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Journal articles on the topic 'Pump parameters'

Author: Grafiati

Published: 28 June 2021

Last updated: 29 July 2025

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1

Rogovyi, Andrii, Mariia Kostiuk, and Andrii Azarov. "IMPROVING ENERGY PARAMETERS OF OIL JET PUMPS." Bulletin of the National Technical University "KhPI". Series: Hydraulic machines and hydraulic units, no. 1 (November 14, 2022): 25–32. http://dx.doi.org/10.20998/2411-3441.2022.1.04.

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The difficulty of extracting oil from great depths due to the huge amounts of sand, water and other impurities has led to the fact that well jet oil pumps are becoming more common. Their use in oil production is facilitated by such factors as practical insensitivity to the content of gas and other impurities dissolved in oil compared to other types of pumps; simplicity of design and the absence of moving parts, which is inherent in all jet technology. The reliability and durability of jet pumps are an order of magnitude higher than those of any other pumps used in oil and gas production. Obtai

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2

Kafiatullin, Rashid. "Evaluation method for energy parameters and energy saving potential of oil reservoir pressure maintenance pumps operating beyond permissible limits." Energy Safety and Energy Economy 6 (December 2021): 35–38. http://dx.doi.org/10.18635/2071-2219-2021-6-35-38.

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Oil reservoir pressure maintenance pumps are often pushed to operate significantly outside of their original design parameters. This can cause operating problems which impact their reliability and efficiency. The author offers the evaluation methodology for energy parameters and energy saving potential of oil reservoir pressure maintenance pumps in order to develop major pump parameters like efficiency, pressure, and specific electric power. The methodology was tested on 42 pump units. The values of variations of basic parameters indicate the energy saving potential of pump units.

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3

Othman, N., N. S. Mohd Shah, K. G. Tay, N. A. Cholan, and R. Talib. "The effect of pump parameters on dual-pump fiber optical parametric amplifier." MATEC Web of Conferences 150 (2018): 01010. http://dx.doi.org/10.1051/matecconf/201815001010.

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The impact of pump parameters on dual-pump (2-P) fiber optical parametric amplifier (FOPA) is investigated. The four-wave model of coupled amplitude equations with fiber losses and pump depletion are solved numerically for the calculation of the parametric gain. Simulation results indicate that an increase in pump powers does not only enhances the parametric gain but also flattening the amplification bandwidth. Moreover, separating the pumps wavelengths further from each other can also improve the flatness of the bandwidth. Besides that, the parametric gain flatness can be improved when the se

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4

Sun, Xiaoyan, Rensheng Zhu, Jiangjie Wang, and Yuan Li. "Effect analysis of centrifugal pump parameters optimization design on performance." Journal of Physics: Conference Series 2599, no. 1 (2023): 012034. http://dx.doi.org/10.1088/1742-6596/2599/1/012034.

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Abstract Under the background of energy-saving priority and efficient use of energy, centrifugal pump, as a kind of energy conversion equipment in modern industry and agriculture with liquid as the medium, plays an important role in many occasions. Optimization of performance parameters of centrifugal pump can improve efficiency and save energy. Important parameters include the number of blades and structural optimization of blade tail, etc. These parameters are often selected according to experience in actual production, which lacks accuracy and persuasiveness. The influence of different blad

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5

Jia, Xia, Hualin Liao, Qiangfa Hu, Yuhang He, Yifan Wang, and Wenlong Niu. "Optimization Method of Jet Pump Process Parameters and Experimental Study on Optimal Parameter Combinations." Processes 11, no. 10 (2023): 2841. http://dx.doi.org/10.3390/pr11102841.

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The performance of jet pumps depends significantly on their structural and operational parameters. Current research primarily concentrates on theoretical models and laboratory tests, with limited experimental investigations and comprehensive reports concerning jet pump performance under various parameter combinations. In this study, we take a comprehensive approach, integrating both experimental and theoretical methods to assess jet pump performance under optimized process parameters and sand-flushing capabilities. The key findings of this study are as follows: While the characteristic and eff

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6

Bostan, Viorel, Andrei Petco, and Ion Șaragov. "EMPIRICAL MODELS’ APPLICABILITY FOR CALCULATING THE CENTRIFUGAL PUMP'S IMPELLERS GEOMETRIC PARAMETERS." JOURNAL OF ENGINEERING SCIENCE 30, no. 4 (2024): 8–19. http://dx.doi.org/10.52326/jes.utm.2023.30(4).01.

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This paper deals with the comparison of empirical computational models used to achieve the geometrical parameters of pumps impellers with models based on Computational Fluid Dynamics (CFD) simulations and optimization algorithms. Also, the actuality of the empirical models application in modern pump manufacturing industry is analyzed. Further, an empirical model for calculating the pump impeller geometrical parameters was presented. Applying this model, the calculation of the centrifugal pump impeller parameters for CH 6,3/20 1,1-2 canned motor pump was performed. The procedure for parameteriz

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7

Bostan, Viorel, Andrei Petco, and Ion Șaragov. "Empirical models' applicability for calculating the centrifugal pump's impellers geometric parameters." Journal of Engineering Science 30, no. 4 (2023): 8–19. https://doi.org/10.52326/jes.utm.2023.30(4).01.

