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Gamma-ray-based measurement of concentration distribution in pipe flow of settling slurry: vertical profiles and tomographic maps
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SYSNO ASEP 0427217 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Gamma-ray-based measurement of concentration distribution in pipe flow of settling slurry: vertical profiles and tomographic maps Author(s) Krupička, Jan (UH-J) SAI, RID
Matoušek, Václav (UH-J) ORCID, SAI, RIDSource Title Journal of Hydrology and Hydromechanics. - : Ústav pro hydromechaniku AV ČR, v. v. i.. - : Ústav hydrológie SAV - ISSN 0042-790X
Roč. 62, č. 2 (2014), s. 126-132Number of pages 7 s. Publication form Print - P Language eng - English Country SK - Slovakia Keywords two-phase flow ; gamma radiometry ; computational tomography ; slurry flow experiment Subject RIV BK - Fluid Dynamics OECD category Fluids and plasma physics (including surface physics) R&D Projects GA103/09/0383 GA ČR - Czech Science Foundation (CSF) Institutional support UH-J - RVO:67985874 UT WOS 000333982600006 EID SCOPUS 84898946395 DOI https://doi.org/10.2478/johh-2014-0012 Annotation Principles of gamma-ray-based measurement are summarized and their application is demonstrated on an operation of the radiometric facility installed in the test loop for slurry flows at the Institute of Hydrodynamics. The facility is able to measure vertical profiles of chord-averaged concentrations and concentration maps in the pipe cross section. A methodology of measurement is proposed including detection and quantification of random and systematic errors. Experimental results are discussed in the light of the proposed methodology. Experimentally determined vertical profiles of concentration are presented for slurry flows of four different fractions of glass beads. The tomographic application of the radiometric device is demonstrated on a measured concentration map and a suitable image reconstruction method is tested. High reliability of measured concentration distributions is proved except for regions near the pipe wall. The radiometric method is shown to be a useful tool for measurement of concentration distribution in slurry flow through a pipe. Workplace Institute of Hydrodynamics Contact Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Year of Publishing 2014
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