Relevant bibliographies by topics / Volumetric flow rate

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Volumetric flow rate'

Author: Grafiati
Published: 4 June 2021
Last updated: 17 February 2022

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Journal articles on the topic "Volumetric flow rate"

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Hoyt, Kenneth, Felix A. Hester, Randall L. Bell, Mark E. Lockhart, and Michelle L. Robbin. "Accuracy of Volumetric Flow Rate Measurements." Journal of Ultrasound in Medicine 28, no. 11 (November 2009): 1511–18. http://dx.doi.org/10.7863/jum.2009.28.11.1511.

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Hedlund, H. "Calculating Linear Flow Velocity from Volumetric Flow Rate." Cold Spring Harbor Protocols 2010, no. 2 (February 1, 2010): pdb.ip78. http://dx.doi.org/10.1101/pdb.ip78.

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Calafiore, P. a. u. l., and William Stewart. "Doppler Echocardiographic Quantitation of Volumetric Flow Rate." Cardiology Clinics 8, no. 2 (May 1990): 191–202. http://dx.doi.org/10.1016/s0733-8651(18)30362-x.

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Kovalčíková, KristÍna, Martin Slavík, Katarína Bachratá, Hynek Bachratý, and Alžbeta Bohiniková. "Volumetric flow rate in simulations of microfluidic devices." EPJ Web of Conferences 180 (2018): 02046. http://dx.doi.org/10.1051/epjconf/201818002046.

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In this work, we examine the volumetric flow rate of microfluidic devices. The volumetric flow rate is a parameter which is necessary to correctly set up a simulation of a real device and to check the conformity of a simulation and a laboratory experiments [1]. Instead of defining the volumetric rate at the beginning as a simulation parameter, a parameter of external force is set. The proposed hypothesis is that for a fixed set of other parameters (topology, viscosity of the liquid, …) the volumetric flow rate is linearly dependent on external force in typical ranges of fluid velocity used in our simulations. To confirm this linearity hypothesis and to find numerical limits of this approach, we test several values of the external force parameter. The tests are designed for three different topologies of simulation box and for various haematocrits. The topologies of the microfluidic devices are inspired by existing laboratory experiments [3 - 6]. The linear relationship between the external force and the volumetric flow rate is verified in orders of magnitudes similar to the values obtained from laboratory experiments.
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Elgmati, A. R., R. E. Flori, and C. S. Kabir. "Analyzing variable-rate flow in volumetric oil reservoirs." Journal of Petroleum Science and Engineering 135 (November 2015): 268–79. http://dx.doi.org/10.1016/j.petrol.2015.08.017.

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Chern, Ming-Jyh, and Chih-Cheng Wang. "Control of Volumetric Flow-Rate of Ball Valve Using V-Port." Journal of Fluids Engineering 126, no. 3 (May 1, 2004): 471–81. http://dx.doi.org/10.1115/1.1760536.

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The control of volume flow rate in a ball valve is very important when a ball valve is utilized in a piping system. It is difficult to linearly control the flow rate in a ball valve without external devices. V-ports are employed to achieve this purpose. In order to investigate the effects of V-port on the volume flow rate and flow features, 3-D numerical simulations and experiments were conducted to observe the flow patterns and to measure performance coefficients when V-ports with various angles were used in a piping system. Three V-ports with angles 30 deg, 60 deg, and 90 deg were studied. It was found that V-ports with angles 30 deg and 60 deg make the flow rate proportional to the valve opening. However, V-ports increase the pressure loss between the inlet and the exit of a ball valve. In addition, V-ports with a small angle such as 30 deg increase the possibility of cavitation compared with flows without V-ports.
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Mulyono, Panut, I. Made Bendiyasa, Dita Budi Wibawa, and Suryo Birowo. "Sistem penyimpanan energi panas kontak langsung menggunakan larutan Na2HPO4•12H2O." Jurnal Teknik Kimia Indonesia 4, no. 3 (October 9, 2018): 270. http://dx.doi.org/10.5614/jtki.2005.4.3.2.

