Open AccessDetermination of the particle deposition efficiency value in a granular and open cell foam filter
Author(s) -
O. V. Soloveva,
С. А. Соловьев,
R. R. Yafizov
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/709/3/033064
Subject(s) - porosity , pressure drop , materials science , filter (signal processing) , filtration (mathematics) , deposition (geology) , particle (ecology) , particle deposition , particle size , mechanics , volumetric flow rate , composite material , mathematics , chemical engineering , physics , geology , engineering , paleontology , statistics , oceanography , range (aeronautics) , sediment , electrical engineering
We constructed a model of a granular filter with spherical granules with a diameter of d c = 5 mm and a porosity of ε = 0.44, as well as two models of a highly porous cellular filter. The first model has a porosity equal to the porosity of the granular filter, and the second model has a surface area equal to the surface area of the granular filter. A numerical and experimental study of the change in pressure drop depending on the average filtration rate was carried out; the results are in a good agreement. In the case of porosity of the granular filter. In the velocity field found, the trajectories of the particles are calculated, by which the efficiency of particle deposition is determined as the ratio of the number of particles deposited in the filter to the total number started. The deposition efficiency curves are the closest for models with a same filter surface area. The surface area of the material is the determining parameter when choosing a filter.