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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
SJR: 0.137 SNIP: 0.341 CiteScore™: 0.43

ISSN 印刷: 1093-3611
ISSN オンライン: 1940-4360

High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

DOI: 10.1615/HighTempMatProc.v10.i1.50
pages 47-54

MEAN ABSORPTION COEFFICIENT FOR CO2 THERMAL PLASMAS

Y. Cressault
Centre de Physique des Plasmas et de leurs Applications de Toulouse (CPAT) UMR n° 5002 − Université Paul Sabatier, 118 Route de Narbonne F31062 Toulouse Cedex 4 - France
Alain Gleizes
Centre de Physique des Plasmas et de leurs Applications de Toulouse (CPAT) UMR n° 5002 − Université Paul Sabatier, 118 Route de Narbonne F31062 Toulouse Cedex 4 - France

要約

We have calculated the mean absorption coefficient for CO2 thermal plasma, at atmospheric pressure in the temperature range between 300 and 30000K. The plasma is supposed to be in local thermodynamic equilibrium and to correspond to a gray body medium in several frequency intervals. This study takes into account the radiation resulting from the atomic continuum, the molecular continuum, the O2 molecular bands and from the atomic lines. The results show the phenomenon of self-absorption in the visible and UV parts of the spectrum, and the influence of the plasma thickness on the mean absorption coefficient.


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