Simulation of the 200 MWe Tonghae thermal power plant circulating fluidized bed combustor by using IEA-CFBC model

The 200 MWe Tonghae thermal power plant CFB boiler (2-units) is the largest boiler to fire a Korean anthracite coal for generation of electric power. The #1 unit CFB has been operated commercially since October 1998, and the #2 unit CFB, which will begin commercial operation in October 1999, is currently under construction. However, there is little operational data of the large CFB combustor firing anthracite coal, so it is necessary to predict the performance of the CFB combustor with variation of the operation conditions. Therefore, in this study, the simulation of the Tonghae CFB has been carried out to predict the performance with various nominal rates, coal particle size distribution and operating conditions. The simulation results with various loads could be fitted well to the design values at the given operation conditions. At the various operation conditions, the simulation results could explain the performance of the Tonghae CFBC well.