Influence of Packing Limit on Gas-Solid Fluidized Bed Flow Pattern by Computational Fluid Dynamics

บทคัดย่อ

The present work aims to studythe influence of packing limit on gas-solid fluidized bed flow pattern by using the computational fluid dynamics (CFD). The Multi-fluid Eulerian model was applied to simulate the unsteady stategas-solid fluidized bed. The gas-solid phase was characterized by varying the packing limit values from 0.55 - 0.63. The model was validated by comparingthe simulation results with the experimental data to achieve the optimal model. The simulated resultsshowed that the flow pattern obtained bythe modelwithpacking limit value of 0.63 was the suitable model because of the accurate steady state value and its time dependent pressure drop tendency.