Results 11 to 20 of about 1,570 (213)
Study on the influence of inducer and its guide vanes on cryogenic cavitation and pressure fluctuation characteristics of an LNG pump [PDF]
Scientific ReportsLiquefied natural gas (LNG) pumps are prone to cavitation under cryogenic operation. This study establishes a numerical model to investigate the influence of an inducer and its guide vanes on the cavitation and pressure fluctuation characteristics of a ...
Xiaobao Zhang +5 more
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The pump as a turbine: A review on performance prediction, performance improvement, and economic analysis [PDF]
HeliyonPumps as Turbines (PATs) are known for their ability to replace conventional turbines in Pico/micro-hydropower plants. However, selecting a suitable pump and estimating its performance in reverse mode is a challenging task. The overall efficiency of PATs
Abdulbasit Nasir +2 more
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Internal Flow Phenomena of Two-Way Contra-Rotating Axial Flow Pump-Turbine in Pump Mode under Variable Speed [PDF]
Journal of Applied Fluid Mechanics, 2022 This paper investigated the variable speed operation of a two-way contra-rotating axial flow pump–turbine in pump mode. When counter-rotating impellers operate at the same speed, a significant difference exists in the shaft power of the two impellers ...
C. An +5 more
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Research on a power smoothing control strategy for energy storage hydraulic wind turbines
Energy Science & Engineering, 2023 To solve the problem of large output power fluctuations in wind turbines and improve grid adaptability, a hydraulic energy storage system is introduced in traditional hydraulic wind turbines.
Wei Gao +4 more
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Convolutional Neural Network Identification of Stall Flow Patterns in Pump–Turbine Runners
Energies, 2022 Stall flow patterns occur frequently in pump turbines under off-design operating conditions. These flow patterns may cause intensive pressure pulsations, sudden increases in the hydraulic forces of the runner, or other adverse consequences, and are some ...
Junjie Wu, Xiaoxi Zhang
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Comprehensive Review of Pump as Turbine
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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Shock and Vibration, 2014 Current trends in design of pump-turbines have led into higher rotor-stator interaction (RSI) loads over impeller-runner. These dynamic loads are of special interest having produced catastrophic failures in pump-turbines.
Cristian G. Rodriguez +2 more
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Journal of Marine Science and Engineering, 2023 Runaway is a common phenomenon in pump-turbines for hydropower and ocean power, accompanied by strong instability, which can easily lead to accidents.
Di Zhu +4 more
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Extension of Operating Range in Pump-Turbines. Influence of Head and Load
Energies, 2017 Due to the increasing share of new renewable energies like wind and solar in the generation of electricity the need for power regulation and energy storage is becoming of paramount importance.
Carme Valero +5 more
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Researches regarding primary control in hydraulic systems
MATEC Web of Conferences, 2017 The technology in wind turbines has developed very rapidly but there are still a lot that can be improved also regarding new technologies. One example is wind turbine with hydraulic transmission.
Tița Irina, Mardare Irina
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