NUMERICAL PREDICTION OF SHORT-CUT FLOWS IN GAS-SOLID REVERSE FLOW CYCLONE SEPARATORS

Sakin A., KARAGÖZ İ.

CHEMICAL INDUSTRY & CHEMICAL ENGINEERING QUARTERLY, cilt.23, sa.4, ss.483-493, 2017 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 23 Sayı: 4
  • Basım Tarihi: 2017
  • Doi Numarası: 10.2298/ciceq161009002s
  • Dergi Adı: CHEMICAL INDUSTRY & CHEMICAL ENGINEERING QUARTERLY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.483-493
  • Anahtar Kelimeler: CFD, cut-off diameter, pressure drop, separation efficiency, swirl flow, TANGENTIAL INLET CYCLONE, COLLECTION EFFICIENCY, PRESSURE-DROP, SAMPLING CYCLONES, PERFORMANCE, CFD, VELOCITY, HYDRODYNAMICS, SIMULATIONS, DIMENSIONS
  • Bursa Uludağ Üniversitesi Adresli: Evet

Özet

The effect of operational and geometrical parameters on the short-cut flow in cyclone separators has been investigated computationally using the Reynolds stress model (RSM). The motion of solid particles in the flow field was simulated using the Eulerian-Lagrangian approach with one way discrete phase method (DPM). Eleven cyclones with different cone tip diameters, vortex finder lengths and diameters were studied and the simulation results were analyzed in terms of velocity fields, pressure drops, cut-off diameters and short-cut flows. The numerical simulation was verified with the published experimental results. The results obtained demonstrate that all three parameters, particularly, vortex finder diameter, have significant effects on the cut-off diameter (collection efficiency), the short-cut flow and the pressure drop.