ACFM

Power Generation Applications

The power generation industry has a wide variety of inspection problems. many of which can be tackled using ACFM.

In common with the petrochemical industry, where ACFM is well established, power stations contain welded, painted structures and pipework well suited to ACFM. However many components contain cast iron, a rough surface material, that can make inspection difficult with conventional techniques. ACFM can overcome this by inspecting through a smooth sheet placed over the component to reduce the effects of surface roughness.

Furnace wall tube inspection is an example of very rough external surfaces. A special ACFM array probe with rollers was developed and used to detect and size defects enabling the plant operator to concentrate resources on replacing the tubes most likely to leak before the next shutdown.

Other specialied work carried out to solve complex inspection problems includes the inspection of turbine blades.

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