The effect of cyclone inlet dimensions on the flow pattern and performance

Abstract

a b s t r a c tThe effect of the cyclone inlet dimensions on the performance and flow field pattern has been investigated computationally using the Reynolds stress turbulence model (RSM) for five cyclone separators. The results show that, the maximum tangential velocity in the cyclone decreases with increasing the cyclone inlet dimensions. No acceleration occurs in the cyclone space (the maximum tangential velocity is nearly constant throughout the cyclone). Increasing the cyclone inlet dimensions decreases the pressure drop. The cyclone cut-off diameter increases with increasing cyclone inlet dimension (consequently, the cyclone overall efficiency decreases due to weakness of the vortex strength). The effect of changing the inlet width is more significant than the inlet height especially for the cut-off diameter. The optimum ratio of inlet width to inlet height b/a is from 0.5 to 0.7. Ó

Effects of the inlet angle on the flow pattern and pressure drop of a cyclone with helical-roof inlet

“…US 325521) was granted to John M. Finch of the United States back in 1885 and assigned to the Knickerbocker Company (Hoffmann and Stein, 2008). In Europe the first exemplify, Elsayed and Lacor (2011a) showed that, increasing the inlet dimensions decreases the maximum tangential velocity in the cyclone and pressure drop and increases the cyclone cut-off diameter. They found that the effect of changing the inlet width is more significant than the inlet height especially for the cut-off diameter and the optimum ratio of inlet width b to inlet height a is somewhere between 0.5 and 0.7.…”

Study and Application of a Cyclone for Removing Amine Droplets from Recycled Hydrogen in a Hydrogenation Unit

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