On the Bed Collapse Technique for Measuring Dense Phase Voidage of a Gas Fluidized Bed

金涌; 俞芷青; P.N.Rowe D.J.Cheesman

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On the Bed Collapse Technique for Measuring Dense Phase Voidage of a Gas Fluidized Bed

更新时间：2025-12-16

- On the Bed Collapse Technique for Measuring Dense Phase Voidage of a Gas Fluidized Bed
- CIESC Journal Issue 2, (1988)
- 作者机构：
  
  清华大学化工系,清华大学化工系,伦敦大学U,C,L 化学工程与生化工程系
- 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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金涌, 俞芷青, P.N.Rowe D.J.Cheesman. On the Bed Collapse Technique for Measuring Dense Phase Voidage of a Gas Fluidized Bed[J]. CIESC Journal, 1988, (2).
DOI：

金涌, 俞芷青, P.N.Rowe D.J.Cheesman. On the Bed Collapse Technique for Measuring Dense Phase Voidage of a Gas Fluidized Bed[J]. CIESC Journal, 1988, (2). DOI：

摘要

采用切断流化床气源

并跟踪测量床面塌落速度的方法

可以测得浓相空隙率.当分布板下方气体预分布空间(简称风箱)中

多余的气体必须通过床层排放时

往往就做不到骤然切断气流

本文对这一问题造成的影响进行了实验检验.

Abstract

Dense phase voidage can be estimated by cutting gas flow and following the rate of bed collapse. Abrupt cessation of flow is not possible when excess gas in the wind box can only discharge through the bed. The magnitude of this problem is examined experimentally.

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