{"title":"Use of burnable absorbers for reducing water exchange during the VVER liquid control","authors":"A. R. Muzafarov, V. I. Savander","doi":"10.1007/s10512-024-01057-z","DOIUrl":null,"url":null,"abstract":"<div><p>The paper considers the optimization of a liquid system for compensating excess reactivity by varying the number of gadolinium-containing fuel elements in a VVER fuel assembly and gadolinium mass loading into the fuel elements. Using a simplified refueling model, an ideal dependence of the neutron multiplication factor with burnable absorbers is obtained with reactor criticality, which is maintained using only burnable absorbers. The calculations were carried out using the Serpent neutron physics program code, version 2.1.32 (Finland). A significant reduction in uncompensated reactivity and low-level liquid radioactive waste generated using a liquid compensation system is estimated for real options similar to the ideal one.</p></div>","PeriodicalId":480,"journal":{"name":"Atomic Energy","volume":"134 5-6","pages":"290 - 298"},"PeriodicalIF":0.4000,"publicationDate":"2024-04-02","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/s10512-024-01057-z","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
The paper considers the optimization of a liquid system for compensating excess reactivity by varying the number of gadolinium-containing fuel elements in a VVER fuel assembly and gadolinium mass loading into the fuel elements. Using a simplified refueling model, an ideal dependence of the neutron multiplication factor with burnable absorbers is obtained with reactor criticality, which is maintained using only burnable absorbers. The calculations were carried out using the Serpent neutron physics program code, version 2.1.32 (Finland). A significant reduction in uncompensated reactivity and low-level liquid radioactive waste generated using a liquid compensation system is estimated for real options similar to the ideal one.
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.