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2001, vol. 26, iss. 1-4, pp. 11-24
An estimate of coal blend ashes tendency to the fouling and slogging of boilers heating surfaces
University of Belgrade, Institute of Nuclear Sciences 'Vinča', Belgrade-Vinča
Keywords: coal blends; fouling; slagging; ash fusibility
Abstract
Results of investigation of coal blends, originated from different fields of Kolubaras' basin with different coals mass portions in the blends are presented. Laboratorial investigation of three coal samples taken from two fields of Kolubaras' basin, "Tamnava-east field" west part of basin (MA, with higher heating value), "Tamnava-east field" west part of basin (MB, with lower heating value) and "Field D"-east part of basin (MD), were done. Also, an estimate of ash tendency to the slagging by application of base/acid ratio-ash fusion temperature criteria, which is successfully used in characterization of domestic coals, was done. It is also presented that chemical and physical characteristics of coals blend are additive values of coals while tendency of fusibility is not additive value.
References
Baxter, L.L. (1993) Experimental and theoretical comparations of the combustion and ash deposition behavior of blended coals and that of the blend components. in: Coal-Blending and Switching of Low-Sulphur Western Coals, New York itd: American Society of Mechanical Engineers / ASME, str. 255-264
Joseph, G.S. (1981) Combustion fossil power systems, properties of coal ash. in: Combustion Engineering, Windsor, Chapter 3, 3-33
Jovanović, L.Lj. (1975) Prljanje i čišćenje kotlovskih grejnih površina. Laboratorija za toplotnu fiziku i tehniku Instituta za nuklearne nauke Boris Kidrič Vinca
Martinović, P.M. (2001) Ocena sklonosti pepela mešavine ugljeva na prljanje i zašljakivanje kotlovskih grejnih površina. Beograd: Mašinski fakultet, Magistarski rad
Radovanović, M. (1994) Goriva. Beograd: Mašinski fakultet
Radovanović, M.P. (1994) Prilog proučavanju uticaja stvaranja naslaga pepela na efikasnost rada grejnih površina kotla u cilju izrade odgovarajućeg ekspertskog sistema. Banja Luka: Mašinski fakultet, doktorska disertacija
Richard, W.B. (1978) Ash deposits and corrosion Due to impurities in combustion gases. London: Published by Hemisphere Publishing Corporation
Tecilazić, M. (1962) Osnovi tehnologije silikata. Beograd: Skriptarnica Saveza studenata Tehnološkog fakulteta
 

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article language: Serbian
document type: Original Scientific Paper
published in SCIndeks: 02/06/2007

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