MATEC Web Conf.
Volume 115, 2017XXXIII Siberian Thermophysical Seminar (STS-33)
|Number of page(s)||4|
|Section||Chapter 6 Power engineering, energy efficiency and energy saving|
|Published online||10 July 2017|
Numerical study of aerodynamics and brown coal combustion in the vortex furnace with air excess variation
Kutateladze Institute of Thermophysics SB RAS, 630090 Novosibirsk, Russia
* Corresponding author: email@example.com
The results of numerical modelling of 3D turbulent two-phase reacting flow with account for all the principal heat and mass transfer processes during the pulverized brown coal combustion in the vortex furnace of a power plant boiler unit have been presented. For two computational cases where air excess coefficient α was varied (set to 1.15 and 1.25), the detailed aerothermochemical 3D structure of reacting flow in the furnace volume has been revealed. The comparison of integral heat engineering parameters and NOx emissions obtained in the two cases has shown a slightly improved vortex furnace performance in the case α=1.25.
© The Authors, published by EDP Sciences, 2017
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