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Volume flow rate measurement in vertical oil-in-water pipe flow using electrical impedance tomography and a local probe

Li, Hua, Wang, Mi, Wu, Ying-Xiang and Lucas, Gary (2008) Volume flow rate measurement in vertical oil-in-water pipe flow using electrical impedance tomography and a local probe. In: 11th International Conference on multiphase flow in industrial plants, 7th-10th September 2008, Palermo, Sicily.

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    Abstract

    This paper presents the use of a high performance dual-plane electrical impedance tomography (EIT) system and a local dual-sensor conductance probe to measure the
    vertical upward co-current oil-in-water pipe flows.
    Experiments were carried on a flow loop with a transparent 2.5 m long, 80 mm inner diameter test section using kerosene and tap water. The flow conditions were
    predominantly of the dispersed type with the non-slip oil volume fraction of 9.1%, 16.7% and 23.1% respectively, and with two groups of different mixture velocities. A sensitivity coefficient back-projection (SBP) algorithm was adopted to reconstruct the flow distributions from the EIT measurement data, and then the oil in-situ volume fraction was calculated based on Maxwell relationship with temperature compensation. The oil velocity distribution was obtained using a pixel to pixel cross correlation method. A local intrusive conductance probe was adopted to supply a reference measurement of oil volume fraction and velocity profiles. The oil volume fraction and velocity distributions from the two techniques were
    compared, and good agreement was found. A further calculation of the water velocity distributions and flowrates was implemented through the drift flux approach, and the results were analysed and discussed.

    Item Type: Conference or Workshop Item (Paper)
    Subjects: T Technology > T Technology (General)
    Schools: School of Computing and Engineering
    School of Computing and Engineering > Systems Engineering Research Group
    School of Computing and Engineering > High Performance Computing Research Group
    Related URLs:
    Depositing User: Gary Lucas
    Date Deposited: 27 Feb 2009 09:05
    Last Modified: 16 Dec 2010 09:29
    URI: http://eprints.hud.ac.uk/id/eprint/3399

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