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Use of a simultaneous PLIF-PLIF technique to overcome optical problems in concentration measurements in two-phase bubbly systems

Author

  • Jafar Sadegh Moghaddas
  • Christian Trägårdh
  • Karin Östergren

Summary, in English

An experimental technique based on double planar laser-induced fluorescence (PLIF/PLIF) using two tracers for the measurement of the local concentration of liquid phase in a two-phase system with large bubbles is presented. Fluorescence emission intensity calibration was performed to validate the use of the laser and tracer combinations at each point in the images on two CCD cameras, separately. By normalizing the fluorescence emission intensity of the first tracer with a known concentration, with the fluorescence emission of the second tracer, the optical problems related to the bubbly two-phase flow were minimized. Concentrations measured in a bubbly system are shown to be in good agreement with the true concentration values

Department/s

  • Department of Food Technology, Engineering and Nutrition

Publishing year

2002

Language

English

Pages

427-437

Publication/Series

Advances in Fluid Mechanics. AFM 2002. Fourth International Conference

Document type

Conference paper

Publisher

WIT Press

Topic

  • Food Engineering

Keywords

  • fluorescence emission intensity calibration
  • liquid phase
  • double planar laser induced fluorescence method
  • tracers
  • bubbly system
  • laser
  • bubbly two phase flow

Conference name

4th International Conference on Advances in Fluid Mechanics

Conference date

2002-05-15 - 2002-05-17

Conference place

Ghent, Belgium

Status

Published

ISBN/ISSN/Other

  • ISBN: 1-85312-910-0