A two-temperature kinetic model of SF6plasma

Girard, R.; Belhaouari, J B; Gonzalez, Jean‐Jacques; Gleizes, Alain

doi:10.1088/0022-3727/32/22/311

Cited by 45 publications

(28 citation statements)

References 25 publications

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“…highly electro-negative and where negative ions are created at significant amounts. [93][94][95] Nozaki et al 43 of methane in dielectric barrier discharges (DBD) in a packed bed reactor, using a simplified version of the kinetic scheme of Tachibana et al 52 The latter was initially developed for chemical vapour deposition and included 18 positive ions ranging from to . For methane plasmas, it is usually common in…”

Section: Ionsmentioning

confidence: 99%

Plasma-enhanced catalysis for the upgrading of methane: a review of modelling and simulation methods

2020

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Section: Ionsmentioning

confidence: 99%

Plasma-enhanced catalysis for the upgrading of methane: a review of modelling and simulation methods

2020

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“…, NF, NS and 80 reactions, with 76 to be reverse ones. The reactions are obtained from the work of Girard et al [13], Adamec et al [11], Teulet et al [14], Woodall et al [15] and Bartlová et al [10] as shown in table 1.…”

Section: Two-temperature Chemical Kinetic Modelmentioning

confidence: 99%

Dominant Physicochemical Properties of SF6/N2 Thermal Plasmas with a Two-temperature Chemical Kinetic Model

Wang

Gao

Zhong

et al. 2016

PPT

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It's increasingly clear that the existence of thermodynamic equilibrium is an exception rather than the role in SF6/N2 thermal plasmas. We intended to investigate the dominant physicochemical properties of SF6/N2 thermal plasmas at 4 atm from 12000 K to 1000 K with considering the thermal non-equilibrium. A two-temperature chemical kinetic model containing all the available reactions is developed. The temperature difference between the electron and the heavy species is defined as a function of the electron number density. The molar fractions of species are compared to the equilibrium composition predicted by Gibbs free energy minimization. By analyzing the main reactions in the generation and loss of a dominant species, the chemistry set is simplified and characterized by a few species and reactions. Then, the dominant physicochemical properties are captured and the computing time of complicated chemical kinetic model is dramatically shortened at the same time.

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“…However, prior to the 1T-NCE model for mixed gas plasma, two-temperature chemically non-equilibrium (2T-NCE) model for pure Ar only with ICTP have been developed by Mostaghimi et al [27], Paik et al [28] and Bartosiewicz et al [29]. Gonzalez et al [30,31] developed thermal and chemical non-equilibrium model for SF 6 circuit breaker arcs. So, except Zhao et al a very few works have been done for mixed gas plasma.…”

Section: Two-temperature Non-chemical Equilibrium (2t-nce)mentioning

confidence: 99%

“…The most primary one is the one-temperature chemical equilibrium (1T-CE) model [3] that is widely known as LTE model. The second one is the one-temperature chemical non-equilibrium (1T-NCE) model [31,32]. Two-temperature chemical non-equilibrium (2T-NCE) model for Ar-N 2 ICTP was developed by one of the author before [34].…”

Section: Three Different Models For Thermal Plasma Simulationmentioning

confidence: 99%

Two-Temperature Two-Dimensional Non Chemical Equilibrium Modeling of Ar–CO2–H2 Induction Thermal Plasmas at Atmospheric Pressure

Al-Mamun

Tanaka

Uesugi

2009

Plasma Chem Plasma Process

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Here the authors developed a two-dimensional two-temperature chemical nonequilibrium (2T-NCE) model of Ar-CO 2 -H 2 inductively coupled thermal plasmas (ICTP) around atmospheric pressure (760 torr). Assuming 22 different particles in this model and by solving mass conservation equations for each particle, considering diffusion, convection and net production terms resulting from 198 chemical reactions, chemical non-equilibrium effects were taken into account. Species density of each particle or simply particle composition was also derived from the mass conservation equation of each one taking the non chemical equilibrium effect into account. Transport and thermodynamic properties of Ar-CO 2 -H 2 thermal plasmas were self-consistently calculated using the first order approximation of the Chapman-Enskog method at each iteration point implementing the local particle composition and temperature. Calculations at reduced pressure (500 and 300 torr) were also done to investigate the effect of pressure on non-equilibrium condition. Results obtained by the present model were compared with results from one temperature chemical equilibrium (1T-CE) model, one-temperature chemically non equilibrium (1T-NCE) model and finally with 2T-NCE model of Ar-N 2 -H 2 plasmas. Investigation shows that consideration of non-chemical equilibrium causes the plasma volume radially wider than CE model due to particle diffusion. At low pressure with same input power, presence of diffusion is relatively stronger than at high pressure. Comparison of present reactive model with non-reactive Ar-N 2 -H 2 plasmas shows that maximum temperature reaches higher in reactive C-H-O molecular system than non-reactive plasmas due to extra contribution of reaction heat.

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A two-temperature kinetic model of SF₆plasma

Cited by 45 publications

References 25 publications

Plasma-enhanced catalysis for the upgrading of methane: a review of modelling and simulation methods

Plasma-enhanced catalysis for the upgrading of methane: a review of modelling and simulation methods

Dominant Physicochemical Properties of SF6/N2 Thermal Plasmas with a Two-temperature Chemical Kinetic Model

Two-Temperature Two-Dimensional Non Chemical Equilibrium Modeling of Ar–CO2–H2 Induction Thermal Plasmas at Atmospheric Pressure

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