Results 71 to 80 of about 5,144 (222)

Characterization of energy loss in jet mechanism of a Pelton turbine [PDF]

International Journal of Fluid Engineering
Pelton turbines are becoming widely used in hydropower generation. However, the internal flow mechanism and energy loss characteristics of these turbines remain unclear, and there has been relatively little research in this area.
Jiaxing Lu, Linyong Qian, Xiaobing Liu, Youngdo Choi   +3 more
doaj   +1 more source

Numerical prediction of Pelton turbine efficiency

IOP Conference Series: Earth and Environmental Science, 2010
This paper presents a numerical analysis of flow in a 2 jet Pelton turbine with horizontal axis. The analysis was done for the model at several operating points in different operating regimes. The results were compared to the results of a test of the model. Analysis was performed using ANSYS CFX-12.1 computer code.
D Jošt, P Mežnar, A Lipej
openaire   +1 more source

Addressing Freshwater Scarcity and Hydrogen Production: Offshore Wind and Reverse Osmosis Synergies

Advanced Sustainable Systems, Volume 8, Issue 12, December 2024.
This work aims to use offshore wind power for reverse osmosis (RO) desalination and water electrolysis, producing green hydrogen. By incorporating a pressure exchanger (PX) to enhance energy recovery, improved efficiency and reduced operational costs are targeted.
Haris Ishaq, Curran Crawford
wiley   +1 more source

Performance and control of a reverse osmosis unit integrated with Pelton Wheel to supply emergency electric loads under various operating conditions

Sustainable Environment Research, 2023
Nowadays, the whole world is moving very quickly into the field of seawater desalination. This is because the world suffers from a lack of potable water. Water and energy are adjoining linked fields. The present work aims at investigating the performance
Fadl A. Essa, F. Selim, Mahmoud S. El-Sebaey   +2 more
doaj   +1 more source

Perencanaan Turbin Air Mikro Hidro Jenis Pelton Untuk Pembangkit Listrik Di Desa Kali Kecamatan Pineleng Dengan Head 12 Meter [PDF]

, 2012
The utilization of water as a natural resource of renewable energy for power plant is one of the alternative solutions to replace the need for fossil fuels.
Poea, C. S. (Ceri), Rantung, J. (Jotje), Soplanit, G. D. (Gerits)   +2 more
core  

A dam management problem with energy production as an optimal switching problem

Applied Stochastic Models in Business and Industry, Volume 40, Issue 6, Page 1596-1611, November/December 2024.
Abstract We consider an optimal stochastic control problem for a dam. Electrical power production is operating under an uncertain setting for electricity market prices and water level which has to be kept under control. Indeed, the water level inside the basin cannot exceed a certain threshold for safety reasons, and at the same time cannot decrease ...
Etienne Chevalier, Cristina Di Girolami, M'hamed Gaïgi, Elisa Giovannini, Simone Scotti   +4 more
wiley   +1 more source

Failure investigation of a Pelton turbine runner [PDF]

Engineering Failure Analysis, 2017
In this paper, an uncommon failure of a Pelton turbine has been analyzed. After the monitoring system detected a sudden increase in the vibration levels, the turbine was inspected. The inspection showed that a fragment of one bucket broke off during operation.
Egusquiza Montagut, Mònica, Egusquiza Estévez, Eduard, Valentín Ruiz, David, Valero Ferrando, Ma. del Carmen, Presas Batlló, Alexandre   +4 more
openaire   +3 more sources

A Study of Technical, Economic and Social Factors Affecting Micro-Hydropower Plants in Nepal [PDF]

, 2019
Due to slow expansion of the national grid, many rural areas of Nepal depend on micro-hydropower plants to provide electricity to homes and businesses.
Bikram Karki, Prem, Booker, Julian, Butchers, Joe, Gautam, Biraj, Tran, Anh L.H., Williamson, Sam   +5 more
core   +3 more sources

Energetical analysis of two different configurations of a liquid-gas compressed energy storage [PDF]

, 2018
In order to enhance the spreading of renewable energy sources in the Italian electric power market, as well as to promote self-production and to decrease the phase delay between energy production and consumption, energy storage solutions are catching on.
Colucci, C., Oclon, P., Vallati, A.
core   +1 more source

Investigation of the Effects of the Jet Impingement Angle on Torque Generation at the Suction Surface of a Pelton Turbine Bucket [PDF]

Journal of Applied Fluid Mechanics
The performance of a Pelton turbine was investigated by means of an integrated numerical and experimental study that focused on the fluid dynamics associated with the bucket suction surface during the jet–bucket interactions.
Y. X. Liu, Q. Zheng, L. H. Guo, X. Z. Wei, B Xu, H. M. Wang, D. Q. Qin, L. Han   +7 more
doaj   +1 more source