Browsing by Author "Kutsenko, Yuriy"
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Item Дослідження нагріву приводних електродвигунів вальцьового станка лінії виробництва борошна(КНТУ, 2014) Куценко, Ю. М.; Kutsenko, YuriyРобота присвячена дослідженню процесів нагріву трифазних асинхронних двигунів приводу вальцьового станка. Проведено моделювання процесу нагрівання в середовищі MATLAB 7.1 в пакеті Simulink. Отримані графічні залежності нагріву приводних електродвигунів від режиму роботи станка, етапу виробництва борошна. The work examines the heating processes of three-phase asynchronous motor of the drive of rolling machine. The simulation of the heating process is performed in environment MATLAB 7.1 package Simulink. Graphical dependence of heating of electric drive motors from the operating mode of machine, and stage of production of flour. During desing of electric drive reliability, weight and dimensions , static and dynamic parameters that define the most important parameter - the power of the motor must be ensured. To determine the power of the drive motors calculations of structural parameters rolling machine are performed. As a result, calculations and simulations conducted found that in presence of radial oscillations of the power required to drive the rolling machine, is increased proportionally to the total oscillation for the above calculations on 4,00% for amplitude and 8,15 % for parameters of losses and heating of drive motors. Modeling of the process of heating of electric drive motors of rolling machine for heating time constant Tне enables reasonable choice of electric motors, power. This takes into account the stages of production of flour and ensures the quality of products produced.Item Дослідження якості соняшникової олії методом експрес-контролю(КНТУ, 2014) Куценко, Ю. М.; Кушлик, Р. В.; Kutsenko, Yuriy; Kushlyk, RomanРобота присвячена вивченню можливості контролю якісних показників соняшникової олії неруйнівним ультразвуковим методом. Проведено експериментальні дослідження, встановлено залежність коефіцієнта поглинання ультразвуку від концентрації вологи в соняшниковій олії. The paper is dedicated to studying the possibility of quality parameters control of sunflower oil by means of nondestructive ultrasonic method. Moisture content is one of the indicators of sunflower oil quality. To determine the concentration of moisture in sunflower oil we use methods according to DSTU ISO 662:2004 Animal and vegetable fats and oils - Determination of moisture and volatile matter content (ISO 662:1998, IDT). The acoustic method is one of the effective experimental methods for assessment of the kinetic properties of the liquids. We have conducted a study on the propagation of velocity and absorption coefficient of ultrasound in vegetable sunflower oil in experimental setup . We obtained results of measurements of the absorption coefficient of ultrasonic waves in samples of sunflower oil in the range of ultrasonic frequencies 500 kHz - 5 MHz at different concentrations of water in samples 0; 0.15 ; 0.3 ; 0.5; 1.0 wt. %. The dependence of the absorption coefficient of ultrasound on the concentration of moisture in sunflower oil is determined on the ground of obtained data. Correlation - regression analysis indicates a sufficiently high value of the relation between absorption coefficient of ultrasound and concentration of water in sunflower oil. The coefficient of determination is R2 = 0,9915. This dependence can be used in design of acoustic express method of water control in vegetable oils.