Численные и экспериментальные исследования вихревых плазменно-топливных систем для безмазутного воспламенения энергетических углей

В.Е. Мессерле; А.Б. Устименко; Ю.Е. Карпенко; М.Ю. Чернецкий; А.А. Дектерев; С.А. Филимонов

doi:10.18321/

Authors

V.E. Messerle Institute of Combustion Problems, 172, Bogenbai Batyr st., 050012, Almaty, Kazakhstan; Siberian Federal University, 79, Svobodnyi ave., 660041, Krasnoyarsk, Russia; Institute of Thermophysics of SB RAS, 1, academician Lavrentiev ave., 630090, Novosibirsk-90, Russia
A.B. Ustimenko Research Institute of Experimental and Theoretical Physics KazNU, al-Farabi st. 71, 050040, Almaty, Kazakhstan
Yu.E. Karpenko Branch Centre of Plasma-Energy Technologies, Pushkin st. 33, Gusinoozyorsk, 671160, Russia
M.Yu. Chernetski Siberian Federal University, 79, Svobodnyi ave., 660041, Krasnoyarsk, Russia; Institute of Thermophysics of SB RAS, 1, academician Lavrentiev ave., 630090, Novosibirsk-90, Russia
A.A. Dekterev Siberian Federal University, 79, Svobodnyi ave., 660041, Krasnoyarsk, Russia; Institute of Thermophysics of SB RAS, 1, academician Lavrentiev ave., 630090, Novosibirsk-90, Russia
S.A. Phillimonov Siberian Federal University, 79, Svobodnyi ave., 660041, Krasnoyarsk, Russia

DOI:

https://doi.org/10.18321/

Keywords:

Combustion, pulverized coal fuel, thermochemical preparation, plasma, boiler furnace, numerical modeling

Abstract

The work carried out investigations of feeding pulverized coal and its combustion in the boiler furnace with plasma-fuel systems. The results of the three-dimensional simulation of conventional coal combustion and combustion of coal which has been activated plasma system in the combustion chamber are presented. Numerical study of vortex plasma-fuel system with fuel mixture via snail feeding apparatus using CFD software Fluent are carried out. The dependence of the trajectory of fuel mixture in the vortex plasma-fuel system from the angle of rotation of the snail is found. The op-timal rotation angle at which the stability of the plasma ignition of pulverized coal flame is determined. It is shown that the use of plasma-fuel systems on coal-fired boilers increases combustion efficiency of coal power while reducing emissions. Test of plasma-fuel systems at a boiler BKZ-420-2 of Almaty TPP during its startup from the cold state confirmed the possibility of ignition of high-ash Ekibastuz coal using unheated primary air.

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