular surface dielectric barrier discharge

Investigation of nanosecond-pulsed dielectric barrier discharge actuators with powered electrodes of different exposures

Non-thermal plasma treatment of volatile organic compounds: A predictive model based on experimental data analysis

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