Numerical studies of the oxygen and air combustion performance in a Corner-type coal fired boiler

Three dimensional numerical analysis of the oxygen and air were performed to investigate the combustion characteristics in a Corner-type pulverized coal boiler. With the actual operation data of the power plant, the distribution of velocity, gas temperature, O², CO₂, H₂O, N₂ as well as the particle tracking in the boiler were investigated. The predicted values at the outlet of furnace for the gas temperature and major species concentrations gave a good agreement with the designed values. The present analysis on combustion characteristics in a boiler would provide the useful information for the stable boiler operation and in trouble shooting boiler problem.