CFD simulation of the preheater cyclone of a cement plant and the optimization of its performance using a combination of the design of experiment and multi-gene genetic programming

The effect of vortex finder shape on separation efficiency and pressure drop in lower-stage cyclones used for clinker burning. A CFD study

“…The Reynolds Average Navier-Stokes (RANS) method and the Reynolds Stress Model (RSM) were used to simulate turbulent flow. Studies such as (Wang et al, 2006, Wasilewski et al, 2016, Pei et al, 2017, Kashani et al, 2018 provide detailed information on both RANS and RSM. The selected approach of solving was based on the statement of pressure-based pressures equations (Pressure Based Solution Method Segregated Solver).…”

“…In this case, fluid is considered as a continuous phase, whereas the dispersed phase (solid phase) is identified through the particle tracking. The description of this method can be found in studies such as (Wang et al, 2006, Wasilewski et al, 2016, Pei et al, 2017, Kashani et al, 2018. A hexagonal mesh with a varying density, depending on the area of the device, was used to discretise the computational domain.…”

“…Modern installations consist of 4-6 stages. The operation of a cyclone suspension preheater has been explained in such studies as (Wasilewski et al, 2016, Kashani et al, 2018. The structure of cyclone separators of each stage in a preheater depends on their function and temperature conditions.…”

“…Few studies address cyclones used for clinker burning (e.g. Mikulcic et al, 2014, Wasilewski et al, 2016, Mariani et al, 2017, Kashani et al, 2018, and those that do usually concern first-stage cyclone separators. This motivated the authors of this study to investigate the effect of the shape of the vortex finder on separation efficiency and pressure drop in cyclone separators within the lower stages of a suspension preheater.…”

Investigations of the flow field inside a square cyclone separator using DPIV and CFD

“…[15][16], Reynolds Stress Model (RSM) [e.g. [3][4][5][6][17][18][19][20][21] or Large-Eddy Simulation (LES) [e.g. 7,8,22,23], depending on the assumed goals and scope of the study.…”