Two phase flow modeling in circulating fluidized bed for different number of solid fractions and different geometry configurations

• Autorzy: Fuzowski K. , Stelmachowski M.
• Języki publikacji: EN

Abstrakty

EN

Results of modeling of two phase gas-solid flow hydrodynamics in a fluidization column and column - cyclone - recirculation system are discussed in this study. A mathematical model is proposed implemented in FLUENT 6.2 commercial solver as well as in Kinetics Theory of Granular Flow. Simulation was carried out for several solid fractions. The influence is shown of an increased quantity of the solid fraction on stability circulation inside the column and external circulation in a complete system. Solid mass flux balance is presented in three characteristic points, and also the axial solid velocity distribution and solid volume fraction in the third characteristic column height. The proposed model predicts correctly the hydrodynamics of gas-solid flow in a circulating fluidized bed, with characteristic solid fluctuation and solid fraction distribution and velocity, observed also in a real laboratory column.

Słowa kluczowe

EN

circulating fluidized bed; Eulerian multiphase modelling; fluidization

PL

fluidyzacja; model wielofazowy Eulera; obiegowe złoże fluidalne

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2006
• Tom: Vol. 27, no. 4
• Strony: 99--110
• Opis fizyczny: Tab., wykr.,Bibliogr. 12 poz.,

Twórcy

autor

Fuzowski K.

autor

Stelmachowski M.

• Politechnika Łódzka, Wydział Inżynierii Procesowej i Ochrony Środowiska, Katedra Systemów Inżynierii Środowiska, ul. Wólczańska 215, 93-005 Łódź

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