Numerical Model and Experimental Validation of the Hydrodynamics in an Industrial-Scale Sewage Sludge Bubbling Fluidized Bed Incinerator

摘要

This paper describes a development of a numerical model and experimental validation of the hydrodynamics in industrial-scale sewage sludge bubbling fluidized bed incinerator. The numerical model and simulations are performed using commercial CFD software package ANSYS Fluent 14.5. The complex geometry of the developed numerical model represents the actual industrial-scale bubbling fluidized bed combustor. The gas-solid flow behaviour inside the bed was described using the Eulerian-Eulerian multiphase model. The momentum exchange coefficients between the gas phase and solid particles were described by the Syamlal and O'Brien drag model equations.........