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Dynamic Flow Behavior Measurements in Gas-Solid Fluidized Beds Using Different Non-Intrusive Techniques and Polyethylene Powder

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Dynamic Flow Behavior Measurements in Gas-Solid Fluidized Beds Using Different Non-Intrusive Techniques and Polyethylene Powder 2016-10-25T11:54:32+00:00

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Dynamic Flow Behavior Measurements in Gas-Solid Fluidized Beds Using Different Non-Intrusive Techniques and Polyethylene Powder

Wu, B., Yu, G., Bellehumeur, C. and Kantzas, A.

DOI: 10.1063/1.2747508
Multiphase Flow: The Ultimate Measurement Challenge, Proceedings 5th ISMTMF / IWPT-2, Macau, China December 10-13, 2006;
AIP Conf. Proc. 914, 746 (2007) Dec 2006;
Flow Measurement and Instrumentation, 18, 2007, Pages 197-203

ABSTRACT

Pressure fluctuations and X‐ray computed tomography (CT) measurements were utilized to characterize the flow behavior of gas‐solid fluidized beds using polyethylene particles in three Plexiglas columns with diameters of 10cm, 20cm, and 30cm. Air was used as the gas phase. Gas‐solids flow dynamic under ambient conditions was characterized from statistical analysis of pressure fluctuation data and CT images. The time‐averaged voidage distribution, bubble phase area fraction, bubble diameter and bubble number distribution varying with the bed heights were extracted from all the three columns. Bed scales had significant effect on the hydrodynamics. Scale up effects on the gas‐solids two‐phase flow behavior were discussed.

A full version of this paper is available on AIP Scitation Online.

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