Academic literature on the topic 'Pump performance'

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Journal articles on the topic "Pump performance"

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Mrinal, KR, and Abdus Samad. "Performance prediction of kinetic and screw pumps delivering slurry." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 232, no. 7 (2018): 898–911. http://dx.doi.org/10.1177/0957650918760161.

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Transporting slurry is a difficult task and industries use a kinetic or centrifugal pump or a screw or progressive cavity pump to deliver it. On the other hand, approximation models can help predicting performance and avoiding the expensive experiments of pumps with slurries. In this work, bentonite-based slurries were prepared and pumped by a centrifugal pump and a progressive cavity pump. The experimental facilities were developed in-house and artificial neural network-based approximation models were developed to predict performances. The approximation models say that it can eliminate the expensive testing to draw performance curve a pump. The relative merits of the pumps show that the progressive cavity pump has a better capability to handle the slurries or high viscosity fluids.
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Ali Hikmet Akhmadov, Ali Hikmet Akhmadov, and Teymur Aghazadeh Teymur Aghazadeh. "POLYMER ADDITIVES IN THE COOLANT OF WATER-RING VACUUM PUMPS." ETM - Equipment, Technologies, Materials 11, no. 03 (2022): 39–44. http://dx.doi.org/10.36962/etm11032022-39.

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Practice shows that vacuum water ring pumps are widely used in industry. Such pumps are used in almost all areas of the oil industry, metallurgy, chemical industry, mechanical engineering, food industry, agriculture, pulp and paper industry, gas and many other areas. Taking into account all the above-mentioned areas of application, the question arises about increasing the service life and reliability of LCVs (liquid water ring pumps). This article provides a fundamental study of the theory of operation and performance of a liquid ring pump. Keywords: vacuum pump, theoretical model, coolant, foaming, cavitation, actual performance.
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Haque, M. A., M. D. Hussain, and M. A. Zaman. "On Farm Performance of Manual Pumps." Journal of Agricultural Machinery and Bioresources Engineering 3, no. 1 & 2 (1996): 19–26. http://dx.doi.org/10.61361/jambe.v.i12.58.

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This paper describes the on farm performances of three manually operated pumps widely used in Bangladesh namely, twin treadle pump, rower pump and No. 6 hand pump. Discharges from the treadle pump, rower pump and No. 6 hand pump at a head of 2.5 m were 0.66, 0.50 and 0.41 l/s respectively. Power input to the Rower pump and No. 6 Hand pump were 10% and 40% higher, respectively than that of the treadle pump at a head of 3.5 m. Treadle pump had the highest efficiency of 45% while the rower pump and the No. 6 hand pump had 38% and 25% efficiency, respectively. BCR values were 2.69, 1.83 and 1.17 respectively for the treadle pump, rower pump and No. 6 hand pump. The costs of lifting per m³ water were Tk. 6.46, Tk. 8.55 and Tk. 9.85 for the treadle, rower and No. 6 hand pump respectively. The overall performance of the twin treadle pump was better than rower and No. 6 hand pump up to a suction lift of 6 m. The No. 6 hand pump is not suitable for irrigation purpose because of its very low discharge and high power requirement.
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Ganushchak, Y., W. van Marken Lichtenbelt, T. van der Nagel, and D. S. de Jong. "Hydrodynamic performance and heat generation by centrifugal pumps." Perfusion 21, no. 6 (2006): 373–79. http://dx.doi.org/10.1177/0267659106074003.

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For over a century, centrifugal pumps (CP) have been used in various applications, from large industrial pumps to flow pumps for aquariums. However, the use of CP as blood pumps has a rather short history. Consequently, the hydraulic performance data for a blood CP are limited. The aim of our investigation was to study the hydraulic performance and the heat generation of three commercially available CP: Bio-Medicus Bio-Pump BP80 (Medtronic), Rotaflow (Jostra Medizintechnik), and DeltaStreamTM DP2 (MEDOS Medizintechnik AQ). The study was performed using a circuit primed with a water-glycerin mixture with a dynamic viscosity of 0.00272 pa/s. Pressure-flow curves were obtained by a stepwise stagnation of the pump outlet or inlet. The temperature changes were observed using ThermaCAM SC2000 (Flir Systems). The pumps’ performance in close to clinical conditions (‘operating region’) was analysed in this report. The ‘operating region’ in the case of the BP80 is positioned around the pressure-flow curve at a pump speed of 3000 rpm. In the case of the Rotaflow, the ‘operating region’ was between the pump pressure-flow curves at a speed of 3000 and 4000 rpm, and the DP2 was found between 7000 and 8000 rpm. The standard deviation of mean pressure through the pump was used to characterise the stability of the pump. In experiments with outlet stagnation, the BP80 demonstrated high negative association between flow and pressure variability (r=-0.68, p <0.001). In experiments with the DP2, this association was positive (r=-0.68, pB <0.001). All pumps demonstrated significantly higher variability of pressure in experiments with inlet stagnation in comparison to the experiments with outlet stagnation. The rise of relative temperature in the inlet of a pump was closely related to the flow rate. The heating of fluid was more pronounced in the ‘zero-flow’ mode, especially in experiments with inlet stagnation. In summary, (1) the ‘zero-flow’ regime, which is described in the manuals of some commercially-available pumps, is the use of the pump outside the allowable operating region. It is potentially dangerous and should, therefore, never be used in clinical settings. (2) Using centrifugal pumps for kinetic-assisted venous return can only be performed safely when the negative pressure at the inlet of the pump is monitored continuously. The maximum allowable negative pressure has to be defined for each type of pump, and must be based on pump performance.
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Sarsam, A.Gaade* M.M.Awad A.-R. Dohina W.M.El Awady. "THE PERFORMANCE OF HYBRID CENTRIFUGAL–JET PUMP." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 5, no. 11 (2016): 484–90. https://doi.org/10.5281/zenodo.168433.

