Dénoyer une galerie en charge pour améliorer la flexibilité d’une centrale hydroélectrique
LHB Hydroscience Journal, 2022 Le développement des nouvelles sources d’énergie renouvelable de nature intermittente nécessite de disposer de sources d’énergie flexibles également d’origine renouvelable afin de garantir la stabilité du réseau électrique et les engagements ...
Jean Decaix +6 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
Investigation of New Hampshire hydropower potential [PDF]
, 2012 The popularity of green and renewable energy has risen sharply in recent years, and hydropower has consistently been the most common form of renewable energy in both the US and the state of New Hampshire.
Murray, Maxwell
core +1 more source
Power system stability of a small sized isolated network supplied by a combined wind-pumped storage generation system: a case study in the Canary Islands [PDF]
, 2012 Massive integration of renewable energy sources in electrical power systems of remote islands is a subject of current interest. The increasing cost of fossil fuels, transport costs to isolated sites and environmental concerns constitute a serious ...
Carlos A. Platero +5 more
core +3 more sources
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
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 MechanicsThe 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 +7 more
doaj +1 more source
Penetration depth of plunging liquid jets – A data driven modelling approach [PDF]
, 2016 © 2016 Elsevier Inc. In the case of impinging water jets or droplets, air entrainment processes are crucial to the casing design of hydraulic impulse turbines in the micro-hydro sector. To initiate first steps towards a precise prediction of the complex,
Kramer, Matthias +2 more
core +1 more source
Theoretical framework to surpass the Betz limit using unsteady fluid mechanics [PDF]
, 2019 The Betz limit expresses the maximum proportion of the kinetic energy flux incident on an energy conversion device that can be extracted from an unbounded flow.
Dabiri, John O.
core +1 more source
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 +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 +4 more
openaire +3 more sources