3D-modeling of the formation of harmful components the combustion of pulverized coal dust in the volume of the combustion chamber of the boiler BKZ-75 Shakhtinskaya CHP
Keywords:
3D-modeling, geometrical modeling, modeling of processes, solid fuel, heat mass exchange, furnace devices, physical model, harmful dust and gas componentsAbstract
The study aims to examine the formation of harmful components during the combustion of pulverized coal dust in the volume of the combustion chamber of the boiler BKZ-75 Shakhtinskaya СHP. Based on the numerical solution of the system of equations of convective heat and mass transfer, taking into account the kinetics of chemical reactions, two-phase flow, nonlinear effects of convection and radiation heat transfer methods and three-dimensional modeling, it is necessary to identify the formation of carbon monoxide gas throughout the volume of the combustion chamber, in its main sections and at the exit. The research results will be used to generate recommendations for optimization of existing technologies for burning low-grade coal fuel to Kazakhstani fields, with the aim of improving process efficiency by burning fuel in real power plants with the most efficient energy and minimal harmful impact on the environment.
References
2 Askarova A.S., Messerle V.E., Loktionova I.V., Ustimenko A.B. 3D Modeling of the Two-Stage Combustion of Ekibastuz Coal in the Furnace Chamber of a РК-39 Boiler at the Ermakovo District Power Station // Thermal Engineering.– Vol. 50, №8, 2003. – P. 633-638.
3 Aскaровa A.С. Тепломaссоперенос при сжигaнии твердого топливa в промышленных котлaх нa примере Пaвлодaрской ТЭЦ // Теплофизикa
и aэромехaникa, Новосибирск, СО РAН. – 2000. – T. 7, №2. – C. 293-300.
4 AskarovaA.S., LavrishchevaE., LoktionovaI.V. The modeling of physical-chemical technological process in the fire chambers equipped by swirl burners // Materials of the 16th Int. Congress of Chemical and Process Engineering CHISA 2004. – Prague, 2004. – Р.978-979.
5 Askarova A.S., Bolegenova S.A., Bekmuhamet A., Maximov V.Yu. Mathematical simulation of pulverized coal in combustion chamber // Procedia Engineering. – ISSN 1877-7058. – Vol. 42, 2012. – P. 1259-1265.
6 Askarova A.S., Bolegenova S.A., Bekmuhamet A., Maximov V.Yu., Ospanova Sh.S. Numerical research of aerodynamic characteristics of combustion chamber BKZ-75 mining thermal power station // Procedia Engineering. – ISSN 1877-7058. – Vol. 42, 2012. – P. 1250-12-59.
7 Askarova, A., Karpenko, E., Lavrishcheva, Ye.,Messerle, V., Ustimenko, A. Plasma-supported coal combustion in boiler furnace // IEEE Transactions on Plasma Science. – Vol. 35, Issue 6, 2007. – P. 1607-1616.
8 Smoot L.D. Pulverized Coal Diffusion Flames: A perspective through the modeling // Works of 18th Symposium on Combustion. – Oxford, 1981. – Р. 1185-1202.
9 Бухмaн С.В., Вулис JI.A. О темперaтуре, скорости и времени сгорaния угольных пылинок // Труды Институтa энергетики AН Кaз. ССР. – Aлмa-Aтa: Изд. AН КaзССР, 1958.– С. 61-76.
10 Askarova A.S., Bolegenova S.A., Bolegenova S., Bekmukhamet A., Maximov V.Yu., Beketayeva M.T. Numerical experimenting of combustion in the real boiler of CHP // International Journal of Mechanics. – ISSN: 1998-4448. – Vol. 7, Issue 3, 2013. – Р. 343-352.
11 Askarova A.S., Bekmukhamet A., Bolegenova S.A., Beketayeva M.T., Maximov Yu.V., Ospanova Sh.S., Gabitova Z.K. Numerical modeling of turbulence characteristics of burning process of the solid fuel in BKZ-420-140-7c combustion chamber // International Journal of Mechanics. – ISSN: 1998-4448. – Vol. 8, 2014. – P. 112-122.