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Pumps are considered the heart of any project includes fluid transportation or increasing of its pressure. For a long run, the piping pressure losses increases and the pump efficiency decreases which effect the system requirements of either discharge pressure of flow rate. A hybrid centrifugal-jet pump system is proposed in order to enhance the centrifugal pump performance to achieve the system requirements. The performance of the centrifugal and the proposed hybrid pumps are performed at a speed 2900 rpm for different ratios of centrifugal and jet pumps flow rates. The effect of the throat ratio (D/L) variation of the jet pump is also investigated at different ratios of D/L=0.33, 0.4, 0.5, 0.66. The obtained results show that the propose system increases the discharge head depending on the ratio of the jet and the centrifugal pumps flow rates. It found that the maximum increasing of the discharge head is about 43%. At the maximum flow rate ratio for all jet pump throat ratios. This means the variation of the jet pump throat ratio D/L has no observed effect on the hybrid system performance. Also the hybrid system map performance is also obtained at different throat ratio.
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Gavade, Ramesh S., and Suresh M. Sawant. "Study of Mechanical Performance Affecting Factors in Split Casing Pump." International Journal of Engineering and Advanced Technology 10, no. 2 (2020): 31–37. http://dx.doi.org/10.35940/ijeat.b1992.1210220.

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The need for better performance and higher comfort continually drive search for new features. In today’s applications, pumps are expected to continue continuously for a long time. So “operational reliability” is a key factor. The comprifugal pump is a fluid-carrying machine, with centrifugal energy produced by rotating air. Pumps are used for conveying fluids. Rotating power usually comes from an electric car, which is turned by the engine and the engine. There is a great demand for centrifugal pumps on the market. The construction is relatively inexpensive, durable and easy, and its high speed makes it possible to connect the pump directly to an unmatched car. The centrifugal pump provides a constant flow of fluid, and can be easily blown without causing damage to the pump. Pump reliability problems address a large amount of repair repairs and the cost of loss of access to chemical plants, refineries, and many electrical appliances. This paper describes the most common causes of pump failure, and how they can be avoided in most cases by using the appropriate types of analysis and procedure during the pump selection process. Specifically, key issues include where the pump will operate next to the best efficient point (BEP). Proper pump selection and installation avoid misalignment. This paper explains the various reasons for the failure of Split break pumps.
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Ramesh., S. Gavade, and M. Sawant Suresh. "Study of Mechanical Performance Affecting Factors in Split Casing Pump." International Journal of Engineering and Advanced Technology (IJEAT) 10, no. 2 (2020): 31–37. https://doi.org/10.35940/ijeat.B1992.1210220.

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The need for better performance and higher comfort continually drive search for new features. In today’s applications, pumps are expected to continue continuously for a long time. So “operational reliability” is a key factor. The comprifugal pump is a fluid-carrying machine, with centrifugal energy produced by rotating air. Pumps are used for conveying fluids. Rotating power usually comes from an electric car, which is turned by the engine and the engine. There is a great demand for centrifugal pumps on the market. The construction is relatively inexpensive, durable and easy, and its high speed makes it possible to connect the pump directly to an unmatched car. The centrifugal pump provides a constant flow of fluid, and can be easily blown without causing damage to the pump. Pump reliability problems address a large amount of repair repairs and the cost of loss of access to chemical plants, refineries, and many electrical appliances. This paper describes the most common causes of pump failure, and how they can be avoided in most cases by using the appropriate types of analysis and procedure during the pump selection process. Specifically, key issues include where the pump will operate next to the best efficient point (BEP). Proper pump selection and installation avoid misalignment. This paper explains the various reasons for the failure of Split break pumps.
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Ward, Peter R. B., William G. Dunford, and David L. Pulfrey. "Performance of small progressive cavity pumps with solar power." Canadian Journal of Civil Engineering 14, no. 2 (1987): 284–87. http://dx.doi.org/10.1139/l87-041.

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A small progressive cavity pump, rated at about 900 W, has been assembled and tested as part of a photovoltaic-cell-powered water pumping system. Torque-speed relationships for the progressive cavity pump, not readily available in published engineering journals, were measured and are presented. The pump was extremely well suited to lifting groundwater for small (domestic) supplies with solar power because it was capable of producing the full design head over a very wide range of speeds. In addition, the progressive cavity pump was robust, and unlike most other positive displacement pumps, would tolerate small concentrations of silt and sand in the water without damage. Very many of these pumps are already in use in parts of Africa and other developing areas, and excellent prospects exist for operating progressive cavity pumps with solar-energy-powered drives. Key words: pump, solar power, groundwater, water, water supply, solar, well, hydrology, hydraulic.
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Meakhail, T., and S. O. Park. "An improved theory for regenerative pump performance." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 219, no. 3 (2005): 213–22. http://dx.doi.org/10.1243/095765005x7565.

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Owing to their low specific speed, regenerative pumps allow high heads with small flow rates and have performance curves with very stable features. This kind of pump is also smaller and simpler to construct than the other equivalent volumetric pumps, although it has fairly low efficiency. Over the past few years, regenerative pumps have been subject to more interest in various industrial applications. Previous mathematical models do not describe the flow characteristics very well as they are based on simplified assumptions. An improved model is proposed in this paper for the pump performance. The model can handle one inlet angle and two exit angles for the impeller blades and it can be used for the design of twisted blades that would increase the pump head and efficiency. A new feature of the pump characteristics based on the proposed model is discussed. It is shown that the proposed model yield results that are in good agreements with the experimental results. The new model also shows that the side-blade exit angle has a major effect on the performance of regenerative pump, which has not been accounted for in the previous theory.
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Jilani, Aisyah, and Akhtar Razali. "Variable Speed Pump Performance Characteristics for Domestic Application." MATEC Web of Conferences 225 (2018): 02005. http://dx.doi.org/10.1051/matecconf/201822502005.

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Generally, water pumps work at a fixed speed. Structural resonance in fixed speed can cause vibration. The reason that most single speed pumps utilize an excessive amount of electricity is that they are overused and oversized. Therefore, this research is embarked to study the characteristic of a pressure-controlled variable speed pump, develop the variable speed pressure controlled pump and analyse the pump performance. A technique is proposed to change the constant speed pump to variable speed pump by adding Variable Frequency Drive (VFD) and microcontroller. A simple test rig is designed and fabricated represented of water distribution for domestic use. The method was then experimentally validated to verify the pump performance and energy used. Data for water flow rate, water pressure, power output and pump speed were analysed. Since the speed can be lowered until 29.27% which according to the water volume demands, therefore the power consumption was found decreased and the lowest power is 0.014 kW. Maximum water discharge capability is 32.38 lpm. It is found that, a variable speed water pump able to save energy up to 97% and led to electricity bill saving and increase the life span of pipes and joints through less hydraulic pressure built-up.
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Dissertations / Theses on the topic "Pump performance"

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White, Susan Jennifer. "Bubble pump design and performance." Thesis, Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/16914.

