{"title":"通过制定去污因素评价方案,分析系统去污效果","authors":"Jeseok Song, Chang-Lak Kim","doi":"10.1016/j.net.2025.103680","DOIUrl":null,"url":null,"abstract":"<div><div>This study compares how the change in decontamination scope affects the total decontamination factor (DF) in system decontamination of Kori Unit 1 (Kori-1), by development of decontamination factor evaluation program (DFEP). The DFEP calculates the total DF from initial activity inventory and its measurement date of each part in whole scope of decontamination, decontamination date and number of decontamination cycles, and DF of each cycle in each part. For every cycle, DF of each part is driven by DF of each cycle in whole system, and DF of each part in whole cycles, both from overseas full system decontamination (FSD) cases.</div><div>By the analysis of DFEP, total DF cannot reach the Kori-1 target DF, 30, in case of excluding both SGs. In the case of excluding only 1 SG, total DF can be over 30 if additional 2 more cycles of decontamination with excluding 1 SG are done after 2-cycle FSD. Comparing which of the SG is excluded, the total DF is higher in the case of excluding the SG connected to pressurizer side.</div></div>","PeriodicalId":19272,"journal":{"name":"Nuclear Engineering and Technology","volume":"57 10","pages":"Article 103680"},"PeriodicalIF":2.6000,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Analysis of system decontamination effectiveness by development of decontamination factor evaluation program\",\"authors\":\"Jeseok Song, Chang-Lak Kim\",\"doi\":\"10.1016/j.net.2025.103680\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>This study compares how the change in decontamination scope affects the total decontamination factor (DF) in system decontamination of Kori Unit 1 (Kori-1), by development of decontamination factor evaluation program (DFEP). The DFEP calculates the total DF from initial activity inventory and its measurement date of each part in whole scope of decontamination, decontamination date and number of decontamination cycles, and DF of each cycle in each part. For every cycle, DF of each part is driven by DF of each cycle in whole system, and DF of each part in whole cycles, both from overseas full system decontamination (FSD) cases.</div><div>By the analysis of DFEP, total DF cannot reach the Kori-1 target DF, 30, in case of excluding both SGs. In the case of excluding only 1 SG, total DF can be over 30 if additional 2 more cycles of decontamination with excluding 1 SG are done after 2-cycle FSD. Comparing which of the SG is excluded, the total DF is higher in the case of excluding the SG connected to pressurizer side.</div></div>\",\"PeriodicalId\":19272,\"journal\":{\"name\":\"Nuclear Engineering and Technology\",\"volume\":\"57 10\",\"pages\":\"Article 103680\"},\"PeriodicalIF\":2.6000,\"publicationDate\":\"2025-04-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nuclear Engineering and Technology\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1738573325002487\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"NUCLEAR SCIENCE & TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Engineering and Technology","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1738573325002487","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"NUCLEAR SCIENCE & TECHNOLOGY","Score":null,"Total":0}
Analysis of system decontamination effectiveness by development of decontamination factor evaluation program
This study compares how the change in decontamination scope affects the total decontamination factor (DF) in system decontamination of Kori Unit 1 (Kori-1), by development of decontamination factor evaluation program (DFEP). The DFEP calculates the total DF from initial activity inventory and its measurement date of each part in whole scope of decontamination, decontamination date and number of decontamination cycles, and DF of each cycle in each part. For every cycle, DF of each part is driven by DF of each cycle in whole system, and DF of each part in whole cycles, both from overseas full system decontamination (FSD) cases.
By the analysis of DFEP, total DF cannot reach the Kori-1 target DF, 30, in case of excluding both SGs. In the case of excluding only 1 SG, total DF can be over 30 if additional 2 more cycles of decontamination with excluding 1 SG are done after 2-cycle FSD. Comparing which of the SG is excluded, the total DF is higher in the case of excluding the SG connected to pressurizer side.
期刊介绍:
Nuclear Engineering and Technology (NET), an international journal of the Korean Nuclear Society (KNS), publishes peer-reviewed papers on original research, ideas and developments in all areas of the field of nuclear science and technology. NET bimonthly publishes original articles, reviews, and technical notes. The journal is listed in the Science Citation Index Expanded (SCIE) of Thomson Reuters.
NET covers all fields for peaceful utilization of nuclear energy and radiation as follows:
1) Reactor Physics
2) Thermal Hydraulics
3) Nuclear Safety
4) Nuclear I&C
5) Nuclear Physics, Fusion, and Laser Technology
6) Nuclear Fuel Cycle and Radioactive Waste Management
7) Nuclear Fuel and Reactor Materials
8) Radiation Application
9) Radiation Protection
10) Nuclear Structural Analysis and Plant Management & Maintenance
11) Nuclear Policy, Economics, and Human Resource Development