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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.12
- 수록면
- 90 - 100 (11page)
이용수
초록· 키워드
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Molten corium-concrete interaction (MCCI) is one of the most important phenomena that can lead to the potential hazard of late containment failure due to basemat penetration during a severe accident. In this study, MCCI analytical models of the CORQUENCH code were prepared through verification calculations of several experiments, which had been performed using concrete types similar to those of the calandria vault floor in CANDU-6 plants. The behaviors of thermal-hydraulic variables related to MCCI phenomena were analyzed under the conditions of dry floor and water flooding during the severe accident stemming from a hypothetic station blackout. Uncertainty analyses on the ablation depth were also carried out. It was estimated that the concrete ablation was not interrupted due to the continuous MCCI process under the dry condition but was terminated within 24 hours under the water flooding condition. It was confirmed that the water flooding as a mitigating action was effective to achieve the quenching and thermal stabilization of the melt discharged from the calandria vessel, showing that the present models are capable of reasonably simulating MCCI phenomena in CANDU-6 plants. This study is expected to provide the technical bases to the accident management strategy during the late-phase severe accidents.
목차
ABSTRACT
1. 서론
2. MCCI 분석 방법론
3. 중수로 원전에서의 MCCI 수치해석 결과
4. 결론
참고문헌
참고문헌 (28)
참고문헌 신청
Sevon, T. / 2005 / Molten Core Concrete Interactions in Nuclear Accidents – Theory and Design of an Experimental Facility / VTT Tiedotteita. Research Notes (2311)
Thompson, D.H. / 1992 / Thermal hydraulic aspects of the large-scale integral MCCI test in the ACE program / 2nd OECD/NEA CSNI Specialist Meeting on Molten Core Debris-Concrete Interactions 1(3)
Copus, E. R. / 1990 / Core-concrete interactions using molten UO2 with zirconium on basaltic basemat: the SURC-2 experiment
Copus, E.R. / 1992 / Sustained Uranium Dioxide/Concrete Interaction Tests: The SURC Test Series / 2nd OECD/NEA CSNI Specialist Meeting on Molten Core Debris-Concrete Interactions 1(3)
Farmer, M. T. / 2001 / Status and Future Direction of the Melt Attack and Coolability Experiments (MACE) Program at Argonne National Laboratory / Proceedings 9th Int. Conference on Nuclear Engineering (ICONE-9)
Thompson, D.H. / 1992 / Thermal hydraulic aspects of the large-scale integral MCCI test in the ACE program / 2nd OECD/NEA CSNI Specialist Meeting on Molten Core Debris-Concrete Interactions 1(3)
Copus, E. R. / 1990 / Core-concrete interactions using molten UO2 with zirconium on basaltic basemat: the SURC-2 experiment
Copus, E.R. / 1992 / Sustained Uranium Dioxide/Concrete Interaction Tests: The SURC Test Series / 2nd OECD/NEA CSNI Specialist Meeting on Molten Core Debris-Concrete Interactions 1(3)
Farmer, M. T. / 2001 / Status and Future Direction of the Melt Attack and Coolability Experiments (MACE) Program at Argonne National Laboratory / Proceedings 9th Int. Conference on Nuclear Engineering (ICONE-9)
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