Numerical study on the effect of the air jets at the inlet distributor in the gas-solids circulating fluidized-bed risers

Botao Peng, Jesse Zhu, Chao Zhang

Research output: Journal PublicationArticlepeer-review

5 Citations (Scopus)

Abstract

This work numerically conducted a comprehensive study on the jet effect of inlet distributor arrangements on the flow structure of gas-solids two-phase flow in circulating fluidized-bed risers. A computational fluid dynamics (CFD) model based on the Eulerian-Eulerian approach coupled with granular kinetics theory was adopted to carry out the simulation. Simulation results were compared with the experimental data. It was found that the inlet distributor has a great effect on the entire flow structure. The numerical results using jet inlet approaches predicted more distinct core-annulus flow structures mimicking the experimental results while the uniform inlet condition predicted a very flat flow structure. The jet effect of the inlet distributor is clearly revealed. A large lateral flow can be seen because of the jet effect. A reasonable CFD model needs to take into account the inlet distributor configuration and consider the jet effect at the inlet.

Original languageEnglish
Pages (from-to)5310-5322
Number of pages13
JournalIndustrial & Engineering Chemistry Research
Volume49
Issue number11
DOIs
Publication statusPublished - 2 Jun 2010
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry (all)
  • Chemical Engineering (all)
  • Industrial and Manufacturing Engineering

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