Journal of Radiation Industry (방사선산업학회지)

Korean Society of Radiation Industry (한국방사선산업학회)
권호 표지
DOI QR코드

DOI QR Code

Analysis on Study Cases of Safety Assessment and Cases for Spent Nuclear Fuel Pool Accident

사용후핵연료 습식저장시설 사고 안전성 평가 연구 현황 및 사고 사례 분석

  • Shin Dong Lee (Department of Nuclear Engineering, Kyung Hee University) ;
  • Hyeok Jae Kim (Department of Nuclear Engineering, Kyung Hee University) ;
  • Geon Woo Son (Department of Nuclear Engineering, Kyung Hee University) ;
  • Kwang Pyo Kim (Department of Nuclear Engineering, Kyung Hee University)
  • 이신동 (경희대학교 원자력공학과) ;
  • 김혁재 (경희대학교 원자력공학과) ;
  • 손건우 (경희대학교 원자력공학과) ;
  • 김광표 (경희대학교 원자력공학과)
  • Received : 2023.09.07
  • Accepted : 2023.09.20
  • Published : 2023.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

Spent nuclear fuel corresponds to high-level radioactive waste that has high decay heat and radioactivity. Accordingly, Spent nuclear fuel withdrawn from the reactor core is primarily stored and managed in a spent nuclear fuel pool in the nuclear power plant to reduce decay heat and radioactivity. In Korea, most nuclear power plant store all spent nuclear fuel in a spent nuclear fuel pool. For wet storage, there are no defense in depth different with reactor core. The study related to spent nuclear fuel pool accident should be carried out to ensure safety. Therefore, it is necessary to analyze previous study cases related to safety of spent nuclear fuel pool and accident cases to build foundational knowledge. The Objective of this study is to analyze study cases of safety assessment and cases for spent nuclear fuel pool accident. For analyzing study cases of safety assessment, possible phenomena when spent nuclear fuel pool accident occurring identified, Subsequently, study cases for safety assessment about each phenomena were investigated, and materials & methods and results for each study are analyzed. For analyzing cases for spent nuclear fuel pool accident, we analyzed accident cases caused by loss of cooling and loss of coolant in spent nuclear fuel pool. Subsequently, causes and change of water level and temperature by each accident case are analyzed. As a result of the analysis on study cases of spent nuclear fuel pool accident, the results of the study conducted by each research institute were vary depending on the computer code, materials & methods of experiment and major assumptions used in the study. As a result of analyzing cases for spent nuclear fuel pool accident, it was found that accident cases for loss of cooling is more than cases for loss of coolant accident. Even though the types of accident in spent nuclear fuel pool were similar, the specific causes were different by each accident case. All the accident cases analyzed did not lead to severe accidents, such as nuclear fuel being exposed to the air. The result of this study will be used as fundamental data for study on spent nuclear fuel pool accident that will be conducted in the future.

Keywords

Acknowledgement

본 연구는 한국에너지기술평가원에서 주관하는 에너지기술 개발사업의 일환으로 수행된 연구입니다(No. 2021171020001B).

