Characteristics of Radio Frequency Dielectric Barrier Discharge Using Argon Doped with Nitrogen at Atmospheric Pressure

Li, Sen; Sun, Jiazhen; Sun, Rui; Pan, J. J.; Wang, Lin; Chen, Chen; Chen, Qiang; Liu, Zhongwei

doi:10.3390/ma15217647

Cited by 4 publications

(4 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This additional simulation was carried out specifically to supplement the data related to electron transport parameters in the higher E/N ranges. The choice of voltage configuration was motivated by extensive research related to the operation of DBD at radio frequencies (RF) [32][33][34][35][36][37].…”

Section: Initial and Boundary Conditionsmentioning

confidence: 99%

Simulation of 1D atmospheric pressure dielectric barrier discharge in argon

Crispim,

da Silva,

Amorim

et al. 2024

Phys. Scr.

View full text Add to dashboard Cite

This work aims at modelling an atmospheric-pressure homogeneousbarrier discharge in argon, using a time-dependent 1D fluid model coupled to theelectric field and plasmo-chemical kinetic equations. The model is chosen to mimic adischarge when a sinusoidal 1kV voltage at 10MHz is applied to the terminals. Energy and mass transfer are considered for a macroscopic fluid representation, while energy transfer in molecular collisions and chemical reactions is treated at the microscopiclevel. The macroscopic model is represented by a set of uncoupled partial differential equations. Microscopic effects are studied within a discrete model for electronic and molecular collisions in the frame of ZDPlasKin, a plasma modelling numerical tool. The BOLSIG+ solver is employed in solving the electronic Boltzmann equation. An operator splitting technique is used to separate microscopic and macroscopic models. The spatial and temporal evolution of such species and electron transport parameters are presented and discussed.

show abstract

Section: Initial and Boundary Conditionsmentioning

confidence: 99%

Simulation of 1D atmospheric pressure dielectric barrier discharge in argon

Crispim,

da Silva,

Amorim

et al. 2024

Phys. Scr.

View full text Add to dashboard Cite

show abstract

“…The filaments were not extinguished during the individual half cycles because the fast polarity switching prevented the charge build-ups on dielectrics. Hence, the current waveforms do not have sharp peaks in the RF PSJ or the standard RF-driven filamentary DBDs [48][49][50]. Admixing oxygen or nitrogen gas into the Ar PSJ led to a decrease in discharge current amplitude and a higher distortion of the applied sinusoidal waveform (figure 5).…”

Section: Waveforms and Power Dissipated In Psjmentioning

confidence: 99%

Electric field and higher harmonics of RF plasma slit jet measured by antennas and VI probes

Polášková,

Drexler,

Klíma

et al. 2024

Plasma Sources Sci. Technol.

View full text Add to dashboard Cite

The cold atmospheric plasma jets change their character when interacting with the different surfaces. Since such interaction is the primary area of plasma jet applications, it is essential to monitor the process. The non-linearity of the RF plasma slit jet (PSJ) was analyzed using the VI probes and a novel method, the non- intrusive antenna measurements. Regardless of the experimental setup and gas mixture (Ar, Ar/O2 , Ar/N2), the PSJ frequency spectrum consisted of the following main features: dominant fundamental frequency peak, relatively strong odd harmonics, and significantly weaker even harmonics. The lowest degree of non-linearity was recorded for the Ar PSJ ignited against a grounded target. Admixing a molecular gas increased the discharge non-linearity as observed by even harmonics intensities. It was attributed to the enhancement of secondary electron emission from the dielectric surfaces. In addition to the non-linearity analysis, the antenna spectra were for the first time used to determine the semi-quantative values of the PSJ-radiated electric field. The electric fields decreased by a factor of 2 after the admixing of nitrogen and oxygen molecular gases. Out of the studied targets, the highest electric fields were observed when plasma impinged on the grounded targets, followed by the floating target (2x lower) and the PSJ ignited in the open space configuration (4x lower than in the grounded target configuration).

show abstract

“…Simply put, the RF system generates plasma without electrodes, avoiding contamination by metallic vapor (Winchester & Payling, 2004). Also, RF provides other advantages, including high production efficiency and low cost for industrial applications compared to other plasma systems (Li et al., 2022a).…”

Section: Technology and Mechanisms Of Hv‐cap In Protein Modificationsmentioning

confidence: 99%

Cold atmospheric plasma‐induced protein modification: Novel nonthermal processing technology to improve protein quality, functionality, and allergenicity reduction

Olatunde

Hewage

Dissanayake

et al. 2023

Comp Rev Food Sci Food Safe

View full text Add to dashboard Cite

With the constant increase in protein demand globally, it is expedient to develop a strategy to effectively utilize protein, particularly those extracted from plant origin, which has been associated with low digestibility, poor techno-functional properties, and inherent allergenicity. Several thermal modification approaches have been developed to overcome these limitations and showed excellent results.Nevertheless, the excessive unfolding of the protein, aggregation of unfolded proteins, and irregular protein crosslinking have limited its application. Additionally, the increased consumer demand for natural products with no chemical additives has created a bottleneck for chemical-induced protein modification. Therefore, researchers are now directed toward other nonthermal technologies, including high-voltage cold plasma, ultrasound, high-pressure protein, etc., for protein modification. The techno-functional properties, allergenicity, and protein digestibility are greatly influenced by the applied treatment and its process parameters. Nevertheless, the application of these technologies, particularly high-voltage cold plasma, is still in its primary stage. Furthermore, the protein modification mechanism induced by high-voltage cold plasma has not been fully explained. Thus, this review meets the necessity to assemble the recent information on the process parameters and conditions for modifying proteins by high-voltage cold plasma and its impact on protein techno-functional properties, digestibility, and allergenicity.

show abstract

Characteristics of Radio Frequency Dielectric Barrier Discharge Using Argon Doped with Nitrogen at Atmospheric Pressure

Cited by 4 publications

References 34 publications

Simulation of 1D atmospheric pressure dielectric barrier discharge in argon

Simulation of 1D atmospheric pressure dielectric barrier discharge in argon

Electric field and higher harmonics of RF plasma slit jet measured by antennas and VI probes

Cold atmospheric plasma‐induced protein modification: Novel nonthermal processing technology to improve protein quality, functionality, and allergenicity reduction

Contact Info

Product

Resources

About