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Gamma-ray-based measurement of concentration distribution in pipe flow of settling slurry: vertical profiles and tomographic maps

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, RID}
Source 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. 126-132
Number 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	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

Number of the records: 1