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The volumetric coefficient of heat transfer and the energy storage capacity in a direct contact thermal energy storage system using Na2HPO4.12H2O solution as thermal energy storage medium have been investigated. Hot kerosene was used as a heal transfer fluid. The experiments were carried out by bubbling hot kerosene from the bottom of a column containing Na2HPO4.12H2O solution. The column used in this experiment was made from glass of 3 mm in thickness with an inside diameter of 7 cm and a height of 100 cm. The effects of kerosene flow rate and kerosene bubble diameter on the volumetric coefficient of heat transfer and the storing rate of energy were studied. It was found that the volumetric coefficient of heat transfer was strongly affected by the flow rate of the kerosene and that the effect of the kerosene flow rate on the storing rate of energy was relative v high, while that of the effect of the bubble diameter was neglectable.Keywords: Direct Contact, Thermal Energy Storage System, Na2HPO4.12H2O Solution AbstrakPenelitian ini mempelajari sistem penyimpanan energi panas kontak langsung menggunakan larutan Na2HPO4.12H2O sebagai media penyimpan energi. Kerasin panas digunakan sebagai fluida alir sumber energi panas. Masalah yang dipelajari pada penelitian ini adalah nilai koefisien perpindahan panas volumetris dan kapasitas penyimpanan panasnya. Percobaan dilakukan dengan menggelembungkan kerasin panas dari dasar kolom yang berisi larutan Na2HPO4.12H2O. Kolom yang digunakan dibuat dari gelas dengan ketebalan 3 mm, mempunyai diameter dalam 7 cm, dan tinggi kolomnya adalah 100 cm. Parameter yang dipelajari dalam penelitian ini adalah pengaruh kecepatan volumetris kerosin dan pengaruh diameter gelembung kerosin terhadap nilai koefisien perpindahan panas volumetris dan terhadap kecepatan penyimpanan panasnya. Hasil penelitian menunjukkan bahwa nilai koejisien perpindahan panas volumetris sangat dipengaruhi oleh kecepatan volumetris kerosin sehingga kecepatan penyimpanan panasnya juga sangat dipengaruhi oleh kecepatan volumetris kerosin. Pengaruh ukuran diameter gelembung terhadap nilai koefisien perpindahan panas volumetris dan terhadap kecepatan penyimpanan panasnya sangat kecil sehingga dapat diabaikan.Kata Kunci: Sistem Penyimpanan Energi Panas, Kontak Langsung, Larutan Na2HPO4.12H2O
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Treaftis, Harry N., Thomas F. Tomb, and Andrew J. Gero. "Effect of Altitude on the Volumetric Flow Rate of Constant Flow Pumps." Applied Industrial Hygiene 1, no. 1 (April 1986): 54–58. http://dx.doi.org/10.1080/08828032.1986.10390444.

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Chesnokov, V. I. "Improving the estimation of methodological errors in reproducing the volumetric air flow rate by reference critical nozzle." Metrologiya, no. 1 (May 31, 2021): 4–30. http://dx.doi.org/10.32446/0132-4713.2021-1-4-30.

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In the development of the previously obtained results a more accurate estimate of the methodological error in reproducing the volumetric air flow rate by reference critical nozzle is given, associated with the choice of the gas flow model and due to taking into account the initial kinetic energy of the flow at the nozzle inlet. Based on improved flow model an analytical evaluation of the methodological error in reproducing the volumetric air flow rate by reference critical nozzle, which is due to a change in the humidity of the working air, has been carried out. It is shown that the methodological error in reproducing the volumetric air flow rate by reference critical nozzle, associated with a change in the air humidity, as well as the analogies methodical error caused by the existence of the initial kinetic energy of the flow, must be taken part in accuracy characteristics at the real operating conditions of the standard volumetric air flow rate using critical nozzles.
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Shenoy, Aroon. "Unifying Asphalt Rheological Data Using the Material's Volumetric-Flow Rate." Journal of Materials in Civil Engineering 13, no. 4 (August 2001): 260–73. http://dx.doi.org/10.1061/(asce)0899-1561(2001)13:4(260).

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Dissertations / Theses on the topic "Volumetric flow rate"

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Muhamedsalih, Yousif. "Two-phase flow meter for determining water and solids volumetric flow rate in vertical and inclined solids-in-water flows." Thesis, University of Huddersfield, 2014. http://eprints.hud.ac.uk/id/eprint/23741/.

