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Modelling and Measurements of Film Characteristics and Gas Core of Annular Flows

Al-Yarubi, Qahtan and Lucas, Gary (2009) Modelling and Measurements of Film Characteristics and Gas Core of Annular Flows. In: What, Where, When: Multi-dimensional Advances for Industrial Process Monitoring International Symposium, Tuesday 23 - Wednesday 24 June 2009, Leeds, UK. (Unpublished)

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    Abstract

    Annular flow is one of the most common flow patterns encountered in natural gas well-bores
    and pipelines. It occurs at high gas and low to medium liquid flow rates and at all pipe
    orientations. Using a newly-designed flow loop in the University of Huddersfield, annular
    flow was established and different measurements were carried in a vertical Perspex pipe (i.d.
    = 50mm). An ultrasonic flow meter, USFM, was designed to serve the purpose of measuring
    the velocity of the gas in the core. The USFM successfully measured the gas velocity over a
    wide range of gas and water flow rates. In this study, another device that was used was a
    novel Conductance Flow Meter, CFM, for measuring the liquid film flow rate by measuring
    the film thickness and the film velocity (using the cross-correlation technique). An empirical
    relationship between the entrainment fraction and the gas superficial velocity has also been
    established. The liquid film was mathematically modeled and the film velocity profile was
    characterized. The overall results of the present work have shown a good agreement with
    Zabaras and Dukler’s work (1986) which indicates the success of the new combination of the
    measurement techniques

    Item Type: Conference or Workshop Item (Paper)
    Additional Information: Permission given "as long as it is for internal purpose of the university"
    Subjects: T Technology > TP Chemical technology
    T Technology > TJ Mechanical engineering and machinery
    T Technology > TA Engineering (General). Civil engineering (General)
    Schools: School of Computing and Engineering
    School of Computing and Engineering > High Performance Computing Research Group
    School of Computing and Engineering > Systems Engineering Research Group
    Related URLs:
    Depositing User: Sara Taylor
    Date Deposited: 06 Aug 2009 16:49
    Last Modified: 14 Sep 2011 12:03
    URI: http://eprints.hud.ac.uk/id/eprint/5371

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