Modelling the transport disengagement height in fluidized beds

A Brems; CW Chan; JPK Seville; David Parker; J Baeyens

doi:10.1016/j.apt.2010.07.012

Modelling the transport disengagement height in fluidized beds

A Brems, CW Chan, JPK Seville, David Parker, J Baeyens

Physics and Astronomy

Research output: Contribution to journal › Article

9 Citations (Scopus)

Abstract

Bubbles bursting at the surface of a bubbling gas fluidized bed (BFB) project particles into the freeboard. Coarser particles fall back, the solids loading declines with height in the freeboard, and fines are ultimately carried over. The height of declining solids loading is the transport disengagement height (TDH), measured in this research by positron emission particle tracking, and modelled from a balance of forces on ejected particles. Model predictions and PEPT-data are in good agreement. Almost all of the empirical equations overestimate the TDH. (C) 2010 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.

Original language	English
Pages (from-to)	155-161
Number of pages	7
Journal	Advanced Powder Technology
Volume	22
Issue number	2
DOIs	https://doi.org/10.1016/j.apt.2010.07.012
Publication status	Published - 1 Mar 2011

Keywords

Transport disengagement height (TDH)
Positron emission particle tracking (PEPT)
Carry-over
Modelling

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10.1016/j.apt.2010.07.012

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

Cite this

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title = "Modelling the transport disengagement height in fluidized beds",

abstract = "Bubbles bursting at the surface of a bubbling gas fluidized bed (BFB) project particles into the freeboard. Coarser particles fall back, the solids loading declines with height in the freeboard, and fines are ultimately carried over. The height of declining solids loading is the transport disengagement height (TDH), measured in this research by positron emission particle tracking, and modelled from a balance of forces on ejected particles. Model predictions and PEPT-data are in good agreement. Almost all of the empirical equations overestimate the TDH. (C) 2010 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.",

keywords = "Transport disengagement height (TDH), Positron emission particle tracking (PEPT), Carry-over, Modelling",

author = "A Brems and CW Chan and JPK Seville and David Parker and J Baeyens",

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doi = "10.1016/j.apt.2010.07.012",

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journal = "Advanced Powder Technology",

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T1 - Modelling the transport disengagement height in fluidized beds

AU - Brems, A

AU - Chan, CW

AU - Seville, JPK

AU - Parker, David

AU - Baeyens, J

PY - 2011/3/1

Y1 - 2011/3/1

N2 - Bubbles bursting at the surface of a bubbling gas fluidized bed (BFB) project particles into the freeboard. Coarser particles fall back, the solids loading declines with height in the freeboard, and fines are ultimately carried over. The height of declining solids loading is the transport disengagement height (TDH), measured in this research by positron emission particle tracking, and modelled from a balance of forces on ejected particles. Model predictions and PEPT-data are in good agreement. Almost all of the empirical equations overestimate the TDH. (C) 2010 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.

AB - Bubbles bursting at the surface of a bubbling gas fluidized bed (BFB) project particles into the freeboard. Coarser particles fall back, the solids loading declines with height in the freeboard, and fines are ultimately carried over. The height of declining solids loading is the transport disengagement height (TDH), measured in this research by positron emission particle tracking, and modelled from a balance of forces on ejected particles. Model predictions and PEPT-data are in good agreement. Almost all of the empirical equations overestimate the TDH. (C) 2010 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.

KW - Transport disengagement height (TDH)

KW - Positron emission particle tracking (PEPT)

KW - Carry-over

KW - Modelling

U2 - 10.1016/j.apt.2010.07.012

DO - 10.1016/j.apt.2010.07.012

M3 - Article

SN - 1568-5527

VL - 22

SP - 155

EP - 161

JO - Advanced Powder Technology

JF - Advanced Powder Technology

IS - 2

ER -

Modelling the transport disengagement height in fluidized beds

Abstract

Keywords

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Platform Grant for the University of Birmingham Positron Imaging Centre

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