Advanced high‐precision methodology for assessing sediment erosion in Pelton turbine buckets
Energy Science & EngineeringDeveloping highly accurate sediment erosion testing methods for Pelton turbine overflow components is challenging due to their irregularly curved surfaces.
Bei Qin +8 more
doaj +2 more sources
Numerical simulation of multiphase flow and prediction of sediment wear in a large Pelton turbine
Energy Science & EngineeringThe problem of sediment wear presents a significant challenge for hydraulic turbines operating in sediment‐rich rivers, particularly for high‐head Pelton turbines.
Mengjun Qin +8 more
doaj +2 more sources
Effect of sediment erosion on pressure pulsations in a large Pelton turbine
Energy Science & EngineeringPelton turbines functioning in sandy river environments often encounter difficulties due to the swift movement of sediment particles, leading to erosion and damage to overflow components.
Bing Yao +8 more
doaj +2 more sources
Flow Modeling in Pelton Turbines by an Accurate Eulerian and a Fast Lagrangian Evaluation Method [PDF]
International Journal of Rotating Machinery, 2015 The recent development of CFD has allowed the flow modeling in impulse hydro turbines that includes complex phenomena like free surface flow, multifluid interaction, and unsteady, time dependent flow.
A. Panagiotopoulos +4 more
doaj +3 more sources
Detection of Hydraulic Phenomena in Francis Turbines with Different Sensors. [PDF]
Sensors (Basel), 2019 Nowadays, hydropower is demanded to provide flexibility and fast response into the electrical grid in order to compensate the non-constant electricity generation of other renewable sources.
Valentín D +4 more
europepmc +4 more sources
Sensor-Based Optimized Control of the Full Load Instability in Large Hydraulic Turbines. [PDF]
Sensors (Basel), 2018 Hydropower plants are of paramount importance for the integration of intermittent renewable energy sources in the power grid. In order to match the energy generated and consumed, Large hydraulic turbines have to work under off-design conditions, which ...
Presas A +4 more
europepmc +4 more sources
An optical reaction micro-turbine. [PDF]
Nat Commun, 2018 To any energy flow there is an associated flow of momentum, so that recoil forces arise every time an object absorbs or deflects incoming energy. This same principle governs the operation of macroscopic turbines as well as that of microscopic turbines ...
Bianchi S +4 more
europepmc +4 more sources
Numerical Investigation of Pelton Turbine Distributor Systems with Axial Inflow
Energies, 2023 In an agile power grid environment, hydroelectric power plants must operate flexibly to follow the demand. Their wide operating range and high part-load efficiencies allow for multi-injector Pelton turbines to fulfil these demands as long as the water ...
Franz Josef Johann Hahn +3 more
doaj +1 more source
Numerical Investigation of Nozzle Jet Flow in a Pelton Microturbine
Machines, 2021 The characterization of flow through Pelton hydro turbines allows the optimization of their operation and maximization of energy performance. The flow in the injector of Pelton turbines and in the free jet area (the area from the injector outlet surface ...
Dorian Nedelcu +2 more
doaj +1 more source
Trade-off analysis and design of a Hydraulic Energy Scavenger [PDF]
, 2012 In the last years there has been a growing interest in intelligent, autonomous devices for household applications. In the near future this technology will be part of our society; sensing and actuating will be integrated in the environment of our houses ...
Boero, Diego +4 more
core +2 more sources