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Information × Registration Number 0221U106953, 0121U110598 , R & D reports Title Extension of the resource of the WWER-1000 reactor heat exchange system pipelines popup.stage_title Head Mytrofanov Anatolii S., Кандидат технічних наук Registration Date 23-12-2021 Organization National Science Center "Kharkiv Institute of Physics and Technology" popup.description2  Common types of damage to the second circuit of nuclear power plants with ВВЕР-1000 are considered. It is determined that they include damage that is a consequence of corrosion-erosion wear. The reason for such damage are operational factors and design features of pipeline elements and their tracing. Currently, several measures are used to reduce damage to pipelines: improving water chemistry and excluding copper-containing materials from the tract. Computer codes are used to predict the performance of metal of pipelines. But for this method of forecasting, it is necessary to take into account many indicators related to the mode of operation, the results of control, material, etc. It should also be noted that the nature of the structure of the material is not taken into account when calculating the residual resource. Studies of metal damage of high-pressure heaters of NPP have shown that the band structure of 20 steel is a significant criterion for corrosion-erosion wear The multifactoriness of the operation process makes the calculations of erosion-corrosion wear very approximate, so forecasting the working capacity of the metal of pipelines it is advisable to predict on the basis of experiments. Product Description popup.authors Gozhenko Sergiy V Krainiuk Yevhen O Mytrofanov Anatoliy S Sitnyanska Tetyana V popup.nrat_date 2021-12-23 Close