Chemical modeling in the TRAFIC code

Conference · Wed Jan 01 04:00:00 EST 1992 · Transactions of the American Nuclear Society; (United States)

OSTI ID:6983294

Mignanelli, M A; Thetford, R ^[1]

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1. AEA Technology, Dorset (United Kingdom)

TRAFIC is the United Kingdom's fast reactor fuel pin modeling code. TRAFIC is applied to modeling normal reactor operation: for example, in support of the prototype fast reactor at Dounreay or for European fast reactor (EFR) design studies. It can also model pin behavior during transients. Current transient applications include accident simulations for EFR and analysis of High-Flux Reactor and Cabri experiments. In its decade of application, TRAFIC evolved sophisticated mechanistic models for the thermal and mechanical behavior of the pin, including fission gas release. The chemical modeling, however, had remained rather crude. The ALCHEMIST suite of subroutines was written to introduce some more detailed chemical modeling. The inventories of a set of [approximately]20 elements, selected to represent the fuel, the cladding, and the fission products, were calculated as functions of the local burnup and fuel composition.

• OSTI ID: 6983294
• Report Number(s): CONF-921102--
• Conference Information: Journal Name: Transactions of the American Nuclear Society; (United States) Journal Volume: 66
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210500* -- Power Reactors
Breeding
CABRI REACTOR
CHEMICAL ANALYSIS
COMPUTER CODES
ENRICHED URANIUM REACTORS
EPITHERMAL REACTORS
FAST REACTORS
FISSION PRODUCTS
FUEL CANS
FUEL ELEMENTS
FUEL PINS
HFR REACTOR
IRRADIATION REACTORS
ISOTOPES
MATERIALS
MATERIALS TESTING REACTORS
POOL TYPE REACTORS
RADIOACTIVE MATERIALS
REACTOR COMPONENTS
REACTORS
RESEARCH AND TEST REACTORS
RESEARCH REACTORS
T CODES
TANK TYPE REACTORS
THERMAL REACTORS
TRANSIENTS
WATER COOLED REACTORS
WATER MODERATED REACTORS