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Multiphase flow can be defined as the simultaneous flow of a stream of two or more phases. Solids-in-water flow is a multiphase flows where solids and liquid are both present. Due to the density differences of the two phases, the results for such flow is often to have non-uniform profiles of the local volume fraction and local axial velocity for both phases in the flow cross-section. These non-uniform profiles are clearly noticeable in solids-in-water stratified flow with moving bed for inclined and horizontal pipelines. However in many industrial applications, such as oil and gas industry, food industry and mining industry, multiphase flows also exist and it is essentially important to determine the phase concentration and velocity distributions in through the pipe cross-section in order to be able to estimate the accurately the volumetric flow rate for each phase. This thesis describe the development of a novel non-intrusive flow meter that can be used for measuring the local volume fraction distribution and local axial velocity distributions of the continuous and discontinuous phases in highly non-uniform multiphase flows for which the continuous phase is electrically conducting and the discontinuous phase is an insulator. The developed flow meter is based on combining two measurement techniques: the Impedance cross correlation ICC technique and the electromagnetic velocity profiler EVP technique. Impedance cross correlation ICC is a non-invasive technique used to measure the local volume fraction distributions for both phases and the local velocity distribution for the dispersed phase over the pipe cross-section, whilst the electromagnetic velocity profiler EVP technique is used to v measure the local axial velocity profile of the continuous phase through the pipe cross-section. By using these profiles the volumetric flow rates of both phases can be calculated. A number of experiments were carried out in solid-in-water flow in the University of Huddersfield solids-in-water flow loop which has an 80 mm ID and an approximately 3m long working section. ICC and EVP systems were mounted at 1.6 m from the working section inlet which was inclined at 0 and 30 degree to the vertical. The obtained result for the flow parameters including phase volume fraction and velocity profiles and volumetric flow rates, have been compared with reference measurements and error sources of difference with their reference measurements have been identified and investigated.
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PRETTO, LUCAS R. de. "Desenvolvimento de um algoritimo otimizado para caracterização de fluxos microfluídicos utilizando padrões de speckle presentes no sinal de tomografia por coerência óptica." reponame:Repositório Institucional do IPEN, 2015. http://repositorio.ipen.br:8080/xmlui/handle/123456789/23738.

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Submitted by Claudinei Pracidelli (cpracide@ipen.br) on 2015-06-11T17:44:49Z No. of bitstreams: 0
Made available in DSpace on 2015-06-11T17:44:49Z (GMT). No. of bitstreams: 0
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Dissertação (Mestrado em Tecnologia Nuclear)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
FAPESP:13/05492-9
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Groshong, Kimberly Ann. "Modeling the Effect of Calcium Concentration and Volumetric Flow Rate Changes on the Growth of Rimstone Dam Formations Due to Calcium Carbonate Precipitation." University of Akron / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=akron1220067458.

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Solomon, Brad K. "Methods for Identifying Acoustic Emissions From the Front Face of a Small Piezoelectric Blower." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3542.

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This thesis focuses on identifying acoustic noise generating components in piezoelectric blowers through transverse velocity measurements and the development of a numerical fluid model. Piezoelectric ceramics have proven useful for many industries and areas of research involving: high precision actuators, noise control, ultrasonic devices, and many other areas. As of late, a unique adaptation of piezoelectric ceramics is surfacing in the area of pumping and cooling. Air pumps that use these ceramics replace the traditional electric motor, resulting in lower power consumption, less moving parts, constant pressure gradients, lower overall weight, and a low profile. The current drawback of this application is the acoustic radiation produced by the blowers. Since these blowers are new to market, little research or development has been done to characterize the noise emissions. This thesis studies the acoustic emissions from the front face of a Murata piezoelectric blower. Jet noise and structural vibrations are two acoustic sources of interest that are studied in this research. A Direct Numerical Simulation (DNS) of the fluid flow through a Murata blower is developed to better identify noise generating mechanisms. The model solutions predict trends in sound pressure levels (SPL) of the jet noise and volumetric flow rates. Both the SPL and flow rate are shown to be functions of critical geometrical dimensions within the flow path of a Murata blower. Important dimensional components are identified as well as non-influential ones. Design guidelines are given to reduce noise emission from the front side of a blower and increase the volumetric flow rate. The results of this research have a direct impact on the piezoelectric blower industry and future blower designs.
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Jiang, Shuang. "Bacterial leaching from dairy shed effluent applied to a fine sandy loam under flood and spray irrigations." Lincoln University, 2008. http://hdl.handle.net/10182/668.

