Flow Measurement and Instrumentation最新文献

Enhanced acoustic and hydrodynamic performance of cylindrical flow conditioners using rubber and steel fillers for gas metering 采用橡胶和钢填料的气体计量圆柱形流量调节器的声学和流体动力性能增强

IF 2.3 3区工程技术

Flow Measurement and Instrumentation Pub Date : 2024-11-29 DOI: 10.1016/j.flowmeasinst.2024.102768

Nikolay Dushin , Nikolay Mikheev , Aidar Valeev , Dinar Zaripov , Olga Dushina , Dmitriy Kratirov

引用次数: 0

Simulation and experiment of static and dynamic characteristics of pilot-operated proportional pressure reducing valve 先导式比例减压阀静、动态特性仿真与实验

IF 2.3 3区工程技术

Flow Measurement and Instrumentation Pub Date : 2024-11-28 DOI: 10.1016/j.flowmeasinst.2024.102764

Yutong Mo , Ce Zhang , Bo Jin , Lei Chen

{"title":"Simulation and experiment of static and dynamic characteristics of pilot-operated proportional pressure reducing valve","authors":"Yutong Mo , Ce Zhang , Bo Jin , Lei Chen","doi":"10.1016/j.flowmeasinst.2024.102764","DOIUrl":"10.1016/j.flowmeasinst.2024.102764","url":null,"abstract":"<div><div>As an important control component in hydraulic system, the static and dynamic performance of electro-hydraulic proportional valve directly affects the performance of the whole control system. In this paper, through the analysis of the operating principle of a specific pilot-operated proportional reducing valve, two static and dynamic mathematical models are established to simulate the performance of the valve. One model is constructed by empirical formulas, while the other one is corrected through CFD simulation and proportional solenoid test, firstly, a series of flow and fluid force interpolation models are obtained through CFD simulation, replacing the original empirical formulas. Secondly, relevant parameters of the proportional solenoid are corrected by testing its static and dynamic characteristics. To validate the validity of model correction and the accuracy of the corrected model, the static and dynamic experiments of the valve were conducted, and the results are compared with the simulation results of the models, which show that the experimental results are in better agreement with the simulation results of the corrected model. Therefore, this model can be used for further research on the valve.</div></div>","PeriodicalId":50440,"journal":{"name":"Flow Measurement and Instrumentation","volume":"101 ","pages":"Article 102764"},"PeriodicalIF":2.3,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142746368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the match-filtering ability of the electromagnetic flowmeter signals based on the generalized dual-frequency walsh transform 基于广义双频walsh变换的电磁流量计信号匹配滤波能力研究

IF 2.3 3区工程技术

Flow Measurement and Instrumentation Pub Date : 2024-11-28 DOI: 10.1016/j.flowmeasinst.2024.102767

Bin Li, Xue-qing Hou, Jie Chen, Sheng-Nan Zhang

{"title":"Study on the match-filtering ability of the electromagnetic flowmeter signals based on the generalized dual-frequency walsh transform","authors":"Bin Li, Xue-qing Hou, Jie Chen, Sheng-Nan Zhang","doi":"10.1016/j.flowmeasinst.2024.102767","DOIUrl":"10.1016/j.flowmeasinst.2024.102767","url":null,"abstract":"<div><div>This paper first considered the development of a generalized dual-frequency Walsh transform algorithm specifically for processing dual-frequency EMF signals, taking into account the measurement accuracy requirements in high-precision situations and the limited filtering performance of traditional methods. First, we build a mathematical model of the dual-frequency slurry EMF signal, which is essentially a superposition of interferences and an ideal EMF signal. Second, the match-filtering applicability of the generalized dual-frequency Walsh transform algorithm is verified by exploring the sequency-spectrum distributed features of the mathematical model. Finally, a series of theoretical measurement experiments was carried out, employing the signal-to-noise ratio (SNR) as the qualitative metric to assess the measurement performance of the proposed method. This research not only breaks the limitations of traditional excitation techniques on excitation frequency but also provides new research ideas for signal processing similar to periodic rectangular waves.</div></div>","PeriodicalId":50440,"journal":{"name":"Flow Measurement and Instrumentation","volume":"102 ","pages":"Article 102767"},"PeriodicalIF":2.3,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142759298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Transportation characteristics analysis of the dense-phase gas-solid two-phase flow based on phase space reconstruction 基于相空间重构的密相气固两相流输运特性分析

