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Journal articles on the topic 'Flowmeter'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Ben Salamah, Mohammad J., and Mehmet Savsar. "Analyzing and Detecting Drifts in a Flowmeter by Discrete Fourier Transform." Mathematical Modelling of Engineering Problems 8, no. 4 (2021): 519–26. http://dx.doi.org/10.18280/mmep.080404.

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Large flowmeters are used in many industrial facilities, including power plants, cooling-water stations for refineries, and petrochemical plants. These flowmeters are employed for various purposes, including billing. Just like all machines, flowmeters are subject to failure. Drift is a particular type of failure in which the flowmeter produces an error in measurement that would incrementally increase with time. Maintenance technicians calibrate and fix all measuring equipment, including flowmeters. Nevertheless, downsizing policies and budget cuts in most contemporary industrial facilities hav

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2

Szudarek, Maciej, Mateusz Turkowski, and Adam Piechna. "CFD Model of a Mechanical Oscillator Flowmeter." Sensors 23, no. 1 (2022): 116. http://dx.doi.org/10.3390/s23010116.

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Most of the studies on mechanical oscillator flowmeters were conducted in the ‘80s and ‘90s when computational fluid dynamics (CFD) was not a viable scientific tool in flow metrology. Still, many topics related to the application of mechanical oscillator flowmeters require further investigation. In the article, a numerical model of a mechanical oscillator flowmeter is developed with the commercial software ANSYS Fluent. The model is validated against experimental data obtained at a water calibration stand. The influence of the selected turbulence model, dynamic mesh method, as well as grid and

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3

Hou, Qing Qiang, Yong Mei Huang, Zhi Liang Zhang, and Bin Sun. "Automatic Calibration of Clamp-On Ultrasonic Flowmeter Based on Fieldbus Control System." Advanced Materials Research 301-303 (July 2011): 1730–34. http://dx.doi.org/10.4028/www.scientific.net/amr.301-303.1730.

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In practical application, some flowmeters are not allowed to be calibrated off-line periodically, thus on-line calibration is necessary to be implemented in workplace [1]. As a non-invasive flowmeter, the clamp-on ultrasonic flowmeters are widely used in on-line calibration system. As a master flowmeter, ultrasonic flowmeters must be calibrated before or during using. Based on multiple fieldbus control system, an automatic calibration system for the ultrasonic flowmeter was designed. The comparison results between ultrasonic and electromagnetic flowmeter obtained during the process of calibrat

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4

MacLeod, J. D., and W. Grabe. "Comparison of Coriolis and Turbine-Type Flowmeters for Fuel Measurement in Gas Turbine Testing." Journal of Engineering for Gas Turbines and Power 117, no. 1 (1995): 132–37. http://dx.doi.org/10.1115/1.2812761.

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The Machinery and Engine Technology (MET) Program of the National Research Council of Canada (NRCC) has established a program for the evaluation of sensors to measure gas turbine engine performance accurately. The precise measurement of fuel flow is an essential part of steady-state gas turbine performance assessment. Prompted by an international engine testing and information exchange program, and a mandate to improve all aspects of gas turbine performance evaluation, the MET Laboratory has critically examined two types of fuel flowmeters, Coriolis and turbine. The two flowmeter types are dif

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Sun, Zhiqiang. "Design and Performance of the Converging-Diverging Vortex Flowmeter." Metrology and Measurement Systems 18, no. 1 (2011): 129–36. http://dx.doi.org/10.2478/v10178-011-0012-5.

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Design and Performance of the Converging-Diverging Vortex Flowmeter The converging-diverging structure is introduced to extend the lower limit of measurement of vortex flowmeters. As a compact device, the converging-diverging vortex flowmeter is proposed and designed, and its performance is studied experimentally. It is found that, first of all, an up to 51% extension of the lower measurement limit can be realized through the converging-diverging structure, compared with conventional vortex flowmeters; second, the converging-diverging vortex flowmeter with a trapezoidal bluff body has a larger

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6

Lian, Mingming, Jin Zheng, Zhen Li, Dongkui Huang, Qingfeng Xue, and Zhaoming Zhou. "Numeerical Calculation and Test of the Influence of Environmental Vibration on Coriolis Flowmeter." Journal of Physics: Conference Series 2503, no. 1 (2023): 012080. http://dx.doi.org/10.1088/1742-6596/2503/1/012080.

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Abstract Coriolis mass flowmeters are resonant meters. In this paper, the intrinsic mode of the CMF300 model Coriolis flowmeter under fluid-structure interaction is calculated numerically, and the excitation mode and Coriolis force mode of the Coriolis mass flowmeter in the working state are analyzed. According to the results of modal analysis, the harmonic response analysis of the flowmeter was carried out, and the displacement, stress, and strain response curves of CMF300 under the action of excitation force of different frequency loads were obtained. It provides ideas for the modeling and d

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7

Ekejiuba, A.I.B., S.I. Onwukwe, and E.T. Gbaden. "Cost-Benefit Approach to Replacing Conventional Test Separators with Multiphase Flowmeters in Today's Well Performance Monitoring." European Journal of Advances in Engineering and Technology 7, no. 9 (2020): 1–4. https://doi.org/10.5281/zenodo.10667850.

