Bottom Pressure Method for the Determination of the Flooding/Loading Transition in an Aerated Vessel Stirred by a Rushton Impeller

被引：2

作者：

Liu, Baoqing ^{[1
]}

Fan, Fangyi ^{[1
]}

Cheng, Ruijia ^{[1
]}

Xu, Zilong ^{[1
]}

Zheng, Yijun ^{[1
]}

Jin, Zhijiang ^{[1
]}

机构：

[1] Zhejiang Univ, Coll Energy Engn, Hangzhou 310027, Zhejiang, Peoples R China

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2017年 / 56卷 / 41期

基金：

中国国家自然科学基金;

关键词：

GAS-LIQUID CONTACTORS; VOID FRACTION DISTRIBUTION; FILLED CAVITY STRUCTURES; TANK; DISPERSION; TURBINES; HOLDUP;

D O I：

10.1021/acs.iecr.7b01625

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A novel method to determine the flooding/loading transition point (N-f) was proposed based on the measurements of the bottom pressure. Experiments were carried out in an aerated vessel stirred with a Rushton impeller in single-phase and two-phase systems. The results showed that the bottom pressure (P) in the single-phase system had a parabolic decrease with the increasing impeller speed (N), which followed the Bernoulli Effect; the flooding/loading transition was defined by a sharp change in the P-N curve. The data were well consistent with the results obtained by the global gas holdup method, as well as the existing literature data on flooding/loading transition.

引用

页码：11977 / 11982

页数：6

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