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Language: korean

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received February 9, 2006
Accepted June 8, 2006

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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투과율에 따른 백-형상의 필터 표면에서의 유동속도 및 입자궤적 수치해석

Computational Analysis of Flow Velocity and Particle Trajectory on the Surface of Bag-Shaped Filters with a Different Permeability

박석주^† 이동근¹ 이시훈

Seok Joo Park^† Dong Geun Lee¹ Si Hyun Lee

한국에너지기술연구원 청정시스템연구센터, 305-343 대전시 유성구 장동 71-2 ¹충남대학교 기계공학과, 305-764 대전시 유성구 궁동 220

Clean Energy System Research Center, Korea Institute of Energy Research, 71-2, Jang-dong, Yuseong-gu, Daejeon 305-343, Korea ¹Department of Mechanical Engineering, Chungnam National University, 220, Gung-dong, Yuseong-gu, Daejeon 305-764, Korea

sjpark@kier.re.kr

Korean Chemical Engineering Research, June 2006, 44(3), 294-299(6), NONE Epub 19 July 2006

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Abstract

백-형상 필터의 투과율에 따른 필터 표면에서의 유동속도와 입자궤적을 수치해석 하였다. 필터의 투과율이 널리 사용되는 저급의 부직포 백필터의 투과율 이하의 조건에서는, 투과율에 따른 필터 표면에서의 유동속도와 입자궤적 분포의 변화가 아주 미미하였다. 필터의 바닥면 모서리와 출구 근처를 제외한 필터 표면에서 유선들과 반경 방향 유속들이 균일하게 분포하였다. 필터 표면으로의 입자궤적은 필터의 바닥면 모서리 근처에 더 조밀하게 분포하여 그 위치에 도달하는 입자의 수가 가장 많았고, 필터의 출구 쪽으로 향함에 따라 필터 표면에 위치하는 입자의 수는 점점 감소하는 추세를 보였다.

Computational simulation was performed to analyze flow velocities and particle trajectories onto the surface of bag-shaped filters with a different permeability. When the permeability of a filter is lower than that of a low-efficient fabric bag-filter widely used, the distributions of flow velocities and particle trajectories on the filter surface were not different with decreasing the filter permeability. The distributions of streamlines and radial directional gas velocities were uniform on the filter surface except for the neighbors of the bottom edge and outlet of the filter. The particle trajectories onto filter surface were more densely distributed around the bottom edge of the filter, so that the particle number on the filter surface was maximized near the bottom edge and decreased in the direction of the filter outlet.

Keywords

Bag-shaped Filter Bag Filter Candle Filter Flow Velocity Particle Trajectory Particle Number on Filter Surface

References

Dickenson TC, Filters and Filtration Handbook, Elsevier Advanced Technology, Oxford, U.K. (1997)
Ogawa A, Separation of Particles from Air and Gases, CRC Press, Inc., Boca Raton, Florida (1984)
Park SJ, Choi KC, Kim SD, Park YO, HWAHAK KONGHAK, 39(4), 438 (2001)
Lee KS, Woo SK, Han IS, Seo DW, Park SJ, Park YO, J. Ceram. Soc. Jpn., 110(7), 656 (2002)
Park SJ, Choi HK, Park YO, Son JE, Aerosol Sci. Technol., 37(9), 685 (2003)
Park SJ, Park YO, Korean Chem. Eng. Res., 42(5), 577 (2004)
Smith DH, Ahmadi G, Aerosol Sci. Technol., 29(3), 163 (1998)
Ahmadi G, Smith DH, Aerosol Sci. Technol., 29(3), 183 (1998)
Ahmadi G, Smith DH, Aerosol Sci. Technol., 29(3), 206 (1998)
Zhang HF, Ahmadi G, Powder Technol., 116(1), 53 (2001)
Yoo KJ, Lee JY, “Study on the Economic Assessment for Particulate Control Equipments,” Yonsei Univ., Mechanical Eng. Dpt., MS thesis (1993)
FLUENT User’s Guide, Fluent Inc. (1998)
GAMBIT User’s Guide, Fluent Inc. (1998)
Batchelor GK, An Introduction to Fluid Dynamics, Cambridge Univ. Press, Cambridge, England (1967)
Fletcher CAJ, Computational Techniques for Fluid Dynamics 1, Springer-Verlag Berlin Heidelberg (1988)
Morsi SA, Alexander AJ, J. Fluid Mech., 55(2), 193 (1972)