PLASMA-CHEMICAL ACTIVATION OF FLAME COMBUSTION IN THE FURNACE OF A PULVERIZED COAL FIRED BOILER
Abstract
Results of comparative numerical calculations of conventional combustion of coal and combustion of plasma-chemically activated in plasma-fuel systems coal in a furnace are presented. The calculations were fulfilled using two computer codes. The first one is one-dimensional Plasma-Coal code considering detail kinetics of thermochemical conversions of fuel in two-phase flow with plasma source and the second one is Cinar ICE code considering furnace geometry, flow turbulence, radiative heat transfer and combustion of coal particles by the fast chemistry model. Perspective of plasma-fuel systems to activate coal combustion and to improve ecology and economical indexes of thermal power plants is demonstrated.
References
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2. Аскарова А.С., Карпенко Е.И., Мессерле В.Е., Устименко А.Б. Плазмохимическая активация горения твердых топлив. Химия высоких энергий 2006, том 40, № 2, С. 141-148.
3. Kalinenko R.A., Kuznetsov A.P., Levitsky A.A., Messerle V.E., Mirokhin Yu.A., Polak L.S., Sakipov Z.B., Ustimenko A.B.. Pulverized Coal Plasma Gasification // Plasma Chemistry & Plasma Processing. 1993. Vol.13. N 1. P. 141-167.
4. Lockwood F.C., Shan N.G. Evaluation of an efficient radiation flux model for furnace prediction procedures //Proc. Sixth Intern. Heat Transfer Conference. 1978. P. 1405-1413.
5. Lockwood F.C., Mahmud T., Yehia M.A. Simulation of pulverised coal test furnace performance. // Fuel, 77. N.12, 1998, p. 1329.
6. Патанкар С. Численные методы решения задач теплообмена и динамики жидкости, М., Атомиздат, 1984, 152 с.
7. Launder B.E., Spalding D.B. The numerical computation of turbulent flows //Comput. Meth in Appl. Mech. And Eng. 1974. V.3. N2 p 269-289.
8. Lockwood F.C., Salooja A.P., Syed A.A. A prediction method for coal-fired furnaces //Combust. Flame. 1980. V.38. N1. P.1-15.
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Published
2011-06-24
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Section
Thermal Physics and Theoretical Thermal Engineering
