Кафедра механічної та електричної інженерії
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Item Assessment of the danger of using ultraviolet lamps in electrical systems(2024) Semenov, A. O.; Popov, S. V.; Yakhin, S. V.; Yeleussinov, B.; Sakhno, T. V.; Семенов, Анатолій Олексійович; Попов, Станіслав Вячеславович; Яхін, Сергій Валерійович; Сахно, Тамара ВікторівнаTo determine the photobiological safety of UV lamps, the following measurements were carried out: spectral irradiance, total actinic irradiance in the wavelength range of 200-400 nm, and irradiance in the UVA range (320-400 nm). These parameters were measured using the optical radiation system OST-300. The photobiological safety of LUF 40-1, LE 15 lamps and their radiation risk group are established in accordance with EN 62471. The levels of UV radiation generated by LE 15 low pressure discharge lamps at a distance of 0.25 m belong to the high risk group (GR3), and LUF 40-1 - in the group of insignificant risk (GR1). Calculations and recommendations on safe radiation doses when using lamps in electrotechnical systems of photobiological influence are given.Item Designing an improved structure of the tool for repairing the brake pipe connectors in vehicles(2021) Гнітько, Сергій Михайлович; Васильєв, Євген Анатолійович; Попов, Станіслав ВячеславовичItem Determination of optimal working parameters of technological equipment for renewable energy(Helsinki, Finland. International Science Group., 2023-06-08) Левченко, Юлія Вікторівна ; Попов, Станіслав ВячеславовичToday, the progress of modern technologies affects the increasing relevance of reducing the mass and size indicators of the solar power plant and the inconspicuousness of its operation. Mobile photovoltaic stations are developed and manufactured on the basis of photovoltaic converters. They represent an autonomous source of energy and can be used both in the field and for stationary use. The conducted research is aimed at the modeling and simulation of solar cells using the MathCAD environment. The influence of different solar radiation and installation parameters on the efficiency of the equipment has been determined.Item Development of Resource Effective and Cleaner Technologies using the Waste of Plant Raw Materials(Journal of Ecological Engineering (JEE), 2020-01) Khomych, G.; Krusir, G.; Horobets, O.; Levchenko, Yu. V.; Gaivoronska, Z.; Левченко, Юлія ВікторівнаThe expediency of implementing one or the other technology was determined by selecting the best ones from the point of view of environmental, economic and social aspects. Waste re-use is the second most acceptable technology after waste prevention or minimization during production. This scientific work is dedicated to the waste re-use in food production. The article presents the results of research and development of technologies of the use of organic waste - pomace of the juice production of Chaenomeles fruits in food production. It has been determined that vegetable waste occupies a significant place among the total amount of food waste. Ways of using the waste of the production of Chaenomeles juice have been developed and analyяed, which involve obtaining extract, gelling juice, powder, and ways of their use in the technology of flour-based products have been proposed. It is determined that the most effective is the use of powder from the pomace of Chaenomeles, which allows not only the maximum use of raw materials, but also to improve the technology of production of flour-based products, reducing the fermentation process, extend the shelf life of finished products and increase their biological value.Item DEVELOPMENT OF WAFERS WITH FILLINGS MADE FROM ORGANIC RAW MATERIALS WITH IMPROVED CONSUMER PROPERTIES(2020-11-11) Tkachenko, A.; Syrokhman, I.; Skrypnyk, V. O. ; Birta, G.; Burgu, Yu.; Скрипник, Вячеслав ОлександровичItem Devising technologies for harvesting hemp with belt threshers(2022-01-24) Sheichenko V. O. ; Shevchuk, V.; Dudnikov, I. A. ; Koropchenko, S.; Dnes, V.; Skoriak, Yu. B.; Skibchyk, V.; Шейченко, Віктор Олександрович; Дудніков, Ігор Анатолійович; Скоряк, Юлія БорисівнаItem Efficiency of gas preparation technology using a block drying plant(2023) Popov, S. V.; Petrash, O. V.; Petrash, R. V.; Levchenko, Yu. V.; Kelemesh, A. O.; Петраш, Олександр Васильович; Попов, Станіслав Вячеславович; Петраш, Руслан Васильович; Левченко, Юлія Вікторівна; Келемеш, Антон ОлександровичThe object of research is the technology of gas drying using a mobile block installation. The task to ensure compliance of the composition of natural gas with the values of a number of basic characteristics before its supply to main pipelines has been solved. The results of a complex analysis of the gas preparation technology of the deposit, which is located in an agricultural area and is at a late stage of exploitation, are reported. It was established that in order to ensure the supply of conditioned gas to the system of main gas pipelines under the conditions of low gas pressures, the construction of gas treatment plants is required, first of all, for its drying. The method of ensuring gas quality considered in the current paper involves the use of a block-type gas drying installation as part of a low-temperature separation installation and a source of artificial cold. As the latter, it is envisaged to use a