NON-INTRUSIVE METHOD FOR MEASURING WATER FLOW RATE IN PIPE

The transducer most widely used for vibration measurement is the piezoelectric accelerometer. This application has been explored for flow rate measurement, since some studies have verified the narrow correlation between ratio of flow and vibration. The technique consists of measure the vibration induced by the flow in the pipeline, has been considered as promising, in the sense of enabling the development of a sensor that presents advantageous characteristics such as non-intrusiveness, non-invasiveness and reduced cost. This paper shows the method of measurement of flow in pipe based on vibration caused by transit of water, without the need of flow interruption or opening of pipe for installation of water meters. Further are present experimental measurements and metrological validation in laboratory accredited for calibration of flow meters.

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Research on a novel flow rate inferential measurement method and its application in hydraulic elevators

Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science ◽

10.1177/0954406216638884 ◽

2016 ◽

Vol 231 (2) ◽

pp. 372-386 ◽

Cited By ~ 2

Author(s):

Bing Xu ◽

Pengpeng Dong ◽

Junhui Zhang ◽

Jinjin Yao

Keyword(s):

Mathematical Modeling ◽

Flow Rate ◽

Measurement Method ◽

Sensitivity Analyses ◽

Hydraulic Systems ◽

Rate Measurement ◽

Flow Rate Measurement ◽

Test Rig ◽

Flow Meters ◽

Inferential Measurement

Measuring and controlling the flow rate is a widely concerned problem in engineering fields. The direct flow rate measurement employing conventional flow meters and the indirect flow rate measurement using speed/position transducers or other particular techniques would result in inevitable pressure drop in hydraulic circuits, more energy consumption for pumping fluid, and higher cost of hydraulic systems. This paper presents a novel flow rate inferential measurement method and its application in hydraulic elevators. Mathematical modeling of the proposed method is deduced. The key component of the hydraulic elevator circuit, a two-stage proportional flow rate valve, is verified by experiments as one of the contributions of this paper. Based on the mathematical modeling and the valve validation test, the feasibility and validity of the proposed method are verified by the experiments performed on a test rig which is designed to imitate work situations of a hydraulic elevator. Moreover, sensitivity analyses of the proposed flow rate inferential measurement method are carried out to find the ways how to improve the accuracy of the proposed method. It is believed that this method can be applied in various engineering devices.

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Influence of Pipe Roughness on the Performance of Ultrasonic Meters for Flow Rate Measurement

Volume 6: Fluids and Thermal Systems; Advances for Process Industries, Parts A and B ◽

10.1115/imece2011-65210 ◽

2011 ◽

Author(s):

Alcir de Faro Orlando ◽

Ana Luisa Ferreira ◽

Jose´ Alberto Pinheiro

Keyword(s):

Reynolds Number ◽

Flow Field ◽

Flow Velocity ◽

Flow Rate ◽

Velocity Profiles ◽

Rate Measurement ◽

Flow Rate Measurement ◽

Flow Meters ◽

Field Distortion ◽

Pipe Roughness

Ultrasonic flow meters have been recently used for flow rate measurement because they are a non-intrusive device and have the capability of making diagnostics of their performance and flow field distortion between two consecutive calibrations. The available completely developed flow velocity profiles in the literature is discussed in this paper and integrated along the meter ultrasonic path to simulate its performance. It was shown that for Reynolds number up to 1,000,000 and relatively roughness values smaller than ε = 0.00012 the flow is in the hydraulically smooth regime. Also, it was shown that the ratio between the area velocity and the average path velocity (kh) decreases close to centerline and increases close to the wall, when roughness increases.

