An illustration of Nicklin's conclusions for two-phase flow is given, and application of these conclusions is made to the two-phase theory of fluidised beds. Some expressions previously derived for fluidised beds are believed now to require reconsideration.
Modifications in bubbly flow on antifoam addition
โ Scribed by Stanley Y. Hobbs; Charles F. Pratt
- Publisher
- American Institute of Chemical Engineers
- Year
- 1974
- Tongue
- English
- Weight
- 341 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0001-1541
No coin nor oath required. For personal study only.
โฆ Synopsis
Modifications in Bubbly Flow on Antifoam Addition
In a recent series of investigations we have used fritted glass bubbling tubes to evaluate various defoaming agents in aqueous systems. We have found that these antifoams can radically modify the flow regime in the bubbling liquid even when no additional surfactants are present.
These observations are important in elucidating the mechanism of antifoam action as well as in extending data collected on small frit tubes to larger scale sieve trays.
๐ SIMILAR VOLUMES
It follows that FwN(l; Da/N) decreases monotonically as N increases. In fact we see in the liit as N + co, FeN(l; Da/N) tends from above to the limit of the x that satisfies j: dy/p(y) =Da, since the sequence ~>x~>...>x,>\*-+> xN > x is a valid partition of the interval (x, 1) in defining the Rieman