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Название: The influence of the gas-distributing grid diameter on the transition velocity and hydrodynamics of the bottom layer in circulating fluidized bed installations
Авторы: Tuponogov, V. G.
Baskakov, A. P.
Дата публикации: 2013
Библиографическое описание: Tuponogov V. G. The influence of the gas-distributing grid diameter on the transition velocity and hydrodynamics of the bottom layer in circulating fluidized bed installations / V. G. Tuponogov, A. P. Baskakov // Thermal Engineering. — 2013. — Vol. 60. — № 11. — P. 808-812.
Аннотация: The dependences of dimensionless fluidization velocities separating bubble, transition, and fast fluidization regimes on the properties of dispersed material for particles belonging to groups B and D (according to D. Geldart's classification) are presented. Correspondence between the considered dependences and experimental data obtained by different researchers and their correlation with critical fluidization velocities and particle terminal velocities are shown. The hydrodynamic mechanisms governing the saturation of fluidized bed with bubbles on reaching the transition fluidization velocity in installations having different sizes are considered. Factors due to which a bottom bubble layer disappears in narrow installations and is retained on large-diameter grids in an intense channel forming mode are explained. Experimental data are presented from which it is seen that the bubble layer hydrodynamics depends on the gas-distributing grid diameter and that this diameter has an insignificant influence on the fluidization velocity during the transition from a bubble to fast fluidization regime. © 2013 Pleiades Publishing, Inc.
Ключевые слова: BOTTOM LAYER
BUBBLES
FLUIDIZATION REGIMES
GAS-DISTRIBUTING GRID
TRANSITION VELOCITIES
BOTTOM LAYERS
CIRCULATING FLUIDIZED BED
CRITICAL FLUIDIZATION VELOCITY
FLUIDIZATION REGIMES
FLUIDIZATION VELOCITY
GAS-DISTRIBUTING GRIDS
PARTICLE TERMINAL VELOCITY
TRANSITION VELOCITIES
BUBBLES (IN FLUIDS)
FLUIDIZED BEDS
HYDRODYNAMICS
VELOCITY
FLUIDIZATION
URI: http://elar.urfu.ru/handle/10995/27500
Идентификатор SCOPUS: 84886882821
Идентификатор PURE: 894902
ISSN: 0040-6015
DOI: 10.1134/S0040601513110116
Располагается в коллекциях:Научные публикации ученых УрФУ, проиндексированные в SCOPUS и WoS CC

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