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Norrman, Marcus, and Felix Monthan. "Heat Pump Data Performance Analysis of Large Scale Ground Source Heat Pump Systems." Thesis, KTH, Energiteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-276072.

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This study aimed at refining and improving current methodology concerning large-scale heat pump performance. This study was performed on two large-scale ground source heat pumps located in Solna (Stockholm). These were connected to an aquifer thermal energy storage system which provided heating and cooling for two office buildings. The heat pumps had been equipped with preliminary sensors from the BMS (Building management system) and been in operation since 2016. In 2019, additional detailed measurement equipment from ClimaCheck was installed to collect comprehensive data from the heat pumps to allow a more comprehensive performance evaluation. This study was primarily performed by data pre-processing of the BMS-data and the ClimaCheck-data. Once this was done, the ClimaCheck parameters were backtracked and recalculated. Subsequently new models for system evaluation was implemented. The most desired parameter to replace in the ClimaCheck model was the mass flow rate, which they obtain though an energy balance over the compressors. The latter part of the study was to see whether the BMS had sufficient data to provide the same information as ClimaCheck. This was done by implementing a regression of the BMS-data, where the heating and cooling capacities from ClimaCheck were used as targets. The results from the study showed that implementing a mass flow rate based upon compressor efficiency instead of an assumed heat loss was difficult and only reliable for higher loads. When evaluating the ClimaCheck parameters, interesting results were found concerning their calculations for the heating capacity, which might not be calculated the way they express in their formulas. The regression from the BMS-data was proven difficult because of the insufficient and lacking data for some instances. Five different models were produced and compared, some models showed accuracy up to 95% depending on the desired metric. It can be concluded that it is possible to estimate the key performance indicators using the BMS-data. It yields good results for the COP’s and very accurate results for the SPF’s over a year. This makes it possible to evaluate the heat pump performance for years prior to the installation of the ClimaCheck system.<br>I den här studien analyseras metodiken för att bestämma prestandan hos industriella värmepumpar. Studien utfördes i Solna utanför Stockholm på ett värmepumpsystem som är kopplat till en grundvattenkälla. Systemet tillförde uppvärmning och kylning till tv˚a kontorsbyggnader. Systemet har varit i drift sedan 2016 och i samband med installation s˚a sattes sensorer upp f¨or att kontrollera systemet. Dessa sensorer ¨ar kopplade till bygnadernas BMS, som är utvecklat av Siemens. I början av 2019 anlitades företaget ClimaCheck för att installera ytterligare ett mätsystem, så att värmepumparnas prestanda kunde analyseras. Denna studie utfördes endast på värmepumparna som bara utgjorde en liten del av hela systemet. Till en början fokuserade studien på analys och databehandling av all data, både på datan från Siemens och ClimaCheck. Med hjålp av den uppmätta ClimaCheck-datan verifierades sedan ClimaChecks metod, genom att implementera ClimaChecks beräkningar i python. Detta gjordes primärt för att både kunna verifiera och sedan kunna implementera en möjlig förbättring i massflödet som ClimaCheck använder i sin modell. Sedan gjordes flera regressionsmodeller med BMS variabler, där targetvariablen sattes till antingen ClimaChecks beräknade värmeeffekt eller kyleffekt, beroende på vilken av dem som analyserades. Anledningen till detta var att BMS-datan inte innehåller de mätpunkter som krävs för att teoretiskt bestämma kapaciteterna. När det nya mass flödet introducerades blev resultatet inte önskvärt och den nya modellen var bara tillämpbar då värmepumparna gick på max effekt. När ClimaChecks beräkningar och parametrar återskapades hittades intressanta resultat angående värmekapaciteten. Den gick inte att återskapa med deras enthalpiberäkningar, utan den hittades istället med en annan metod. Regressionen som gjordes gav goda resultat om man bortser från vissa antaganden som gjorts. Regressionen kunde beroende på vilken parameter som efterfrågades ha en noggrannhet på upp till 95%. Studien visar att ClimaCheck har en bra och fungerande modell men den kan förbättras. Den tar även upp hur viktigt det är med data för att ordentligt och effektivt kunna utvärdera system. Slutligen kommer studien åskådliggöra en god metodik för hur data kan hanteras och tillämpas. Systemutvärdering är av yttersta vikt för att reducera energikostnader och många system skulle behöva utvärderas.
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Headley, F. Anthony Jr. "Performance limitations of an ejector heat pump." Thesis, Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/20290.

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Engin, Ertan. "Design, Construction And Performance Evaluation Of A Submersible Pump With Numerical Experimentation." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/12606532/index.pdf.

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Due to the increasing demand, nonclog type sewage pumps are designed and manufactured in large amounts all over the world. However, a methodology on the design of these special duty pumps is not encountered in the literature. Therefore, the manufacturers tend to develop their own empirical methodologies. In this thesis, a nonclog pump is designed and constructed on the basis of suitable approaches of known centrifugal pump design methods. In this frame, a nonclog type submersible pump that is capable of handling solids, up to a diameter of 80 mm is aimed to be designed. The designed pump delivers 100 l/s flow rate against a head of 24 m. The rotational speed of the pump is 1000 rpm. Design procedure and the important points that differ nonclog pump design from standard centrifugal pump designs are given. In addition, hydraulic characteristics of two nonclog pumps, one of which is the pump designed in this study, are investigated by means of computational fluid dynamics (CFD) code. The designed pump is manufactured and tested in Layne Bowler Pump Company Inc. The test result indicates that design point is reached with a deviation in the limits of the related standard. Wire to water total best efficiency obtained by the test is 60%. Close agreement between results of actual test and numerical experimentation performed by CFD code shows that CFD analysis is a quite useful tool in predicting the hydraulic characteristics of nonclog pumps. Moreover, the pump is tested at 750 rpm and the test results are found to be in good agreement with the similitude anaysis results.
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Wong, Yuen-wah, and 黃婉華. "Performance prediction model for a solar water pump." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31223722.

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Walmsley, Nigel. "The numerical representation of pump-turbine performance characteristics." Thesis, University of Warwick, 1986. http://wrap.warwick.ac.uk/36663/.

