Engineering, Energy, Transport AIC

Iryna Gunko – Candidate of Technical Sciences, Professor of the Department of Agricultural Engineering and Technical Service of the Vinnytsia National Agrarian University (Sonyachna St., 3, Vinnytsia, 21008, Ukraine, email: irynagunko@vsau.vin.ua, https://orcid.org/0000-0001-5470-7413).
Andriy Myzyuk – postgraduate student of the Department of Agroengineering and Technical Service of Vinnytsia National Agrarian University (3 Sunny Street, Vinnytsia, 21008, Ukraine, e-mail: www3777www@gmail.com, https://orcid.org/ 0000-0002-4238-8256).

The doctrine of food security lists critical products for Ukraine and the minimum level of their own production. Potatoes are among these products. Despite the fact that the country's needs are almost completely covered by potatoes produced on the territory of our state, in recent years more and more attention has been paid to increasing the yield of the crop. Pre-sowing treatment helps to increase the yield of crops. The main method of pre-sowing preparation of potatoes is to treat the planting material with drugs to protect against pests and diseases.
The main method of pre-sowing seed preparation is poisoning with chemical preparations against pests and diseases. It is widely used in intensive agricultural technology and allows to reduce potential crop losses by 50-55%. The applied technical means, which ensure uniform and complete coverage of the surface of the seed material, have distributors that create drops of different diameters. In the best case, it is possible to control the average particle size, and large weight fractions of different particle sizes reduce the processing efficiency and negatively affect the uniformity of the coating. In this regard, one of the main tasks of the used technical means is to obtain drops of the same (monodisperse) size. Moreover, their size should be within 20 - 50 μm.. It is quite time-consuming to select the correct parameters of a technical device to achieve these aerosol sizes experimentally, therefore it is necessary to develop mathematical models of seed processing with different types of sprayers, which will tell in which direction scientific developments should be conducted .\
For the model of the technological process of processing, the design and technological parameters and operating modes of the spraying system can be used as initial conditions, and the parameters of the distribution system of aerosol droplets, seed material and drug as boundary conditions (the speed of the air flow created by the fan, the amount of working fluid that provided, design parameters of the processing chamber).

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