Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT) (방사성폐기물학회지)

Korean Radioactive Waste Society (한국방사성폐기물학회)
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A Study on the Development of the FEP and Scenario for the HLW Disposal in Korea

우리나라의 고준위폐기물 처분을 위한 FEP과 시나리오 개발

  • Received : 2012.08.16
  • Accepted : 2012.09.24
  • Published : 2012.09.30
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Abstract

The impacts influenced on the performance and safety of a repository are classified as units of Features, Events, and Processes (FEP), for the total system performance assessment (TSPA) related to the permanent disposal of HLW. The importance is evaluated in consideration of the frequency, consequence, regulation, suitability of a specific site, etc. and then these are grouped as a similar FEP. A scenario describing the migration of radionuclide from the repository to the biosphere is derived from understanding the interaction among these groups. KAERI has developed the KAERI FEP lists by review and collation of the foreign studies. The KAERI FEP list has been reviewed by several Korean experts. The five major scenarios describing possible future evolutions of the geological disposal system have been developed by RES and PID methods. Also the CYPRUS which is a KAERI integrated database management system for the total system performance assessment (TSPA) related to the permanent disposal of HLW has been developed and the results of the FEP and scenario development have been uploaded in this system.

고준위 방사성폐기물 처분에 대한 종합 성능 평가를 위해 처분장 성능 및 안전성에 미치는 영향들을 단위 현상, 사건, 공정 (FEP)으로 분류하고 이들을 발생 가능성, 결과 영향, 규제, 특정 부지의 적합성 등을 고려하여 중요도를 평가한 후 유사한 FEP들을 그룹화하여 이들 FEP 그룹들 간의 상호 반응을 이해하고 이로부터 처분장으로부터 최종 생태계에 이르는 방사성 핵종들이 이동을 기술하는 시나리오를 도출하는 연구가 필요하다. 한국원자력연구원에서는 외국의 사례를 심층 분석하고 국내 전문가 의견 등을 종합하여 국내 처분 환경에 적합한 FEP들을 380 여개 포함하는 KAERI FEP List를 개발하였다. RES와 PID방법을 사용하여 처분장 방사선적 종합 안전성 평가에서 고려해야 될 5 가지 시나리오들을 도출하였다. 또한 고준위폐기물 처분안전성평가를 종합 데이터베이스 관리시스템인 KAERI CYPRUS를 개발하고 이들 결과물을 CYPRUS 내에 구축하였다.

Keywords

References

  1. NEA, Systematic Approaches to Scenario Development: Safety Assessment of Radioactive Waste Repositories. Report of the NEA Working Group on the Identification and Selection of Scenarios for the Safety Assessment of Radioactive Waste Disposal, NEA/OECD, 1992.
  2. IAEA, Final Report of the Reference Biospheres Working Group of the BIOMOVS II Study, Development of a Reference Biospheres Methodology for Radioactive Waste Disposal, BIOMOVSII TR No. 6, SKI, 1996.
  3. R. M. Cranwell et al., Risk Methodology for Geologic Disposal of Radioactive Waste: Scenario Selection Procedure, NUREG/CR- 1667, U S NRC, 1982.
  4. W. M. Miller and N.A. Chapman, Identification of Relevant Processes, System Concept Group Report, U.K. DoE/HMIP Technical Report TRZI- 11, 1992.
  5. T. Vieno et al., Application of the RES Methodology for Identifying Features, Events and Processes (FEPs) for Near-Field Analysis of Copper-Steel Canister, YJT 94-21, YJT, 1994.
  6. J. Andersson et al., The Joint SKI/SKB Scenario Development Project, SKB TR 98-35, SKB, 1989.
  7. Chul-Hyung Kang et al., Normal Scenario Development on the Radionuclide Release and its Transfer and Transport from a Repository, KAERI/CR-34197/97, 1997.
  8. J. Andersson and L. King-Clayton, Evaluation of the Practical Applicability of PID and RES Scenario Approaches for Performance and Safety Assessments in the Finnish Nuclear Fuel Disposal Programme, Work Report TURVA 96-02, 1999.
  9. J. A. Hudson, Rock Engineering Systems: Theory and Practice, Chichester, U.K. 1992.
  10. M. Stenhouse et al., Secnario Development FEP Audit List Preparation: Methodology and Presentation, Site 94, SKI TR 93-27, SKI, 1993.
  11. Yongsoo Hwang, Eun Jin Seo, Yeon-Myung Lee and Chul-Hyung Kang, "Post Closure Long Term Safety on the Initial Container Failure Scenario for a Potential HLW Repository," J. Korean Radioactive Waste Society, Vol. 2(2), P. 105-112, 2004.
  12. Sung Ho Lee et al., "A study on a scenario using the PID method, Progress in Nuclear Energy," Vol. 51(2), Pages 253-257, 2009. https://doi.org/10.1016/j.pnucene.2008.06.005
  13. Y. S. Hwang et al., "Development of KAERI FEP, scenario and assessment method database for permanent disposal of HLW in Korea, Progress in Nuclear Energy," Vol. 48(2), P. 165-172, 2006. https://doi.org/10.1016/j.pnucene.2005.09.008
  14. Eun Jin Seo, Yongsoo Hwang and Chul- Hyung Kang, "Building Transpararency on the Total System Performance Assessment of Radioactive Repository through the Development of the Cyber R&D Platform ; Application for Development of Scenario and Input of TSPA Data through QA Procedures," J. Korean Radioactive Waste Society, Vol. 4(1), P. 65-75, 2006.