Results 61 to 70 of about 3,833 (190)
Results in EngineeringHydro-abrasive erosion and material fatigue are amongst the main challenges for Pelton turbines. Erosive wear caused by sediment-laden water, significantly impacts turbine efficiency, time between overhaul and service life.
Maxime Chiarelli +4 more
doaj +1 more source
IEEE Access, 2023 Seeking 100% renewable energy source (RES) penetration in low-inertia, isolated grids presents major challenges, including frequency control and stability.
Apostolos G. Papakonstantinou +2 more
doaj +1 more source
Characterization of non-intentional emissions from distributed energy resources up to 500 kHz: A case study in Spain [PDF]
, 2019 Narrow Band Power Line Communications (NB-PLC) systems are currently used for smart metering and power quality monitoring as a part of the Smart Grid (SG) concept.
Angulo, I. +6 more
core +2 more sources
Solid–Liquid Flow Analysis of Francis‐99 Turbine Runner: Effects of Sediment Concentration
Energy Science &Engineering, Volume 13, Issue 8, Page 4131-4142, August 2025.ABSTRACT This study examines the behavior of solid–liquid two‐phase flow within the runner of the Francis‐99 turbine. Numerical simulations were carried out by Ansys Fluent software using the Mixture multiphase flow model along with the Realizable k‐ε turbulence model to analyze the solid–liquid two‐phase flow in the turbine runner.
Kang Xu +6 more
wiley +1 more source
Theoretical and experimental analysis of dynamic processes of pipe branch for supply water to the Pelton turbine [PDF]
, 2012 The paper presents the results of the analysis of pipe branch A6 to feed the Hydropower Plant ”Perućica” with integrated action Pelton turbines. The analysis was conducted experimentally (tensometric) and numerically.
Jovanović Miomir Lj. +4 more
core +1 more source
Energy Science &Engineering, Volume 13, Issue 2, Page 700-713, February 2025.Sediment erosion on Francis turbine components is visualized experimentally for two different operating points. The erosion rate of the Francis turbine runner is quantified during the operation. A benchmark test case is established that enables qualitative and quantitative validation of computational fluid dynamic simulations for erosion prediction ...
Ravi Poudel +3 more
wiley +1 more source
Hydro/Battery Hybrid Systems for frequency regulation [PDF]
, 2019 An innovative Hydro/Battery Hybrid System (HBHS), composed of a hydropower plant (HPP) and a Battery Energy Storage System (BESS) is proposed to provide frequency regulation services in the Nordic Power System (NPS).
Laban, Danilo
core +1 more source
Conservation Letters, Volume 18, Issue 1, January/February 2025.ABSTRACT Conservation investments do not operate within a zero‐sum paradigm, but instead provide opportunities for co‐benefits across sustainable development and conservation goals. Recognizing the interconnectedness of conservation efforts within socioenvironmental systems can amplify support for conservation actions, ultimately creating additional co‐
Luz A. de Wit +5 more
wiley +1 more source
International Journal of Energy Research, Volume 2025, Issue 1, 2025.This paper proposes innovative control schemes for Pelton turbines to improve frequency regulation in isolated power systems with high penetration of variable renewable energy sources (vRESs). Traditionally, Pelton turbine deflectors are used as safety mechanisms; however, this study explores their potential for continuous frequency regulation ...
José Ignacio Sarasua Moreno +4 more
wiley +1 more source
The Design of High Efficiency Crossflow Hydro Turbines: A Review and Extension
Energies, 2018 Efficiency is a critical consideration in the design of hydro turbines. The crossflow turbine is the cheapest and easiest hydro turbine to manufacture and so is commonly used in remote power systems for developing countries.
Ram Adhikari, David Wood
doaj +1 more source