Numerical Simulation Of Flow Field In Wet Flue Gas Desulfurization Spray Absorber

In this thesis,systematic numerical simulations of 3D gas-droplet multiphase flow,droplets vaporization and study of field are conducted for a wet FGD absorber of desulphurization system by flue gas. It has been proved by the field study that the numerical calculating method used for gas flow is reliable. The droplet-wall collision in the absorber has been predicted by present model. Theκ—εmodel,and the particle path model are applied numerically calculate the flow and temperature fields inside the wet desulphurization absorber of power plants and the computation is based on the SIMPLEC algorithm, discrete phase model is adopted for two-phase simulation. From the conclusion horizon inlet is different from lean inlet .Lean inlet is better. The spray zone position is also important .The FGD efficiency will be increased by mounting the wall panel. This thesis will be very useful to make the design and operation of the activation reactor reasonable and effective.