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<strong>ABSTRACT</strong> In spite of advances in multiphase flowmeter technology since inception, test separators continue to hold relevance in well performance monitoring around the globe. This paper investigated the economic viability of replacing existing test separators with multiphase flowmeters in today's well performance monitoring using a cost-benefit approach for supporting management decision-making process. Data analysis using cost-benefit approach indicates that given the current procurement and installation cost for multiphase flowmeters, it is not economically viable to replace

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8

Pereguda, Arkady I. "Reliability of the RBMK-1000 coolant flow measurement system." Nuclear Energy and Technology 5, no. 1 (2019): 81–87. http://dx.doi.org/10.3897/nucet.5.34296.

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An analysis of statistical data of diagnostic measurements of two parameters determining the performance of the RBMK-1000 SHADR-8A flowmeters – the minimum value of the negative amplitude half-wave at the transistor flow measuring unit (TIBR) input and the mean-square deviation over the flowmeter ball rotation period – made it possible to develop a mathematical model of the flowmeter parametric reliability. This mathematical model is a random process, which is a superposition of two delayed renewal processes. Studying the flowmeter operational reliability model provides an exponential estimate

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9

Pereguda, Arkady I. "Reliability of the RBMK-1000 coolant flow measurement system." Nuclear Energy and Technology 5, no. (1) (2019): 81–87. https://doi.org/10.3897/nucet.5.34296.

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An analysis of statistical data of diagnostic measurements of two parameters determining the performance of the RBMK-1000 SHADR-8A flowmeters – the minimum value of the negative amplitude half-wave at the transistor flow measuring unit (TIBR) input and the mean-square deviation over the flowmeter ball rotation period – made it possible to develop a mathematical model of the flowmeter parametric reliability. This mathematical model is a random process, which is a superposition of two delayed renewal processes. Studying the flowmeter operational reliability model provides an exponential estimate

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10

Zhang, Xiaoxiao. "P‐8.5: Research on Flowmeter Signal Processing Method Based on Improved Kalman Filterust." SID Symposium Digest of Technical Papers 55, S1 (2024): 1142–44. http://dx.doi.org/10.1002/sdtp.17304.

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Flowmeter is an instrument for measuring the flow rate of fluid, which is widely used in industrial, agricultural, environmental and other fields. However, the signal of flowmeter is often affected by various noises and interferences, which reduces the measurement accuracy. In order to improve the signal quality of flowmeter, this paper proposes a flowmeter signal processing method based on adaptive Kalman filter. This method uses the advantages of Kalman filter, combined with adaptive algorithm, dynamically adjusts the process noise covariance matrix and measurement noise covariance matrix, a

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11

Hess, Alfred E. "Identifying hydraulically conductive fractures with a slow-velocity borehole flowmeter." Canadian Geotechnical Journal 23, no. 1 (1986): 69–78. http://dx.doi.org/10.1139/t86-008.

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The U.S. Geological Survey used a recently developed heat-pulse flowmeter to measure very slow borehole axial water velocities in granitic rock at a site near Lac du Bonnet, Manitoba, Canada. The flowmeter was used with other geophysical measurements to locate and identify hydraulically conducting fractures contributing to the very slow vertical water flow in the two boreholes selected for study. The heat-pulse flowmeter has no moving parts and operates on the tag–trace principle. It is an improved version of the flowmeter developed by the Water Research Centre in England in 1975. The U.S. Geo

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Wang, Gang, Wenyi Lin, Yutao Jiang, Lixin Deng, and Yi Chai. "Analysis of Factors Influencing Measurement Accuracy for High-Temperature Liquid Metal Flow Sensors in Nuclear Power." Electronics 12, no. 13 (2023): 2944. http://dx.doi.org/10.3390/electronics12132944.

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Permanent magnet metal flowmeters are implemented to monitor the flow of liquid metal coolant in a nuclear reactor, whose measurement accuracy plays a significant role to ensure the safety and normal operation of the nuclear reactor. According to a theoretical analysis of the permanent magnet metal flowmeter, several factors such as temperature, nonlinear degree, and zero potential will affect the accuracy of measuring the flow. However, for a heavy-caliber permanent magnet metal flowmeter, the influence of the magnetic Reynolds number provides obvious nonlinearity, which affects the measureme

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13

Liu, Wei Min, Ai Yun Zheng, Ping Huo, and Chun Guang Lu. "The Digital Quality Evaluation System of Elbow Flowmeter." Advanced Materials Research 317-319 (August 2011): 1132–35. http://dx.doi.org/10.4028/www.scientific.net/amr.317-319.1132.

