SIMULATION OF COAL COMBUSTION IN A PULVERIZED COAL-FIRED BOILER

DOI: 10.1615/ICHMT.2008.CHT.1680
15 pages

M. J. Chernetsky
Institute of Thermophysics of SB RAS, Krasnoyarsk branch, 50/44 Akademgorodok, Krasnoyarsk, 660036, Russia

A. A. Dekterev
Institute of Thermophysics of SB RAS, Krasnoyarsk branch, 50/44 Akademgorodok, ICM SB RAS, TORINS, Krasnoyarsk, 660036; Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences, 1 Akad. Lavrentiev Ave., Novosibirsk, 630090

A. A. Gavrilov
Institute of Thermophysics of SB RAS, Krasnoyarsk branch, 50/44 Akademgorodok, ICM SB RAS, TORINS, Krasnoyarsk, 660036; Institute of Thermophysics of SB RAS, Ac. Lavrentieva ave. 1, Novosibirsk, Russian Federation, 630090; Novosibirsk State University, Pirogova st., 2, Novosibirsk, Russian Federation, 630090

Abstract

Based on the Euler/ Lagrange approach for turbulent reacting gas-particle flows with combusting pulverized coal particles, a comprehensive model for pulverized coal combustion was developed by incorporating a model of pulverized coal devolatilization and char combustion, a model of NO_x formation and a model of ash deposition. Applicability of a comprehensive model was validated by comparing its predictions with the experimental data of a laboratory-scale pulverized-coal combustion burner. The model was applied for the simulation of the coal-fired boiler of the Tom-Ussinskaja GRES.