Results 11 to 20 of about 5,160 (221)
Energies, 2016 Hydraulic turbines are widely used to meet real-time electricity demands. Computational fluid dynamic (CFD) techniques have played an important role in the design and development of such turbines. The simulation of a complete turbine requires substantial
Chirag Trivedi +2 more
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OpenFOAM for Francis Turbine Transients [PDF]
OpenFOAM® Journal, 2021 The flexibility and fast responsiveness of hydropower systems make them a reliable solution to overcome the intermittency of renewable energy resources and balance the electrical grid. Therefore, investigating the complex flow fields during such operation is essential to increase the reliability and lifetime of future hydropower systems.
Salehi, Saeed, Nilsson, Håkan
openaire +3 more sources
Study of the state a Francis turbine [PDF]
Polish Maritime Research, 2013 Abstract This paper presents a methodology to evaluate the technical state of a Francis turbine by shaft rotor dynamic simulation. There are several rotor dynamic criteria that define the technical state of a turbo-machine. To feed the shaft rotor dynamic model this delivers the required information to accomplish the technical assessment.
Zóltowski, M. +2 more
core +5 more sources
Modelling and Internal Fuzzy Model Power Control of a Francis Water Turbine
Energies, 2014 This paper presents dynamic modelling of a Francis turbine with a surge tank and the control of a hydro power plant (HPP). Non-linear and linear models include technical parameters and show high similarity to measurement data.
Klemen Nagode, Igor Škrjanc
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Accurate Determination of Volumetric and Mechanical Efficiencies and Leakage Behavior of Francis Turbine and Francis Pump-Turbine [PDF]
Accurate Determination of Volumetric and Mechanical Efficiencies and Leakage Behavior of Francis Turbine and Francis Pump-Turbineapplication/pdf In order to determine the volumetric and the mechanical efficiencies of Francis turbine and Francis pump-turbine, the flow in the front and the back spaces of a runner equipped with several thrust balancing devices, such as balancing pipes and balancing holes, is analyzed theoretically. The flow characteristics in sixteen types of model
Kitahora, Takaya +4 more
core +2 more sources
Modernization of Francis Water Turbine
Journal of the Mechanical Behavior of Materials, 2000 Obretenov, V.S.
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Machines, 2022 The flow characteristics of the draft tube of a Francis turbine have a significant influence on turbine stability. Numerical simulations were performed for a Francis turbine under three different output conditions of 20%, 100%, and 120% at the rated and ...
Lei Ji +7 more
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Parameter based tool for Francis turbine guide vanes design using coupled MATLAB - ANSYS approach
Journal of Sustainable Development of Energy, Water and Environment Systems, 2022 The complex geometry of Francis turbine components can be defined parametrically so that automatic optimization techniques based on parametrization can be used. This is convenient for a hydraulic redesign of individual turbine elements.
Marija Lazarevikj +4 more
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Using Artificial Neural Network to Solve Multi-objective Optimization of Francis Turbine Runner
Guan'gai paishui xuebao, 2023 【Background】 Technical renovation of turbine equipment in hydropower plant has attracted increased attention due to its low investment, quick return and high economic benefit.
WANG Rongtao, LAI Xide, CHEN Xiaoming
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Assessment of a Francis Micro Hydro Turbine Performance Installed in a Wastewater Treatment Plant
Energies, 2023 The purpose of this research work was to examine the hydroelectric potential of wastewater treatment plants by harnessing the kinetic and/or potential energy of treated wastewater for electricity generation.
Paweł Tomczyk +4 more
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