A comprehensive analysis of the erosion in a carbon steel boiler tube elbow through the use of 3D mapping of the corroded surface and CFD modelling

Abstract. Erosion corrosion is a common problem that affects boiler tubes, particularly those in power plants and industrial settings where hard water abrasive particles are present the flow. These can cause physical erosion to surface of which then lead further corrosion. This type often accelerated by high temperatures pressures system, as well presence oxygen. The combination chemical attack significant damage reducing their ability efficiently transfer heat potentially leading system failure. Therefore, it important predict rates prevent costly dangerous failures. focus this paper an investigation into effects caused on carbon steel tube elbow (ANSI 16.9). A semi-empirical procedure, considers properties material flow parameters, developed for predicting rates. study revealed primary occurred extrados bend. findings indicated within began separate from front wall surface, resulting along lateral sides. disappearance bend was also consistent with patters observed eroded pipe sample, extracted line. Moreover, demonstrated two different patterns separation region, matched qualitatively pattern sample wall.