STUDY ON THE CONFIGURATION EFFECT OF A VORTEX FINDER FOR A GAS-SOLID CYCLONE SEPARATOR USING EULERIAN-EULERIAN APPROACH

Granular model, a part of Eulerian-Eulerian approach is implemented to improve a gas-solid cyclone separator's performances which are largely determined by dimensions of a vortex finder. Design-Of-Experiments method analyzes the performances such as pressure loss, separation efficiency, and erosion rate of each variation model due to the change of design parameters of the vortex finder. Separation efficiencies due to the motion of solid particles are predicted according to the classical efficiency model by using the method of least square. The numerical results are validated by comparing with previously reported experimental data. The standard Stairmand design cyclone is improved judging from the reduced pressure loss by 43%, the reduced cut size by 63% and the reduced erosion rate by 2% by changing the position and the diameter of the vortex finder.