A MELCOR model of Fukushima Daiichi Unit 3 accident

Tuomo Sevón

doi:10.1016/j.nucengdes.2014.11.038

A MELCOR model of Fukushima Daiichi Unit 3 accident

Tuomo Sevón

Research output: Contribution to journal › Article › Scientific › peer-review

23 Citations (Scopus)

Abstract

A MELCOR model of the Fukushima Daiichi Unit 3 accident was developed. The model is based on publicly available information, and the MELCOR input file is published as electronic supplementary data with this paper. According to the calculation, the reactor pressure vessel lower head failed about 53 h after the earthquake. At the end of the calculation, 30% of the fuel was still inside the reactor and 70% had been discharged to the containment. Almost all of the radioactive noble gases and 0.95% of the cesium inventory were released to the environment during the accident.

Original language	English
Pages (from-to)	80-90
Journal	Nuclear Engineering and Design
Volume	284
DOIs	https://doi.org/10.1016/j.nucengdes.2014.11.038
Publication status	Published - 2015
MoE publication type	A1 Journal article-refereed

Keywords

nuclear power plants
accidents
modeling
reactor pressure vessels
earthquakes

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abstract = "A MELCOR model of the Fukushima Daiichi Unit 3 accident was developed. The model is based on publicly available information, and the MELCOR input file is published as electronic supplementary data with this paper. According to the calculation, the reactor pressure vessel lower head failed about 53 h after the earthquake. At the end of the calculation, 30% of the fuel was still inside the reactor and 70% had been discharged to the containment. Almost all of the radioactive noble gases and 0.95% of the cesium inventory were released to the environment during the accident.",

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AB - A MELCOR model of the Fukushima Daiichi Unit 3 accident was developed. The model is based on publicly available information, and the MELCOR input file is published as electronic supplementary data with this paper. According to the calculation, the reactor pressure vessel lower head failed about 53 h after the earthquake. At the end of the calculation, 30% of the fuel was still inside the reactor and 70% had been discharged to the containment. Almost all of the radioactive noble gases and 0.95% of the cesium inventory were released to the environment during the accident.

KW - nuclear power plants

KW - accidents

KW - modeling

KW - reactor pressure vessels

KW - earthquakes

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