Assessment of Individual Resource of High-Pressure Rotors of Nuclear Power Plants Steam Turbines

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DOI https://doi.org/10.15407/pmach2022.01.024
Journal Journal of Mechanical Engineering – Problemy Mashynobuduvannia
Publisher A. Pidhornyi Institute for Mechanical Engineering Problems
National Academy of Science of Ukraine
ISSN  2709-2984 (Print), 2709-2992 (Online)
Issue Vol. 25, no. 1, 2022 (March)
Pages 24-31
Cited by J. of Mech. Eng., 2022, vol. 25, no. 1, pp. 24-31

 

Author

Olha Yu. Chernousenko, National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” (37, Peremohy ave., Kyiv, 03056, Ukraine), e-mail: chernousenko20a@gmail.com, ORCID: 0000-0002-1427-8068

 

Abstract

Integration of the Ukrainian energy system into the European one is a component of Ukraine’s strategic goal – joining the EU. Our country has sufficiently strong and developed gas and oil transport networks, as well as electricity networks, all connected with the transport networks of the EU and CIS countries, which allows it to participate in shaping European energy policy and common energy market, play an important role in energy cooperation between CIS and EU countries. The resource indicators of high-pressure rotors of nuclear power plants steam turbines with a capacity of 220, 1000 MW are estimated. An integrated approach to the study of the individual resource of steam turbines and the possibilities of prolonging the operation of power equipment is applied. For power units no. 6 of Zaporizhzhia NPP, no. 4 of Rivne NPP, no. 2 of Khmelnytskyi NPP, the total damage of high-pressure rotors is 59–83%, and the residual life is 40,604–94,383 hours, which allows to prolong the operation for 40–50 thousand hours. According to the results of calculations of resource indicators of high-pressure rotors of NPP turbines, the total damage of high-pressure rotors of power units no. 3–5 of Zaporizhzhia NPP, no. 1 of Khmelnytskyi NPP, no. 2, 3 of South-Ukrainian NPP varies between 85–90%, and the residual life is 22,403–34,494 hours, if we set the allowable equipment resource of 270 thousand hours. This will allow to prolong the operation of high-pressure rotors of NPP steam turbines for 25 thousand hours. The individual resource of high-pressure rotors of NPP turbines for power units no. 1, 2 of Zaporizhzhia NPP, no. 1, 2, 3 of Rivne NPP, no. 1 of South-Ukrainian NPP is exhausted.

 

Keywords: static damage, cyclic damage, residual life, steam turbine, low-cycle fatigue, long-term strength.

 

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References

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Received 15 February 2022

Published 30 March 2022