Kinetic model of a low-pressure N{sub 2}-O{sub 2} flowing glow discharge

Journal Article · Tue Aug 01 04:00:00 EDT 1995 · IEEE Transactions on Plasma Science

DOI:https://doi.org/10.1109/27.467998· OSTI ID:118923

Gordiets, B F; Ferreira, C M; Guerra, V L; Loureiro, J M.A.H. ^[1]; Nahorny, J; Pagnon, D; Touzeau, M; Vialle, M ^[2]

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1. Instituto Superior Tecnico, Lisboa (Portugal). Centro de Electrodinamica
2. Univ. Paris-Sud, Orsay (France)

A self-consistent kinetic model is developed to study dc flowing glow discharges in N{sub 2}/O{sub 2} mixtures. This model includes the calculation of electron energy distribution functions and electron rate coefficients coupled with detailed vibrational kinetics of N{sub 2} molecules, chemical kinetics taking into account a large set of neutral, excited and charged species, interaction of N and O atoms at the discharge tube wall, and the thermal balance of the discharge. The results of this model agree reasonable well with the measurements of the electronic density, the gas temperature, the reduced electric field, the vibrational temperature of N{sub 2}, and the concentration of O, N atoms, NO molecules, N{sub 2}(C), N{sub 2}{sup +}(B), and NO({gamma}) excited states. The comparison was performed in a N{sub 2}-O{sub 2} discharge at pressure p + 2 Torr, for discharge currents I = 15, 30, and 80 mA, a flow rate Q = 100 sccm, and O{sub 2} percentages ranging from 0 up to 100%. The kinetic processes occurring in low-temperature plasmas of the atmospheric gases N{sub 2}, O{sub 2} and their mixtures are presently the subject of many investigation due to their importance in atmospheric and ionospheric physics, and in plasma chemistry in general.

• OSTI ID: 118923
• Journal Information: IEEE Transactions on Plasma Science, Journal Name: IEEE Transactions on Plasma Science Journal Issue: 4 Vol. 23; ISSN ITPSBD; ISSN 0093-3813
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CHEMICAL REACTION KINETICS
EXPERIMENTAL DATA
GLOW DISCHARGES
NITROGEN
OXYGEN
PLASMA DIAGNOSTICS
PLASMA SIMULATION
THEORETICAL DATA
USES