Pellet-cladding mechanical interaction in Halden Assembly IFA-226
Instrumented Fuel Assembly (IFA) 226 was a (U,PU)O/sub 2/ fueled and zircaloy clad assembly which operated in the Halden Boiling Water Reactor, Halden, Norway, to a peak burnup in excess of 40,000 MWd/t. The assembly was instrumented with fuel rod elongation sensors to continuously monitor pellet-cladding mechanical interaction (PCMI) in selected fuel rods. The elongation behavior of these rods was evaluated to assess the influence of fabrication and irradiation variables on PCMI. The PCMI behavior at startup is contrasted with PCMI at high exposures. Observations on fuel fracture, fuel conditioning, axial racheting, ramp rate, strain relaxation, fuel swelling, and zircaloy growth, and their effects on PCMI, are included.
- Research Organization:
- Idaho National Engineering Lab., Idaho Falls (USA)
- DOE Contract Number:
- EY-76-C-07-1570
- OSTI ID:
- 6836040
- Report Number(s):
- NUREG/CR-0282; TREE-1266
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210400* -- Power Reactors
Nonbreeding
Otherwise Moderated or Unmoderated
BHWR TYPE REACTORS
BURNUP
DEFORMATION
ENRICHED URANIUM REACTORS
EXPERIMENTAL REACTORS
FUEL CANS
FUEL ELEMENTS
FUEL PELLETS
FUEL RODS
FUEL-CLADDING INTERACTIONS
HBWR REACTOR
HEAVY WATER COOLED REACTORS
HEAVY WATER MODERATED REACTORS
PELLETS
PERFORMANCE
PHYSICAL RADIATION EFFECTS
POWER REACTORS
RADIATION EFFECTS
RATCHETING
REACTOR COMPONENTS
REACTORS
RESEARCH AND TEST REACTORS
SWELLING
TANK TYPE REACTORS
THERMAL REACTORS
210400* -- Power Reactors
Nonbreeding
Otherwise Moderated or Unmoderated
BHWR TYPE REACTORS
BURNUP
DEFORMATION
ENRICHED URANIUM REACTORS
EXPERIMENTAL REACTORS
FUEL CANS
FUEL ELEMENTS
FUEL PELLETS
FUEL RODS
FUEL-CLADDING INTERACTIONS
HBWR REACTOR
HEAVY WATER COOLED REACTORS
HEAVY WATER MODERATED REACTORS
PELLETS
PERFORMANCE
PHYSICAL RADIATION EFFECTS
POWER REACTORS
RADIATION EFFECTS
RATCHETING
REACTOR COMPONENTS
REACTORS
RESEARCH AND TEST REACTORS
SWELLING
TANK TYPE REACTORS
THERMAL REACTORS