Experimental Flow Measurements of a Spouted Bed Using Pressure Transducers and X-Ray CT Scanner

Wu, B., Orta, A. and Kantzas, A.

DOI: 10.1515/1542-6580.2522 ; ISSN: 1542-6580
International Journal of Chemical Reactor Engineering, 9(01)
April 2011
Pages A32


Flow behaviour of an air-glass bead spouted bed (20 cm diameter, 1.31 m high) was investigated using wall pressure fluctuation measurements and X-ray Computed Tomography (CT) scanning. Spout shape, spout dimension, fountain shape and fountain height were visualized from CT images. Statistical and spectral analyses were applied to pressure fluctuation series measured along the column wall. Local and global gas-solids flow dynamics were compared. Gas velocity greatly affects hydrodynamics of the spout bed. A stable spouting regime was identified. This study enhances the understanding of gas-solid flow patterns and provides detail hydrodynamics for further modelling work.

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