Numerical simulation of fluidization between the tubes

• Autorzy: Wydrych J. , Szmolke N.
• Języki publikacji: EN

Abstrakty

EN

In this paper, numerical tests of fluidization between the tubes are presented. In some selected flow systems, calculations were performed for two kinds of comminuted materials of the fluidized bed under different flow rates. Two systems (triangular and rectangular) of tubes were analysed. Calculations were performed with the Euler's method for multiphase flows. A local growth of the solid phase concentration causes non-uniform resistances of flow, and their estimation is one of the problems connected with service of tubular heat exchangers. Obtained test results proved that the applied calculation method allowed to reproduce a flow of the fluidized bed in the space between tubes.

Słowa kluczowe

EN

CFD; fluidization; simulation; tube systems

PL

fluidyzacja; symulacja; system rur

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2006
• Tom: Vol. 27, no. 4
• Strony: 245--254
• Opis fizyczny: Wz., rys., wykr.,Bibliogr. 7 poz.,

Twórcy

autor

Wydrych J.

autor

Szmolke N.

• Politechnika Opolska, Katedra Techniki Cieplnej i Aparatury Przemysłowej, ul. Mikołajczyka 5, 45-233 Opole

Bibliografia

• [1] GIDASPOW D. AND HUILIN L.: Collisional viscosity of FCC particles in a CFB, AIChE. J., 42, 1996, 2503-2510.
• [2] GIDASPOW D. AND HUILIN L.: Equation of state and radial distribution functions of FCC particles in a CFB, AIChE. J., 44, 1998, 279-293.
• [3] GIDASPOW D.: Multiphase Flow and Fluidization: Continuum and Kinetic Theory Descriptions, Academic Press, 1994.
• [4] PACHLER K., BERNERT K., FRANK TH., SCHNEIDER H.: Numerical simulation of disperse multiphase flows with an application in power engineering, 3rd Int. Symp. Comp. Tech. Fluid/Thermal/Chemical Systems Ind. Appl. Atlanta, Georgia, USA 2001.
• [5] WYDRYCH J.: Aerodynamic coditions of the erosion process in dust installations of power boilers, Doctor Thesis, Opole 2002.
• [6] ROUYER F., MARTIN J., SALIN D.: Wall effects in a fluidized bed, ICMF 98 (Int. Conf. of Multiphase Flow), Lyon, June 1998.
• [7] FLUENT INC.: Fluid Dynamics Analysis Package, Fluid Dynamic Intern. Inc.