Determination of the effective thickness of an open cell foam filter using numerical simulation

International Conference on Mechanical Engineering, Automation and Control Systems 2018

Soloveva, O.V.^1 ; Solovev, S.A.^1 ; Yafizov, R.R.^1 ; Khusainov, R.R.^1

Institute of Heat Power Engineering, Kazan State Power Engineering University, 51, Krasnoselskaja Street, Kazan

420066, Russia^1

关键词: Cell diameters;    Deposition efficiencies;    Effective thickness;    Open-cell foams;    Particle depositions;    Pore diameters;    Porous inserts;    Porous medium;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/560/1/012045/pdf
DOI  :  10.1088/1757-899X/560/1/012045

来源: IOP

【 摘 要 】

Numerical simulation of the aerosol flow in a tube with a porous insert (which is a filter model) of the fixed porosity of= 0.6 and with different cell diameters was performed. The method of constructing the geometry of the open cell foam material is described. Images of the trajectories of inertia and low-inertia particles inside the porous medium are presented. Figures of changes in the efficiency of particle deposition are presented for a typical filter pore diameter of d c = 4 mm, d c = 5 mm and d c = 6 mm for different thicknesses of the porous insert. It is revealed that the effective thickness of the porous insert, with which the value of the deposition efficiency of media with different pore diameters does not change, is 4 cm. Recommendations are given on the choice of filtering open cell foam materials with specified parameters.