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Information × Registration Number 0226U002336, (0124U000798) , R & D reports Title Grounding of the hydraulic safety system of Ukrainian nuclear power plants using underground water resources. popup.stage_title Дослідження і визначення шляхом моделювання показники ємнісних та ресурсних запасів підземних вод, їх штучної активізації та параметрів облаштування гідротермодинамічного модуля водозабезпечення і системи водообміну холодної і нагрітої води на АЕС. Head Sadovenko Ivan O., Доктор технічних наук Registration Date 23-02-2026 Organization Dnipro University of Technology popup.description1 The purpose of the work is to substantiate the hydraulic safety system of Ukrainian NPPs by parameterizing thermal water exchange systems on computer numerical models of underground geofiltration and its hydrogeomechanical activation in the mode of heat and cold recycling. popup.description2 During the second stage of the research, indicators of the capacity and resource reserves of groundwater, their artificial activation and parameters of the arrangement of the hydrothermodynamic module of water supply and the water exchange system of cold and heated water were determined in relation to the hydrotechnological plan of objects of influence on hydrodynamic and temperature flows in the area of the Zaporizhzhia Nuclear Power Plant. The study of hydrothermal exchange processes and their parameterization in the technology of recycling thermal water drainage under certain factors in conditions of a critical shortage of surface water resources that feed the NPP storage tanks was based on the latest scientific approaches and was consistent with the technology of artificial activation of water absorption by water-containing layers of groundwater and the reversal of the water supply and thermal water exchange system. Based on the geological-hydrogeological and engineering-geological analysis of geological massifs in the areas where the industrial sites of Ukrainian NPPs are located, the criterion level of hydrosafety in reactor cooling and water supply systems was detailed, taking into account natural and technological factors, namely, capacitive reserves and resources, temperatures of surface and groundwater. At the same time, a significant factor related to the national security of the state is the scenario of destruction of hydrological sources of replenishment of storage tanks and geofiltration supply circuits. Based on this, a numerical model of the geofiltration area of the existing water supply was created and identified, taking into account water-containing layers, which are potential components of hydrothermal recycling in the NPP hydrosafety system using capacitive and resource reserves of groundwater. The R&D are coordinated with the elements of the emergency situation provoked by the destruction of the Kakhovsky reservoir dam on 06.06.2023. Product Description popup.authors Dereviahina Nataliia I. Inkin Oleksandr V. Tumoshuk Vasylii Ipolitovych Sherstiuk Yevheniia A. Artem V. Spivakov popup.nrat_date 2026-02-23 Close