Results 31 to 40 of about 41,738 (228)

An innovative approach for energy generation from waves [PDF]

open access: yes, 2010
Sustainable energy generation is becoming increasingly important due to the expected limitations in current energy resources and to reduce pollution. Wave energy generation has seen significant development in recent years.
A. Al-Habaibeh   +4 more
core   +1 more source

ESRC guide vanes of hydraulic turbine for Three Gorges project [PDF]

open access: yesChina Foundry, 2005
The mechanical properties and internal quality of low carbon martensite Electroslag Remelting Casting (ESRC)stainless steel castings are superior to that of sand casting ones.
Rui CHEN, Xudong LI, Junqing WANG
doaj  

Conversion relation of centrifugal pumps as hydraulic turbines based on the amplification coefficient

open access: yesAdvances in Mechanical Engineering, 2017
Most centrifugal pumps with low specific speed are designed using the method of increasing the flow rate; by this, each designer selects different flow rate amplification coefficients for the pumps.
Guangtai Shi   +3 more
doaj   +1 more source

Safe Management of Pressure Equipment Contained in Wind Turbines

open access: yesChemical Engineering Transactions, 2023
Renewable energies are the backbone of the energy transition. Among these energies, in recent years wind energy (together with solar) has largely established itself thanks to technological innovation and the production of increasingly performing wind ...
Vincenzo Nastasi   +3 more
doaj   +1 more source

Limitations of Using DAQ Cards for Absolute Vibration Measurement in Hydraulic Machines

open access: yesApplied Sciences
Vibration measurements are a frequently used tool in technical issues. They are widely used in operation and for testing irregularities in the operation of machines and devices, including hydraulic machines (turbines, pumps, and pump turbines).
Waldemar Janicki
doaj   +1 more source

A review on non-conventional hydropower turbines and their selection for ultra-low-head applications

open access: yesHeliyon, 2023
Very low-head water facilities are the salient resources for the development of hydropower using non-conventional hydro turbines. This review paper is concentrated on the collection and selection of turbines suitable for hydraulic heads between 0.5 and 3 
Raj Kumar Chaulagain   +2 more
doaj   +1 more source

Fluid-Structure Numerical Study of an In-Pipe Axial Turbine with Circular Blades

open access: yesEnergies
Hydraulic turbines have become indispensable for harnessing renewable energy sources, particularly in-pipe hydraulic turbine technology, which leverages excess energy within pipeline systems like drinking water distribution pipes to produce electrical ...
Oscar D. Monsalve-Cifuentes   +3 more
doaj   +1 more source

Experimental and Numerical Studies of a High-Head Francis Turbine: A Review of the Francis-99 Test Case

open access: yesEnergies, 2016
Hydraulic turbines are widely used to meet real-time electricity demands. Computational fluid dynamic (CFD) techniques have played an important role in the design and development of such turbines. The simulation of a complete turbine requires substantial
Chirag Trivedi   +2 more
doaj   +1 more source

A superelement-based method for computing unsteady three-dimensional potential flows in hydraulic turbomachines [PDF]

open access: yes, 1999
A numerical method is presented for the computation of unsteady, three-dimensional potential flows in hydraulic pumps and turbines. The superelement method has been extended in order to eliminate slave degrees of freedom not only from the governing ...
Esch, B.P.M. van   +2 more
core   +3 more sources

Experimental tests of the operating conditions of a micro gas turbine device [PDF]

open access: yes, 2015
The aim of this work is to analyze the performance of a commercial micro gas turbine, focusing on the analysis of the fuel consumption and the outlet compressor and turbine temperature at various rpm, and to evaluate and compare the efficiency of the ...
CAPATA, Roberto
core   +1 more source

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