A pressure drop model for circulating fluidised bed

N. B. Subramanian, C. Srinivasakannan

Research output: Contribution to journalArticlepeer-review


A model for solids concentration and two phase pressure drop in the riser of circulating fluidised bed is proposed. It is based on slip velocity and takes into consideration buoyancy effects, hindrance effects and the formation of particle agglomerates. The local and average pressure drop and solids concentration were measured in a circulating fluidised bed for Geldart A and B group materials: a wide range of phase velocities and particle characteristics was covered. The experimental data of the present work and those reported in literature were compared with the predictions obtained by the model.

Original languageBritish English
Pages (from-to)251-256
Number of pages6
JournalHungarian Journal of Industrial Chemistry
Issue number4
StatePublished - 1998


  • Circulating fluidised bed
  • Slip velocity
  • Two phase pressure drop


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