| Reactor Name | Trino Vercellese | |
|---|---|---|
| Type of Reactor |
PWR
|
|
| Power |
825 MWth
|
|
| Initial U235 Enrichment (%) |
2.7/3.1/3.9
|
|
| Operation |
1964-71
|
|
| Fuel Pin | Fuel Pellet Diameter (mm) |
8.9
|
| Length of Pellet Stack in Fuel Rods (mm) |
2641
|
|
| Clad Thickness (mm) |
0.383
|
|
| Clad Material |
SUS304
|
|
| Fuel Assembly | Rod Array |
15*15
|
| Number of Rods |
208
|
|
| Fuel Rod Pitch (mm) |
13.03
|
|
| Control Rod Absorbing Material |
Ag-In-Cd
|
|
| Core | Equivalent Diameter (mm) |
2499
|
| Active Height (mm) |
2649
|
|
| Number of Assembly |
120
|
|
| Inlet Temp (deg.) |
266.5
|
|
| Outlet Temp (deg.) |
297.5
| |
| Data | 1st cycle | 2nd cycle |
|---|---|---|
| CORE | ||
| Power output | 825 MW(th) | |
| Coolant pressure | 140 kg/cm2 | |
| Coolant effective flow rate | 16,000 t/h | |
| Coolant inlet temperature | 266.5 deg. | - |
| Coolant average temperature | 282 deg. | 269 deg. |
| Coolant outlet temperature | 297.5 deg. | - |
| Core average power density | 64.4 kW/l(21kW/kgU) | 69.9 kW/l(22.8kW/kgU) |
| Max. design linear power density | 12.4 kW/ft | 11.4 kW/ft |
| Max. rod surface temperature | 340 deg. | - |
| Equivalent diameter | 2499 mm | 2400 mm(???) |
| Active height | 2649 mm | |
| Number of square fuel assemblies | 120 | 112 |
| Number of cruciform fuel assemblies | 52 | |
| Number of regions | 3 | |
| Initial enrichments(square assemblies) | 2.72-3.13-3.90 % | |
| Initial enrichment(cruciform assemblies) | 2.72 % | |
| Reload Assemblies enrichment | - | 4.00 % |
| Number of control rods | 28 | |
| UO2 in square fuel assemblies | 42,321 kg | 39,629 kg |
| UO2 in cruciform fuel assemblies | 2,313 kg | |
| Total UO2 weight | 44,634 kg | 41,939 kg |
| Total U weight | 39,873 kg | 36,968 kg |
| SQUARE FUEL ASSEMBLY | ||
| Rod array | 15 x 15 | |
| Number of fuel rods | 208 | |
| Side of square cross section | 200.0 mm | |
| Total length | 3208.8 mm | |
| UO2 weight | 353.81 kg | |
| FUEL PELLET | ||
| UO2 density | 96.5 %T.D. | |
| Diameter | 8.90 mm | |
| Length | 15.3 mm | |
| Dishing depth | 0.33 mm | |
| Number of pellets per rod (approx.) | 173 | |
| Length of pellet stack in fuel rod | 2641 mm | |
| Clad-pellet clearance | 0.114 mm | |
| FUEL CLAD | ||
| Inside diameter | 9.02 mm | |
| Wall thickness | 0.383 mm | |
| Material | SS AISI 304 | |
| CRUCIFORM FUEL ASSEMBLY | ||
| Number of fuel rods | 26 | |
| Fuel length | 2403 mm | |
| Rod outer diameter | 10.92 mm | |
| UO2 weight | 44.00 kg | |
| CONTROL ROD | ||
| Absorbing material | 5%Cd - 15%In - 80%Ag | |
| Cladding material | Type 304 SS | |
| Number of absorber rods | 32 | |
| Absorber length | 2692 mm | |
| Absorber rod diameter | 10.01 mm | |
| Clad outer diameter | 10.95 mm | |
| Clad thickness | 0.432 mm | |
| Cycle | Periods | Days | Max. power level(MWth) | Core burnup(MWd/t(U)) | Coolant avg. temp.(deg.) | Control group insertion | Approx. boron concentration(ppm) |
|---|---|---|---|---|---|---|---|
