Quantitative assessment of severe accident management strategies in a nuclear power plant

Gunhyo Jung, Moosung Jae

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Nuclear power plants in Korea are preparing improvement countermeasures for severe accidents including mobile gas turbine generators, passive autocatalytic recombiners, containment-filtered venting systems, and external injection using portable pumps. However, these improvement countermeasures have only been determined by expert judgment, and detailed validation of their effects has not been performed. In this paper, the quantitative safety impact of these improvement countermeasures was evaluated for the Westinghouse 3-loop pressurized water reactor. Our evaluation of four improvement countermeasures using the at-power internal event probabilistic safety assessment models revealed that all containment failure modes have positive effects, except for the containment isolation failure and the containment bypass. Therefore, post-Fukushima action plans for coping with a severe accident in Korea have been appropriately evaluated and established.

Original languageEnglish
Pages (from-to)691-702
Number of pages12
JournalJournal of Nuclear Science and Technology
Volume55
Issue number7
DOIs
StatePublished - 2018 Jul 3

Fingerprint

countermeasures
containment
nuclear power plants
accidents
Nuclear power plants
Accidents
Korea
Pressurized water reactors
Turbogenerators
Failure modes
Gas turbines
safety
Pumps
pressurized water reactors
venting
bypasses
failure modes
gas turbines
isolation
generators

Keywords

  • containment failure
  • containment-filtered venting system
  • Probabilistic safety assessment
  • quantitative safety impact
  • severe accident

Cite this

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Quantitative assessment of severe accident management strategies in a nuclear power plant. / Jung, Gunhyo; Jae, Moosung.

In: Journal of Nuclear Science and Technology, Vol. 55, No. 7, 03.07.2018, p. 691-702.

Research output: Contribution to journalArticle

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