Theoretical prediction of the mass transfer coefficients in bubble columnsoperating in churn-turbulent flow regime. Study in Newtonian and non-Newtonian fluids under different operation conditions

Citation
E. Alvarez et al., Theoretical prediction of the mass transfer coefficients in bubble columnsoperating in churn-turbulent flow regime. Study in Newtonian and non-Newtonian fluids under different operation conditions, HEAT MASS T, 37(4-5), 2001, pp. 343-350
Citations number
14
Categorie Soggetti
Mechanical Engineering
Journal title
HEAT AND MASS TRANSFER
ISSN journal
09477411 → ACNP
Volume
37
Issue
4-5
Year of publication
2001
Pages
343 - 350
Database
ISI
SICI code
0947-7411(200107)37:4-5<343:TPOTMT>2.0.ZU;2-1
Abstract
A comprehensive experimental study of the volumetric transfer coefficient k (L)a with Newtonian and non-Newtonian fluids in bubble columns using CO2 as gas phase is the objective of this work. The evaluation of the hydrodynami c characteristics of the bubble columns and delineated the different hydrod ynamic regimes considering column geometry, gas flow, liquid height and typ e of fluid (Newtonian and non-Newtonian) suggest a general applicability of the proposed model. An explanation about of the k(L)a values in non-Newton ian fluid is offered take into account shear rate, column geometry, viscosi ty and results reported in the literature previously.