|
چکیده
|
This study focuses on investigating the impact of the inlet angle on flow patterns and performance in square gas cyclones using Computational Fluid Dynamics (CFD). Gas cyclones are commonly used in various industries to remove solid particles of different sizes and densities from gas streams. The present CFD model employed Reynolds Stress Modeling (RSM) to simulate the continuous phase and assess airflow behavior within square gas cyclones. The collection efficiency, which measures the ability of the cyclone to separate solid particles from the gas stream, was evaluated for different inlet angles under the assumption of one-way coupling. The results of the study indicated that the best inlet angle for the gas cyclone is 60 degrees, surpassing the performance of the other tested angles. Additionally, an inlet angle of 30 degrees resulted in a lower pressure drop compared to other cases. The study also found that the minimum and maximum turbulence intensities occurred at the inlet and the inner vortex finder, respectively. Furthermore, increasing the inlet velocity was found to enhance the collection efficiency, with the best performance achieved at a tangential inlet angle of 60 degrees, exhibiting the highest-grade efficiency compared to other angles. In summary, this study provides valuable insights into the impact of inlet angle on flow patterns, pressure drop, turbulence intensity, and collection efficiency in square gas cyclones, utilizing computational modeling techniques.
|