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Land application of wastes has become increasingly popular, to promote nutrient recycling and environmental protection, with soil functioning as a partial barrier between wastes and groundwater. Dairy shed effluent (DSE), may contain a wide variety of pathogenic micro-organisms, including bacteria (e.g. Salmonella paratyphyi, Escherichia coli. and Campylobacter), protozoa and viruses. Groundwater pathogen contamination resulting from land-applied DSE is drawing more attention with the intensified development of the dairy farm industry in New Zealand. The purpose of this research was to investigate the fate and transport of bacterial indicator-faecal coliform (FC) from land-applied DSE under different irrigation practices via field lysimeter studies, using two water irrigation methods (flood and sprinkler) with contrasting application rates, through the 2005-2006 irrigation season. It was aimed at better understanding, quantifying and modelling of the processes that govern the removal of microbes in intact soil columns, bridging the gap between previous theoretical research and general farm practices, specifically for Templeton soil. This study involved different approaches (leaching experiments, infiltrometer measurements and a dye infiltration study) to understand the processes of transient water flow and bacterial transport; and to extrapolate the relationships between bacterial transport and soil properties (like soil structure, texture), and soil physical status (soil water potential ψ and volumetric water content θ). Factors controlling FC transport are discussed. A contaminant transport model, HYDRUS-1D, was applied to simulate microbial transport through soil on the basis of measured datasets. This study was carried out at Lincoln University’s Centre for Soil and Environmental Quality (CSEQ) lysimeter site. Six lysimeters were employed in two trials. Each trial involved application of DSE, followed by a water irrigation sequence applied in a flux-controlled method. The soil columns were taken from the site of the new Lincoln University Dairy Farm, Lincoln, Canterbury. The soil type is Templeton fine sandy loam (Udic-Ustochrept, coarse loamy, mixed, mesic). Vertical profiles (at four depths) of θ and ψ were measured during leaching experiments. The leaching experiments directly measured concentrations of chemical tracer (Br⁻ or Cl⁻) and FC in drainage. Results showed that bacteria could readily penetrate through 700 mm deep soil columns, when facilitated by water flow. In the first (summer) trial, FC in leachate as high as 1.4×10⁶ cfu 100 mL⁻¹ (similar to the DSE concentration), was detected in one lysimeter that had a higher clay content in the topsoil, immediately after DSE application, and before any water irrigation. This indicates that DSE flowed through preferential flow paths without significant treatment or reduction in concentrations. The highest post-irrigation concentration was 3.4×10³ cfu 100 mL⁻¹ under flood irrigation. Flood irrigation resulted in more bacteria and Br⁻ leaching than spray irrigation. In both trials (summer and autumn) results showed significant differences between irrigation treatments in lysimeters sharing similar drainage class (moderate or moderately rapid). Leaching bacterial concentration was positively correlated with both θ and ψ, and sometimes drainage rate. Greater bacterial leaching was found in the one lysimeter with rapid whole-column effective hydraulic conductivity, Keff, for both flood and spray treatments. Occasionally, the effect of Keff on water movement and bacterial transport overrode the effect of irrigation. The ‘seasonal condition’ of the soil (including variation in initial water content) also influenced bacterial leaching, with less risk of leaching in autumn than in summer. A tension infiltrometer experiment measured hydraulic conductivity of the lysimeters at zero and 40 mm suction. The results showed in most cases a significant correlation between the proportion of bacteria leached and the flow contribution of the macropores. The higher the Ksat, the greater the amount of drainage and bacterial leaching obtained. This research also found that this technique may exclude the activity of some continuous macropores (e.g., cracks) due to the difference of initial wetness which could substantially change the conductivity and result in more serious bacterial leaching in this Templeton soil. A dye infiltration study showed there was great variability in water flow patterns, and most of the flow reaching deeper than 50 cm resulted from macropores, mainly visible cracks. The transient water flow and transport of tracer (Br⁻) and FC were modelled using the HYDRUS-1D software package. The uniform flow van Genuchten model, and the dual-porosity model were used for water flow and the mobile-immobile (MIM) model was used for tracer and FC transport. The hydraulic and solute parameters were optimized during simulation, on the basis of measured datasets from the leaching experiments. There was evidence supporting the presence of macropores, based on the water flow in the post-DSE application stage. The optimised saturated water content (θs) decreased during the post-application process, which could be explained in terms of macropore flow enhanced by irrigation. Moreover, bacterial simulation showed discrepancies in all cases of uniform flow simulations at the very initial stage, indicating that non-equilibrium processes were dominant during those short periods, and suggesting that there were strong dynamic processes involving structure change and subsequently flow paths. It is recommended that management strategies to reduce FC contamination following application of DSE in these soils must aim to decrease preferential flow by adjusting irrigation schemes. Attention needs to be given to a) decreasing irrigation rates at the beginning of each irrigation; b) increasing the number of irrigations, by reducing at the same time the amount of water applied and the irrigation rate at each irrigation; c) applying spray irrigation rather than flood irrigation.
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HSIEH, YI-HSUAN, and 謝宜軒. "Analysis of hemodynamic characteristics in PC-MRI measurements for high flow resistance and high volumetric flow rate pulmonary arterial hypertension patients." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/70878379907376072902.