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This paper deals with the comparison of empirical computational models used to achieve the geometrical parameters of pumps impellers with models based on Computational Fluid Dynamics (CFD) simulations and optimization algorithms. Also, the actuality of the empirical models application in modern pump manufacturing industry is analyzed. Further, an empirical model for calculating the pump impeller geometrical parameters was presented. Applying this model, the calculation of the centrifugal pump impeller parameters for CH 6,3/20 1,1-2 canned motor pump was performed. The procedure for parameteriz

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8

Pourtaghi, Adel, and Heidar Pouladi. "Numerical Investigation of The Effect of The Number of Blades of The Impeller On The Performance of Centrifugal Pumps." Mapta Journal of Mechanical and Industrial Engineering (MJMIE) 2, no. 1 (2018): 1–7. http://dx.doi.org/10.33544/mjmie.v2i1.41.

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A centrifugal pump is a pump which uses a rotating impeller for increasing the pressure of a fluid. Fluid flows to pump from the impellers hole and get accelerated by it and flows toward the volute fast from where enters to the outlet of the pump. Having enough knowledge in the field of geometrical parameters has a great effect on improving the designing and making this kind of pumps. The present study intends to take a small step in this field by evaluation of the effect of mentioned parameters and simulation of fluid current in inside the pumps. For reaching to this goal different number of

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9

Szulc, Przemysław, Janusz Skrzypacz, and Witold Lorenz. "Experimental Study of the Influence of the Geometrical Parameters of the Radial Labyrinth Pump on the Pump’s Operating Parameters and Performance." Energies 16, no. 13 (2023): 5158. http://dx.doi.org/10.3390/en16135158.

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Centrifugal pumps are the most common machines responsible for the increase in hydraulic energy in a piping system. Their proper design, operation, and maintenance have a strong influence on the performance of technological processes carried out in many industrial units. For the ultra-low specific speed (nq < 10) application, there is no economical reason for these pumps to be used. This is caused by an increase in internal losses in the pump. The article concerns the problem of the hydraulic operation of a new type of labyrinth pump—the radial labyrinth pump (RLP), which is a developed axi

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10

Luntungan, Hengky, Stenly Tangkuman, and Benny Lokombanua Maluegha. "Analysis of Spiral Pump Head Based on Water Wheel Parameters." International Journal of Applied Sciences and Smart Technologies 7, no. 1 (2025): 159–68. https://doi.org/10.24071/ijasst.v7i1.10383.

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Water supply is a crucial factor for farmers in managing agricultural land, especially those relying on river water sources. The lower position of rivers and the considerable distance from the fields often pose challenges, making water pumps powered by electricity or fuel a common choice, despite their high operational costs. To address this issue, the utilization of renewable energy through the use of a spiral pump powered by a water wheel is proposed. The spiral pump is considered an environmentally friendly technology as it does not require electricity or fossil fuels. This study aims to an

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11

Yang, Wei-Bo, Jian Zhou, Wei-Hu Xiao, et al. "Effect of Conical Spiral Flow Channel and Impeller Parameters on Flow Field and Hemolysis Performance of an Axial Magnetic Blood Pump." Processes 10, no. 5 (2022): 853. http://dx.doi.org/10.3390/pr10050853.

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For a blood pump, the blood flow channel and impeller parameters directly affect the performance of the pump and the resulting blood circulation. The flow channel in particular has a great impact on the hydraulic performance of the pump (e.g., flow and pressure), which directly determines the overall performance of the blood pump. Traditional bearing-supported blood pumps can cause mechanical damage to blood cells, leading to hemolysis and thrombosis. In this study, therefore, we designed a conical spiral axial blood pump with magnetic levitation. The blood pump was supported by electrodynamic

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12

Peng, Cancan, Xiaodong Zhang, Yongqiang Chen, Yan Gong, Hedong Li, and Shaoxiong Huang. "A Method for the Integrated Optimal Design of Multiphase Pump Based on the Sparse Grid Model." Processes 10, no. 7 (2022): 1317. http://dx.doi.org/10.3390/pr10071317.

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Multiphase pumps are used as an important tool for natural gas hydrate extraction owing to their excellent gas–liquid mixing and transport properties. This paper proposes an adaptive response surface-based integrated optimization design method. A model pump is designed based on the axial flow pump design theory. The model pump is numerically simulated and analyzed to obtain its performance parameters. Then the structural and performance parameters of the pump are parameterized to establish a closed-loop input–output system. Based on this closed-loop system, a sensitivity analysis is performed

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13

Zhang, Bowen, Li Cheng, Chunlei Xu, and Mo Wang. "The Influence of Geometric Parameters of Pump Installation on the Hydraulic Performance of a Prefabricated Pumping Station." Energies 14, no. 4 (2021): 1039. http://dx.doi.org/10.3390/en14041039.

