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Multivariate Analysis of Impact Erosion by Dolomite Particles

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Document pages: 9 pages

Abstract: Erosion on the wall surface due to hard particle impact is a well-known challenge encountered in industrial pneumatic conveying systems. Surface erosion by particle impact depends on many factors. Numerous studies have shown the dependency of erosion on different factors using univariate experiments. However, there have not been many multivariate analyses of erosion with focus on industrial applications. The present study involves multivariate investigation to identify and quantify the effects of six factors on erosion using Design of Experiments (DoE) methodology. A fractional factorial design was selected (26-2 with 3 center points) and analyzed using “Sirius 10.0TM” design package. The statistical analysis of the results using ANOVA and PLS allows a closer study of the significance of main factors and interactions. Confounding (also called aliasing) of the main and interaction effects is the price paid for using a fractional design and it may increase the complexity of the analysis. Therefore, additional experiments are needed to isolate the effects of main factors and interaction terms.

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