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碩士
國立臺灣科技大學
機械工程系
100
Pulmonary arterial hypertension (PAH) is a fatal, chronic cardiovascular disease that affects both the heart and lungs. This disease is characterized by elevating pulmonary arterial pressure and increasing pulmonary vascular resistance (PVR). A total of 14 cases (7 healthy volunteers, 4 patients with PAH-HFR and 3 patients with PAH-HVF) are analyzed to explain the difference of hemodynamics between the healthy PA and PAH and to find out pathogenesis of PAH. To investigate the relationship between hemodynamics and PAH, the Phase Contrast Magnetic Resonance Imagining (PC-MRI) measured in vivo blood flows’ velocity data are calculated further physical quantities. Flow patterns, pressure distribution, average shear stress (ASS), oscillatory shear index (OSI), relative area change (RAC), pulse wave velocity (PWV), acceleration time(Ta) and blood volumetric flow rate (Q) are measured in PA. Results show that the flow patterns in PAH are more complex than that in normal cases. Pressure gradients in right pulmonary artery (RPA) and left pulmonary artery (LPA) of PAH are lower than those in normal cases so that blood does not flow into lungs easily. There are more near wall regions with high oscillatory shear index (OSI) and also low average shear stress (ASS) in MPA, LPA, and RPA of PAH cases. Inverse correlation are found between relative area change (RAC) and mPAP in both RAC1 and RAC2 in this study. PWV in normal cases and PAH cases is proportional to mean pulmonary artery pressure (mPAP). Assessed RAC and PWV show that PA stiffness increases in the PAH cases with high mPAP. Ta in the nromal cases is longer than PAH-HFR and PAH-HVF cases in MPA, LPA and RPA.
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Barfett, Joseph. "Blood Velocity and Volumetric Flow Rate Calculated from Dynamic 4D CT Angiography using a Time of Flight Approach." Thesis, 2014. http://hdl.handle.net/1807/44003.

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Purpose: A time of flight approach to the analysis of 4D CT angiography is examined to calculate blood flow in arteries. Materials and Methods: Software was written to track contrast bolus TOF along a central vessel axis. Time density curves were analyzed to determine bolus time to peak at successive vessel cross-sections which were plotted against vessel path length. A line of best fit was plotted through the resulting data and 1/slope provided a measurement of velocity. Results: Validation was successful in simulation and in flow phantoms, though quality of results depended strongly on quality of curve fit. In phantoms and in vivo, accuracy and reproducibility of measurements improved with longer path lengths and, in vivo, depended on the avoidance of venous contamination. Conclusions: Quantitative functional intravascular information such as blood velocity and flow rate may be calculated from 4D CT angiography.
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Book chapters on the topic "Volumetric flow rate"

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Svitenkov, Andrey I., Pavel S. Zun, and Oleg A. Shramko. "Stenosis Assessment via Volumetric Flow Rate Calculation." In Computational Science – ICCS 2021, 707–18. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-77967-2_59.

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Cheranun, Kaewku, and Promkotra Sarunya. "Secondary Migration of Fang Crude Petroleum Related to Volumetric Flow Rate." In Exergy for A Better Environment and Improved Sustainability 1, 397–410. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-62572-0_28.

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Fayssal, I., and F. Moukalled. "The Development of SIM to Characterize Blood Volumetric Flow Rate and Hemodynamics in Human Coronary Arteries." In IFMBE Proceedings, 1704–7. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-19387-8_414.

