Effect of wind velocity and flare height parameters on pollution dispersion from one flare with zonal method

With increasing growth of industrial units in developing countries and pollutants produced by these units, nowadays distribution and dispersion modelling of atmosphere pollutants especially in urban areas is an inevitable importance. Dispersion modelling of atmosphere pollutants is a methodology to estimate focus and concentration values of pollutants related to emission source in different seasons. In current study, using numerical analysis, a thermal diffusion of flare and focus values of industrial pollutants simulation using air zonal methodology has been presented. After studying pollutants emission in open area, validation has been done using laboratory data results and computational fluid dynamics method. The results of this study indicate the ability of presented air zonal methodology to predict thermal diffusion of flare and distribution concentration of pollutant source and information gained from this analysis. Then an exploration of effective parameters in pollution emission such as wind velocity, flare height, and pollution emission rate in downstream has been done. As the results show, when wind velocity rises by ۱۳۰%, pollution will reach far away from production source and with increase in flare height by ۲۵%, the pollution concentration values on the ground has been reduced by ۴۴%. Also with addition of barrier in pollution dispersion path, pollution level will increase by ۶۰%.

Keywords:

Flare , Zonal methodology , Pollution diffusion , Special cells