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This thesis investigates the hydraulic transient analysis of hydro-power plants with particular emphasis being placed on the turbine and pump-turbine boundary conditions. A lack of suitable data, in the form of the machine performance characteristics, during the early stages of a hydro-power station's development led to the investigation of alternative sources of performance characteristics, not based on the testing of a hydraulically similar model turbine. Two methods of obtaining turbine performance characteristics were developed, one based on the published performance characteristics of typical reaction turbines and the second based on performance characteristics from a turbine of similar specific speed. The problems particular to the unit parameter representation of four quadrant reversible pump-turbine performance characteristics for use in hydraulic transient analyses were investigated. A review of alternative forms of representation led to the solution of the pump-turbine boundary based on a modified unit parameter representation. The method reduces the multi-variable problem of the pump-turbine boundary condition to that of a single variable. The solution algorithm is equally successful for use with standard turbines. A computer program for the analysis of hydraulic transients in hydro-power plants was developed and comparisons with site recordings, taken during a full load rejection at a typical pumped storage scheme, made in order to verify the operation of the computer program. Further simulations demonstrate the combined boundary condition of turbine and relief valve.
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Wong, Yuen-wah. "Performance prediction model for a solar water pump /." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B21607424.

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Homer, C. J. "The modelling of pump performance in two-phase flow." Thesis, Open University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.377706.

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This work firstly reviews the experimental data for centrifugal pumps operating in steady-state and transient two-phase flow. The pump head and torque become degraded in two-phase pumping operation. This degradation becomes increasingly severe and abrupt as pump specific speed falls, and is chiefly due to the reduced impeller performance. Degradation depends primarily on specific speed and pump geometry, void fraction and flow coefficient. Degradation also depends on flow regime, fluid viscosity, flow rate and system pressure. The evidence suggests that transient pump performance can be accurately predicted by steady-state tests.A pseudo-two-dimensional analysis is then presented of two-phase flow through a centrifugal pump to predict the head and torque performance over the full range of operating conditions. The loss of performance in the impeller in pumping operation is caused by the large slip that develops between the two phases as the gas slows dramatically compared to the liquid, particularly in stratified flow. In these conditions there is little or no pressure recovery by diffusion in the pump casing, with further energy losses at the impeller exit due to flow impact against the casing.The head and torque performance predicted by the model compared favourably with the results from the single-phase and two-phase experimental pump tests. The comparisons cover all 4 quadrants of pump operation over the whole voidage range for a comprehensive range of pump designs and fluid mixtures. A number of recommendations are made to improve two-phase pump performance for industrial applications.
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Downham, S. E. "Modelling the two-phase performance of a centrifugal pump." Thesis, Cranfield University, 2000. http://dspace.lib.cranfield.ac.uk/handle/1826/11005.

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A review was carried out which revealed that no simple mathematical model was available which could be used to predict the performance of a centrifugal pump when it is operating under two phase flow conditions. Experimental analyses were carried out to aid the development of such a model. A rotating channel test rig was designed to study the structure of airwater flow through an impeller passageway. The observations generated a large amount of qualitative data. A full scale centrifugal pump was also tested which provided data that allowed the results of the rotating channel experiments to be considered in more quantitative terms. These two sets of experimental work allowed a conceptual model of the two phase flow through a centrifugal pump to be constructed. The model assumes that forces act on the bubbles as they pass through the impeller passageway because of the rotation and the curvature of the impeller passageway. These forces cause the bubbles to decelerate and coalesce creating a stationary air void which leads to a partial blockage of the channel. This causes the velocity of the fluid passing through the pump to be modified. The model uses a onedimensional velocity vector approach adjusted for hydraulic losses to calculate the head raised by the pump under such conditions. The model presented provides the basis upon which a predictive tool could be developed and used in the development engineering environment. Currently operational problems that arise because of two phase flow are often quantified using scaled hydraulic models, which are expensive, or within the actual application where costly engineering solutions may be required to give acceptable performance. A mathematical model is a much more cost effective tool and its application allows the engineer to decide whether system performance would be compromised by the two phase conditions encountered and propose possible solutions. In recommending the development of such a model it is necessary to consider where and how in the project cycle it should be used. A number of companies were canvassed and it was concluded that in many cases such models are used too late in the project cycle to provide maximum return. In the case of projects which include participants from a number of companies it is suggested that an inter-company team should be constructed if development models are to be widely used. This team should be used to plan and implement the use of development models efficiently and ensure that the data produced is communicated effectively and is of the maximum value to the participants.
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Semenzin, Clayton S. "Determination of Centrifugal Blood Pump Characteristics using CFD and Experimental Analysis." Thesis, Griffith University, 2021. http://hdl.handle.net/10072/401348.

