Research Article
Numerical Simulation of Decontamination of Airborne Fission Products during In-Vessel Release Phase by Containment Spray
Table 3
Important parameters used for simulation [
35].
| | Parameter | Symbol | Value |
| | Containment-free volume | (m3) | 57600 | | Containment-free surface | (m2) | ~34374 | | Leakage rate | (m3/s) | 14.15 | | Core damage fraction | (%) | 35% | | Fuel release fraction | (%) | 9.0 × 10−1 | | Water release fraction | (%) | 3.00 × 10−1–1.0 × 102 | | Recirculation rate | (m3/s) | 1–5 | | Recirculation filtration efficiency | (%) | 10%–90% | | Exhaust filter efficiency | (%) | 90–98 | | Fraction of immediately released radioisotopes | (%) | 2.0 × 10−1 | | Mixing rate | | 0.1–1.0 | | Spray flow rate | (m3/s) | 0.1–1.0 | | Droplet size | (micron) | 100–1000 | | Deposition velocity | (m/s) | 5.5 × 10−4 | | Resuspension rate | s−1 | ≤2.3 × 10−6 |
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