Library Subscription: Guest
Begell Digital Portal Begell Digital Library eBooks Journals References & Proceedings Research Collections
Multiphase Science and Technology
SJR: 0.183 SNIP: 0.483 CiteScore™: 0.5

ISSN Print: 0276-1459
ISSN Online: 1943-6181

Multiphase Science and Technology

DOI: 10.1615/MultScienTechn.v21.i1-2.70
pages 81-93

VOLUME FLOW RATE MEASUREMENT IN VERTICAL OIL-IN-WATER PIPE FLOW USING ELECTRICAL IMPEDANCE TOMOGRAPHY AND A LOCAL PROBE

Hua Li
Institute of Particle Science and Engineering, University of Leeds, Leeds LS2 9JT, United Kingdom
Mi Wang
Institute of Particle Science and Engineering, University of Leeds, Leeds LS2 9JT, United Kingdom
Ying-Xiang Wu
Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China
Gary Lucas
School of Computing and Engineering, University of Huddersfield, Huddersfield HDl 3DH, United Kingdom

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 cocurrent 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 nonslip oil volume fractions of 9.1, 16.7, and 23.1%, respectively, and with two groups of different mixture velocities. A sensitivity coefficient back-projection 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 a 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 flow rates was implemented through the drift flux approach and the results were analyzed and discussed.

REFERENCES

  1. Beck, M. S. and A. Plaskowski, Cross Correlation Flowmeters: Their Design and Application.

  2. Dickin, F. J., Williams, R. A., and Beck, M. S., Determination of Composition and Motion of Multicomponent Mixtures in Process Vessels using Electrical Impedance Tomography - I. Principles and Process Engineering Applications. DOI: 10.1016/0009-2509(93)80358-W

  3. Flores, J. G., Sarica, C., Chen, T. X., and Brill, J. P., Investigation of Holdup and Pressure Drop Behavior for Oil-Water Flow in Vertical and Deviated Wells. DOI: 10.1115/1.2795016

  4. Harmathy, T. Z., Velocity of Large Drops and Bubbles in Media of Infinite and Restricted Extent. DOI: 10.1002/aic.690060222

  5. Hasan, A. R. and Kabir, C. S., A Simplified Model for Oil/Water Flow in Vertical and Deviated Wellbores. DOI: 10.2118/49163-MS

  6. Lucas, G. P., Mishra, R., and Panayotopoulos, N., Power Law Approximations to Gas Volume Fraction and Velocity Profiles in Low Void Fraction Vertical Gas-Liquid Flows. DOI: 10.1016/j.flowmeasinst.2004.06.004

  7. Maxwell, J. C., A Treatise on Electricity and Magnetism.

  8. Serizawa, A., Kataoko, I., and Michiyoshi, I., Turbulence Structure of Air-Water Bubbly Flow - I. Measuring Techniques. DOI: 10.1016/0301-9322(75)90011-7

  9. Wang, M., Mann, R., and Dickin, F. J., Electrical Resistance Tomographic Sensing Systems for Industrial Applications. DOI: 10.1080/00986449908912139

  10. Wang, M., Jones, T. F., and Williams, R. A., Visualization of Asymmetric Solids Distribution in Horizontal Swirling Flows Using Electrical Resistance Tomography. DOI: 10.1205/026387603322482095

  11. Wang, M., Ma, Y., Holliday, N., Dai, Y., Williams, R. A., and Lucas, G. P., A High-Performance EIT System.

  12. Wu, Y., Li, H., Wang, M., and Williams, R. A., Characterization of Air-Water Two-Phase Vertical Flow by Using Electrical Resistance Imaging.

  13. Zuber, N. and Findlay, J. A., Average Volumetric Concentration in Two-Phase Flow Systems.


Articles with similar content:

MEASUREMENT OF VELOCITY AND PHASE FRACTION IN DISPERSED TWO-PHASE FLOW
ICHMT DIGITAL LIBRARY ONLINE, Vol.5, 1997, issue
Geir Elseth, M. C. Melaaen, H.K. Kvandal
LOCAL VOID FRACTION AND FLUID VELOCITY MEASUREMENTS IN A CAPILLARY CHANNEL WITH A SINGLE OPTICAL PROBE
Interfacial Phenomena and Heat Transfer, Vol.5, 2017, issue 1
Paolo Di Marco, Filippo Gerbino, Sauro Filippeschi, Mauro Mameli
Hydrodynamic Structure of a Two-Phase Bubble Flow in a Horizontal Channel
Heat Transfer Research, Vol.38, 2007, issue 5
Oleg N. Kashinsky, E. V. Kaipova
PARTICLE IMAGE VELOCIMETRY, GAMMA DENSITOMETRY, AND PRESSURE MEASUREMENTS OF OIL-WATER FLOW
Multiphase Science and Technology, Vol.21, 2009, issue 1-2
W. A. S. Kumara, B. M. Halvorsen, M. C. Melaaen
Internal Phase Distribution Transition Through 90° Bends in Horizontal Configurations
International Heat Transfer Conference 12, Vol.36, 2002, issue
Gunol Kojasoy, W.L. Fu, T.W. Guo, J.H. Park