Spent nuclear fuel transport
Provision of transport including a transport container and qualified staff
| References: |
|
Slovenské elektrárne, a.s. – Transport of spent nuclear fuel since 2006 |
| ČEZ – NPP Dukovany – Transport of spent nuclear fuel from Jaslovské Bohunice to NPP Dukovany | ||
| Legislation: |
|
Transport container of C-30 type for spent nuclear fuel from the reactors of VVER 440 type is licensed as a transport facility of B (U) type. |
Transport of spent nuclear fuel from VVER 440 type reactors is performed by
transport container C-30, including services related to radiation and nuclear safety.
The transport set consists of a transport container of the C-30 type, reservoir of the
KZ-48 type (T-12 or T-13), and a railway carriage Uaais/Hx of the 9-713.0 type.
In transporting through the so-called “wet method,” spent nuclear fuel is put into
the reservoir of the KZ-48 type situated in the water medium in the packaging unit
of a transport container of the C-30 type. In the container, above the spent nuclear
fuel, a nitrogen cushion is formed with an overpressure of 0.1 MPa, which along
with the incinerators of hydrogen eliminates the occurrence of an explosive mixture.
The packaging unit is firmly connected to the special railway carriage Uaais/Hx of
the 9-713.0 type and they both make a transport set together.
| Reservoir | KZ-48 | T-12 | T-13 |
| Parameter | Limit value | ||
|
Maximum number of assemblies in a reservoir |
48 | 30 | 18 |
|
Maximum residual performance |
24 kW | 24 kW | 24 kW |
|
Maximum spent degree of fuel in reservoir |
55 MWd.kgU-1 | 50 MWd.kgU-1 | 55 MWd.kgU-1 |
|
Maximum residual performance of one assembly |
605 W | 605 W | 605 W |
|
Maximum enrichment in % U238 |
4,4 % | 3,82 % | 4,4 % |
Transport railway carriage – special railway carriage Uaais/Hx of the 9-713.0 type
|
Maximum design speed |
100 km/h |
|
Weight of empty carriage |
43,5 t ± 2 % |
|
Weight with empty packaging unit C30 |
112,5 t |
|
Weight with filled packaging unit C-30 |
123,0 t |
|
Length |
19 410 mm |
 |
| (PDF, 1,6 MB) |
