Priprema tečne smješe uglja i vode i energetska postrojenja za njeno sagorijevanje

  • Opisane su metode koje se koriste za pripremu tečne smješe od dvije i više komponenti u različitim omjerima, od kojih jedna obavezno predstavlja gorivi element (CWS). Predstavljeni su rezultati kompjuterske simulacije i testiranje sagorijevanja CWS različitih sastava u nekoliko tipova gorionika.

    The article describes methods used to prepare coal-water slurry, presents the results of computer simulation and test combustion of coal-water slurry of different composition in burners of several types. Coal-water slurry (CWS) is a liquid mixture of two or more components blended in various proportions of which one is a combustible element (bituminous and subbituminous coal, peat, coal-preparation by-products, oil coke, etc.) The use of CWS and its sub-sorts as energy carrier in energy sector has a number of advantages as compared with common ways of coal preparation and combustion. First of all these advantages include reduced losses during coal transportation, convenient storage and in-plant transfer, easy feeding of CWS into furnaces of power plants. Further more, CWS is a future fuel to replace in sufficient and expensive fuel oil in power facilities. Whereas adaptation of boilers for combustion of CWS requires considerable investments, there are still many “energy niches” in diverse regional and local conditions where CWS use is preferable for technical and economical reasons. It should be noted that any currently constructed or refurbished power unit shall meet the requirements of emission standards which are continuously becoming more stringent. We think that one of the possible solutions is redesign of boilers and their transfer to combustion of CWS in dedicated preliminary combustion chambers – primary furnaces. Several methods of CWS preparation and combustion in different burners are known presently. A burner shall ensure prolonged presence of particles within the high temperature zone and availability of igniter. However, only few of available variants are able to offer the use of CWS in power industry with reliable ignition and burn out. Two installations for CWS preparation and combus tion are described.

  • Ključne reči
  • Stranice
    169 - 181
  • Datum slanja
    09/01/2010
  • Datum revizije
    12/20/2010
  • Datum prihvatanja
    01/20/2011
  • UDC
    662.93/.94
  • BIBLID
    0350-218X, 37 (2011), 1, 169-181
  • Reference
    • Cepenok, A. I., Lucenko, S. V., Serant, F. A., Karpov, E. G., Prigotovlenie i sžiganie vodougolünogo topliva v različnih topočnih ustroistvah, Pervaja meždunarodnaja konferencii Ustoičivoe razvitie teploenergetiki, Sbornik trudov, TENOR 2010, g. Uglevik, Respublika Serbska, Bosnia i Gercegovina, pod pokrovitelüstvom Ministerstva promišlennosti, topliva i Energetiki Respubliki Serbskoi, Elektrohozjaistva Respubliki Serbskoi, 21-23 nov 2010 g., 61-66
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