Search academic texts

Information × Registration Number 0224U033090, (0124U003993) , R & D reports Title Assessment of the state of the protective polymer coating in the under-roof space of the Shelter object as of 2024 popup.stage_title Оцінка стану захисного полімерного покриття в підпокрівельному просторі об'єкта «Укриття» станом на 2024 рік Head Krasnov Viktor О., Registration Date 17-12-2024 Organization Institute for Safety Problems of Nuclear Power Plants of the National Academy of Sciences of Ukraine popup.description1 Assessment of the protective polymer coating in the under-roof space of the Shelter object as of 2024 and forecast of its condition for the next year popup.description2  The object of research is a protective polymer coating on the camber surfaces of the 4th unit and the interbuttress surfaces of the under-roof space of the Shelter object, which is applied to the surfaces by the modernized dust suppression system. The purpose of the work is to assess the protective polymer coating in the underroof space of the Shelter object as of 2024 and forecast its condition for the next year. Research and forecast methods – mathematical statistical analysis of the results of monitoring the activity of radioactive emissions from the Shelter object, the level of radioactive contamination removed, the precipitation of radioactive aerosols at certain control points, the concentration of radioactive aerosols in the main volume of the NSC-SO complex and the assessment of protective properties by the area of destroyed coating in accordance with GOST 9.407-84 and the determination of the thickness of the coating on the selected samples-witnesses in the laboratory. The results of scientific research will be used to make a decision on the timing of irrigation with a protective coating of interbuttress surfaces and camber surfaces in the under-roof space of the Shelter object when the processes of destruction of the protective coating by deflation processes leading to an uncontrolled increase in the concentration of radioactive aerosols inside the NSC-SO complex are detected. Product Description popup.authors Doroshenko Anatolii O. Muliar Daria O. Pavliuchenko Mykola I. Sabenin Pavlo V. Khan Valerii Ye.-I. Shylo Mariia M. popup.nrat_date 2024-12-17 Close