Determination of NO densities in a surface dielectric barrier discharge using optical emission spectroscopy

Offerhaus, Björn; Kogelheide, Friederike; Jalat, D.; Bibinov, Nikita; Schulze, Julian; Stapelmann, Katharina; Awakowicz, Peter

doi:10.1063/1.5094894

Cited by 13 publications

(16 citation statements)

References 42 publications

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“…The geometry used in this simulation is selected as the same in Reference [31], intended for applications in pollutant remediation and gas treatment. This kind of configuration of an S‐DBD has been investigated experimentally for gas flow purification, [ 37 ] value‐added gas measurement, [ 38 ] conversion of volatile organic compounds, [ 39 ] different oxygen admixture, [ 40 ] which described a twin electrode S‐DBD in detail.…”

Section: Simulation Conditions and Numerical Modelmentioning

confidence: 99%

Two‐dimensional particle‐in‐cell/Monte Carlo simulations of streamer formation and propagation in catalyst pores in a surface dielectric barrier discharge

Zuo

Zhou

Zhang

et al. 2022

Plasma Processes & Polymers

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Plasma catalysis is attracting great interest due to its synergistic combination of catalytic and plasma reactor processes. To provide possible controlling methods to this tunability, two‐dimensional particle‐in‐cell/Monte Carlo simulations are applied to investigate the propagation mechanisms of plasma streamers in the porous catalyst in a surface dielectric barrier discharge. Dry air at atmospheric pressure is investigated under a subnanosecond voltage pulse. The results show that the presence of the catalyst pores could enhance the steamer intensity and control the direction of the streamers, yielding highly concentrated reactive species inside catalyst pores. The streamer propagation speed is enhanced by increasing the strength of cathode voltage. These high‐density plasma streamers with controllable direction could benefit many applications in plasma‐enhanced catalysis.

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Section: Simulation Conditions and Numerical Modelmentioning

confidence: 99%

Two‐dimensional particle‐in‐cell/Monte Carlo simulations of streamer formation and propagation in catalyst pores in a surface dielectric barrier discharge

Zuo

Zhou

Zhang

et al. 2022

Plasma Processes & Polymers

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“…The geometry to be simulated is chosen to resemble that of the twin SDBD electrode intended for use in gas treatment applications and was first experimentally presented in [24] and subsequently in [25][26][27]45]. The authors defer the readers to these references for a detailed description of the twin SDBD system under question.…”

Section: Computational Modelmentioning

confidence: 99%

“…The geometry to be simulated is a cross section of the twin SDBD described in [24][25][26][27]45], and shown in fig. 3.…”

Section: Simulated Geometrymentioning

confidence: 99%

“…In recent years, SDBDs have undergone extensive investigation for gas purification for industrial and environmental protection applications [1,2,5]. Absolutely calibrated two wavelength emission spectroscopy has been used in order to characterize a sym-metric SDBD under tailored voltage waveforms [24][25][26]. The waveform under experimental investigation is a damped sine wave with multiple µs period, adjustable peak to peak voltage, and pulsed in the kHz regime.…”

Section: Introductionmentioning

confidence: 99%

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Computational study of simultaneous positive and negative streamer propagation in a twin surface dielectric barrier discharge via 2D PIC simulations

Zhang,

Nguyen-Smith,

Beckfeld

et al. 2021

Preprint

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The propagation mechanisms of plasma streamers have been observed and investigated in a surface dielectric barrier discharge (SDBD) using 2D particle in cell simulations. The investigations are carried out under a simulated air mixture, 80% N 2 and 20% O 2 , at atmospheric pressure, 100 kPa, under both DC conditions and a pulsed DC waveform that represent AC conditions. The simulated geometry is a simplification of the symmetric and fully exposed SDBD resulting in the simultaneous ignition of both positive and negative streamers on either side of the Al 2 O 3 dielectric barrier. In order to determine the interactivity of the two streamers, the propagation behavior for the positive and negative streamers are investigated both independently and simultaneously under identical constant voltage conditions. An additional focus is implored under a fast sub nanosecond rise time square voltage pulse alternating between positive and negative voltage conditions, thus providing insight into the dynamics of the streamers under alternating polarity switches. It is shown that the simultaneous ignition of both streamers, as well as using the pulsed DC conditions, provides both an enhanced discharge and an increased surface coverage. It is also shown that additional streamer branching may occur in a cross section that is difficult to experimentally observe. The enhanced discharge and surface coverage may be beneficial to many applications such as, but are not limited to: air purification, volatile organic compound removal, and plasma enhanced catalysis.

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“…Their further research demonstrated that secondary ionization waves occurred at the edge of the HVE during streamer extension [13]. In addition, the surface charge sensors [14,15], dielectric temperature [16] and optical emission spectroscopy [17] are also utilized to provide insight into the discharge characteristics and discharge process of SDBD.…”

Section: Introductionmentioning

confidence: 99%

Characteristic studies on positive and negative streamers of double-sided pulsed surface dielectric barrier discharge

Jiang¹,

Peng²,

Liu³

et al. 2022

Plasma Sci. Technol.

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The mechanisms of streamer generation and propagation in nanosecond pulsed surface dielectric barrier discharge (SDBD) on both sides have been analyzed and investigated by experiment and numerical simulation. The fully exposed asymmetric SDBD has two discharge processes located on high voltage electrode (HVE) side and ground electrode (GE) side. Discharge images of HVE side and GE side are taken by digital camera under continuous pulse, and ICCD is utilized to diagnose the generation and propagation of streamers in single pulse discharge. In order to understand the physical mechanism of streamer evolution more deeply, we establish a 2D simulation model and analyze it from the aspects of electron density, ion density, reduced electric field and electron impact ionization source term. Numerical simulation shows that the secondary negative streamer on the HVE side is caused by the reverse electric field between HVE and dielectric surface. It also indicates that the secondary positive streamer on the GE side is caused by the negative charge accumulated on the dielectric surface and the falling pulse voltage.

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Determination of NO densities in a surface dielectric barrier discharge using optical emission spectroscopy

Cited by 13 publications

References 42 publications

Two‐dimensional particle‐in‐cell/Monte Carlo simulations of streamer formation and propagation in catalyst pores in a surface dielectric barrier discharge

Two‐dimensional particle‐in‐cell/Monte Carlo simulations of streamer formation and propagation in catalyst pores in a surface dielectric barrier discharge

Computational study of simultaneous positive and negative streamer propagation in a twin surface dielectric barrier discharge via 2D PIC simulations

Characteristic studies on positive and negative streamers of double-sided pulsed surface dielectric barrier discharge

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