Post-Fukushima challenges for the mitigation of severe accident consequences

The Fukushima accident is characterized by the fact that three reactors at the same site experienced reactor vessel failure and the accident resulted in significant radiological release to the environment, which was about 1/10 of the Chernobyl releases. The safe removal of fuel debris in the reactor...

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Bibliographic Details
Published inNuclear engineering and technology Vol. 52; no. 11; pp. 2511 - 2521
Main Authors Song, JinHo, An, SangMo, Kim, Taewoon, Ha, KwangSoon
Format Journal Article
LanguageKorean
Published 2020
Subjects
Radiological releases
Fukushima
Core melt progression
Stratification of corium layers
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Summary:The Fukushima accident is characterized by the fact that three reactors at the same site experienced reactor vessel failure and the accident resulted in significant radiological release to the environment, which was about 1/10 of the Chernobyl releases. The safe removal of fuel debris in the reactor vessel and Primary Containment Vessel (PCV) and treatment of huge amount of contaminated water are the major issues for the decommissioning in coming decades. Discussions on the new researches efforts being carried out in the area of investigation of the end state of fuel debris and Boling Water reactor (BWR) specific core melt progression, development of technologies for the mitigation of radiological releases to comply with the strengthened safety requirement set after the Fukushima accident are discussed.
Bibliography:KISTI1.1003/JNL.JAKO202031837625227
ISSN:1738-5733
2234-358X