Scoping analysis of fission product behavior and transport in the primary coolant system for postulated N Reactor severe accidents

Technical Report · Mon Feb 01 04:00:00 EST 1988

OSTI ID:7049077

Cronenburg, A W

Scoping analyses are presented of fission product release, chemical form, transport, and deposition behavior for N Reactor loss-of- coolant accidents leading to significant fuel oxidation and melting. At fuel melt conditions 100% release of the noble gas (Xe and Kr) inventory is predicted. After complete oxidation of the metallic U fuel, significant release of other volatile fission products is predicted, ranging from 100% release of the I and Te inventories to about 30% Cs, 5% Ru, and 1% Sr. Once released from fuel, reactive volatile fission products will mix and chemically react with the steam/H{sub 2} effluent, forming principally hydride and hydroxide species (e.g., CsOH, H{sub 2}Te, RuOH, SrOH) in addition to CsI. Such species are predicted to condense and chemisorb on the relatively cold outlet piping surfaces, so that essentially complete fission product retention is predicted in the primary coolant system for all but the noble gases. 25 refs., 19 figs., 39 tabs.

• Research Organization: Westinghouse Hanford Co., Richland, WA (USA)
• Sponsoring Organization: DOE/DP
• DOE Contract Number: AC06-87RL10930
• OSTI ID: 7049077
• Report Number(s): WHC-SP-0071; ON: DE90009489
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
22 GENERAL STUDIES OF NUCLEAR REACTORS
220502* -- Nuclear Reactor Technology-- Environmental Aspects-- Radioactive Effluents
220700 -- Nuclear Reactor Technology-- Plutonium & Isotope Production Reactors
220900 -- Nuclear Reactor Technology-- Reactor Safety
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ACCIDENTS
ACTINIDE ALLOYS
ALKALI METAL COMPOUNDS
ALKALI METALS
ALKALINE EARTH METALS
ALLOYS
CESIUM
CESIUM COMPOUNDS
CESIUM HYDROXIDES
CESIUM IODIDES
CHEMICAL REACTIONS
CHEMISORPTION
COOLING SYSTEMS
DEPOSITION
ELEMENTS
ENERGY SYSTEMS
ENRICHED URANIUM REACTORS
FISSION PRODUCT RELEASE
FISSION PRODUCTS
FLUIDS
FUEL ELEMENTS
GASES
GRAPHITE MODERATED REACTORS
HALIDES
HALOGEN COMPOUNDS
HALOGENS
HYDROGEN COMPOUNDS
HYDROXIDES
INORGANIC PHOSPHORS
IODIDES
IODINE
IODINE COMPOUNDS
ISOTOPES
KRYPTON
LOSS OF COOLANT
LWGR TYPE REACTORS
MATERIALS
MATHEMATICAL MODELS
METALS
N-REACTOR
NONMETALS
OXIDATION
OXYGEN COMPOUNDS
PHOSPHORS
PLATINUM METALS
PLUTONIUM PRODUCTION REACTORS
POWER REACTORS
PRIMARY COOLANT CIRCUITS
PRODUCTION REACTORS
RADIATION TRANSPORT
RADIOACTIVE MATERIALS
RARE GASES
REACTOR ACCIDENTS
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTOR SAFETY
REACTORS
RUTHENIUM
SAFETY
SEMIMETALS
SEPARATION PROCESSES
SORPTION
STRONTIUM
TELLURIUM
TRANSITION ELEMENTS
URANIUM ALLOYS
VAPOR CONDENSATION
WATER COOLED REACTORS
XENON