Pulverized coal torch combustion in a furnace with plasma-coal system
V.E. Messerle, A.B. Ustimenko, A.S. Askarova, A.O. Nagibin
Keywords: combustion, pulverized coal, plasma, boiler furnace, three-dimensional simulation, model verification
Pages: 436-444
Abstract
Combustion of a pulverized coal torch has been numerically simulated on the basis of the equations of multicomponent turbulent two-phase flows. The results of three-dimensional simulation of conventional and plasma activated coal combustion in a furnace are presented. Computer code Cinar ICE was verified at coal combustion in the experimental furnace with thermal power of 3 MW that was equipped with plasma-fuel system. Operation of the furnace has been studied at the conventional combustion mode and with plasma activation of coal combustion. Influence of plasma activation of combustion on thermotechnical characteristics of the torch and decrease of carbon loss and nitrogen oxides concentration at the furnace outlet has been revealed.
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