CFD simulation and experimental validation of multiphase flow in industrial cyclone preheaters

A hybrid multiphase model (Dense Discrete Phase Model, DDPM) coupled with a k-? sst turbulence model, which includes gas–solid heat exchange was developed for the simulation of industrial-scale cyclone preheaters operating under high solid loadings. The results are validated by experimental measurements from an industrial preheater diameter 1.6 m, respect to pressure drop, gas and particle exit temperature, local velocity profiles, measured using LDA, temperature thermocouple FTIR. Reasonable agreement between data experiments simulations obtained. In addition, major trends, such as changes in overall transfer rate, flow pattern, caused parameters can be captured accurately model.