Applied Biochemistry and Biotechnology

, Volume 14, Issue 3, pp 207–219 | Cite as

Simple measuring techniques for the determination of bubble- and bulk-phase velocities in bioreactors

  • A. Lübbert
  • T. Korte
  • B. Larson
Original Articles


Ultrasound Doppler pulse velocimetry for the measurement of bubble velocities and local temperature pulse time-of-flow techniques for determining the flow velocities of the liquid phase are two complementary new measuring techniques to gain information on the fluid dynamic behavior of bioreactors. Both methods show considerable advantages over conventional techniques. They proved to provide reliable results during biotechnological cultivations. Results from runs in airlift loop bioreactors are reported.

Index Entries

Bulk-phase velocities, measurement of in bioreactors bubble-phase velocities, measurement of in bioreactors bioreactors ultrasound Doppler pulse velocimetry flow velocities fluid dynamic behavior airlift loop bioreactors 


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Copyright information

© The Humana Press Inc 1987

Authors and Affiliations

  • A. Lübbert
    • 1
  • T. Korte
    • 1
  • B. Larson
    • 1
  1. 1.Institut für Technische ChemieUniversität HannoverHannoverGermany

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