Film thickness planar sensor in oil-water flow: prospective study

Riaño, Adriana Bonilla; Bannwart, Antonio Carlos; Rodriguez, Oscar Maurício Hernandez

doi:10.1108/sr-09-2014-702

Cited by 7 publications

(4 citation statements)

References 47 publications

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“…In this section are presented the results of two experimentsthe first using a conductance circuit and the second using a Figure 12 Conductance and capacitance results using electric current simulations for sensor with Geometry 5 with a resolution of 2 Â 2 mm 2 Figure 13 Capacitance results using electrostatics and electric current simulations for sensor with Geometry 5 with a resolution of 2 Â 2 mm 2 capacitance circuit (see circuit section in Bonilla et al (2015). The main purpose of these experiments is correlating the simulation results and the experimental results.…”

Section: Resultsmentioning

confidence: 99%

“…Moreover, the existing literature mainly covers the application of these techniques in a gas-liquid flow. Some film thickness measurement techniques used for the liquid-liquid flow are: photographic (Oliemans et al, 1987), conductance/capacitive sensors (Bonilla et al, 2015, or Yu et al, 2017 and capacitive wire-mesh tomography (WMT) (Velasco and Rodriguez, 2015).…”

Section: Introductionmentioning

confidence: 99%

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High spatial and temporal resolution film thickness planar sensor: comparison of geometries

Riaño

Peña

Rodriguez

et al. 2019

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Purpose The purpose of this paper is to study planar sensor geometries for the measurement of film thickness in a viscous oil–water flow. The study is relevant due to there are only a few measurement techniques for oil-water flow and these techniques involve oil with low viscosity (close to the water viscosity). Specifically, some techniques have been used in the studies of annular flow (gas–liquid and liquid–liquid flows), but applications in other flow patterns were not encountered. Design/methodology/approach Different sensor geometries were numerically simulated to compare their characteristics and choose the best to measure the water film thickness in the oil–water flow through an impedance-based technique. Finite element method was used for resolving the tridimensional electric field over each sensor. The compared characteristics were the penetration depth, the sensitivity, the minimum spatial resolution (high spatial resolution) and the quasi-linear curve. Findings The best geometry tested has a spatial resolution of 2 × 2 mm, a penetration depth of 700 µm and a quasi-linear response in the measuring range. This geometry was tested by means of conductance and capacitance static experiments. From these experiments, it could be determined that conductance and the capacitance systems are promising for measuring water film thickness in an oil–water flow. Originality/value Several measurement techniques such as micro-PIV, planar laser-induced fluorescence and planar conductive or capacitive sensors that are supposed to be adaptable to the liquid–liquid flow have been proposed recently. Micro-PIV and planar-induced fluorescence need transparent pipes and fluids. On the other hand, conductive or capacitive methods have been only applied to low viscosity fluids. In that context, this paper proposes to study a new technique for non-intrusive measurement of the liquid-liquid flow. The main goal is the validation of the new planar sensor as a reference tool for the development of instrumentation for oilfield application.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High spatial and temporal resolution film thickness planar sensor: comparison of geometries

Riaño

Peña

Rodriguez

et al. 2019

Self Cite

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“…For this kind of measurement, a capacitive technique would be more suitable as even with some amount of oil sticking to the probe surface it would still work. A paper recently published [14] describes a new planar capacitive probe that has been used for water film measurements. We have plans to compare that technique to the optical one described in the present paper.…”

Section: Introductionmentioning

confidence: 99%

Film thickness measurement in oil–water pipe flow using image processing technique

Riaño

Rodriguez

Bannwart

et al. 2015

Experimental Thermal and Fluid Science

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“…Planar capacitive sensors, whose sensors’ electrodes are placed in a coplanar plane [ 1 ], are widely applied to the measurement of various physical quantities such as humidity [ 2 , 3 ], size [ 4 , 5 ], speed [ 4 ], dielectric permittivity [ 6 ], thickness [ 6 , 7 ], rain [ 8 ], moisture content [ 9 ], and voltage [ 10 ]. In addition, methods for the detecting of material cracks and material delaminations using planar capacitive imaging techniques [ 11 ] have been developed.…”

Section: Introductionmentioning

confidence: 99%

A Novel Method for Proximity Detection of Moving Targets Using a Large-Scale Planar Capacitive Sensor System

Deng

Shen

et al. 2016

Sensors

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A novel method for proximity detection of moving targets (with high dielectric constants) using a large-scale (the size of each sensor is 31 cm × 19 cm) planar capacitive sensor system (PCSS) is proposed. The capacitive variation with distance is derived, and a pair of electrodes in a planar capacitive sensor unit (PCSU) with a spiral shape is found to have better performance on sensitivity distribution homogeneity and dynamic range than three other shapes (comb shape, rectangular shape, and circular shape). A driving excitation circuit with a Clapp oscillator is proposed, and a capacitance measuring circuit with sensitivity of 0.21 Vp−p/pF is designed. The results of static experiments and dynamic experiments demonstrate that the voltage curves of static experiments are similar to those of dynamic experiments; therefore, the static data can be used to simulate the dynamic curves. The dynamic range of proximity detection for three projectiles is up to 60 cm, and the results of the following static experiments show that the PCSU with four neighboring units has the highest sensitivity (the sensitivities of other units are at least 4% lower); when the attack angle decreases, the intensity of sensor signal increases. This proposed method leads to the design of a feasible moving target detector with simple structure and low cost, which can be applied in the interception system.

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Film thickness planar sensor in oil-water flow: prospective study

Cited by 7 publications

References 47 publications

High spatial and temporal resolution film thickness planar sensor: comparison of geometries

High spatial and temporal resolution film thickness planar sensor: comparison of geometries

Film thickness measurement in oil–water pipe flow using image processing technique

A Novel Method for Proximity Detection of Moving Targets Using a Large-Scale Planar Capacitive Sensor System

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