A major problem for pulverized coal combustion is emissions such as CO2, CO, and NOx. In the oxy-fuel combustion method, a CO2─H2O─O2─N2 mixture is used for the pulverized coal combustion. In oxy-fuel combustion systems, fuel is combusted in pure oxygen rather than air. Thus, the oxy-fuel combustion process produces low CO and NOx emissions while air is not suitable for combustion in the oxy-fuel process. In this study, the oxy-fuel combustion method has been investigated for different fuel (pulverized coal) mass flow rates and different mixture recycle rates in terms of O2%/CO2%/H2O%, N2% in a lab-scale furnace. The oxy-fuel combustion method has also been investigated for different mixture rates burned of pulverized coal in the lab-scale furnace. In this analysis, the effect of different recirculated flue gas (FG) mixture rates, in terms of CO2, H2O, and O2 mass/molar fractions, on the flame temperature and CO2/NOx emissions was investigated. Numerical analyses using computational fluid dynamics...