Behavior of bubbles in a semi-cylindrical gas-solid fluidized bed.
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概要
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A semicylindrical fluidized bed of 15 cm diameter with a transparent flat wall was employed to observe bubbles visually. The bed was operated in a range of (UG-Umf) from 8 to 35cm/s, showing the bubbling and slugging regimes. No effect of particle size on bubble size was observed for different sands of 75 to 521 μm in average diameter, where the different sands were compared at the same (UG-Umf) value. The expressions for bubble growth in bubbling three-dimensional beds by Darton et al. and by Mori and Wen were found to be applicable to the semi-cylindrical fluidized bed operating in these regimes. The absolute bubble rise velocity under the present conditions was found to be well represented by the expression of Allahwala et al. developed for three-dimensional beds.
- 公益社団法人 化学工学会の論文
著者
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HATATE Yasuo
Department of Applied Chemistry and Chemical Engineering
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King Desmond
Department of Chemical Engineering, Kagoshima University
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IKARI ATSUSHI
Department of Chemical Engineering, Kagoshima University
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MIGITA MITSUNOBU
Department of Chemical Engineering, Kagoshima University
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