BEPU Analyses for the Postulated Loss-of-cooling Accident Scenario in the Spent Fuel Pool at the Fukushima Daiichi Unit 4

Authors

  • Petya Hristova Petrova Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences
  • Pavlin Petkov Groudev Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences
  • Petya Ivanova Vryashkova Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences

DOI:

https://doi.org/10.7546/CRABS.2022.07.03

Keywords:

fission products, severe accident conditions, BEPU

Abstract

The aim of the paper is to present the results obtained from the study devoted on the Best Estimate plus Uncertainty (BEPU) Methods application. To this end, the simulation of the Loss of cooling accident (LOCA) scenario in the Fukushima Daiichi spent fuel pool was carried out. Special attention was paid on the uncertainty analysis with the domain fission products release. The work presented herein was carried out by using the ASTECv2.2b/SUNSET in the coupling mode. A brief description of the ASTECv2.2b/SUNSET coupling is provided and a short discussion concerning the BEPU methodology is also presented.

Author Biographies

Petya Hristova Petrova, Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences

Mailing Address:
Institute for Nuclear Research and Nuclear Energy (INRNE–BAS),
Bulgarian Academy of Sciences
72 Tsarigradsko Shosse
1784 Sofia, Bulgaria

E-mail: petia@inrne.bas.bg

Pavlin Petkov Groudev, Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences

Mailing Address:
Institute for Nuclear Research and Nuclear Energy (INRNE–BAS),
Bulgarian Academy of Sciences
72 Tsarigradsko Shosse
1784 Sofia, Bulgaria

E-mail: pavlinpg@inrne.bas.bg

Petya Ivanova Vryashkova, Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences

Mailing Address:
Institute for Nuclear Research and Nuclear Energy (INRNE–BAS),
Bulgarian Academy of Sciences
72 Tsarigradsko Shosse
1784 Sofia, Bulgaria

E-mail: pivryashkova@inrne.bas.bg

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Published

29-07-2022

How to Cite

[1]
P. Petrova, P. Groudev, and P. Vryashkova, “BEPU Analyses for the Postulated Loss-of-cooling Accident Scenario in the Spent Fuel Pool at the Fukushima Daiichi Unit 4”, C. R. Acad. Bulg. Sci., vol. 75, no. 7, pp. 959–965, Jul. 2022.

Issue

Vol. 75 No. 7 (2022)

Section

Physics

License

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