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A prefabricated pumping station is a new type of pumping station that plays an important role in the construction of sponge cities in developing countries. It solves the problem of urban water-logging and makes great contributions to the sustainable development of water resources. In order to research the influence of different installation positions of pumps on the internal hydraulic performance of a prefabricated pumping station, based on ANSYS software, the computational fluid dynamics (CFD) numerical simulation method was used to analyze the internal flow state of the prefabricated pump st

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14

Dubei, O. Ya. "The Influence of the Jet Pump Geometry on its Main Technological Parameters." Prospecting and Development of Oil and Gas Fields, no. 4(73) (December 30, 2019): 24–34. http://dx.doi.org/10.31471/1993-9973-2019-4(73)-24-34.

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In order to test the operational efficiency of jet pumps which are installed at different depths in artificial lift-ed oil wells, it is necessary to establish the relation between their geometry and the maximum achievable operat-ing parameters. For this purpose, a series of experimental laboratory studies is conducted. Their main task is to identify the optimal parameters of a jet pump that works with gas-liquid flows. In the experimental setup, the fluid is supplied by an electric centrifugal pump and the air is injected by a compressor. The setup provides the possibility to regulate the flui

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15

Alamelu, J. V., and A. Mythili. "Evaluation of medical grade infusion pump parameters using Gaussian Process Regression." EAI Endorsed Transactions on Pervasive Health and Technology 8, no. 5 (2022): e3. http://dx.doi.org/10.4108/eetpht.v8i5.3171.

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Prediction techniques are extensively used in medical applications and health devices. The prediction of the infusion flow rate and its speed in a smart wireless infusion pump is necessary to provide precise drug flow. This paper has developed the prediction model to predict the lag time and infusion pump speed using the Gaussian process regression (GPR) technique with a squared exponential kernel. The present smart wireless infusion pump is usually incorporated with its smart drug library. The required parameters such as drug dosage, drug flow rate are utilized as inputs to predict the pump s

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16

Demikhov, K. E., and A. A. Ochkov. "On the Method of Calculating Diffusion Vacuum Pump Stage Pumping Parameters." Herald of the Bauman Moscow State Technical University. Series Mechanical Engineering, no. 2 (137) (June 2021): 85–93. http://dx.doi.org/10.18698/0236-3941-2021-2-85-93.

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At present, steam jet vacuum pumps are widely used in various fields of science and technology due to a number of advantages, e.g., reliability, relative simplicity of design, and manufacturability, over other pumping means. The paper analyzes the existing mathematical models of working processes, methods for calculating the pumping parameters of steam-jet vacuum pumps. The problem of improving these methods, which are used in the design, is still urgent. The study attempts to further develop the models in order to increase their practical significance for the pumps design: in particular, the

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17

Bogdevičius, Paulius, Olegas Prentkovskis, and Marijonas Bogdevičius. "Transmission with Cardan Joint Parametre Influence to Centrifugal Pump Characteristics." Mokslas - Lietuvos ateitis 9, no. 5 (2017): 559–64. http://dx.doi.org/10.3846/mla.2017.1073.

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Transmission with cardan joints and nonlinear gearbox elements generates vibrations caused by spinning motion of transmission. This affects the pressure and productivity of centrifugal pump. The momentum of centrifugal pump in turn affects dynamic characteristics of transmission. In order to find the effect of transmission elements on centrifugal pump we investigate transmission composed of asynchronous electrical engine, gear box, cardan joint and Ziegler Ultra centrifugal pump. We create mathematical models of transmission and centrifugal pumps and investigate how the dynamic effects of tra

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18

Wang, Jun, Sheming Fan, Youlin Cai, Kuiyu Meng, and Haoyang Chen. "Research on turbulence model parameters for the prediction of waterjet propulsion pump hydrodynamic performance." Journal of Physics: Conference Series 2854, no. 1 (2024): 012016. http://dx.doi.org/10.1088/1742-6596/2854/1/012016.

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Abstract The hydrodynamic performance of waterjet propulsion pumps has an important impact on improving the speed of waterjet propulsion ships. High-precision prediction of the hydrodynamic performance of water-jet propulsion pumps based on CFD is of great significance to improving the pump design quality. Based on the Reynolds-averaged Naiver-Stokes equation, this paper conducts a grid-independence verification on a water jet propulsion pump based on hydrodynamic test data, uses the Latin hypercube sampling method to generate SST k-ω turbulence model parameter space calculation samples, perfo

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19

Bazhaykin, Stanislav G., Eugeny F. Denisov, Marat Z. Yamilev, and Egor А. Tigulev. "Development of bench for investigation of hydraulic characteristics of flow part of shaftless combined pump-electric motor." SCIENCE & TECHNOLOGIES OIL AND OIL PRODUCTS PIPELINE TRANSPORTATION 10, no. 5 (2020): 550–57. http://dx.doi.org/10.28999/2541-9595-2020-10-5-550-557.

