Title :
Numerical Modeling of Gas Flow in a 48t/h Biomass-fired Boiler
Author :
Zhao, Fangfang ; Dong, Changqing ; Zhang, Junjiao ; Yang, Yongping ; Liu, Wenyi
Author_Institution :
Nat. Eng. Lab. for Biomass Power Generation Equip., North China Electr. Power Univ., Beijing, China
Abstract :
A numerical model of the flow field of a 48t/h grate-fired boiler was presented in this paper. The air distributions in the furnace under different air supply ratio were considered in order to get the optimum air ratio. The three-dimensional Reynolds averaged Nervier-stokes equation with the Standard k-epsilon Model was solved. The result showed that the airflow ratio played a significant role on the air distribution of the furnace and the optimum airflow ratio of RPA: RSA: RIA = 4:4:2.
Keywords :
Navier-Stokes equations; boilers; furnaces; 3D Reynolds averaged Nervier-Stokes equation; 48t/h biomass-fired boiler; 48t/h grate-fired boiler; Standard k-epsilon model; air distributions; furnace; gas flow; numerical modeling; Biomass; Boilers; Combustion; Equations; Fluid flow; Fuels; Furnaces; Numerical models; Power generation; Thermal pollution;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4812-8
Electronic_ISBN :
978-1-4244-4813-5
DOI :
10.1109/APPEEC.2010.5448747
