https://elib.belstu.by/handle/123456789/20516 Sun, 12 Apr 2026 04:26:28 GMT 2026-04-12T04:26:28Z https://elib.belstu.by/handle/123456789/12159 Title: Hydrodinamics of liquid film on cylindrical surface Authors: Volk, A. V.; Vilkotski, A. I.; Yarmolik, S. V. Abstract: A theoretical study of the film movement of the liquid phase on the surface of a permeable cylinder under the influence of the mass forces of gravity and the swirling gas flow has been carried out. The differential equations of motion were determined for the first time, the exact solutions for the velocity components provided adhesion film on the surface of permeable cylinder and equality of shear stresses at the interface were calculated to determine the thickness of the film and its pressure on the cylindrical surface. Theimpact of the outflow of the liquid phase on the hydrodynamics of film flow was analyzed. The resulting mathematical model allows taking into account the hydrodynamics of the film during the filtration, separation and heat exchange processes. Tue, 01 Jan 2013 00:00:00 GMT https://elib.belstu.by/handle/123456789/12159 2013-01-01T00:00:00Z https://elib.belstu.by/handle/123456789/12158 Title: Destructive efficiency of grinding media in horizontalplanetary mill Authors: Vaytekhovich, P. E.; Khvesko, G. M.; Kozlov, P. S. Abstract: The paper presents methods for calculating the destructive capacity of grinding media contained in a planetary mill, the main types of deformation such as compression, impact and abrasion. The results of calculation for one complete revolution drove at different angular speeds grinding drum. Found that the breaking strength of all types ofloading exceeds the tensile strength of the material. Tue, 01 Jan 2013 00:00:00 GMT https://elib.belstu.by/handle/123456789/12158 2013-01-01T00:00:00Z https://elib.belstu.by/handle/123456789/12157 Title: Separation of the mixture of shredded acrylonitrile-butadiene-styrene and polyamide by flotation method using sulphanole and synthanol as sufractants Authors: Opimakh, E. V.; Levdanski, A. E. Abstract: A method of flotation separation of a mixture of widely used polymers acrylonitrile butadiene styrene and polyamide was analyzed. The experiments were performed on a laboratory flotation turret with air aeration of the pulp. The formulas of key indicators flotation are presented. In this case, we obtained the dependencies of the concentration of surface-active substances, and the air flow on the purity concentration and extraction of float component. The optimal conditions for the flotation process of the polymer mixture were determined. It is concluded that the flotation separation of polymers based on their selective wettability is promising for the processing of mixed plastic waste. Tue, 01 Jan 2013 00:00:00 GMT https://elib.belstu.by/handle/123456789/12157 2013-01-01T00:00:00Z https://elib.belstu.by/handle/123456789/12156 Title: Multidimensional computer model for heat exchange processes in pools of the extracts of spent nuclear fuel from npp Authors: Andrizhievski, A. A.; Trifonov, A. G.; Pronkevich, T. Y. Abstract: A model for estimation of heat and mass transfer processes in the basins of the extracts of spent nuclear fuel from NPP reactor VVER-1200 with varying degrees of filling is presented. For the calculation of transport processes in the racks of basins of the extracts the porous body model is proposed, which allowed carrying out a model description of complex constructions. It is shown that excessive tight pack of “fresh” spent nuclear fuel can lead to a significant temperature rise of the spent nuclear fuel. According to the results of numerical simulation, the filling levels of spent nuclear fuel do not exceed 20% for “fresh”fuel. Tue, 01 Jan 2013 00:00:00 GMT https://elib.belstu.by/handle/123456789/12156 2013-01-01T00:00:00Z