Modeling high burnup fuel thermochemistry, fission product release and fuel melting during the VERDON 1 and RT6 tests
- Germain, A.
- Sercombe, J.
- Riglet-Martial, C.
- Introïni, C.
- Noirot, L.
- Pontillon, Y.
- Maugis, Ph.
- Guéneau, C.
DOIAbstract
This paper presents simulations of the VERDON 1 and RT6 tests (temperature increase up to fuel-clad melting, oxidizing and/or reducing conditions within the furnace) performed with high burnup UO 2 fuel (i.e., up to 72 GWd/tU) and considering a coupling between irradiated fuel thermochemistry and a fission gas release model. The thermochemical calculations rely on the Thermodynamics of Advanced Fuels-International Database (TAF-ID) for the description of the phases likely to form from the 15 fission product considered in the fuel (Ba
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