TRANSPORT OF TWO STE AM GENERATORS FROM THE NUCLEAR POWER STATION KWO TO THE INTERIM STORAGE SITE OF EWN

Year
2007
Author(s)
Franz Hilbert - Nuclear Cargo + Service GmbH (DAHER-NCS)
Michael Kübel - Nuclear Cargo + Service GmbH, Germany
Burkhard Hartmann - EWN GmbH, Germany
File Attachment
100.pdf458.1 KB
Abstract
The paper presents the project to move two steam generators from the nuclear power station KWO to the interim storage site of EWN GmbH in Greifswald, Germany. The steam generators have a diameter of 3.6 m and a length of 16.6 m. The total mass is approx. 177 to. One of the steam generators must be equipped with additional shielding which adds another 25 to. The first issue to be solved was the categorization of the steam generators with respect to the Regulations. Due to the design of the inner surfaces which are not accessible it could not be proved with certainty that the steam generators co mply with SCO-II. Therefore the transport has to be carried out under special arrangement. However, the steam generators fulfill the requirements towards an industrial package of type IP -2. Second, the transport route had to be evaluated. The only feasibl e mode of transport is by barge on inland waterways. The itinerary will start at the reactor site of KWO which has direct access to the river Neckar and lead through inland waterways and channels to the Baltic Sea. After a short trip through the coastal wa ters the site of EWN will then be reached. At KWO and EWN a short road transport is necessary to reach the barge and the new storage site, respectively. The third problem to be solved was the tie -down of the large parts to the heavy cargo trailers used for the road transport and to the barge. NCS devised a solution which provides adequate safety, reduces radiation exposure of the personnel and is economically favorable for EWN.