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Background Cardiovascular diseases are the leading cause of death throughout the developed world, attributed to approximately 17.8 million deaths worldwide in 2017 with increasing prevalence due to the aging population. Cardiovascular diseases generally result in heart failure. While the best treatment option for heart failure patients is heart transplantation, there is a severe deficiency in the availability of donor hearts. Rotary Blood Pumps (RBPs) utilised as Ventricular Assist Devices (VADs) provide an alternative treatment option. These devices are small implantable pumps that support the failing heart by providing power to augment circulation. The development of RBPs generally begins with initial designs obtained using traditional pump design methods (such as that developed by Stepanoff). However, studies have shown that this approach produces RBP prototypes far from optimal in design. Traditional theory relies on design constants derived empirically for large industrial pumps and these do not scale down well when applied to the much smaller RBPs. The initial designs are therefore generally quite poor and require an iterative build-and-test approach to obtain suitable pump prototypes – a process that is expensive and time consuming. Therefore, by improving the methodology for obtaining initial designs to better reflect the final product, development time can be greatly reduced. A popular avenue for analysing the effect of design variations and to further develop early prototypes of RBPs is to employ Computational Fluid Dynamics (CFD) simulations. These numerical simulations provide detailed data regarding the flow fields within these devices. However, a range of simulation options is available, leading to a wide range of potential predictions. In an attempt to provide a benchmark case, the FDA presented a challenge in which a pump design and test conditions were defined, allowing for direct comparison amongst different simulation approaches from a number of labs/RBP developers. The purpose of this thesis was to produce a gross design tool to provide a good starting point in RBP prototyping and a CFD simulation approach for verification that can also be used as a design refinement tool. Methods Formulating a design method for pumps requires the generation of empirical data. A number of pump design variables was identified as having an impact on pump performance, and a large number of experimental tests would have been needed to test the influence of each. Instead, a Design of Experiments (DOE) was utilised to streamline the process. The DOE outputs a relatively small number of tests required to fit a statistical model. Each design specified by the DOE was examined experimentally using a custom-built automated pump test platform to generate a number of performance measures. The obtained results were used to formulate a Response Surface Method (RSM) statistical model that showed acceptable fit to the input data. Coupled with desirability functions, the RSM model allowed for design optimisation. This tool essentially replaces Stepanoff’s traditional design methodology. The RSM model provides a robust tool that allows the user flexibility in design optimisation goals. The FDA pump was investigated in this thesis and a wide variety of simulation approaches was examined to determine which was most accurate. A range of factors were considered which included: mesh density, interface position between the rotating and stationary zones, steady vs. transient simulations, discretisation schemes, time step size and choice of turbulence model. The most appropriate option from each investigative study was selected to determine a recommended simulation approach. Final simulations were performed using these recommendations and were compared to the FDA experimental results to confirm the suitability of the suggested settings. Determination of Centrifugal Blood Pump Characteristics using CFD and Experimental Analysis iii The statistical model developed was used to design two different impellers as validation test cases. The first impeller was designed to optimise the maximum efficiency, P – Q curve slope and efficiency consistency. The second impeller was designed to mimic the approach used in traditional design methods for RBPs in setting a target design point as the primary objective and the aforementioned factors (from the first impeller) as secondary objectives. These two case studies underwent statistical performance predictions, CFD simulations, PIV analysis and experimental hydraulic testing to validate the statistical and CFD models. Results From the initial CFD study, a hybrid SBES turbulence model with full transient simulation on a fine grid with small time steps proved to be the most suitable both in terms of pressure rise generated by the FDA pump and resulting velocity fields when compared to published experimental results. From these findings the CFD modelling strategy was established. CFD results for the two validation pumps showed pressure rises matching the experimental data (8% and 1% difference for each impeller) within an acceptable range (<10% from the mean). The simulated velocity fields also closely replicated the PIV data for the majority of the flow domain. The statistical performance predictions well reflected those measured experimentally with the majority of data points falling within its confidence intervals. The hydraulic results also supported the main goal of this thesis, whereby an impeller generated using the statistical model, operated far closer to the target design point than that of a blood pump designed following Stepanoff’s methodology. Overall, both the statistical model and CFD approach provided accurate predictions and the purpose of the thesis was achieved. Final Remarks The statistical and CFD models developed in this thesis yield an effective design tool and verification methodology and show improvement over the current traditional design methods and accuracy in simulated results. Ultimately, the utilisation of these tools will lead to a reduction in the development time for new RBPs and provide a good understanding of the flow dynamics within these pumps, leading to improved pump designs reaching patients sooner. These tools are readily generalizable and could be adopted as design tools now.<br>Thesis (PhD Doctorate)<br>Doctor of Philosophy (PhD)<br>School of Eng & Built Env<br>Science, Environment, Engineering and Technology<br>Full Text
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Books on the topic "Pump performance"

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Tinney, W. Stanley. Improving pump performance. McGraw-Hill, 1991.

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Japikse, David. Centrifugal pump design and performance. Concepts ETI, 1997.

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Ltd, CH2M Hill Engineering. Sump pump study. Alberta Municipal Affairs, Housing Division, 1991.

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M, Cohen Robert, Robert S. Kerr Environmental Research Laboratory., and Dynamac Corporation, eds. Methods for monitoring pump-and-treat performance. Robert S. Kerr Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, 1994.

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Chaudari, Shrirang Keshav. Performance studies on an absorption heat pump. University of Salford, 1985.

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Canada, Atomic Energy of. Reactor Coolant Pump Seals: Improving Their Performance. s.n, 1986.

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R, Addie G., GIW Industries, and Florida Institute of Phosphate Research., eds. Matrix pump performance evaluation while cavitating: Final report. The Institute, 2001.

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Walmsley, N. The numerical representation of pump-turbine performance characteristics. typescript, 1986.

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Neumann, B. The interaction between geometry and performance of a centrifugal pump. Mechanical Engineering Publications, 1991.

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Main Coolant Pump Workshop (4th 1991 Phoenix, Ariz.). Proceedings, Main Coolant Pump Workshop, 1991. EPRI, 1992.

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Book chapters on the topic "Pump performance"

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Verma, Subhash. "Pump Performance." In Math Problems in Water and Wastewater. CRC Press, 2024. http://dx.doi.org/10.1201/9781003468745-15.

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Yates, Maurice A. "Thermodynamically Based Pump Performance Monitoring." In Pump Technology. Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-662-38296-7_17.

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Grist, Edward. "Centrifugal Pump Performance Characteristics." In Cavitation And The Centrifugal Pump. Routledge, 2023. http://dx.doi.org/10.1201/9781315138923-3.

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Yedidiah, Sam. "Pump Performance at Reduced NPSH." In Centrifugal Pump User’s Guidebook. Springer US, 1996. http://dx.doi.org/10.1007/978-1-4613-1217-8_13.

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Yedidiah, Sam. "Performance Characteristics of Centrifugal Pumps." In Centrifugal Pump User’s Guidebook. Springer US, 1996. http://dx.doi.org/10.1007/978-1-4613-1217-8_2.

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Ballo, Andrea, Alfio Dario Grasso, and Gaetano Palumbo. "Integrated Charge Pump Basics." In High-Performance Integrated Charge Pumps. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-43597-3_1.

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Turton, R. K. "The Gas-Liquid Performance of a Centrifugal Pump: Priming Using the Shroud Reflux Method." In Pump Technology. Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-662-38296-7_9.

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Yedidiah, Sam. "Miscellaneous Factors that Affect Pump Performance." In Centrifugal Pump User’s Guidebook. Springer US, 1996. http://dx.doi.org/10.1007/978-1-4613-1217-8_11.

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Yedidiah, Sam. "Various Methods of Altering Pump Performance." In Centrifugal Pump User’s Guidebook. Springer US, 1996. http://dx.doi.org/10.1007/978-1-4613-1217-8_28.

