Gas–Liquid Flow Rate Measurement Using a Twin-Plane Capacitive Sensor and a Venturi Meter

Wrasse, Aluísio do Nascimento; Bertoldi, Dalton; Santos, Eduardo Nunes dos; Morales, Rigoberto E. M.; Silva, Marco J. da

doi:10.1109/access.2019.2942772

Cited by 29 publications

(4 citation statements)

References 25 publications

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“…The main advantage of using this sensor is the ability to divide the region of interest into further sub-regions for fast measurement of phase distribution. The gas void fraction in the sub-regions is calculated as described in [17]:…”

Section: Methodology a Twin-plane Capacitive Sensormentioning

confidence: 99%

Multichannel Capacitive Imaging of Gas Vortex in Swirling Two-Phase Flows Using Parametric Reconstruction

et al. 2020

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Swirl-based inline phase separation is a promising approach in the process industry with potential application in oil and gas separation in petroleum industry. To increase the efficiency of the separation, the process may be controlled. In this direction, the position and the diameter of the gas vortex are two parameters that can be used in the control loop, provided that they can be non-intrusively estimated. This article presents a capacitive sensor-based imaging method to extract these geometrical parameters. The proposed method consists in obtaining high-temporal resolution capacitance measurements at the pipe boundary of a test rig, which in turn are used in a reconstruction and extracting the targeted parameters of the gas vortex. The calculated parameters are then used to visually present the swirling flow. The measurement system was evaluated quantitatively by performing experiments with different phantoms of known diameters and positions in the sensing area. Dynamic measurements were also performed in a test rig for liquid-gas swirling flow. The capacitive imaging system is capable of detecting characteristics of the flow for a wide range of gas and liquid flow rates. A qualitative analysis was also carried out by comparing time series of the capacitive images with high-speed camera recording. The geometrical parameters obtained by the proposed approach presents a good agreement with the real data, with a root mean square deviation of 0.76mm for diameter and 0.88mm for vortex position. It can be utilized in future work as an alternative or complementary input for the controlled inline liquid-gas separation system. INDEX TERMS Swirling two-phase flows, capacitive sensor, grid search, parameter extraction.

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Section: Methodology a Twin-plane Capacitive Sensormentioning

confidence: 99%

Multichannel Capacitive Imaging of Gas Vortex in Swirling Two-Phase Flows Using Parametric Reconstruction

et al. 2020

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“…7) is a tube of variable cross-section (the measurement principle is based on pressure drop). [30][31][32] In the simple case of uid motion, the pressure drop is due to Bernoulli's law.…”

Section: Flow Metersmentioning

confidence: 99%

Flow measurement for CCUS applications

Zhdaneev,

Zaitsev

2023

Sustainable Energy Fuels

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“…We utilized the Venturi and Bernoulli effects to develop a method for improving the conventional jet fan. The Venturi effect refers to a phenomenon where the velocity of a fluid increases as it passes through a narrower section of a pipe while the pressure relatively decreases [22]. Fig.…”

Section: B Concept Of Bernoulli's Principlementioning

confidence: 99%

Application of the Bernoulli Effect for Improving Smoke Exhaust Efficiency in Tunnel Fires

Hong,

Yun,

Cho

2023

IEEE Access

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In South Korea, where mountainous terrain accounts for a significant proportion of the country, tunnels are essential for reaching destinations via the shortest possible route. Tunnels are high-traffic areas with only two exits, making them vulnerable to large-scale disasters in the event of a fire. However, existing longitudinal-flow-type exhaust systems (jet fans) are insufficient for effective smoke exhaust during a tunnel fire. Herein, a new ventilation system is proposed that uses a device with nozzles for expelling high-speed winds to generate a more robust ventilation flow at a tunnel entrance. A computational fluid dynamics (CFD) analysis showed that a jet fan system had a wind speed of 1.52 m/s at the tunnel exit. This system removed a total of 37,053.9 kg of air in 600 s. By contrast, the proposed Bernoulli ventilation system had a wind speed of 1.85 m/s at the tunnel exit and removed 53,308.4 kg air in 600 s. The simulation results from a scaleddown model of the tunnel safety testing facility were compared with the CFD analysis results. The ratio of the wind speeds between the tunnel entrance and exit was 2.7:1, exhibiting a similar trend. In conclusion, this study experimentally verified a CFD analysis of a Bernoulli ventilation system and provided a direction for improving longitudinal-flow-type exhaust systems. The results can be a foundational resource for government agencies (such as the Road Traffic Authority) in improving current ventilation systems.

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Gas–Liquid Flow Rate Measurement Using a Twin-Plane Capacitive Sensor and a Venturi Meter

Cited by 29 publications

References 25 publications

Multichannel Capacitive Imaging of Gas Vortex in Swirling Two-Phase Flows Using Parametric Reconstruction

Multichannel Capacitive Imaging of Gas Vortex in Swirling Two-Phase Flows Using Parametric Reconstruction

Flow measurement for CCUS applications

Application of the Bernoulli Effect for Improving Smoke Exhaust Efficiency in Tunnel Fires

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