HYDRODYNAMICS AND STABILITY OF SLOT-RECTANGULAR SPOUTED BEDS PART II: INCREASING BED THICKNESS |
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| Authors: | L A P Freitas O M Dogan C J Lim J R Grace B Luo |
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| Affiliation: |
a Department of Pharmaceutical Sciences, Laboratory of Industrial Physics, University of Sao Paulo, Ribeirao Preto, SP, Brazil
b Department of Chemical Engineering, Gazi University, Maltepe, Ankara, Turkey
c Department of Chemical and Bio-Resource Engineering, University of British Columbia, Vancouver, Ankara, Canada. |
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| Abstract: | Tests were carried out with rectangular spouted bed columns of different thickness, i.e., front-to-back dimension, while holding the column width and air-entry slot width constant, to investigate the effects on spoul stability and bed hydrodynamics. For the three sizes of glass beads and one size of polyethylene beads examined, increasing the column thickness led to three-dimensional effects, such as formation of multiple spouts, and affected such hydrodynamics variables as the minimum spouting velocity, maximum spoutable bed depth and maximum pressure drop. |
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| Keywords: | Spouted bed Scale-up Hydrodynamics Flow regimes |
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