Results 41 to 50 of about 805,835 (276)
Energies, 2023 To study the influence of the axial installation deviation of the runner on the hydraulic axial force of the 1000 MW Francis turbine unit, geometric models of the full flow passage of the Francis turbine with the runner sinking in the axial direction by ...
Yongsheng Liu +6 more
doaj +1 more source
Critical Hydraulic Eccentricity Estimation in Vertical Turbine Pump Impeller to Control Vibration
International Journal of Rotating Machinery, 2021 In many applications, pumps are tested against standard specifications to define the maximum allowable vibration amplitude limits of a pump. It is essential to identify the causes of vibration and methods to attenuate the same to ensure the safe and ...
Ravindra S. Birajdar +2 more
doaj +1 more source
Quantification of over-speed risk in wind turbine fleets [PDF]
, 2011 The effective life management of large and diverse fleets of wind turbines is a new problem facing power system utilities. More specifically, the minimization of over-speed risk is of high importance due to the related impacts of possible loss of life ...
Ault, Graham, Mcmillan, David
core +1 more source
Numerical Analysis of the Flow by Using a Free Runner Downstream the Francis Turbine
International Journal of Turbomachinery, Propulsion and Power, 2023 The current requirements of industrialized countries require the use of as much renewable energy as possible. One significant problem with renewable energy is that the produced power fluctuates.
Alin Ilie Bosioc +3 more
doaj +1 more source
Experimental tests of the operating conditions of a micro gas turbine device [PDF]
, 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
Journal of Marine Science and EngineeringSediment erosion damage is one of the main causes of structural failure in reaction turbine units. To study the mechanism through which sediment erosion affects the water-guiding mechanism of a reaction turbine unit, this study obtained the average ...
Jiayang Pang +7 more
semanticscholar +1 more source
Improvement of hydro-turbine draft tube efficiency using vortex generator
Advances in Mechanical Engineering, 2015 Computational fluid dynamics simulation was employed in a hydraulic turbine (from inlet tube to draft tube). The calculated turbine efficiencies were compared with measured results, and the relative error is 1.12%.
Xiaoqing Tian +3 more
doaj +1 more source
Hydraulic loss analysis in a pump-turbine with special emphasis on local rigid vortex and shear
The Physics of Fluids, 2022 Since the pump as turbine (PAT) is increasingly employed in energy storage, improving efficiency in both pump and turbine modes is required for economic benefits.
Zhiyi Yuan +3 more
semanticscholar +1 more source
Effect of the Diameter of Pressure-Balance Pipe on Axial Hydraulic Thrust
Journal of Marine Science and Engineering, 2021 The axial hydraulic thrust has great influence on the safety and stability of a pump turbine. A common way to balance hydraulic thrust is to install a pressure-balance pipe, and the change in pipe diameter is one of the important factors affecting axial ...
Fei Zhang +3 more
doaj +1 more source
An innovative approach for energy generation from waves [PDF]
, 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