According to experts, the power-generating complex in the entire chain from fuel production to the thermal energy application efficiency of the use of energy resources is only 44 %. That necessitates the researching of ways to enhance efficiency of organic fuel burning. One of the way to solve the problem is the burning fuel in the swirl burner with using of ionizated air. Domestic and international researches have shown that atomic oxygen increases the completeness combustion and reduces the number emitted into the atmosphere of pollutant emissions. At present, the reduction of air pollution of toxic substances allocated by industrial enterprises, is one of the most important problems facing humanity. Air pollution has a unhealthy exposure for humans and the environment. In this paper estimated effectiveness of existing chemical kinetic mechanisms of natural gas burning for the swirl burner and mechanisms unhealthy emissions produced based on the results of the evaluation. The purpose of work is to increase the effectiveness of fuel combustion and technical and economic, as well as environmental indicators in the swirl burner on the heat-and-power plant.

This article analyzes the mechanism of formation of the main components of harmful emissions characteristic of combustion chambers operating on conventional hydrocarbon fuels. The method of combustion of a preliminarily prepared depleted air–fuel mixture was chosen as the object of the study. This method of suppressing harmful emissions was implemented in the design of a low-toxic combustion chamber developed as applied to the GT-009 M type unit with impact cooling of the burner pipe and provides for stabilization of the main kinetic flame by means of a diffusion-kinetic and a standby burner device. The results of the calculations performed with regard to the operating conditions of the low-toxic combustion chamber at the nominal load of GT-009 M allow us to conclude that the practical use of combustion of a depleted, preprepared, fuel–air mixture in combination with diffusion-kinetic stabilization of combustion is promising. The topic of this article is related to the problem of ecological improvement of gas turbine unit combustion chambers, which determines its utmost importance and relevance.