Volume nucleation of supersaturated vapour under decreased pressure of carrier gas

Subject of inquiry is nucleation in glycerine - nitrogen steam-and-gas system. The aim of the work is to develop method of flowing diffusion chamber, to elaborate determination procedure for critical nuclei parameters from experimental data. Determination procedures for phase boundary contribution value to Gibbs energy of critical nuclei under hataromolecular nucleation have been substantiated theoretically for the first time; carrier gas molecules quantity in critical nuclei. Nucleation rate under nitrogen pressures equal to 60, 70, 80, 90 kPa has been determined experimentally for glycerine - nitrogen steam-and-gas system. Nucleation rate dependence upon nitrogen pressure has been disclosed. Critical nuclei parameters have been calculated on the basis of experimental data. In fluence of phase transition upon these parameters in critical nuclei has been revealed. The results of the work have been used at aerosol laboratory of Institute for Carbon Materials, Siberian Branch of the Academy of Sciences of Russia in the process of nucleation investigation in steam-and-gas systemsAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio