Fluidization Behavior of Vibrated and Aerated Beds of Starch Powders

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概要

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• Batch experimental work on the fluidization hydrodynamic and entrainment phenomena of cohesive starch powders was studied. Results show that fluidization can be realized as vibration break particleparticle bond in the bed. The higher Umf values compared to predictions indicate the formation of agglomerates in the bed. This has increased the residence time of fines to reduce material loss by entrainment. It was found that using starch powders as feed materials, entrainment was only in the range of 0.5-1.7% of the total fines (should be entrained) in the bed. As has also been found by other workers, the entrainment rate constants of group C decrease as particle size decreases. By adapting the criterion proposed by Rietema (1984) as well as Ma and Kato (1998), it was found in this case that the critical cohesion number, Ncoh* is 19.

• 社団法人 化学工学会の論文

著者

• Anuar Nornizar

  Faculty Of Mechanical Engineering Universiti Teknologi Mara

• TASIRIN Siti

  Department of Chemical and Process Engineering, University Kebangsaan Malaysia

• Tasirin Siti

  Department Of Chemical And Process Engineering University Kebangsaan Malaysia

関連論文

• Fluidization Behavior of Vibrated and Aerated Beds of Starch Powders

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