The necessary intensity of burning and completeness of fuel burning out in furnace volume are reached by the correct supply organization and the subsequent mixture of fuel with secondary air that is provided with burner devices. Experimental research of fuel oil and gas combustion efficiency in boiler furnaces of thermal power plant has shown that, the peripheral axial twist executed in the form of two channels with axial scapular air rotator is preferable. The combined gas supply is perspective: tubular peripheral and pilot central. For fuel oil combustion at large expenses the most effective burning is reached due to application of steam-mechanical nozzles which main lack is the considerable length of a torch. The two-tiered arrangement of burners in boiler at combustion of gas and fuel oil is more effective, in comparison with single-tier, both at the counter direction, and at unilateral frontal. For increasing the efficiency of combustion of fuel at some burners types in a boiler furnace the ascending vertical rotation of a torch can be created by the asymmetrical counter arrangement of burners of the first and second tiers. Use of the smoke exhauster of gases recirculation for reduction of harmful emissions of nitrogen oxides with boilers flue gases gives bigger effect in comparison with optimization of the choice of a layout arrangement of burners and parameter of a twist.

The object of the study is the water supply and sanitation system of an industrial enterprise. Currently, many enterprises do not use the treated industrial waste water in the water supply cycle. Therefore, the use of treated wastewater is of practical importance. The scheme of thermal treatment of waste water for obtaining pure condensate by evaporation is proposed. The main results of the study are the technical solution for the development of the enterprise's wastewater treatment complex. Pure condensate is obtained in an instant boiling evaporator. The research method is based on the calculation of energy costs in wastewater treatment for different types of waste water. The results of the study allow us to determine the optimal set of energy equipment for obtaining pure condensate and its further use. The specific practical significance lies in the development of a technical solution that helps the treatment of wastewater and the reduction of emissions into the water basin.

The efficiency of fuel combustion in power boilers of thermal power plants largely depends on the layout of the burners in the combustion chamber, on their number and unit capacity. An important condition for the efficiency of the selected combustion mode is the absence of a torch surge from the combustion products onto the screen heating surfaces of the furnace. To prevent the formation of large amounts of harmful emissions of nitrogen oxides into the atmosphere, the necessary requirement for burning fuels is to reduce the local values of the flame temperature in the volume of the furnace. The use of powerful burners in power boilers, with a decrease in their number, leads to an increase in the length of the torch and, with their frontal arrangement, gives a torch thrust onto the rear screen. The article presents the results of an experimental trail of the efficiency of gas burning in the direct-flow supercritical boiler TGMP-204HL of the Surgut GRES-2 PJSC UNIPRO when it is operating on 24 burners at various steam loads. The values of the efficiency of boilers, emissions of nitrogen oxides and the distribution of the radiation intensity of combustion products along the height of the furnace are given. Comparison of the obtained results on efficiency and emissions of nitrogen oxides with the data of the TGMP-204HL boiler using 36 burners is carried out.

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The article presents the results of experimental research of efficiency of fuel oil combustion in power boilers at TPPs with different layout of burners at different steam loads. Given the values of efficiency of boilers and of emissions of nitrogen oxides when burning fuel oil. The efficiency of using bunk steel counter arrangement of burners.