## Abstract The local instantaneous and timeβaverage suspension densities were determined in a 76 mm diameter by 3 m tall liquidβsolids circulating fluidized bed riser using a fibreβoptic probe. Attempts were made to qualify the microflow structure through statistical analysis of the local bed void
Microstructural aspects of the behaviour of circulating fluidized beds
β Scribed by C.M.H. Brereton; J.R. Grace
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 564 KB
- Volume
- 48
- Category
- Article
- ISSN
- 0009-2509
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β¦ Synopsis
Ahsmct--Local instantaneous and tiime-averaging suspension densities were determined in a K2mm &meter by 9.3 m tall circulating fluidiaed-bed riser using anedlc cawtitanat pmbt ihstrtcd fiorn the side. Radial profile wete obtainad at three different heighls and for thw di&rent solids circulation fluxes for sand particles 01 mean diameter 148 pn. The results confinn that &Cal densities a~ vtec
π SIMILAR VOLUMES
## Computation of Flow Patterns in Circulating Fluidized Beds Flow regimes of dense-phase vertical pneumatic transport of solids, referred to in the literature as circulating fluidized beds, have been computed using a generalization of the Navier-Stokes equations for two fluids. In the less dense
The intermittent flow in a circulating fluidized bed is shown to possess a multifractal character. The voidage signals at different solids concentrations and radial positions are characterized by defining an intermittency measure selected from a hierarchy of multifractal exponents. The intermittency