Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2014, Vol. 25 ›› Issue (S1): S010602 doi: 10.13538/j.1001-8042/nst.25.S010602

• NUCLEAR ENERGY SCIENCE AND ENGINEERING • Previous Articles     Next Articles

Evaluations of fission product reduction strategies for severe accident management in CANDU6

PARK Sooyong,and SONG Yongmann   

  1. 1Integrated Risk Assessment Division, Korea Atomic Energy Research Institute, Daejeon 305-353, Korea(South)
    2Severe Accident and PHWR Safety Research Division,Korea Atomic Energy Research Institute, Daejeon 305-353, Republic of Korea(South)
  • Contact: PARK Sooyong E-mail:sypark@kaeri.re.kr
  • Supported by:

    the National Research Foundation of Korea (NRF) grant
    funded by the Korea government (Ministry of Science, ICT, and Future
    Planning) (No. NRF-2012M2A8A4025966)

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PARK Sooyong, and SONG Yongmann. Evaluations of fission product reduction strategies for severe accident management in CANDU6.Nuclear Science and Techniques, 2014, 25(S1): S010602     doi: 10.13538/j.1001-8042/nst.25.S010602

Abstract:

This paper presents the mitigation effects of fission product reduction strategies that can be applied to severe
accident management for CANDU6 plants. Strategy effects for ‘control of the reactor building condition’ and
‘reduction of the fission product release’ have been evaluated. The operations of a dousing spray system, local
air cooler system, and containment filtered vent system are simulated as severe accident management strategies.
The present analysis is mainly focused on determining an estimate of the fission products in the release and
transport processes, i.e., (1) their release from the reactor core, (2) their distribution in a primary heat transport
system, calandria vessel, molten corium, and reactor building, and (3) their release from the reactor building
into the environment during a severe accident.

Key words: CANDU6 Accident Management, Fission Product Reduction Strategy, Containment Filtered Vent System, ISAAC