On the Proper Use of Char Reaction Kinetic Model in CFD Code for Oxy-PC Combustion

순산소 미분탄 연소 CFD 연구에 사용되는 촤 반응속도 모델의 적절한 사용에 대한 연구

Many computational fluid dynamic (CFD) simulations have treated the coal kinetics poorly due to large physical domain sizes and high computational complexity, particularly for the recent oxy-coal boilers. Furthermore, some modelers' lack of understanding of the kinetic rate model seems to worsen the simulation accuracy. This study is to suggest the importance of proper use of single-film global kinetic model generally used in CFD code to describe the oxy-fuel combustion of coal char through simple char burnout calculation.