Table 2: Specification of core components.
Item | Unit | Value | Note |
1. Driver fuel | |||
Core fuel material | - | MOX | Mixed oxide with PuO2-UO2 |
Core fuel pellet OD | (mm) | 5.4 | |
Core fuel density | (%T.D.) | 85 | |
Axial blanket material | - | depleted U | 235U/U = 0.003 |
Axial blanket pellet OD | (mm) | 5.4 | |
Axial blanket density | (%T.D.) | 93 | |
Fuel pin cladding material | - | SS316 | |
No. of fuel pins per assembly | - | 169 | |
Core fuel pin OD | (mm) | 6.5 | |
Core fuel pin cladding thickness | (mm) | 0.47 | |
Fuel pin pitch | (mm) | 7.9 | |
Fuel pin pitch/diameter | - | 1.22 | |
Fuel pin length | (mm) | 2800 | F.P. gas plenum located at upper |
Axial neutron shield material | - | SS316 | - |
Axial neutron shield length | (mm) | 645 | Volume ratio SS: Na = 73:27 |
Duct material | - | SS316 | |
Duct inner-flat-to-flat | (mm) | 104.6 | |
Duct thickness | (mm) | 3 | |
Assembly length | (mm) | 4200 | |
2. Radial blanket assembly | |||
Blanket fuel material | - | depleted U | 235U/U = 0.003 |
Blanket fuel pellet OD | (mm) | 10.4 | |
Blanket fuel density | (%T.D.) | 93 | |
Blanket pin cladding material | - | SS316 | |
No. of fuel pins per assembly | - | 61 | |
Blanket fuel pin OD | (mm) | 11.6 | |
Blanket fuel pin cladding thickness | (mm) | 0.5 | |
Blanket fuel pin pitch | (mm) | 13.15 | |
Blanket fuel pin pitch/diameter | - | 1.135 | |
Blanket fuel pin length | (mm) | 2800 | F.P. gas plenum located at upper |
3. Control rod | |||
Guide tube material | - | SS316 | All rod out simulated |
Guide tube OD | (mm) | 10.4 | |
Guide tube ID | (mm) | 10.4 | |
4. Neutron shield | |||
Material | - | SS304 | Volume ratio SS: Na = 78:22 |
5. Target assembly | |||
No. of total pins per assembly | - | 61 | Same as radial blanket assembly |
No. of tungsten pins per assembly | - | 61 to 43 | Depend on survey case |
No. of moderator pins per assembly | - | 0 to 18 | Depend on survey case |
Tungsten pellet density | - | 19.25 | |
Zirconium hydride pellet density | - | 5.6 | H/Zr stoichiometry = 1.7 |
Pellet stack height | (mm) | 930 | Same as active core height |