Liquid droplet impingement erosion (LDI) is defined as an erosion phenomenon caused by high-speed droplet attack in a wet steam flow. Pipe wall thinning due to LDI is sometimes observed in a steam piping system of a power plant. In this study, for more realistic LDI evaluation in the power plant, we conducted LDI experiments in wet steam flow with steam apparatus, and tried to develop a new thinning rate prediction model (LDI model). High speed wet steam flow simulating the actual plant condition was employed in the experiments. As a result, the cushioning effect of liquid film on a material surface was observed and was incorporated into LDI model as a empirical equation with fluid parameter.
- Pressure Vessels and Piping Division
Development of a Wall Thinning Rate Model for Liquid Droplet Impingement Erosion
Morita, R, & Uchiyama, Y. "Development of a Wall Thinning Rate Model for Liquid Droplet Impingement Erosion." Proceedings of the ASME 2012 Pressure Vessels and Piping Conference. Volume 6: Materials and Fabrication, Parts A and B. Toronto, Ontario, Canada. July 15–19, 2012. pp. 1017-1023. ASME. https://doi.org/10.1115/PVP2012-78443
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