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Mondal, Debayan. "Case Study Related to Volumetric Capacity, Mass Flow Rate and Filling Factor Against a Constant Trough Height As 180 mm for a Screw Feeder with Continuous Screw." In Techno-Societal 2020, 715–23. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69925-3_69.

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"Q is the volumetric flow rate. Dis the capillary diameter. and the differenti-." In Polymer and Composite Rheology, 230. CRC Press, 2000. http://dx.doi.org/10.1201/9781482273700-22.

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Gray, William G., and Michael A. Celia. "Incorporation of Interfacial Areas in Models of Two-Phase Flow." In Vadose Zone Hydrology. Oxford University Press, 1999. http://dx.doi.org/10.1093/oso/9780195109900.003.0006.

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The mathematical study of flow in porous media is typically based on the 1856 empirical result of Henri Darcy. This result, known as Darcy’s law, states that the velocity of a single-phase flow through a porous medium is proportional to the hydraulic gradient. The publication of Darcy’s work has been referred to as “the birth of groundwater hydrology as a quantitative science” (Freeze and Cherry, 1979). Although Darcy’s original equation was found to be valid for slow, steady, one-dimensional, single-phase flow through a homogeneous and isotropic sand, it has been applied in the succeeding 140 years to complex transient flows that involve multiple phases in heterogeneous media. To attain this generality, a modification has been made to the original formula, such that the constant of proportionality between flow and hydraulic gradient is allowed to be a spatially varying function of the system properties. The extended version of Darcy’s law is expressed in the following form: qα=-Kα . Jα (2.1) where qα is the volumetric flow rate per unit area vector of the α-phase fluid, Kα is the hydraulic conductivity tensor of the α-phase and is a function of the viscosity and saturation of the α-phase and of the solid matrix, and Jα is the vector hydraulic gradient that drives the flow. The quantities Jα and Kα account for pressure and gravitational effects as well as the interactions that occur between adjacent phases. Although this generalization is occasionally criticized for its shortcomings, equation (2.1) is considered today to be a fundamental principle in analysis of porous media flows (e.g., McWhorter and Sunada, 1977). If, indeed, Darcy’s experimental result is the birth of quantitative hydrology, a need still remains to build quantitative analysis of porous media flow on a strong theoretical foundation. The problem of unsaturated flow of water has been attacked using experimental and theoretical tools since the early part of this century. Sposito (1986) attributes the beginnings of the study of soil water flow as a subdiscipline of physics to the fundamental work of Buckingham (1907), which uses a saturation-dependent hydraulic conductivity and a capillary potential for the hydraulic gradient.
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Chen, Song, Zhonghua Zhang, Junwu Kan, Jianping Li, and Jianming Wen. "Design, Characterisation and Prospect of Piezoelectric Microfluidic Technology." In Piezoelectric Actuators - Principles, Design, Experiments and Applications [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.98559.

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Fluidic driving device plays an important role in the delivery and distribution of minute amount of the liquid in the micro-fluidic system. Due to the unique advantages of simple structure, short response time, and low power consumption, piezoelectric actuation was employed to implement the microfluidic transportation. A piezoelectrically driven microfluidic device, piezoelectric pump, was developed and widely applied in many fields in last three decades. As a kind of displacement pump, piezoelectric pumps is able to realize accurate transportation of the liquid because of per stroke of output fluid is equal to the volumetric change of pumping chamber. And the output flow rate and pressure is easily to be controlled through adjusting the driving voltage or frequency. In this chapter, the design, structure, working principle and the characterisation of piezoelectric pumps with single chamber and multiple chambers are introduced.
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Lighton, John R. B. "The Varieties of Flow Meters." In Measuring Metabolic Rates, 207–16. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198830399.003.0017.

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This chapter discusses the most frequently used flow meters in respirometry. These include the volumetric rotameter, which is affected by ambient temperature and barometric pressure; and the mass flow meter, which directly measures the molar quantity of air passing through it, and thus automatically corrects the volume to standard temperature and pressure. The operation and calibration of each type of meter are discussed.
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Magee, Patrick, and Mark Tooley. "Intravenous Pumps and Syringe Drivers." In The Physics, Clinical Measurement and Equipment of Anaesthetic Practice for the FRCA. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199595150.003.0031.

