Minimum Fluidization Velocity in Gas-Solid Fluidized Beds with Co-axial Rod and Disk Promoters

Abstract

Experiments have been conducted to study the effect of different types of turbulence promoters on minimum fluidization velocity in a gas-solid fluidized bed. Four number of rod promoters and seven number of disk promoters with different configuration and dimension have been used. The predicted values of minimum fluidization mass velocity have been found to be in close agreement with the corresponding experimental ones. The experimental results show that the minimum fluidization mass velocity is influenced by the presence of a promoter, thus giving relatively higher values in a promoted bed as compared to the unpromoted ones for identical operating parameters.