Measurements of bubble velocltles m freely bubbhng beds have shown that the veloclhes of mdlvldual bubbles are mfluenced more markedly by the dlsposltlon of surroundmg bubbles than by the slze of the mdlvldual bubble ltself Bubbles present m high concentratlons nse at much greater velocItIes than Is
The expansion of gas-fluidised beds in bubbling fluidisation
โ Scribed by D.J. Gunn; N. Hilal
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 729 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0009-2509
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๐ SIMILAR VOLUMES
## Shorter Communications characteristic time of the fluid Greek symbols natural time of the fluid radial, angular and axial component of the % velocity, respectively second invariant of the rate of deformation tensor
Based on the observed pattern of coalescence of bubble pairs in vertical alignment in a two-dimensional bed, a theory is developed which describes how bubble size and frequency changes with height in a gas fluidised bed. It is confirmed by comparison with the reported data from 10 separate investiga
It is shown that existing data on bubble size (when this is not restricted by the vessel dimensions) can be described by ,,f)"Z(h t h$"/g I", \* 5.2 \* 3.0 \* 2.3 f 0.6 \* 0.8 \* 0.8 \* 0.8 \* 0.3