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Hinkley Point C – Blade construction Inspection

Jan 1, 2022 Consulting

Hinkley Point C nuclear power station (HPC) is a project to construct a 3,200 MWe nuclear power station with two EPR reactors in Somerset, England.

The site was one of eight announced by the British government in 2010 and in November 2012 a nuclear site licence was granted.

Power generation is made by two GE Arabelle nuclear steam turbine. One of the most important components in power generation by turbine is the shape of the blade.

As based a company based in switzerland, we were chosen to follow construction of blade of the 1st stage of the turbine by witnessing forming, welding, NDE and dimensional check.

Finished blades

Blades (airfoils) were made in Switzerland by a Swiss manufacturer specialized in airfoil construction for different applications, ranging from energy production to aviation.

Airfoil is made by shaping two plates, one for high pressure side and another for lower pressure side. After forming, the two halves are welded at the leading edge and trailing edge.

Finally after machining airfoil get his final shape and can be inspected for weld defects, geometrical deviations and surface condition.