An analytical model for the fractional efficiency of a uniflow cyclone with a tangential inlet

An analytical model was developed to predict the fractional efficiency of a uniflow cyclone with a tangential inlet. The analysis showed that the separation efficiency is a function of particle Stokes number and the geometry of the cyclone body. Six sets of experiments were conducted under different conditions to validate the model. The experimental fractional efficiencies were determined by the total mass efficiency and the corresponding size distributions measured by using an offline particle sizer. Overall the experiments agreed with the modeling results well. Both model and experiments showed that the efficiency of this cyclone reached 99.5% and above when Stk > 1.0.

Graphical abstractAn analytical model was developed and validated using experiments to predict the fractional efficiency of a uniflow cyclone with a tangential inlet. The analysis showed that the separation efficiency is a function of particle Stokes number and the geometry of the cyclone body. The efficiency was found to be 99.5% and above for a particle with Stokes number greater than 1.Figure optionsDownload full-size imageDownload as PowerPoint slide