Numerical analysis of air pollutant dispersion in steam power plant area using the finite volume method

Abstract

In this research a mathematical model will be developed for the distribution of air pollutants. The model is built on the basis of momentum equations and mass continuity equations solved using the finite volume method. Based on the model obtained, the effect of wind speed and initial concentration on the distribution of pollutants in the air will be analyzed. An air pollutant with a certain concentration released through the chimney into the atmosphere will undergo a process of transportation and transformation. The characteristics of emission sources such as concentration when the emission and wind speed around the chimney really determine the spreading of the concentration. The case study in this research is located in the Paiton-Probolinggo Steam Power Plant area. The analysis of the distribution of pollutants was solved numerically using the Gauss Seidel iteration method assisted by MATLAB software and simulated using a CFD approach assisted by FLUENT software. The results obtained in this research indicated that the greater the wind speed around the chimney, the lower the concentration of SO2 pollutants in the air, while the effect of the initial concentration showed that the greater the initial concentration, the greater the concentration of pollutants scattered in the air.