Open Access

Table 3

Fuel rod data for fuel performance code startup for Zy-4 and SS claddings.

Parameter Value
Irradiation time 40 080 h
Cladding outer diameter 9.7 mm
Cladding inner diameter 8.43 mm
Cladding wall thickness 0.635 mm
Cladding roughness 0.000508 mm
Cladding material Zy-4/348 SS
Fuel pellet diameter 8.25 mm
Fuel stack height 3.81 m
Fuel pellet density 10.41 g/cm3
Fuel pellet roughness 0.000762 mm
Fuel pellet sintering temperature 1600 °C
Fuel pellet resintering density change 150 kg/m3
U-235 enrichment 3.48%
Plenum length 27.17 cm
Rod internal (He) pressure 2.62 MPa
Fuel rod pitch 1.27 cm

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