Combustion processes in furnace chambers of Kazakhstan TPPs using high-ash coal

  • A. S. Askarova Faculty of physics and technology, al-Farabi Kazakh National University, Almaty, Kazakhstan
  • S. A. Bolegenova Faculty of physics and technology, al-Farabi Kazakh National University, Almaty, Kazakhstan
  • S. A. Bolegenova Faculty of physics and technology, al-Farabi Kazakh National University, Almaty, Kazakhstan
  • V. U. Maximov Faculty of physics and technology, al-Farabi Kazakh National University, Almaty, Kazakhstan
  • A. O. Nugymanova Faculty of physics and technology, al-Farabi Kazakh National University, Almaty, Kazakhstan
  • P. Safarik Faculty of mechanical engineering, Technical University in Prague, Prague

Abstract

 In this article, carried out computational experiments to study the aerodynamic, thermal and concentration characteristics in combustion chamber of the boiler BKZ-420 Almaty TPP-2. Combustion chamber BKZ-420 has a significant drawback, which is that of a jet of hot air hitting the wall that is opposite the burners. This leads to her firing and a further violation of integrity. On the Almaty CHP-2 in the basic mode using this wall served cold the air mass flow 5 kg/s. In this paper, we proposed a new flow mode, which allows you to protect the wall from overheating, to reduce the temperature of the incoming flow more cold air. Carried out researches have allowed to conclude that the proposed regime provides not only protection against overheating of the boiler walls, but also reduces the concentration of harmful emissions. As a result of computer experiments were obtained fields of velocity, temperature, concentrations of harmful dust and gas emissions (CO, CO2, NO2) formed in combustion of solid fuels for different layout options holes and speed boost-extra air (5kg/s and 10 kg/s).

 
 


 

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АнглийскийИспанскийИтальянскийКазахскийКитайский ТрадКитайский УпрКорейскийРусскийТурецкийФранцузский
 
АнглийскийИспанскийИтальянскийКазахскийКитайский ТрадКитайский УпрКорейскийРусскийТурецкийФранцузский
 
 
 
 
 


 
 
 
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Published
Dec 25, 2017
How to Cite
ASKAROVA, A. S. et al. Combustion processes in furnace chambers of Kazakhstan TPPs using high-ash coal. International Journal of Mathematics and Physics, [S.l.], v. 8, n. 2, p. 51-60, dec. 2017. ISSN 2409-5508. Available at: <http://ijmph.kaznu.kz/index.php/kaznu/article/view/232>. Date accessed: 11 dec. 2018.