Numerical Analysis of Combustion Dynamics for Coal Gasification

Abstract

During the combustion process of coal, the emissions pollute the environment. So, to control these emissions and to get the energy from coal the coal clean technologies are focused. The Integrated gasification clean coal is more efficient process and the numerical analysis play essential role in the improvement of gasification process. Different accepts of this process are analyzed. In this study the dynamic numerical approach is counseled to propose the fractions of different species present in the syngas produced during gasification because of volatile breakup. The volatile matter produced from solid fuel is composed of hydrogen, carbon, oxygen, nitrogen and sulfur. The composition of these species is estimated by species balance with their fraction existent in solid fuels. Computational fluid dynamic analysis is performed incorporating the volatile break-up predicted through finite volume method. Finite rate/Eddy dissipation model is implemented for reaction rates. The syngas outlet composition and temperature are examined with the experimental data. The analysis outcome that model results are within 10% precision with experimental data.