Results 1 to 10 of about 70,075 (251)
CFD Modelling of Pump as Turbine with Various Number of Blade for Microhydro System [PDF]
Journal of Applied Science & Process Engineering, 2016 Pump as Turbine is an electromechanically component that is largely used in microhydro system. The main advantages of pump as turbine compared to commercially available turbines are lower cost, easier to maintain and readily available. These key features
Mohd Azlan Ismail Ismail +3 more
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The acceleration effect of pump as turbine system during starting period [PDF]
Scientific Reports, 2023 In order to reveal the influence of starting acceleration on starting process of a pump as turbine system, this paper carries out a numerical calculation of the three-dimensional viscous unsteady flow of pump as turbine circulating piping system under ...
Yu-Liang Zhang, Jin-Fu Li, Zu-Chao Zhu
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An Improved Autoencoder and Partial Least Squares Regression-Based Extreme Learning Machine Model for Pump Turbine Characteristics [PDF]
Applied Sciences, 2019 Complete characteristic curves of a pump turbine are fundamental for improving the modeling accuracy of the pump turbine in a pump turbine governing system.
Chu Zhang +4 more
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Comprehensive Review of Pump as Turbine [PDF]
Renewable Energy and Sustainable Development, 2019 The turbine is a heart of power generation in a hydro-electric power system. A variety of different turbines are available for the purpose. The common types of Hydraulic turbines are; Pelton, cross flow, Francis, Kaplan, and propeller turbine.
Abdulbasit Nasir Jemal +1 more
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Numerical investigation of flow characteristics in the front and rear chambers of centrifugal pump and pump as turbine [PDF]
Scientific ReportsTo investigate the flow characteristics in front chamber and rear chamber in pump mode and pump as turbine mode, a 3D computational model of a centrifugal pump was established, including the front and rear chamber.
Yu-Liang Zhang +2 more
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Effect of valve opening on starting performance of pump as turbine. [PDF]
PLoS ONE, 2023 The study on transient characteristics of pump as turbines during atypical startup has not been deeply explored yet. In order to reveal the transient characteristics of a small centrifugal pump reversing as turbine during startup process in this paper ...
Yu-Liang Zhang, Jin-Fu Li, You-Qu Zheng
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Engineering Applications of Computational Fluid Mechanics, 2023 Large centrifugal pumps can generate electricity in reverse, reducing the power supply pressure of the power grid. However, S region may occurs during the operation and regulation of the pump as a steam turbine (PAT). The S region can cause unstable unit
Shijie Yang +6 more
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Numerical prediction of cavitation performance of a prototype pump as turbine based on CFD [PDF]
Scientific ReportsCentrifugal pump as turbine (PAT) is a crucial technology for recovering and utilizing liquid pressure energy, but its cavitation behavior remains insufficiently understood.
Yu-Liang Zhang +5 more
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Atypical start-up experiments on pump as turbine [PDF]
Advances in Mechanical Engineering, 2021 At present, research on the characteristics of pumps as turbine (PATs) during the start-up process is still insufficient. To reveal the transient characteristics of a centrifugal PAT during the atypical start-up process, a test rig for the transient ...
Yu-Liang Zhang, Yan-Juan Zhao
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Hydrodynamic and experimental characterization of pumps as turbines
Dyna, 2023 To estimate the performance, efficacy, modes of operation, hydrodynamic instabilities, and methodologies for harnessing energy from the pump as turbine (PAT), it is necessary to characterize these hydraulic turbomachines in all their modes of operation ...
Daniel Felipe Tobón-Espinosa +3 more
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