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A CFD model of the fluidized-bed furnace chamber of the OP-150 boiler pregasifier

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The values obtained by means of measurements of the fluidized-bed furnace chamber of the pregasifier of the Stalowa Wola power plant OP-150 boiler were compared with the results of numerical calculations performed using the Ansys.Fluent code [1] to verify the numerical model (and to select the sub-models). Two variants of the CFD model were taken into consideration in an attempt to simulate the furnace chamber operation in real conditions and in conditions created by closing the “circulation windows”. The steady-state processes of biomass pyrolysis, of the combustion of the volatile matter resulting from it and of the gasification and combustion of char were modelled. Some simplifications (solid bed, single-phase flow model in the Euler coordination system) were assumed in the CFD model, which did not have a considerable adverse effect on the obtained results.
Słowa kluczowe
Rocznik
Strony
79--96
Opis fizyczny
Bibliogr. 23 poz., rys., tab.
Twórcy
autor
  • Silesian University of Technology Institute of Power Engineering and Turbomachinery, Konarskiego Street 18, 44-100 Gliwice
Bibliografia
  • 1. Ansys Fluent. Computational Fluid Dynamics. Ansys Inc. England. www.ansys.com
  • 2. Yuen R. K. K., Yeoh G. H., Davis G. D., Leonardi E., Modelling the pyrolysis of wet wood – I. Threedimensional formulation and analysis, International Journal of Heat and Mass Transfer 2007. 50. 4371–4386.
  • 3. Yuen R. K. K., Yeoh G. H., Davis G. D., Leonardi E., Modelling the pyrolysis of wet wood – II. Threedimensional cone calorimeter simulation, International Journal of Heat and Mass Transfer 2007. 50. 4387-4399
  • 4. Sharma. A. K., Modelling fluid and heat transport in the reactive porous bed of downdraft (biomass) gasifier, International Journal of Heat and Fluid Flow 2007. 28. 1518-1530
  • 5. Yang Y. B., Sharifi V. N., Swithenbank J., Converting moving-grate incineration from combustion to gasification – Numerical simulation of the burning characteristics, Waste Management 2007. 27. 645-655
  • 6. Westbrook. C.K., Dryer. F.K., Simplified reaction mechanisms for the oxidation of hydro-carbon fuels in flames, Combustion Science and Technology 27. 31–43, 1981
  • 7. Risnes. H., Sørensen. L.H., Hustad. J.E., CO2 reactivity of chars from wheat, spruce and coal, In: Bridgwater. A.V. (Ed.). Progress in Thermochemical Biomass Conversion. vol. 1. Blackwell Science. pp. 61–72, 2001
  • 8. Hemati. M., Laguerie. C., Determination of the kinetics of the wood sawdust steam-gasification of charcoal in a thermobalance, Entropie 142. 29–40, 1988
  • 9. Newbury T.G., Haynes B.S., Report on the characterisation of oxygen, carbon dioxide and steam gasification for a cotton trash char, Department of Chemical Engineering. University of Sydney, 1997.
  • 10. Gonza´lez-Saiz J., Advances in biomass gasification in fluidized bed, PhD thesis, University of Saragossa (Dept. Chem. Eng.), 1988
  • 11. Xu J., Froment G.F., Methane steam reforming. methanation and water–gas shift: I. Intrinsic kinetics, AIChE Journal 35 (1) (1989) 88–96
  • 12. Simell P.A., Hirvensalo E.K., Smolander S.T., Krause A.O., Steam reforming of gasification gas tar over dolomite with benzene as a model compound, Industrial and Engineering Chemistry Research 38 (1999) 1250
  • 13. Liu H., Gibbs B.M., Modelling NH3 and HCN emissions from biomass circulating fluidized biomass gasifiers, Fuel 82 (2003) 1591–1604
  • 14. The´rien N., Marchand P., Chamberland A., Gravel G., Computer modelling and simulation of a biomass fluidized-bed gasifier, Proceedings of the XVIII Congress: The Use of Computers in Chemical Engineering – CEF87. 26–30 April. Gianardi Naxos. Italy. 1987. pp. 187–192
  • 15. Fletcher D.F., Haynes B.S., Christo F.C., Joseph S.D., A CFD based combustion model of an entrained flow biomass gasifier, Applied Mathematical Modelling 24 (2000) 165– 182
  • 16. Wang. Y., Kinoshita C.M., Kinetic model of biomass gasification, Solar Energy 51 (1).19–25, 1993
  • 17. Kim Y.J., Lee J.M., Kim S.D., Modelling of coal gasification in an internally circulating fluidized-bed reactor with draught tube, Fuel 79 (2000) 69
  • 18. Westbrook C.K., Dryer F.L., Chemical kinetic modelling of hydrocarbon combustion, Prog Energy Combust Sci 1984;10:1–57
  • 19. Jones W.P., Lindstedt R.P., Global reaction schemes for hydrocarbon combustion, Combust Flame 1988;73:233–49
  • 20. Bonnefoy F., Gilot P., Prado G., A three-dimensional model for the determination of kinetic data from the pyrolysis of beech wood, Journal of Analytical and Applied Pyrolysis. 25: 387-394, 1993
  • 21. Koufopanos C.A., Maschio G., Lucchesi A.: Can J Chem Eng 1989;67:75
  • 22. Ergun S., Fluid Flow through Packed Columns, Chem. Eng. Prog.. 48(2). 89–94. 1952
  • 23. [in Polish] Testing the K11 OP-150 boiler pregasifier at the Stalowa Wola power plant to find input data for numerical modelling, Gliwice, March 2013r.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-a25eaacf-0c4e-4fee-ac1b-f058c9eb7095
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