Toward Water Volume Fraction Calculation in Multiphase Flows Using Electrical Capacitance Tomography Sensors

Real-time monitoring of water volume fraction in multiphase flows is an important problem for a number of industrial applications. The water phase in the multiphase flows may correspond to either the dispersed phase or the continuous phase. In the past, several low-cost and nonintrusive techniques b...

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Bibliographic Details
Published in:IEEE sensors journal 2021-03, Vol.21 (6), p.7702-7712
Main Authors: Rasel, Rafiul K., Straiton, Benjamin, Marashdeh, Qussai, Teixeira, Fernando L.
Format: Article
Language:English
Subjects:
Capacitance
capacitive sensors
Conductivity
cross-plane measurements
Dispersion
Electrical capacitance tomography
Electrodes
Industrial applications
Monitoring
Multiphase flow
Permittivity
process tomography
Real time
real time sensing
Salinity
Salinity (geophysical)
Sensors
Tomography
Water
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Summary:Real-time monitoring of water volume fraction in multiphase flows is an important problem for a number of industrial applications. The water phase in the multiphase flows may correspond to either the dispersed phase or the continuous phase. In the past, several low-cost and nonintrusive techniques based on the electrical capacitance tomography (ECT) has been developed to image and monitor in real-time multiphase flows containing water. However, such monitoring becomes increasingly challenging for high salinity levels, and no reliable ECT-based method is presently available which could work for obtaining water volume fraction in multiphase flows for all water salinity levels. In this paper, we propose a new approach based on the Hanai's formula for complex dielectric constant and taking advantage of the Maxwell-Wagner-Sillars effect to obtain, to a good approximation, water volume fractions in multiphase flows containing water as either dispersed or continuous phase.
ISSN:1530-437X
1558-1748
DOI:10.1109/JSEN.2020.3047603