The South African Nuclear Energy Corporation (Necsa) has supplied the first locally produced safety related ASME III designed and certified Air Receiver Pressure Vessel to Eskom-owned Koeberg.

The Nuclear Manufacturing (NM) was achieved within the Pelindaba Enterprise Division of Group Necsa.

The Air Receiver Vessel was specified by Koeberg to be a safety class 2 nuclear vessel in a comprehensive Registered Professional Engineer (RPE) certified Design Specification.

Air Receiver Vessel

Necsa explained: “The purpose of the vessel is to pressurise the 20m containment building equipment hatch seals inter-space under all operating conditions in order to provide assurance of the condition of the seals.

“The vessel loading conditions associated with design, test, construction, operating and upset states were evaluated. The upset conditions include a postulated seismic event. It was shown that the vessel maintains structural integrity and function throughout all events.”

Koeberg Project Manager Neelan Rama and Design Engineer Mark Vernon collaborated throughout the project with the Necsa project team, which ensured alignment of code interpretations implemented and alignment in applying design input requirements as specified.

The NM teams consist of various stakeholders that were involved in the successful delivery of the vessel including, TÜV Rheinland performing ASME Authorized Inspection Agency services; Ezekoye Engineering Services LLC providing the RPE Design Specification review services and Unisont Engineering, Inc. that undertook the RPE Design Report review services.

“The capabilities demonstrated by NM in supplying the first N-stamp vessel in South Africa creates the opportunity for extending NM’s services and projects specifically where safety related equipment and services are required,” Necsa added.

 

Featured image: Necsa