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The quality of elbow flowmeter is important to its application accuracy. This paper described the digital quality evaluating method for elbow flowmeter which based on the analysis of elbow flowmeter’s theory, construction, working condition, and fault characteristics. In the method, we applied the concept of static quality, dynamic quality and used quality index to show the quality condition of flowmeter precisely. The fuzzy math theory, finite element analysis technology and online detection technology were used in our method. The digital quality evaluation system can get more accurate testin

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14

Tang, Jing Yuan, Jian Ming Chen, Hong Bin Ma, and Guang Yu Tang. "Numerical Analysis of Flow Field Characteristics in Three-Z-Shaped Ultrasonic Flowmeter." Applied Mechanics and Materials 226-228 (November 2012): 1829–34. http://dx.doi.org/10.4028/www.scientific.net/amm.226-228.1829.

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The flow field characteristics in U-typed bend has been extensively studied for transit time ultrasonic flowmeters designing, but for the flowmeter with three-Z-shaped round pipe there is still lack of corresponding research. This paper presents a computational fluid dynamics (CFD) approach for modeling of the three-Z-shaped ultrasonic flowmeter and studying of internal fluid field characteristics based on Reynolds stress model (RSM). The fluid velocity profile in the three ultrasound path is obtained using CFD and secondary flow in cross section also is analyzed. The simulation results show t

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15

Phan, Trung Kien, Song Wang, Yan Wang, et al. "A Self-Powered and Low Pressure Loss Gas Flowmeter Based on Fluid-Elastic Flutter Driven Triboelectric Nanogenerator." Sensors 20, no. 3 (2020): 729. http://dx.doi.org/10.3390/s20030729.

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A self-powered and low pressure loss gas flowmeter is presently proposed and developed based on a membrane’s flutter driven triboelectric nanogenerator (TENG). Such a flowmeter, herein named “TENG flowmeter”, is made of a circular pipe in which two copper electrodes are symmetrically fixed and a nonconductive, thin membrane is placed in the middle plane of the pipe. When a gas flows through the pipe at a sufficiently high speed, the membrane will continuously oscillate between the two electrodes, generating a periodically fluctuating electric voltage whose frequency can be easily measured. As

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16

Porszasz, J., T. J. Barstow, and K. Wasserman. "Evaluation of a symmetrically disposed Pitot tube flowmeter for measuring gas flow during exercise." Journal of Applied Physiology 77, no. 6 (1994): 2659–65. http://dx.doi.org/10.1152/jappl.1994.77.6.2659.

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We evaluated the effect of airflow and gas composition on the linearity of measurement of airflow by a new disposable flowmeter. The flowmeter is based on the principle of differential pressure measurement across two symmetrically disposed Pitot tubes. Nonlinearities arising from the pressure-to-airflow relationship and sensitivity to changes in gas density were linearized with appropriate software and monitoring of the gas composition. With room air used as the respired gas, the measured tidal volume from a piston pump assembly was consistently within 1–2% of the target tidal volume for each

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17

Zhu, Wei Bin, Jin Long Meng, and Zhao Qin Yin. "3-D Numerical Simulation and Analysis on V-Cone Flowmeter Based on LES Method." Applied Mechanics and Materials 88-89 (August 2011): 408–12. http://dx.doi.org/10.4028/www.scientific.net/amm.88-89.408.

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The rear pressure measurement position of V-cone flowmeter is in the complex vortex structure area after fluid around the cone. The non-uniformity of the fluid field will influence the measurement precision of V-cone flowmeter. Large eddy simulation (LES) has been used to study the V-cone flowmeter’s 3-D flow field structure with different Reynolds number in this paper. The better fluid area information can gain by this way. The results show that the values of discharge coefficient (Cd) obtained from LES are more close to the experiment data than the values obtained from k-ε model. Different t

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18

Liang, Jia Na, Guo Wei Liang, and Hua Feng Liang. "Numerical Simulation of the Double-Cones Flow-Meter on its Expansibility Factor." Advanced Materials Research 301-303 (July 2011): 847–52. http://dx.doi.org/10.4028/www.scientific.net/amr.301-303.847.

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In order to study the double-cones flowmeter’s varying mechanism of expansibility factor, the experiment on the flowmeter with certain double-cones rate of diameter for 0.4、0.5、0.6 is carried out firstly, witch compared with the result of computational simulation. They are almost the same. This ensures the correctness of simulation. Then, we get the predictive formula of expansibility factor for the double-cones flowmeter through a mass of simulation study on the flowmeter with certain rate of diameter for 0.4、0.5、0.6、0.7、0.8、0.9 using Fluent.

