Internal recirculation flow structure in vertical upflow gas-solids suspensions Part I. A core-annulus model

Dingrong Bai; Jing Xu Zhu; Yong Jin; Zhiqing Yu

doi:10.1016/0032-5910(95)03010-7

Internal recirculation flow structure in vertical upflow gas-solids suspensions Part I. A core-annulus model

Dingrong Bai, Jing Xu Zhu, Yong Jin, Zhiqing Yu

Research output: Journal Publication › Article › peer-review

35 Citations (Scopus)

Abstract

A comprehensive, predictive two-region model has been developed to describe the core-annular internal recirculation flow structure in vertical gas-solids upward flowing suspensions. This new model is more flexible by allowing axial variations of the core radius and the gas and particle velocities in both the core and the annular regions. The validity of the model has been confirmed by good agreement between the predicted values and the various experimental measurements reported in the literature, including the radius of core region, voidage in the core region, solids recirculation ratio and deposition coefficient.

Original language	English
Pages (from-to)	171-177
Number of pages	7
Journal	Powder Technology
Volume	85
Issue number	2
DOIs	https://doi.org/10.1016/0032-5910(95)03010-7
Publication status	Published - Nov 1995
Externally published	Yes

Keywords

Circulating fluidized bed
Core-annulus model
Gas-solids flow
Internal recirculation
Solids suspension flow

ASJC Scopus subject areas

General Chemical Engineering

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10.1016/0032-5910(95)03010-7

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title = "Internal recirculation flow structure in vertical upflow gas-solids suspensions Part I. A core-annulus model",

abstract = "A comprehensive, predictive two-region model has been developed to describe the core-annular internal recirculation flow structure in vertical gas-solids upward flowing suspensions. This new model is more flexible by allowing axial variations of the core radius and the gas and particle velocities in both the core and the annular regions. The validity of the model has been confirmed by good agreement between the predicted values and the various experimental measurements reported in the literature, including the radius of core region, voidage in the core region, solids recirculation ratio and deposition coefficient.",

keywords = "Circulating fluidized bed, Core-annulus model, Gas-solids flow, Internal recirculation, Solids suspension flow",

author = "Dingrong Bai and Zhu, {Jing Xu} and Yong Jin and Zhiqing Yu",

year = "1995",

month = nov,

doi = "10.1016/0032-5910(95)03010-7",

language = "English",

volume = "85",

pages = "171--177",

journal = "Powder Technology",

issn = "0032-5910",

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T1 - Internal recirculation flow structure in vertical upflow gas-solids suspensions Part I. A core-annulus model

AU - Bai, Dingrong

AU - Zhu, Jing Xu

AU - Jin, Yong

AU - Yu, Zhiqing

PY - 1995/11

Y1 - 1995/11

N2 - A comprehensive, predictive two-region model has been developed to describe the core-annular internal recirculation flow structure in vertical gas-solids upward flowing suspensions. This new model is more flexible by allowing axial variations of the core radius and the gas and particle velocities in both the core and the annular regions. The validity of the model has been confirmed by good agreement between the predicted values and the various experimental measurements reported in the literature, including the radius of core region, voidage in the core region, solids recirculation ratio and deposition coefficient.

AB - A comprehensive, predictive two-region model has been developed to describe the core-annular internal recirculation flow structure in vertical gas-solids upward flowing suspensions. This new model is more flexible by allowing axial variations of the core radius and the gas and particle velocities in both the core and the annular regions. The validity of the model has been confirmed by good agreement between the predicted values and the various experimental measurements reported in the literature, including the radius of core region, voidage in the core region, solids recirculation ratio and deposition coefficient.

KW - Circulating fluidized bed

KW - Core-annulus model

KW - Gas-solids flow

KW - Internal recirculation

KW - Solids suspension flow

UR - http://www.scopus.com/inward/record.url?scp=0029106403&partnerID=8YFLogxK

U2 - 10.1016/0032-5910(95)03010-7

DO - 10.1016/0032-5910(95)03010-7

M3 - Article

AN - SCOPUS:0029106403

SN - 0032-5910

VL - 85

SP - 171

EP - 177

JO - Powder Technology

JF - Powder Technology

IS - 2

ER -

Internal recirculation flow structure in vertical upflow gas-solids suspensions Part I. A core-annulus model

Abstract

Keywords

ASJC Scopus subject areas

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