Electrical characterisation of very high pressure AR/H-2 low current arc discharge

Eduardo Izquierdo (1) , José Gonzalez-Aguilar (1) , Laurent Fulcheri (2)

1 CEP - Centre Énergétique et Procédés
2 CEP/Sophia

The characterisation of low current - high pressure tip-tip arc discharges in hydrogen - argon mixtures is presented. Main investigated parameters are : inter-electrode gap, mean arc current, H-2/Ar mixture ratio and pressure. This was comprised between 0.1 MPa to 15 MPa. Mean arc voltage increases with pressure, H-2/Ar mixture ratio and inter-electrode gap. The V - I curves shows typical non-thermal behaviour of the discharge. The high pressure seems having only poor influence on the non-thermal regime arc transition.

Mots clés: Arc discharge; Hydrogen/argon mixture; Very high pressure

Domaines: Sciences de l'ingénieur [physics]; Energétique

Eduardo Izquierdo, José Gonzalez-Aguilar, Laurent Fulcheri. Electrical characterisation of very high pressure AR/H-2 low current arc discharge. High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes, 2009, 13 (1), pp.Pages 71-76. ⟨10.1615/HighTempMatProc.v13.i1.50⟩. ⟨hal-00481489⟩