On the measurement of local gas hold-up and interfacial area in gas-liquid contactors via light sheet and image analysis

被引：19

作者：

Busciglio, A. ^{[1
]}

Grisafi, F. ^{[1
]}

Scargiali, F. ^{[1
]}

Brucato, A. ^{[1
]}

机构：

[1] Univ Palermo, Dipartimento Ingn Chim Proc & Mat, I-90128 Palermo, Italy

来源：

CHEMICAL ENGINEERING SCIENCE | 2010年 / 65卷 / 12期

关键词：

Mixing; Mathematical modelling; Multiphase flow; Local gas hold-up; Specific interfacial area; Imaging; BUBBLE-SIZE DISTRIBUTIONS; MASS-TRANSFER COEFFICIENTS; VOID FRACTION DISTRIBUTION; CHORD-LENGTH DISTRIBUTIONS; FILLED CAVITY STRUCTURES; STIRRED VESSEL; IMPELLER REGION; PARTICLE-SIZE; AGITATED VESSEL; RUSHTON TURBINE;

D O I：

10.1016/j.ces.2010.03.004

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Particle image velocimetry techniques coupled with advanced image processing tools are receiving an increasing interest for measuring flow quantities and local bubble-size distributions in gas-liquid contractors. Aim of this work is that of providing a numerical procedure able to reconstruct local gas hold-up and specific interfacial area from images obtained by laser sheet illumination. A correction for measured quantities accounting for laser sheet thickness is proposed and tested by means of Monte Carlo simulations. The algorithms proposed are robust and independent of any measured parameters of the actual bubble size distribution. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：3699 / 3708

页数：10

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