A Stochastic Model of Bubble Size Distribution in a Three-phase Fluidized Bed

张立国; 胡宗定; 王一平

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A Stochastic Model of Bubble Size Distribution in a Three-phase Fluidized Bed

更新时间：2025-12-16

- A Stochastic Model of Bubble Size Distribution in a Three-phase Fluidized Bed
- CIESC Journal Issue 5, (1990)
- 作者机构：
  
  天津大学化工系,天津大学化工系,天津大学化工系 ,天津,天津,天津
- 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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张立国, 胡宗定, 王一平. A Stochastic Model of Bubble Size Distribution in a Three-phase Fluidized Bed[J]. CIESC Journal, 1990, (5).
DOI：

张立国, 胡宗定, 王一平. A Stochastic Model of Bubble Size Distribution in a Three-phase Fluidized Bed[J]. CIESC Journal, 1990, (5). DOI：

摘要

本文利用马尔柯夫过程理论

建立了一个包括气泡上升速率、气泡大小以及气泡在床内出现位置的随机模型.利用热力学理论分析了模型参数.同时

本文利用四组元组合电导探针测定了气泡大小及其分布密度

验证了随机模型.结果表明

模型值与实验拟合很好.

Abstract

In this paper

the theory of Markov chain is used to discuss the behavior of bubbles in G-L-S fluidized bed. A generalized stochastic model is proposed. On the basis oi thermodynamics

the model parameters were analysed and discussed to obtain a simplified stochastic model of bubble size distribution. In addition

the distribution of bubble size in a twodimensional G-L-S three-phase fluidized bed were measured by using conductivity probe method and micro-computer sampling technique. The calculated values with the stochastic model were very close to the experimental data.

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