Results 41 to 50 of about 37,000 (232)

Gas turbine combustor Patent [PDF]

, 1971
Method for maintaining good performance in gas turbine during air flow ...
Humenik, F. M., Norgren, C. T., Roudebush, W. H.   +2 more
core   +1 more source

Development of the Turgo Impulse turbine:past and present [PDF]

, 2016
The Turgo Impulse turbine provides a unique and novel solution to increasing the capacity of a hydraulic impulse turbine while maintaining the nozzle and spear injector system (as used in Pelton turbines) for flow regulation.
Aggidis, George Athanasios, Anagnostopoulos, J. S., Benzon, Shaun   +2 more
core   +1 more source

A Review on Cracking in Laser Additive Manufacturing of Nickel‐Based Superalloys: Types, Formation Mechanisms, and Suppression Strategies

Rare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Nickel‐based superalloys (Ni‐based superalloys) have attracted extensive attention in laser additive manufacturing (LAM) due to their capability to directly fabricate complex and high‐performance structural components. However, the rapid melting and solidification inherent to LAM result in intense thermal cycling, which induces high residual ...
Tianxiang Lin, Ciying Li, Hongkai Zhou, Rui Chen, Yi Li, Can Cui, Lizhang Zhang, Maoyuan Li, Zhenzhong Wang, Wei‐Wei Xu   +9 more
wiley   +1 more source

Flow-Induced Strength Analysis of Large Francis Turbine Under Extended Load Range

Applied Sciences
To meet the load requirements of the power grid, the hydroelectric power plants need to extend the operational load range of the turbine units, which are often operated under off-design operating conditions.
Xingping Liu, Xingxing Huang, Weijiang Chen, Zhengwei Wang   +3 more
doaj   +1 more source

The Dynamic Characteristics and Control of a Hydraulic Turbine

Measurement + Control, 1969
A dynamic model of a radial flow turbine was derived. The model was verified by tests on an experimental 5 hp Francis type turbine. The tests indicate that the model is adequate for control system design.
I. Djordjevic Dipl.Ing, F. J. Charlwood MSc, BSc (Eng), L. Finkelstein MSc, CEng, MIEE, AInstP, M. W. C. Houston MSc.   +3 more
doaj   +1 more source

Methodology for Risk Assessment of Part Load Resonance in Francis Turbine Power Plant [PDF]

, 2007
At low flow rate operation, Francis turbines feature a cavitating vortex rope in the draft tube resulting from the swirling flow of the runner outlet. The unsteady pressure field related to the precession of the vortex rope induces plane wave propagating
Allenbach, Philippe, Avellan, François, Greiveldinger, Bob, Herou, Jean-Jacques, Nicolet, Christophe, Simond, Jean-Jacques   +5 more
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Performance of a centrifugal pump running in inverse mode [PDF]

, 2004
This paper presents the functional characterization of a centrifugal pump used as a turbine. It shows the characteristics of the machine involved at several rotational speeds, comparing the respective flows and heads.
Engeda A., Fernández J., Kittredge C. P., Knapp R. T., Neumann B., Stepanoff A. J.   +5 more
core   +1 more source

Estimating golden eagle carrying capacity and wind power impacts through species distribution modeling

Ecosphere, Volume 17, Issue 3, March 2026.
Abstract Knowledge of species' habitat requirements, and the environmental conditions and resources needed for survival and reproduction are key factors in effective conservation management. We used species distribution modeling to study golden eagle (Aquila chrysaetos) habitat requirements.
Pinja Saarinen, Vesa Nivala, Suvi Ponnikas, Anssi Lensu, Hannu Tikkanen   +4 more
wiley   +1 more source

Influence of tungsten carbide spray treatment on anti-wear performance of Francis turbine runner blades surface

Advances in Mechanical Engineering
Based on the velocity similarity theory, a test system for sediment wear flow around Francis turbine runner blades was established. The sediment wear test was carried out on the surface of Francis turbine runner blades with severe sediment wear before ...
Bing Yao, Yuanyuan Gang, Ming Xiao, Zhishun Yu, Dengyun Jiang, Jiayang Pang, Xiaobing Liu   +6 more
doaj   +1 more source

Experimental rotordynamics and flow visualization approach for periodically reversed flows of a Francis - Type Pump - Turbine in generating mode at off - design operating conditions [PDF]

, 2014
A non-conventional tufting visualization method along with an image processing development and specific applied technique adapted to the flow conditions is proposed and implemented on a reduced scale model of a Francis-type reversible pump-turbine in ...
Guzmán Díaz, Sebastián
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