Skip to main content
Log in

X-ray based measurements of the local solid phase content in a three-phase flow of a bubble column: statistical significance

  • Original
  • Published:
Experiments in Fluids Aims and scope Submit manuscript

Abstract

Information regarding the flow properties in bubble columns with a three-phase flow is of great interest for research into its performance, as well as for the validation of computer models. In an earlier paper, we proposed an X-ray based particle tracking velocimetry (PTV), called XPTV. This method allows not only the measurement of the velocities of both solid and fluid phases in a three-phase flow, but also the assessment of the time-averaged local solid phase content. In this paper, we are concerned with the statistical significance of the obtained measurements.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2

Similar content being viewed by others

References

  • Al-Qodah Z, Al-Hassan M (2000) Phase holdup and gas-to-liquid mass transfer coefficient in magneto stabilized GLS airlift fermenter. Chem Eng J 79:41–52

    Article  CAS  Google Scholar 

  • Dziallas H, Michele V, Hempel DC (2000) Measurement of local phase holdups in a two- and three-phase bubble column. Chem Eng Technol 23(10):877–884

    Article  CAS  Google Scholar 

  • Georgii H-O (2002) Stochastik: Einführung in die Wahrscheinlichkeitstheorie und Statistik. Walter de Gruyter, Berlin, Germany

  • Guder R (1997) Fluiddynamik von Dreiphasenströmungen in Treibstrahl-Schlaufenreaktoren. Fortschr.-Ber. VDI Reihe 3 Nr. 461. VDI-Verlag

  • Kertzscher U, Seeger A, Affeld K, Wellnhofer E (2004) Simultaneous measurement of the local liquid and the local solid velocities. In: Sommerfeld M (ed) Bubbly flows: analysis, modelling and calculation. Springer, Berlin Heidelberg New York, pp 287–94

  • Mewes D, Schmitz D (1999) Tomographic methods for the analysis of flow patterns in steady and transient flows. In: Proceedings of the 2nd international symposium on two-phase flow modelling and experimentation, Pisa, Italy, May 1999, pp 29–42

  • Parasu Veera U (2001) Gamma ray tomography design for the measurement of hold-up profiles in two-phase bubble columns. Chem Eng J 81:251–260

    Article  Google Scholar 

  • Seeger A, Kertzscher U, Affeld K, Wellnhofer E (2003) Measurement of the local velocity of the solid phase and the local solid hold-up in a three-phase flow by X-ray based particle tracking velocimetry (XPTV). Chem Eng Sci 58:1721–1729

    Google Scholar 

  • Timischl W (1996) Qualitätssicherung. Carl Hanser Verlag München, Wien, Germany, p 318

  • Wang M, Dorward A, Vlaev D, Mann R (1999) Measurements of gas–liquid mixing in a stirred vessel using electrical resistance tomography (ERT). In: Proceedings of the 1st world congress on industrial process tomography, Buxton, Greater Manchester, UK, April 1999

  • Warsito, Ohkawa M, Kawata N, Uchida S (1999) Cross-sectional distributions of gas and solid holdups in slurry bubble column Investigated by ultrasonic computed tomography. Chem Eng Sci 54:4711–4728

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to U. Kertzscher.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Kertzscher, U., Dimitroff, G., Binsteiner, M. et al. X-ray based measurements of the local solid phase content in a three-phase flow of a bubble column: statistical significance. Exp Fluids 37, 923–928 (2004). https://doi.org/10.1007/s00348-004-0894-z

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00348-004-0894-z

Keywords

Navigation