Quenching Heat Transfer Experiment

UNIST molten core and coolant interaction experimental facility (UNICORN): Analysis of metallic fuel relocation behavior and debris bed porosity in 19-pin core structure of SFR

• Hydraulic control rod drive mechanism (CRDM) for passive in-core cooling system (PINCs)
• Integrated system (Hydraulic CRDM + Hybrid control rod)
  • Heat removal test – 4-finger control rod assemblies
  • Elevation control – Step-up and down
  • Rod drop test – free drop (600 mm)

• Heat pipe visualization for understanding the operating mechanism (Heat transfer, operation limits)