Estimation of long-term ex-vessel debris cooling by water in fukushima Daiichi nuclear power plant unit-3

Ikken Sato, Akifumi Yamaji, Xin Li, Hiroshi Madokoro

研究成果

1 被引用数 (Scopus)

抄録

Interpretation for the two-week long Unit 3 ex-vessel debris cooling behavior was conducted based on 1F plant and site data such as pressure, temperature, gamma ray level and live camera pictures. It was estimated that the debris relocated to the pedestal was in partial contact with liquid water for about initial two days. With the reduction of the sea water injection flowrate, the debris, both in-vessel and ex-vessel ones, became "dry", in which the debris was only weakly cooled by vapor and this condition lasted for about four days until the increase of the sea water injection. During this dry period, in-vessel and ex-vessel debris were heat up and it took another four days to re-flood the heated up debris.

本文言語English
ホスト出版物のタイトルComputational Fluid Dynamics (CFD); Verification and Validation; Advanced Methods of Manufacturing (AMM) for Nuclear Reactors and Components; Decontamination, Decommissioning, and Radioactive Waste Management; Beyond Design Basis and Nuclear Safety; Risk Informed Management and Regulation
出版社American Society of Mechanical Engineers (ASME)
ISBN(印刷版)9784888982566
DOI
出版ステータスPublished - 2021
イベント2021 28th International Conference on Nuclear Engineering, ICONE 2021 - Virtual, Online
継続期間: 2021 8 42021 8 6

出版物シリーズ

名前International Conference on Nuclear Engineering, Proceedings, ICONE
3

Conference

Conference2021 28th International Conference on Nuclear Engineering, ICONE 2021
CityVirtual, Online
Period21/8/421/8/6

ASJC Scopus subject areas

  • 原子力エネルギーおよび原子力工学

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