Modeling the processes of combustion products formation in the coal-dust flame

  • A. Askarova
  • S. Bolegenova
  • V. Maximov
  • S. Aidabol
  • N. Otynshyeva

Abstract

In this paper deals with development and application the numerical model for solution of processes atcombustion chamber of the industrial boiler. The combustion chamber of the BKZ-75 boiler installed atShakhtinskaya Thermal Power Plant (Karaganda, Kazakhstan) was chosen as the object of the research.As a result of computational experiments obtained distribution of concentrations of harmful substances:CO2, CO, NO throughout the volume of the combustion chamber and on an output from it. In addition,the authors received a distribution of oxygen depending on the height of the combustion chamber. Theminimum and maximum values of the investigated characteristics are established. The dynamics of thechange in the characteristics of the heat and mass exchange process in the volume of the researchedcombustion chamber is shown. Obtained results give quantitative information on the amount ofcombustion products including harmful substances. The numerical model becomes a tool for investigationand design of combustion chambers with high-efficiency and reliable operation of boiler at thermal powerplants. The results of this research has high practical importance, they allow studying heat exchangeprocesses occurring in combustion in real geometry areas (combustion chambers of power plants).
Published
2018-05-03
How to Cite
ASKAROVA, A. et al. Modeling the processes of combustion products formation in the coal-dust flame. Physical Sciences and Technology, [S.l.], v. 3, n. 2, p. 49-56, may 2018. ISSN 2409-6121. Available at: <http://phst.kaznu.kz/index.php/journal/article/view/106>. Date accessed: 28 may 2018.
Section
Thermal Physics and Related Techology