Investigation of particle velocity in FCC gas-fluidized beds based on different measurement techniques

Sina Tebianian; Kristian Dubrawski; Naoko Ellis; Ray A. Cocco; Roy Hays; S.b. Reddy Karri; Thomas W. Leadbeater; David Parker; Jamal Chaouki; Rouzbeh Jafari; Pablo Garcia-trinanes; Jonathan P.k. Seville; John R. Grace

doi:10.1016/j.ces.2015.01.049

Investigation of particle velocity in FCC gas-fluidized beds based on different measurement techniques

Sina Tebianian, Kristian Dubrawski, Naoko Ellis, Ray A. Cocco, Roy Hays, S.b. Reddy Karri, Thomas W. Leadbeater, David Parker, Jamal Chaouki, Rouzbeh Jafari, Pablo Garcia-trinanes, Jonathan P.k. Seville, John R. Grace

Physics and Astronomy

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31 Citations (Scopus)

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Abstract

The novel traveling fluidization column, designed and built to assure identical operating conditions, was deployed to compare alternate experimental measurement techniques for hydrodynamic characterization of gas-fluidized beds. This paper compares measurements of particle velocity obtained by radioactive particle tracking (RPT—non-invasive at the Ecole Polytechnique), 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) carried out with FCC particles of mean diameter 107 μm. All of the techniques provided similar trends with respect to time-average particle velocity profiles, but significant differences were observed in some cases. Analysis of the results, focusing on the physical principles of each measurement technique, provides valuable insights into the reasons for the observed discrepancies. The results also add to a unique hydrodynamic database for validation of CFD and other mechanistic models.

Original language	English
Pages (from-to)	310-322
Journal	Chemical Engineering Science
Volume	127
Early online date	2 Feb 2015
DOIs	https://doi.org/10.1016/j.ces.2015.01.049
Publication status	Published - 4 May 2015

Keywords

Fluidized beds
Particle velocity
Optical fiber probes
Borescopic PIV
Radioactive particle tracking
Positron emission particle tracking

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10.1016/j.ces.2015.01.049

Tebianian_et_al_Investigation_particle_velocity_Chemical_Engineering_Science_2015
NOTICE: this is the author’s version of a work that was accepted for publication. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published as Sina Tebianian, Kristian Dubrawski, Naoko Ellis, Ray A. Cocco, Roy Hays, S.B. Reddy Karri, Thomas W. Leadbeater, David J. Parker, Jamal Chaouki, Rouzbeh Jafari, Pablo Garcia-Trinanes, Jonathan P.K. Seville, John R. Grace, Investigation of particle velocity in FCC gas-fluidized beds based on different measurement techniques, Chemical Engineering Science, http://dx.doi. org/10.1016/j.ces.2015.01.049
Accepted author manuscript, 1.47 MBLicence: Other (please specify with Rights Statement)

http://linkinghub.elsevier.com/retrieve/pii/S0009250915000780

Platform Grant for the University of Birmingham Positron Imaging Centre
Parker, D., Bakalis, S., Barigou, M., Seville, J. & Fryer, P.
Engineering & Physical Science Research Council
1/01/09 → 31/12/13
Project: Research Councils

Cite this

Tebianian, S., Dubrawski, K., Ellis, N., Cocco, R. A., Hays, R., Reddy Karri, S. B., Leadbeater, T. W., Parker, D., Chaouki, J., Jafari, R., Garcia-trinanes, P., Seville, J. P. K., & Grace, J. R. (2015). Investigation of particle velocity in FCC gas-fluidized beds based on different measurement techniques. Chemical Engineering Science, 127, 310-322. https://doi.org/10.1016/j.ces.2015.01.049

