Results 141 to 150 of about 632 (187)

Numerical Simulation of Francis Turbine

Volume 1A, Symposia: Advances in Fluids Engineering Education; Turbomachinery Flow Predictions and Optimization; Applications in CFD; Bio-Inspired Fluid Mechanics; Droplet-Surface Interactions; CFD Verification and Validation; Development and Applications of Immersed Boundary Methods; DNS, LES, and Hybrid RANS/LES Methods, 2014
This paper presents the results of modelling of the complete three-dimensional fluid flow through the spiral casing, stay vanes, guide vanes, and then through the Francis turbine runner to the draft tube of the Derbendikhan power station. To investigate the flow in the Francis turbine and also to compute stress distribution in the runner blades, a ...
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Berechnung der Francis-Turbine

1922
Beispiel: Es ist eine Francis-Turbine nach Bauart Fig. 75 mit senkrechter Welle zu entwerfen fur eine mittlere Wassermenge von Q = 2 cbm pro Sekunde und ein nutzbares Gefalle von H = 8 m.
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Numerische Lebensdauerberechnung einer Francis Turbine

2020
Aufgrund der Einspeisung volatiler Energiequellen in das Stromnetz, werden Wasserkraftanlagen heutzutage vermehrt zur Netzregulierung eingesetzt. Dies führt jedoch häufig zu erhöhten Betriebszeiten außerhalb des eigentlichen Auslegungspunktes der Anlage. Erhöhte dynamische Strömungseffekte, welche sich schädigend auf die mechanische Struktur auswirken,
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Unsteady operation of the Francis turbine

2023
Increasing interconnection of individual power systems into major grids has imposed more stringent quality assurance requirements on the modelling of hydroelectric generating plant. This has provided the impetus for the present study in which existing industry models used to predict the transient behaviour of the Francis-turbine plants are reviewed ...
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Flow Analysis in Francis Water Turbines

Journal of Engineering for Power, 1967
It is the intent of this study to investigate the flow field in Francis water turbines operated at various guidevane settings with the use of analytical techniques. The flow fluid is analyzed with a streamline-curvature method and the underlying theory is discussed briefly.
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Wesen und Berechnung der Francis-Turbine

1921
Die Francis-Turbine ist eine auserschlachtige Turbine mit radialem Eintritt und axialer Ableitung durch ein Saugrohr, das sich mit stetigem Ubergang an den Austritt aus dem Laufrad anschliest.
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Development of onshore wind turbine fleet counteracts climate change-induced reduction in global capacity factor

Nature Energy, 2022
Christopher Jung, Dirk Schindler
exaly  

Flow Investigation in a Francis Turbine

Journal of Basic Engineering, 1971
Results of both theoretical and experimental investigations of the flow in a Francis water turbine are presented. The flow visualization with the aid of rotating five-borehole probes provides the relative velocities, the pressure and energy distribution, the slip factor, the boundary layers, and the secondary flow.
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A review on recycling and reuse methods for carbon fiber/glass fiber composites waste from wind turbine blades

Composites Part B: Engineering, 2021
Priyanka Choudhary, Sunny Zafar
exaly  

A DNA turbine powered by a transmembrane potential across a nanopore

Nature Nanotechnology, 2023
Xin Shi, , Christopher Maffeo
exaly