FUEL REVIEW | DESIGN DATA PHWR design data SNC-Lavalin Nuclear, Candu Energy1 28-element 37-element 43-element CANFLEX-ACR 19-element Assembly geometry – Fuelled
Circular array
Circular array
37
Circular array
43
Circular array
No. of rods per assembly --- 43 28
42 495 495 495 495
Circular array
19 ThO2 DAE (India)
19-element 19-element 19-element MOX
SEU
Circular array
Circular array
19
Circular array
19
Circular array
22
Circular array
- ----- 19
Rod outside diameter [mm] Pellet length [mm]
Pellet outside diameter [mm] Pellet density [g/cm3
]
U/Th/U+Pu weight per bundle [kg] Zr weight per bundle [kg] Avg. linear fuel rating [kW/m]
Peak linear fuel rating [kW/m]
Max. fuel temperature [°C] Clad material
Clad thickness [mm] Avg. clad temperature [°C]
102.5 493 15 22 14
10.6 19.8 2.1 -
- -
Zr4 0.4
320
102.5 493 13 16 12
10.6 19.2 2.2 -
- -
Zr4 0.4
330
102.5 493
102.5 490
495.3 81.74 493
10.7 16
2.2 25
58 -
0.36/0.39* 330
Zr4 -
350
15.22 15.8 14.4 10.6 13.4 1.37 283
57.73 Zr4
1800 Zr4
0.4 310
495.3 81.74 493
15.22 15.8 14.4 9.7
12.2 1.37 -
57.73
1370 Zr4
0.4 310
495.3 81.74 493
15.22 15.8 14.4 10.6 13.4 1.37 -
57.73
1805 Zr4
0.4 310
495.3 81.74 493
15.22 15.8 14.4 10.5 13.3 1.37 -
57.73
1800 Zr4
0.4 310
495.3 81.74 493
37
– Unfuelled --- 1 ------ Overall assembly length [mm] Overall max assembly width [mm] Rod length [mm]
13.5/11.5* 17.7/15.0* 12.6/10.7* 10.6 18.6 2.2 -
- -
20**/11.5 - -
15.22/13.08* 15.8/13.4* 14.4/12.2* 10.6 13
1.39 253
49.73
1600 Zr4
0.4 3103
495.3 102.4 493
13.08 13.4 12.2 10.6 19
2.26 274
57.74
18004 Zr4
0.4 3184
Grid material ---- ------ Avg. burnup [MWd/kgU or HM] 87 7
20 Max. burnup [MWd/kgU or HM] --- 35 VVER fuel design data TVEL Fuel Company
VVER 1200 TVS-1200
Assembly geometry
No. of rods per assembly – Fuelled
– Unfuelled Fuel rod pitch [mm]
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
]
Hex 331 312 19
12.75 4570 235.1 4033 3730 9.1
9-12 7.6 1.2
10.4-10.7 42
VVER 1000 TVSA
Hex 331 312 19
12.75 4570 235.1 3836 3530 9.1
9-12 7.6 1.4
10.4-10.7 44.8
VVER 1000 TVSA-12
Hex 331 312 19
12.75 4570 235.1 3836 3530 9.1
9-12 7.8 -
10.4-10.7 44.8
VVER 1000 TVS-2M
Hex 331 312 19
12.75 4570 235.1 3988 3680 9.1
9-12 7.6 1.2
10.4-10.7 44.8
VVER 1000 TVSA-PLUS
Hex 331 312 19
12.75 4570 235.1 3988 3680 9.1
9-12 7.6 1.2
10.4-10.7 44.8 VVER 1000
TVSA-T.mod.2 (Temelin)
Hex 331 312 19
12.75 4570 235.1 3978 3680 9.1
9-12 7.8 -
10.3-10.7 44.8
Westinghouse VVER 1000 WFA/RWFA
Hex 331 312 19
12.75 4583 234
3898 3530 9.14 9.4
7.84 -
10.52
Avg. linear fuel rating [kW/m] ------ 16.7 Peak linear fuel rating [kW/m] Clad material
Clad thickness [mm]
Max. clad temperature [°C] Spacer grid material
No. of spacer grids (mixing grid) Avg. burnup [MWd/kgU] Max. burnup [MWd/kgU]
PHWR footnotes:* Inner/outer ** Central 1 ®
Zr-1%Nb 0.65 352
Zr-1%Nb 13 60
up to 70
4Operating parameters for a typical 700MWe PHWR. 5 6
Zr-1%Nb 0.65 352
Zr-1%Nb 15 55 60
Nominal dimensions are provided. 2
Zr-1%Nb 0.57 352
Zr-1%Nb 12 60
up to 68
VVER footnotes: 1
22 | September 2023 |
www.neimagazine.com
Zr-1%Nb 0.65 352
Zr-1%Nb 13 58 66
Societatea Nationala “Nuclearelectrica” (Romania). 3
Zr-1%Nb 0.65 352
Zr-1%Nb 15 58 66
E110 (Zr+1%Nb) 0.585 353
E110 (Zr+1%Nb) 12 (3) 59 64
44.8
Zirlo1 0.525 -
Inconel/Zr-1%Nb 16 58
>60 Operating parameters for a typical 220MWe PHWR. 7 15 - 13
14 20
14 25
6.5 15
22-element 37-element
7 15
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