Results 1 to 10 of about 650 (181)
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
Michel Cervantes +2 more
exaly +4 more sources
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 Polak
exaly +3 more sources
Monitoring a Francis turbine operating conditions
Flow Measurement and Instrumentation, 2018 Abstract Francis turbines are designed for a specific set of operating conditions that is particular to each hydropower plant site. It allows this type of turbine to extract as much hydraulic power as possible, as long as they are operating in the right conditions.
François Avellán, Loïc Andolfatto
exaly +2 more sources
Comprehensive Hydraulic Improvement and Parametric Analysis of a Francis Turbine Runner
Energies, 2019 Hydraulic turbines are usually required to operate in a wide range. The operation at off-design conditions not only reduces the unit efficiency, but also significantly deteriorates the dynamic stability of the turbines.
Baoshan Zhu, Cong Rao, Zhu Baoshan
exaly +3 more sources
Numerical Study on Flow Characteristics in a Francis Turbine during Load Rejection
Energies, 2019 Labyrinth seals are not usually included in the numerical models of hydraulic machinery to simplify the geometric modeling, and thereby reduce the calculation burden.
Daqing Zhou +2 more
exaly +3 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.
Igor Skrjanc, Skrjanc Igor
exaly +3 more sources
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
doaj +1 more source
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
doaj +1 more source
Modernization of Francis Water Turbine
Journal of the Mechanical Behavior of Materials, 2000 Obretenov, V.S.
doaj +2 more sources
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
doaj +1 more source