Evaporator D
At the time of construction, Evaporator D was the largest nuclear decommissioning project in the UK. It was designed to continue reduction of the volume of highly active legacy waste.
Evaporator Delta was a new build project on the Sellafield site, managed and designed by Costain. PPS provided resource and materials for the CE& I equipment, containment and cabling installation. PPS was also responsible for the installation and maintenance of the site and associated facilities temporary supplies.
One of the key challenges to building Evaporator Delta was the location of the evaporator building – next to an operational facility and on a restricted footprint, which was adjacent to the site train lines. This made it difficult to build this complex plant in situ. The build phase was a combination of onsite rooms and corridors with the in-cell modules pre-fabricated off site, delivered by barge and installed by crane. CE&I install was scheduled round the delivery of the modules and hook up was an onsite activity.
Due to the constricted space within the envelope of the building it was difficult for different disciplines to work together compounded by the lack of space for storage or lay down areas. This lead to the necessity for a multi-disciplined build strategy by room working from the highest level to ground level within each room.
The necessity to work in collaboration with other disciplines was key to the success of the project. We also provided CE&I white- and blue-collar resource to support the commissioning phase of the project.