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A Deterministic Safety Assessment of a Pyro-processed Waste Repository

A-KRS 처분 시스템 결정론적 안전성 평가

  • Received : 2012.08.16
  • Accepted : 2012.09.11
  • Published : 2012.09.30

Abstract

A GoldSim template program for a safety assessment of a hybrid-typed repository system, called "A-KRS," in which two kinds of pyro-processed radioactive wastes, low-level metal wastes and ceramic high-level wastes that arise from the pyro-processing of PWR nuclear spent fuels are disposed of, has been developed. This program is ready both for a deterministic and probabilistic total system performance assessment which is able to evaluate nuclide release from the repository and farther transport into the geosphere and biosphere under various normal, disruptive natural and manmade events, and scenarios. The A-KRS has been deterministically assessed with 5 various normal and abnormal scenarios associated with nuclide release and transport in and around the repository. Dose exposure rates to the farming exposure group have been evaluated in accordance with all the scenarios and then compared among other.

파이로 처리 방사성 폐기물 처분 시스템 A-KRS에 대한 결정론적, 확률론적 안전성 평가가 가능하도록 골드심 프로그램을 개발하였다. 처분장에서 핵종이 유출되어 다양한 처분 시스템 내 매질을 이동하는 것에 관련된 주요 시나리오를 도출하기 위하여 처분 시스템을 구성하는 각 요소 별로, 그리고 처분 시스템 내 핵종의 이동에 관여하는 FEP을 인지 선별하여 수학적 모델을 개발하고 이를 골드심 템플릿 프로그램으로 개발하였다. 이 프로그램을 이용하여 폐쇄후 방사선적 안전성 평가를 결정론적으로 수행하여 5개의 정상 및 비정상 시나리오를 평가하여 그 결과를 상호 비교하였다.

Keywords

References

  1. Final Storage of Spent Nuclear Fuel-KBS-3, Summary, SKBF/KBS, 1983.
  2. Youn-Myoung Lee et al., "A GoldSim model for the safety assessment of an HLW repository," Progress in Nuclear Energy 51, 746-759, 2009. https://doi.org/10.1016/j.pnucene.2009.05.002
  3. A Probabilistic Safety Assessment of a Pyro-processed Waste Repository, to be published in Journal of the Korean Radioactive Waste Society.
  4. GoldSim Contaminant Transport Module, User's Guide, Version 5, GoldSim Technology Group, Seattle, USA, 2006.
  5. Youn-Myoung Lee et al., "Evaluation of nuclide release scenarios for a hypothetical LILW repository," Progress in Nuclear Energy 53, 760- 774, 2011. https://doi.org/10.1016/j.pnucene.2011.05.010

Cited by

  1. A Sensitivity Study on Nuclide Release from the Near-field of a Pyroprocessed Waste Repository System: Part 2. A Deterministic Approach vol.12, pp.1, 2014, https://doi.org/10.7733/jnfcwt.2014.12.1.37
  2. A Probabilistic Safety Assessment of a Pyro-processed Waste Repository vol.10, pp.4, 2012, https://doi.org/10.7733/jkrws.2012.10.4.263