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A Comparison of the Multi-Venturi Meter to Other Low-Loss Fluid Meters

Journal of Fluids Engineering ◽

10.1115/1.3446946 ◽

1973 ◽

Vol 95 (1) ◽

pp. 142-146

Author(s):

E. D. Klomp ◽

G. Sovran

Keyword(s):

Mass Flow Rate ◽

Mass Flow ◽

Flow Rate ◽

High Signal ◽

Rate Measurement ◽

Flow Rate Measurement ◽

Low Loss ◽

Flow Meters ◽

General Mass ◽

Unique Potential

A comparison of the multi-venturi type meter with other fluid meters has been made. A multi-venturi type meter is one having two or more venturis cascaded in such a manner that the discharge plane of smaller venturis is positioned in the throat of larger venturis. Although the concept of venturi cascading dates back to around 1880, its unique potential in general mass-flow-rate measurement applications has not been exploited. The primary advantages of the multi-venturi type meter are that it generates significantly less loss than conventional venturis, particularly at high signal magnifications, and has a much broader flow range. As a result of the latter characteristic, a single multi-venturi meter could be used to replace two or three conventional flow meters in some fluid-metering applications.

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Influence of position and type of Doppler flow meters on flow-rate measurement in sewers using computational fluid dynamic

Flow Measurement and Instrumentation ◽

10.1016/j.flowmeasinst.2011.03.001 ◽

2011 ◽

Vol 22 (3) ◽

pp. 225-234 ◽

Cited By ~ 22

Author(s):

Hossein Bonakdari ◽

Ali Akbar Zinatizadeh

Keyword(s):

Flow Rate ◽

Computational Fluid Dynamic ◽

Fluid Dynamic ◽

Rate Measurement ◽

Flow Rate Measurement ◽

Flow Meters ◽

Doppler Flow

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Impact of Pitot tube calibration on the uncertainty of water flow rate measurement

Journal of Physics Conference Series ◽

10.1088/1742-6596/648/1/012005 ◽

2015 ◽

Vol 648 ◽

pp. 012005 ◽

Cited By ~ 1

Author(s):

Icaro de Oliveira Buscarini ◽

Andre Costa Barsaglini ◽

Paulo Jose Saiz Jabardo ◽

Nilson Massami Taira ◽

Gilder Nader

Keyword(s):

Water Flow ◽

Flow Rate ◽

Water Flow Rate ◽

Pitot Tube ◽

Rate Measurement ◽

Flow Rate Measurement

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A Non-Intrusive Ultrasonic Sensor System for Water Flow Rate Measurement

10.1109/sas51076.2021.9530165 ◽

2021 ◽

Author(s):

Sergey Mileiko ◽

Oktay Cetinkaya ◽

Alex Yakovlev ◽

Domenico Balsamo

Keyword(s):

Water Flow ◽

Flow Rate ◽

Water Flow Rate ◽

Ultrasonic Sensor ◽

Sensor System ◽

Rate Measurement ◽

Flow Rate Measurement

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Computational Modeling of Flow Rate Measurements Using an Orifice Flow Meter

Volume 2: Development and Applications in Computational Fluid Dynamics; Industrial and Environmental Applications of Fluid Mechanics; Fluid Measurement and Instrumentation; Cavitation and Phase Change ◽

10.1115/fedsm2018-83296 ◽

2018 ◽

Cited By ~ 1

Author(s):

YiQin Xu ◽

Daniel Coxe ◽

Yulia Peet ◽

Taewoo Lee

Keyword(s):

Measurement Uncertainty ◽

Mass Flow Rate ◽

Mass Flow ◽

Flow Rate ◽

Rate Measurement ◽

Flow Rate Measurement ◽

Flow Meters ◽

Commercial Code ◽

Orifice Flow ◽

Orifice Flow Meter

This study is concerned with understanding and improvement of mass flow rate measurement uncertainty and errors encountered at low flow rates and start-up in commercially available flow rate measurement devices, such as orifice flow meters. The flow through a typical cylindrical flange-tapped orifice flow meter is modeled computationally so the actual mass flow rate is known a-priori. Empirical predictions from the reading of “virtual” pressure sensors are compared with the actual flow rate and the measurement errors are quantified and analyzed. Commercial code ANSYS-Fluent is compared in this study to the in-house high-fidelity spectral-element solver Nek5000, so that conclusions about the applicability of a commercial code to the calculations of measurement uncertainty in the orifice flow meters can be made.

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