Results 101 to 110 of about 38,835 (280)
Steady Flow Analysis of Francis Turbine
Journal of Mechanical Engineering, 2009 The flow features are presented on different openings in Francis turbine by unsteady numerical simulation. The unsteady flow results are as follows:when the opening is 12 mm, pressure fluctuation at runner outlet near hub is not obvious and pressure fluctuation amplitudes near midstream and shroud are bigger.
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CFD Numerical simulations of Francis turbines
Revista Facultad de Ingeniería Universidad de Antioquia, 2013 In this paper the description of the internal flow in a Francis turbine is addressed from a numerical point of view. The simulation methodology depends on the objectives. On the one hand, steady simulations are able to provide the hill chart of the turbine and energetic losses in its components.
Laín Beatove, Santiago +3 more
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Analysis of offshore wind turbine operation & maintenance using a novel time domain meteo-ocean modeling approach [PDF]
, 2012 This paper presents a novel approach to repair modeling using a time domain Auto-Regressive model to represent meteo-ocean site conditions. The short term hourly correlations, medium term access windows of periods up to days and the annual distibution of
Dinwoodie, Iain Allan +2 more
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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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Numerical investigation of draft tube pressure pulsations in a Francis turbine with splitter blades [PDF]
, 2017 Ioannis Kassanos +2 more
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E3S Web of Conferences, 2017 With an intention to reduce the consumption of energy from fossil fuels and the CO2 emission in relation with the climate change solution, Indonesian Government has targeted that the role of the New and Renewable Energy (NRE) resources reaches at least ...
Kamal Samsul, Prajitno, Pardadi Janu
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Energies, 2019 With the improvement in energy structures, the safe and stable operation of hydropower units is becoming the most important issue for electric grids. To expand the stable operating range of a 200 m head Francis turbine, splitter blades were designed to ...
Yun Jia +4 more
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Condition monitoring wind turbine gearboxes using on-line/in-line oil analysis techniques [PDF]
, 2011 Paper examining condition monitoring wind turbine gearboxes using on-line/in-line oil analysis ...
Quail, Francis J.
core
Overview of the experimental tests in prototype [PDF]
, 2017 Experimental tests in prototype are necessary to understand the dynamic behaviour of the machine during different operating points. Hydraulic phenomena as well as its effect on the structure need to be studied in o rder to avoid instabilities during ...
Egusquiza Estévez, Eduard +3 more
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Analysis of Fatigue Failure of Francis Turbine Runner at Derbendikhan Hydropower Station
Sulaimani Journal for Engineering Sciences, 2017 Fatigue failures in Francis turbine runner are frequently occurred in hydropower plants, causing unexpected plant downtime and considerable financial loss. Decades of operational experience have shown that turbine runners develop fatigue cracks in areas,
Raza Abdulla Saeed
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