Development of a measurement and reconstruction system for determining the phase distribution in a two-phase flow vertical tube using Electrical Impedance Tomography

• Autorzy: Gatkowski M. , Buchner T. , Niewiński G. , Mazgaj P.
• Języki publikacji: EN

Abstrakty

EN

This paper is based on experience gained during six months of work on Electrical Impedance Tomography (EIT) at the Areva NP test facility in Erlangen, Germany. The aim of this work was to build an EIT system capable of providing fairly accurate imaging of the resistivity field in a vertical pipe with two-phase flow. The described system will be used to analyze two-phase flow in the PKL Integral Test Facility. EIT is an imaging method in which electrical current is injected through electrodes into a volume of interest and the potential distribution obtained is measured by surface electrodes. Using these measurements an image of the electrical conductivity/resistivity can be reconstructed in the volume of interest using numerical techniques. The reconstruction is diffcult because the mathematical problem is ill-posed and non-linear, which implicates high computational intensiveness.

Słowa kluczowe

EN

electrical impedance tomography; two-phase flow; phase distribution measurement; nuclear I&C

PL

tomografia impedancyjna; przepływ dwufazowy; pomiar rozkładu faz

• Wydawca: Institute of Heat Engineering, Warsaw University of Technology
• Czasopismo: Journal of Power Technologies
• Rocznik: 2014
• Tom: Vol. 94, nr 5
• Strony: 77--84
• Opis fizyczny: Bibliogr. 4 poz., rys., wykr.

Twórcy

autor

Gatkowski M.

• Institute of Heat Engineering, Warsaw University of Technology, 21 / 25 Nowowiejska Street, 00-665 Warsaw, Poland

autor

Buchner T.

• Avera NP GmbH, Erlangen, Germany

autor

Niewiński G.

• Institute of Heat Engineering, Warsaw University of Technology, 21 / 25 Nowowiejska Street, 00-665 Warsaw, Poland

autor

Mazgaj P.

• Institute of Heat Engineering, Warsaw University of Technology, 21 / 25 Nowowiejska Street, 00-665 Warsaw, Poland

Bibliografia

• [1] M. Wang, Impedance mapping of particulate multiphase flows, Flow Measurement and Instrumentation 16 (2–3) (2005) 183–189.
• [2] N. Polydorides, Image reconstruction algorithms for softfield tomography, Ph.D. thesis, University of Manchester (2002).
• [3] A. Adler, W. R. B. Lionheart, Uses and abuses of eidors: An extensible software base for eit, Physiol. Meas. 27 (2006) 25–42.
• [4] J. Han, X. Zhou, H. Liu, Ab initio simulation on the mechanism of proton transport in water, Journal of Power Sources 161 (2) (2006) 1420–1427.