The Criterion of Transition from Fast Fluidization to Pneumatic Transport

毕晓涛; 金涌; 蒋大洲

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The Criterion of Transition from Fast Fluidization to Pneumatic Transport

更新时间：2025-12-16

- The Criterion of Transition from Fast Fluidization to Pneumatic Transport
- CIESC Journal Issue 5, (1990)
- 作者机构：
  
  清华大学化工系,清华大学化工系,清华大学化工系 ,北京,北京,北京
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 October 1990，
  
  Published：25 October 1990
- 稿件说明：
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毕晓涛, 金涌, 蒋大洲. The Criterion of Transition from Fast Fluidization to Pneumatic Transport[J]. CIESC Journal, 1990, (5).
DOI：

毕晓涛, 金涌, 蒋大洲. The Criterion of Transition from Fast Fluidization to Pneumatic Transport[J]. CIESC Journal, 1990, (5). DOI：

摘要

关于操作条件介于湍动流态化和稀相输送之间的快速流态化定义域的研究具有重要意义

这需要首先确定湍动流态化向快速流态化转变和快速流态化向稀相输送转变的流型转变速度.湍动流态化向快速流态化的转变具有较明显的特征

比较容易判别.与之相比

快速流态化向稀相输送的转变过程较难判断

且由于各研究者对其认识上的不一致

使得不同判别法所得结果之间存在较大差异.

Abstract

Analysis of heat transfer coefficient in fluidized bed

gives the critical velocity of transition from fast fluidization to pneumatic transport. For four kinds of particles the transition velocity upt can be correlated asfollows:

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