Hydrodynamics of a Circulating Fluidized Bed with a Bubbling Bed Section Separated by an Inner Rim Baffle
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概要
- 論文の詳細を見る
The hydrodynamics of a circulating fluidized bed with a bubbling bed section separated by an inner rim baffle are examined both by experiment and mathematical analysis. To maintain sufficient solids holdup in the upper section, the inner rim baffle was set up in the middle of the riser. It is found that the solids holdup in the section above the baffle is greatly increased. Investigation into the baffle dimensions shows that the variation of the baffle clearance has little effect on the solids holdup in the upper section when the clearance is greater than a certain value, whereas the variation of the baffle height has a significant effect on the solids holdup in the upper section, i.e. the lower the baffle height, the higher solids holdup. A hydrodynamic model is developed based on the mass balance and the pressure balance of the solids circulation loop. With respect to gas-solids flow behavior in the upper section, the clustering suspension and the core-annulus flow are taken into account; for the lower section, a bubbling fluidized bed model is included. By comparing the calculated results with the experimental ones, the model is found to predict fairly well the gas-solids flow behavior of the compact bubbling-circulating fluidized bed.
- 社団法人 化学工学会の論文
著者
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Horio Masayuki
Department Of Chemical Engineering Graduate School Of Bio-applications And Systems Engineering (base
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LEI HONGWEI
Department of Chemical Engineering, Tokyo University of Agriculture and Technology
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TSUJI Kazushige
Department of Chemical Engineering, Tokyo University of Agriculture and Technology
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ITO Munechika
Department of Chemical Engineering, Tokyo University of Agriculture and Technology
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Lei Hongwei
Department Of Chemical Engineering Tokyo University Of Agriculture And Technology
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Tsuji Kazushige
Department Of Chemical Engineering Tokyo University Of Agriculture And Technology
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Ito Munechika
Department Of Chemical Engineering Tokyo University Of Agriculture And Technology
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Tsujii Kazushige
Department of Chemical Engineering, Tokyo University of Agriculture and Technology
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Horio Masayuki
Department of Applied Chemistry for Resources, Tokyo University of Agriculture and Technology
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