Modelling and simulation of thermodynamic processes of vertical shaft kiln in magnesia plant using CFD code fluent

This paper presents a computational fluid dynamics (CFD) modelling and simulation of thermodynamic processes of vertical shaft kiln in a Magnesia plant. The model is a 2D steady state model. The combustion, particle-gas dynamics and heat transfer processes which occur inside a vertical shaft kiln are modelled by Eulerian multiphase model, and Species transport and finite volume chemical reaction model.Segregated solver is employed to solve and couple the numerical calculations from each model. Computational methodology and results are presented and discussed. Predicted gas temperature profiles inside shaft kiln show good agreement with the designed data (values) supplied by reference plant.