Research Article
Development Considerations of AREVA NP Inc.'s Realistic LBLOCA Analysis Methodology
Table 4
Summary of uncertainty quantification exercise.
| PIRT Parameter | Bias | | Min or | Max or |
| Break Size | N/A | N/A | 0.1 | 2 | Break discharge coefficients | ### | ### | ### | ### | Critical heat flux | ### | 0.0 | ### | ### | Film boling HTC | ### | Special | ### | N/A | Dispersed film boiling | ### | Special | ### | N/A | Tmin, | ### | ### | ### | ### | Power (inc. radial and axial shapes) | Treated as a sampled plant parameter | Stored energy (centerline temperature) | ### | ### | ### | ### | Metal-water reaction constant | 1 | 0.182 | 0.636 | 1.364 | Metal-water reaction exponent | 1 | 0.0134 | 0.9732 | 1.0268 | Decay heat uncertainty | 1 | 0.003 | 0.94 | 1.06 | Condensation interface HTC | ### | Uniform | ### | ### | Steam Generator Inlet Interphase Friction | ### | 0.0 | ### | ### | Hot wall (CHF multiplier) | ### | binary | ### | ### | Containment pressure (volume) | ### | uniform | min free volume | max free volume |
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