Numerical Investigation of a Parallel-Plate Atmospheric-Pressure Nitrogen/Ammonia Dielectric Barrier Discharge

Li, F. L.; Lin, Kun-Mo; Yang, Yi; Hung, Chin‐Te; Wu, Jong‐Shinn; Yu, Jen Perng

doi:10.1007/s11090-012-9368-x

Cited by 3 publications

(4 citation statements)

References 37 publications

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“…The results show that the number density of electrons grows rapidly from the cathode to the anode, ions outnumber electrons, except at the anode, and the electric field increases slightly from the anode to the cathode for both discharges. These are typical features of a Townsend-like discharge [4,13,20,21]. The features show that N + 2 and N + 4 are the two most dominant ionic species during the breakdown period in the N 2 /O 2 discharge, while NH + 4 becomes the most dominant ion through the mechanisms as explained in figure 5(a).…”

Section: Distributions Of the Species Number Densitiesmentioning

confidence: 80%

“…These factors are important to gain a better understanding of the complex plasma chemistry and the interaction of light emission with the polymer surfaces that are treated. Li et al [4] performed detailed one-dimensional (1D) fluid modeling of N 2 /NH 3 AP-DBDs without including a detailed mechanism of light emissions (NO-γ , NO-β and N 2 -SPS). The authors combined all of the excited/metastable nitrogen species into lumped excited nitrogen, and oxygen impurity was not considered in the modeling.…”

Section: Introductionmentioning

confidence: 99%

“…Nitrogen/ammonia atmospheric-pressure dielectric barrier discharges (AP-DBDs) have recently been used in enhancing the biocompatibility of PLA (polylactide) surfaces [1,2] or LDPE (low-density polyethylene) [3]. Experiments [1][2][3] and numerical investigations [4] have been performed to understand the discharge physics and chemistry to some extent. However, the mechanisms of important light emission and the effects of oxygen impurities were not explored in these studies.…”

Section: Introductionmentioning

confidence: 99%

“…Li et al [4] performed detailed one-dimensional (1D) fluid modeling of N 2 /NH 3 AP-DBDs without including a detailed mechanism of light emissions (NO-γ , NO-β and N 2 -SPS). The authors combined all of the excited/metastable nitrogen species into lumped excited nitrogen, and oxygen impurity was not considered in the modeling.…”

Section: Introductionmentioning

confidence: 99%

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Numerical and experimental investigation of light emissions of a planar nitrogen atmospheric-pressure dielectric barrier discharge due to addition of ammonia considering oxygen impurity

Hung

Lin

et al. 2013

Plasma Sources Sci. Technol.

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In this paper, the mechanisms of light emissions, including NO-γ , NO-β and N 2-SPS, produced in a N 2 /NH 3 atmospheric-pressure dielectric barrier discharge considering realistic oxygen impurity (30 ppm) are investigated numerically and experimentally. Self-consistent, one-dimensional fluid modeling is used to numerically simulate the discharge process with 48 species and 235 reaction channels. An optical emission spectrometer (OES) is used to measure the relative intensities of the light emission. The simulations of the light emission intensities for the above-mentioned OES lines generally reproduce the trends observed in the experiments caused by changes in the NH 3 concentration. All of the predicted intensities of NO-γ , NO-β and N 2-SPS decrease with increasing amount of NH 3 caused by various reaction mechanisms. The former is due to the loss of N 2 (A) and NO(A) by the reaction of NH 3 with N 2 (A) and NO(A), respectively. The decrease in NO-β is due to the depletion of N and O because of NH 3 , and the decrease in N 2-SPS is due to electron attachment to NH 3 and a weaker metastable-metastable associative ionization of N 2. All of the simulated results demonstrate that the discharges are typically Townsend-like because the ions outnumber the electrons and the electric field across the gap is distorted only slightly by the charged particles during the breakdown. Finally, a reduced chemical kinetics model for a planar atmospheric-pressure N 2 /O 2 /NH 3 dielectric barrier discharge is proposed and validated by benchmarking against the above complete chemical kinetics. This results in a reduced chemical kinetics consisting of 33 species and 87 reactions with a very limited loss of accuracy of discharge properties, while it is 2.1 times faster in computational time as compared with the complete version.

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Section: Distributions Of the Species Number Densitiesmentioning

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Numerical and experimental investigation of light emissions of a planar nitrogen atmospheric-pressure dielectric barrier discharge due to addition of ammonia considering oxygen impurity

Hung

Lin

et al. 2013

Plasma Sources Sci. Technol.

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Deep learning-assisted pulsed discharge plasma catalysis modeling

Pan

Liu

Zhang

et al. 2023

Energy Conversion and Management

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The simulation of streamer dynamics in the air gap

Zhang

Hui²,

Meng

et al. 2011

2011 Annual Report Conference on Electrical Insulation and Dielectric Phenomena

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The air gap breakdown at high altitude is attracting more and more attention from investigators. As the altitude increases, air pressure and humidity varies, discharge in air gap becomes more complex. The streamer propagation is a significant physical process during air gap breakdown. Research on streamer characteristic is helpful for understanding the mechanism of air gap breakdown. In the paper, a simulation model of streamer dynamics was carried out using fluid model. The numerical results of streamer dynamics were compared with the experiment results which had been published in former paper under different air pressure and humidity. Good agreement between test and numerical computation at stability propagation field is obtained, which demonstrates the validity of the simulation model of streamer dynamics. Then, the simulation model was adopted to study the influence of background electric field, duration and amplitude of voltage pulse on streamer propagation. With the rising of duration and amplitude of voltage pulse, the intrinsic stability field for streamer propagation and corresponding propagation velocity decrease. Index Terms-air gap breakdown; streamer propagation; 3-electrode system; duration and amplitude of voltage pulse; background electric field

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Numerical Investigation of a Parallel-Plate Atmospheric-Pressure Nitrogen/Ammonia Dielectric Barrier Discharge

Cited by 3 publications

References 37 publications

Numerical and experimental investigation of light emissions of a planar nitrogen atmospheric-pressure dielectric barrier discharge due to addition of ammonia considering oxygen impurity

Numerical and experimental investigation of light emissions of a planar nitrogen atmospheric-pressure dielectric barrier discharge due to addition of ammonia considering oxygen impurity

Deep learning-assisted pulsed discharge plasma catalysis modeling

The simulation of streamer dynamics in the air gap

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