Electrical and optical characterization of multi-hollow surface dielectric barrier discharge in configuration with the air-exposed electrode

Cimerman, Richard; Maťaš, Emanuel; Sárený, Matej; Hensel, Karol

doi:10.1063/5.0101496

Cited by 6 publications

(3 citation statements)

References 78 publications

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“…Therefore, as the electrode temperature increases (corresponding to an increase in the applied power), the intensity of the discharge further increases, and the number of discharge pulses also increases, whereas the peak current does not necessarily increase. Similar observations were reported in [37,38]. The product of the number of discharge pulses and Q increases, which corresponds to the increase in the applied power in the next content.…”

Section: Discharge Characteristicssupporting

confidence: 86%

Effects of the ground-electrode temperature on electrical and optical characteristics of a coaxial dielectric barrier discharge in atmospheric pressure air

Liu,

Shi,

Wang

et al. 2023

Phys. Scr.

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The applied power and electron energy are believed to play important roles in plasma applications, which can be significantly altered by controlling the ground-electrode temperature in a coaxial dielectric barrier discharge (DBD). The effects of the ground-electrode temperature on the electrical and optical characteristics of the DBD were investigated in atmospheric pressure air. The results show that the breakdown voltage decreases, and the number of discharge pulses, the transferred charges, and the applied power increase with the electrode temperature, while the peak current tends to decrease when the electrode temperature is below −35 °C and above 25 °C, respectively. When the electrode temperature remains constant, the breakdown voltage increases and the applied power decreases with the gap distance. The applied power increases with the applied voltage. The dielectric capacitance, the total capacitance, and the gap capacitance at the electrode temperature below −35 °C are generally higher than those at the electrode temperature above 25 °C. Moreover, they change in the same trend when the electrode temperature and the applied voltage increase. The dielectric and total capacitances increase while the gap capacitance decreases. The relative intensities of the spectral lines increase with the electrode temperature. The electron, vibrational, and rotational temperatures increase with the electrode temperature above 25 °C. However, the electron and vibrational temperatures increase and decrease with the electrode temperature below −35 °C. The secondary emission coefficients and electron energy distributions with the electrode temperature were discussed.

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Section: Discharge Characteristicssupporting

confidence: 86%

Effects of the ground-electrode temperature on electrical and optical characteristics of a coaxial dielectric barrier discharge in atmospheric pressure air

Liu,

Shi,

Wang

et al. 2023

Phys. Scr.

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“…The software uses a builtin comprehensive nominal residual method for iteration and convergence of the model and validation with experimental results. The degradation rate of gasifier product gas highlights a strong relationship between the decomposition rate with the electrode tip and the electric field intensity in rotational intensified plasma reactors [131,132].…”

Section: Development and Simulation Of A Fluid Model For Recombinatio...mentioning

confidence: 99%

Pioneering the Future: A Trailblazing Review of the Fusion of Computational Fluid Dynamics and Machine Learning Revolutionizing Plasma Catalysis and Non-Thermal Plasma Reactor Design

Arshad,

Ahmad,

Mularski

et al. 2024

Catalysts

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The advancement of plasma technology is intricately linked with the utilization of computational fluid dynamics (CFD) models, which play a pivotal role in the design and optimization of industrial-scale plasma reactors. This comprehensive compilation encapsulates the evolving landscape of plasma reactor design, encompassing fluid dynamics, chemical kinetics, heat transfer, and radiation energy. By employing diverse tools such as FLUENT, Python, MATLAB, and Abaqus, CFD techniques unravel the complexities of turbulence, multiphase flow, and species transport. The spectrum of plasma behavior equations, including ion and electron densities, electric fields, and recombination reactions, is presented in a holistic manner. The modeling of non-thermal plasma reactors, underpinned by precise mathematical formulations and computational strategies, is further empowered by the integration of machine learning algorithms for predictive modeling and optimization. From biomass gasification to intricate chemical reactions, this work underscores the versatile potential of plasma hybrid modeling in reshaping various industrial processes. Within the sphere of plasma catalysis, modeling and simulation methodologies have paved the way for transformative progress. Encompassing reactor configurations, kinetic pathways, hydrogen production, waste valorization, and beyond, this compilation offers a panoramic view of the multifaceted dimensions of plasma catalysis. Microkinetic modeling and catalyst design emerge as focal points for optimizing CO2 conversion, while the intricate interplay between plasma and catalysts illuminates insights into ammonia synthesis, methane reforming, and hydrocarbon conversion. Leveraging neural networks and advanced modeling techniques enables predictive prowess in the optimization of plasma-catalytic processes. The integration of plasma and catalysts for diverse applications, from waste valorization to syngas production and direct CO2/CH4 conversion, exemplifies the wide-reaching potential of plasma catalysis in sustainable practices. Ultimately, this anthology underscores the transformative influence of modeling and simulation in shaping the forefront of plasma-catalytic processes, fostering innovation and sustainable applications.

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“…In each case, the voltage was a sine wave with an 18.5 kV peak-to-peak voltage and a frequency of 1 kHz. In general, the current-voltage waveforms are typical of the SDBD actuators used for flow control [52][53][54][55]. For all three cases, the current waveforms consisted of two batches of pulses appearing in each cycle: a batch of positive pulses occurring at the positive-going voltage half cycle, and a batch of negative pulses at the negative-going half cycle.…”

Section: Voltage and Discharge Current Measurementsmentioning

confidence: 99%

Ozone Generation by Surface Dielectric Barrier Discharge

et al. 2023

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Surface dielectric barrier discharge (SDBD) is used in a variety of different applications; however, the ozone generated in the discharge can be toxic to people in the vicinity. In this paper, we study the SDBD (using generators with smooth-edge, serrated and thin-wire high-voltage electrodes) in terms of ozone generation. The electrical measurements and the time-resolved plasma imaging revealed differences in the discharge current, dissipated power and plasma morphology for the different types of SDBD generators and showed significant suppression of the streamer formation from the thin-wire electrode. We determined the amount of ozone produced by each generator and found that despite the observed differences in discharge between the generators, the ozone production yield and the maximum volumetric concentration of ozone for all three generators is a linear function of only one parameter—the discharge active power. We also found that the ozone production efficiency of 9.66 g/kWh is constant for all three generators. Our results show that SDBD generators can be safely used in the enclosed space if the SDBD discharge operates with relatively low active power (the SDBD generator working with the active power of 1.7 W did not exceed the ozone concentration of 0.1 ppm in the 60 m3 room).

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Electrical and optical characterization of multi-hollow surface dielectric barrier discharge in configuration with the air-exposed electrode

Cited by 6 publications

References 78 publications

Effects of the ground-electrode temperature on electrical and optical characteristics of a coaxial dielectric barrier discharge in atmospheric pressure air

Effects of the ground-electrode temperature on electrical and optical characteristics of a coaxial dielectric barrier discharge in atmospheric pressure air

Pioneering the Future: A Trailblazing Review of the Fusion of Computational Fluid Dynamics and Machine Learning Revolutionizing Plasma Catalysis and Non-Thermal Plasma Reactor Design

Ozone Generation by Surface Dielectric Barrier Discharge

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