Fuel performance models for high-temperature gas-cooled reactor core design
Mechanistic fuel performance models are used in high-temperature gas-cooled reactor core design and licensing to predict failure and fission product release. Fuel particles manufactured with defective or missing SiC, IPyC, or fuel dispersion in the buffer fail at a level of less than 5 x 10/sup -4/ fraction. These failed particles primarily release metallic fission products because the OPyC remains intact on 90% of the particles and retains gaseous isotopes. The predicted failure of particles using performance models appears to be conservative relative to operating reactor experience.
- Publication Date:
- OSTI Identifier:
- Report Number(s):
- GA-A-16982; CONF-830451-26
- DOE Contract Number:
- Resource Type:
- Resource Relation:
- Conference: American Ceramic Society annual meeting, Chicago, IL, USA, 25 Apr 1983
- Research Org:
- GA Technologies, Inc., San Diego, CA (USA)
- Country of Publication:
- United States
- 21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; COATED FUEL PARTICLES; FUEL ELEMENT FAILURE; HTGR TYPE REACTORS; FISSION PRODUCT RELEASE; FUEL RODS; MATHEMATICAL MODELS; ACCIDENTS; FUEL ELEMENTS; FUEL PARTICLES; GAS COOLED REACTORS; GRAPHITE MODERATED REACTORS; REACTOR ACCIDENTS; REACTOR COMPONENTS; REACTORS 210300* -- Power Reactors, Nonbreeding, Graphite Moderated
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