Reduction of noxious substance emissions at the
pulverized fuel combustion in the combustor of the BKZ-160 boiler of the Almaty
heat electropower station using the “Overfire Air” technology
A.S. Askarova1, V.E. Messerle2, A.B. Ustimenko3, S.A. Bolegenova1, S.A. Bolegenova1, V.Yu. Maximov1, and A.B. Yergalieva1
1Al-Farabi Kazakh National University, Almaty, Kazakhstan
2Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
3Scientific Research Institute of Experimental and Theoretical Physics, Almaty, Kazakhstan
E-mail: aliya.askarova@kaznu.kz, maximov.v@mail.ru
Keywords: heat and mass transfer, combustion, overfire air, computational experiment
Pages: 125–134
Abstract
The computational experiments using the “Overfire Air” (OFA) technology at the coal dust torch combustion in the combustor of the BKZ-160 boiler of the heat power plant No. 2 in Almaty have been conducted. The results show a possibility of reaching a reduction of the emission of noxious nitrogen oxides NOx and minimizing the energy losses. The results
of numerical experiments on the influence of the additional air supply on
the main characteristics of heat and mass transfer are presented. A
comparison with the base regime of the solid fuel combustion when there is no
supply of the additional air (OFA = 0 %) has been made.
DOI: 10.1134/S086986431601013
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