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Many infusions are given by gravity assisted, drip sets that give a flowrate dependent on the height of the reservoir above the patient, the length of the tubing, the bore of the IV cannula, the density and viscosity of the fluid being delivered, and the patient’s venous pressure. However there is an increasing tendency to use programmable volumetric intravenous pumps and syringe drivers to deliver intravenous anaesthesia, fluids, patient controlled analgesia, epidural infusions and other drugs. Not only are they programmable, but they can also be adjusted to give desired flowrates or volumes. Some infusion devices are powered only by gravity, but the flowrate is controlled by a photoelectric drip rate detector in conjunction with a microprocessor controlled drip occlusion device. Other infusion devices use a stepper motor to control the rate of infusion. A stepper motor is designed so that the rotation is by a fixed amount per supplied electrical pulse, independent of the mechanical load it is carrying. The pulses are controlled by a microprocessor in the pump and the rate of infusion is dependent on the stepper motor’s output. Syringe drivers are designed to use a range of syringe sizes and some require special delivery tubing. The flow is a continuous, pulsatile flow and accuracy is 2–5%. Some syringe drivers are driven by clockwork motors, others by a battery powered motor that is intermittently on and off, depending on required flowrate. The driving mechanism is usually by a screw threaded rod connected to the syringe plunger. Other syringe drivers use a stepper motor connected to the screw threaded rod. Care should be taken not to position the syringe driver above the patient’s venous cannula or the syringe may siphon a drug additional to that programmed on the driver, by virtue of the weight of the column of fluid in the tubing above the patient. Care should also be taken to avoid any bubbles in the syringe reaching the patient. Modern syringe drivers are usually sufficiently accurate over the desired range of infusion [Stokes et al. 1990]. However, there may be a delay before the drug is delivered to the patient as the parts attached to the syringe take up slack [O’Kelly et al. 1992].
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Martinho Simões, José A., and Manuel Minas da Piedade. "Titration Calorimetry." In Molecular Energetics. Oxford University Press, 2008. http://dx.doi.org/10.1093/oso/9780195133196.003.0015.

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Titration calorimetry is a method in which one reactant inside a calorimetric vessel is titrated with another delivered from a burette at a controlled rate. This technique has been adapted to a variety of calorimeters, notably of the isoperibol and heat flow types. The output of a titration calorimetric experiment is usually a plot of the temperature change or the heat flow associated with the reaction or physical interaction under study as a function of time or the amount of titrant added. A primary use of titration calorimetry is the determination of enthalpies of reaction in solution. The obtained results may of course lead to enthalpies of formation of compounds in the standard state by using appropriate thermodynamic cycles and auxiliary data, as described in chapter 8 for reaction-solution calorimetry. Moreover, when reactions are not quantitative, both the equilibrium constant and the enthalpy of reaction can often be determined from a single titration run. This also yields the corresponding ΔrGo and ΔrSo through equations 2.54 and 2.55. Extensive use has been made of titration calorimetry as an analytical tool. These applications, which are outside the scope of this book, have been covered in various reviews. The historical development of titration calorimetry has been addressed by Grime. The technique is credited to have been born in 1913, when Bell and Cowell used an apparatus consisting of a 200 cm3 Dewar vessel, a platinum stirrer, a thermometer graduated to tenths of degrees, and a volumetric burette to determine the end point of the titration of citric acid with ammonia from a plot of the observed temperature change against the volume of ammonia added. The capabilities of titration calorimetry have enormously evolved since then, and the accuracy limits of modern titration calorimeters are comparable to those obtained in conventional isoperibol or heat-flow instruments. The titration procedures described in the literature can be classified as continuous or incremental, depending on the mode of titrant addition. In the first case the titrant is continuously introduced in the reaction vessel at a programmed (not necessarily constant) rate during a run.
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Conference papers on the topic "Volumetric flow rate"

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Elgmati, A. R., R. E. Flori, and C. S. Kabir. "Analyzing Variable-Rate Flow in Volumetric Oil Reservoirs." In SPE Western North American and Rocky Mountain Joint Meeting. Society of Petroleum Engineers, 2014. http://dx.doi.org/10.2118/169498-ms.

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Allil, Alexandre, Alex Dante, Regina Celia da Silva Barros Allil, Cesar Cosenza Carvalho, and Marcelo Martins Werneck. "FBG-based sensor applied to volumetric flow rate measurements." In 2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC). IEEE, 2019. http://dx.doi.org/10.1109/imoc43827.2019.9317642.

