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http://dx.doi.org/10.3795/KSME-B.2011.35.10.1105

Evaluation of Liquid Droplet Impingement Erosion through Prediction Model and Experiment  

Yun, Hun (KEPCO Engineering & Construction Company, INC.)
Hwang, Kyeong-Mo (KEPCO Engineering & Construction Company, INC.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.35, no.10, 2011 , pp. 1105-1110 More about this Journal
Abstract
Flow-accelerated corrosion (FAC) is a well-known phenomenon that may occur in piping and components. Most nuclear power plants have carbon-steel-pipe wall-thinning management programs in place to control FAC. However, various other erosion mechanisms may also occur in carbon-steel piping. The most common forms of erosion encountered (cavitation, flashing, Liquid Droplet Impingement Erosion (LDIE), and Solid Particle Erosion (SPE)), have caused wall thinning, leaks, and ruptures, and have resulted in unplanned shutdowns in utilities. In particular, the damage caused by LDIE is difficult to predict, and there has been no effort to protect piping from erosive damage. This paper presents an evaluation method for LDIE. It also includes the calculation results from prediction models, a review of the experimental results, and a comparison between the UT data in the damaged components and the results of the calculations and experiments.
Keywords
Liquid Droplet Impingement Erosion; Wall Thinning; Erosive Mechanism;
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  • Reference
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