Author(s): Bharath Raj Reddy Dere , Divya Sree Amerla , Mahesh Babu , Rajiv Rao
Published in: International Journal of Engineering Research & Technology
License: This work is licensed under a Creative Commons Attribution 4.0 International License.
Volume/Issue: Vol. 3 - Issue 8 (August - 2014)
The gas-solids cyclone separator is industrial equipment that has been widely used. Due to its industrial relevance, a large number of computational studies have been reported in the literature aimed at understanding and predicting the performance of cyclones in terms of pressure and velocity variation. One of the approaches is to simulate the gas-particle flow field in a cyclone by computational fluid dynamics (CFD). The cyclone performance parameters are governed by many operational parameters (e.g., the gas flow rate and temperature) and geometrical parameters. This study focuses only on the effect of the geometrical parameters on the flow field pattern and performance of the tangential inlet cyclone separators using, CFD approach. The objective of this study is three-fold. First, to study the optimized stairmand’s design by understanding the pressure and velocity variations. Second, to study the performance of a cyclone separator by varying its geometrical parameters. Third, to study the performance of a cyclone separator by varying its flow temperatures. Finally to study the performance of a cyclone separator with collector and compare to that without collector. Four geometrical factors have significant effects on the cyclone performance viz., the inlet width, the inlet height and the cyclone total height. There are strong interactions between the effect of inlet dimensions and the vortex finder diameter on the cyclone performance. In this study, inlet geometry, cone- tip diameter, cone height is taken for analysis. The modeling of the cyclonic flow by computational fluid dynamics (CFD) simulation has been reported. The effect of the cone tip-diameter, cone height and inlet geometry in the flow field and performance of cyclone separators was investigated because of the discrepancies and uncertainties in the literature about its influence. The flow field pattern has been simulated and analyzed with the aid of velocity components and static pressure contour plots. The CFD model was used to predict the pressure and velocity variations of cyclone geometries based on Stairmand’s high efficiency design.
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