METHOD OF QUALIFICATION OF MODERNIZATION OF ACTIVE SAFETY SYSTEMS TO PREVENT HYDRODYNAMIC INSTABILITY

Authors

  • Vladimir Skalozubov Interagency Center for Fundamental Scientific Research in Energy and Ecology Sector of National Academy of Sciences of Ukraine, Odessa Polytechnic and Ministry of Ecology and Natural Resources of Ukraine, Ukraine https://orcid.org/0000-0003-2361-223X
  • Vadym Kondratyuk National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Ukraine https://orcid.org/0000-0001-5035-311X
  • Eugene Pis'mennyi National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Ukraine https://orcid.org/0000-0001-6403-6596
  • Olga Dorozh Interagency Center for Fundamental Scientific Research in Energy and Ecology Sector of National Academy of Sciences of Ukraine, Odessa Polytechnic and Ministry of Ecology and Natural Resources of Ukraine, Ukraine https://orcid.org/0000-0001-8495-2911
  • Ivan Ostapenko National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Ukraine https://orcid.org/0000-0003-3980-1609

DOI:

https://doi.org/10.20535/1813-5420.2.2023.279688

Keywords:

hydrodynamic instability, modernization, system, nuclear power plant

Abstract

The main reason for the hydrodynamic instability in the start-up mode of the pumps of the high-pressure reactor makeup system is related to the inertial delay in the reaction of the pump head and rate to rapid changes in operating parameters (flow rates, pressure, etc.).The consequences of the hydrodynamic instability in the high-pressure reactor makeup system can be: violation of the conditions for compensating the flow of possible leaks; hydro- and thermal "shocks" and other negative effects in the operating and emergency modes of the reactor.The control armature does not prevent the conditions for the hydrodynamic instability in the transient mode of pump start-up.

An alternative approach to modernizing the high-pressure reactor makeup system with damping devices is proposed. Based on the performed modelling of the modernized system, the conditions and constructional and technical requirements for the prevention of the hydrodynamic instability in the transient modes of pump start-up were determined.

References

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Published

2023-10-09

Issue

Section

TECHNOLOGIES AND EQUIPMENT IN ENERGY