Effect of Dielectric Surface Morphology on Dielectric Barrier Discharge Mode in Air at Atmospheric Pressure

Ran, Junxia; Zhang, Xuexue; Ge, Dayong; Li, Xiaowei; Li, Xuechen

doi:10.1109/tps.2020.3043580

Cited by 17 publications

(20 citation statements)

References 17 publications

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“…This method is believed to be reliable if both the excited states are dominated by the initiation process of the electron‐impact process. [ 29 ] In many works, the spectral band of N 2 (C–B) at 394.3 nm and the spectral band of N 2 + at 391.4 nm is used. [ 29 ] The empirical formula of the intensity ratio ( R 391/394 ) and E / N is presented as the equation:

${R}_{391/394}=46\text{exp}\left[-89{\left(\frac{E}{N}\right)}^{-0.5}\right]\text{.

…”

Section: Experiments Resultsmentioning

confidence: 99%

A nonequal gap distance dielectric barrier discharge: Between spiral‐shaped and cylinder‐shaped electrodes

Jin

Zhao

Nie

et al. 2022

Plasma Processes & Polymers

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${R}_{391/394}=46\text{exp}\left[-89{\left(\frac{E}{N}\right)}^{-0.5}\right]\text{.

…”

Section: Experiments Resultsmentioning

confidence: 99%

A nonequal gap distance dielectric barrier discharge: Between spiral‐shaped and cylinder‐shaped electrodes

Jin

Zhao

Nie

et al. 2022

Plasma Processes & Polymers

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“…In the next, the ratio of the intensities of the second positive system of N 2 and the first negative system of N 2 + is used to evaluate the electric field [28,29]. For N 2 , emission at 394 nm is selected, whereas for N 2 + , emission at 391 nm is selected [30][31][32][33][34]. Thus, we use the optical emission intensity ratio R at 394 nm to evaluate the electric field.…”

Section: Numbermentioning

confidence: 99%

“…+ is used to evaluate the electric field [28,29]. For N 2 , emission at 394 nm is selected, whereas for N 2 + , emission at 391 nm is selected [30][31][32][33][34]. Thus, we use the optical emission intensity ratio R 391/394 of N 2 + at 391 nm and N 2 at 394 nm to evaluate the electric field.…”

Section: T a B L E 1 Total Movement Charges In Each Layermentioning

confidence: 99%

“…Thus, we use the optical emission intensity ratio R 391/394 of N 2 + at 391 nm and N 2 at 394 nm to evaluate the electric field. In Gangwar et al [28] and Ran et al [30], non-self-sustained discharge was excited in a parallel-plane gap using the radiation of a pulsed laser. Results of theoretical calculations of that ratio as a function of reduced field strength E/N, where E is the field strength and N is the gas number density, are presented by the known electric field.…”

Section: T a B L E 1 Total Movement Charges In Each Layermentioning

confidence: 99%

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A non‐equal gap distance dielectric barrier discharge: Between cone‐shape and cylinder‐shape electrodes

Jin

Xian

et al. 2021

High Voltage

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A non-equal gap distance dielectric barrier discharge (DBD) between cone-shape and a cylinder-shaped electrodes is reported. The DBD is driven by a nanosecond voltage pulse. When the pulse frequency is 500 Hz or lower, ladder-shape plasma with multiple plasma layers is generated within the gap, with a distance increasing from 1 to 7 mm. According to high-speed photographs of the plasma captured by an intensified chargecoupled camera detector camera, the ladder-shaped plasma is formed owing to propagation of ring-shaped plasma from the region of the short-gap distance to the region of long-gap distance with regular variations in its propagation speed. The propagation speed drops to zero and lasts for about 20-30 ns at the region of each plasma layer, which results in bright plasma layers. The electric field of the plasma layer at the region of the different gap distance is evaluated according to the optical emission intensity ratio R 391/ 394 of N 2 + at 391 nm and N 2 at 394 nm. The obtained electric field drops from 8.1 to 6.4 kV/mm when the plasma is propagated from regions of gap distance of 2-5 mm. When the pulse frequency is increased to 1 kHz or higher, the discharge changes into a filamentary mode and the multiple-layer plasma disappears.This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

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“…The intensity of streamer discharge is very high, and it can convert oxygen into zones, which is also recognized as the working principle of the DBD reactor. Corona discharge and glow discharge are usually used for negative discharge [11][12][13][14][15][16]. Their discharge intensity is lower than that of a streamer.…”

Section: Introductionmentioning

confidence: 99%

A Novel Dielectric Barrier Discharge (DBD) Reactor with Streamer and Glow Corona Discharge for Improved Ozone Generation at Atmospheric Pressure

Song

Zhang

2021

Micromachines

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Discharge mode is an important parameter for ozone synthesis by dielectric barrier discharge (DBD). Currently, it is still challenging to stably generate glow discharge with oxygen at atmospheric pressure. In this paper, a DBD reactor with a layer of silver placed between the electrode and the dielectric layer (SL-DBD) was developed. Experimental results show that both streamer and glow corona discharge were stably generated under sinusoidal excitation with a 0.5 mm discharge gap in a parallel-plate DBD, due to the increased electric field strength in the discharge gap by the silver layer. It was also found that, in the SL-DBD reactor, glow corona discharge enhances the discharge strength by 50 times. The spectral peak of O at 777 nm in SL-DBD is increased to 28,800, compared with 18,389 in a reactor with a streamer only. The SL-DBD reactor produces ozone with a concentration of as high as 150 g/m3 and shows good stability in an 8 h durability test.

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Effect of Dielectric Surface Morphology on Dielectric Barrier Discharge Mode in Air at Atmospheric Pressure

Cited by 17 publications

References 17 publications

A nonequal gap distance dielectric barrier discharge: Between spiral‐shaped and cylinder‐shaped electrodes

A nonequal gap distance dielectric barrier discharge: Between spiral‐shaped and cylinder‐shaped electrodes

A non‐equal gap distance dielectric barrier discharge: Between cone‐shape and cylinder‐shape electrodes

A Novel Dielectric Barrier Discharge (DBD) Reactor with Streamer and Glow Corona Discharge for Improved Ozone Generation at Atmospheric Pressure

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