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Measurements of Dispersed Phase Velocity in Two-Phase Flows in Pipelines Using Gamma-Absorption Technique and Phase of the Cross-Spectral Density Function

Author

Listed:
  • Robert Hanus

    (Faculty of Electrical and Computer Engineering, Rzeszow University of Technology, Powstancow Warszawy 12, 35-959 Rzeszow, Poland)

  • Marcin Zych

    (Faculty of Geology, Geophysics and Environmental Protection, AGH University of Science and Technology, Mickiewicza 30, 30-059 Krakow, Poland)

  • Anna Golijanek-Jędrzejczyk

    (Faculty of Electrical and Control Engineering, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland)

Abstract

This paper concerns the application of the gamma radiation absorption method in the measurements of dispersed phase velocity in two-phase flows: liquid–gas flow in a horizontal pipeline and liquid–solid particles in a vertical pipe. Radiometric sets containing two linear 241 Am gamma radiation sources and two NaI(Tl) scintillation detectors were used in the research. Due to the stochastic nature of the signals obtained from the scintillation probes, statistical methods were used for their analysis. The linear average velocity of the dispersed phase transportation was calculated using the phase of the cross-spectral density function of the signals registered by the scintillation detectors. It is shown that in the presented cases, the phase method can be more accurate than the most commonly used classical cross-correlation one.

Suggested Citation

  • Robert Hanus & Marcin Zych & Anna Golijanek-Jędrzejczyk, 2022. "Measurements of Dispersed Phase Velocity in Two-Phase Flows in Pipelines Using Gamma-Absorption Technique and Phase of the Cross-Spectral Density Function," Energies, MDPI, vol. 15(24), pages 1-11, December.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:24:p:9526-:d:1004551
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    References listed on IDEAS

    as
    1. Robert Hanus & Marcin Zych & Anna Golijanek-Jędrzejczyk, 2022. "Investigation of Liquid–Gas Flow in a Horizontal Pipeline Using Gamma-Ray Technique and Modified Cross-Correlation," Energies, MDPI, vol. 15(16), pages 1-11, August.
    2. Robert Hanus & Marcin Zych & Leszek Petryka & Dariusz Świsulski, 2014. "Time Delay Estimation in Two-Phase Flow Investigation Using the γ -Ray Attenuation Technique," Mathematical Problems in Engineering, Hindawi, vol. 2014, pages 1-10, November.
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