Eur. Phys. J. Appl. Phys.
Volume 45, Number 2, February 2009
|Number of page(s)||7|
|Section||Plasma, Discharges and Processes|
|Published online||31 January 2009|
Gas heating in fast pulsed discharges in N2–O2 mixtures
LMSE, Faculté de Génie Électrique, USTO-MB, BP 1505 El M'Naouar, 31000 Oran, Algeria
2 LAPLACE, Université de Toulouse, CNRS-UPS-INP, 118 Route de Narbonne, 31062 Toulouse Cedex 9, France
Corresponding author: firstname.lastname@example.org
Accepted: 18 December 2008
Published online: 31 January 2009
The dynamics of gas heating in fast pulsed discharges in nitrogen-oxygen mixtures was analyzed using a state-specific plasmachemical model and an energy conservation equation. It was shown that the heating rate changes over time according to the changes of the species involved in the heating processes. An increasing dependence on time was shown. The results show that higher electron density, electric field or partial pressure of oxygen leads to a faster gas heating. However, the heating rate associated with excitation of vibrational and electronic degrees of freedom is almost independent of the value of the applied field in the studied range of fields.
PACS: 82.33.Xj – Plasma reactions (including flowing afterglow and electric discharges) / 52.80.-s – Electric discharges
© EDP Sciences, 2009
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