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CONTRIBUTION A L'ETUDE DE L'INFLUENCE DE LA MOLECULE DE CO2 SUR UN PLASMA DE MELANGE Ar-CO2,
ETUDE EXPERIMENTALE DE LA REPARTITION RADIALE DES
TEMPERATURES DANS UN PLASMA Ar-CO2,

Abstract : This work is devoted both the experimental and theoretical study of a thermal plasma formed in Ar-CO2. First the composition and thermodynamic properties are calculated versus temperature for various percentages of CO2 and Ar at atmospheric pressure and at thermodynamic equilibrium.
Secondly, with a Maecker chamber a spectroscopy emission ananlysis in made for the various proportion of Ar-CO2. The Abel inversion is discussed. The temperatures are obtain from atomic spectral lines (ArI, CI, OI) and diatomic spectral lines (Swan System of C2, Violet system of CN)
The main results are:
-The local stoechiometric coefficients are not the injected one
-The plasma temperature increases with current
-The gradient temperature decreases with current
-The shape of temperatures of electronic exited levels are modified with the proportion of Ar-CO2
- Higher CO2 percentage the lower gradient temperature.
-The temperature axis around 7000 to 8500 K
-The rotational temperatures correspond to external zone.
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https://tel.archives-ouvertes.fr/tel-00174390
Contributor : Pascal André <>
Submitted on : Monday, September 24, 2007 - 11:21:59 AM
Last modification on : Thursday, January 11, 2018 - 6:16:18 AM
Long-term archiving on: : Monday, June 27, 2011 - 3:36:27 PM

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  • HAL Id : tel-00174390, version 1

Citation

Essaadia Maouhoub. CONTRIBUTION A L'ETUDE DE L'INFLUENCE DE LA MOLECULE DE CO2 SUR UN PLASMA DE MELANGE Ar-CO2,
ETUDE EXPERIMENTALE DE LA REPARTITION RADIALE DES
TEMPERATURES DANS UN PLASMA Ar-CO2,. Energie électrique. Université Blaise Pascal - Clermont-Ferrand II, 1997. Français. ⟨tel-00174390⟩

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