8 articles in this issue
Lolita Marynchenko,Viktor Marynchenko,Mariana Hyvel
The possibility of using natural mineral adsorbents - clinoptilolite and schungite - in the adsorption purification of water-alcohol solutions of different concentrations was studied using the example of impurities of ethanol of acetaldehyde and ethyl ace... see more
Yulia Kharybina,Yaroslav Pitak
The paper shows that presence of such phases as mullite, corundum is required in order to obtain high quality refractories that are able to work effectively under the conditions of the simultaneous effects of corrosive environments, high temperatures and ... see more
Oleg Burdo,Valentyna Bandura,Aleksandr Zykov,Igor Zozulyak,Julia Levtrinskaya,Elena Marenchenko
The advantages of wave technologies in comparison with traditional thermal technologies are considered. The aim of research is using of innovative wave technologies to intensify the processes of heat and mass transfer in the processes of dehydration and e... see more
Vladimir Andreychuk,Yaroslav Filyuk
An experimental facility for measuring and recording the flux density of solar radiation is designed and installed. An electrical circuit is developed and a pyranometer model is developed to measure the level of solar radiation, and it is graduated with a... see more
Nikolai Kobasko,Anatolii Moskalenko,Petro Lohvynenko,Volodymyr Dobryvechir
In the paper the results of testing three types of FUCHS oils: Thermisol QH 120, Thermisol QH 10 and Thermisol QB 46 are discussed. The main attention is paid to critical heat flux densities evaluation because they create a basis for optimizing cooling in... see more
Rashad Sirac Mammadov,Sardar Yusub Qasimov
The problem of synthesis of the boundary optimal control of the cooling process of media with heat conductive viscosity is investigated. In addition to the distributed parameters, the concentrated parameters act on the system. This is due to the fact that... see more
Larysa Yuzevych,Ruslan Skrynkovskyy,Bohdan Koman
Recommendations are worked out in relation to the evaluation of longevity and quality of underground metallic pipelines in the conditions of corrosion fatigue. The features of early exposure of crisis (before accident) situations are set. A complex qualim... see more
Andrii Karpash,Andrii Oliinyk
In connection with the global increase in the intensity of use of working equipment related to high-risk facilities and the expiry of the service life limit, the question arises of determining the actual technical condition and forecasting the residual re... see more