Features of the formation of charged and neutral nanoparticles in hydrocarbon-air flames

The formation of charged and neutral nanoparticles in plasma generated during the combustion of hydrocarbon fuels on the basis of a comprehensive analysis of the production and interaction processes in the gaseous and condensed phases is presented. A kinetic model is considered that determine the dynamics of the formation of a polydispersed charged particles and the processes involving these clusters. Estimates show that the formation of ions in flames, the formation of the primary clusters and particles, and their interaction with the ions have a slight effect on the main parameters of hydrocarbon combustion in air. In atmospheric flames with a wide range of particle sizes, the molecular interaction proceeds in the free-molecular regime, in which the aerosol Knudsen number is greater than or equal to 1.