Severe accident analysis with spatial discretized model by MAAP - (1) parametric study on Fukushima-daiichi Unit-2-

Kenichi Kanda, Yoshihisa Nishi, Kazuma Abe, Satoshi Nishimura, Koichi Nakamura, Masahiro Furuya, Atsushi Ui

研究成果: Conference contribution

抄録

Accident analyses of the Fukushima-Daiichi unit-2 nuclear power plant were performed with MAAP (Modular Accident Analysis Program) version 5.03. We assumed RCIC, SRV operation and alternative water injection in order to reproduce the measured pressure and temperature values in RPV and PCV. From parametric studies, it was found that the analysis results were in good agreement with the measured data. In this paper, the results of the parametric studies are reported. Furthermore, spatial discretization of compartments (such as rooms in the reactor building, etc.) into small parts successfully demonstrated the transient distribution and deposition of fission products (FPs) across the rooms. Such special discretization is particularly important for the forensic investigation of severe accidents and the deposited amount in the R/B might be estimated by using this detailed model.

本文言語English
ホスト出版物のタイトルThermal-Hydraulics and Safety Analyses
出版社American Society of Mechanical Engineers (ASME)
ISBN(電子版)9780791851494
DOI
出版ステータスPublished - 2018
外部発表はい
イベント2018 26th International Conference on Nuclear Engineering, ICONE 2018 - London, United Kingdom
継続期間: 2018 7 222018 7 26

出版物シリーズ

名前International Conference on Nuclear Engineering, Proceedings, ICONE
6B

Other

Other2018 26th International Conference on Nuclear Engineering, ICONE 2018
国/地域United Kingdom
CityLondon
Period18/7/2218/7/26

ASJC Scopus subject areas

  • 原子力エネルギーおよび原子力工学

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