Modeling the Parameters of an Atmospheric Pressure Dielectric Barrier Discharge Controlled by the Shape of the Applied Voltage

Сайфутдинова, А. А.; Saifutdinov, A. I.; Gainullina, Sabina V.; Тимеркаев, Б. А.

doi:10.1109/tps.2022.3152593

Cited by 27 publications

(7 citation statements)

References 35 publications

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“…In all experiments, the gap between the interelectrode distance was maintained at approximately 15 mm, and the samples were treated for 30 s, 60 s and 120 s under the condition of air as the gas medium, a voltage intensity of 40 kV and a frequency of 20 kHz. Although the waveform of the applied voltage is not shown here, it should be noted that the waveform is a factor that can affect the characteristics of the processed products [ 22 ].…”

Section: Methodsmentioning

confidence: 99%

Cold Plasma Controls Nitrite Hazards by Modulating Microbial Communities in Pickled Radish

Wei,

Yang,

Yang

et al. 2023

Foods

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The hazard of nitrite caused by microorganisms is the main food safety problem in the pickle production. To seek a method to control the nitrite hazards of pickles by regulating microbial community without additional substances, we focused on cold plasma because Gram-negative and Gram-positive bacteria have different degrees of sensitivity to the sterilization of cold plasma. Using radish pickles as the experimental object, based on colony counting, dynamic monitoring of pH and nitrite, qPCR and high-throughput sequencing, it was found that when the raw material was treated with dielectric barrier discharge (DBD) cold plasma at 40 kV for 60 s, Gram-negative bacteria with the potential to produce nitrite were preferentially sterilized. Meanwhile, Gram-positive bacteria dominated by the lactic acid bacteria were retained to accelerate the acid production rate, initiate the self-degradation of nitrite in advance and significantly reduce the peak value and accumulation of nitrite during the fermentation process of pickled radish. This study preliminarily verified that DBD cold plasma can inhibit the nitrite generation and accelerate the self-degradation of nitrite by regulating the structure and abundance of microbial community in radish pickles, which provides an important reference for the control of nitrite hazards in the fermentation process of pickles without additives.

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Section: Methodsmentioning

confidence: 99%

Cold Plasma Controls Nitrite Hazards by Modulating Microbial Communities in Pickled Radish

Wei,

Yang,

Yang

et al. 2023

Foods

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“…The gas temperature and air density are considered constant. The gas temperature is set to 600 K (Saifutdinova et al , 2022). The continuity and momentum equations of electrons and ions are solved with the drift and diffusion approximation.…”

Section: One-dimensional Plasma Dischargementioning

confidence: 99%

A plasma energy deposition based model for power cable bellows discharge

Wang

Yang

et al. 2023

COMPEL

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Purpose This paper aims at building a discharge model for the power cable bellows based on plasma energy deposition and analyzing the discharge ablation problem. Design/methodology/approach Aiming at the multiphysical mechanism of the discharge ablation process, a multiphysical field model based on plasma energy deposition is established to analyze the discharge characteristics of the power cable bellows. The electrostatic field, plasma characteristics, energy deposition and temperature field are analyzed. The discharge experiment is also carried out for result validation. Findings The physical mechanism of the bellows ablative effect caused by partial discharge is studied. The results show that the electric field intensity between the aluminum sheath and the buffer layer easily exceeds the pressure resistance value of air breakdown. On the plasma surface of the buffer layer, the electron density is about 4 × 1,019/m3, and the average temperature of electrons is about 3.5 eV. The energy deposition analysis using the Monte Carlo method shows that the electron range in the plasma is very short. The release will complete within 10 nm, and it only takes 0.1 s to increase the maximum temperature of the buffer layer to more than 1,000 K, thus causing various thermal effects. Originality/value Its physical process involves the distortion of electric field, formation of plasma, energy deposition of electrons, and abrupt change of temperature field.

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“…The IPS process uses high temperature (~10,000 • C) and high energy density of the generated plasma to rapidly heat and melt or gasify the feedstock powders to eliminate micro-defects and impurities. Recently, researchers have established advanced models to study the inductively coupled plasma torch's electromagnetic field, temperature field, and fluid field, which helps us better understand the spheroidization process [24,25]. The molten particles form spherical droplets under the effect of surface tension in the heating process and rapidly solidify to form spherical powders.…”

Section: Introductionmentioning

confidence: 99%

Effects of Induction Plasma Spheroidization on Properties of Yttria-Stabilized Zirconia Powders for Thermal Barrier Coating Applications

Peng,

Yu,

Shi

et al. 2024

Materials

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In this study, the induction plasma spheroidization (IPS) technique was adopted to improve the microstructure and properties of the traditional agglomerated ZrO2-7wt%Y2O3 (YSZ) powders used in thermal barrier coating (TBC) applications. Compared with agglomerated YSZ powders, IPS-treated powder has a more desirable microstructure, and the overall performance of the spray powders for TBC preparation is significantly improved. Specifically, IPS-treated powder has a dense, solid, defect-free, and chemically uniform microstructure, and its apparent density, flowability, and powder strength are significantly improved, which is believed to substantially enhance the coating performance when prepared with this IPS-treated powder.

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Modeling the Parameters of an Atmospheric Pressure Dielectric Barrier Discharge Controlled by the Shape of the Applied Voltage

Cited by 27 publications

References 35 publications

Cold Plasma Controls Nitrite Hazards by Modulating Microbial Communities in Pickled Radish

Cold Plasma Controls Nitrite Hazards by Modulating Microbial Communities in Pickled Radish

A plasma energy deposition based model for power cable bellows discharge

Effects of Induction Plasma Spheroidization on Properties of Yttria-Stabilized Zirconia Powders for Thermal Barrier Coating Applications

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