摘要
建立了循环流化床锅炉炉膛颗粒燃烧和脱硫反应模型。该模型考虑了炉膛下部为高颗粒浓度的密相区和上部为低颗粒浓度的稀相区的特征。模拟计算给出了烟气温度、热流密度和各气体成分(O2、C2O、CO、H2O和S2O)的轴向分布。模拟计算结果的趋势是合理的。
Described in this paper is a mathematical model of large mesh size
coal particle combustion and desulfurization reaction in a circulating fluidized bed boiler
furnace. The model has taken into account such specific features as a dense phase zone
involving high particle size concentration at the furnace lower portion and a dilute phase zone
at the furnace upper portion dominated by low particle size concentration. As a result of
simulation computations obtained are the flue gas temperature, heat flux and the axial
distribution of various gas components (O 2 , C 2O, CO, H 2O and S 2O). The trend as
indicated by the results of the simulation calculation is found to be rational.
出处
《热能动力工程》
CAS
CSCD
北大核心
1999年第4期296-299,共4页
Journal of Engineering for Thermal Energy and Power
基金
清华大学煤清洁燃烧技术国家重点实验室基金
关键词
循环流化床锅炉
数值模拟
燃烧
宽筛分煤
circulating fluidized bed boiler, numerical simulation calculation, combustion