freon-refrigerating unit. The study shows that the proposed block gas drying units can be unified for different gas productivity and are characterized by relatively low capital and operating costs. The main advantages of the introduction of gas preparation block installations and the scheme of connecting the installation to the existing line are presented. Based on the results of the economic efficiency indicators, it was established that the use of a block gas drying unit is a profitable project with the value of the accumulated reduced free cash flow of almost 843 thousand conditional units; the investment payback period is 3 years. The results could be effectively used in the gas distribution sector, provided that the gas is extracted from a field close to exhaustion, which is characterized by low reservoir pressures.Item How to stay relevant? Stay digital(ПДАУ, 2023-05-24) Прілєпо, Наталія ВолодимирівнаItem Improving the abrasive resistance of a slide frame in a mortar mixer(2020) Попов, Станіслав Вячеславович; Гнітько, Сергій Михайлович; Васильєв, Анатолій ВолодимировичItem Improving the method of rotational broaching in the production of profile openings on the lathes of turning group(2017) Васильєв, Анатолій Володимирович; Попов, Станіслав Вячеславович; Васильєв, Євген Анатолійович; Павельєва, Анна КостянтинівнаItem Improving the technology for manufacturing hollow cylindrical parts for vehicles by refining technological estimation dependences(2021-12-29) Puzyr, R.; Shchetynin, V.; Vorobyov, V.; Salenko, A.; Arhat, R.; Haikova, T.; Yakhin, S. V.; Muravlov, V. V.; Skoriak, Yu. B. ; Negrebetskyi, I. S.; Негребецький, Ігор Станіславович; Скоряк, Юлія Борисівна; Яхін, Сергій Валерійович; Муравльов, Володимир ВячеславовичItem Increasing the mechanical properties of structural cast iron for machine-building parts by combined Mn–Al alloying(2022-01-11) Попов, Станіслав ВячеславовичItem Innovations of mechanical engineering specialties(2021-05-13) Попов, Станіслав Вячеславович; Павельєва, Анна Костянтинівна; Васильєв, Євген АнатолійовичItem INVESTIGATION OF THE INFLUENCE OF THE TEMPERATURE LEVEL ON THE BILATERAL MEAT FRYING PROCESS(2017-04) Skrypnyk, V. O.; Bychkov, Ya. M.; Molchanova, N.; Farisieiev, A.; Скрипник, Вячеслав Олександрович; Бичков, Ярослав МихайловичItem Modernization of the method of rotary form making of external profile surfaces(2018) Васильєв, Анатолій Володимирович; Попов, Станіслав Вячеславович; Васильєв, Євген Анатолійович; Шпилька, Андрій Миколайович; Вовченко, Володимир ДмитровичItem Modified Hexanit cutters for knurling of cylindrical shaft sections(2020) Коробко, Богдан Олегович; Васильєв, Анатолій Володимирович; Попов, Станіслав Вячеславович; Васильєв, Анатолій ВолодимировичItem Numerical modeling of pipe parts of agricultural machinery expansion by stepped punches(2020-10-29) Muravlov, V. V.; Kravchenko, S. I.; Puzyr, R.; Shchetynin, V.; Arhat, R. H.; Sira, Yu. B.; Муравльов, Володимир ВячеславовичItem Prediction of the service life of LED lamps based on the extrapolation of the luminous flux conservation factor(2024) Baghirov, S.; Basova, Yu. O.; Guba, L.; Kozhushko, H.The paper presents the results of research into the luminous flux conservation factors of commercial samples of light-emitting diode lamps for general lighting during tests of up to 6.000 and 10.000 hours, as well as the results of their service life assessment based on the extrapolation of the values of the luminous flux conservation factor until the moment when this coefficient in 50% of the lamps will decrease to 70% of the initial value. The measurement of the luminous flux of the lamps was carried out every 1000 hours operation of the lamps in the mode with switching cycles: 150 minutes on at full power, after which the lamps are turned off for 30 minutes. Selection of the empirical curve of the luminous flux conservation factor should be performed by finding the initial constant and rate of change of the luminous flux using the method of least squares. The forecast of the service life, according to the recommendations of the IEC 62612 standard, was carried out for four times the test time according to the test results up to 6 thousand hours and 10 thousand hours. It is shown that the service life of lamp samples which can be declared based on test results, is up to 6.000 hours is at least 24 thousand hours (calculated 27.2 thousand hours). Forecast based on tests up to 10 thousand hours is about 36.500 hours, which is 3.500 hours less than declared by the manufacturer.Item QUALIMETRIC ASSESSMENT OF WAFFLES WITH FILLINGS OF ORGANIC RAW MATERIALS(2020-07-31) Tkachenko, A.; Syrokhman, I.; Skrypnyk, V. O. ; Birta, G.; Burgu, Yu.; Скрипник, Вячеслав ОлександровичItem Stem-технології при викладанні дисциплін професійної підготовки інженерів(Полтавський державний аграрний університет, 2024) Левченко, Юлія Вікторівна; Басова, Юлія Олександрівна; Попов, Станіслав ВячеславовичСучасний стан розвитку суспільства спонукає до динамічного об'єднання професіоналів і провідних діячів у галузі освіти. Актуальною для сучасної системи підготовки спеціалістів є проблема дефіциту інженерно-технічних кадрів та залучення талановитої молоді. Найближчим часом у світі зросте потреба в IT-фахівцях, програмістах, інженерах, промислових дизайнерах, спеціалістах з виробництва високих технологій тощо [1].