화학공학소재연구정보센터
Chemical Engineering & Technology, Vol.31, No.2, 208-214, 2008
Prediction of axial mixing for a structured packed column using a two-equation model
A theoretical model based on the recently developed (c(2)) over bar -epsilon(c) two-equation method is proposed to predict the axial mixing behavior in a structured packed column. By solving the proposed. model, the process of tracer injection experiments for determining the axial back-mixing coefficient of structured packing can be simulated. Consequently, the axial Bodenstein number and dispersion coefficient under liquid single-phase or gas-liquid two-phase flow conditions can be calculated. The validation of the proposed method is tested by simulating the two-phase fluid flow behavior in Flexipac 2 structured packing. The simulated results are compared with the experimental data and satisfactory agreement is found between the simulation and the experiments.