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Gülich, Johann Friedrich. "Pump Types and Performance Data." In Centrifugal Pumps. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-40114-5_2.

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Conference papers on the topic "Pump performance"

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Bagnoli, D. L., J. J. Krupowicz, D. M. Kats, J. Ploetz, and J. L. Noga. "Pump Seal Bellows Performance in Refinery Applications." In CORROSION 1994. NACE International, 1994. https://doi.org/10.5006/c1994-94515.

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Abstract Recent stress corrosion cracking (SCC) experiences with AM-350 (UNS S35000) pump seal bellows in wet H2S service affected a critical review of bellows performance in refinery applications. The results of the review, including specific cases of cracking, are discussed in this paper. Results of NACE Standard TM0284-87 laboratory tests of common bellows materials using the low pH NACE Standard TM-01-77 solution also are reported. While AM-350 readily cracked in the tests, Alloy 718 (UNS N07718) exhibited resistance to SCC. A strategy for bellows replacement in refinery applications based on laboratory test results, field experience, and NACE Standard MR0175 material requirements is presented.
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Ruvalcaba, Mario Alberto, and Xiao Hu. "Gerotor Fuel Pump Performance and Leakage Study." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-62226.

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Gerotor pumps are utilized in a number of automotive applications such as fuel lift. Volumetric efficiency and leakage are causes of concern in gerotor pumps. To optimize pump performance and reduce leakage, it is fundamental to comprehend the fluid dynamics inside the pump passageways. In this paper, a three-dimensional CFD methodology has been developed and applied to predict the pump performance, to understand pump flow dynamics and to investigate pump leakage for gerotor pumps equipped in automotive fuel systems. The methodology is based in the commercial code ANSYS FLUENT and the analytical focal points are the pump performance and leakage over a range of motor speeds and output pressures, 4000 RPM and 5400 RPM, also 450 kPa and 600 kPa. The CFD results are first contrasted with the experimental data and a very good agreement has been achieved. Extensive CFD simulations are then conducted to study the effect of the tip clearance on pump flow performance and leakage.
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Mauck, Lisa D., William S. Oates, and Christopher S. Lynch. "Piezoelectric hydraulic pump performance." In SPIE's 8th Annual International Symposium on Smart Structures and Materials, edited by Anna-Maria R. McGowan. SPIE, 2001. http://dx.doi.org/10.1117/12.429662.

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Williams, Logan T. "Methodology for the Evaluation of Gear Pump Performance." In BATH/ASME 2020 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/fpmc2020-2763.

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Abstract Currently, most performance curves of gear pumps present volumetric efficiency as a function of one or more operating conditions. However, the nature of gear pumps is that volumetric efficiency is dependent on pump speed, pump pressure rise, and fluid viscosity. This dependency on multiple parameters impedes direct comparisons between pumps tested at disparate operating conditions or on different testbeds. A new method has been developed that formulates the volumetric efficiency as a function of a single parameter that captures pump speed, pressure, and fluid viscosity. The characteristics of the pump is then captured by curve fitting two constants to empirical data. This method allows extrapolation of pump performance beyond empirical data and direct comparison of the volumetric efficiency curves of two pumps tested under disparate conditions within a single plot. This work describes the analytical derivation of the methodology and the empirical data used for validations. Additionally, several possible applications of this method are presented.
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Sibley, Lewis, and Bala R. Nair. "Commercial Spool Pump Bearing Performance Testing." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-63282.

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Canned motor pumps have been used for decades in nuclear power systems to eliminate seal leakage by using water coolant lubricated hydrodynamic bearings. Other process fluids like pressurized hazardous propylene also need such pumps. Hydrodynamic propylene bearings run with high-loss turbulent flow, which requires high cooling flow that is not available. Therefore, an alternative, almost frictionless, bearing system has been tested successfully for propylene and similar process fluid canned motor Spool Pumps™. This innovative double-row hybrid-ceramic ball bearing uses patented AEROFLOAT® design cages to reduce ball/raceway lubricant film shear stresses and patented solid-lubricant supply components called RINGLUBE®, thus eliminating the need for any external lubrication. After accelerated life testing for the equivalent of almost two months of continuous pump service, there was so little wear on the ball tracks and the RINGLUBE® that the projected continuous pump service life is likely 10 to 20 years.
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Best, G., R. J. Delaloye, B. L. Nicholson, and W. B. Morrow. "Geared Centrifugal Pump Performance in an Enhanced Oil Recovery Field." In SPE Electric Submersible Pump Symposium. Society of Petroleum Engineers, 2017. http://dx.doi.org/10.2118/185131-ms.

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do Rego, Antônio José Carreiro, Rafael Lazzaretti, and Alexsander Gonçalves Lopes. "Performance optimization of the jet pump in fuel pump modules." In 2006 SAE Brasil Congress and Exhibit. SAE International, 2006. http://dx.doi.org/10.4271/2006-01-2687.

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Tatebayashi, Yasushi, Kazuhiro Tanaka, and Toshio Kobayashi. "Pump Performance Improvement by Restraining Back Flow in Screw-Type Centrifugal Pump." In ASME 2005 Fluids Engineering Division Summer Meeting. ASMEDC, 2005. http://dx.doi.org/10.1115/fedsm2005-77138.

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The authors have been investigating the various characteristics of screw-type centrifugal pumps, such as pressure fluctuations in impellers, flow patterns in volute casings, and pump performance in air-water two-phase flow conditions. During these investigations, numerical results of our investigations made it clear that three back flow regions existed in this type of pump. Among these, the back flow from the volute casing toward the impeller outlet was the most influential on the pump performance. Thus the most important factor to achieve higher pump performance was to reduce the influence of this back flow. One simple method was proposed to obtain the restraint of back flow and so as to improve the pump performance. This method was to set up a Ring-like wall at the suction cover casing between the impeller outlet and the volute casing. Its effects on the flow pattern and the pump performance have been discussed and clarified to compare the calculated results with experimental results done under two conditions — namely, one with and one without this Ring-type wall. The influence of wall’s height on the pump head was investigated by numerical simulations. In addition, the difference due to the wall’s effect was clarified to compare its effects on two kinds of volute casing. From the results obtained it can be said that restraining the back flow of such pumps was very important to achieve higher pump performance. Furthermore, another method was suggested to restrain back-flow effectively. This method was to attach a wall at the trailing edge of impeller. This method was very useful for avoiding the congestion of solids because this wall was smaller than that used in the first method. The influence of these factors on the pump performance was also discussed by comparing simulated calculations with actual experiments.
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Humphrey, Amie M., Ludwig C. Haber, James M. Smith, and James N. Wiggin. "Debris Laden Backwash Pump Performance Evaluation." In ASME 2011 Power Conference collocated with JSME ICOPE 2011. ASMEDC, 2011. http://dx.doi.org/10.1115/power2011-55227.

