Minimum superficial fluid velocity in a gas-solid swirled fluidized bed

S. Harish Kumar, D. V.R. Murthy

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


A swirl flow is achieved in a bed of solids by passing air through multiple fluid inlets, which are tangentially located at the base of a flat-based circular column. The minimum superficial velocities needed to achieve swirling of the bed are measured experimentally under varied conditions. An empirical correlation for the minimum swirl velocity has been proposed. The results indicate that a stable swirling regime operation of the bed is possible. There exists an upper limit of static bed depth beyond which stable swirling of entire bed is not possible. The minimum swirl velocities are found to be 1.2-1.3 times the minimum fluidization velocities predicted for conventional fluidized beds.

Original languageEnglish
Pages (from-to)1095-1100
Number of pages6
JournalChemical Engineering and Processing: Process Intensification
Issue number10
Publication statusPublished - 01-10-2010

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Energy Engineering and Power Technology
  • Process Chemistry and Technology
  • Industrial and Manufacturing Engineering


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