Parameters affecting fluid dispersion in a continuous oscillatory baffled tube

Citation
Xw. Ni et Ne. Pereira, Parameters affecting fluid dispersion in a continuous oscillatory baffled tube, AICHE J, 46(1), 2000, pp. 37-45
Citations number
28
Categorie Soggetti
Chemical Engineering
Journal title
AICHE JOURNAL
ISSN journal
00011541 → ACNP
Volume
46
Issue
1
Year of publication
2000
Pages
37 - 45
Database
ISI
SICI code
0001-1541(200001)46:1<37:PAFDIA>2.0.ZU;2-J
Abstract
Experimental measurements on the axial dispersion of fluid in an oscillator y baffled tube that is operated continuously were studied. Two models, the continuous stirred tank with feedback and the plug flow with axial dispersi on, were used to analyze the residence-time distributions and determine the axial dispersion for this system. The effect of the density of tracer solu tion, the tracer injection position, and the tracer injection time on the a xial dispersion was explored It was found that the axial dispersion was sen sitive to the changes in the density of tracer solution, but insensitive to the tracer injection position and injection time. A correlation linking th e axial dispersion with the energy dissipation in the system bath in the ab sence and presence of fluid oscillation was established. The Isotropic Turb ulence Theory was applied and for the first time the mixing length in the s ystem was evaluated and compared with that of other devices.