Determination of fluidization quality of beds of spherical particles

S.C. Saxena and N.S. Rao

Energy, 1991, vol. 16, issue 9, 1199-1206

Abstract: In a continuing effort to develop a regime delineation scheme and diagnostic tools to predict the quality of bed fluidization, experimental data have been taken for beds of three different sizes of spherical glass beads at ambient operating conditions. The bed is 0.153 m square and average diameters of the bed materials are 1260, 2093, and 3243 μm. A heat-transfer thermocouple and a pressure-measuring transducer probe were employed to record temperature- and pressure-fluctuation data as functions of time. These have been successfully utilized to obtain bubble or emulsion phase frequencies visiting the probe sites and hence the hydrodynamic activity in the bed interior and on its wall. It is also shown that the gross bed voidage data are somewhat inadequate for regime delineation, whereas local heat-transfer coefficient data are good indicators of the bed-fluidization quality.

Date: 1991
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:16:y:1991:i:9:p:1199-1206

DOI: 10.1016/0360-5442(91)90053-O

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