IF 2.3 3区工程技术

Flow Measurement and Instrumentation Pub Date : 2024-11-26 DOI: 10.1016/j.flowmeasinst.2024.102760

Feifei Fu, Xiuyun Zheng

{"title":"Transportation characteristics analysis of the dense-phase gas-solid two-phase flow based on phase space reconstruction","authors":"Feifei Fu, Xiuyun Zheng","doi":"10.1016/j.flowmeasinst.2024.102760","DOIUrl":"10.1016/j.flowmeasinst.2024.102760","url":null,"abstract":"<div><div>The operational efficiency and safety of the dense phase pneumatic conveying system is deeply influenced by the transportation characteristics of the dense-phase gas-solid two-phase flow in conveying pipelines. This paper presents a framework for analyzing the transport characteristics of the gas-solid two-phase flow based on the phase space reconstruction. The framework explores the transport characteristics by reconstructing the state evolution trajectories of the two-phase flow system in state space. The main goal is to enhance the interpretability of feature analysis. By employing the phase space reconstruction method to process the output signals of an electrostatic sensor, the evolution trajectory of the dynamic state of the gas-solid two-phase flow system was reconstructed in phase space.This provides an effective entry point for extracting the essential dynamic characteristics of the gas-solid two-phase flow system. Furthermore, a series of feature values were proposed, including the average speed of the trajectory, Shannon entropy of the trajectory, and the average distance between state points in phase space, which were used to respectively evaluate important transportation characteristics such as flowability, stability, and particle aggregation degree of the gas-solid two-phase flow. Moreover, through comparative analysis with visualization images that represent actual conveying conditions, the effectiveness of these proposed feature values in evaluating these transportation characteristics was verified.</div></div>","PeriodicalId":50440,"journal":{"name":"Flow Measurement and Instrumentation","volume":"102 ","pages":"Article 102760"},"PeriodicalIF":2.3,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142759299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Seepage monitoring at variable spatial positions under natural convection with active heating 自然对流主动加热条件下变空间位置渗流监测

IF 2.3 3区工程技术

Flow Measurement and Instrumentation Pub Date : 2024-11-26 DOI: 10.1016/j.flowmeasinst.2024.102759

Ruiyang Liu , Liang Chen , Shufa Yan , Hanxuan Luo , Fengzhe Tian , Zhiwen Xie

{"title":"Seepage monitoring at variable spatial positions under natural convection with active heating","authors":"Ruiyang Liu , Liang Chen , Shufa Yan , Hanxuan Luo , Fengzhe Tian , Zhiwen Xie","doi":"10.1016/j.flowmeasinst.2024.102759","DOIUrl":"10.1016/j.flowmeasinst.2024.102759","url":null,"abstract":"<div><div>Monitoring seepage by temperature tracer method has been widely used, where the vertical flow has been proven to be an indispensable factor. However, current research still lacks adequate consideration of it, especially for the natural convection caused by active heating. In this paper, theoretical derivation and experiments are both conducted, a two-dimensional dimensionless temperature rise–seepage velocity formula considering the natural convection is derived. Meanwhile, through the experiment system and a multi-temperature measuring sheets device, heating and temperature measurement experiments are carried out under calm water and various flow velocities ranging from 10<sup>−6</sup> cm s<sup>−1</sup> to 10<sup>−3</sup> cm s<sup>−1</sup>. By comparing the temperature–time curves of different positions at different heating times in calm water, the mechanism of natural convection caused by active heating is researched. Based on this, several temperature measuring sheets are chosen, the formulas of different positions are obtained by fitting, relative influence to temperature rise–flow velocity patterns of different positions are studied. This study is of great significance for further understanding the temperature-velocity relationship, and for the design of heating-temperature measuring device used in seepage velocity monitoring with active heating.</div></div>","PeriodicalId":50440,"journal":{"name":"Flow Measurement and Instrumentation","volume":"101 ","pages":"Article 102759"},"PeriodicalIF":2.3,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142746367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Edge-based intelligent fault diagnosis for centrifugal pumps in microbreweries 基于边缘的微型酿酒厂离心泵智能故障诊断

