Results 181 to 190 of about 5,160 (221)

Modeling of the dynamic response of a Francis turbine [PDF]

Mechanical Systems and Signal Processing, 2012
The paper presents a detailed numerical model of the dynamic behaviour of a Francis turbine installed in a hydroelectric plant. The model considers in detail the Francis turbine with all the electromechanical subsystems, such as the main speed governor,
Paolo Pennacchi, Steven Chatterton, Andrea Vania   +2 more
exaly   +2 more sources

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Development of Shroudless Francis Turbine

Volume 1A: Symposia, Part 2, 2015
In this study, new design concepts were structured by DOE based on internal flow evaluation by CFD to realize the efficiency improvement, reliability improvement and cost reduction of a medium or small capacity hydro turbine. As a part of new concepts, shroudless type and shroud liner type runner shape were adopted. In shroud liner type, shroud line of
Yohei Nakamura, Ryosuke Shima, Hiroki Komatsu, Saki Shiratori, Kazuyoshi Miyagawa   +4 more
openaire   +1 more source

A study of irregularity of reaction in Francis turbines

Journal of the American Institute of Electrical Engineers, 1923
Irregularity of reaction in hydraulic machinery causing vibration has up to the last few years been of relatively little importance and treated as a more or less necessary evil. With the advent of larger units, particularly for high heads, it became of prime importance that there be little or no vibration.
openaire   +1 more source

Die Francis-Turbine

1908
132. Saugrohr. Die Francis-Turbine eignet sich besser als irgend eine andere Form fur den Anschlus eines Saugrohres. Wohl kann sie so gut wie irgend eine andere auch ohne Saugrohr arbeiten; allein da sich dessen Anwendung fast von selbst ergibt, bildet sie die Regel.
openaire   +1 more source

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 ...
openaire   +1 more source

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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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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Assessment of erosion wear in low specific speed Francis turbine due to particulate flow

Advanced Powder Technology, 2023
Shubham Sharma, Bhupendra K Gandhi
exaly  

Francis turbin

Journal of the Franklin Institute, 1912
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Erosion Wear on the Runner Shroud of a Francis Turbine

Journal of Energy Engineering - ASCE, 2021
Zilong Zhao, Zhongdong Qian, Zhao Zilong   +2 more
exaly