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Progress in Plasma Processing of Materials, 2001

ISBN:
1-56700-165-3 (Print)

HYDRODYNAMIC MODELLING OF A PLASMA REACTOR FOR PRODUCTION OF CARBON NANOSTRUCTURES. INFLUENCE OF THE ABSORPTION COEFFICIENT ON THE HEAT TRANSFER

I. Deme
Ecole des Mines de Paris, B.P. 207, F-06904 Sophia Antipolis Cedex, France

L. Fulcheri
Centre D'Energetique, Ecole Des Mines De Paris; Rue Claude Daunesse, B. P. 207, F-06904 Sophia Antipolis Cedex

Gilles Flamant
Laboratoire des Procedes, Materiaux et Energie Solaire, PROMES-CNRS UPR 8521, 7 rue du Four solaire, 66120 Font Romeu-Odeillo, France

Frederic Fabry
C. N. R. S., Institut de Science et de Genie des Materiaux et Procedes B. P. 5, Odeillo, F-66125 Font-Romeu Cedex

Abstract

The development of a new plasma process involving high temperature gas-solid interaction makes necessary the analysis of hydrodynamic phenomena. In this context, CFD modelling appeared as a key tool for the design, the control and the optimisation of the process. In a previous step, the general flow inside the reactor in the absence of carbon particles has been studied. A simplified approach to take into account the influence of the rotating electromagnetic forces (3-phase AC) has been developed. In the next step, whose preliminary results are presented in this paper, the injection of a gaseous hydrocarbon must be considered. We present in this paper a simple approach considering the plasma-particle system as a homogeneous continuous semi-transparent absorbent gas. The influence of the absorption coefficient is discussed.