1. Summary of Int’l ITL Program (1)
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2. Summary of Int’l ITL Program (2)
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3. IET Facilities and Code Development
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4. KAERI T/H Safety Research
ITL for PWR
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5. KAERI T/H Safety Research
ITL for B&W PWR
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6. KAERI T/H Safety Research
ITL for AP600
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7. KAERI T/H Safety Research
LSTF
Design Basis :
Reference Plant : W 4-Loop PWR (3423 MWt)
Scaling :
FPFH, 1/48 Volume
Core Power : Max. 10 MW (14% of Scaled full power)
Methodology : Volume scaling
Design Characteristics
2 Loops Combined into 1 Loop
RPV Downcomer : Annulus (Gap size = 5.3 cm)
Pump coast-down : Controlled
Test Matrix
SB-LOCA, SGTR, N/C
Imitation of MIHAMA Accident
KAERI T/H Safety Research

8. KAERI T/H Safety Research
ROSA-AP600
Test Objectives
Confirmatory Testing of AP600
Design Basis :
Reference Plant : AP-600 (1940 MWt)
Scaling :
FPFH, 1/30 Volume
Core Power : Max. 10 MW (16% of Scaled full power)
Methodology : Volume scaling
Test Matrix
DBA with Single Failure Criterion :
1/2”, 1”, 2” Breaks
DEG-DVIB
Inadvertent ADS-1 Opening
Multiple Failures :
Multiple SGTR : 1.75 & 5 Tubes Break
MSLB (200% Break) + SGTR
SBO
Complete Closure of ADS1-3 V/V’s
Closure of 2 out of 4 ADS4 V/V’s
Closure of 3 out of 4 ADS4 V/V’s
Failure of 1 CMT
Failure of Both CMT’s
KAERI T/H Safety Research

9. KAERI T/H Safety Research
BETHSY
Design Basis :
Reference Plant : Framatome 3-Loop PWR (3423 MWt)
Scaling :
FPFH, 1/100 Volume
Core Power : Max. 3 MW (10% of Scaled full power)
Methodology : Volume scaling
KAERI T/H Safety Research

10. KAERI T/H Safety Research
SPES-2 (a)
Test Objectives
Examine the AP600 Safety System Response :
Simulate AP600 T/H Behavior Following Specified Scenarios
Check the Operation of CMT’s
Check the Effect of N2 Gas from Acc’s after Water Delivery
Check the ADS Depressirization Capability for Gravity Injection
Provide Information on Interactions between Passive SIS & Non-safety Active Systems
Verify the Computer Codes for Licensing Safety Analyses
Design Basis :
Reference Plant : AP-600 (1940 MWt)
Simulated Systems :
RCS, 2ry System upto MSIV
All Passive Safety Sys. : CMT’s, IRWST, PRHRS, ADS, Acc’s
Non-safety Active Sys. : CVCS, NRHRS, SFW
Scaling :
FPFH, 1/395 Volume
Core Power : Max. 5 MW (100% of Scaled full power)
Methodology : Volume scaling
KAERI T/H Safety Research

11. KAERI T/H Safety Research
SPES-2 (b)
Design Characteristics
HL & CL Dia. : Froude No. Preservation
Downcomer :
Annular Section + Tubular Section
Two Sections Have the Same Frictional DP per Length
Total Volume is Scaled by the Volume Scaling Factor
2 RCP’s :
2 CL’s are Connected to a Single RCP
Centrifugal, Single-Stage, Horizontal Shaft
Horizontal Suction Line, Vertical Downward Discharge Line
Pzr :
Volume Scaled, and Bottom Elevation and Level Swelling Preserved
Pzr Surge Line :
L/D Preservation for Horizontal Section and Same Inclination Angle for Inclined Section
Preservation of Frictional Press. Drop due to its Important Role during ADS Actuation
Steam Generator
2 Identical Geometry
Inconel-600 Tubes (13 ea) Assembled in Square Array
2ry Side Volume : Same Scaling Factor Applied
Preserve All Vertical Elevations upto Steam Separator Top
(Excluding the Steam Dome Section)
KAERI T/H Safety Research

12. KAERI T/H Safety Research
SPES-2 (c )
Passive Safety Systems :
CMT’s :
Metal Mass Scaled to the Prototype
Double-Walled (Pressurized with 70 Bar Air in Annulus) Vessel for Preserving Steam Condensation at Wall
Accumulators : 2 EA, Volume-scaled
1 PRHR with Full-Heigth H/X (Frictional DP Maintained and H/T Area Scaled)
IRWST : Water Volume Scaled & Elevation Maintained
ADS :
Each Stage is Simulated with 1 Ball V/V with an Orifice in Series for Scaling Flow Area
3 Stages Share a Common Discharge Line Connected to a Condenser & a Collection Tank (Load Cells Installed)
Others
Non-passive Sys. (CVCS, NRHRS, SFW) : Frictional Pressure Drop Maintained
Breaks : Simulated by a Spoolpiece with a Break Orifice & QOV
Catch Tanks : Flow from Break, ADS, 2ry Relief V/V is Discharged to Different Catch Tanks with Load Cells
Test Matrix
SB-LOCA’s (9 Tests) : 1,2” CLB’s, 2” DVIB, DEG-DVIB, 2” CMT BLB
Single SGTR (3 tests) : with Both Active and Passive Non-safety Sys.
MSLB (1 Tests)
KAERI T/H Safety Research

13. KAERI T/H Safety Research
APEX
Test Objectives
Examine the AP600 Safety System Response :
Simulate AP600 T/H Behavior Following Specified Scenarios
Especially Investigate the Gravity Draining in Coupled Systems and Long-term Recirculation Cooling
Validate the Computer Codes for Design Certification Analyses
Confirmatory Test : by NRC
Design Basis :
Reference Plant : AP-600 (1940 MWt)
Scaling :
RPRH (1/4 Height, 2.8 Mpa), 1/192 Volume
Core Power : Max. 0.6 MW ( % of Scaled full power)
Methodology : Two-tiered scaling
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14. Characteristics of Component Design
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15. Experimental Focus for PWR-ITL
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