Breakage and coalescence of drops in a batch stirred vessel—II comparison of model and experiments
✍ Scribed by H. Sovová
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 717 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0009-2509
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✦ Synopsis
The model of dispersion proposed by Coulaloglou and Tavlarides is compared with published results from experiments in hatch stirred tanks. An alternative to this model is developed by introducing a different formula for the efficiency of collisions-the mechanism of coalescence of drops by film drainage is replaced by a mechanism based on the effect of collision impact. Good agreement of the modified mode1 with experimental data is demonstrated and the values of the respective parameters are determined.
📜 SIMILAR VOLUMES
Using the theoretical procedure outlined in the first part of this work, breakage and coalescence rates were determined experimentally in a stirred tank. After reaching steady-state conditions, the intensity of agitation was suddenly changed and the variation in drop size distribution with time was
Droplet coalescence and breakage rates in a pulsed-plate extraction column have been measured using the colorimetric method of Hamilton and Pratt (1980). The results were interpreted in terms of rate constants, defined appropriately for the mixer-settler and emulsion regions of operation respectivel