Research Article
Modelling of Severe Accident and In-Vessel Melt Retention Possibilities in BWR Type Reactor
Table 1
General data of BWR-5 [
14–
16].
| | Parameter | Value |
| | Control | 109 control rods of SS with Boron carbide or Boron carbide plus Hafnium.
Total mass 580 kg. |
| | Fuel | 444 fuel assemblies. Matrix 8x8 with 2 water rods.
Active core length 3.58 m.
Number of fuel rods per assembly 62 |
| | Pressure | 6.93 MPa nominal |
| | Power (thermal) | 2029 |
| | Steam flow | 1100 kg/s |
| | Recirculation pumps | 2 |
| | Recirculation nominal flow | 2565 kg/s |
| | Feed water flow | 1097 kg/s |
| | Number of jet pumps | 20 |
| | Vessel | Made of carbon steel, internally clad with stainless steel;
Total height; 20.8 m, diameter 5.30 m;
thickness from 0.13 to 0.19 m; |
| | Lower head | radius (cylindrical part) = 2.71 m;
thickness (cylindrical part) = 0.19 m;
radius (hemispherical part) =2.87 m;
thickness (hemispherical part) = 0.19 m;
heat surface (hemispherical part) = 38.5 m2; |
| | Mass of Zircaloy | Total mass in the core 27045 kg.
Claddings 20745 kg
Control rods and fuel boxes 6300 kg |
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