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Thermophysics and Aeromechanics

2002 year, number 4

Numerical modelling of furnace processes at the combustion of high-ash Ekibastuz coal

A.S. Askarova, S.A. Bolegenova, I.V. Loktionova, and E.I. Lavrishcheva
Al-Farabi Kazakh National University, Almaty, Kazakhstan
Pages: 559–569

Abstract

Basing on the three-dimensional equations of convective heat and mass transfer the processes of the combustion of a high-ash coal-dust fuel have been modelled numerically in the regions of real geometry (the PK-39 furnace chamber of the Aksuy State Regional Electric Station (SRES)). The distributions of temperature and NOx concentrations are given over the furnace chamber height. The computed results are compared with experimental data obtained at the SRES. An analysis shows that the modelling and experimental results are in a good agreement, and the distribution of the nitrogen oxides over the torch length and the level of their extension in the atmosphere are close to industrial ones.