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| Titel: |
A MONTE-CARLO APPROACH TO THE INTERPRETATION OF BUBBLE PROBE SIGNALS IN FREELY BUBBLING FLUID BEDS†|
| Auteur: |
Masson, H. |
| Verschenen in: |
Chemical engineering communications |
| Paginering: | Jaargang 21 (1983) nr. 4-6 pagina's 311-328 |
| Jaar: |
1983-06-01 |
| Inhoud: |
The interpretation of the signals generated by a double probe may be done by the three characteristic times method: t1 the time duration of the pulses; t2 the time shift between the signals of the two probes; t3 the time interval between two pulses on one channel. Each of these times is largely dispersed and the corresponding histograms may be constructed. The present work is a trial to go over from the time histograms to physical properties of the bubbles combining a Monte-Carlo simulation and a flexible simplex optimisation procedure. As a result, the percentage of oblique bubbles cutting just one level, the bubble size distribution, the average velocity-size relation, and the individual dispersion around it may be defined. The procedure is finally applied to experimental results obtained with a light probe in a fluid bed of glass beads. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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