Numerical simulation of thermal-hydraulic processes in the riser chamber of installation for clinker production

• Autorzy: Borsuk G. , Dobrowolski B. , Nowosielski G. , Wydrych J. , Duda J.

Identyfikatory

DOI

10.1515/aoter-2016-0009

• Języki publikacji: EN

Abstrakty

EN

Clinker burning process has a decisive influence on energy consumption and the cost of cement production. A new problem is to use the process of decarbonization of alternative fuels from waste. These issues are particularly important in the introduction of a two-stage combustion of fuel in a rotary kiln without the typical reactor-decarbonizator. This work presents results of numerical studies on thermal-hydraulic phenomena in the riser chamber, which will be designed to burn fuel in the system where combustion air is supplied separately from the clinker cooler. The mathematical model is based on a combination of two methods of motion description: Euler description for the gas phase and Lagrange description for particles. Heat transfer between particles of raw material and gas was added to the numerical calculations. The main aim of the research was finding the correct fractional distribution of particles. For assumed particle distribution on the first stage of work, authors noted that all particles were carried away by the upper outlet to the preheater tower, what is not corresponding to the results of experimental studies. The obtained results of calculations can be the basis for further optimization of the design and operating conditions in the riser chamber with the implementation of the system.

Słowa kluczowe

EN

two-phase flow; precalcination; particle distribution; CFD

PL

przepływ dwufazowy; rozkład wielkości cząstek; CFD

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2016
• Tom: Vol. 37, no. 1
• Strony: 127--142
• Opis fizyczny: Bibliogr. 21 poz., rys., tab., wz.

Twórcy

autor

Borsuk G.

• Opole University of Technology, Department of Thermal Engineering and Industrial Facilities,Prószkowska 76, 45-758 Opole, Poland

autor

Dobrowolski B.

• Opole University of Technology, Department of Thermal Engineering and Industrial Facilities,Prószkowska 76, 45-758 Opole, Poland

autor

Nowosielski G.

• Opole University of Technology, Department of Thermal Engineering and Industrial Facilities,Prószkowska 76, 45-758 Opole, Poland

autor

Wydrych J.

• Opole University of Technology, Department of Thermal Engineering and Industrial Facilities,Prószkowska 76, 45-758 Opole, Poland

autor

Duda J.

• Opole University of Technology,Department of Innovative Processes, Prószkowska 76, 45-758 Opole, Poland

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