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Effect of Sparger Geometry on Gas-Volume-Fraction in Vertical Bubble-Column Flows Measured by Gamma-Densitometry Tomography (GDT).


DE2001760771

Publication Date 2000
Personal Author Shollenberger, K. A.; George, D. L.; Torczynski, J. R.
Page Count 27
Abstract Gamma-densitometry tomography (GDT) is applied to study the effect of sparger geometry on the axial development of gas-volume-fraction profiles in a vertical bubble-column flow. Tests are conducted in a cylindrical vessel with an inner diameter of 0.48 m and a height of 3 m using air for the gas phase and lightweight mineral oil (Dradeol 10) for the liquid phase. A cross sparger with interchangeable arms is used to inject gas into the column at a height of 0.33 to 0.36 diameters above the bottom of the column. The superficial gas velocity ranges from 5 to 30 cm/s, and the absolute column pressure ranges from 103 to 517 kPa. Radial distributions of gas volume fraction at eight axial locations from five different sparger geometries are presented.
Keywords
  • Spargers
  • Tomography
  • Fluid flow
  • Design
  • Slurry bubble-column reactors
Source Agency
  • Technical Information Center Oak Ridge Tennessee
Corporate Authors Sandia National Labs., Albuquerque, NM.; Department of Energy, Washington, DC.
Document Type Conference Proceedings
NTIS Issue Number 200123
Contract Number
  • AC04-94AL85000
Effect of Sparger Geometry on Gas-Volume-Fraction in Vertical Bubble-Column Flows Measured by Gamma-Densitometry Tomography (GDT).
Effect of Sparger Geometry on Gas-Volume-Fraction in Vertical Bubble-Column Flows Measured by Gamma-Densitometry Tomography (GDT).
DE2001760771

  • Spargers
  • Tomography
  • Fluid flow
  • Design
  • Slurry bubble-column reactors
  • Technical Information Center Oak Ridge Tennessee
  • AC04-94AL85000
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