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The stages of creating a brand new shaftless pump unit are considered; including its flow part efficiency tests. The development is aimed at reducing losses caused by design features of existing pumps. A reliable and relatively inexpensive way to choose the optimal design of a pump unit is to perform large scale models tests. The key criterion of the test bench efficiency is the precise determination of the monitored parameters and their characteristics. The authors analyzed the structure of centrifugal pump losses and identified ways to improve the efficiency of pumping units. Principles of t

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20

Zhang, Xiang, Siwei Zhao, and Kai Wang. "Influence of Structural Parameters of Water-Lubricated Bearings on Vibration Characteristics of Marine Magnetic Pumps." Water 15, no. 23 (2023): 4060. http://dx.doi.org/10.3390/w15234060.

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In order to study the influence of water-lubricated bearings on the vibration of the marine magnetic pump, the vibration characteristics of the marine magnetic pump under different flow rates and bearing structural parameters (bearing clearance, eccentricity, and length–diameter ratio) were numerically analyzed. The internal flow fields of marine magnetic pumps and water-lubricated bearing were numerically calculated, and experimental verification of their external characteristics results was conducted. The results show that the vibration velocity level of the pump increases with the increase

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21

Nguyen, Duy-Dat, Dinh-Vu Dang, Minh-Kha Nguyen, and Van-Hai Trinh. "Effects of adjustable and control parameters on performance characteristics of multi-controlled variable displacement pump." Applied Engineering Letters : Journal of Engineering and Applied Sciences 10, no. 1 (2025): 14–24. https://doi.org/10.46793/aeletters.2025.10.1.2.

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Energy efficiency and improving the performance of high-power hydraulic systems in machinery are essential trends. Various methods can be employed, and the widespread use of multi-controlled hydraulic pumps is one of the most popular approaches. In this work, the effects of adjustable and control parameters on the pump's performance characteristics are investigated. Regarding this, based on the operation principle of hydraulic pumps with a multi-function controller, a dynamic model within the mathematical equations and the corresponding simulation model are developed. An experiment study is al

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22

Kryzhanivskyy, Ye I., and D. O. Panevnyk. "Optimization of design and mode parameters of the well ejection system." Oil and Gas Power Engineering, no. 1(33) (September 3, 2020): 73–80. http://dx.doi.org/10.31471/1993-9868-2020-1(33)-73-80.

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Insufficient energy performance of ejection equipment and a high probability of non-operating modes of its operation reduce the efficiency of downhole jet pumps. The method of determining the design and operating parameters of the well ejection system, which provide the maximum efficiency of the jet pump, is presented. The proposed algorithm for determining the optimal values of the geometric dimensions of the flowing part of the jet pump involves the construction of a series of pressure characteristics for different values of its geometric parameter, the calculation of the efficiency and the

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23

Audisio, Orlando Anibal, Mariano Nicolás Rossi, and Paul José Alonso. "Experimental study of a centrifugal pump operating as a hydraulic turbine." +Ingenio, Ene - Jun 2022 V4 N1 (December 12, 2022): 68–81. http://dx.doi.org/10.36995/j.masingenio.2022.12.12.006.

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An experimental investigation of centrifugal pump has been carried out to study its characteristics in pump and turbine mode operation (PAT). The correlation between pump and PAT performance is a major problem. Several methods have been developed to predict the best efﬁciency of pumps running as turbines, but their results are not in good coincidence with experimental data for all pumps. Fluid dynamic behavior of PAT changes appreciably, in relation to its localized and distributed hydraulic losses, velocity proﬁles and pressures at homologous points. It is not possible to infer the behavior o

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24

Jiang, Ben Chi, and Jian Bin Wang. "Research on Geometric Model for Solving the Displacement of Vane Pump." Advanced Materials Research 655-657 (January 2013): 7–10. http://dx.doi.org/10.4028/www.scientific.net/amr.655-657.7.

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Displacement is one of the most important parameters of vane pump, but the physical meaning of the pumps’ displacement is relatively difficult to understand. A new approach is presented to simplify the calculation process. On the basis of analyzing the working principle of vane pumps, corresponding visual geometric models were separately built, and then the displacement of vane pump can be directly calculated by those models. This method is applicable not only to single-acting pump but to double-acting pump, it shows a novel vision and is easy to master.

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25

Stoianovici, Doru, and Ștefan Pelin. "Valve efficiency at depth pumps." Romanian Journal of Petroleum & Gas Technology 3 (74), no. 1 (2022): 5–14. http://dx.doi.org/10.51865/jpgt.2022.01.01.

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Oil extraction by deep pumping uses bottom hole pumps whose efficiency depends on several parameters like: surface stroke length, stroke rate, pump depth, pump clearance. Pump valves play an important role in the efficiency of deep pumping. They wear out quite frequently, especially when the pumped oil contains mechanical suspensions. Choosing the right valves increases the pumping efficiency and prolongs the service life of the pump.

