ISSN: 0304-128X ISSN: 2233-9558
Copyright © 2024 KICHE. All rights reserved

Articles & Issues

Language
korean
Conflict of Interest
In relation to this article, we declare that there is no conflict of interest.
Publication history
Received November 11, 2003
Accepted May 13, 2004
articles 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.
Copyright © KIChE. All rights reserved.

All issues

원심력이 적용된 여과포 집진장치에서 유동장 및 입자 거동 특성

Characteristics on the Flow Field and Particle Behavior in a Bag Filter with Combining Centrifugal Force

한국에너지기술연구원 청정에너지연구부, 305-343 대전시 유성구 장동 71-2 1씨에프텍(주), 150-739 서울시 영등포구 여의도동 13-25 2충남대학교 화학공학과, 305-764 대전시 유성구 궁동 220
Cleam Energy Research Department, Korea Institute of Energy Research, 71-2, Jang-dong, Yuseong-gu, Daejeon 305-343, Korea 1CFTech Inc., 13-25, Yoido-dong, Youngdungpo-gu, Seoul 150-739, Korea 2Department of Chemical Engineering, Chungnam National University, 220, Gung-dong, Yuseong-gu, Daejeon 305-764, Korea
sdkim@kier.re.kr
Korean Chemical Engineering Research, June 2004, 42(3), 318-325(8), NONE Epub 12 July 2004

Abstract

기존의 여과포 집진장치의 하부에 접선유입 방식의 원심력 원리를 접목시킨 새로운 형태의 여과포집진장치가 개발되었고, 이에 대한 유동장 및 입자 거동 특성을 알아보기 위하여 수치모사를 실시하였다. 접선방향으로 유입된 유체는 외통과 내통 사이에서 강한 회전속도를 형성하며 하강선회하고, 부분적으로 내통벽면을 따라 상부의 외통 벽면으로 상승선회하는 것으로 나타났다. 상승기류는 여과포가 장착된 shell plate 부분에서 선회방향을 바꾸면서 중심축을 따라 하강 선회한다. 여과포의 대부분이 하강 선회 속도장에 포함되어 있으며, 여과포에서 탈진되는 입자덩어리를 호퍼로 하강시키는 중요한 역할을 하는 것으로 나타났다.
A new type bag filter that combines centrifugal force in existing bag filter system was developed, and its computational simulation was performed to examine characteristics on a flow field and particle behavior. The fluid coming in from the tangential direction forms strong vortex in the space between the inner and outer tube and the flow goes down along the hopper wall. Partially, this flow merges with the up-flow from the inner tube to the upper tube wall. The up-flow changes its direction at the shell plate where the bag filters are mounted and it starts to go down with a vortex along the central axis. Most of bag filters are located in down-flow region which this plays an important part to fall down to the hopper more easily when dust cake removed by cleaning.

References

Ogawa A, "Separation of Particles from Air and Gases," CRC Press Inc., Boca Raton, Florida (1984)
Yoo KJ, Le JY, "Study on the Economic Assessment for Particulate Control Equipments," Onsei Univ., Mechanical Eng., Dpt., MS Thesis (1993)
Gregg W, Davies GJ, "Improving Pulse-Jet Dust Collector Operation; The Effect of Gas Stream Inlet Design," The User and Fabric Filtration Equipment VI, Proceedings of an International Specialty Conference, Toronto, Ontario, 37 (1992)
Yao SJ, J. KSEE, 22(4), 639 (2000)
Fluent Inc., FLUENT/UNS Ver4.5.8 User's Manual (1998)
Yakhot V, Orszag SA, J. Scientific Comput., 1(1), 3 (1986) 
Batchelor GK, "An Introduction to Fluid Dynamics," Cambridge Univ. Press, Cambridge, England (1967)
Hinze JO, Turbeulence, McGraw-Hill, New York (1975)
Choudhury D, "Introduction to the Renormalization Roup Method and Turbulence Modeling," Fluent Inc. Technical Memorandom TM-107 (1993)
Morsi SA, Alexander AJ, J. Fluid Mech., 55, 193 (1972) 

The Korean Institute of Chemical Engineers. F5, 119, Anam-ro, Seongbuk-gu, 233 Spring Street Seoul 02856, South Korea.
Phone No. +82-2-458-3078FAX No. +82-507-804-0669E-mail : kiche@kiche.or.kr

Copyright (C) KICHE.all rights reserved.

- Korean Chemical Engineering Research 상단으로