500 MWe급 석탄화력 보일러 내 바이오매스 혼소 특성에 대한 수치적 연구

This study investigates the co-combustion characteristics of biomass in a coal fired tangential firing boiler in a 500 MWe capacity power plant. The detailed flow, heat and reaction characteristics for different cofiring methods were evaluated using computational fluid dynamics adopting advanced sub-models for combustion of solid fuels. The cofiring of biomass having a lower calorific value led to overall decrease in the gas temperatures of the burner zone and corresponding decrease in NOx emission. The use of dedicated cases for direct cofiring of coal/biomass blends. The results suggest that biomass cofiring method can be optimized for reduced NOx emission.