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Abreu, Pedro A. L., Sebastian Y. C. Catunda, Flavio H. Vasconcelos, and Raimundo C. S. Freire. "Development of a volumetric meter for low gas flow rate." In 2011 IEEE International Instrumentation and Measurement Technology Conference (I2MTC). IEEE, 2011. http://dx.doi.org/10.1109/imtc.2011.5944199.

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Suryawanshi, Arati, and Atul Joshi. "Urine flow rate measurement based on volumetric pressure measurement principle." In 2012 1st International Symposium on Physics and Technology of Sensors (ISPTS). IEEE, 2012. http://dx.doi.org/10.1109/ispts.2012.6260961.

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Roy, Kaustav, Kritank Kalyan, Anuj Ashok, Vijayendra Shastri, and Rudra Pratap. "A Pmut Integrated Microfluidic System for Volumetric Flow Rate Sensing." In 2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers). IEEE, 2021. http://dx.doi.org/10.1109/transducers50396.2021.9495576.

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Konig, Sebastian, Michael R. Suriyah, and Thomas Leibfried. "Volumetric electrolyte flow rate control in vanadium redox flow batteries using a variable flow factor." In 2015 Sixth International Renewable Energy Congress (IREC). IEEE, 2015. http://dx.doi.org/10.1109/irec.2015.7110861.

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Wang, Baoliang, Yongfeng Fu, Zhiyao Huang, and Haiqing Li. "Volumetric flow rate measurement with capacitive electromagnetic flowmeter in oil-water two-phase flow." In 2010 IEEE Instrumentation & Measurement Technology Conference Proceedings. IEEE, 2010. http://dx.doi.org/10.1109/imtc.2010.5488001.

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Volz, Richard Franklin, Daniel L. Gysling, Douglas H. Loose, and Abhinav Rawat. "Accurate Volumetric Flow Rate and Density Based Water-Cut Measurement in Bubbly Liquid Hydrocarbon Flow." In SPE Annual Technical Conference and Exhibition. Society of Petroleum Engineers, 2006. http://dx.doi.org/10.2118/102962-ms.

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Pihl, Michael Johannes, Matthias Bo Stuart, Borislav Gueorguiev Tomov, Peter Moller Hanseny, Michael Bachmann Nielseny, and Jorgen Arendt Jensen. "In vivo three-dimensional velocity vector imaging and volumetric flow rate measurements." In 2013 IEEE International Ultrasonics Symposium (IUS). IEEE, 2013. http://dx.doi.org/10.1109/ultsym.2013.0019.

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Veeraragavan, Ananthanarayanan, Andrej Lenert, Salem Al-Dini, and Evelyn N. Wang. "Design of Volumetric Solar Flow Receivers." In ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels collocated with 3rd Joint US-European Fluids Engineering Summer Meeting. ASMEDC, 2010. http://dx.doi.org/10.1115/fedsm-icnmm2010-31001.

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The development of efficient solar thermal receivers has received significant interest for thermal energy to electrical power conversion and heating applications. Volumetric receivers, where the incoming solar radiation is absorbed in a fluid volume, have advantages over state-of-the-art surface absorbers owing to the reduced heat losses at the surface. To efficiently distribute and store the thermal energy in the volume, nanoparticles can be suspended in the liquid medium to scatter and absorb the incoming radiation. In such systems, however, compact models are needed to design and optimize the performance. In this paper, we present an analytical model that can be used to perform parametric studies to investigate the effect of heat loss, particle distribution, and flow rate on receiver efficiency. The analytical model was formulated by modeling the suspended nanoparticles as embedded heat sources. The heat equation was solved with the surface heat losses modeled using convective losses based on Newton’s law of cooling. The analytical solution provides a convenient tool to predict two-dimensional temperature profiles for a variety of heat loss and inlet fluid temperature conditions. The efficiency of the receiver is defined as the ratio of the amount of thermal energy transported by the fluid to the total incident solar energy. For very large lengths the thermal energy carried by the fluid reaches a maximum steady value as the amount of heat loss equals the incident solar energy. The model can be used to estimate the approximate receiver lengths required to achieve near peak bulk fluid temperature. The results from this study will help guide experimental design, as well as practical flow receivers for solar thermal systems. Predictions made on a channel of 1mm depth with a solar concentration of 1 show that there exists a maximum system efficiency of 0.3373 for a dimensionless receiver length of 1.66.
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