원심 오일필터 유동 해석을 통한 필터링 효율 분석
Numerical Analysis of Fluid Flow and Filtering Efficiency in Centrifugal Oil Filter
2
조회
0
다운로드
5
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0
참고문헌
키워드
초록
In centrifugal oil filters particles are forced to move toward the filter casing wall by centrifugal force in the rotating oil flow and the particles are trapped and removed on the filter paper installed at the wall. In the present study, flow field of oil and particle motion in a centrifugal oil filter has been numerically calculated in order to estimate the filtering efficiency for various operating conditions. Fluent code was used for the numerical calculations. Uncoupling the oil flow and the particle motion and the use of particle tracking trajectory enabled the estimation of filtering efficiency for various particle sizes, particle density and the filter rotational speed. Higher filtering efficiency was observed for heavier and larger particles as well as higher filter rotational speed. For the typical case of the particle density of 6000 kg/m3 and the particle size of 10 μm at 3500 RPM, the calculated filtering efficiency per passage was 0.31.
Abstract
In centrifugal oil filters particles are forced to move toward the filter casing wall by centrifugal force in the rotating oil flow and the particles are trapped and removed on the filter paper installed at the wall. In the present study, flow field of oil and particle motion in a centrifugal oil filter has been numerically calculated in order to estimate the filtering efficiency for various operating conditions. Fluent code was used for the numerical calculations. Uncoupling the oil flow and the particle motion and the use of particle tracking trajectory enabled the estimation of filtering efficiency for various particle sizes, particle density and the filter rotational speed. Higher filtering efficiency was observed for heavier and larger particles as well as higher filter rotational speed. For the typical case of the particle density of 6000 kg/m3 and the particle size of 10 μm at 3500 RPM, the calculated filtering efficiency per passage was 0.31.
참고문헌 (5)
- W.S. Robertson, "Lubrication in Practice" (1984), Marcel Dekker
- "FLUENT 5 User's Guide" (1998), Fluent Inc
- S.A. Morsi, "An Investigation of Particle Trajectories in Two-Phase Flow Systems", J. Fluid Mechanics, 55(2), pp.193~208 (1972)
- F.M. White, "Fluid Mechanics" (1979), McGraw-Hill
- F.P. Incropera, "Introduction to Heat Transfer" (1996), John Wiley & Sons