IF 2.3 3区工程技术

Flow Measurement and Instrumentation Pub Date : 2024-11-22 DOI: 10.1016/j.flowmeasinst.2024.102730

Andre Luis Dias , Marcio Rafael Buzoli , Vinicius Rodrigues da Silva , Jean Carlos Rodrigues da Silva , Afonso Celso Turcato , Guilherme Serpa Sestito

{"title":"Edge-based intelligent fault diagnosis for centrifugal pumps in microbreweries","authors":"Andre Luis Dias , Marcio Rafael Buzoli , Vinicius Rodrigues da Silva , Jean Carlos Rodrigues da Silva , Afonso Celso Turcato , Guilherme Serpa Sestito","doi":"10.1016/j.flowmeasinst.2024.102730","DOIUrl":"10.1016/j.flowmeasinst.2024.102730","url":null,"abstract":"<div><div>The beer sector is a significant market worldwide and the number of small breweries is increasing. Centrifugal pumps are essential components for the proper functioning of the production system. However, failures in these equipment can be detected early by Intelligent Fault Diagnosis (IFD) Systems. In this context, this article aims to develop an IFD capable of detecting cavitation and dry-running faults. The proposed method explored the use of data provided by centrifugal pump drives, such as current, torque, and power factor. It was investigated two approaches: using the Shapley value as a feature selector and the Support Vector Machine (SVM) as the classifier, and applying the raw signal data to 1D Convolutional Neural Networks (CNN). The SVM-based model presented better results, with an accuracy of 100% for dry running and 99.3% for cavitation. The CNN-based model presented 97.4% and 80.2% respectively. It is also identified that torque is the most relevant variable.</div></div>","PeriodicalId":50440,"journal":{"name":"Flow Measurement and Instrumentation","volume":"101 ","pages":"Article 102730"},"PeriodicalIF":2.3,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142723654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A review of calibration standards, devices and methods for gas flow in semiconductor manufacturing processes 半导体制造过程中气体流量的校准标准、设备和方法综述

IF 2.3 3区工程技术

Flow Measurement and Instrumentation Pub Date : 2024-11-22 DOI: 10.1016/j.flowmeasinst.2024.102753

Gaoming Zhang , Boxu Hui , Zhipeng Xu , Bin Zhou , Bengt Sundén , Zhen Cao

{"title":"A review of calibration standards, devices and methods for gas flow in semiconductor manufacturing processes","authors":"Gaoming Zhang , Boxu Hui , Zhipeng Xu , Bin Zhou , Bengt Sundén , Zhen Cao","doi":"10.1016/j.flowmeasinst.2024.102753","DOIUrl":"10.1016/j.flowmeasinst.2024.102753","url":null,"abstract":"<div><div>Semiconductor manufacturing involves various gases in about 500 processes of oxidation, vapor deposition, lithography, etching doping, inerting, annealing, and chamber cleaning. To ensure the quality of manufactured semiconductors, accurate and reproducible gas flow measurement and control are necessary. Gas flow standards with low uncertainty are the foundation of accurate gas flow measurements and traceability for flow meters and mass flow controllers used in semiconductor manufacturing. Besides, physical models are significant to calculate or correct the measured flow rate and extrapolate calibration results to unknown gases introduced into the manufacturing process. Thus, in this work the intention is to provide the principles, structures and performances of gas flow standards used for calibration of process gases and corresponding models and methods for gas flow calculation and corrections. The aim is to provide some advice on measurement and calibration of gas flow in semiconductor manufacturing processes.</div></div>","PeriodicalId":50440,"journal":{"name":"Flow Measurement and Instrumentation","volume":"101 ","pages":"Article 102753"},"PeriodicalIF":2.3,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142746369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A prediction model for the propagation of continuous pressure waves in complex structure wells 复杂结构井中连续压力波传播预测模型

IF 2.3 3区工程技术

Flow Measurement and Instrumentation Pub Date : 2024-11-20 DOI: 10.1016/j.flowmeasinst.2024.102749

Song Weiqiang , Li Wenzhuang , Yu Haiyang , Ma Hai , Hou Shugang , Kong Lulin , Wang Qing

