Experimental and numerical study of a gas cyclone with a central filter |
| |
Affiliation: | 1. Department of Environmental Engineering, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey;2. Department of Chemical Engineering, Ilam University, Ilam 69315-516, Iran;3. Department of Mechanical and Aeronautical Engineering, Clarkson University, Potsdam, NY 13699-5725, USA;4. Mechanical Power Engineering Department, Faculty of Engineering at El-Mattaria, Helwan University, Masaken El-Helmia P.O., Cairo 11718, Egypt;5. Mechanical Engineering Department, College of Engineering and Technology-Smart Village Campus, Arab Academy for Science, Technology and Maritime Transport (AASTMT), P.O. Box 12676, Giza, Egypt |
| |
Abstract: | This paper studies a novel gas cyclone with a cylindrical filter face installed in the center from the vortex finder to the bottom hopper. The experimental results show that this composite cyclone has a higher collection efficiency and a lower pressure drop than the original cyclone. The mechanisms for the improvement are analyzed by both physical experiments and numerical simulations. By measuring dust samples collected at different places it is revealed that the center filter can prevent fine particles from entering the inner vortex and escaping, which accounts for the increase of the collection efficiency. In addition, the flow field of the composite cyclone is simulated by computational fluid dynamics and compared with that of the original cyclone. The analysis shows that with the filter layer installed, the swirling flow disappears in the vortex finder, which decreases the kinetic energy dissipation and hence lowers the pressure drop. |
| |
Keywords: | Cyclone Filtration Porous media model Collection efficiency Pressure drop |
本文献已被 ScienceDirect 等数据库收录! |
|