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Information × Registration Number 0226U001062, (0121U107492) , R & D reports Title To improve the methods of pneumo-mechanical intensification of grain cleaning and fractionation processes and develop technical means for their implementation popup.stage_title Удосконалити способи пневмо-механічної інтенсифікації процесів очищення і фракціонування зерна та розробити технічні засоби для їх реалізації Head Stepanenko Serhii Р., Кандидат технічних наук Registration Date 20-01-2026 Organization Institute of mechanics and automatics of agroindustrial production of the National Academy of agrarian sciences of Ukraine (imaap naas) popup.description1 The goal is to improve the quality of cleaning grain mixtures to 90-95%, reduce injuries and damage to grain to 0.1-0.2% while reducing energy costs by 20-25% by justifying new methods of cleaning, separation, fractionation of grain and seeds, as well as improvement of technical and technological processes of separation of grain and seed mixtures according to the complex of physical and mechanical properties of components popup.description2 GRAIN, SEEDS, PNEUMO-MECHANICAL SEPARATION, GRAIN FRACTIONATION, CLEANING EFFICIENCY The report presents the results of research work aimed at theoretical and experimental substantiation of the processes of fractionation of grain and oilseed seeds in vibro-pneumatic environments using a pulsating air flow. An analysis of modern technological solutions in the field of vibro-pneumatic separation is carried out. The prospects of using a combined pneumo-mechanical effect, which combines vibrational action with a pulsating air flow, are shown, which contributes to the intensification of the intralayer movement of particles and the improvement of the conditions for the formation of stable fractions. In the course of theoretical studies, the regularities of the movement of grain particles in a vibro-pneumatically fluidized bed were established and the influence of air pulsation parameters on the quality of density separation was determined. An experimental sample of a combined vibro-pneumatic separator with improved geometry of the working surface and a pulsating flow formation system was created and refined. A set of laboratory experimental studies was performed, which confirmed the increase in fractionation efficiency, improved uniformity of the velocity diagram and reduced losses of full-fledged seeds. In addition, production tests were carried out in real conditions of operation of post-harvest units, the results of which established the stability of the technological process and the compliance of quality indicators with the requirements of seed production. The results obtained form the scientific and technical basis for the creation of a new generation of high-performance machines for cleaning and fractionating seeds, aimed at increasing productivity, reducing energy consumption and ensuring high quality of seed material. The materials of the work can be used to modernize existing technological lines and design innovative complexes for post-harvest grain processing. Product Description popup.authors Alvian Y. Kuzmych Perepelitsa Nataliya Mihaylovna Ihor Popadiuk Maryna Y. Bulyhina Daryna A. Volyk Vitalii Melnyk popup.nrat_date 2026-01-20 Close