경수로원전의 격납건물종합누설률시험 주기 연장 인허가에 따른 주기적 리스크 재평가 = Periodic Risk Reassessment for ILRT Extension following Licensing Approval of Pressurized Water Reactor(PWR)

다국어 초록 (Multilingual Abstract)

ILRT Intervals for nuclear power plants in Korea were extended from once in five years to once in ten years. Therefore, it is required to evaluate the risk impact for ILRT interval extensions as a condition of ILRT extensions. In this paper, input data were generated for the reference PWR Plants using the raw data such as meteorological, population distribution and source term data. And the web-based Off-Site Consequence Analysis Program(OSCAP) was used to calculate the effects of extensions based on the two methodologies of NUREG-1493 and NEI Interim Report. The web-based OSCAP was designed based on the MACCS(MELCOR Accident Consequence Code System) Il, which is generally used as a tool for an off-site consequence analysis. The results of periodic risk assessments following ILRT extension were identified not to be significant. It is considered appropriate to apply this study and results in an accident management plan and safety goal, and to the field of public acceptance.

참고문헌 (Reference)

1 나장환, "격납건물종합누설률시험 주기연장을 위한 웹기반 소외결말분석 프로그램 개발 및 적용" 한국안전학회 27 (27): 219-223, 2012

2 SNL, "“Code Manual for MACCS II” Vol.1, SAND97-0594, User's Guide"

3 EPRI, "Risk Impact Assessment of Revised Containment Leak Rate Testing Intervals" EPRI 1994

4 KHNP, "Probabilistic Safety Assessments for KORI 2 unit"

5 USNRC, "Performance-Based Containment Leak Test Program" NUREG 1995