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19

Wang, Yu, Ruiwei Li, Lin Luo, and Lin Ruan. "Analysis of metrological characteristics of elbow flowmeter under rotating state." International Journal of Metrology and Quality Engineering 12 (2021): 24. http://dx.doi.org/10.1051/ijmqe/2021022.

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The application of elbow flowmeter in rotary equipments is beneficial to reduce the pipeline complexity. However, the intervention of centrifugal acceleration will lead to the change of metrological characteristics of elbow flowmeter. Based on the analysis of the differential pressure formation mechanism of the environmental acceleration on the elbow flowmeter, the calculation formula of the flow rate measurement with the elbow flowmeter in the rotating state is derived, and the fitting method of the discharge coefficient is put forward. The CFD method was used to analyze the internal flow fie

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20

Ren, Rui, Hongliang Wang, Xiaolei Sun, and He Quan. "Design and Implementation of an Ultrasonic Flowmeter Based on the Cross-Correlation Method." Sensors 22, no. 19 (2022): 7470. http://dx.doi.org/10.3390/s22197470.

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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

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Huang, Zhen Wei, and Jia Cheng. "Development of the Gas Flowmeter Based on Assembled Hot-Film." Applied Mechanics and Materials 241-244 (December 2012): 42–45. http://dx.doi.org/10.4028/www.scientific.net/amm.241-244.42.

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A gas flowmeter with temperature compensation is designed based on the single assembled hot-film probe. Experiments are carried out to analyze the temperature characteristics of the hot-film probe. The performance of the automatic temperature compensation units is studied. The flowmeter is tested on the Sonic Nozzle standard flowrate system for the calibration of flowmeters. The experimental results show that the precision is up to 0.6% and the ratio of the measurement range can be 60:1.

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Liu, Tie Jun, and Yin Jia Chen. "Study on the Dual-Frequency Excited Electromagnetic Flowmeter." Applied Mechanics and Materials 241-244 (December 2012): 571–75. http://dx.doi.org/10.4028/www.scientific.net/amm.241-244.571.

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A time-division dual-frequency excitation scheme was proposed as an improvement to the traditional electromagnetic flowmeters. The proposed scheme keeps the advantage of zero-point stability of the traditional design, the immunity to low frequency noise is enhanced, and the response to fast change of fluid velocity is improved. A prototype flowmeter was made based on the proposed design, experiment results show that the prototype flowmeter can measure water flow in a wide velocity range with satisfactory accuracy.

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Nguyen, Thi Huong Ly, and Suhyun Park. "Multi-Angle Liquid Flow Measurement Using Ultrasonic Linear Array Transducer." Sensors 20, no. 2 (2020): 388. http://dx.doi.org/10.3390/s20020388.

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Most ultrasonic flowmeters utilize several wedge sensors for transmission and reception. Thus, the location and alignment of the sensors are critical factors that determine the performance of the ultrasonic flowmeter. In this study, we proposed an ultrasound liquid flowmeter utilizing a 128-element linear array transducer with a transmit delay control for varying the incidence angles of ultrasound wave transmission. The performance of the flowmeter was evaluated at flow rates of 0–50 L/min in a specially designed pipe system. Flow estimation was performed with the transit-time method using cro

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Costa, Caio Henrique Veloso da, Fernando César de Cerqueira Júdice Tavares, and Maristone Gomes da Silva Júnior. "PRECISÃO DE FLUXÔMETROS DE OXIGÊNIO ANALÓGICOS E DIGITAIS: ESTUDO COMPARATIVO EM CONDIÇÕES PADRONIZADAS DE PRESSÃO." Revista ft 29, no. 147 (2025): 36–37. https://doi.org/10.69849/revistaft/ni10202506301236.

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Background: Accuracy in oxygen administration is fundamental for patient safety in hospital settings. Traditional analog flowmeters may present significant variations in their accuracy, especially at different flow levels. Objective: To compare accuracy between analog and digital flowmeters in the operational range of 1 to 15 L/min under standardized medical gas network pressure. Methods: Experimental study with ten units of each flowmeter type (analog and digital) tested at 15 flow levels (1-15 L/min) under standardized network pressure (3.5 kgf/cm²). Actual flow was measured and compared to

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Chen, Jianfeng, Kai Zhang, Leiyang Wang, and Mingyue Yang. "Design of a High Precision Ultrasonic Gas Flowmeter." Sensors 20, no. 17 (2020): 4804. http://dx.doi.org/10.3390/s20174804.

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Aiming at the problems of substantial pressure loss, small range ratio and contact measurement in traditional gas flowmeters, this paper designs a new type of data-filtering ultrasonic gas flowmeter. The flowmeter is composed of hardware circuits such as STM32F407 (ARM Cortex 32-bit microcontroller) main control chip and high-precision timing chip TDC-GP22 (time to digital converter). The software uses a new data-filtering algorithm combining Kalman filtering algorithm and arithmetic average algorithm to improve the measurement accuracy of ultrasonic gas flowmeter. Through experimental compari

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Karbowski, Krzysztof, Bartosz Kopiczak, Robert Chrzan, Jolanta Gawlik, and Joanna Szaleniec. "The influence of flowmeters on rhinomanometry results and detection of nasal airflow asymmetry." Otolaryngologia Polska 78, no. 1 (2024): 1–7. http://dx.doi.org/10.5604/01.3001.0053.4016.

