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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
SJR: 0.137 SNIP: 0.341 CiteScore™: 0.43

ISSN 印刷: 1093-3611
ISSN オンライン: 1940-4360

High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

DOI: 10.1615/HighTempMatProc.v10.i2.60
pages 231-238

THERMAL PERTURBATION PRODUCED BY A CYLINDRICAL ARC PLASMA AT ATMOSPHERIC PRESSURE

Charles de Izarra
LASEP (Laboratoire d'Analyse Spectroscopique et d'Energetique des Plasmas), UFR-Faculte des Sciences, Antenne de BOURGES, Universite d'ORLEANS, rue Gaston Berger, BP 4043, 18028 BOURGES CEDEX, FRANCE
Herve Rabat
LASEP : Laboratoire d'Analyse Spectroscopique et d'Energétique des PLasmas, UPRES-EA 3269 Faculté des Sciences, Site de Bourges, Université d'Orléans, rue Gaston Berger, BP 4043, 18028 Bourges Cedex France
Michel Pennaneac'h
LASEP : Laboratoire d'Analyse Spectroscopique et d'Energétique des PLasmas, UPRES-EA 3269 Faculté des Sciences, Site de Bourges, Université d'Orléans, rue Gaston Berger, BP 4043, 18028 Bourges Cedex France

要約

This paper deals with an experimental study of the thermal perturbation produced in the surrounding medium by a cylindrical arc plasma column operating in pure argon at atmospheric pressure. A Mach-Zehnder interferometer operating with a He-Ne laser allows carrying out radial temperature profiles from the axis of the plasma column up to a few diameters of the plasma column in the surrounding gas. We propose a simple model based on a pure conductive heat transfer process, and we give a comparison of experimental data with theoretical predictions. In addition, we introduce the notion of Arc Thermal Interaction Radius in order to quantitatively characterize the area perturbed by the arc plasma column.


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