Research Article
Uncertainty and Sensitivity Analyses of a Pebble Bed HTGR Loss of Cooling Event
Table 1
PEBBED CRP-5 PBMR 400 DLOFC uncertainty study input parameters.
| | Parameter | Mean value | 2 Standard deviations (2σ) value | PDF type |
| | Reactor power | 400 MW | ±8 MW (2%) | Normal and uniform | | Reactor inlet gas temperature (RIT) | 500°C | ±10°C (2%) | Normal and uniform | | Decay heat multiplication factor | 1.0 | ±0.057 (5.7%) | Normal and uniform | | Fuel specific heat multiplication factor | 1.0 | ±0.06 (6%) | Normal and uniform | | Reflector specific heat multiplication factor | 1.0 | ±0.10 (10%) | Normal and uniform | | Fuel conductivity multiplication factor | 1.0 | ±0.14 (14%) | Normal and uniform | | Pebble bed effective conductivity multiplication factor | 1.0 | ±0.08 (8%) | Normal and uniform | | Reflector conductivity multiplication factor | 1.0 | ±0.10 (10%) | Normal and uniform |
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