Co-combustion of coal and biomass in the fluidized bed

• Autorzy: Gajewski, W. , Kijo-Kleczkowska, A.
• Języki publikacji: EN

Abstrakty

EN

In the work an attempt has been made to explain the mechanism and kinetics of coal and biomass co-combustion in the fluidized bed. Biomass is one from the most promising sources of renewable energy. Technology of coal and biomass co-combustion makes possible elimination of most of problems connected with properties of biomass: large content of volatiles matter and high reactivity, determining necessity of usage suitable variable technical solutions, assuring effective conversion of biomass, whether high and variable, content of moisture, consequence of which is also lower calorific value of fuels. One ascertained that combustion of fuel mixtures, consisting from coal and biomass makes possible stable work of boilers, assuring high ecological and energy effectivity. Completed investigations proved, that addition biomass to coal increases temperature of combustion of fuel whereas the extent of content of volatiles in fuel mixture shifts the mechanism of combustion towards the diffusive direction.

Słowa kluczowe

PL

biomasa; kinetyka spalania; węgiel; złoże fluidalne

EN

biomass; coal; coal-water slurries; fluidized bed; kinetics of combustion

• Czasopismo: Archives of Thermodynamics
• Rocznik: 2007
• Tom: Vol. 28, no. 4
• Strony: 63-78
• Opis fizyczny: Bibliogr. 11 poz.,Il., wykr., wz., tab.,

Twórcy

autor

Gajewski, W.

autor

Kijo-Kleczkowska, A.

• Częstochowa University of Technology, Department of Boilers and Thermodynamics, al. Armii Krajowej 19 C, 42-200 Częstochowa, Poland,

Bibliografia

• [1] GAJEWSKI W.: Ecological aspects of transformation of energy, Archives of Thermodynamics, Vol. 17, No. 3-4 (1996).
• [2] KOWALIK P.: Potential possibilities energetistic utilizations biomass in Poland, Economy with Fuels and with Energy, 3, 1994.
• [3] LIMANOWSKI J., AGOPSOWICZ M.: Utilization of waste material of wood to production warm, Economy with Fuels and with Energy, 3, 1996.
• [4] KUBICA K., ŚCIĄŻKO M., RAINCZAK J., ZAWISTOWSKI J.: The study of the technical and technological conditions of preparation and co-combustion of biomass and coal in dust boilers, Report of IChRC, 2003.
• [5] ZAWISTOWSKI J.: Co-combustion of willow biomass and coal, Papers of IChRC.
• [6] KANIA B.: Unconventional methods of combustion of coal, Warsaw 1983.
• [7] LIU G.E., LAW C.K.: Combustion of coal - water droplets, Fuel, Vol. 65, 1986.
• [8] DUNN-RANKIN D.: Combustion of coal - water Slurries. Evolution of particle size distribution for coals of different rank, Fuel, Vol. 66, 1987.
• [9] GAJEWSKI W., KIJO-KLECZKOWSKA A.: Mechanism and kinetics of coal-water suspension combustion, 10th Intern. Conf. of Boiler Technology, 2006.
• [10] GAJEWSKI W., KIJO-KLECZKOWSKA A.: Analysis of Combustion of Solid Fuels in the Fluidized Bed, Archivum Combustionis, Vol. 25, No. 1-4, 2005.
• [11] POLAŃSKI R.: Planning of Experiences in Technics, Warsaw 1984.