Uncertainty in the ex-vessel source term caused by uncertainty in in-vessel models
Conference
·
OSTI ID:5982700
The uncertainty study presented here is, in a sense, an update on part of the QUEST study. Here, only the ex-vessel source term is considered. A version of the CORCON code, CORCON-MOD2, that was not available at the time of the QUEST study is used to describe the ex-vessel melt-concrete interaction. The VANESA code, which was also used in QUEST, is then employed to calculate ex-vessel aerosol and fission product release. This study is also restricted to uncertainties in code inputs that are propagated from in-vessel accident analysis codes such as MARCH. The goal of this work is an estimation of the uncertainty in the ex-vessel source term which results from uncertainty in in-vessel modelling. By implication, phenomena for which accurate in-vessel models are required will also be identified.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5982700
- Report Number(s):
- SAND-85-1664C; CONF-860204-36; ON: TI86004608
- Country of Publication:
- United States
- Language:
- English
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