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<b><br>Introduction:</b> Rhinomanometry is an otolaryngological diagnostic method used to determine airflow as a function of the pressure drop through the left and right nasal cavities. Airflow is measured using orifice flowmeters that attenuate the flow.</br> <b><br>Aim:</b> This paper describes the results of a study into the effects of flowmeter design on rhinomanometry results and detection of nasal airflow asymmetry.</br> <b><br>Material and methods:</b> Four flowmeters were examined using a 3D printed model of a human nose

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Xiong, Z. H., and Zhen Lin Li. "Computation of Turbulent Flows in Natural Gas Pipes with Different Rectifiers." Advanced Materials Research 455-456 (January 2012): 344–50. http://dx.doi.org/10.4028/www.scientific.net/amr.455-456.344.

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With the development of natural gas industry, improving the accuracy of the flowmeter systems is becoming the common concerned problem both corporations and customers. Many experiments demonstrate that the different flow field structures in pipes with diverse baffle installations have great influence on the measure accuracy of flowmeters. In order to measure the flux in pipes more accurate, the flowmeters must be installed downstream the baffles far away so that the irregular flows induced by baffles have less influence on the flowmeters. However, the installation lengths downstream baffles fo

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28

Herring, Daniel H. "Operational Principles of Flowmeters, Part 2." AM&P Technical Articles 172, no. 9 (2014): 56–58. http://dx.doi.org/10.31399/asm.amp.2014-09.p056.

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Abstract Flow measurement is an increasingly important part of quality control systems in the heat treating industry. This article covers selection basics, sizing, mass flowmeter overview, and frequently asked questions about about flowmeters.

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Polinski, J., M. Chorowski, A. Iluk, et al. "Design, measurements and calculation model validation of the orifice-type flowmeter for FAIR SIS100 Local Cryogenic System." IOP Conference Series: Materials Science and Engineering 1327, no. 1 (2025): 012172. https://doi.org/10.1088/1757-899x/1327/1/012172.

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Abstract Proper operation of the FAIR SIS100 Local Cryogenic System requires the use of 33 flow meters that must operate in various thermodynamic conditions and helium mass flow ranges. Due to space limitations and needs to operate in radiation environment, the only option is to use orifice flow meters that are characterised by relatively simple in production and compact geometry. Commercially available orifice flowmeters cannot be used due to their incompatibility with cryogenic temperatures and high vacuum conditions. Therefore, for the purposes of the project, based on the ASME MFC-14M-2003

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Perovic, S., E. H. Higham, and P. J. Unsworth. "Fault detection and flow regime identification based on analysis of signal noise from electromagnetic flowmeters." Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering 215, no. 4 (2001): 283–94. http://dx.doi.org/10.1177/095440890121500403.

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The signal conditioning and processing circuits of conventional electromagnetic flowmeters have been designed to provide an accurate average flowrate measurement signal, principally for the purpose of process control. One consequence of this is that the ‘noise’ and other low frequency components of the electrode signal are suppressed. Hitherto, the possibility that they may carry potentially useful information has been overlooked, but there are studies which show that information regarding the flow regime can be identified by spectral analysis of the higher frequency or ‘noise’ components of t

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Dinardo, Giuseppe, Laura Fabbiano, and Gaetano Vacca. "Analysis and optimization of a cone flowmeter performance by means of a numerical and experimental approach." Journal of Sensors and Sensor Systems 8, no. 2 (2019): 269–83. http://dx.doi.org/10.5194/jsss-8-269-2019.

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Abstract. Differential pressure flowmeters are commonly used in industrial applications where, however, the upstream flow conditions are usually highly disturbed, caused by the presence, in the network pipe, of elbows, valves, etc. To achieve accurate flow measurements, the use of the cone meter is recommended as the flowmeter has the property to normalize the flow both upstream and downstream. In this paper, the authors present a cone flowmeter of new geometry that allows them to obtain better performance with respect to the original one; in particular, it provides a higher discharge coeffici

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Leonov, S. A., Yu V. Mikhailovа, V. K. Sudarikov, and N. V. Terekhina. "Simulation method for the operation of magnetic flowmeters." Izmeritel`naya Tekhnika, no. 9 (November 10, 2024): 43–52. http://dx.doi.org/10.32446/0368-1025it.2024-9-43-52.

