Data summary report for fission product release test VI-1
The first in a series of high-temperature fission product release test in a new vertical test apparatus was conducted in flowing steam. The test specimen was a 15.2-cm-long section of a fuel rod from the Oconee 1 PWR; it had been irradiated to a burnup of /approximately/42 MWd/kg. Using an induction furnace, it was heated under simulated LWR accident conditions -- 20 min at 2000 K and 20 min at 2300 K -- in a hot cell-mounted test apparatus. Posttest inspection showed severe oxidation but only minimal fragmentation of the fuel specimen; cladding melting was apparent only near the top end. Based on fission product measured in the fuel and/or calculated by ORIGEN, analyses of test components showed total releases from the fuel of 47% for /sup 85/Kr, 33% for /sup 125/Sb, 37% for /sup 129/I, 84% for /sup 110m/Ag, and 63% for /sup 137/Cs. Large fractions (36% and 30%, respectively) of the released /sup 110m/Ag and /sup 125/Sb were retained in the furnace above the fuel. Pretest and posttest analysis of the fuel specimen indicated a /sup 134/Cs release of 65%, which is very good agreement with the /sup 137/Cs value. 21 refs., 24 figs., 16 tabs.
- Research Organization:
- Nuclear Regulatory Commission, Washington, DC (USA). Div. of Systems Research; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 5960761
- Report Number(s):
- NUREG/CR-5339; ORNL/TM-11104; ON: TI89015501
- Country of Publication:
- United States
- Language:
- English
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21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
BWR TYPE REACTORS
FISSION PRODUCT RELEASE
PWR TYPE REACTORS
ANTIMONY 125
CESIUM 137
FUEL RODS
HELIUM
HYDROGEN
INVENTORIES
OCONEE-1 REACTOR
OXIDATION
STEAM
TESTING
VAPORS
VERY HIGH TEMPERATURE
ALKALI METAL ISOTOPES
ANTIMONY ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CESIUM ISOTOPES
CHEMICAL REACTIONS
ELEMENTS
ENRICHED URANIUM REACTORS
FLUIDS
FUEL ELEMENTS
GASES
INTERMEDIATE MASS NUCLEI
ISOTOPES
NONMETALS
NUCLEI
ODD-EVEN NUCLEI
POWER REACTORS
RADIOISOTOPES
RARE GASES
REACTOR COMPONENTS
REACTORS
WATER COOLED REACTORS
WATER MODERATED REACTORS
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