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Abstract
This study uses the CFD technique to investigate the influence of a twisted inverted hybrid solid cone (TIHSC) placed at the gas cyclone dustbin on the separator performance. This new design improves the stability and reduces the length of the vortex finder, resulting in a stronger swirl in the cyclone with a higher tangential velocity. The study showed that an increase in the height of the TIHSC increases the maximum tangential velocity up to 2.9 times the inlet velocity. Overall, using TIHSC leads to a significant increase in particle separation efficiency compared to the conventional cyclone. In addition, with an increase in the height of TIHSC, the pressure drop significantly decreases while the separation efficiency increases. For the optimized model, the particle cut size improves from 0.97 to 0.85 µm at 50% separation and from 6.2 to 4.7 µm at 100% separation, while the pressure drop is reduced by 12.7%.
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