Mechanisms of NO Formation during SiO Combustion

As a part of the FUME research programme being done by the Norwegian Ferroalloy Research Association (FFF), the SINTEF Group and NTNU several measurements towards quantifying the gaseous and solid emissions from the draining of the silicon furnaces for metal have been carried out. Based on the measu...

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Bibliographic Details
Published in:AIP conference proceedings 2012-03
Main Authors: Eivind Kamfjord, Nils, Tveit, Halvard, Myrhaug, Edin, Naess, Mari
Format: Article
Language:English
Subjects:
Combustion
Drainage
Estimates
Fumes
Furnaces
Heating
Mathematical models
Thermodynamic models
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Summary:As a part of the FUME research programme being done by the Norwegian Ferroalloy Research Association (FFF), the SINTEF Group and NTNU several measurements towards quantifying the gaseous and solid emissions from the draining of the silicon furnaces for metal have been carried out. Based on the measured size distribution of the formed fume particles and known particle growth theory an estimate of the growth time for the given particles has been calculated. The formation time for the measured NO amount has also been calculated based on the fume measurements and a thermodynamic model of the furnace gases combusting with air. The two "formation" times is in the same order of magnitude and they are therefore used as parameters in a CFD model, modelling that the formed fume particles heating up the surrounding air and thereby form NO according to the Zeldovich mechanism.
ISSN:0094-243X