Unsteady state analysis of free-burning arcs in a 3-Phase AC plasma torch: comparison between parallel and coplanar electrode configurations - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Plasma Sources Science and Technology Année : 2014

Unsteady state analysis of free-burning arcs in a 3-Phase AC plasma torch: comparison between parallel and coplanar electrode configurations

Résumé

An MHD model with parallel electrode configuration was developed to determine the influence of the electrode configuration on 3-Phase arc discharge behavior. The results obtained with this model were compared to previous results obtained with coplanar graphite electrode configuration. Results show a different arc behavior in both cases. In a parallel electrode configuration, the arcs are not confined within the inter-electrode gap as in coplanar electrode configuration. These results were compared to the arc behavior observed with a high-speed video-camera in a nitrogen atmosphere with a high correlation. The influence of frequency and current was also investigated. By adjusting the electrode configuration, the arc elongation and the dissipated power could be controlled. According to the application, such as plasma-assisted combustion, plasma gasification, plasma spray or for different plasma gases, the electrode configuration could play a key role to improve the discharge or operation. This study gives us a better understanding of 3-Phase AC arc plasma discharge.

Domaines

Fichier non déposé

Dates et versions

hal-01086921 , version 1 (25-11-2014)

Identifiants

Citer

Christophe Rehmet, Frédéric Fabry, Vandad-Julien Rohani, François Cauneau, Laurent Fulcheri. Unsteady state analysis of free-burning arcs in a 3-Phase AC plasma torch: comparison between parallel and coplanar electrode configurations. Plasma Sources Science and Technology, 2014, 23 (6), pp.article 065011. ⟨10.1088/0963-0252/23/6/065011⟩. ⟨hal-01086921⟩
134 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More