Modelling of Air and Oxy-fuel Combustion in a Circulating Fluidized Bed

• Autorzy: Adamczyk W.

Identyfikatory

DOI

10.12736/issn.2300-3022.2016201

Warianty tytułu

PL

Modelowanie procesu spalania powietrznego oraz tlenowego w cyrkulacyjnej warstwie fluidalnej

• Języki publikacji: EN PL

Abstrakty

EN

The paper presents the use of a computer model to simulate the process of fluidization in an industrial boiler at Turów power plant. Air and oxy-fuel combustion was modelled for the study, and the effect of the geometrical model’s simplification on the bulk material distribution in the combustion chamber was examined. Numerical simulations were performed using Ansys FLUENT software enhanced with additional user defined functions that were implemented in the calculation procedure. The computer model allowed for the analysis of the effect of solid phase’s volume fraction in the combustion chamber on the heat exchange between the bulk material and the boiler’s heated surfaces. The computer simulation results showed satisfactory consistence with measured data.

PL

W pracy przedstawiono wykorzystanie modelu komputerowego do symulacji procesu fluidyzacji w przemysłowym kotle elektrowni Turów. W pracy modelowany był proces spalania powietrznego oraz tlenowego, a także badany był wpływ uproszczeń modelu geometrycznego na dystrybucję materiału sypkiego w komorze spalania. Symulacje numeryczne zostały przeprowadzone z wykorzystaniem oprogramowania Ansys FLUENT rozszerzonego o dodatkowe funkcje użytkownika, które zostały zaimplementowane do procedury obliczeniowej. Opracowany model komputerowy pozwolił na analizę wpływu udziału objętościowego fazy stałej w komorze spalania na proces wymiany ciepła pomiędzy materiałem sypkim a powierzchniami ogrzewalnymi kotła. Wyniki symulacji komputerowych pokazały zadowalającą zgodność z danymi pomiarowymi.

Słowa kluczowe

EN

fluidization; modeling; dense flow; combustion

PL

kocioł fluidalny; modelowanie; gęste przepływy; spalanie

• Wydawca: ENERGA SA
• Czasopismo: Acta Energetica
• Rocznik: 2016
• Tom: nr 2
• Strony: 6--13
• Opis fizyczny: Bibliogr. 23 poz., rys., tab.

Twórcy

autor

Adamczyk W.

• Silesian University of Technology

Bibliografia

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