Progress in Plasma Processing of Materials, 1997

ISBN Print: 1-56700-093-2

FLOW MODELLING AND GAS HEATING INSIDE A PROFILING CHANNEL OF AN ELECTRIC ARC PLASMA TORCH

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DOI: 10.1615/ITPPC-1996.1090
pages 923-930

V.M. Lelevkin Kyrgyz-Russian Slavic University, 720000, Bishkek, Kyrgyzstan

E. B. Kulumbaev Kyrgyz-Russian Slavic University, 720000, Bishkek, Kyrgyzstan

V.F. Semenov Kyrgyz-Russian Slavic University, 720000, Bishkek, Kyrgyzstan

D.K. Otorbaev Institute of Chemistry and Chemical Technology - Kyrgyz National Academy of Sciences Prospect Chui 265 A - 720071 - Bishkek - Kyrgyz Republic

D. C. Schram Dept. of Applied Physics, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands

Résumé

This paper presents a theoretical model for the numerical analysis of the acceleration and heating of a gas by an electric arc in a profiling channel with a diffusor anode. The thermal parameters and transport coefficients of helium have been determinated and the approximative expression for their calculation in a broad range of temperature (0,3-100) kK and pressures have been proposed. The calculation and investigation of the effect of the thermal non-equilibrium plasma on the characteristics of the cylindrical arc have been carried out. The results of the calculations have been compared with experimental data and calculations obtained on the basis of an equilibrium plasma model.

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