## COAL MILL MODELLING USING EVOLUTIONARY COMPUTATION

• Equation 3 represents that the flow rate of coal into coal mill is equal to the rate at which coal delivered by feeder times the feeder speed coefficientK fs, which depends on the sizes of different feeders (for a small feeder,K fs = 016 kg/mm and for a large feeder, K fs = 024 kg/mm) • Equation 4 represents that the flow rate of PF (pulverized fuel) out of mill is equal to the rate