ORNL studies of fission product release under LWR accident conditions
High burnup Zircaloy-clad UO{sub 2} fuel specimens have been heated to study the release of fission products in tests simulating LWR accident conditions. The dominant variable was found to be temperature, with atmosphere, time, and burnup also being significant variables. Comparison of data from tests in steam and hydrogen, at temperatures of 2000 to 2700 K, have shown that the releases of the most volatile species (Kr, Xe, I, and Cs) are relatively insensitive to atmosphere. The releases of the less-volatile species (Sr, Mo, Ru, Sb, Te, Ba, and Eu), however, may vary by orders of magnitude depending on atmosphere. In addition, the atmosphere may drastically affect the mode and extent of fuel destruction.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- Sponsoring Organization:
- USNRC; Nuclear Regulatory Commission, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 6365283
- Report Number(s):
- CONF-9111134-1; ON: DE92003560
- Resource Relation:
- Conference: 2. workshop on light water reactor (LWR) severe accident research at JAERI, Tokyo (Japan), 25-27 Nov 1991
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
BWR TYPE REACTORS
FUEL ELEMENTS
FISSION PRODUCT RELEASE
PWR TYPE REACTORS
CESIUM
HEAT TRANSFER
HYDRAULICS
REACTOR ACCIDENTS
REACTOR SAFETY
URANIUM DIOXIDE
ZIRCALOY
ACCIDENTS
ACTINIDE COMPOUNDS
ALKALI METALS
ALLOYS
CHALCOGENIDES
ELEMENTS
ENERGY TRANSFER
ENRICHED URANIUM REACTORS
FLUID MECHANICS
MECHANICS
METALS
OXIDES
OXYGEN COMPOUNDS
POWER REACTORS
REACTOR COMPONENTS
REACTORS
SAFETY
THERMAL REACTORS
URANIUM COMPOUNDS
URANIUM OXIDES
WATER COOLED REACTORS
WATER MODERATED REACTORS
ZIRCONIUM ALLOYS
ZIRCONIUM BASE ALLOYS
220900* - Nuclear Reactor Technology- Reactor Safety
210100 - Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
210200 - Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled