Experimental and numerical investigation of particle erosion caused by pulverised fuel in channels and pipework of coal-fired power plant

A small test facility for investigation of particle–wall impact, especially designed for use of pulverised fuel, will be presented. With this experimental setup, the coefficients of restitution and friction for impact of coal particles onto a steel wall and the erosion effects have been measured. Based on this experimental data, a numerical simulation of transport of pulverised fuel in a complex splitting device, a so called bifurcator with riffle box, has been carried out. The numerical approach together with the simulation results will be presented for this application to numerical erosion prediction for devices of coal-fired power plants.