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The issues of testing magnetic flowmeters for liquid metal and studies of their metrological characteristics are considered. The existing liquid metal pouring flowmeters are unsuitable for experimental studies of error components, therefore it is necessary to use simulation methods to simulate the operation of magnetic flowmeters. The tests require the liquid metal plants or methods that allow you to examine flowmeters without plants that can reproduce the flow rate in various operating modes. By analogy with the simulation method of water flowmeters research, a simulation method for modeling

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Baker, Roger C. "Response of Bulk Flowmeters to Multiphase Flows." Proceedings of the Institution of Mechanical Engineers, Part C: Mechanical Engineering Science 205, no. 4 (1991): 217–29. http://dx.doi.org/10.1243/pime_proc_1991_205_114_02.

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This review has attempted to select the most recent references with the most useful data. It does not cover local velocity measurements or related parametric measurements. The nature of multiphase and multi-component flow is briefly considered. Data on existing flowmeter designs in two-component flow suggest that the most likely contenders for fiscal measurement precision are venturi, positive displacement, electromagnetic and correlation flowmeters. There are inadequate data so far to determine the eventual usefulness of the Coriolis mass flowmeter. Flowmeter combinations of volume and moment

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Yan, Hongchi. "Research on Flow Field Characteristics of Pipeline Flow Control Device Based on CFD." Applied and Computational Engineering 149, no. 1 (2025): 135–40. https://doi.org/10.54254/2755-2721/2025.kl22583.

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Nuclear power is crucial to the energy sector, comprising 16% of global energy. With heightened safety demands, this paper focuses on the issue of high Venturi flowmeter readings at low loads in a nuclear plant's Feedwater Flow Control (ARE) system. The ARE system's role is to regulate flow to the steam generator, maintaining water levels within set limits. Venturi flowmeters, known for their simple design and reliability, are commonly used in industrial flow measurement, including nuclear plant feedwater systems. Measurement accuracy is vital for control system performance and overall industr

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Morros González, Elly, Diana Estrada Cano, Marcela Murillo Galvis, Jos Carlos Montes Correa, Nelcy Rodríguez Malagón, and Claudia Marcela Granados Rugeles. "Evaluation of Knowledge of Oxygen Therapy and Reading of Flowmeter among the Health Workers in the Pediatric Unit of the Hospital Universitario San Ignacio, Bogotá, Colombia." Universitas Médica 59, no. 3 (2018): 1–8. http://dx.doi.org/10.11144/javeriana.umed59-3.oxig.

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Introduction: Supplemental oxygen is considered a pharmaceutical drug; therefore, it can produce adverse effects. Lack of consensus regarding the reading of oxygen flowmeters and the peripheral oxygen saturation (SpO2) goals can influence clinical and paraclinical decisions and hospital stay length. Objective: To assess knowledge on oxygen therapy, adverse effects, SpO2 goals and reading of oxygen flowmeters among personnel in the Pediatric Unit at Hospital Universitario San Ignacio, Bogotá, Colombia. Methodology: Cross-sectional study derived from convenience sampling through a self-applied s

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Ge, Liang, Hongxia Deng, Qing Wang, Ze Hu, and Junlan Li. "Study of the influence of temperature on the measurement accuracy of transit-time ultrasonic flowmeters." Sensor Review 39, no. 2 (2019): 269–76. http://dx.doi.org/10.1108/sr-01-2018-0005.

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Purpose The purpose of this study is to deal largely with the influence of temperature variation on the measurement accuracy of transit-time ultrasonic flowmeter. Design/methodology/approach The causes of measurement error due to temperature are qualitatively and quantitatively analyzed, and a mathematical model is established. The experimental data are processed and analyzed, and the temperature compensation coefficient of flow measurement is obtained. Findings The experimental results show that the flow measurement results by temperature compensation are helpful in improving the measurement

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Liu, Shuo, Fan Ding, and Chuan Ding. "A Rotor Speed Sensor of Cycloid Rotor Flowmeter." Advanced Materials Research 986-987 (July 2014): 1449–52. http://dx.doi.org/10.4028/www.scientific.net/amr.986-987.1449.

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Positive displacement flowmeters (PDFs) are highly accurate flowmeters that are relatively insensitive to the upstream velocity distribution and fluid viscosity. Rotor speed sensors are the key components of a PDF. This paper presents the structure of a non-contact rotor speed sensor which can be used in cycloid rotor flowmeter and other PDFs. The sensor outputs a square wave which contains the speed information of the rotors. The key parameters of the rotor speed sensor are analyzed in this paper and a prototype was fabricated to confirm the rotor speed sensor work well.

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Ferrari, Alessandro, and Tantan Zhang. "Benchmark between Bosch and Zeuch method–based flowmeters for the measurement of the fuel injection rate." International Journal of Engine Research 22, no. 1 (2019): 316–27. http://dx.doi.org/10.1177/1468087419827732.

