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Fluid Mechanics and Transport Phenomena
A multi-scale theoretical model for gas–Liquid interface mass transfer based on the wide spectrum eddy contact concept
Article first published online: 16 JUN 2010
DOI: 10.1002/aic.12327
Copyright © 2010 American Institute of Chemical Engineers (AIChE)
Additional Information
How to Cite
Han, L., Luo, H., Liu, Y., You, K. and Liu, P. (2011), A multi-scale theoretical model for gas–Liquid interface mass transfer based on the wide spectrum eddy contact concept. AIChE J., 57: 886–896. doi: 10.1002/aic.12327
Publication History
- Issue published online: 10 MAR 2011
- Article first published online: 16 JUN 2010
- Manuscript Revised: 4 JUN 2010
- Manuscript Received: 30 MAR 2009
Funded by
- National Natural Science Foundation of China. Grant Number: 20776121
- Scientific Fund of Hunan Provincial Education Department. Grant Number: 07C765
- Abstract
- Article
- References
- Cited By
Keywords:
- mass transfer;
- eddy contact;
- interface;
- gas–liquid;
- breakup
Abstract
On the basis of the wide spectrum eddy contact concept and the isotropic turbulence theory, a multi-scale theoretical model for the prediction of liquid-side mass transfer coefficient in gas–liquid system was developed. The model was derived from an unsteady-state convection and diffusion equation and considered the contributions of eddies with different sizes to the overall mass transfer coefficient. The proper contact time distribution at the surface is need to be determined to obtain satisfactory results with this model. Moreover, a simplified model was also proposed based on the assumption of steady-state mass transfer mechanism for single eddy. The results predicted by this model showed a very good agreement with the available experimental data in a comparatively wide range of turbulence intensities. © 2010 American Institute of Chemical Engineers AIChE J, 2011