Experimental Study of the Emission Characteristics and Stable Combustion Range of a Multicomponent Hydrogen-Containing Fuel in Countercurrent Swirling Flow

This paper presents an experimental study of the lean and ultra-lean combustion of a multicomponent hydrogen-containing fuel in swirling flow under aerodynamic counterflow conditions. The subject of research was a counterflow burner module, which can be used to carry out the diffusion-kinetic combustion of a mixture of methane and a multicomponent hydrogen-containing gas in different concentration ratios. The experiments showed that the addition of the multicomponent fuel to methane extends the stable combustion range of lean mixtures and provides a reduction in the emission of polluting components in combustion products. These results can be used to increase the efficiency, safety, and service life of combustion chambers of gas turbine engines and power plants.