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title = "Investigation of particle velocity in FCC gas-fluidized beds based on different measurement techniques",

abstract = "The novel traveling fluidization column, designed and built to assure identical operating conditions, was deployed to compare alternate experimental measurement techniques for hydrodynamic characterization of gas-fluidized beds. This paper compares measurements of particle velocity obtained by radioactive particle tracking (RPT—non-invasive at the Ecole Polytechnique), 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) carried out with FCC particles of mean diameter 107 μm. All of the techniques provided similar trends with respect to time-average particle velocity profiles, but significant differences were observed in some cases. Analysis of the results, focusing on the physical principles of each measurement technique, provides valuable insights into the reasons for the observed discrepancies. The results also add to a unique hydrodynamic database for validation of CFD and other mechanistic models.",

keywords = "Fluidized beds, Particle velocity, Optical fiber probes, Borescopic PIV, Radioactive particle tracking, Positron emission particle tracking",

author = "Sina Tebianian and Kristian Dubrawski and Naoko Ellis and Cocco, {Ray A.} and Roy Hays and {Reddy Karri}, S.b. and Leadbeater, {Thomas W.} and David Parker and Jamal Chaouki and Rouzbeh Jafari and Pablo Garcia-trinanes and Seville, {Jonathan P.k.} and Grace, {John R.}",

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doi = "10.1016/j.ces.2015.01.049",

language = "English",

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Tebianian, S, Dubrawski, K, Ellis, N, Cocco, RA, Hays, R, Reddy Karri, SB, Leadbeater, TW, Parker, D, Chaouki, J, Jafari, R, Garcia-trinanes, P, Seville, JPK & Grace, JR 2015, 'Investigation of particle velocity in FCC gas-fluidized beds based on different measurement techniques', Chemical Engineering Science, vol. 127, pp. 310-322. https://doi.org/10.1016/j.ces.2015.01.049

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T1 - Investigation of particle velocity in FCC gas-fluidized beds based on different measurement techniques

AU - Tebianian, Sina

AU - Dubrawski, Kristian

AU - Ellis, Naoko

AU - Cocco, Ray A.

AU - Hays, Roy

AU - Reddy Karri, S.b.

AU - Leadbeater, Thomas W.

AU - Parker, David

AU - Chaouki, Jamal

AU - Jafari, Rouzbeh

AU - Garcia-trinanes, Pablo

AU - Seville, Jonathan P.k.

AU - Grace, John R.

PY - 2015/5/4

Y1 - 2015/5/4

N2 - The novel traveling fluidization column, designed and built to assure identical operating conditions, was deployed to compare alternate experimental measurement techniques for hydrodynamic characterization of gas-fluidized beds. This paper compares measurements of particle velocity obtained by radioactive particle tracking (RPT—non-invasive at the Ecole Polytechnique), 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) carried out with FCC particles of mean diameter 107 μm. All of the techniques provided similar trends with respect to time-average particle velocity profiles, but significant differences were observed in some cases. Analysis of the results, focusing on the physical principles of each measurement technique, provides valuable insights into the reasons for the observed discrepancies. The results also add to a unique hydrodynamic database for validation of CFD and other mechanistic models.

AB - The novel traveling fluidization column, designed and built to assure identical operating conditions, was deployed to compare alternate experimental measurement techniques for hydrodynamic characterization of gas-fluidized beds. This paper compares measurements of particle velocity obtained by radioactive particle tracking (RPT—non-invasive at the Ecole Polytechnique), 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) carried out with FCC particles of mean diameter 107 μm. All of the techniques provided similar trends with respect to time-average particle velocity profiles, but significant differences were observed in some cases. Analysis of the results, focusing on the physical principles of each measurement technique, provides valuable insights into the reasons for the observed discrepancies. The results also add to a unique hydrodynamic database for validation of CFD and other mechanistic models.

KW - Fluidized beds

KW - Particle velocity

KW - Optical fiber probes

KW - Borescopic PIV

KW - Radioactive particle tracking

KW - Positron emission particle tracking

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DO - 10.1016/j.ces.2015.01.049

M3 - Article

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VL - 127

SP - 310

EP - 322

JO - Chemical Engineering Science

JF - Chemical Engineering Science

ER -

Investigation of particle velocity in FCC gas-fluidized beds based on different measurement techniques

Abstract

Keywords

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Platform Grant for the University of Birmingham Positron Imaging Centre

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