Measurement and Prediction of Interfacial Area on a DistiIlation Tray

作     者：宋海华 李天一 李红海 

作者机构：ChemicalEngineeringResearchCenterTianjinUniversity 

出 版 物：《Transactions of Tianjin University》 (天津大学学报（英文版）)

年 卷 期：2003年第9卷第1期

页      面：29-34页

学科分类：080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0801[工学-力学（可授工学、理学学位）] 

基　　金：SupportedbyNationalNaturalScienceFoundationofChina(No . 2 94762 55) 

主　　题：bubble size distribution interfacial area multiphase turbulent dynamics computer aided image analysis distillation tray 

摘      要：In this paper the modern electron optical equipment is used to translate the clear image of speed moving bubbles in bubbling liquid on a sieve tray into the digital information stored in computer, and the computer aided image processing technique is utilized to measure the bubble size distributions and interfacial areas under various operating conditions. And the dynamic behavior of bubbles in turbulent liquid is analyzed theoretically; the mechanism of bubble deformation and breakage is explored on the basis of Kolmogoroff′s isotropic turbulence hypothesis; the mathematical model for predicting the gas liquid interfacial area is proposed. The comparison between the simulated results and the experimental data shows that the model is higher in accuracy, simple in form and convenient in use.