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Progress in Plasma Processing of Materials, 2001

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

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
CNRS PROMES UPR 8521, Tecnosud, Rambla de la Thermodynamique, 66100 Perpignan, 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

Resumo

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.