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26

Shui, Qingjiao, Ting Jiang, Binghui Pan, Tianxing Yang, and Wei Pan. "Numerical Research on Performance of High-Speed Partial Emission Pump." Shock and Vibration 2021 (January 18, 2021): 1–11. http://dx.doi.org/10.1155/2021/6697063.

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The high-speed partial emission pump is a small flow and high-head pump, which has been widely used. To study the main factors affecting the performance of high-speed partial emission pumps, numerical simulation methods were used to calculate the performance parameters of high-speed partial emission pumps with and without inducers, and the external characteristic parameters were verified through comparison test values. The results show that the head of the high-speed partial emission pump with inducer is nearly 15 m higher than that of the high-speed partial emission pump without inducer. Cons

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27

Shishkin, Nickolai Dmitrievich, and Marina Aleksandrovna Marysheva. "Improving jet pump installations designs for oil production." Oil and gas technologies and environmental safety 2024, no. 3 (2024): 49–60. http://dx.doi.org/10.24143/1812-9498-2024-3-49-60.

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The characteristics of jet pump installations are given, which are used mainly for low-yield wells in oil production whose flow rate is less than 10 m3/day. It is noted that jet pump installations have a relatively low efficiency of not exceeding 0.35, and it is almost equal to the efficiency of electric drive pump installations and downhole rod pump installations when extracting oil from wells with low flow rates of up to 20 m3/day. The advantages of jet pump installations over other types of downhole pumping installations in difficult oil production conditions are shown. With flow rates up t

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28

Medvedskyi, Oleksandr, Rolandas Bleizgys, Jonas Čėsna, Rolandas Domeika, Savelii Kukharets, and Roman Hrudovij. "The Study Design of a Double-Action Plate Vacuum Pump." Processes 12, no. 8 (2024): 1731. http://dx.doi.org/10.3390/pr12081731.

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Rotary plate vacuum pumps have become widely used as a source of vacuum for milking systems. The main features of a plate vacuum pump include design simplicity, high efficiency, low cost and adaptability to climatic conditions. A plate vacuum pump requires the improvement of specific performance indicators. This refers to the indicator of specific productivity and specific energy intensity. It is possible to improve the vacuum pump by optimizing the design parameters and technological models of operation. The known studies allow the establishment of rational geometric parameters, the number of

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29

Yu, Wanbo, Tao Sun, Zhenlai Ma, Zhenyi Shi, Peng Shu, and Yuan Yao. "Influence of Key Process Parameters on Vibration Characteristics of Centrifugal Pump." Journal of Physics: Conference Series 2477, no. 1 (2023): 012019. http://dx.doi.org/10.1088/1742-6596/2477/1/012019.

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Abstract The low-noise operation of ships will be affected by the vibration of centrifugal pumps, which are widely implemented in vessels. Available papers mainly focused on the structural optimization of pump components with less concentration on their assembly process, which include coaxiality, circle-runout and clearance fit, etc. The clearance between the impeller and wear ring, which is named wear-ring clearance, is influenced by the manufacturing and assembly process and has an impact on vibration. An investigation of the influence of key process parameters on the vibration characteristi

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30

Kauranne, Heikki. "Effect of Operating Parameters on Efficiency of Swash-Plate Type Axial Piston Pump." Energies 15, no. 11 (2022): 4030. http://dx.doi.org/10.3390/en15114030.

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In an effort to improve the energy economics of hydraulic systems, attention should be paid to reducing power losses in two main entities, energy converting components, and energy controlling and conveying components. Achieving the former requires utilizing components’ most energy efficient operating range. The energy converting efficiency of a pump, which is the primary energy converter in a hydraulic system, is determined by several operational factors. Of these, only pressure and rotational speed are normally considered, but also the fluid temperature and derived capacity with variable disp

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Ilyin, A. P., G. V. Milovzorov, and A. G. Milovzorov. "Classification of The Analog Informative Parameters of the Rod Deepwell Pump Dynamograph Signals." Intellekt. Sist. Proizv. 22, no. 3 (2024): 4–9. http://dx.doi.org/10.22213/2410-9304-2024-3-4-9.

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In mechanized oil production, rod deep-well pumps are widely used. They consist of surface and underground parts. The above-ground part includes pump drive and wellhead fittings. The wellhead fitting is designed to seal the well. The underground part is the pump itself. The pump consists of a plunger, rod string and tubing. The main method of diagnosing a rod deep-well pump is dynamometry. Dynamometry allows to determine the equipment defects and control the efficiency of the pump operation mode without stopping the well operation. Dynamometry is a process of measuring the loads, which are per

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32

Chen, Zhi, Lei Zhang, Zhizuo Li, Zhizhong Zhang, Guojun Zhang, and Fenglin Han. "Study on the Pumping Performance and Structure Parameters Optimization of High-Speed Small Compound Molecular Pump." Micromachines 15, no. 6 (2024): 717. http://dx.doi.org/10.3390/mi15060717.

