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Information × Registration Number 0226U002712, (0124U000636) , R & D reports Title Development of a mobile ejector-cleaning unit for the restoration of buildings, structures and equipment after fires in the war period popup.stage_title Розроблення методів та моделей для забезпечення дієздатності системи керування ежекторно-очисною установкою та виготовлення дослідного зразка Head Baha Vadym M., Кандидат технічних наук Registration Date 04-03-2026 Organization Sumy State University popup.description1 The aim of the project is to develop a more efficient design of the ejector cleaning unit's working nozzle and modernize the mobile common off-road platform with remote control capabilities popup.description2 The paper presents scientific and theoretical foundations of hydromechanical processes occurring in perforated working nozzles during abrasive blasting, taking into account hydrodynamic forces, porous inserts, and non-stationary motion of the dispersed phase. Mathematical models describing energy transfer from the working flow to abrasive particles and the treated surface are proposed, enabling refined estimation of compressed air and abrasive material consumption, as well as particle distribution within the working volume. An increase in the efficiency of pneumatic abrasive equipment is substantiated through the application of mechanical vibrations, which intensify the outflow of the air–abrasive mixture and enable the development of new energy-efficient flow channel designs. The erosion behavior of treated surfaces and working nozzles is investigated using a mathematical model that incorporates the Basset force in a fractional-order integro-differential form, ensuring reliable quantitative characterization of the process. The practical significance of the research lies in the development of a methodology for designing working nozzles of pneumatic abrasive units and calculating their key performance parameters and rational cleaning modes. The obtained scientific and practical results have been implemented in higher education curricula and applied in professional training programs for industrial specialists Product Description popup.authors Vadym M. Baha Ivan V. Pavlenko Tetiana S. Baha Serhii S. Diachenko Ruslan O. Kasian popup.nrat_date 2026-03-04 Close