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Abstract
To determine the parameters of two-phase flows using radioisotopes, usually two detectors are used. Knowing the distance between them, the velocity of the dispersed phase is calculated based on time delay estimation. Such a measurement system requires the use of two gamma-ray sealed sources. But in some situations it is also possible to determine velocity of dispersed phase using only one scintillation probe and one gamma-ray source. However, this requires proper signal analysis and prior calibration. This may also cause larger measurement errors. On the other hand, it allows measurements in hard to reach areas where there is often no place for the second detector. Additionally, by performing a previous calibration, it is possible to determine the void fraction or concentration of the selected phase. In this work an autocorrelation function was used to analyze the signal from the scintillation detector, which allowed for the determination of air velocities in slug and plug flows with an accuracy of 8.5%. Based on the analysis of the same signal, a void fraction with error of 15% was determined.
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Authors (5)
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Marcin Zych
- AGH w Krakowie
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Robert Hanus
- Politechnika Rzeszowska
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Marek Jaszczur
- AGH w Krakowie
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Volodymyr Mosorov
- Politechnika Łódzka
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Details
- Category:
- Conference activity
- Type:
- materiały konferencyjne indeksowane w Web of Science
- Published in:
-
EPJ Web of Conferences
no. 180,
pages 1 - 5,
ISSN: 2100-014X - Title of issue:
- 12th International Conference on Experimental Fluid Mechanics (EFM) strony 1 - 5
- Language:
- English
- Publication year:
- 2018
- Bibliographic description:
- Zych M., Hanus R., Jaszczur M., Mosorov V., Świsulski D..: Radioisotope measurement of selected parameters of liquid-gas flow using single detector system, W: 12th International Conference on Experimental Fluid Mechanics (EFM), 2018, ,.
- DOI:
- Digital Object Identifier (open in new tab) 10.1051/epjconf/201817002124
- Sources of funding:
-
- Statutory activity/subsidy
- Verified by:
- Gdańsk University of Technology
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