FORCE BALANCE MODEL OF THE SPOUTED BED FOR NON-DARCY FLOW IN THE ANNULUS

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概要

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• Instead of using Darcy’s law, we have adopted Ergun’s Equation, dP/dz = K1Ua + K2Ua2, for the force balance model proposed by Mamuro et al. The equations we derived give the general expression of the longitudinal distributions of fluid velocity and pressure in the annulus, and of the maximum ratio of spouting to fluidizing pressure drop.Calculated results show that there is no remarkable difference in the longitudinal distribution of fluid velocity in the annulus, even if the form of Ergun’s equation changes between its two extremes, –dP/dz = K1Ua and –dP/dz = K2Ua2. On the other hand, the longitudinal pressure distribution and the maximum ratio of spouting to fluidizing pressure drop change significantly. The maximum ratio of spouting to fluidizing pressure drop changes in the range from 0.75 to 0.63.

• 社団法人 化学工学会の論文
• 1992-12-01

著者

• MATSUSE Takehiro

  Department of Fine Materials Engineering, Faculty of Textile Science and Technology, Shinshu Univers

• Hattori H

  Shinshu Univ. Ueda Jpn

• Hattori Hirotsugu

  Department Of Fine Material Engineering Faculty Of Textile Science And Technology

• Matsuse T

  Shinshu Univ. Ueda

• Matsuse Takehiro

  Department Of Fine Material Engineering Faculty Of Textile Science And Technology Shinshu University

• FUKUHARA Keiji

  Department of Fine Material Engineering, Faculty of Textile Science and Technology, Shinshu University

• HATTORI HIROTSUGU

  Department of Chemical Engineering, Shinshu University

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