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McGuire Nuclear Station and Alden Research Laboratory recently completed an extensive computational and experimental study characterizing the operating fluid mechanics and debris clean-out behavior of a rotating-drum strainer. The strainers are used in the plant for raw water (RN) and are installed on the suction side of the RN system pumps. The study served a twofold purpose. The first part of the study identified the requirements for flow withdrawal from the strainer to ensure adequate cleaning performance. It also identified the maximum debris loading rate at which the strainer could reject debris into the outlet channel [1]. The findings defined input to the second part of the study, the backwash pump performance evaluation, which is the focus of this paper. The backwash pumps will be installed to backwash the strainers with performance requirements based on the results of part one of the study. MPR Associates joined the effort to evaluate different pumps for performance under normal operating and design basis conditions. A test loop was constructed that allowed controlled debris injection at atmospheric and vacuum conditions. Vacuum condition performance is required since some operating conditions generate pressures inside the strainer near 9 ft abs. This paper summarizes the performance differences by pump type and discusses the characteristics of debris-laden performance relative to standard performance and the influence of degraded conditions on debris handling.
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Chung, Kyung-Nam, Yang-Ik Kim, Hwan-Sik Gong, and Sang-Chul Kim. "Performance Improvement of Vertical Pumps Using CFD." In ASME/JSME 2007 5th Joint Fluids Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/fedsm2007-37537.

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In this study performance of two vertical pumps has been improved by using CFD. The first pump is a vaporization sea-water pump which has 6 blade impeller and the specific speed of about 410. The second one is the cargo pump of a chemical product carrier. This pump is a submersible pump operating near the bottom of the cargo hold and has the specific speed of about 210. In order to get higher efficiency, the flow fields of the initial models of the pumps are simulated, and design directions are obtained by analyzing the flow fields. NPSH required values are also calculated to know whether the design models have good cavitation performance or not. Satisfactory results are obtained for the design models.
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Reports on the topic "Pump performance"

1

Robinett, Fred. PR-471-14207-R01 Development of Field Pump Performance Testing Procedure. Pipeline Research Council International, Inc. (PRCI), 2015. http://dx.doi.org/10.55274/r0010037.

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Performance testing pumps in the field can be challenging and even more complicated when the pump is in crude oil pipeline service. Pumps installed in crude oil pipelines normally do not meet the basic requirements set forth in typical pump testing standards, additionally crude oil fluid properties are irregular, thus making it difficult to obtain the desired accuracy for proper evaluation and comparison to factory tests. All inconsistencies need to be evaluated and reconciled to successfully field performance test pumps pumping viscous fluid. The objective of this project is to develop a practical field test procedure that can be applied to large high volume centrifugal pumps in pipelines transporting viscous fluids, specifically crude oil. There are many variables affecting field performance testing of crude oil pipeline pumps making it nearly impossible to fully analyze all possible combination of test measurements. The field pump performance test procedure provides practical guidance to assess the potential uncertainty of the measurements and making sensible corrections. Using the field testing procedure actual pump viscous performances can be measured and the results used to validate performances measured during factory tests on water and corrected for viscosity per the Hydraulic Institute (HI) 9.6.7, "Effects of Liquid Viscosity on Rotordynamic Pump Performance". The long term goal is to utilize the measured viscous performances using the field pump performance testing procedure to either validate or improve the current correlations between pump water performance and viscous performance set forth by HI, which are principally based on smaller pump tests. By assuring the viscous corrections are correct the pump and drive system sizing may be optimized.
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Robinett, Fred. PR-471-14207-Z03 Evaluation of Field Pump Performance Testing Procedure. Pipeline Research Council International, Inc. (PRCI), 2019. http://dx.doi.org/10.55274/r0011616.

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In situ pump performance testing was performed at the TransCanada pipeline Monitor station in Alberta Canada and Liebenthal station in Saskatchewan Canada in accordance with the Field Pump Performance Testing Procedure (PRCI report PR-471-14207-R01). Testing at the Monitor station was performed by Sulzer with two different batches of crude oil with slightly different viscosities and densities. Because of the pipeline operation limitations the flow could not be varied appreciably, however the flow points were near the pumps bep flow and therefore believed to be beneficial. To help validate field pump performance testing techniques measurements were taken using two methods to measure flow and two to measure pump power-in. Testing at the Liebenthal station was performed by TransCanada personnel on one fixed speed and one variable speed unit. All testing was performed with one batch of crude oil. The fixed speed unit power was measured with electrical power to the motor and the variable speed unit power was measured with a torque meter and electrical power. A full description of the Excel sheets used to calculate the field pump performance and the factory test data corrected to field conditions is made. The spreadsheet is included with this report. This work will benefit the liquids pipeline operators by validating the field test procedure, thereby providing assurance and acceptance of the methods. Using these field pump performance testing methods on additional pumps will help populate the database of measured viscous pump performances. This data can then be used to further improve the Hydraulic Institutes viscous correction calculations. Additionally, improved field pump performance measurements will allow the pipeline users to optimize their pipeline operation.
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Wilcox. PR-015-09209-R01 Test Facility for Pump Performance Characterization in Viscous Fluids - Phase I. Pipeline Research Council International, Inc. (PRCI), 2010. http://dx.doi.org/10.55274/r0010713.

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In the liquids pipeline industry, large horsepower and flow pumps are used to transport liquid along the pipeline. When these pumps are purchased, they are performance tested with water. Performance tests are also sometimes conducted after a pump has been in operation for some time. The performance of a pump is different with water than with a viscous fluid (crude oil). Therefore, the performance results with water are corrected for viscosity. The Hydraulic Institute (HI) developed viscosity correction factors which are used to correct the pipeline pump performance results. These correction factors are based on test results with pump head and flows up to 430 ft and 1140 gpm, respectively. Pipeline size pumps easily have flows in the range of 10,000 to 50,000 gpm. The correction factors used for pipeline size pumps were derived from the HI lower flow and head correction factors. Therefore, the correction factors have an unknown error for larger flow and head pumps.
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Giannoulakis, Stylianos, and Arrigo Beretta. PR-471-18210-R01 Pump Failure and Performance Degradation Prediction. Pipeline Research Council International, Inc. (PRCI), 2020. http://dx.doi.org/10.55274/r0011801.

