For pulverized coal combustion boilers, efficiency improvement, biomass co-firing, and CCS (carbon capture and storage) are required to reduce carbon dioxide emissions. Complex phenomena regarding flow, heat transfer, and chemical reaction are occurred in the furnace of the boilers. Computational fluid and combustion dynamics simulation is necessary to develop an advanced furnace because it is useful for understanding and controlling the complex phenomena. This paper introduces the combustion related phenomena and models used for the simulation (turbulence, gas-solid two-phase flow, moisture drying, devolatilization, char combustion, gas phase combustion, NOx reaction, radiation, ash deposition, and corrosion).
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