Prediction of Erotion Rate in Two Elbows for Coal-Air Flow Based on Computational Fluid Dynamics Simulation

Abstract

Corrosion is one of the problems cause the material fail, leaks in the equipment and pipe systems in the industry which caused distrub in productivity of production in industry. There are some ways to prediction erosion in pipes, with the conventional or manual and CFD. CFD is to prediction erosion in turbulent air flows with variations in coal particle size and velocity of flowing air. The results of prediction erotion based on CFD is numerical and graphic, by displayed numerical results into visual results. These results include about the velocity, pressure, and temperature distribution in the air flow. So, CFD can be used to prediction pipe because it has wide coverage and effective in display numerical and visual results. Discreate Phase Model is the model of CFD with a variable stream velocity of 10 m/s, 15 m/s, 20 m/s and a solid loading of 5%, 10%, 15%, 20%, 25%. From the results, the maximum erosion rates increased with increasing sizes of particles and stream velocities. However, the location of the maximum erosion rate in the elbows region was independent on those mentioned parameters.