한국전산유체공학회지 (Journal of computational fluids engineering)

한국전산유체공학회 (Korean Society of Computational Fluids Engineering)
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로터 장착 건식 미분 분리기의 작동원리 규명 및 파라미터 연구 - II. CFD 해석

INVESTIGATION OF THE OPERATIONAL PRINCIPLE AND PARAMETRIC STUDY ON A DRY PASTE SEPARATOR EQUIPED WITH A ROTOR -II. CFD ANALYSIS

  • Park, S.U. (Dept. of Mechanical Engineering, Dong-A Univ.) ;
  • Kang, Y.S. (Research Institute, Kumho Machinery Co. Ltd.) ;
  • Kang, S. (Dept. of Mechanical Engineering, Dong-A Univ.) ;
  • Suh, Y.K. (Dept. of Mechanical Engineering, Dong-A Univ.)
  • 투고 : 2015.11.06
  • 심사 : 2015.12.16
  • 발행 : 2015.12.31
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초록

Construction waste mainly consists of concrete aggregates of various size. Improper handling of concrete waste would be a major environmental problem whereas its recycling would be both economically useful and environmentally friendly. Bigger concrete aggregates are crushed and converted to medium and fine particles to make them recyclable. An apparatus to separate the concrete aggregates by their size is thus needed for their effective recycling. In this work, segregation of concrete particles in air flows from a newly designed rotary separator having three stages of blades is simulated using a commercial software, ANSYS-CFX. Both 2-D and 3-D models with 360, 240 and 180 blades in each stage are considered. Fundamental mechanism of separation of particles(pase) and the effect of design parameters such as particle size, rotor speed, air flow rate etc. on the performance of the separator are investigated. Critical size of particles that can be separated by the developed separator is also presented in this work. Simulation results are overall in good agreement with data predicted from the theoretical model previously reported in the companion paper.

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참고문헌

  1. 2014, 환경부, 한국환경공단 , "전국폐기물 발생 및 처리 현황(2013년도)," pp.10-30.
  2. 2013, Ulsen, C., Kahn, H., Hawlitschek, G., Masini, E.A. and Angulo, S.C., "Separability Studies of Construction and Demolition Waste Recycled Sand," Waste Management, Vol.33, pp.656-662. https://doi.org/10.1016/j.wasman.2012.06.018
  3. 2008, Oh, J-H., Kim, M-S., Shin, H.-D. and Min J.-W., "Recent Status on the Recycling of Construction Waste and Research Trends - the Current Situation of Recycling Technology for Waste Resources in Korea(4)," (in Korean) J. Kor. Inst. Resources Recycling, Vol.17, No.2, pp.16-29.
  4. 2013, Lim, G.-H., "An Experimental Study on the Fundamental Properties and Durability of Concrete using Recycled Aggregate of Wind Separation Type," (in Korea) MS Thesis, Dept. of Architecture Engineering, Graduate School of Industry, Hanbat National University.
  5. 2012, Lee, D.-H,. "A Study of Selection Methods for Separation System of Wastes," (in Korean) M.S Thesis, Dept. of Environment Engineering, Graduate School of Industry, Seoul National University of Science and Technology.
  6. 2012, Kim, M.-R., "The Study of the Separation Efficiency of Wind Power Selector using Computational Fluid Dynamics," (in Korea) MS Thesis, Dept. of Environment Engineering, Graduate School of Industry, Sangji University.
  7. 2013, ANSYS, CFX-Solver Modelling Guide, Version 15.0.
  8. 2011, Mekhail, T.A., Aissa, W.A., Hassanein, S.A. and Hamdy, O., "CFD Simulation of Dilute Gas-Solid Flow in $90^{\circ}$ Square Bend," Energy and Power Engineering, Vol.3, pp.246-252. https://doi.org/10.4236/epe.2011.33031
  9. 2015, Park, S.U., Kang, Y.S., Kang, S. and Suh, Y.K., "Investigation of the Operational Principle and Parametric Study on a Dry Paste Separator Equipped with a Rotor - I. Theoretical Study," (in Korean) J. Comput. Fluids Eng. (submitted).