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An experimental investigation of burning rate and mass transfer in a turbulent fluidized bed

✍ Scribed by P. Basu; D. Subbarao

Publisher: Elsevier Science
Year: 1986
Tongue: English
Weight: 558 KB
Volume: 66
Category: Article
ISSN: 0010-2180
DOI: 10.1016/0010-2180(86)90139-2

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✦ Synopsis

Burning rates of carbon spheres are measured in a 102 mm diameter bed fluidized in the turbulent regime. Results suggest carbon burns much faster than in a bubbling fluidized bed operating under otherwise similar conditions-excepting velocity. The enhanced burning rate is attributed to high mass transfer rates in a turbulent fluidized bed. This indirect observation of high mass transfer rate in turbulent fluidized beds is confirmed by a series of mass transfer (sublimation of naphthalene) experiments in the same bed. For the prediction of mass transfer in turbulent fluidized beds, a correlation of the Sherwood number is proposed. It shows a fair agreement with experimental data.

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