Results 111 to 120 of about 5,160 (221)
Experimental study of air delivery into water-conveyance system of the radial-axial turbine
EPJ Web of Conferences, 2017 The paper presents an experimental study of oscillatory response in the Francis turbine of hydraulic unit. The experiment was performed on large-scale hydrodynamic test-bench with impeller diameter of 0.3 m.
Maslennikova Alexandra +3 more
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Sediment erosion in Francis turbines
, 2009 Sediment erosion is a major challenge for run-of-river power plants, especially during flood periods. Due to the high content of hard minerals such as quartz and feldspar carried in the river, substantial damage is observed on the turbine components. Material is gradually removed, thus the efficiency of the turbine decreases and the operating time of ...
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Draft tube flow instability encountered under off-design operating conditions in hydraulic turbines significantly limits their operational flexibility. The instability arises consequent to a higher than threshold swirl content in the runner outflow and ...
Masoodi, Faiz Azhar, +2 more
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Validation of Francis Water Turbine CFD Simulations
, 2008 This paper compares data from calculated and measured results covering the whole operating range for a 20 MW Francis turbine in order to validate the CFD simulation.
Mrša, Zoran +5 more
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Dimension and Production of a turbine Type Francis
RE&PQJNow in Brazil, most of the produced electric power and originating from hydroelectric that for your time are used of hydraulic turbines to transform the hydraulic energy (the pressure energy and the kinetic energy) of a flow of water, in mechanical energy and for your time in electric power.
null Elmo Thiago Lins Cöuras Ford +4 more
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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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, 1989 Published in Water Power & Dam ConstructionA previous article covered the methodology used to select turbine runner sizes and setting of Kaplan and propeller units.
Gordon, J.L
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Increasing power output from Francis turbines: Effektøkning i vannkraftverk med Francis turbiner
, 2009 The main objective in this thesis was to investigate a potential increase of power output from the existing turbines at Ruacana Hydropower Station. This was restricted to only consider a runner replacement, and only technical aspects of a rehabilitation project has been evaluated.
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Parameterized CFD Simulation of a Francis Turbine
, 2019 Das Thema dieser Masterarbeit ist die parametrisierte CFD-Analyse einer Francis Turbine für verschiedene Betriebspunkte. Das Hauptziel ist das aufsetzen einer numerischen Simulation für fünf Betriebspunkte, welche dann als Referenzsimulationen für ...
Hirn, Georg
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Analysis on cause of erosion of guide vane of high‐head Francis turbine in sandy river
Energy Science & EngineeringThe Kizilsu River Basin in China is located in the desert Gobi area with high sediment content and high hardness. After 4798h operation, the maintenance of a high‐head Francis turbine in this basin found that the guide vane was seriously worn, and even ...
Haiqi Wang +7 more
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