Dynamic simulation of a large scale 260t/h CFB boiler based on SIMUCAD platform

In the paper, an overall dynamic mathematical model of a 260t/h circulating fluidized bed (CFB) boiler was described, which included the sub-system mathematical models of the combustion chamber, the cyclone separator and the back-feeder in the 260t/h CFB boiler. Based on the mathematical models, using the SIMUCAD platform, a simulation environment of the boiler was developed, which can simulate the real 260t/h CFB boiler and produce the real-time simulation data. On the simulation environment, the overall mathematical model was validated against field test data generated in a real 260 t/h commercial CFB boiler produced by the Dongfang boiler group. The results demonstrate that the simulation data including the bed temperature and other critical parameters agree well with the field test data.