{"title":"A prediction model for the propagation of continuous pressure waves in complex structure wells","authors":"Song Weiqiang , Li Wenzhuang , Yu Haiyang , Ma Hai , Hou Shugang , Kong Lulin , Wang Qing","doi":"10.1016/j.flowmeasinst.2024.102749","DOIUrl":"10.1016/j.flowmeasinst.2024.102749","url":null,"abstract":"<div><div>Continuous pressure wave (CPW) is regarded as promising information transmission technology while drilling. Based on fluid dynamics water hammer theory, this study proposes a prediction model for quantitatively calculating the propagation velocity and amplitude attenuation of CPW with consideration of the compressibility of the drilling fluid and the reflection and stacking of waves in complex structure wells. The mathematical model is then validated by the experiments with water as circulating fluid in curved pipe with length exceeding 600m. The results show that, the pressure drop rate along the pipe is 8112 Pa/m, and the pressure drop of the double curved head is 7070 Pa, and the error of the simulation results is less than 13 % compared with real tests. The propagation velocity of the CPW is in positive correlation with the static pressure in the pipe. The CPW propagates with standing wave characteristics, and it is significantly influenced by the reflection and stacking in curved wells. The amplitude attenuation of the CPW could be models with negative exponential function during propagation upward along the well. The results would facilitate to clarify the application scope of certain CPW devices.</div></div>","PeriodicalId":50440,"journal":{"name":"Flow Measurement and Instrumentation","volume":"101 ","pages":"Article 102749"},"PeriodicalIF":2.3,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142702914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic behaviors of large-diameter pilot-operated pressure safety valves: Co-simulation model development and measurements 大口径先导式压力安全阀的动态行为：联合仿真模型开发与测量

IF 2.3 3区工程技术

Flow Measurement and Instrumentation Pub Date : 2024-11-20 DOI: 10.1016/j.flowmeasinst.2024.102752

Lintao Wang , Zihan Wang , Xinkai Ding , Liansheng Wang , Xue Wang

引用次数: 0

The enhanced sensitivity of pitot tubes at low Reynolds number 在低雷诺数条件下提高皮托管的灵敏度

IF 2.3 3区工程技术

Flow Measurement and Instrumentation Pub Date : 2024-11-20 DOI: 10.1016/j.flowmeasinst.2024.102750

Keld R. Rasmussen , Jens Jacob Iversen , Jonatan Merrison

{"title":"The enhanced sensitivity of pitot tubes at low Reynolds number","authors":"Keld R. Rasmussen , Jens Jacob Iversen , Jonatan Merrison","doi":"10.1016/j.flowmeasinst.2024.102750","DOIUrl":"10.1016/j.flowmeasinst.2024.102750","url":null,"abstract":"<div><div>Pitot tubes are commonly used for measuring flow velocity in air and other fluids. The aim of this experimental study was to link flow conditions and geometry to the differential pressure response (<em>Δp</em>) of pitot tubes. Based on outer diameter the pitot tube Reynolds number (Re<sub><em>D</em></sub>) ranges from less than 1 (molecular regime) to more than 100 (inertial regime). This large range in Reynolds number was achieved by varying the pitot tube outer diameter in the range 0.4–10 mm, the air density from 0.006 to 1.2 kg/m<sup>3</sup> and the air velocity from 0.25 to 30 m/s and by operating pitot tubes within a recirculating low pressure wind tunnel down to a pressure of 0.5 mbar as well as performing comparative observation in an open circuit wind tunnel. For the smallest Re<sub><em>D</em></sub>, viscous forces enhance <em>Δp</em> giving the smallest micro-pitot tubes superior functionality especially at low pressure. The small diameter of the micro-pitot tubes can also allow measurements close to a wall within the boundary layer. Measurements of <em>Δp</em> for Re<sub><em>D</em></sub> between approximately 0.08 and 1000 agree well with an analytical model derived by Muriel Barker in 1922 while they agree less well or even poorly with more recent models. At the lowest Re<sub><em>D</em></sub> the maximum enhancement of <em>Δp</em> was observed to be a factor of 65. The enhancement became undetectable for Re<sub><em>D</em></sub> larger than approximately 70. At the lowest air density and the smallest pitot tube inner diameter possible effects due to slip were observed.</div></div>","PeriodicalId":50440,"journal":{"name":"Flow Measurement and Instrumentation","volume":"101 ","pages":"Article 102750"},"PeriodicalIF":2.3,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142702917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0