Electric spark discharge in air characterization by following electrodes erosion
1 : Groupe de recherches sur l'énergétique des milieux ionisés
(GREMI)
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Website
CNRS : UMR7344, Université d'Orléans
14 Rue d'Issoudun - BP 6744 45067 ORLEANS CEDEX 2 -
France
2 : Laboratoire Pluridisciplinaire de Recherche en Ingénierie des Systèmes et Mécanique Energétique
(PRISME)
* : Corresponding author
Université d'Orléans : EA4229
The plasma column diagnosis of an electric discharge used to ignite dust explosion, has been performed by optical emission spectroscopy methods using the well-known Boltzmann plot method based on W I spectral lines, to determine the electron temperatures. In the peripherical zone of the discharge, molecular spectroscopy methods are applied, by comparing the experimental spectrum with a simulated one.
The first results indicate that the plasma is close to the local thermodynamic equilibrium at a temperature close to 11000 K.
