FLOODING AND CRITICAL IMPELLER SPEED FOR GAS DISPERSION IN AERATED TURBINE-AGITATED VESSELS

被引：16

作者：

LU, WM

CHEN, H

机构：

[1] Natl Taiwan Univ, Taipei, Taiwan, Natl Taiwan Univ, Taipei, Taiwan

来源：

CHEMICAL ENGINEERING JOURNAL AND THE BIOCHEMICAL ENGINEERING JOURNAL | 1986年 / 33卷 / 02期

关键词：

AERATED TURBINE-AGITATED VESSELS - CRITICAL IMPELLER SPEED - FLOODING - GAS DISPERSION - SCALE-UP;

D O I：

10.1016/0300-9467(86)80034-X

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The flooding phenomenon in aerated turbine-agitated vessels was studied. A method for determining the onset of flooding from turbulence measurements with a hot-film anemometer was developed and proved applicable to air-water systems. The following correlation between the critical impeller speed N//F, impeller diameter D and gas flow rate Q according to the definition of flooding by J. H. Rushton et al. was obtained: N//FD**1**. **8/Q**0**. **3 equals 0. 54. This correlation can be used to determine the lower limit of operation when designing or scaling-up an aerated agitated vessel.

引用

页码：57 / 62

页数：6

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