Air entrainment rate and holdup in the Jameson cell

Tasdemir T., Oteyaka B., Tasdemir A.

MINERALS ENGINEERING, cilt.20, sa.8, ss.761-765, 2007 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 20 Sayı: 8
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1016/j.mineng.2007.02.008
  • Dergi Adı: MINERALS ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.761-765
  • Anahtar Kelimeler: plunging jet column, Jameson cell, air entrainment, holdup, DOWNFLOW BUBBLE-COLUMNS, GAS ENTRAINMENT, LIQUID JET, FLOW CHARACTERISTICS, DOWNCOMER
  • Eskişehir Osmangazi Üniversitesi Adresli: Evet

Özet

Air entrainment rate and holdup are important and potential control parameters in plunging liquid jet bubble columns. In this study, air entrainment and holdup in laboratory Jameson cell downcomer were investigated in an air-water system. Air entrainment flow rates and holdup were quantified experimentally. The effects of various conditions in the nozzle diameter, the downcomer diameter, the free jet length, the jet velocity and the ratio of air-feed flow rate on gas holdup and air entrainment were studied. Two empirical equations were proposed to estimate gas holdup. The predictions from these equations are in good agreement with the experimental data for holdup. (c) 2007 Elsevier Ltd. All rights reserved.