Research Article
Code Development in Coupled PARCS/RELAP5 for Supercritical Water Reactor
| Fuel Pin | Fuel assembly |
| Fuel material | UO2 | Number of fuel rods | 240 | Fissile enrichment | 5% | Number of burnable absorber | 60 | UO2 density | 10.4215 g/cm3 | Number of water rods | 36 | Fuel radius | 0.439 cm | Number of control rods | 12 | Pellet to cladding gap | 0.008 cm | Water rod width | 3.36 cm | Cladding thickness | 0.063 cm | Water rod wall thickness | 0.04 cm | Fuel pitch | 1.12 cm | Fuel assembly pitch | 28.82 cm | P/D | 1.098 | Assembly wall thickness | 0.3 cm | Cladding and core structure material | MA956 | Interassembly gap | 0.2 cm |
| Burnable absorber | Core |
| Burnable absorber material | ZrB2 | Thermal power | 3575 MW | ZrB2 density | 6.08 g/cm3 | Number of fuel assemblies | 145 | Fuel material | UO2 | Heated fuel height | 4.27 m | Fissile enrichment | 5% | Total fuel pin height | 4.87 m | UO2 density | 10.4215 g/cm3 | Effective diameter | 3.93 m | Fuel radius | 0.439 cm | Volumetric power density | 69 MW/m3 | BA cover thickness | 0.0044 cm | Average linear heat rate | 19.2 kW/m | Pellet to cladding gap | 0.0036 cm | Fuel depletion plan | 3 cycles | Cladding thickness | 0.063 cm | Average burnup | 0/12.5/25 GWd/MTU |
| Control rod | Thermal-hydraulic parameters |
| Control rod material | B4C | System pressure | 25 MPa | B4C density | 2.59 g/cm3 | Coolant flow rate | 1843 kg/s | Control rod radius | 0.662 cm | Bypass ratio, η | 10% (184 kg/s) | Control rod guide tube inner radius | 0.912 cm | RPV inlet temperature | 280°C | Control rod guide tube thickness | 0.04 cm | RPV outlet temperature | 500°C | | | Thermal efficiency | 44.80% |
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