MODELING OF VERTICAL DOWNWARD GAS-LIQUID FLOW FOR THE DESIGN OF A NEW CONTACTOR

被引：11
作者：
ROUSTAN, M
LINE, A
WABLE, O
机构：
[1] INST NATL POLYTECH TOULOUSE,INST MECAN FLUIDES,F-31400 TOULOUSE,FRANCE
[2] LYONNAISE EAUX DUMEZ,F-78230 LE PECQ,FRANCE
来源：
CHEMICAL ENGINEERING SCIENCE | 1992年 / 47卷 / 13-14期
关键词：
2-PHASE DOWNWARD FLOW; MASS TRANSFER; MODELING;
D O I：
10.1016/0009-2509(92)85085-P
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The objective is to improve the efficiency of a new ozone contactor which is composed of a U-tube and in which air and water flow co-currently. The optimization of the contactor lies in a maximum mass transfer between the gas (air+ozone) and the liquid (to be treated), and a minimum of the energy cost. This optimum corresponds to the bubble flow regime. We focus of the hydrodynamic behaviour in the downward flow. We analyze the transition between bubble and slug flow regimes; we present experimental. results on the void fraction and the pressure gradient, carried out in a U-tube, and discuss the two-phase flow modeling aspects of this downward flow, both in bubble and slug flow regimes.
引用
收藏
页码：3681 / 3688
页数：8
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