Mathematical Simulation and Efficiency Investigation Recirculation of Flue Gases of a Power-Generating Boiler

Abstract

An increasing number of countries are now shifting their economies to low-carbon development, which has an impact on the energy sector. The goal of the transition to low -carbon development is to reduce the negative environmental impact. This article presents a simulation of the combustion process of a fuel-air mixture based on natural gas with the proposed organization of flue gas recirculation in the a power-generating boiler of the TGMT-464 type, using the Ansys Fluent software package. The article presents graphs of the distribution of the NO x content in the active combustion zone when the proportion of flue gas recirculation changes from 0 to 22 %. In the proposed process of organizing the flue gas recirculation on a power-generating boiler of the type TGME-464, the reduction in the emission of harmful substances is explained by a decrease in the peak temperature in the active combustion zone, which is the main indicator of the formation of thermal NO x . The article is intended for postgraduates, doctoral students interested in the development of methods for suppressing the formation of NO x in the combustion products of TPP boilers.