Development of a burner design for an oxygen-fuel combustion chamber

One of the ways to reduce harmful emissions from thermal power plants is to switch to the operation of oxygen-fuel energy complexes that efficiently produce electricity with zero emissions. One of the key elements of oxygen-fuel complexes is the combustion chamber, in which natural gas is combustion in an environment of pure oxygen and carbon dioxide. An important task in developing the design of the combustion chamber is the design of a burner device, which supplies fuel and oxidizer to the volume of the combustion chamber. The main requirements for carbon dioxide burners are: to ensure stable combustion and a low level of underburning. In this paper, using numerical modeling using the following sequence of programs ANSYS CFD Fluent, Energico and Chemkin Pro, a burner device design has been developed, using which it is possible to organize stable combustion at a wide range of values of the mass fraction of carbon dioxide in a mixture of oxidizer and diluent. In addition, the proportions of combustion components were determined, which produce a minimum amount of unburned hydrocarbons and carbon monoxide in the flue gases at the outlet of the combustion chamber.