NUMERICAL STUDY OF A NON-ISOTHERMAL BUBBLING FLUIDIZED BED

The present work develops a numerical model to simulate heat transfer in a bubbling fluidized bed using Computational Fluid Dynamics coupled with the Discrete Element Method (CFD–DEM) approach as a step for biomass pyrolysis simulations. The model considers particle collisional dynamics and heat transfer between the gas and solid phases through the Ranz-Marshall correlation. A new in-house solver was implemented in the OpenFOAM® environment, combining thermal exchange and particle-particle collisions.