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Bosch and Zeuch method–based flowmeters use the pressure rise triggered by the injection event in a different way in order to characterize the injected flow-rate time history. These typologies of measurement are the most widely applied to evaluate the injection rate of fuel injection systems. The injection rate of a Common Rail electroinjector has been measured with both Bosch and Zeuch method–based flowmeters. The objective has been to perform a benchmark on these two different flow-rate measuring principles. A slight reduction in the rising slope of the injected flow-rate, an anomalous tail

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Wang, Liman, Melva Proudlock, and Mingyao Liu. "A Simple and Effective Method to Evaluate Peak Flowmeters." Canadian Respiratory Journal 3, no. 2 (1996): 125–29. http://dx.doi.org/10.1155/1996/253063.

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OBJECTIVE:Peak flowmeters have been widely used to monitor the course of asthma. The objective of this study was to develop a simple, convenient and effective method to evaluate these devices routinely.METHODS:A rubber band-driven 3 L syringe was used to generate airflows, and a pneumotachometer was connected in series with the peak flowmeter as a standard. Waveforms were recorded and compared with maximal expiratory curves. The accuracy of peak flowmeters was analyzed by linear regression and by calculating the percentage of the difference measured by the flowmeter (F) and the pneumotachomete

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Chen, Huiyu, Yilong Qiu, Hui Wang, and Mengjie Gao. "The Influence of a Manifold Structure on the Measurement Results of a PIV Flowmeter." Processes 12, no. 1 (2024): 144. http://dx.doi.org/10.3390/pr12010144.

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The application of particle image velocimetry (PIV) technology for monitoring natural gas flow is a new method of flow measurement. Since the principle of this technology was proposed, there are still some potential issues. This article investigates the influence of a manifold structure on the measurement results of a PIV flowmeter. A comparison is performed between concentric and eccentric manifold structures, using a circular straight pipe as reference, in terms of the measurement error of the PIV flowmeter and the internal flow state of the natural gas. The results demonstrate that the mani

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Guan, Ziyi, Suijun Liu, Ying Liu, et al. "Online Monitoring of Flowmeter Anomaly in Tobacco Production Process Using Sliding Window Recursive Lasso." Processes 11, no. 5 (2023): 1519. http://dx.doi.org/10.3390/pr11051519.

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Ensuring the accuracy of flow measurement is crucial to promoting high-quality cigarette production. In order to monitor the working status of flowmeters, this paper proposes an anomaly detection method based on the sliding-window recursive Lasso (Least absolute shrinkage and selection operator), which is able to track the changes in flowmeter operating conditions by self-adapting model parameters based on observed measurements. Due to the frequent mode switch and high sampling frequency of flow data, this paper introduces the sliding-window strategy to remove the effect of outdated data and a

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Wang, Yujin, Bin Yang, Dexu Wang, and Xinze Wang. "Enhancement of CFD-based external gas straightener optimization for pipe bending." Journal of Physics: Conference Series 2996, no. 1 (2025): 012003. https://doi.org/10.1088/1742-6596/2996/1/012003.

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Abstract In this study, an optimisation strategy for an external gas straightener is proposed to address the lack of measurement accuracy of ultrasonic flowmeters under complex flow field conditions in the natural gas market. In view of the space limitation of the built-in straightener, a computational fluid dynamics (CFD) approach, combined with theoretical analysis and experimental validation, was used to monitor the performance of the flowmeter in detail under minimum and maximum flow conditions. On this basis, an external gas straightening device applicable to the bends at the front end of

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Pedro, António, Teresa Morgado, and Helena Navas. "An Uncertainties Simulation Model Applied to an Automated Laminar Flowmeter." Applied Sciences 10, no. 3 (2020): 888. http://dx.doi.org/10.3390/app10030888.

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Aircraft oxygen regulators are a normally used specialized test bench designed to perform tests to the regulators during its work conditions. The tests are performed placing the regulator in the barometric chamber, where low pressure conditions are forced to simulate altitude conditions and then a flow is forced on the output of the regulator to simulate the inhalation of the user. The relevant test flows are measured by laminar flowmeters. These flowmeters are meant to measure the flowrate at pressures correspondent to altitudes between sea level altitude and fifty thousand feet. In this work

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Romanov, V. A., and P. A. Taranenko. "The Dissipative Properties Assessment of the Oscillatory System of a Serial Sample of the Coriolis Flowmeter." PNRPU Mechanics Bulletin, no. 2 (December 15, 2020): 134–44. http://dx.doi.org/10.15593/perm.mech/2020.2.11.

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The quantitative estimates of the flow rate (or density) of the flowing fluid obtained by the measurements using the industrial Coriolis flowmeters are made by using the laboratory experiments previously performed with the exemplary sensor. In this case we face two limitations, such as the unavailability of the facilities because of intense laboratory schedules and little time to upgrade the sensor oscillatory system. So we suggest using the virtual prototyping approaches as an alternative to the descriptive approaches. One of the fundamental problems of creating a virtual prototype of the Cor

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Kumaraswamy, K. L., and T. Krishna Rao. "Sensitivity Variation Of A Flowmeter With Varying Shapes Of The Target." Journal of Mines, Metals and Fuels 70, no. 3A (2022): 124. http://dx.doi.org/10.18311/jmmf/2022/30680.

