{"title":"Increasing the power of a VVER-1000 reactor due to economizing heating of feedwater in a water-to-water heat exchanger on a cold circulation loop","authors":"R. Z. Aminov, A. V. Portyankin","doi":"10.1007/s10512-025-01257-1","DOIUrl":null,"url":null,"abstract":"<div><p>Using the example of a power unit with a VVER-1000 reactor, the present paper considers the options for installing a water-to-water heat exchanger on four loops of the main circulation circuit before and after the main circulation pump to increase the power of the nuclear power plant (NPP). The water-to-water heat exchanger performs economizing heating of the secondary circuit feedwater with the coolant at the outlet of the steam generator. The study determines the geometric dimensions of the heat exchanger and its cost. The power generated by a steam turbine due to the increased steam capacity of steam generators is calculated. Specific capital investments in the installation of a water-to-water heat exchanger at an NPP with a VVER-1000 reactor are determined.</p></div>","PeriodicalId":480,"journal":{"name":"Atomic Energy","volume":"138 4","pages":"277 - 281"},"PeriodicalIF":0.3000,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Atomic Energy","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10512-025-01257-1","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"NUCLEAR SCIENCE & TECHNOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Using the example of a power unit with a VVER-1000 reactor, the present paper considers the options for installing a water-to-water heat exchanger on four loops of the main circulation circuit before and after the main circulation pump to increase the power of the nuclear power plant (NPP). The water-to-water heat exchanger performs economizing heating of the secondary circuit feedwater with the coolant at the outlet of the steam generator. The study determines the geometric dimensions of the heat exchanger and its cost. The power generated by a steam turbine due to the increased steam capacity of steam generators is calculated. Specific capital investments in the installation of a water-to-water heat exchanger at an NPP with a VVER-1000 reactor are determined.
期刊介绍：
Atomic Energy publishes papers and review articles dealing with the latest developments in the peaceful uses of atomic energy. Topics include nuclear chemistry and physics, plasma physics, accelerator characteristics, reactor economics and engineering, applications of isotopes, and radiation monitoring and safety.
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