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Show 4.0 Summary This study examines the effect of soot concentration on N O x emissions in an oil fired industrial glass furnace. The generation of radical nuclei and formation of soot on these nuclei are incorporated usmg the two-step Tesner model. It is predicted from the current simulation that a peak soot concentration of 1 g/m3 decreases the flame temperature from 2094°C (at 0g/m3soot concentration) to 1726°C. A reduction in peak temperature in turn reduces N O x concentration from 3389 ppmdv to 606 ppmdv at the furnace exit. The computational time to converge these simulations was approximately 24-48 hours on a cluster of 3 dual processors, Pentium-Pro PCs running under the Linux operating system. 5.0 REFERENCES Boerstoel, g.P., Wiennga, J.A., van der Meer, T, Hoogendoom, C.J., (1994), "Numerical Modeling of Soot Formation in Glass Melting Furnaces," Eurotherm No. 37, pp. 167-80 Carvalho, M.G., Semiao, V., Lockwood, F.C, and Papadopoulos, C , (1990), "Predictions of Nirnc Oxide Emissions from an Industrial Glass-Melting Furnace," Journal of the Institute of Energy, pp.39-47 Costa, M., Mourao, M., Baltasar, J., and Carvalho, M.G., (1996), "Combustion Measurements in an Industrial Glass-Melting Furnace,", Journal of the Institute of Energy, Vol. 69, pp.80-86 Fiveland, W.A., (1984), "Discrete-Ordinates Solutions of the Radiative Transport Equation for Rectangular Enclosures," J. eat Transfer, Transactions of the A S M E , Vol. 106, pp. 699-06 FLUENT USERS GUIDE, (1999), Fluent Incorporated, 10 Cavendish Court, Centerra Resource Park, Lebanon, N H 03766 Morsi, S.A., and Alexander, A.J., (1972), "An Investigation of Particle Trajectories in Two-Phase Flow Systems," J. Fluid Mechanics, Vol. 55(2), pp. 193-208 Sarofim, A.F., and Flagan, R.C., (1976), "NOx Control for Stationary Combustion Sources," Prog. Energy Combustion Science, Vol. 2, pp. 1-25 Schmalhorst, E., and Emas, T., (1995), "First Practical Experiences with an SCR DeNOx Facility in a Container Glassworks," Glastech. Ber. Glass Sci. Technol., Vol 68(5), pp. 133-38 Smoot, L.D., Hill, S.C., and Xu, H., (1998), "NOx Control Through Reburning," Progress m Energy Combustion Science, Vol. 24, pp. 385-408 Tesner, P. A., Snegiriova, T.D., and Knorre, V.G., (1971), "Kinetics of Dispersed Carbon Formation," Combustion and Flame, Vol. 17, 253-260 |