Electron Swarm Coefficients in $\hbox{CO}_{2}$–$\hbox{N}_{2}$ and $\hbox{CO}_{2}$–$\hbox{O}_{2}$ Mixtures

Yousfi, Mohammed; Urquijo, J. de; Juarez, Alfredo; Basurto, Eduardo; Hernández-Ávila, J L

doi:10.1109/tps.2009.2017538

Cited by 44 publications

(29 citation statements)

References 34 publications

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“…6. The calculated results of the present study agree with the results of Dincer et al [10], Yousfi et al [11], Haydon and Williams [32], Kondo et al [33], and Juarez et al [34].…”

Section: Resultssupporting

confidence: 92%

“…Nitrogen is one of the important alternatives for the use of greenhouse gases in the gaseous electronics and plasma processing industry due to its inherent advantages, such as sufficient level of insulation strength, nonflammability, non-toxic, and less cost [9,10]. The application of N 2 based plasma and gas-insulated equipment * corresponding author; e-mail: stezcan@gazi.edu.tr technologies can be found in high voltage devices, diffuse discharge switches, exhaust gas pollution control, plasma etching, decontamination and surface treatment industries [11,12]. Some physical and environmental properties of CH 4 and N 2 are shown in Table II [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

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Electron Swarm Parameters in Methane-Nitrogen Mixtures

et al. 2019

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In this paper, binary methane-nitrogen gas mixtures are recommended in order to reduce the industrial use of methane, which stands out among the greenhouse gases. The electron mean energy, drift velocity, ionization and effective ionization coefficients are presented for the binary mixtures with the CH4 content, varying from 20% to 80% in the mixtures. The relevant parameters of pure methane and nitrogen are evaluated for comparison with the data available in literature in order to verify the validity of the computational methodology which is based on solution of the Boltzmann equation. The swarm parameters in the methane-nitrogen mixtures have been evaluated for E/N from 80 Td to 400 Td (1 Td = 1 × 10 −17 V cm 2). The presented data and the results have the potential to be widely used in plasma physics, electrical insulation systems, and space studies.

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“…6. The calculated results of the present study agree with the results of Dincer et al [10], Yousfi et al [11], Haydon and Williams [32], Kondo et al [33], and Juarez et al [34].…”

Section: Resultssupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Electron Swarm Parameters in Methane-Nitrogen Mixtures

et al. 2019

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“…Apparently, for the discrete discharges with 2.5 mm W g , the calculated n e (5.3 × 10 13 cm −3 ) is in the same order with that obtained by the Stark broadening of H β (6.1 × 10 13 cm −3 ). As the ionization rate is fairly low for APGD 36 , it is valid to estimate the electron temperature ( T e ) of APGD by Einstein equation 37–39 . From Fig.…”

Section: Resultsmentioning

confidence: 99%

Generation of a planar direct-current glow discharge in atmospheric pressure air using rod array electrode

Zhang

Jia

et al. 2017

Sci Rep

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Scaling up atmospheric pressure glow discharge to large volume is desirable for low-temperature plasma applications. In this paper, an approach to generate a glow discharge in a planar shape with a fairly large volume is proposed in atmospheric pressure air through utilizing a direct-current excited rod array electrode. The planar discharge with a wide gap originates from three discrete discharges with a narrow gap. Based on electrical method and optical emission spectroscopy, it is found that gap voltage increases, while discharge current remains constant with increasing the gap width. Temperature and electron density of the discharge decrease with increasing the gap width.

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“…The effect of detachment from negative ions is not considered in this paper. In order to validate the calculation and parameters, the calculated reduced effective ionization Townsend coefficients (αη)/N in pure CO 2 and O 2 gases at atmospheric pressure were compared with the literature data [30][31][32][33][34] in Fig. 8 for CO 2 and Fig.…”

Section: B Ionization and Attachment Coefficientsmentioning

confidence: 99%

Study of the synergistic effect in dielectric breakdown property of CO2–O2 mixtures

2017

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Sulfur hexafluoride, SF6, is a common dielectric medium for high-voltage electrical equipment, but because it is a potent greenhouse gas, it is important to find less environmentally harmful alternatives. In this paper we explore the use of CO2 and O2 as one alternative. We studied the synergistic effect in a mixture of CO2 and O2 from both macroscopic and microscopic perspectives. The effect leads to a dielectric strength of the mixture being greater than the linear interpolation of the dielectric strengths of the two isolated gases. We analyzed the critical reduced electric field strength, (E/N)cr, the breakdown gas pressure reduced electric field, E/p, and the breakdown electron temperature, Tb, and their synergistic effect coefficients for various CO2 concentrations and various products of the gas pressure times the gap distance (pd). A gas discharge and breakdown mechanism in a homogenous electric field is known to be controlled by the generation and disappearance of free electrons, which strongly depend on the electron temperature. The results indicate that adding a small amount of O2 to CO2 can effectively improve the value of (E/N)cr and bring a clear synergistic effect. In addition, significantly different variation trends of the synergistic effect in the E/p and Tb of CO2-O2 mixtures at various CO2 concentrations and pd values were also observed.

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Electron Swarm Coefficients in $\hbox{CO}_{2}$–$\hbox{N}_{2}$ and $\hbox{CO}_{2}$–$\hbox{O}_{2}$ Mixtures

Cited by 44 publications

References 34 publications

Electron Swarm Parameters in Methane-Nitrogen Mixtures

Electron Swarm Parameters in Methane-Nitrogen Mixtures

Generation of a planar direct-current glow discharge in atmospheric pressure air using rod array electrode

Study of the synergistic effect in dielectric breakdown property of CO2–O2 mixtures

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