Numerical simulation of NO production in a pulverized coal fired furnace

• Autorzy: Straka R. , Makovička J. , Beneš M.
• Języki publikacji: EN

Abstrakty

EN

Behaviour of air-coal mixture has been described using the Navier-Stokes equations for the mixture of air and coal particles, accompanied by the turbulence model. The undergoing chemical reactions are described by the Arrhenius kinetics (reaction rate proportional to exp(-E/RT) ). Heat transfer via conduction and radiation has also been considered. The system of partial difference equations is discretized using the finite volume method and the advection upstream splitting method as the Riemann solver. The resulting ordinary differential equations are solved using the 4th order Runge-Kutta method. Results of simulation for typical power production level are presented together with the air staging impact on NO production.

Słowa kluczowe

EN

numerical simulation; Arrhenius kinetics; coal particles; difference equations; pulverized coals; Riemann solver; coal; computer simulation; finite volume method; reaction rates; Runge-Kutta methods; turbulence models; Navier-Stokes equation; air-coal mixture; nitrogen oxides

PL

symulacja numeryczna; równanie Arrheniusa; cząsteczki węgla; równania różniczkowe; pył węglowy; węgiel; tlenek azotu; symulacja komputerowa; metoda objętości skończonych; szybkość reakcji; modele turbulencji; model matematyczny; równania Naviera-Stokesa; mieszanina powietrze-węgiel

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Environment Protection Engineering
• Rocznik: 2011
• Tom: Vol. 37, nr 2
• Strony: 13--22
• Opis fizyczny: Bibliogr. 9 poz., tab., rys.

Twórcy

autor

Straka R.

autor

Makovička J.

autor

Beneš M.

• Department of Heat Engineering and Environment Protection, Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, 30-059, Cracow, Poland,

Bibliografia

• [1]. Makovička, J., Havlena, V., Beneš, M., (2002) Algoritmy2002, p. 171., Proc. contributed papers;
• [2]. Zeldovich, J.B., (1946) Acta Physicochim. URSS, 21, p. 577;
• [3]. Bowman, C.T., Seery, D.J., (1972) Emissions from Continuous Combustion Systems, , Plenum Press, New York;
• [4]. (2000) Chemical Kinetics Database on the Web., , http://www.kinetics.nist.gov, NIST, National Institute of Standards and Technology;
• [5]. Warnatz, J., (2001) NOx Formation in High Temperature Processes, , University of Stuttgart, Germany;
• [6]. Baulch, D.L., (1992) J. Phys. Chem. Ref. Data, 21, p. 411;
• [7]. De Soete, G.G., (1975) Proc. 15th Int. Symposium on Combustion, p. 1093;
• [8]. Levy, J.M., Chen, L.K., Sarofim, A.F., Beer, J.M., (1981) Proc. 15th Int. Symposium on Combustion, p. 111;
• [9]. Liou, M.S., Steffen Jr., C., (1993) J. Comput. Phys., 107, p. 23