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Identification of Flow Regimes in Slot‐Rectangular Spouted Beds using Pressure Fluctuations
Author(s) -
Freitas Luis A. P.,
Dogan Ozkan M.,
Lim C. Jim,
Grace John R.,
Bai Dingrong
Publication year - 2004
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450820108
Subject(s) - mechanics , flow (mathematics) , chaotic , volumetric flow rate , pressure gradient , statistical analysis , materials science , physics , mathematics , computer science , statistics , artificial intelligence
Pressure fluctuation data recorded in slot‐rectangular spouted beds of 1.44 mm diameter glass beads were analyzed with the aid of statistical and chaotic tools. The column width was maintained at 150 mm, while the thickness and slot width were both varied. It is shown that there are significant shifts in both statistical and chaos measures as the gas flow rate is increased. The results suggest that pressure fluctuations can be used to provide diagnostics of flow regime transitions in spouted beds when viewing is impossible.