A Study of Local Holdups and Liquid Velocities in a Large Diameter Three-Phase Fluidized Bed

Hu Tsungting and Yu Baotian(Tianjin University; Tianjin)

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A Study of Local Holdups and Liquid Velocities in a Large Diameter Three-Phase Fluidized Bed

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- A Study of Local Holdups and Liquid Velocities in a Large Diameter Three-Phase Fluidized Bed
- CIESC Journal Issue 2, (1988)
- 作者机构：
  
  天津大学化工系,天津大学化工系
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 April 1988，
  
  Published：25 April 1988
- 稿件说明：
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Hu Tsungting and Yu Baotian(Tianjin University, Tianjin). A Study of Local Holdups and Liquid Velocities in a Large Diameter Three-Phase Fluidized Bed[J]. CIESC Journal, 1988, (2).
DOI：

Hu Tsungting and Yu Baotian(Tianjin University, Tianjin). A Study of Local Holdups and Liquid Velocities in a Large Diameter Three-Phase Fluidized Bed[J]. CIESC Journal, 1988, (2). DOI：

摘要

本文对大直径三相流化床的局部气含率(?)固含率及液体缝隙速度进行了测定

并结合小直径床的数据作了系统的分析.结果表明

局部气含率基本符合抛物线分布;局部固含率可以由方程式(7)来表示;利用本文修正的液体循环流模型能够合理地描述液速分布.

Abstract

Radial profiles of local gas and solid holdups and liquid interstitial velocities are measured in a large-diameter three-phase fluidized bed

and systematic studies are based on a comparison with data obtained in small-diame-ter fluidized beds. It is shown that radial profiles of gas holdup conform to the parabolic form equation. The distributions of solid particles holdup may be expressed by Eq. (7).Liquid velocities are well described by the modified circulating flow model.

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