Abstract
This paper deals with the comparative study of the dispersion of some components of flue gases in the atmosphere. Mathematical modelling of the dispersion of pollutants discharged from technological furnaces in refineries is carried out using high-performance software. Thus, taking into account the meteorological conditions and the pollutant concentrations, the level of atmospheric pollution can be determined.
The aim of the paper is to compare the values of NO2 and CO concentrations obtained with the classical Gaussian dispersion model algorithm with the values of pollutant concentrations estimated using the SCREEN View simulation software.
The determinations were made taking into account receivers located at distances of 100 m, 500 m, 2500 m and 5000 m from the emission source, thus it was established at which distance from the source the maximum pollutant concentrations resulted. For atmospheric stability class, A and F (very unstable and stable). For A stability class, the maximum concentrations pollutant resulted at a distance of 500m from the emission source, and for F stability class, the maximum pollutant concentrations resulted at a distance of 2500 m from the emission source.
Both with the classic work methodology and with the SCREEN View software, the concentration values are comparable, this underlines the precision of the software.
Also, with the classic Gaussian modelling algorithm, the maximum height of the smoke plume was calculated. This is higher for stability class A, compared to F.
The aim of the paper is to compare the values of NO2 and CO concentrations obtained with the classical Gaussian dispersion model algorithm with the values of pollutant concentrations estimated using the SCREEN View simulation software.
The determinations were made taking into account receivers located at distances of 100 m, 500 m, 2500 m and 5000 m from the emission source, thus it was established at which distance from the source the maximum pollutant concentrations resulted. For atmospheric stability class, A and F (very unstable and stable). For A stability class, the maximum concentrations pollutant resulted at a distance of 500m from the emission source, and for F stability class, the maximum pollutant concentrations resulted at a distance of 2500 m from the emission source.
Both with the classic work methodology and with the SCREEN View software, the concentration values are comparable, this underlines the precision of the software.
Also, with the classic Gaussian modelling algorithm, the maximum height of the smoke plume was calculated. This is higher for stability class A, compared to F.
Keywords
dispersion
flue gases
chimney
refineries
pollutant
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