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<p>Accurate measurement of flow rate of fluids is known to be an essential requirement with various industrial applications. Flowmeters have been realized with different sensing methodologies; among them the target flowmeter/ drag flowmeter has been in the mainstay for decades. In the present research work, the variation in the sensitivity of a target flow meter with varying shapes of the targets is evaluated by experimental results and simulation. Flow rates of water between 0 lt/s to 1 lt/s is considered for sensitivity evaluation of the target flow meter with target being flat faced,

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Goto, Takahisa, Hayato Saito, Yoshinori Nakata, et al. "Effects of Xenon on the Performance of Various Respiratory Flowmeters." Anesthesiology 90, no. 2 (1999): 555–63. http://dx.doi.org/10.1097/00000542-199902000-00032.

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Background The anesthetic gas xenon has distinctly different physical properties compared with air, nitrous oxide, or oxygen. This led us to predict that xenon would affect the performance of commercially available flowmeters. Methods Flow was generated by an anesthesia ventilator connected to a lung simulator via a semiclosed breathing circuit. With the system filled with air or with various concentrations of xenon or nitrous oxide in a balance of oxygen, the tidal volume was measured with two rotating vanes, a Pitot tube, a variable-orifice flowmeter, and two constant-temperature hot-wire fl

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Davydov, Roman, Vadim Davydov, and Valentin Dudkin. "The Nuclear Magnetic Flowmeter for Monitoring the Consumption and Composition of Oil and Its Complex Mixtures in Real-Time." Energies 15, no. 9 (2022): 3259. http://dx.doi.org/10.3390/en15093259.

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The necessity of increasing the efficiency of primary oil purification in a drilling station or an offshore platform has been substantiated. We consider the problems that arise during the primary processing of oil mixtures. Important conditions for increasing the efficiency of primary purification (separation) of oil mixtures include measuring the consumption and determining the content of various impurities (water, undissolved particles) and air in them, with an error of no more than 2%. We analyzed the possibilities of using various designs of flowmeters to measure the consumption of the oil

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Barraclough, Veronika, Miroslav Strob, Jaroslav Pulec, Jan Novosád, Petra Dančová, and Jan Čížek. "Measurement of Fluid Flow with Different Velocity Profiles by New Built Ultrasonic Flowmeter." MATEC Web of Conferences 369 (2022): 01011. http://dx.doi.org/10.1051/matecconf/202236901011.

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The paper describes the development of a non-invasive flowmeter for lower flow rates and its first tests. This gauge is physically based on the interaction of fluid flow with an ultrasonic signal that passes through the fluid from the transmitter to the receiver. Ultrasonic flowmeters are currently relatively commonly used gauges, whose advantages such as non-invasiveness (i.e. zero pressure losses) and the ability to seamlessly measure the flow rates of any (for example opaque) liquids, without contact with the liquid, are widely known. However, there are still parts of the ultrasonic flowmet

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Kong, Lingcai, Liang Zhang, Hulin Guo, Ning Zhao, and Xinhu Xu. "Time Delay Study of Ultrasonic Gas Flowmeters Based on VMD–Hilbert Spectrum and Cross-Correlation." Sensors 24, no. 5 (2024): 1462. http://dx.doi.org/10.3390/s24051462.

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The accuracy of ultrasonic flowmeter time delay measurement is directly affected by the processing method of the ultrasonic echo signal. This paper proposes a method for estimating the time delay of the ultrasonic gas flowmeter based on the Variational Mode Decomposition (VMD)–Hilbert Spectrum and Cross-Correlation (CC). The method improves the accuracy of the ultrasonic gas flowmeter by enhancing the quality of the echo signal. To denoise forward and reverse ultrasonic echo signals collected at various wind speeds, a Butterworth filter is initially used. The ultrasonic echo signals are then a

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Qin, Hongwei, Ruirong Dang, and Bo Dang. "Research on Liquid Flow Measurement Method Based on Heat Transfer Method." Water 15, no. 6 (2023): 1052. http://dx.doi.org/10.3390/w15061052.

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Thermal flowmeters are used more and more widely in liquid flow measurement. In this paper, the mechanical shape of the thermal flowmeter is designed, and the optimal installation position of the thermal probe is determined. In the aspect of measurement mechanism research, three heating methods of the thermal probe are deduced: constant voltage heating method, constant current heating method, and constant power heating method. After reasoning, the constant current heating method is determined to be ideal, so the constant current heating method is selected to heat the speed-measuring probe in t

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