NUMERICAL INVESTIGATION OF HEAT TRANSFER CHARACTERISTICS DURING THE COMBUSTION OF SOLID FUEL IN PULVERIZED IN THE COMBUSTION CHAMBER OF THE BOILER BKZ-420
This article is devoted to the study of thermal characteristics of the process when burning solid fuel pulverized in the combustion chamber of the boiler BKZ-420. The greatest changes in the temperature distribution observed in the central portion of the combustion chamber in the fuel supply and the air fuel mixture through the burner openings. Study thermal characteristics is an important step process modeling heat and mass transfer from the combustion of pulverized coal, which allows to determine the temperature field throughout the volume of the combustion chamber and outlet. Computational experiments on the thermal and concentration characteristics of the combustion chamber of the boiler BKZ-420 Almaty CHP and temperature fields are obtained. Offer the best structural parameters of the combustion chamber of the boiler BKZ-420 Almaty CHP on which to develop an optimal combustion technology of high-energy fuel, allowing to increase the wear resistance of power and reduce emissions of harmful substances into the atmosphere.