Computational modelling of pulverised fuel burnout in tangentially fired furnaces

摘要: Two operating furnaces are completely modelled computationally to investigate incomplete fuel burnout. Combustion parameters for a range of coals obtained from laboratory data. The burnout predictions seven conditions found agree very well with the test Unburned carbon in ash hopper is also predicted accurately. This study validates computational model and shows that derived coal combustion data can be used predict full-scale furnace performance. Carbon quite sensitive flow distribution between burners. A cause low local oxygen concentrations some these tangentially fired furnaces. Particle trajectories concentrate near walls because cyclonic action swirling causing high demand.