{"title":"Development of Risk Informed Aging Management Program in Decommissioning","authors":"Masao Uesaka, Kenta Murakami","doi":"10.1115/1.4065139","DOIUrl":null,"url":null,"abstract":"\n This paper proposes to solve the issues and related to Aging Management Program (AMP) during the decommissioning phase by using risk information. The AMP for the decommissioning plants has not been established, while the number of permanently shut down and decommissioned nuclear power plants are increasing in the world.\n The first issue is the change of the functional importance of the safety systems at the beginning of decommissioning. We propose to evaluate the importance using the PRA model with the change of specification in the decommissioning plant and to determine new importance grade.\n The second issue is to make the maintenance based on the appropriate risk information. This risk information should be based on the progress of decommissioning, reflected and evaluated in the PRA model, as well as information obtained from maintenance inspections, including the ROP process, and failure experience during routine operation.\n To address these issues, the maintenance program in decommissioning that uses the evaluation of risk information according to the decommissioning phase is proposed in this paper.","PeriodicalId":16756,"journal":{"name":"Journal of Nuclear Engineering and Radiation Science","volume":null,"pages":null},"PeriodicalIF":0.5000,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Nuclear Engineering and Radiation Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1115/1.4065139","RegionNum":0,"RegionCategory":null,"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
This paper proposes to solve the issues and related to Aging Management Program (AMP) during the decommissioning phase by using risk information. The AMP for the decommissioning plants has not been established, while the number of permanently shut down and decommissioned nuclear power plants are increasing in the world.
The first issue is the change of the functional importance of the safety systems at the beginning of decommissioning. We propose to evaluate the importance using the PRA model with the change of specification in the decommissioning plant and to determine new importance grade.
The second issue is to make the maintenance based on the appropriate risk information. This risk information should be based on the progress of decommissioning, reflected and evaluated in the PRA model, as well as information obtained from maintenance inspections, including the ROP process, and failure experience during routine operation.
To address these issues, the maintenance program in decommissioning that uses the evaluation of risk information according to the decommissioning phase is proposed in this paper.
本文提出利用风险信息解决退役阶段老化管理计划(AMP)的相关问题。退役核电站的老化管理计划尚未建立,而世界上永久关闭和退役的核电站数量却在不断增加。第一个问题是退役初期安全系统功能重要性的变化。我们建议使用 PRA 模型评估退役核电厂规格变化后的重要性,并确定新的重要性等级。第二个问题是根据适当的风险信息进行维护。这些风险信息应基于 PRA 模型所反映和评估的退役进度,以及从维护检查(包括 ROP 过程)中获得的信息和日常运行中的故障经验。为解决这些问题,本文提出了根据退役阶段使用风险信息评估的退役维护计划。
期刊介绍:
The Journal of Nuclear Engineering and Radiation Science is ASME’s latest title within the energy sector. The publication is for specialists in the nuclear/power engineering areas of industry, academia, and government.