Control of Harmful Emissions Concentration into the Atmosphere of Megacities of Kazakhstan Republic

Abstract

Solid fuel plays significant role in the development of civilization as the main fuel source. Use of low-grade (ash content ~ 40-45%) coal is partially offset environmental problems also affect human health when it is burned. As the main industrial corporations use coal, in particular low-grade high-ash content coal from Ekibastuz coal basin because of its cheap cost the atmosphere of megacities like Almaty is polluted by noxious volatile. In this study were developed a mathematical model of turbulent heat and mass transfer process occurring in the combustion chamber of SB-39 of Aksusskaya TPP for control the concentration of volatile and to recommend the optimize methods for burning process. Based on 3D computer modeling investigated formation of harmful dust and gas emissions during the combustion of low-grade coal and offered cost-effective methods of burning.

3d Modeling of Heat Transfer Processes in the Combustion Chamber Boiler of Thermal Power Plants

“…2b). The resulting finite-difference grid has the resolution of 110×61×150 or 1 006 500 control volumes [31][32][33][34][35][36].…”

Optimization of the Solid Fuel Combustion Process in Combustion Chambers in Order to Reduce Harmful Emissions

“…For conducting numerical experiments, the combustion chamber of the BKZ-75 boiler was installed at the Shakhtinskaya TPP (Shakhtinsk, Kazakhstan), in which Karaganda coal with an ash content of 35.1% is burned. Steam boiler BKZ-75 -vertically water-tube, productivity 75 t/h (51.45 Gcal/h) [22][23][24][25][26][27]. The boiler is equipped with four pulverized coal burners installed in two burners from the front and from the rear in one tier.…”

Numerical modeling of pulverized coal combustion at thermal power plant boilers

“…Program FLOREAN is based on the numerical solution of the Reynolds averaged balance equations for mass, species, energy and momentum [12] . This program was used on other boilers of thermal plants and shows believable results with good accuracy of 2% [13][14][15] .…”