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Review of Fukushima Daiichi Nuclear Power Station debris endstate location in OECD/NEA preparatory study on analysis of fuel debris (PreADES) project
Nuclear Engineering and Design ( IF 1.9 ) Pub Date : 2020-12-01 , DOI: 10.1016/j.nucengdes.2020.110857
Akira Nakayoshi , Joy L. Rempe , Marc Barrachin , David Bottomley , Didier Jacquemain , Christophe Journeau , Viktor Krasnov , Terttaliisa Lind , Richard Lee , Donald Marksberry , Shinya Mizokami , Andrew Morreale , Damian Peko , Marco Pellegrini , Jin Ho Song

Abstract Much is still not known about the end-state of core materials in each of the units at Fukushima Daiichi Nuclear Power Station (Daiichi) that were operating on March 11, 2011. The Nuclear Energy Agency of the Organization for Economic Development has launched the Preparatory Study on Analysis of Fuel Debris (PreADES) project as a first step to reduce some of these uncertainties. As part of the PreADES Task 1, relevant information was reviewed to confirm the accuracy of graphical depictions of the debris endstates at the damaged Daiichi units, which provides a basis for suggesting future debris examinations. Two activities have been completed within the PreADES Task 1. First, relevant knowledge from severe accidents at the Three Mile Island Unit 2 and the Chernobyl Nuclear Power Plant Unit 4 was reviewed, along with results from prototypic tests and hot cell examinations, to glean insights that may inform future decommissioning activities at Daiichi. Second, the current debris endstate diagrams for the damaged reactors at Daiichi were reviewed to confirm that they incorporate relevant knowledge from plant observations and from severe accident code analyses of the BSAF (Benchmark Study of the Accident at the Fukushima Daiichi Nuclear Power Station) 1 and 2 projects. This paper highlights Task 1 insights, which have the potential to not only inform future Decontamination and Decommissioning activities at Daiichi but also provide important perspectives for severe accident analyses and management, particularly regarding the long-term management of a damaged nuclear site following a severe accident.

中文翻译:

经济合作与发展组织/核能机构燃料碎片分析(PreADES)项目预备研究中福岛第一核电站碎片终态位置的回顾

摘要 关于 2011 年 3 月 11 日运行的福岛第一核电站 (Daiichi) 的每个机组的堆芯材料的最终状态仍然知之甚少。经济发展组织核能机构启动了燃料碎片分析准备研究 (PreADES) 项目是减少其中一些不确定性的第一步。作为 PreADES 任务 1 的一部分,对相关信息进行了审查,以确认受损第一核装置碎片最终状态图形描述的准确性,这为建议未来的碎片检查提供了基础。PreADES Task 1中完成了两项活动。 首先,回顾了三哩岛2号机组和切尔诺贝利核电站4号机组严重事故的相关知识,连同原型测试和热电池检查的结果,收集可能为第一核电站未来退役活动提供信息的见解。其次,审查了第一核电站受损反应堆的当前碎片终态图,以确认它们结合了来自工厂观测和 BSAF(福岛第一核电站事故基准研究)1 和严重事故代码分析的相关知识。 2个项目。本文重点介绍了任务 1 的见解,它们不仅有可能为第一核电站未来的去污和退役活动提供信息,而且还为严重事故分析和管理提供重要视角,特别是在严重事故后受损核场址的长期管理方面. 收集可能为第一核电站未来退役活动提供信息的见解。其次,审查了第一核电站受损反应堆的当前碎片终态图,以确认它们结合了来自工厂观测和 BSAF(福岛第一核电站事故基准研究)1 和严重事故代码分析的相关知识。 2个项目。本文重点介绍了任务 1 的见解,它们不仅有可能为第一核电站未来的去污和退役活动提供信息,而且还为严重事故分析和管理提供重要视角,特别是在严重事故后受损核场址的长期管理方面. 收集可能为第一核电站未来退役活动提供信息的见解。其次,审查了第一核电站受损反应堆的当前碎片终态图,以确认它们结合了来自工厂观测和 BSAF(福岛第一核电站事故基准研究)1 和严重事故代码分析的相关知识。 2个项目。本文重点介绍了任务 1 的见解,它们不仅有可能为第一核电站未来的去污和退役活动提供信息,而且还为严重事故分析和管理提供重要视角,特别是在严重事故后受损核场址的长期管理方面. 对第一核电站受损反应堆的当前碎片终态图进行了审查,以确认它们结合了来自工厂观测和 BSAF(福岛第一核电站事故基准研究)1 和 2 项目的严重事故代码分析的相关知识. 本文重点介绍了任务 1 的见解,它们不仅有可能为第一核电站未来的去污和退役活动提供信息,而且还为严重事故分析和管理提供重要视角,特别是在严重事故后受损核场址的长期管理方面. 对第一核电站受损反应堆的当前碎片终态图进行了审查,以确认它们结合了来自工厂观测和 BSAF(福岛第一核电站事故基准研究)1 和 2 项目的严重事故代码分析的相关知识. 本文重点介绍了任务 1 的见解,它们不仅有可能为第一核电站未来的去污和退役活动提供信息,而且还为严重事故分析和管理提供重要视角,特别是在严重事故后受损核场址的长期管理方面.
更新日期:2020-12-01
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