Skip to main navigation Skip to search Skip to main content

Probabilistic risk assessment of drop accident of cask with o-ring seal during on-site spent nuclear fuel transportation

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

PRA (Probabilistic Risk Assessment) of cask drop accident during on-site SNF (Spent Nuclear Fuel) transportation between SFP (Spent Fuel Pool) and wharf in NPP site was done in this research. Modified process of cask storage system was used. Based on modified process with height and state of cask, drop accident scenarios were invented. Bolted metal cask is selected as a target cask, which is composed of four parts: 21 fuel assemblies, cask body, 2 cask lids, and 2 impact limiters. Based on the results of FDR (Fuel Damage Ratio) and Release Fraction from cask to environment (RFc-e) from the simulation of ABAQUS, source term from cask drop accident was calculated. For all stages, side drop was applied. With the source term, risk to each person in LPZ (Low Population Zone) was calculated by Hotspot code. The total risk in LPZ with 45,000 MWD/MTU burn-up SNFs was calculated as 1.906E-06 man-person/transport for rubber o-ring case, and 8.413E-06 for metal o-ring case.

Original languageEnglish
Title of host publicationProceedings - 22nd ISSAT International Conference on Reliability and Quality in Design
EditorsHoang Pham
PublisherInternational Society of Science and Applied Technologies
Pages353-356
Number of pages4
ISBN (Electronic)9780991057634
StatePublished - 2016
Externally publishedYes
Event22nd ISSAT International Conference on Reliability and Quality in Design - Los Angeles, United States
Duration: 4 Aug 20166 Aug 2016

Publication series

NameProceedings - 22nd ISSAT International Conference on Reliability and Quality in Design

Conference

Conference22nd ISSAT International Conference on Reliability and Quality in Design
Country/TerritoryUnited States
CityLos Angeles
Period4/08/166/08/16

Bibliographical note

Publisher Copyright:
© 2016, International Society of Science and Applied Technologies. All rights reserved.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 12 - Responsible Consumption and Production
    SDG 12 Responsible Consumption and Production

Keywords

  • Cask drop accident
  • On-site transportation
  • Probabilistic risk assessment
  • Spent nuclear fuel

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality

Fingerprint

Dive into the research topics of 'Probabilistic risk assessment of drop accident of cask with o-ring seal during on-site spent nuclear fuel transportation'. Together they form a unique fingerprint.

Cite this