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A molecular pump is the core component of vacuum systems in portable mass spectrometers and other analytical instruments. The forms of the existing molecular pumps mainly are the combinations of vertical bleed and compression channel, which have the shortcomings of heavy mass and large volume, which seriously restricts the application and development of portable mass spectrometers. Aiming at the problems of low strength and insufficient pumping performance under the miniaturization constraints (mass of 1.8 kg; exhaust diameter of 25 mm) of molecular pumps, a compound pump consisting of a horiz

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33

Altyntsev, Ievgenii, and Andrzej Korczak. "Dynamics of the Interaction between Human Circulatory System and Centrifugal Pump as a Left Ventricle Assist Device." Applied Mechanics and Materials 630 (September 2014): 365–74. http://dx.doi.org/10.4028/www.scientific.net/amm.630.365.

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Mathematical modeling of the complex process in the human cardiovascular system is powerful tool to evaluate the dynamic system response for the parameters change. Widely used continuous flow pumps (Left Ventricle Assist Device - LVAD) interacting with the circulatory system and work parameters of the assist device are changing dynamically. Different parameters of the system affect the pump operating conditions and on the contrary. Mathematical modeling of interaction between the cardiovascular system and mechanical assist device allows to identify the dangerous effects in the pump and system

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34

Rogovyi, Andrii, and Serhiy Lukianets. "KINEMATIC PARAMETERS OF THE OIL FLOW IN A VORTEX CHAMBER PUMP." Bulletin of the National Technical University "KhPI". Series: Hydraulic machines and hydraulic units, no. 1 (November 14, 2022): 59–65. http://dx.doi.org/10.20998/2411-3441.2022.1.09.

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The difficult operating conditions of oil pumps require high levels of reliability, durability and efficiency from hydraulic machines. The gas dissolved in oil leads to the appearance of regions with variable density in the pumps flow parts and to a breakdown in performance. The use of jet pumps is limited due to low efficiency. Therefore, the operation of new vortex chamber pumps for oil production and transportation is quite promising due to the increase in pumping efficiency indicators using the advantages of centrifugal and jet technology in these pumps. On the other hand, to date, no stud

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35

Wu, Xinhao, Peilan Su, Jianhua Wu, Yusheng Zhang, and Baohe Wang. "Research on the Relationship between Sediment Concentration and Centrifugal Pump Performance Parameters Based on CFD Mixture Model." Energies 15, no. 19 (2022): 7228. http://dx.doi.org/10.3390/en15197228.

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To study the relationship between sediment concentration and the performance parameters of centrifugal pumps, Jiamakou water supply pumping station with total installed capacity of 30,880 kW was selected to analyze characteristics of the centrifugal pump in this paper. Based on a CFD mixture model, the effects of different sediment concentrations on the movement of solid–liquid two-phase flow and the performance parameters of the centrifugal pump were obtained. Then, fitting equations were established between performance parameters (head, flow rate, shaft power, and efficiency) of the centrifu

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36

WANG, Hong, Bangjun CHEN, and Baofeng ZHANG. "Optimization design of structural parameters of duplex geared pump in hydraulic automatic transmission." Electrotehnica, Electronica, Automatica 73, no. 2 (2025): 79–89. https://doi.org/10.46904/eea.25.73.2.1108009.

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Gear pumps often bear unbalanced radial hydraulic pressure, which is easy to cause serious wear of bearings, and the improvement of working pressure will be limited by many aspects. The built-in double gear pump of hydraulic mechanical automatic transmission is designed, and the structural composition and characteristics are analyzed; the basic parameters of gear pump are designed, and the working process and instantaneous flow characteristics are analyzed; the radial force generated by the hydraulic pressure along the gear circumference, the radial force generated by the gear meshing transmis

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Shi, Yi, and Hongwu Zhu. "Proposal of a stage-by-stage design method and its application on a multi-stage multiphase pump based on numerical simulations." Advances in Mechanical Engineering 13, no. 1 (2021): 168781402098731. http://dx.doi.org/10.1177/1687814020987317.

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Rotodynamic multiphase pumps are usually equipped with many compression units to provide sufficient boosting pressure for the transportation of production fluid in gas oil field. It is a challenge to maintain pump performance while flow parameters in each stage vary due to the compressibility of gas-liquid phase. In this article, a stage-by-stage design method is proposed to improve the boosting capability of a multiphase pump. Variations of flow parameters in each stage are investigated based on computational fluid dynamics (CFD) numerical simulation. Available methods to determinate main imp

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Liu, Shoulie, Hefeng Dong, Shaobin Li, and Xizhen Song. "Study on the Influence of Working Characteristics of Centripetal Pump Based on VOF/Mixture Model." Processes 12, no. 7 (2024): 1376. http://dx.doi.org/10.3390/pr12071376.

