Small and Modular Reactor Development, Safety and Licensing in Korea

Transcription

1 Small and Modular Reactor Development, Safety and Licensing in Korea IAEA TWG-LWR Vienna, June 18-20, 2013 Presented by Jong-Tae Seo 1

2 Outline I. SMR Development in Korea II. SMART Development III. SMART Characteristics IV. Summary 2

3 I. SMR Development in Korea 3

4 SMR Development in Korea SMART Development Project Started in 1997 Integral small light water reactor with 330MWth power Standard design approval from KINS (July 2012) First unit construction in near future SMR Development based on Light Water Reactor Technology Feasibility study for design development was performed 50 MWe modular reactor system for global market Government funding has been postponed Long-Lead Advanced Technology Development for SMR Boron free operation, Internal CEDM, etc. Initiated in

5 SMRs Under Development 5

6 II. SMART Development 6

7 Development History Conceptual Design Basic Design SMART-P (65MWt) Development Pre Project Design Optimi zation SMART Standard Design Approval Domestic Const. & Export Total 1500MY and ~300M$ are invested 7

8 SMART Development 8 8

9 Standard Design 9

10 Technology Validation Design Data Safety Tests Technology Validation Tools & Methods Performance Tests Standard Design Core SET Freon CHF Water CHF Safety SET Safety Injection Helical SG Heat Transfer Condensation HX Heat Transfer Integral Effect Tests VISTA SBLOCA SMART-ITL Digital MMIS Control Unit Platform Communication Switch Integral Safety System Code Devel/V&V Safety: TASS/SMR-S Core TH: MATRA-S Core Protec./Monitor. Design Methodology DNBR Analysis Accident Analysis (SBLOCA, LOFA, ) Integral Rx Dynamics V&V Technical Reports Fuel Assembly Out-of-Pile Mech./Hydr. RPV TH RPV Flow Distribution Flow Mixing Header Ass. Integral Steam PZR PZR Level Measurement Components RCP Hydrodynamics RPV Internals Dynamics SG Tube Irradiation Helical SG ISI In-core Instrumentation Digital MMIS MMI Human Interface Control Room FSDM Standard SAR Standard Design Approval 10

11 Core & Fuel 11

12 Fuel Mechanical Performance Test 12

13 Mechanics and Components RPV Dynamics Tests, RCP Mockup Test and Helical ISI Test SG Tube Material (A690) Irradiation Test 13

14 Thermal-Hydraulics Experiment 14

15 SMART ITL(Integral Test Loop) World s Unique and Largest Full Scope Accident Simulation - 1:1 Height, 1/49 Volume 15

16 Man-Machine Interface System Digital Main Control Room Validation - FSDM (Full-scope Dynamic Mockup) 16

17 Licensing Pre-application Review by KINS (Feb. 2010) Application of Standard Design Approval (Dec. 30, 2010) CDM, SSAR, EOG and related documents Document Conformance Evaluation (~Feb. 2011) 1 st Round Questionnaire : April 30, nd Round Questionnaire : July 31, rd Round Questionnaire : October, th Round Questionnaire : December, 2011 Additional Questionnaire: January ~ April, 2012 Standard Design Approval : July 4,

18 III. SMART Characteristics 18

19 SMART Application 330MW th Integral PWR Electricity Generation, Desalination and/or District Heating Intake Facilities SMART Steam Transformer Steam Electricity Plant Data Power : 330 MWt Water : 40,000 t/day Electricity: 90 MWe Seawater Potable water Desalination Plant System-integrated Modular Advanced ReacTor Electricity and Fresh Water Supply for a City of 100,000 Population (Korean) Suitable for Small Grid Size or Localized Power System 19

20 Integral Reactor Loop Type PWR X X X X X X 20

21 Reactor Vessel Assembly No large RPV penetrations Less than 2 inch penetrations In-Vessel Steam Pressurizer 8 Helical Steam Generators Once through SG Produce superheated steam 4 Reactor Coolant Pumps Canned motor type Horizontally mounting 57 Fuel Assemblies Standard 17x17 UO 2 (< 5 w/o U 235 ) w/ reduced height (2m) Performance proved at operating PWRs 21

22 RPV - Internals 22

23 Balance of Plant Containment Building Hydrogen Recombiner: 12 Passive Autocatalytic Recombiners Containment Spray System (2 Train) Containment Isolation System Aircraft Impact Proof EDG Bldg Auxiliary Building Quadrant Wrap-around Fuel Building Inside Aircraft Impact Proof TBN Bldg Single Basemat with Containment (Seismically Resistant) Aux. Bldg Containmen Composite Bldg 23

24 General Arrangement 24

25 Enhanced Safety Passive Residual Heat Removal system - 20 days grace period against Fukushima-type accident Passive Hydrogen Removal System - Prevent Hydrogen Explosion Containment Building - Air craft (Boeing767) Crash Proof - Low Hydrogen Concentration Minimize Fuel Failure - Fuel submerged during all DBA Passive Ex-Vessel Cooling - Prevent Vessel Failure 25

26 SMART vs. Fukushima Station Blackout Event Grace Time Scenario PRHRS 1 Yes Grace Time * 20 Days** 2 No 2.6 Days Rx Shutdown Recharge ECT EDG STOP Blackout Core Cooling EDG Start Batteries Rx Overheat (8 hours) Fukushima 26

27 IV. Summary 27

28 Summary Korea Successfully Developed SMART First to the Market The standard design of SMART and Technology Validation was completed Standard design approval was granted on July 4, 2012 Safe in Fukushima Accident Condition The core is maintained undamaged for up to 20 days without any corrective actions by the operator Multiple Application Electricity generation, seawater desalination, district heating and process heat to industries and Continues SMR Development Construction of SMART and Advanced Technology Development 28