FIELD: methods of separation of media at inhomogeneous field of densities. SUBSTANCE: first preliminary joint separation of combustible component and helium from air is performed in vortex unit for separation of media at inhomogeneous field of densities and at different molecular masses of components; then mixture of separated combustible component and helium is directed as fuel to thermotechnical device where combustible component is burnt; mixture of waste gases obtained after burning is directed to additional vortex unit for separation of media at inhomogeneous field of densities and at different molecular masses where helium is separated from mixture. EFFECT: enhanced economical efficiency of method. 3 cl, 7 dwg