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Aviation fuel contamination can seriously affect aircraft flight safety, and the centripetal pump is the core component of aviation fuel purification equipment. The performance of centripetal pumps is highly demanded for purification equipment. The operating parameters of centripetal pumps significantly affect the internal flow characteristics, which affects the performance of centripetal pumps. However, the flow characteristics of a centripetal pump influenced by the operating parameters have not yet been elaborated upon. In this research, a three-dimensional numerical simulation of the air-f

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Tyurin, A. V., A. V. Burmistrov, A. A. Raykov, and S. I. Salikeev. "Experimental Study of Pumping Condensable Vapors by Oil Free Vacuum Scroll Pumps." Proceedings of Higher Educational Institutions. Маchine Building, no. 2 (731) (February 2021): 34–40. http://dx.doi.org/10.18698/0536-1044-2021-2-34-40.

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When operating a vacuum pump, it is often necessary to pump out liquid vapors or vapor-gas media that can condense in its working cavities. To prevent condensation in displacement pumps including scroll pumps, gas ballast device is used. The maximum tolerable water vapor pressure at the inlet and maximum pump capacity by water vapor are the main parameters of a pump with gas ballast device. The highest water vapor pressure at the inlet and the maximum capacity of the oil-free scroll vacuum pump by water vapor were determined experimentally. For this purpose pumping speed, gas flow through the

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Huang, Si, Jing He, Xueqian Wang, and Guangqi Qiu. "Theoretical Model for the Performance of Liquid Ring Pump Based on the Actual Operating Cycle." International Journal of Rotating Machinery 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/3617321.

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Liquid ring pump is widely applied in many industry fields due to the advantages of isothermal compression process, simple structure, and liquid-sealing. Based on the actual operating cycle of “suction-compression-discharge-expansion,” a universal theoretical model for performance of liquid ring pump was established in this study, to solve the problem that the theoretical models deviated from the actual performance in operating cycle. With the major geometric parameters and operating conditions of a liquid ring pump, the performance parameters such as the actual capacity for suction and discha

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Zhao, Yuanyuan, Xiangyu Si, Xiuli Wang, Rongsheng Zhu, Qiang Fu, and Huazhou Zhong. "The Influence and Optimization of Geometrical Parameters on Coast-Down Characteristics of Nuclear Reactor Coolant Pumps." Processes 7, no. 6 (2019): 327. http://dx.doi.org/10.3390/pr7060327.

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Coast-down characteristics are the crucial safety evaluation factors of nuclear reactor coolant pumps. The energy stored at the highest moment of inertia of the reactor coolant pump unit is utilized to maintain a normal coolant supply to the core of the cooling loop system for a short period of time during the coast-down transition. As a result of the high inertia moment of the rotor system, the unit requires a high reliability of the nuclear reactor coolant pump and consumes considerable energy in the start-up and normal operation. This paper considers the operational characteristics of the c

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Назаренко, Г. В. "ANALYSIS OF THE INFLUENCE OF THE DESIGN PARAMETERS OF THE UPPER STAGE LIQUID PROPELLANT ROCKET ENGINE PUMP ON ITS CAVITATION CHARACTERISTICS." Journal of Rocket-Space Technology 32, no. 4 (2023): 3–14. http://dx.doi.org/10.15421/452324.

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Abstract. The phenomenon of cavitation is inherent in all vane machines, the working medium of which is liquid. With a certain combination of input pressure, flow rate, rotor speed, and the gas saturation of the working fluid in the vane machine, cavitation may occur. Cavitation negatively affects the power characteristics of the vane machines. It leads to a drop in the power parameters for the pumps and damage to their flowing parts. And also at times increases the pulsation of pressure at the pump outlet and vibration. This is especially dangerous for LPRE chambers, as the pulsation of press

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Chan, W. L., U. K. Jamaludin, and N. S. Azahari. "Archimedes Screw Pump Efficiency Based on Three Design Parameters using Computational Fluid Dynamics Software – Ansys CFX." Journal of Physics: Conference Series 2688, no. 1 (2024): 012015. http://dx.doi.org/10.1088/1742-6596/2688/1/012015.

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Abstract Utilization of Archimedes screw pumps as water lifting pumps has become widespread in past decade due to frequent occurrences of floods in Malaysia. The problem of insufficient drainage in various urban areas exacerbates the impact of heavy rainfall, prompting efforts to mitigate this issue with minimal maintenance cost and low impact to the environment. Thus, this study is aiming to study the design parameters of screw pump to obtain the optimal efficiency of the Archimedes screw pump specifically for flood mitigation in Malaysia. The main design parameters affecting pump’s efficienc

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Zhou, Hua, and Wei Song. "Theoretical flowrate characteristics of the conjugated involute internal gear pump." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 227, no. 4 (2012): 730–43. http://dx.doi.org/10.1177/0954406212454390.

