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    Wyświetlanie 1-4 z 4
    Tytuł:
    Technology of obtaining mixed alternative fuel based on organic substances for mining technological transport engines
    Autorzy:
    Melnyk, Vasyl
    Romanyshyn, Liubomyr
    Mosora, Yurii
    Kotwica, Krzysztof
    Powiązania:
    https://bibliotekanauki.pl/articles/27315590.pdf
    Data publikacji:
    2023
    Wydawca:
    STE GROUP
    Tematy:
    technology
    alternative fuel
    equipment
    mixer
    improvement
    operational properties of fuels
    Opis:
    In connection with the increase in the price of fuel based on hydrocarbons, the search and use of alternative types of fuel for machines in the mining and oil production industry is quite relevant today. Most of the existing alternative fuels by themselves cannot be considered as ready-to-use motor fuels. One of the ways to solve this problem is to use their mixtures with commercial fuels in certain ratios. This work deals with the development and research of the main characteristics of the mixer for obtaining mixed fuels based on diesel fuel and soybean oil, as well as the results of the study of the physical and operational properties of the obtained mixtures of different volume ratios of diesel fuel and soybean oil. The process of obtaining a mixed alternative fuel based on diesel fuel and soybean oil was implemented on a developed installation consisting of a mixer, the design of which is protected by a patent of Ukraine, and a gear pump. The study of the characteristics of the mixer as part of the installation showed that at a temperature of the components of the alternative fuel of 20°С, with a loss of full pressure on the mixer Δр ≈ (60-65) kPa, the volume consumption of soybean oil reached 10.7.10-6 m3/s. The time of preparation of the fuel mixture in the amount of 195 liters with a content of soybean oil of 10% ranged from 30 to 33 minutes. As research has shown, mixing soybean oil with diesel fuel in the amount of 5-50% vol. provides an improvement in viscosity-temperature properties and makes it possible to use such mixtures in diesel engines without changes in the design of the power supply system and regulation of fuel equipment, which characterizes soybean oil as a promising additive to diesel fuels to improve their technical and operational performance.
    Źródło:
    Management Systems in Production Engineering; 2023, 1 (31); 71--77
    2299-0461
    Pojawia się w:
    Management Systems in Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The use of simulation modeling in the design of elements of annular preventers
    Autorzy:
    Dzhus, Andriy
    Romanyshyn, Liubomyr
    Mykhailiuk, Vasyl
    Mosora, Yurii
    Powiązania:
    https://bibliotekanauki.pl/articles/2064396.pdf
    Data publikacji:
    2019
    Wydawca:
    STE GROUP
    Tematy:
    simulation modeling
    stress-strain state
    annular preventer
    modelowanie symulacyjne
    stan naprężenie-odkształcenie
    zabezpieczenie pierścieniowe
    Opis:
    One of the main elements of control over wells in the process of their construction is the blowout equipment, which includes annular preventers. This also applies to wells that provide degassing of coal veins to reduce their gas dynamic activity. Modern technology of work requires expansion of the functionality of the sealing unit of the annular preventers with the simultaneous provision of its operational characteristics. Determining the necessary durability of seals for different operating modes is the study of their stress-strain state. The paper deals with the possibility of using simulation modeling in the annular preventers design situations and within the study of the armature geometry influence of the sealant fittings on its stress-strain state. The method of determining the material constants to realize the Mooney-Rivlin model has been proposed. The behavior of low-density rubber in software product has been described by the finite element method. The aggregation error of experimental and theoretical studies is 5%. Therefore, the preconditions and the possibility of using simulation modeling in the design of annular preventers devices with increased operational characteristics have been created and confirmed.
    Źródło:
    New Trends in Production Engineering; 2019, 2, 1; 295--303
    2545-2843
    Pojawia się w:
    New Trends in Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Migration Factor of Stimuling the Development of the Production Industry in Ukraine and Poland
    Autorzy:
    Mosora, Larysa
    Tolubyak, Vitalii
    Brodny, Jarosław
    Romanyshyn, Liubomyr
    Mosora, Yurii
    Powiązania:
    https://bibliotekanauki.pl/articles/2064817.pdf
    Data publikacji:
    2020
    Wydawca:
    STE GROUP
    Tematy:
    migration process
    educational migration
    consequences of migration
    donor country
    recipient country
    migrants
    cooperation
    Opis:
    The article examines the influence of migration processes on the formation and development of production capacities of countries. It is emphasized that population migration significantly affects the social and economic indicators of the country; under such influence, they can have both positive and negative trends. The article presents the main positive and negative consequences of population migration for donor countries, recipient countries, and for migrants themselves. It is proved that one of the most popular and promising is educational migration, which, under certain favorable circumstances, makes it possible to form highly qualified personnel, deepen international cooperation between higher education institutions of different countries, and strengthen the joint use of educational and scientific potential. The attention is focused on the fact that Ukraine today acts as a donor country and a leader in the number of young people who travel to study in Poland. It is indicated that in order to effectively regulate migration processes by the state, it is appropriate to ensure interaction between higher education institutions of different countries, namely, in the sphere of: a double-degree program, foreign internships, and holding joint international conferences. Using the example of Ivano-Frankivsk National Technical University of Oil and Gas and Ternopil National Economic University, it is shown how such interaction is implemented in practice and its consequences. The conclusions are based on the fact that educational migration is one of the most favorable types of migration. With its proper control by the state, it is possible to stimulate the development of the production industry in countries and improve social and economic indicators.
    Źródło:
    Multidisciplinary Aspects of Production Engineering; 2020, 3, 1; 732--744
    2545-2827
    Pojawia się w:
    Multidisciplinary Aspects of Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Using FCAW with Electrodes Based on Fe-Ti-Mo-B-C System for Increasing of Durability of Junk Removal Tools
    Autorzy:
    Ivanov, Olexandr
    Prysyazhnyuk, Pavlo
    Romanyshyn, Liubomyr
    Romanyshyn, Taras
    Mosora, Yurii
    Powiązania:
    https://bibliotekanauki.pl/articles/2065035.pdf
    Data publikacji:
    2021
    Wydawca:
    STE GROUP
    Tematy:
    abrasion resistance
    flux cored electrodes
    hardfacing
    junk mills
    microstructure
    Opis:
    In this work were analyzed factors and working conditions that leads to the wearing of junk mills tools that are a part of junk removal equipment used in drilling and workover of borehole. Such equipment is a part of oil and gas industry and work under condition of intense abrasive wearing with increased pressures and cyclic loads. Was established that traditional hardfacing materials based on the Fe-Cr-C system are not effective for improvement of abrasion resistance of elements of such equipment due to their low crack resistance and low hardness of chromium carbides. The aim of this work was to increase a durability of that equipment by using of flux cored electrodes with reaction components of pure metal powders, which leads to forming the fine-grained structure with increased hardness. Powders of Ti, Mo, B4C and their combinations were used. Structures of the hardfacing coatings were investigated by method of metallography, scanning electron microscopy (SEM). Abrasion wear tests were held under condition of fixed and non-fixed abrasion. Using of pure metal powders led to formation of a fine-grained structure with grains of Mo2FeB2 that forms around TiC, which work as modifier. It was investigated that the researched material based on Fe-Ti-Mo-C-B system that was used for increasing the wear resistance of junk mills led to increasing of the TBO period in 1.5-1.6 times comparing with serial hardfacing materials based on tungsten.
    Źródło:
    Multidisciplinary Aspects of Production Engineering; 2021, 4, 1; 132--141
    2545-2827
    Pojawia się w:
    Multidisciplinary Aspects of Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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