## Measurements of the visible bubble flow rate and the through-flow velocity of gas inside bubbles were made in a pressurized fluid&d bed, using capacitance and Pitot-static pressure probes, respectively. The influence of pressure and fluidiition velocity on the bubble behaviour and gas Row distr
A bubble model describing the influence of internals on gas fluidization
โ Scribed by R. Samson; C.E. Brakel; A.M. Scott; K. Chandrasekharan; P. Veenstra
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 477 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0009-2509
No coin nor oath required. For personal study only.
โฆ Synopsis
Pipes, baffles, perforated
plates.
๐ SIMILAR VOLUMES
## AbstracbIn gas-fluidized beds bubbling starts when the voids formed by the oscillating bottom layer of the bed exceed a minimal size. The so-called vibration criterion derived predicts the porosity at the bubble point in close agreement with the experimental data. Comparison of the other criter
A semi-empirical model which describes the influence of observed voidage variations on gas and particle flows associated with a fluidization bubble is described. It is shown that the effects are very slight so that the incompressible assumption used in Davidson's (1961) model is justified.
The aim of this study was to develop a practically usable model to describe the influence of mcreased gas density on the gas holdup m bubble column reactors. In order to develop an insIght into this effect, we performed extensive sets of experiments at pressures ranging from 0.1 MPa to 2 MPa and wit