Flow-accelerated corrosion

Page 1 : Flow-accelerated corrosion

Page 2 : Experimental loop and visualization of flow structure
Page 3 : Investigation of Influence of Inlet Flow Conditions on Flow Structure in a Dual Elbow

Flow-accelerated corrosion in complex piping system

A large number of pipe failures in a nuclear power plant occur in a multi-component region such as the bends, the orifices and so on. In specially, it has been reported that flow-accelerated corrosion (FAC) frequently occurs in a multi-elbow. Clarifying the flow structure inducing FAC is important to design nuclear power plants which has high reliability.
We are investigating mechanism of FAC occurring at a multi-elbow by visualizing flow.

Mechanism of Flow-accelerated corrosion and wall thinning induced by FAC