DOI QR코드

DOI QR Code

초소형 Lapple 사이클론 집진기의 수치적 성능평가

Numerical Performance Evaluation of an Ultra-small Lapple Cyclone Separator

  • Park, Sumin (Department of Mechanical Engineering, Incheon National University) ;
  • Kwon, Jae-Sung (Department of Mechanical Engineering, Incheon National University)
  • 투고 : 2020.11.28
  • 심사 : 2020.12.20
  • 발행 : 2020.12.31

초록

The purpose of this study is to numerically evaluate the collection performance of an ultra-small Lapple cyclone separator for 1~10 ㎛ particles introduced at flow rate of 10 L/min. The numerical evaluation reveals that a static pressure drop occurs more dominantly inside of the cyclone separator than at the inlet and the vortex finder. Also a fluid flow in the cyclone separator is confirmed to have a helical structure heading upward in the center of cyclone separator and downward in the vicinity of wall. The investigation on dust collection efficiency of the Lapple cyclone separator shows that particles of 4~8 ㎛ diameters are collected at very lower efficiency than other sizes. Then, the cut-point diameter of the cyclone separator is 1.48 ㎛.

키워드

참고문헌

  1. Dirgo, J., and Leith, D., 1985, "Cyclone Collection Efficiency: Comparison of Experimental Results with Theoretical Predictions," Aerosol Science and Technology, Vol. 4(4), pp.401-415. https://doi.org/10.1080/02786828508959066
  2. Erol, H. I., Turgut, O., and Unal, R., 2019, "Experimental and Numerical Study of Stairmand Cyclone Separators: A Comparison of the Results of Small-scale and Large-scale Cyclones," Heat and Mass Transfer, Vol. 55, pp.2341-2354. https://doi.org/10.1007/s00231-019-02589-y
  3. Qian, F., and Wu, Y., 2009, "Effects of the Inlet Section Angle on the Separation Performance of a Cyclone," Chemical Engineering research and design, Vol. 87(12), pp.1567-1572. https://doi.org/10.1016/j.cherd.2009.05.001
  4. Brar, L. S., Sharma, R. P., and Elsayed, K., 2015, "The Effect of the Cyclone Length on the Performance of Stairmand High-efficiency Cyclone," Powder Technology, Vol. 286, pp.668-677. https://doi.org/10.1016/j.powtec.2015.09.003
  5. Elsayed, K., and Laco'r, C., 2011, "The Effect of Cyclone Inlet Dimensions on the Flow Pattern and Performance," Applied Mathematical Modelling, Vol. 35(4), pp.1952-1968. https://doi.org/10.1016/j.apm.2010.11.007
  6. Kim, J. C., and Lee, K. W., 1990, "Experimental Study of Particle Collection by Small Cyclone," Aerosol Science and Technology, Vol. 12, pp.1003-1015. https://doi.org/10.1080/02786829008959410
  7. Masoumeh, M., Shuran, L., Qinzhen, Z., Guanle, D., Zhen, L., and Keping, Y., 2019, "Performance Evaluation of a New Micro Gas Cyclone Using Simulation and Experimental Studies to Capture Indoor Fine Particles," Advanced Powder Technology, Vol. 30(6), pp.1151-1159. https://doi.org/10.1016/j.apt.2019.03.010
  8. Hoffmann, A. C., and Stein, L. E., 2002, Gas Cyclones and Swirl Tubes, Springer, New York, pp.45-56.