The present paper reveals one of the energy efficient ways of science investigation of materials for light construction purposes. The small hollow spheres made from different materials could change the weight of a construction part essentially, used as acoustic and thermal insulation and also as protection against vibrations. They can be used as a unit cell for big parts and alone filled with an inert gas, e.g. fusion targets. Pure tin shells were produced in transient (thixotropic) state of materials at elevated temperatures (close to the melting point of the pure tin melt) and several simulation steps were used, to determine the preferable boundary conditions. To one of them belongs the investigation of the temperature fields during the formation process. The formation force was determined theoretically. Also a theoretical assumption, that the solid material needs the same deformation force value or close to it, the numerical investigation was also carried out in FE-code QForm-3D.
Experimental and Numerical Investigation of Centrifugal Vortex Pump Operating Benefits for Energy Efficient Systems
