Analysis of cyclic combustion of the coal-water suspension

• Autorzy: Kijo-Kleczkowska A.
• Języki publikacji: EN

Abstrakty

EN

Combustion technology of the coal-water suspension creates a number of new possibilities to organize the combustion process fulfilling contemporary requirements, e.g. in the environment protection. Therefore the in-depth analysis is necessary to examine the technical application of coal as a fuel in the form of suspension. The research undertakes the complex investigations of the continuous coal-water suspension as well as cyclic combustion. The cyclic nature of fuel combustion results from the movement of the loose material in the flow contour of the circulating fluidized bed (CFB): combustion chamber, cyclone and downcomer. The experimental results proved that the cyclic change of oxygen concentration around fuel, led to the vital change of both combustion mechanisms and combustion kinetics. The mathematical model of the process of fuel combustion has been presented. Its original concept is based on the allowance for cyclic changes of concentrations of oxygen around the fuel. It enables the prognosis for change of the surface and the centre temperatures as well as mass loss of the fuel during combustion in air, in the fluidized bed and during the cyclic combustion.

Słowa kluczowe

EN

coal-water suspension; cyclic combustion of suspension; fluidized bed; kinetics of combustion reaction; mathematical model of coal-water fuel cyclic combustion; mechanism of fuel combustion

PL

cykliczne spalanie; kinetyka reakcji spalania; mechanizm procesów spalania paliw; model matematyczny; paliwo zawiesinowe; suspensja węglowo-wodna; złoże fluidalne

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2011
• Tom: Vol. 32, no. 1
• Strony: 45--75
• Opis fizyczny: Bibliogr. 15 poz.,

Twórcy

autor

Kijo-Kleczkowska A.

• Institute if Thermal Machinery, Czestochowa University of Technology, Armii Krajowej 21, 42-201 Czestochowa, Poland

Bibliografia

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