Analysis of a 3-Phase AC Plasma system

Benjamin Ravary (1) , Laurent Fulcheri (1) , Gilles Flamant (2) , Frédéric Fabry (2)

1 CEP/Sophia
2 IMP-CNRS - Institut De Science Et De Génie Des Matériaux Et Procédés

A 3-phase AC plasma reactor has been developed in the frame of researches on hydrocarbon cracking for the production of carbon black and hydrogen. A summary of the main characteristics of the reactor as well as the operating conditions and the possible applications of the process are given. The 3 - phase - 50 Hz AC current plasma generator induces a very particular arc motion which is analysed by high-speed cine-camera. This arc motion appears to be of major importance for the momentum and heat transfers inside the reactor. The influence of this phenomenon is included in a Computational Fluid Dynamic (CFD) model of the reactor by tilting the inlet velocity of the plasma gas in the outward direction. This simplified approach shows a good agreement with experimental temperatures and calorimetric measurements carried out on the reactor.

Mots clés: 3-Phase AC Plasma; Carbon Black; CFD Model; Flow; Heat and Mass Transfer

Domaines: Energétique

Benjamin Ravary, Laurent Fulcheri, Gilles Flamant, Frédéric Fabry. Analysis of a 3-Phase AC Plasma system. High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes, 1998, 2 (2), pp.245-260. ⟨hal-00545990⟩