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A novel model for predicting the dense phase behavior of 3D gas-solid fluidized beds

Movahedirad, S ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1002/ceat.201300432
  3. Abstract:
  4. A novel phenomenological discrete bubble model was developed and tested for prediction of the hydrodynamic behavior of the dense phase of a 3D gas-solid cylindrical fluidized bed. The mirror image technique was applied to take into account the effects of the bed wall. The simulation results were validated against experimental data reported in the literature that were obtained by positron emission particle tracking. The time-averaged velocity profiles of particles predicted by the developed model were found to agree well with experimental data. The initial bubble diameter had no significant influence on the time-averaged circulating pattern of solids in the bed. The model predictions clearly indicate that the developed model can fairly predict the hydrodynamic behavior of the dense phase of 3D gas-solid cylindrical fluidized beds
  5. Keywords:
  6. Discrete bubble model ; Bubble-bubble interaction ; Discrete bubble modeling ; Gas-solid fluidized bed ; Hydrodynamic behavior ; Mirror-image techniques ; Multi-phase reactor ; Positron emission particle tracking ; Time-averaged velocity ; Fluidized beds ; Forecasting ; Hydrodynamics ; Three dimensional
  7. Source: Chemical Engineering and Technology ; Volume 37, Issue 1 , January , 2014 , Pages 103-112 ; ISSN: 09307516
  8. URL: onlinelibrary.wiley.com/doi/10.1002/ceat.201300432/abstract;jsessionid=3C6E6D854A7508C61CB27DFBEE9A2211.f04t02