| 1 | 23.10.1964 05.06.1965 |
226 | 615 | 2260 | 282 | 30% | 1300-1050 |
| Shutdown | 86 | - | |||||
| 31.08.1965 20.05.1966 |
263 | 825 | 4085 | 278 | 4% | 1150-650 | |
| Shutdown | 51 | - | |||||
| 11.07.1966 28.04.1967 |
292 | 825 | 5245 | 278 | 4% | 650-0 | |
| Shutdown | 1117 | - | |||||
| 2 | 20.05.1970 09.07.1971 |
416 | - | - | 269 | - | - |
|
Sample Name
|
Type
|
U-235 Enrichment[wt%] |
Burn up(GWd/t)*
|
Sampling Position
|
Laboratory | |
|
Assembly
|
Pin
|
|||||
| ITLTRNPWR-1 |
UO2
|
3.13
|
7.24 | Ispra | ||
| ITLTRNPWR-2 |
UO2
|
3.13
|
15.38 | Ispra | ||
| ITLTRNPWR-3 |
UO2
|
3.13
|
15.90 | Ispra | ||
| ITLTRNPWR-4 |
UO2
|
3.13
|
11.53 | Ispra | ||
| ITLTRNPWR-5 |
UO2
|
3.13
|
16.56 | Ispra,Karlsruhe | ||
| ITLTRNPWR-6 |
UO2
|
3.13
|
17.45 | Ispra | ||
| ITLTRNPWR-7 |
UO2
|
3.13
|
12.37 | Ispra | ||
| ITLTRNPWR-8 |
UO2
|
3.13
|
18.00 | Ispra | ||
| ITLTRNPWR-9 |
UO2
|
2.719
|
7.81 | Ispra,Karlsruhe | ||
| ITLTRNPWR-10 |
UO2
|
2.719
|
15.51 | Ispra,Karlsruhe | ||
| ITLTRNPWR-11 |
UO2
|
2.719
|
12.05 | Ispra | ||
| ITLTRNPWR-12 |
UO2
|
2.719
|
8.71 | Ispra | ||
| ITLTRNPWR-13 |
UO2
|
2.719
|
14.77 | Ispra | ||
| ITLTRNPWR-14 |
UO2
|
2.719
|
15.19 | Ispra,Karlsruhe | ||
| ITLTRNPWR-15 |
UO2
|
2.719
|
11.13 | Ispra,Karlsruhe | ||
| ITLTRNPWR-16 |
UO2
|
2.719
|
7.82(Cs-137 Destructive) | Ispra | ||
| ITLTRNPWR-17 |
UO2
|
2.719
|
14.49 | Ispra,Karlsruhe | ||
| ITLTRNPWR-18 |
UO2
|
2.719
|
10.19 | Ispra,Karlsruhe | ||
| ITLTRNPWR-19 |
UO2
|
3.13
|
15.17(Cs-137 Destructive) | Ispra | ||
| ITLTRNPWR-20 |
UO2
|
3.13
|
26.88 | Karlsruhe | ||
| ITLTRNPWR-21 |
UO2
|
3.13
|
23.87 | Ispra | ||
| ITLTRNPWR-22 |
UO2
|
3.13
|
24.55 | Ispra,Karlsruhe | ||
| ITLTRNPWR-23 |
UO2
|
3.13
|
19.21 | Ispra | ||
| ITLTRNPWR-24 |
UO2
|
3.13
|
12.86(Cs-137 Destructive) | Ispra | ||
| ITLTRNPWR-25 |
UO2
|
3.13
|
20.60 | Ispra,Karlsruhe | ||
| ITLTRNPWR-26 |
UO2
|
3.13
|
23.72 | Ispra,Karlsruhe | ||
| ITLTRNPWR-27 |
UO2
|
3.13
|
24.52 | Ispra | ||
| ITLTRNPWR-28 |
UO2
|
3.13
|
24.30 | Ispra,Karlsruhe | ||
| ITLTRNPWR-29 |
UO2
|
3.13
|
23.41 | Karlsruhe | ||
| ITLTRNPWR-30 |
UO2
|
3.13
|
19.25 | Karksruhe | ||
| ITLTRNPWR-31 |
UO2
|
3.13
|
24.85(Cs-137 Destructive) | Ispra | ||
| ITLTRNPWR-32 |
UO2
|
3.13
|
25.26 | Karlsruhe | ||
| ITLTRNPWR-33 |
UO2
|
3.13
|
24.33 | Ispra | ||
| ITLTRNPWR-34 |
UO2
|
3.13
|
24.31(Cs-137 Destructive) | Ispra | ||
| ITLTRNPWR-35 |
UO2
|
3.13
|
23.93 | Karlsruhe | ||
| ITLTRNPWR-36 |
UO2
|
3.13
|
24.70 | Ispra,Karlsruhe | ||
| ITLTRNPWR-37 |
UO2
|
3.897
|
3.44 | Ispra | ||
| ITLTRNPWR-38 |
UO2
|
3.897
|
7.61 | Ispra | ||
| ITLTRNPWR-39 |
UO2
|
3.897
|
12.17 | Ispra,Karlsruhe | ||
* Values by Nd-148 Method. If data from both laboratories (Ispra,Karlsruhe) are available, values from Karlsruhe are shown.
This shows the schematic figure of core of Trino Vercellese reactor. When you click a assembly name in this figure, you can see the position of fuel rod used for the post irradiation examinations.