DBPapers
DOI: 10.5593/SGEM2014/B42/S19.069

STUDY ON MATHEMATICAL MODELING OF THE DISPERSION SULFUR DIOXIDE BY BURNING FOSSIL FUELS

C. Daniela, Pecingina Irina, Cirtina Liviu
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-16-2 / ISSN 1314-2704, June 19-25, 2014, Book 4 ,Vol. 2, 523-530 pp

ABSTRACT
The modeling improves the effectiveness of air quality management because in this way can be calculated, predict and estimate the levels of pollutants in the ambient air and can identify the contribution of different categories of sources exceeding the limit. This paper presents a dispersion modeling of sulfur dioxide generated by the emission
sources associated activities carried out by the power plants based on fossil fuels, in the Rovinari Energy Complex, Romania. In this study has been analyzed the impact of the operation of these emission sources on air quality, in two distinct activities: activity 1 aims to assess the existing pollution fund, due to other emission sources at regional and local level and activity 2 aims to assess the impact on air quality due solely to the operation of large combustion plants of the Rovinari Energy Complex, considering their performance in five different scenarios, before and after the start of the desulphurisation installation for the four energy blocks. The choice of scenarios was made in order to observe the temporal variation of the SO2 pollution levels generated by the operation of four energy blocks of the Rovinari Energy Complex, as a result of equipping them with desulphurisation plant of the flue gas from the worst case to ambient air quality corresponding to the first scenario. Dispersion model used TAPM (The Air Pollution Model) is combined model meteorology – dispersing and the modeling results are presented as maps of pollution. The maximum values obtained by modeling of pollutant concentrations analyzed, on different averaging intervals, have been reported for each activity and screenplay by modeling, at the limit values set by legislation on ambient air quality of Romania. From the recorded data shows that impact on air quality due solely to the operation of large combustion plants belonging to Rovinari Energy Complex is extremely high, maximum concentrations from SO2 obtained by modeling hovering well above the appropriate limit values for four of the five scenarios studied.

Keywords: pollutant, dispersion, mathematical modeling.