Axial solids mixing in a circulating fluidized bed

A phenomenological model of axial solids mixing in a circulating fluidized bed is formulated. The model allows for main specific features of the process: ascending motion of particles in the core zone and their descending motion in the annular zone (inner circulation of solids); substantial changes...

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Published inInternational journal of heat and mass transfer Vol. 46; no. 22; pp. 4335 - 4343
Main Authors Teplitsky, Yu.S., Borodulya, V.A., Nogotov, E.F.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.10.2003
Elsevier
Subjects
Applied sciences
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Theoretical studies. Data and constants. Metering
Thermodynamics, mechanics etc. For energy applications
Circulating fluidized bed
Mixing
Numerical analysis
Hydrodynamics
Solid particle
Modeling
Axial flow
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Abstract A phenomenological model of axial solids mixing in a circulating fluidized bed is formulated. The model allows for main specific features of the process: ascending motion of particles in the core zone and their descending motion in the annular zone (inner circulation of solids); substantial changes of particle concentration, sizes of core and annular zones over the bed height; net circulation of solids and the effect of the bottom bed on the process. The validity of initial postulates is confirmed by comparison of calculated and experimental curves of mixing.
AbstractList A phenomenological model of axial solids mixing in a circulating fluidized bed is formulated. The model allows for main specific features of the process: ascending motion of particles in the core zone and their descending motion in the annular zone (inner circulation of solids); substantial changes of particle concentration, sizes of core and annular zones over the bed height; net circulation of solids and the effect of the bottom bed on the process. The validity of initial postulates is confirmed by comparison of calculated and experimental curves of mixing.
Author Borodulya, V.A.
Nogotov, E.F.
Teplitsky, Yu.S.
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Keywords Circulating fluidized bed
Mixing
Numerical analysis
Hydrodynamics
Solid particle
Modeling
Axial flow
Language English
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Snippet A phenomenological model of axial solids mixing in a circulating fluidized bed is formulated. The model allows for main specific features of the process:...
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SubjectTerms Applied sciences
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Theoretical studies. Data and constants. Metering
Thermodynamics, mechanics etc. For energy applications
Title Axial solids mixing in a circulating fluidized bed
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