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Sulzer Pumps Incorporation is performing fundamental research for developing an early pump failure prediction method, for better supporting its customers. Target is to protect critical equipment and reduce unplanned outages. This effort focuses on combining modern machine learning anomaly detection techniques with pump physical know-how. The developed approach was tested with real life failure datasets, provided by Pipeline Research Council International members. In addition, a performance degradation technique was inspired by anomaly detection learnings and tested at this project.
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Cheng, David. PR-559-15210-R01 Piping Effect on the Performance Reliability and Integrity of Pumps. Pipeline Research Council International, Inc. (PRCI), 2019. http://dx.doi.org/10.55274/r0011572.

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The study focuses on the identification and evaluation of aspects affecting pipeline pump performance related to the suction and discharge piping layouts. The study was conducted through a literature review and survey interviews with pipeline operators and equipment manufacturers. This report provides results of the literature review and a survey of publicly available information concerning the best practices for piping layout design at pipeline pump stations. The study is limited to pipeline centrifugal pumps. Specifically, this review considers API type BB 1, 2, and 3 and API VS 6 and 7 pumps. The pumps considered are single suction, double suction, single and multiple stage pumps.
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Wilcox and Musgrove. L52359 Pump Test Facility Characterization Study. Pipeline Research Council International, Inc. (PRCI), 2011. http://dx.doi.org/10.55274/r0010012.

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Due to the uncertainty in the viscosity correction factors pumps can be over or under-sized. The error in the correction factors is not known, since tests have not been completed to verify the performance of pumps at the higher flows and heads. Currently, there is no test facility in existence which can complete the tests required to determine the true performance of a pump at high flows with viscous fluids. This initiative assesses what would be required for the development of a facility which could complete performance tests of pumps of varying sizes with high flow rates, high heads, and high viscosities. This effort included developing a basic design of a pump test facility and estimating how much it would cost to build such a facility. Two facility designs are proposed: an open loop and a closed looped design. Each design has distinct advantages and disadvantages which are outlined in this report.
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Dean, Jesse D., Anoop Honnekeri, and Greg Barker. High Performance Circulator Pump Demonstration. Office of Scientific and Technical Information (OSTI), 2018. http://dx.doi.org/10.2172/1475130.

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Robinett, Fred. PR-471-16206-R01 Suction Piping Effect on Pump Performance Testing. Pipeline Research Council International, Inc. (PRCI), 2019. http://dx.doi.org/10.55274/r0011577.

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Pump suction piping testing was performed to measure the influence on pump performance and mechanical operation, and also provide a benchmark for comparing, verifying and improving CFD modeling techniques. Testing was performed in Sulzer's pump test laboratory, in Winterthur Switzerland, using a single stage double suction model pump a with similar specific speed and design as used in many crude oil pipeline installations. Testing included a baseline test with a straight pipe with a flow straightener at the pump suction and two arrangements with pipe elbows directly at the pump suction. All tests were performed with mineral oil at viscosities ranging from 90 to 500 cSt. Pump performance as well as several static and dynamic measurements were taken, including static pressure measurements along the suction pipe, dynamic pressure measurements at the pump suction and discharge, pump axial thrust and displacements and pump torque. The tests with elbows at the pump suction are compared to the baseline test results. This work will benefit the liquids pipeline station designers and operators and also CFD analysts by providing actual tested comparisons and benchmark measurements.
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Carruth, William. Evaluation of venturi pump blower attachment prototype. Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/47580.

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The US Air Force Civil Engineer Center (AFCEC) tasked the US Army Engineer Research and Development Center (ERDC) with (1) developing a prototype venturi pump blower attachment for removing standing water from open excavations and (2) comparing its performance to that of traditional pumps. This technical note summarizes testing conducted as a part of the development of the prototype and provides analysis and conclusions based on the results.
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Johra, Hicham. Performance overview of caloric heat pumps: magnetocaloric, elastocaloric, electrocaloric and barocaloric systems. Department of the Built Environment, Aalborg University, 2022. http://dx.doi.org/10.54337/aau467469997.

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Heat pumps are an excellent solution to supply heating and cooling for indoor space conditioning and domestic hot water production. Conventional heat pumps are typically electrically driven and operate with a vapour-compression thermodynamic cycle of refrigerant fluid to transfer heat from a cold source to a warmer sink. This mature technology is cost-effective and achieves appreciable coefficients of performance (COP). The heat pump market demand is driven up by the urge to improve the energy efficiency of building heating systems coupled with the increase of global cooling needs for air-conditioning. Unfortunately, the refrigerants used in current conventional heat pumps can have a large greenhouse or ozone-depletion effect. Alternative gaseous refrigerants have been identified but they present some issues regarding toxicity, flammability, explosivity, low energy efficiency or high cost. However, several non-vapour-compression heat pump technologies have been invented and could be promising alternatives to conventional systems, with potential for higher COP and without the aforementioned refrigerant drawbacks. Among those, the systems based on the so-called “caloric effects” of solid-state refrigerants are gaining large attention. These caloric effects are characterized by a phase transition varying entropy in the material, resulting in a large adiabatic temperature change. This phase transition is induced by a variation of a specific external field applied to the solid refrigerant. Therefore, the magnetocaloric, elastocaloric, electrocaloric and barocaloric effects are adiabatic temperature changes in specific materials when varying the magnetic field, uniaxial mechanical stress, electrical field or hydrostatic pressure, respectively. Heat pump cycle can be built from these caloric effects and several heating/cooling prototypes were developed and tested over the last few decades. Although not a mature technology yet, some of these caloric systems are well suited to become new efficient and sustainable solutions for indoor space conditioning and domestic hot water production. This technical report (and the paper to which this report is supplementary materials) aims to raise awareness in the building community about these innovative caloric systems. It sheds some light on the recent progress in that field and compares the performance of caloric systems with that of conventional vapour-compression heat pumps for building applications.
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