EVOLUTION OF THERMOPHYSICAL PROBLEMS IN CONSTRUCTIONS OF VVER REACTORS MAIN CIRCULATION PUMPS


  • G. I. Sharaevsky Institute for Safety Problems of Nuclear Power Plants of the National Academy of Sciences of Ukraine
  • N. М. Fialko Institute for Safety Problems of Nuclear Power Plants of the National Academy of Sciences of Ukraine
  • I. G. Sharaevsky Institute for Safety Problems of Nuclear Power Plants of the National Academy of Sciences of Ukraine
  • L. B. Zimin Institute for Safety Problems of Nuclear Power Plants of the National Academy of Sciences of Ukraine
Keywords: VVER reactors, main circulation pumps, construction units, thermo-hydraulic processes, technical condition control.

Abstract

Changes in the design of critical critical from the point of view of safety of the nodes of the main circulation pumps of nuclear power units and the corresponding dynamics of the accompanying thermo-hydraulic problems caused by these changes are analyzed. Attention is drawn to the insufficiently studied complex thermophysical processes occurring in tribological pairs of mechanical shaft sealing and sliding bearings, where the normal friction and lubrication conditions can latently go to pre-emergency and insufficiently controlled by existing monitoring systems technical conditions.

References

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Published
2019-10-24
How to Cite
Sharaevsky, G. I., FialkoN. М., Sharaevsky, I. G., & Zimin, L. B. (2019). EVOLUTION OF THERMOPHYSICAL PROBLEMS IN CONSTRUCTIONS OF VVER REACTORS MAIN CIRCULATION PUMPS. Thermophysics and Thermal Power Engineering, 41(3), 45-54. https://doi.org/https://doi.org/10.31472/ttpe.3.2019.7
Section
Fuel Utilization and Burning, Heat Power Units, Ecology