1 RIC 2009 Current Research Issues in PSA: Korean Status Joon-Eon YANG Integrated Safety Assessment Division Korea Atomic Energy Research Institute 10.

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Presentation transcript:

1 RIC 2009 Current Research Issues in PSA: Korean Status Joon-Eon YANG Integrated Safety Assessment Division Korea Atomic Energy Research Institute 10 Mar. 2009

2 Contents Current Korean Status R&D for PSA & its Applications in Korea R&D Results Future Directions

3 Korean Organizations Related to Nuclear Program KAERI (Korea Atomic Energy Research Institute) –The Government Funded Research Institute KINS (Korea Institute of Nuclear Safety) –The Institute supporting the Regulatory Body (Ministry of Education, Science & Technology) KHNP (Korea Hydor. & Nuclear Power) –The Utility that owns all NPPs of Korea

4 Building New Plants –6 under construction, 2 under licensing review process From PSA to RIPBA –Severe Accident Policy Statement –From Generic to Specific Seoul Kori Ulchin Wolsong Yonggwang (As of Mar. 2008) In operation Planned Under license review Gen III(OPR-1000) Under construction Gen II Gen III+(APR1400) Kori ( CANDU) Current Korean Status

5 On-going Programs in Korea PSA –Level 2 PSAs for all units have been finished & being updated Risk-informed Applications –RI-ISI: Under Review of Regulatory Body –RI-TS: Extension of STI of ESFAS/RPS Permitted for some NPPs New Projects are on-going for other NPPs (AOT Extension of EDG) –RI-ILRT Performance-monitoring –MR: Standardized MR Approach is being tested by KHNP Regulatory Activity –Guidelines for RIR & PSA Quality –RIPI (Risk-informed Periodic Inspection) is being tested by KINS

6 the RIPBA in Korea –Ex.) Korean Specific RIPBA Framework (No ROP/MR) Ex.) PSA Quality Issues the licensing/RI-Design of new NPPs –Ex.) Digital I&C PSA –Ex.) RI-Design Framework resolving some social issues –Ex.) Human Induced Trip  Human Performance –Ex.) Seismic PSA tech. that we are good at –Ex.) PSA S/W (FTREX/FORTE & BDD) We need R&D on PSA for

7 R&D Topics in Korea ChallengesCurrentAnticipated Assessment (Uncertainty) Digital I&C PSA Seismic PSA (Plant Specific) HRA & Human Performance (OPERA/TACOM) CCF Analysis Other External Events (Shrimp) MPAS (PSA Model for Reg.) Performance Assessment Quantification Algorithm (BDD) Level 2 PSA: Severe Accident in New NPP Level 3 PSA: Korean Specific Model Passive System Reliability ConsistencyIntegration of Internal & External PSA Risk/Performance Measures Integrated Assessment of Risk & Performance PSA based RI-PP/PR ConveniencePSA/RIA Tools Tools to enhance Transparency Quantification Algorithm (External) FrameworkKorean Specific RIPBA Framework RI-Design Framework Reg. Framework for New Rx. (Ex. Tech. Neutral)

8 R&D Results Integration of Internal & External PSA Model –A S/W for the Automatic Generation of External PSA Model (AIMS) One Top Internal PSA Model + Fire DB  One Top Fire PSA Model –New Quantification Algorithm for External PSA Model (JSTAR) Integrated Assessment of Risk & Performance –Detailed FT Model for BOP FREX –ZBDD based –EPRI R&R: CAFTA + FTREX Digital I&C PSA –DI&C Induced IE DB –Rel. Analysis Methods for HW/SW –HRA for Digitalized MCR Based on the trainings at simulator of advanced reactor Enhancing Human Performance –OPERA DB video taped >100 cases of operator trainings at simulator –Complexity Measure: TACOM Seismic PSA –Korean Specific Hazard Curve –Seismic PSA Code –Shaking Table Exp. for Digital MCC

9 Future Direction??