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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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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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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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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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Geometrical effects on performance and inner flow characteristics of a pump-as-turbine: A review
Advances in Mechanical Engineering, 2020 A pump-as-turbine is a hydraulic machine that can operate as a pump and turbine at the same time. Pump-as-turbine happens to be the most appropriate method for meeting the world’s energy demands, particularly in rural and isolated areas of a country ...
Stephen Ntiri Asomani +4 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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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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Innovation of Pump as Turbine According to Calculation Model for Francis Turbine Design
Energies, 2021 The effective utilization of micro hydropower sources is often realized through the use of pumps as turbines (PAT). The efficiency of PAT is about the same as that of the original pump. A further increase in efficiency and power output can be achieved by
Martin Polák
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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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