每年出版 4 期
ISSN 打印: 1093-3611
ISSN 在线: 1940-4360
Indexed in
CALCULATION OF SILICON PARTICLES DYNAMICS, HEAT AND MASS TRANSFERS IN THERMAL PLASMAS. EFFECT OF PARTICLES VAPORIZATION
摘要
In this paper there were calculated the motion and the heating of a silicon particle in the RF ICP torch which is used in the Laboratoire de Genie des Procedes Plasmas et Traitement de Surfaces (Universite P. et M. Curie, France) for powder treatment and which works at the frequency of 5 MHz, the plasma power being 10 kW.
The model for the particle heating takes into account the following processes: the particle heating, its melting, vaporization (including losses of energy by vaporization and heating of the vapor cloud) and evaporation (boiling). The temperature inside the particle is supposed uniform.
A new way of correction of the vaporization calculation is proposed. In order to evaluate the effect of the particle vaporization on the particle heating, several variants were calculated: without vaporization and with vaporization calculated by different equations.
The way of vaporization calculation was chosen on the basis of comparison between calculations and experimental data.
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Matveev Igor B., Serbin Serhiy I., Modeling of the Coal Gasification Processes in a Hybrid Plasma Torch, IEEE Transactions on Plasma Science, 35, 6, 2007. Crossref
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Peng Hu, Shikai Yan, Fangli Yuan, Liuyang Bai, Jinlin Li, Yunfa Chen, Effect of Plasma Spheroidization Process on the Microstructure and Crystallographic Phases of Silica, Alumina and Nickel Particles, Plasma Science and Technology, 9, 5, 2007. Crossref
-
Leparoux M., Schreuders C., Fauchais P., Improved Plasma Synthesis of Si-nanopowders by Quenching, Advanced Engineering Materials, 10, 12, 2008. Crossref
-
Goldstein R.J., Ibele W.E., Patankar S.V., Simon T.W., Kuehn T.H., Strykowski P.J., Tamma K.K., Heberlein J.V.R., Davidson J.H., Bischof J., Kulacki F.A., Kortshagen U., Garrick S., Srinivasan V., Heat transfer—A review of 2003 literature, International Journal of Heat and Mass Transfer, 49, 3-4, 2006. Crossref