SEVERE ACCIDENT ISSUES RAISED BY THE FUKUSHIMA ACCIDENT AND IMPROVEMENTS SUGGESTED
This paper revisits the Fukushima accident to draw lessons in the aspect of nuclear safety considering the fact that the Fukushima accident resulted in core damage for three nuclear power plants simultaneously and that there is a high possibility of a failure of the integrity of reactor vessel and p...
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Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573315301649 |
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doaj-625caf383d5d49b9ba21079680f0018b2020-11-25T02:41:25ZengElsevierNuclear Engineering and Technology1738-57332014-04-0146220721610.5516/NET.03.2013.079SEVERE ACCIDENT ISSUES RAISED BY THE FUKUSHIMA ACCIDENT AND IMPROVEMENTS SUGGESTEDJIN HO SONGTAE WOON KIMThis paper revisits the Fukushima accident to draw lessons in the aspect of nuclear safety considering the fact that the Fukushima accident resulted in core damage for three nuclear power plants simultaneously and that there is a high possibility of a failure of the integrity of reactor vessel and primary containment vessel. A brief review on the accident progression at Fukushima nuclear power plants is discussed to highlight the nature and characteristic of the event. As the severe accident management measures at the Fukushima Daiich nuclear power plants seem to be not fully effective, limitations of current severe accident management strategy are discussed to identify the areas for the potential improvements including core cooling strategy, containment venting, hydrogen control, depressurization of primary system, and proper indication of event progression. The gap between the Fukushima accident event progression and current understanding of severe accident phenomenology including the core damage, reactor vessel failure, containment failure, and hydrogen explosion are discussed. Adequacy of current safety goals are also discussed in view of the socio-economic impact of the Fukushima accident. As a conclusion, it is suggested that an investigation on a coherent integrated safety principle for the severe accident and development of innovative mitigation features is necessary for robust and resilient nuclear power system.http://www.sciencedirect.com/science/article/pii/S1738573315301649Fukushima AccidentSevere AccidentSevere Accident ManagementSevere Accident PhenomenologyBoling Water Reactor |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
JIN HO SONG TAE WOON KIM |
spellingShingle |
JIN HO SONG TAE WOON KIM SEVERE ACCIDENT ISSUES RAISED BY THE FUKUSHIMA ACCIDENT AND IMPROVEMENTS SUGGESTED Nuclear Engineering and Technology Fukushima Accident Severe Accident Severe Accident Management Severe Accident Phenomenology Boling Water Reactor |
author_facet |
JIN HO SONG TAE WOON KIM |
author_sort |
JIN HO SONG |
title |
SEVERE ACCIDENT ISSUES RAISED BY THE FUKUSHIMA ACCIDENT AND IMPROVEMENTS SUGGESTED |
title_short |
SEVERE ACCIDENT ISSUES RAISED BY THE FUKUSHIMA ACCIDENT AND IMPROVEMENTS SUGGESTED |
title_full |
SEVERE ACCIDENT ISSUES RAISED BY THE FUKUSHIMA ACCIDENT AND IMPROVEMENTS SUGGESTED |
title_fullStr |
SEVERE ACCIDENT ISSUES RAISED BY THE FUKUSHIMA ACCIDENT AND IMPROVEMENTS SUGGESTED |
title_full_unstemmed |
SEVERE ACCIDENT ISSUES RAISED BY THE FUKUSHIMA ACCIDENT AND IMPROVEMENTS SUGGESTED |
title_sort |
severe accident issues raised by the fukushima accident and improvements suggested |
publisher |
Elsevier |
series |
Nuclear Engineering and Technology |
issn |
1738-5733 |
publishDate |
2014-04-01 |
description |
This paper revisits the Fukushima accident to draw lessons in the aspect of nuclear safety considering the fact that the Fukushima accident resulted in core damage for three nuclear power plants simultaneously and that there is a high possibility of a failure of the integrity of reactor vessel and primary containment vessel.
A brief review on the accident progression at Fukushima nuclear power plants is discussed to highlight the nature and characteristic of the event. As the severe accident management measures at the Fukushima Daiich nuclear power plants seem to be not fully effective, limitations of current severe accident management strategy are discussed to identify the areas for the potential improvements including core cooling strategy, containment venting, hydrogen control, depressurization of primary system, and proper indication of event progression. The gap between the Fukushima accident event progression and current understanding of severe accident phenomenology including the core damage, reactor vessel failure, containment failure, and hydrogen explosion are discussed.
Adequacy of current safety goals are also discussed in view of the socio-economic impact of the Fukushima accident. As a conclusion, it is suggested that an investigation on a coherent integrated safety principle for the severe accident and development of innovative mitigation features is necessary for robust and resilient nuclear power system. |
topic |
Fukushima Accident Severe Accident Severe Accident Management Severe Accident Phenomenology Boling Water Reactor |
url |
http://www.sciencedirect.com/science/article/pii/S1738573315301649 |
work_keys_str_mv |
AT jinhosong severeaccidentissuesraisedbythefukushimaaccidentandimprovementssuggested AT taewoonkim severeaccidentissuesraisedbythefukushimaaccidentandimprovementssuggested |
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1724778494846566400 |