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The aim of this article is to study the theoretical flowrate characteristics of the conjugated involute internal gear pump. The conjugated involute internal gear pump has a different internal gear, the profile of which is completely conjugated to that of pinion, from the conventional involute internal gear pump. To describe briefly, the former pump is called ‘conjugated pump’ while the latter pump ‘conventional pump’. This structure makes the conjugated pump have smaller volumes of trapped fluid than the conventional pump, which indicates the conjugated pump has a better flowrate performance.

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Sutardi, Sutardi, and Ridwan Adliansyah. "Effect of Impeller Trimming on Centrifugal Pump." Jurnal Rekayasa Mesin 12, no. 3 (2021): 663–75. http://dx.doi.org/10.21776/ub.jrm.2021.012.03.16.

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Pumps, especially centrifugal pumps, play an important role in engineering application, such as petroleum and petro-chemical industries, agricultural industries, portland cement industries etc. To obtain the best performance of the pumps, one has to operate the pumps at their design conditions. In some circumstances, however, the pumps must operate lower than their design conditions and result in the decrease in their performances. In such cases, it is possible to replace the pump impeller with the smaller impeller diameter or to cut its original impeller to smaller size as necessary. The cut

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Tran, Van-The, Bui Trung Thanh, Banh Tien Long, Hoang Quoc Tuan, and Duc Toan Nguyen. "Study on the effects of tooth profile design parameters of rotor to performance of vacuum pump." International Journal of Modern Physics B 34, no. 22n24 (2020): 2040141. http://dx.doi.org/10.1142/s0217979220401414.

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The vacuum pump usually used traditional curves such as the circular, cycloidal curves and their combinations to construct tooth profile. However, to increase efficiency and design flexibility for the vacuum pump, a novel rotor tooth profile for Roots rotor of vacuum pumps is proposed. Which is named “CEIEC” tooth profile and orderly composed of five significant segments, a circular arc for tooth tip, an epicycloid curve with variable extension, an involute, an enveloped epicycloid curve and a conjugated circular arc for tooth root. A numerical example is presented to evaluate the performance

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Mimmi, G., and P. Pennacchi. "INTERNAL LOBE PUMP DESIGN." Transactions of the Canadian Society for Mechanical Engineering 21, no. 2 (1997): 109–21. http://dx.doi.org/10.1139/tcsme-1997-0008.

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The subject of this paper is the theoretical analysis of the internal lobe pump which is a particular type of positive displacement rotary pump. The main components of the pump are the rotors: usually the outer one is characterised by lobes with circular shape, while the inner rotor profile is determined as conjugate to the other. For this reason the first topic presented here is the definition of the geometry of the rotors starting from the design parameters. The choice of these parameters is subject to some limitations in order to avoid inner rotor undercutting and to limit the pressure angl

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Bakytuly, Nurdaulet. "Design Optimization of a Domestic Centrifugal Pump using Taguchi Method." Technobius 3, no. 4 (2023): 0049. http://dx.doi.org/10.54355/tbus/3.4.2023.0049.

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This study focuses on optimizing the design of a domestic centrifugal pump through the Taguchi method, aiming to enhance its performance. Experimental data on pump performance, including total head, efficiency, and suction specific speed, were collected and analyzed. The effects of three design parameters—impeller diameter, blade angle, and volute tongue angle—were investigated using ANOVA. The analysis revealed that impeller diameter had the most significant influence on pump performance, followed by volute tongue angle and blade angle. Optimal performance was achieved with a 55 mm impeller d

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Thanapandi, P., and R. Prasad. "A Quasi-Steady Performance Prediction Model for Dynamic Characteristics of a Volute Pump." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 208, no. 1 (1994): 47–58. http://dx.doi.org/10.1243/pime_proc_1994_208_008_02.

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A performance prediction model generally applicable for volute-type centrifugal pumps has been extended to predict the dynamic characteristics of a pump during its normal starting and stopping periods. Experiments have been conducted on a volute pump with different valve openings to study the dynamic behaviour of the pump during normal start-up and stopping, when a small length of discharge pipeline is connected to the discharge flange of the pump. Such experiments have also been conducted when the test pump was part of a hydraulic system, an experimental rig, where it is pumping against three

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Shevchenko, Nataliia, and Denys Lebedynets. "MODIFICATION OF THE CENTRIFUGAL PUMP IMPELLER USING CAD." Bulletin of the National Technical University "KhPI". Series: Hydraulic machines and hydraulic units, no. 2 (January 24, 2024): 56–61. http://dx.doi.org/10.20998/2411-3441.2023.2.08.

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Currently, during the design of hydraulic machines, specialized software is widely used. The work presents an overview of modern programs that use a system of automated design of centrifugal pumps. The modern approach to the design of centrifugal pumps is based on the joint solution of direct and inverse problems of the theory of the working process in hydraulic machines. The purpose of the work is to develop the impeller of a centrifugal sectional pump with the following parameters: a liquid volume of 6 m3 per hour and a pressure of 140 m. The pump is used to supply crude oil to the recuperat

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