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Preliminary Studies of HTAC Technology Applications in Boiler Fired with Pulverized Coal

Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
High Temperature Air Combustion (HTAC) technology is probably the most important achievement of combustion technology of recent years. lt has been successfully introduced in hundreds of industrial furnaces which is extraordinary fast progress as for energy technology. In these furnaces was observed significant reduction in fuel consumption and harmful substances emission. Although all applications are limited to industrial furnaces, HTAC technology should give significant advantages when applied in boilers. In this paper, the authors analyze a simple design of a boiler operating on HTAC technology fired with pulverized coal. The calculations were done using the commercial CFD code Fluent (version 6.2.16). Selection of the mathematical models is based on the simulation of the IFRF experiment called HTAC 99, which was one previous work of the authors [l]. lt has been found the exact geometry of the combustion chamber, location of the burner block in the boiler and distance between individual burners. Finally, calculation with the investigated design of the boiler operat ing with HTAC conditions fired with pulverized coal has been done. The results of a series of mathematical modelling will be presented and discussed in this paper. This work demonstrated an extremely attractive technology for efficient and environmentally friendly combustion.
Słowa kluczowe
Rocznik
Strony
55--67
Opis fizyczny
Bibliogr. 9 poz., rys., tab.
Twórcy
autor
autor
  • lnstitute of Thermal Technology Silesian University of Technology Konarskiego 22, 44-100 Gliwice, Poland Fax: +48 32 237-28-72, Tel: +48 32 237-29-20, schaffel@itc.polsl.pl
Bibliografia
  • [1] Schaffel N.,Szlek A.,Loeffler K.,Mancini M.,Weber R.: Mathematical Modelling of Mild/Flameles Combustion Of Pulverized Coal. 6th International Symposium on High Temperature Air Combustion and Gasification, October 17-19th 2005, Essen, Germany.
  • [2] Wuenning J., Wuenning J., Brenner fuer ammenlose Oxydation mit geringer NOx-bildung auch bei hochster Luftwarmung. Gaswaerme International, 41, (1992), pp. 438.
  • [3] Cavaliere A., de Joannon M.: Mild combustion. Prog. Energy Combust. Sci., 30, (2004), pp. 329-366.
  • [4] Weber R., Verlaan A., Orsino S., Lallement N.: On emerging furnace design methodology that provides substantial energy savings and drastic reductions in CO2, CO and NOx emissions. J. Inst. Energy, 72, (1999), pp.77-83.
  • [5] Weber R., Smart J., Vd Kamp W.: On the combustion of gaseous, liquid and solid fuels in high temperature preheated air. Proc. Combust. Inst., 30, (2005), pp.2623-2629.
  • [6] Szlek A., Wilk R.K.: Emerging technologies of Solid Fuel Combustion. Fifth Inernational Symposium on High Temperature Air Combustion and Gasification, 28-30 October 2002, 7.p, Tokyo, Japan.
  • [7] A. Peters and R. Weber, Mathematical modelling of a 2.4 MW Swirling Pulverized Coal Flame, Comb. Sci. and Tech. 1997, Vol. 122, pp 131-182
  • [8] Smith, K. L., Smoot L. D., Fletcher T. H. and Pugmire R. J.: The Structure and Reaction Processes of Coal, New York, 1994. Plenum Press.
  • [9] Fletcher T.H., Kerstein A.R.:Chemical Percolation Model for Devolatilzation: 3.Direct use of 13C NMR Data to Predict Effects of Coal Type. Energy and Fuels 6, (1992), pp.414,
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BWM4-0004-0010
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