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Researcher: Andriy Zahorulko

Information about Researcher Andriy Zahorulko

Information

RoleResearcher
First nameAndriy
Last nameZahorulko
CountryУкраина
Academic titleAssociate professor
OrganisationSumy State University
Thematic area/fieldST – Physical Sciences and Engineering / ST8 Production and processes engineering
Key wordsTurbomachinery, Seals, Bearings, Rotordynamics

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Short summary of activities and expertiseThe influence of hydrodynamic forces acting in narrow gaps of seals and bearings on energy efficiency and reduction of harmful emissions and vibrations of centrifugal machines
Relevant publications and/or research/innovation products1. Zahorulko, A.V., Lee, Y.-B. Dynamic behavior and difference pressure control of difference pressure regulator for dry gas seals (2022) Mechanical Systems and Signal Processing, 165, 108350. DOI: 10.1016/j.ymssp.2021.108350 2. Kim, J., Ha, Y., Zahorulko, A., Lee, Y. Performance assessments and simulations of ROT (radial outflow turbine) for back-pressure turbine generator system (2021) Energy, 228, 120551. DOI: 10.1016/j.energy.2021.120551 3. Peczkis, G., Wiśniewski, P., Zahorulko, A. Experimental and numerical studies on the influence of blade number in a small water turbine (2021) Energies, 14 (9), 2604. DOI: 10.3390/en14092604 4. Zahorulko, A.V., Lee, Y.-B. Computational analysis for scallop seals with sickle grooves, part I: Leakage performance (2021) Mechanical Systems and Signal Processing, 147, 107024. DOI: 10.1016/j.ymssp.2020.107024 5. Zahorulko, A.V., Lee, Y.-B. Computational analysis for scallop seals with sickle grooves, part II: Rotordynamic characteristics (2021) Mechanical Systems and Signal Processing, 147, 107154. DOI: 10.1016/j.ymssp.2020.107154 6. Blasiak, S., Zahorulko, A.V. A parametric and dynamic analysis of non-contacting gas face seals with modified surfaces (2016) Tribology International, 94, pp. 126-137. DOI: 10.1016/j.triboint.2015.08.014
Other relevant achievements
Preferred Host Institution type Academic, Research centre
Additional information

Contact

Email a.zagorulko@omdm.sumdu.edu.ua
Phone number+380952009847
Website