Simulation of pollutants dispersion by a stack: a case study

The rapid growth of urbanization and industrialization cause the world face with the most important environmental
issues of air pollution in many cities and industrial zones. In the present research, air pollution due to the emission
of pollutants air quality is studied. Emission and dispersion of NOx from a stack located in an industrial zone are
simulated based on the meteorological data. The geometry of the stack and surrounding area are selected from a power
plant data. The analysis is individually performed for four seasons using the wind field and direction. It is shown
that wind direction significantly affects the pollutants circulation zone. The pollutants inversion are unpreventable
occurred in winter because of the mixing area is not well altitudinal extended.