Transition-Phase Calculation of a Large, Heterogeneous-Core LMFBR. [SIMMER-II Calculations]
Conference
·
OSTI ID:5906132
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
A mechanistic calculation of a complete transition-phase sequence for a large heterogeneous core LMFBR has been performed using SIMMER-II. Recriticalities occurred as the disruption progressed through a series of different subphases. The number and severity of recriticalities was directly related to the timing and scale of fuel removal and coherence of material motion. The energetics associated with transition-phase are not yet resolved but the understanding of the characteristics of disruption and the effects of uncertainties has been extended significantly.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP); US Nuclear Regulatory Commission (NRC)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5906132
- Report Number(s):
- LA-UR--81-2160; CONF-811103-20; ON: DE81028776
- Country of Publication:
- United States
- Language:
- English
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