Javys, a.s.

Galéria

 

Provided services
(PDF, 1,6 MB)

 

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
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