Comparison of particle velocity measurement techniques in a fluidized bed operating in the square-nosed slugging flow regime

Tebianian, S, Dubrawski, K, Ellis, N, Cocco, RA, Hays, R, Reddy Karri, SB, Leadbeater, TW, Parker, DJ, Chaouki, J, Jafary, R, Garcia Trinanes, P, Seville, JPK and Grace, JR (2015) Comparison of particle velocity measurement techniques in a fluidized bed operating in the square-nosed slugging flow regime Powder Technology.

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Abstract

The novel “travelling fluidized bed” (TFB), operated under identical conditions, was deployed to compare alternate experimental measurement techniques for the investigation of solid motion in gas-fluidized beds operating in the square-nosed slugging regime. Measurements of particle velocity obtained by radioactive particle tracking (RPT – non-invasive at the Ecole Polytechnique de Montréal), positron emission particle tracking (PEPT – non-invasive at University of Birmingham), optical fibre probes (invasive at UBC) and borescopic high speed particle image velocimetry (invasive at PSRI) are compared for sand particles of mean diameter 292 μm. Significant differences between the time-average radial profiles of particle velocity are observed in many cases. The results provide valuable insights on the merits and challenges of advanced particle velocity measurement techniques.© 2015 Elsevier B.V. All rights reserved.

Item Type:	Article
Authors :	Name Email ORCID Tebianian, S UNSPECIFIED UNSPECIFIED Dubrawski, K UNSPECIFIED UNSPECIFIED Ellis, N UNSPECIFIED UNSPECIFIED Cocco, RA UNSPECIFIED UNSPECIFIED Hays, R UNSPECIFIED UNSPECIFIED Reddy Karri, SB UNSPECIFIED UNSPECIFIED Leadbeater, TW UNSPECIFIED UNSPECIFIED Parker, DJ UNSPECIFIED UNSPECIFIED Chaouki, J UNSPECIFIED UNSPECIFIED Jafary, R UNSPECIFIED UNSPECIFIED Garcia Trinanes, P p.garcia@surrey.ac.uk UNSPECIFIED Seville, JPK j.p.k.seville@surrey.ac.uk UNSPECIFIED Grace, JR UNSPECIFIED UNSPECIFIED
Date :	21 August 2015
Identification Number :	https://doi.org/10.1016/j.powtec.2015.08.040
Contributors :	Contribution Name Email ORCID UNSPECIFIED Fan, LS UNSPECIFIED UNSPECIFIED
Uncontrolled Keywords :	Fluidization, Square-nosed slugging, Particle velocity, Optical probes, RPT, PEPT, Borescopy
Depositing User :	Symplectic Elements
Date Deposited :	17 May 2017 10:35
Last Modified :	17 May 2017 14:50
URI:	http://epubs.surrey.ac.uk/id/eprint/828364

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