Numerical Optimization of Cyclone Separator Geometry Using Taguchi Method
Subject Areas : Air PollutionGhodrat Ghassabi 1 , amirhossein Sharifi mobarake 2 , Mohammadreza Merdasi 3
1 - Assistance professor of Mechanical Engineering, Bozorgmehr University of Qaenat, Qaen, Iran. *(Corresponding Author)
2 - Mechanical Engineering, Bozorgmehr University of Qaenat, Qaen, Iran.
3 - Mechanical Engineering, Bozorgmehr University of Qaenat, Qaen, Iran.
Keywords: Particle separation efficiency, pressure drop, Signal to noise ratio, Turbulent flow,
Abstract :
Background and objective: The separation of particles from fluid flow has been interested for researchers due to the preservation of environmental cleanliness. One of the most commonly used particle separation equipment is a cyclone. A cyclone is a device that separates particles from the fluid flow based on their density effect and centrifugal force. The aim of this research is to optimize the geometric characteristics of the cyclone in order to increase its efficiency and reduce pressure drop. There are numerous geometric parameters in a cyclone, and examining all cases numerically or experimentally would require a significant amount of time.
Material and methodology: for this purpose, the number of case studies was reduced using the Taguchi method. Then, numerical simulation was performed using ANSYS Fluent 16 software, and the efficiency and pressure drop of the cyclone were calculated. Next, optimization was carried out using the Taguchi method and Minitab software, and the impact of variables on increasing separation efficiency and reducing pressure drop was examined.
Findings: The impact of increasing the height of the cyclone cylinder is a 75% reduction in efficiency and a 5% reduction in pressure drop. It was also observed that the effect of increasing the inlet cross-sectional area is a 75% increase in efficiency and a 20% increase in pressure drop. Also, with an increase in the height of the vortex finder, efficiency initially increases and then decreases, while pressure drop initially decreases and then increases.
Discussion and conclusion: Comparison of the results shows that the cyclone outlet diameter is the most effective parameter for increasing particle separation efficiency and reducing pressure drop. Also, result show that the height of the conical section has the least impact on particle separation efficiency, and the height of the vortex finder has the least impact on cyclone pressure drop.
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