FUEL REVIEW | DESIGN DATA


VVER fuel design data (continued) Westinghouse


VVER-440 VVER-440


Assembly geometry Design


No. of rods per assembly – Fuelled


Fuel rod pitch [mm] Hex


shroud 127 126


1st generation Hex


shroud 127 126


– Unfuelled 11 -


Overall assembly length [mm] Overall assembly width [mm] Rod length [mm]


Pellet stack height [mm] Rod outside diameter [mm] Pellet length [mm]


Pellet outside diameter [mm] Pellet internal diameter [mm] Pellet density [g/cm3


]


Avg. linear fuel rating [kW/m] Peak linear fuel rating [kW/m] Clad material


Clad thickness [mm]


Max. clad temperature [°C] Spacer grid material No. of spacer grids


Avg. burnup [MWd/kgU] Max. burnup [MWd/kgU]


RBMK fuel design data


TVEL Fuel Company RBMK-1000


UO2 Assembly geometry


No. of rods per assembly – Fuelled


Overall assembly length [mm]


Overall assembly width [mm]


Enrichment (% U-235) – Top and bottom of FA – Middle of FA


Fuel rod length [mm]


Pellet outside diameter [mm]


Pellet density [g/cm3 ]


Average linear fuel rating [kW/m]


Peak linear fuel rating [kW/m]


Clad material Clad thickness (mm)


Maximum clad temperature [°C]


Spacer grid material


Avg. discharge burnup [MWd/kgU]


Max. assembly burnup [MWd/kgU]


+Er (2.8% U-235) UO2 +Er (avg 3% U-235)


Circular array Circular array 37 36


37 36


– Unfuelled 11 10014


79


2.8 2.8 2.8


3640 13.63 9-12 15.3


35


Zr-1%Nb 0.85


350 10014 79


average - 3.0% 2.5 3.2


3640 13.63 9-12 15.3


35


Zr-1%Nb 0.85


350


Stainless steel Stainless steel 30


35 34.5 40.3 Assembly geometry No of pins per assembly


Overall assembly length [mm]


Pin length [mm]


Active fuel length, [mm] Pin outside diameter [mm]


Pellet diameter [OD/ID] [mm]


Pellet height [mm] Pellet density [TD%]


MOX weight per assembly [kg] PuO2


enrichment [average %]


Peak linear heat rating [W/cm]


Clad material Clad thickness [mm]


MOX clad mid wall hot spot temp [°C]


Hexcan material Peak burnup [GWd/t oxide]


Average burnup [GWd/t oxide]


3188 144.2 2517 -


8.9 9.1


7.63 -


95% -


35


Zirlo 0.55 360


Zirlo -


>40 -


12.2 3217 145


2540 2360 9.1


9-12 7.6 1.4


10.4-10.7 12.96 32.5


Zr-1%Nb 0.65 350


Zr-1%Nb


47 50


VVER-440 Working FA


2nd generation Hex


shroud 127 126 1


12.3 3217 145


2601.5 2480 9.1


9-12 7.6 1.2


10.4-10.7 12.96 32.5


Zr-1%Nb 0.65 350


Zr-1%Nb


TVEL Fuel Company


VVER-440 Control FA


2nd generation Hex


shroud 127 126 1


12.3


3200 145


2540 2360 9.1


9-12 7.6 1.2


10.4-10.7 12.96 32.5


Zr-1%Nb 0.65 350


Zr-1%Nb


42 52


VVER-440 Working FA


3rd generation Hex


skeleton 127 123 4


12.6 3221 145


2601.5 2480 9.1


9-12 7.8 -


10.4-10.7 12.96 32.5


Zr-1%Nb 0.57 350


Zr-1%Nb 61 VVER-440 + (GD2-M+) Working FA


2nd generation Hex


shroud 127 126 1


12.3 3217 145


2601.5 2480 9.1


9-12 7.8 -


10.4-10.7 12.96 32.5


Zr-1%Nb 0.57 350


Zr-1%Nb 61 Control FA


2nd generation Hex


shroud 127 126 1


12.3


3200 145


2540 2360 9.1


9-12 7.8 -


10.4-10.7 12.96 32.5


Zr-1%Nb 0.57 350


Zr-1%Nb


- ----- 51 57


FBR design data


DAE (India) PFBR


500 MWe


Hexagonal 217


4500 2580


1000 6.6


5.55/1.8 7


94 50


24.4 450


20% CW 15


Cr-15Ni-Ti-Mo stainless steel


0.45 693


20% CW 15


Cr-15Ni-Ti-Mo stainless steel


100 68


Assembly geometry


Number of fuel rods in the assembly


Overall assembly length [mm] Overall assembly width [mm] Rod length [mm]


Rod outside diameter [mm] Fuel type [pellet material]


Active fuel pellet diameter [OD/ID] [mm]


Pellet height [mm] Pellet density [g/cm3


]


Uranium weight in the fuel per assembly [kg]


– Enriched – Depleted


Fuel enrichment [U-235 content in U] in the core [%]


Peak linear fuel rating [kW/m] Clad material


Clad thickness [mm]


Maximum clad inside wall temperature [°C]


Hexagonal tube material


Maximum assembly burnup [MWd/kgU]


101 17 FBR design data (continued)


TVEL Fuel Company BN-600 (three varieties)


Hexagonal 127


3500 96


2440 6.9


UO2


5.95/1.6 9


10.5 -


28.9 19.8


21 48


16%Cr-15%Ni stainless steel 0.4


710


12%Cr stainless steel 105


112 26 61 686868


24 | September 2023 | www.neimagazine.com


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