Numerical Simulation on Superheated Steam Fluidized Bed Drying: II. Experiments and Numerical Simulation

Based on the established axisymmetric two-dimensional superheated steam fluidized bed drying model, some required physical parameters and parametric models are measured and determined by experiments. The model can simulate the drying process and inhomogeneous spatial distribution of some thermodynamic and hydrodynamic parameters of rapeseed and superheated steam under normal pressure. The simulated drying dynamic curves are in agreement with the experimental curves. In the short condensing and heating period, a negative drying rate appears and rapeseed cannot be fully fluidized. The simulated and experimental results show that rapeseed is dried evenly without local overheating.