Turbine flowmeter response to transitional flow regimes

Džemić, Zijad; Širok, Brane; Bizjan, Benjamin

doi:10.1016/j.flowmeasinst.2017.11.006

Cited by 28 publications

(8 citation statements)

References 9 publications

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“…Since its first invention in 1790 by Reinhard Woltmann, the turbine meter has been widely investigated; where in 1960, an equation based on angular momentum was developed to complete the theoretical model [41][42][43][44] .…”

Section: The Turbine Metermentioning

confidence: 99%

An experimental comparison of meter calibration used in a photovoltaic water pumping system installed in an arid environment

Bekraoui¹,

Yaichi²,

Mammeri³

et al. 2023

Preprint

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Energy and water are crucial for humans in all their activities. In rural areas, irrigation is a surviving key where sustainable approaches like solar water pumping systems are required to meet this demand. One of the crucial challenges in the hydraulic field is the flow rate measurement with high accuracy. The exact estimation of the water flow rate pumped using a solar photovoltaic water pumping system is essential to evaluate the system's performance. This paper presents an analytical method to study a comparative analysis of the results of the system measurement errors. The experimental data are collected from our pumping system located in Adrar city (Algeria). The performance is analyzed using the measured water flow rate data using three different meters, one ultrasonic and two turbine meters, where a turbine meter is used as a standard meter. The test was done in May 2019. Keys words: PV pumping system, meter measurement, measurement accuracy, error calibration, ultrasonic flow meter, turbine flow meter.

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Section: The Turbine Metermentioning

confidence: 99%

An experimental comparison of meter calibration used in a photovoltaic water pumping system installed in an arid environment

Bekraoui¹,

Yaichi²,

Mammeri³

et al. 2023

Preprint

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“…When the flow rate changes constantly, the measurement performance of the flowmeter will be greatly affected, such as turbine flowmeter [2][3][4][5][6] , When subjected to a time-dependent flow, the inertia of the rotor can cause the rotor speed to lag behind the steady state condition in an accelerating flow and to exceed it in a decelerating flow. The influence of a decelerating flow is greater than that of an accelerating one ，so that the mean speed can be greater than that corresponding to the mean flowrate.…”

Section: Introductionmentioning

confidence: 99%

Development of Dynamic Response Characteristics Calibration Device for Liquid Flowmeter

Zhang¹,

Liu²

2023

Proceedings of the 19th International Flow Measurement Conference 2022 on Flow Measurement - FLOMEKO 2022

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In order to study the dynamic response characteristics of liquid flowmeter, a dynamic flow device based on superposition principle is established. The device generates the main flow through the screw pump; The positive step or negative step flow component is generated by opening or closing the high-speed solenoid valve; and the Sinusoidal pulsating flow component is formed by the sinusoidal mechanism. The real step flow or pulsating flow can be formed by superimposing the step flow component or pulsating flow component on the main flow. The system is equipped with a weighing system to measure the average flow. The test shows that the step flow component can change from 4L/min to 20 L/min, and the uncertainty of step amplitude is 5% (k=2); The frequency of pulsating flow can change from 5Hz to 50Hz, the amplitude can change from 5L/min to 20L/min, and the uncertainty of instantaneous flow is 0.5% (k=2). The device can be used to calibrate and evaluate the time constant, frequency response characteristics and mean flow error of flowmeter, and is expected to improve the accuracy of unsteady flow measurement.

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“…How to accurately measure liquid flow has become one of the issues that people need to pay close attention to in the process of production and life [ 2 , 3 , 4 , 5 ]. Liquid-measuring instruments mainly include electromagnetic flowmeters [ 6 ], turbine flowmeters [ 7 ], vortex flowmeters [ 8 ] and ultrasonic flowmeters [ 9 ]. Compared with other types of flowmeters, ultrasonic flowmeters have the advantages of easy installation, a simple working principle, strong adaptability to pipe diameter, high measurement accuracy and fast response speed.…”

Section: Introductionmentioning

confidence: 99%

Design and Implementation of an Ultrasonic Flowmeter Based on the Cross-Correlation Method

Rui

Wang

Sun

et al. 2022

Sensors

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Ultrasonic flowmeters play an important role in industrial production, aerospace and other fields. In this paper, a high-precision ultrasonic flowmeter based on the cross-correlation method is designed, and the commercial finite element software COMSOL Multiphysics 5.6 is used to simulate the propagation process of ultrasonic waves during flow measurement, and the implementation process of the cross-correlation algorithm is simulated by Python language. The flowmeter adopts the cross-correlation algorithm to improve the measurement accuracy of ultrasonic time of flight and adopts the method of combining FPGA and an embedded microprocessor to improve operation efficiency. In order to verify the performance of the flowmeter, we tested the flowmeter on the National Institute of Metrology and the self-built test platform, using the still water dragging method, the dynamic volume method and the field comparison method, respectively. The results show that the flowmeter has the ability to test the flow under the condition of high flow velocity (26 m/s) and a pipe diameter in the range of DN6~DN1600, that the absolute value of the relative indication error does not exceed 0.815% and that the repeatability does not exceed 0.150%. The designed ultrasonic flowmeter has high measurement accuracy, good repeatability, strong stability and a wide application range.

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Turbine flowmeter response to transitional flow regimes

Cited by 28 publications

References 9 publications

An experimental comparison of meter calibration used in a photovoltaic water pumping system installed in an arid environment

An experimental comparison of meter calibration used in a photovoltaic water pumping system installed in an arid environment

Development of Dynamic Response Characteristics Calibration Device for Liquid Flowmeter

Design and Implementation of an Ultrasonic Flowmeter Based on the Cross-Correlation Method

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