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Information × Registration Number 0221U103104, 0116U004040 , R & D reports Title Perfection of the methods for calculation and research of the power machines popup.stage_title Head Vanieiev Serhii M, Кандидат технічних наук Registration Date 14-02-2021 Organization Sumy State University popup.description2  The object of research is energetic machines. The aim of the work is improving the calculating methods and researching of the energetic machines based on the study of their working process. Research methods - analysis, calculating experiment, physical experiment. In the work researched and improved methods for calculating the parameters and characteristics of the following energetic machines: jet-reactive and vortex expansion machines, ejector-treatment plant, liquid-vapor ejector devices: the obtained formulas for calculating the efficiency of a steam-jet turbine, which allow us to study the influence of the main geometric and operating parameters for the efficiency and characteristics of the machine; developed a methodology and carried out studies of a multi-stream vortex expansion machine in the ANSYS software package; calculations of turbine generators for the auxiliary needs of the gas distribution station based on the vortex expansion machine were performed; a technique was developed and studies of the flow of an air-abrasive mixture in nozzles of an ejector-cleaning plant were carried out using the ANSYS and FlowVision software systems; experimental studies of nozzles of various shapes and geometrical parameters in the composition of the ejector-cleaning plant were carried out and the analysis of the research results was carried out; in a liquid-vapor jet apparatus of a vortex type, the influence of geometric and operating parameters on the angle of deflection of the flow to underheat to saturation of the liquid in the oblique cut of the active flow nozzle was investigated and parameters influencing the value of this angle were established; the method of exergetic analysis of installations based on a liquid-vapor ejector as part of a vacuum unit has been improved, on the basis of which the predicted exergetic efficiency of vacuum installations based on a liquid-steam ejector is calculated for cases when the injected flow is superheated or saturated steam, or Product Description popup.authors Arsenyev Vyacheslav M Baha Vadym M Bondarenko German A Kazban Olena V Kozin Viktor M Miroshnichenko Dmytro V Manzharov Andrii S Meleychuk Stanislav S Merzliakov Iurii S Olada Ievgen M Prokopov Maksym H Rodymchenko Tetiana S Smolenko Dmytro V Chekh Oleg Yu. Sharapov Serhii O Yaschenko Artem O popup.nrat_date 2021-02-14 Close