Effects of the Hyperboloid Outlet Duct Length and Shape on the Flow Pattern and Efficiency of Cyclone Separators

In this study, the effects of hyperboloid vortex finder (VF) configurations on the performance and flow field of cyclone separators have been examined by computational fluid dynamics (CFD) simulation approach based on Reynolds Stress Model (RSM). With Fluent, the discrete Phase Model (DPM) was employed to compute efficiency and track the particle flow from the inlet surface of the cyclone. Hyperboloid VF shape greatly affects the efficiency and pressure drop within the gas cyclone. Our simulated mean tangential and axial velocity outcomes agreed well with the corresponding experimental findings, which have been used to simulate cyclones with three different hyperboloid VF configurations, namely, HV1, HV2, HV3, and HV4. For various cyclone designs, the maximum tangential velocities have been found between 1.8 and 2 times the inlet gas velocity. Contrary to the base model, the overall separator efficiency of the cyclone model HV2 is raised by 7.68%.