| Title |
Semi-Empirical Analysis of the Mass Transfer Characteristics of the Slug Flow in Vertical Mesoscale Tubes |
| DOI |
http://dx.doi.org/10.6110/KJACR.2014.26.8.366 |
| Keywords |
슬러그 유동 ; 관경 ; 물질전달 ; 침투이론 ; 파동층류 Slug flow ; Tube diameter ; Mass transfer ; Penetration theory ; Wavy-laminar flow |
| Abstract |
Experimental mass transfer data, which were obtained for the CO2-water slug flows in vertical tubes with 2, 5, and 8mm diameters, were analyzed in comparison with the penetration theory. It was found that a penetration model with molecular diffusion coefficient cannot predict the experimental data accurately. An effective diffusion coefficient, which considers enhancement effect of interfacial waves, was suggested to improve prediction. Another empirical factor was also suggested to consider the effect of non-uniform interface velocity. A modified penetration model was found to be capable of predicting the experimental data reasonably well. |