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Measurements of local flow structures of conical spouted beds by optical fibre probes

✍ Scribed by Zhiguo Wang; Hsiaotao T. Bi; C. Jim Lim

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
267 KB
Volume
87
Category
Article
ISSN
0008-4034

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✦ Synopsis

Abstract

A new calibration set‐up was designed and assembled, and a comprehensive sensitivity analysis was conducted to investigate factors that may affect the calibration of the effective distance of an optical fibre particle velocity probe. It is shown that the glass window has the most significant impact on the calibration result.

The optical fibre probe was then applied to measure local particle velocities and solid fractions inside a half and a full circular conical spouted bed. It is found that the overall particle velocity profiles, as well as the shapes of the spout and fountain are quite similar in both columns.

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Hydrodynamics of slot-rectangular spoute
Hydrodynamics of slot-rectangular spouted beds: Effect of slot configuration on the local flow structure
✍ Z. Chen; C. J. Lim; J. R. Grace 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 295 KB

## Abstract The local flow structure in a slot‐rectangular spouted bed column of 300 mm × 100 mm cross‐section was investigated with slots of equal area but different length‐to‐width ratios. Dead‐zones, spout shapes, and distributions of pressure, particle velocity, and voidage were explored. The l