AbstractThreaded joints are the most technological for piling up in the fields. However, violations of standard threaded joints account for 70% of all complications in pipe processing and production. These malfunctions result in significant material losses, reduced well productivity, and contamination of the wells and environmental pollution. Particularly acute is the loss of these sealed joints during exploration and development of gas and gas condensate fields. The necessary increase in volumes and intensification of hydrocarbon energy production is envisaged by the increase of drilling depth, construction of slopes and horizontal wells. Horizontal drilling and fracturing are used to produce shale gas. The efficiency and safety of the operation of oil and gas wells in complex mining and technical conditions depend on the quality and reliability of casing and pumping columns, which requires the modernization of machinery and technology for the installation of wells. The most technological for column fitting in the fisheries sector is threaded joints. However, breach of standard threaded connections causes 70% of all complications with pump housings and columns. This leads to significant material losses, reduced production of raw materials, contamination of the interior and the environment. Therefore, the urgent task is to improve the threaded joints by increasing their reliability and efficiency under heavy workloads.

The article is devoted to the following issues: boiling of fluid in the cooling jacket of the engine cylinder head; agents that influenced the thermal conductivity coefficient of nanofluids; behavior of nanoparticles and devices with nanoparticles in the engine’s cylinder head cooling system. The permissible temperature level of internal combustion engines is ensured by intensification of heat transfer in cooling systems due to the change of coolants with “light” and “heavy” nanoparticles. It was established that the introduction of “light” nanoparticles of aluminum oxide into the water in a mass concentration of 0.75% led to an increase in its thermal conductivity coefficient by 60% compared to the base fluid at a coolant temperature of 90 °C, which corresponds to the operating temperature of the engine cooling systems. At the indicated temperature, the base fluid has a thermal conductivity coefficient of 0.545 W/(m °С), for nanofluid with particles its value was 0.872 . At the same time, a positive change in the parameters of the nanofluid in the engine cooling system was noted: the average movement speed increased from 0.2 to 2.0 m/s; the average temperature is in the range of 60–90 °C; heat flux density 2 × 102–2 × 106 ; heat transfer coefficient 150–1000 . Growth of the thermal conductivity coefficient of the cooling nanofluid was achieved. This increase is determined by the change in the mass concentration of aluminum oxide nanoparticles in the base fluid. This will make it possible to create coolants with such thermophysical characteristics that are required to ensure intensive heat transfer in cooling systems of engines with various capacities.

AbstractThe problem of adaptation of educational space of technical university to modern market requirements is considered. There are described the results of studying the requests of higher education applicants and their vision of the success of the study. The aim of the article is to build an architecture of an information system similar to that used by modern enterprises, which will provide a combination of scientific, design and educational activities of the academic community, taking into account market needs. The main scientific research methods are bibliographic analysis, comparative analysis, methods of analogies. The conceptual architecture of the Information Support of Design Innovation Activity of the Technical University system based on the construction of a unified scientific and educational information space is described. The main task of the university’s information space is to prepare students for activities of the real market. There are determined the necessity and limits of application of the modern access control system at the universities of Ukraine, in particular for the organization of independent work of students. There is offered the way to reach the 4th level of technological readiness of students ‘and teachers’ development. The construction of an ontological description of the subject area of a technical university, the development of the application of a grid model for the description of scientific and technical information, and the determination of the current technical status are defined as the basis of the system of setting tasks for project groups in the transition to project-oriented learning. The question of the appropriateness of using adaptive case management system as a basic concept of building electronic document management system is resolved. The use of the competence approach as a mechanism of stimulating technical creativity within the educational process and in the work of researchers from the University staff is considered.

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