Characterization of alginate beads formed by a two fluid annular atomizer

  • Horngtwu Su
  • Rakesh Bajpai
  • George W. Preckshot
Session 3 Bioengineering research


A two fluid atomizer for the formation of small alginate beads has been described. It produces beads of narrow size distribution, with mean diameters in the range of 50–500 μm. The design of the nozzle allows for quick disassembly for easy cleaning and sterile operation. Empirical correlations for the mean size distributions are also provided.

Index Entries

Alginate beads atomizer size distribution injection nozzle 



average diameter of beads, µm


external diameter of needle, µm


consistency index of solution,


length of the nozzle, cm


flow index of solution, dimensionless

Δ p

pressure drop across the nozzle,


internal radius of the nozzle, cm


liquid flow rate, cm3/s (cm3/h when so stated)


gas velocity around the nozzle at 20°C and 1 atm, m/min


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Copyright information

© Humana Press Inc. 1989

Authors and Affiliations

  • Horngtwu Su
    • 1
  • Rakesh Bajpai
    • 1
  • George W. Preckshot
    • 1
  1. 1.Department of Chemical EngineeringUniversity of Missouri-ColumbiaColumbia

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