Numerical modeling of combustion of gaseous and solid fuels in the furnaces of small and large boilers to reduce harmful emissions

Abstract

The issues of the formation of toxic compounds that enter the air of the residential area during the circulation of household waste and the provision of energy supply services, in particular, during the decentralization of heat supply to residential buildings, are considered. The problems of finding the optimal ways to reduce toxic emissions are solved using a numerical experiment based on computational fluid dynamics. The results of numerical modeling of the corresponding combustion device are compared with the geometry created using the Gambit software and in the Solid Edge 3D design environment. The influence of the pressure in the furnace on the characteristics of fuel combustion during operation in the pressurization mode of the recently widespread condensing boilers is given. Acceptable simplifications for the application of the normative method in the calculations of modern combustion devices with a specific geometry are proposed.

Applying the Random Forest Method to Improve Burner Efficiency

“…The introduction of a separating insert into the air nozzle made it possible to intensify the mixing of gaseous media. Zheltukhina E. considered the formation of toxic compounds and the possibility of modeling combustion processes to reduce them [21,22]. NO X emissions can be controlled by limiting the amount of available oxygen that can combine with nitrogen to form nitric oxide (NO).…”