References

  1. NEA. 2020. Storage of Radioactive Waste and Spent Fuel.
  2. KORAD. 2016. Story about Spent Nuclear Fuel 70.
  3. KORAD. Management of High Radioactive Waste. https://www.korad.or.kr/korad/html.do?menu_idx=144
  4. Park WJ and Suk TW. 1996. Present Status and Future of Spent Fuel Management (1) - National Strategies and Their Implementations. J. Radiat. Prot. 21(1):59-72. https://www.jrpr.org/journal/view.php?number=273
  5. Na HJ, Kim HJ, Kim KH, Nam HW and Kim KP. 2021. Analysis of Domestic and Foreign Spent Fuel Storage and Final Management Policies. J. Radiat. Ind. 15(4):301-309. https://doi.org/10.23042/radin.2021.15.4.301
  6. KINS. 2003. Development of Safety Evaluation Method for Dry Storage of Spent Nuclear Fuel. KINS/RR-197.
  7. IAEA. 2022. Status and Trends in Spent Fuel and Radioactive Waste Management. No. NW-T-1.14(Rev.1).
  8. NEA. 2015. Status Report on Spent Fuel Pools under Loss-of-Cooling and Loss-of-Coolant Accident Conditions. NEA/CSNI/R(2015)2.
  9. NRC. Spent Fuel Pools. https://www.nrc.gov/waste/spent-fuel-storage/pools.html
  10. Xiong Z, Ye C, Wang M and Gu H. 2015. Experimental Study on the Sub-atmospheric Loop Heat Pipe Passive Cooling System for Spent Fuel Pool. Prog. Nucl. Energy 79:40-47. https://doi.org/10.1016/j.pnucene.2014.10.015
  11. Bang JG, Kim DH, Jeon TH and Kim SG. 2016. Discussion of Major Safety Issue in the Spent Nuclear Fuel Pool Accident. Abstract of Proceedings of the Korean Radioactive Waste Society AUTUMN 2016:103-104.
  12. IAEA. 2021. Phenomenology, Simulation and Modeling of Accidents in Spent Fuel Pools. IAEA-TECDOC-1949.
  13. NEA. 2018. Phenomena Identification and Ranking Table. NEA/CSNI/R(2017)18.
  14. EPRI. 2013. Spent Fuel Pool Accident Characteristics. 3002000499.
  15. NRC. 1989. Regulatory Analysis for the Resolution of Generic Issue 82, "Beyond Design Basis Accidents in Spent Fuel Pools". NUREG-1353.
  16. SNL. 1979. Spent Fuel Heat Up Following Loss of Water During Storage. NUREG/CR-0649.
  17. Mutelle H, Tamburim I, Tillard S, Tregoures N, Toutant A, Mermoux M, Peres V and Buscail H. 2014. A New Research Program on Accidents in Spent Fuel Pools: The DENOPI Project. Proceeding of WRFPM 2014.
  18. Gestin M, Mermoux M, Coindreau O, Duriez C, Pijolat M, Peres V and Favergeon L. 2019. Experimental Study of Oxidation in Oxygen, Nitrogen and Steam Mixtures at 850℃ of Pre-oxidized Zircaloy-4.
  19. Saux ML, Brachet JC, Vandenberghe V, Rouesne E, Urvoy S, Ambard A and Chosson R. 2021. Effect of A Pre-oxide on the high temperature Steam Oxidation of Zircaloy-4 and M5 alloys.
  20. KAERI. 2017. Investigation of Nuclear Spent Fuel Failure Behavior in Spent Fuel Pool Air Ingress Accidents. KAERI/RR-4195/2016.
  21. Jeon BG, Kim KH, Kim BJ, Kim JR, Park JK and Moon SK. 2016. Analysis of Thermal Hydraulic Behavior in Spent Fuel Storage Pool Under Loss of Cooling Accident. Abstract of Proceeding of the Korean Radioactive Waste Society 2016:2859-2862.
  22. Oh JM and Pack JW. 2015. Analysis of Severe Accident for the SFP under the Condition of Complete Drainage using MELCOR.
  23. Yang YS. 2006. Evaluation of Dry Storage Criteria for PWR Spent Nuclear Fuel and Its Applicability in Korea. Abstract of Proceeding of the Korean Radioactive Waste Society 2006:91-92.
  24. KAERI. 2009. Analysis on Storage of Spent Nuclear Fuel. KAERI/TR-3784/2009.
  25. NRC. 1997. Operating Experience Feedback Report. NUREG-1275.
  26. EPRI. 2014. PWR Spent Fuel Pool Risk Assessment Integration Framework and Pilot Plant Application. 3002002691.
  27. NRC. 1987. Severe Accidents in Spent Fuel Pools in Support of Generic Safety Issue 82. NUREG/CR-4982.
  28. SNL. 2012. Fukushima Daiichi Accident Study (Status as of April 2012). SAND2012-6173.
  29. ANL. 2004. Air Oxidation Kinetics for Zr-Based Alloys. ANL-03/32.
  30. TEPCO. 2012. Fukushima Nuclear Accident Analysis Report.
  31. KNS. 2013. Analysis on Fukushima Nuclear Power Plant Accident.
  32. The National Academy Press. 2016. Lessons Learned from the Fukushima Nuclear Accident for Improving Safety and Security of U.S Nuclear Plants Phase 2.
  33. IAEA. 2015. The Fukushima Daiichi Accident.
  34. Park WM, Son SM, Choi DK, Lee KH, Kang HS, Choi C. 2019. A Novel Method to Estimate the Amount of Coolant Overflow in the Spent Fuel Pool During an Earthquake. Abstract of The KSFM Journal of Fluid Machinery Winter 2019.
  35. IAEA. 2012. IAEA Mission to Onagawa Nuclear Power Station to Examine The Performance of Systems, Structures and Components Following The Great East Japanese Earthquake and Tsunami.
  36. NRC. 2001. Technical Study of Spent Fuel Pool Accident Risk at Decommissioning Nuclear Power Plants. NUREG-1738.
  37. Strucic M. 2016. Possible Accident Scenarios related to the Spent Fuel Pool Operating Events. J. Energy 65(2):79-89.