Study of bubbling and slugging fluidized beds by simulation and ECT

Haigang Wang; Wuqiang Yang; Tom Dyakowski; Shi Liu

doi:10.1002/aic.10904

Study of bubbling and slugging fluidized beds by simulation and ECT

Haigang Wang^*
, Wuqiang Yang
, Tom Dyakowski
, Shi Liu

^*Corresponding author for this work

University of Manchester
CAS - Institute of Engineering Thermophysics

Research output: Contribution to journal › Article › peer-review

52 Scopus citations

Abstract

Fluidization conditions in a circulating-fluidized bed (CFB) can vary dramatically, from bubbling to circulating regimes. The granular Eurlerian models have been used to simulate the bubbling and slugging behavior of gas and solids in CFB. Considering the dielectric properties and rapid movement of solids in CFB, electrical capacitance tomography (ECT) is particularly suitable for measuring the concentration and distribution of solids in CFB to verify the simulation results. The simulation results by computational fluid dynamics (CFD) analysis and experimental results obtained by ECT are reported, and compares the simulation and experimental results first time, including the solids concentration profile, temporal variation of average-solids concentration, autocorrelation coefficient and frequency spectrum.

Original language	English
Pages (from-to)	3078-3087
Number of pages	10
Journal	AIChE Journal
Volume	52
Issue number	9
DOIs	https://doi.org/10.1002/aic.10904
State	Published - Sep 2006
Externally published	Yes

Keywords

CFD
Circulating fluidized bed
Electrical capacitance tomography
Multiphase flow

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10.1002/aic.10904

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title = "Study of bubbling and slugging fluidized beds by simulation and ECT",

abstract = "Fluidization conditions in a circulating-fluidized bed (CFB) can vary dramatically, from bubbling to circulating regimes. The granular Eurlerian models have been used to simulate the bubbling and slugging behavior of gas and solids in CFB. Considering the dielectric properties and rapid movement of solids in CFB, electrical capacitance tomography (ECT) is particularly suitable for measuring the concentration and distribution of solids in CFB to verify the simulation results. The simulation results by computational fluid dynamics (CFD) analysis and experimental results obtained by ECT are reported, and compares the simulation and experimental results first time, including the solids concentration profile, temporal variation of average-solids concentration, autocorrelation coefficient and frequency spectrum.",

keywords = "CFD, Circulating fluidized bed, Electrical capacitance tomography, Multiphase flow",

author = "Haigang Wang and Wuqiang Yang and Tom Dyakowski and Shi Liu",

year = "2006",

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AU - Wang, Haigang

AU - Yang, Wuqiang

AU - Dyakowski, Tom

AU - Liu, Shi

PY - 2006/9

Y1 - 2006/9

N2 - Fluidization conditions in a circulating-fluidized bed (CFB) can vary dramatically, from bubbling to circulating regimes. The granular Eurlerian models have been used to simulate the bubbling and slugging behavior of gas and solids in CFB. Considering the dielectric properties and rapid movement of solids in CFB, electrical capacitance tomography (ECT) is particularly suitable for measuring the concentration and distribution of solids in CFB to verify the simulation results. The simulation results by computational fluid dynamics (CFD) analysis and experimental results obtained by ECT are reported, and compares the simulation and experimental results first time, including the solids concentration profile, temporal variation of average-solids concentration, autocorrelation coefficient and frequency spectrum.

AB - Fluidization conditions in a circulating-fluidized bed (CFB) can vary dramatically, from bubbling to circulating regimes. The granular Eurlerian models have been used to simulate the bubbling and slugging behavior of gas and solids in CFB. Considering the dielectric properties and rapid movement of solids in CFB, electrical capacitance tomography (ECT) is particularly suitable for measuring the concentration and distribution of solids in CFB to verify the simulation results. The simulation results by computational fluid dynamics (CFD) analysis and experimental results obtained by ECT are reported, and compares the simulation and experimental results first time, including the solids concentration profile, temporal variation of average-solids concentration, autocorrelation coefficient and frequency spectrum.

KW - CFD

KW - Circulating fluidized bed

KW - Electrical capacitance tomography

KW - Multiphase flow

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DO - 10.1002/aic.10904

M3 - 文章

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SP - 3078

EP - 3087

JO - AIChE Journal

JF - AIChE Journal

IS - 9

ER -

Study of bubbling and slugging fluidized beds by simulation and ECT

Abstract

Keywords

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