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2015 | 13 | 1 |
Tytuł artykułu

P1-approximation for radiative transfer: application to SF6+ Cu arc plasmas

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The objective of the paper consists of a theoretical prediction of radiative heat transfer in arc plasmas of SF6 (sulphur hexafluoride) with various admixtures of copper vapours. The P1-approximation was used as a mathematical tool. Due to the very complicated frequency dependence of absorption coefficients, the Planck and Rosseland mean absorption coefficients have been derived from the calculated absorption spectrum. The main radiation quantities (radiation intensity, radiation flux density and its divergence – net emission) have been determined in cylindrical arc plasmas for several model temperature profiles. Contribution to the net emission of copper admixtures is discussed. Conclusions have been made concerning validity and utilization of various absorption means.
EN
Wydawca

Czasopismo
Rocznik
Tom
13
Numer
1
Opis fizyczny
Daty
otrzymano
2014-01-09
zaakceptowano
2014-06-02
online
2014-12-01
Twórcy
  • Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 8, 612 00 Brno, Czech Republic,
  • Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 8, 612 00 Brno, Czech Republic,
  • Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 8, 612 00 Brno, Czech Republic,
  • Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 8, 612 00 Brno, Czech Republic,
Bibliografia
  • [1] Aubrecht V., Bartlova M., Influence of Cu Vapour on Radiation in SF6 Arc Plasma, In: P. Sutta, et al. (Ed.), Proceedings of XIVth Symposium on Application of plasma Processes (13-18 January 2003, Liptovsky Mikulas, Slovak Republic), Comenius University Bratislava, 2003, 5-6.
  • [2] Aubrecht V., Bartlova M., Contribution of Cu Vapour to Radiation Transfer in SF6 + PTFE Arc Plasmas, In: R. d’Agostino, et al. (Ed.), Proceedings of 16th International Symposium on Plasma Chemistry (22-27 June 2003, Taormina, Italy), University of Bari, 2003, 682-686.
  • [3] Nordborg H., Iordanidis A.A., Self-consistent radiation based modelling of electric arcs: I. Efficient radiation approximations, J. Phys. D: Appl. Phys., 2008, http://iopscience.iop.org/0022-3727/41/13/135205.
  • [4] Peyrou B., et al., Radiative properties and radiative transfer in high pressure thermal air plasmas, J. Phys. D: Appl. Phys., 2012, http://iopscience.iop.org/0022-3727/45/45/455203.
  • [5] Sasanuma M., et al., Photoionisation of SF6 in the XUV region, J. Phys. B: Atom. Molec. Phys., 1979, 12, 4057-4064.[Crossref]
  • [6] Coufal O., Sezemsky P., Zivny O., Database system of thermodynamic properties of individual substances at high temperatures, J. Phys. D: Appl. Phys., 2005, 38, 1265-1274.[Crossref]
  • [7] Burgess A., Seaton M., Cross Sections for Photoionisation from Valence-Electron States, Rev. Mod. Phys., 1958, 30, 992-993.[Crossref]
  • [8] Liebermann R.W., Lowke J.J., Radiation emission coefficients for sulphur hexafluoride arc plasmas, JQSRT, 1976, 16, 253-264.
  • [9] Aubrecht V., Bartlova M., Net Emission Coefficients of Radiation in Air and SF6 Thermal Plasmas, Plasma Chem. Plasma Process, 2009, 29, 131-147.
  • [10] Hannachi R., et al., Net Emission of H2O-air-MgCl2/CaCl2/NaCl thermal plasmas, J. Phys. D: Appl. Phys., 2008, http://iopscience.iop.org/0022-3727/41/20/205212
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_1515_chem-2015-0063
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