Results 41 to 50 of about 124,199 (205)
Energy Strategy ReviewsThe Archimedes Screw Turbine (AST) is an innovative type of hydroelectric power plant that can be particularly useful in locations with very low-head sites (less than 10 m head).
Robin Thakur +6 more
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Dual Frequency Regulation in Pumping Mode in a Wind–Hydro Isolated System
Energies, 2018 Frequency control is one of the most critical tasks in isolated power systems, especially in high renewable penetration scenarios. This paper presents a new hydropower pumped-storage dual control strategy that combines variable-speed-driven pumps and ...
José Ignacio Sarasúa +3 more
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Energy Science &Engineering, Volume 14, Issue 2, Page 764-779, February 2026.Based on entropy theory, this study presents a comparative numerical analysis of the flow energy dissipation (FED) in a VTSP under two distinct operating conditions: pump condition and turbine condition, both characterized by relatively high hydraulic efficiencies of 88.9% and 87.4%, respectively. In pump condition, the highest FED production occurs in
S. Liu +5 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 +2 more sources
Comprehensive Review of Pump as Turbine
Renewable Energy and Sustainable Development, 2019 The turbine is a heart of power generation in a hydro-electric power system. A variety of different turbines are available for the purpose. The common types of Hydraulic turbines are; Pelton, cross flow, Francis, Kaplan, and propeller turbine.
Abdulbasit Nasir Jemal +1 more
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A Comprehensive Review on Investigation of Sediment Erosion of Pelton Wheel Turbine
Pakistan Journal of Engineering & Technology, 2022 Hydro turbines installed at different hydropower plants face the issue of sediment erosion. Sediment erosion is an ambiguous phenomenon influenced by several parameters, including silt concentration, size, jet velocity, diameter, and fluid viscosity ...
Sati Ullah +5 more
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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
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IET Renewable Power Generation, Volume 20, Issue 1, January/December 2026.This review synthesizes academic works on hybridized hydropower systems, focusing on control strategies and energy storage sizing to address objectives such as operational cost reduction (wear mitigation in Kaplan/Francis turbines), revenue enhancement through primary frequency regulation, and resilience improvements like black‐start capability.
Viktor Döhlen +2 more
wiley +1 more source
Energies, 2022 In Ecuador, the implementation of hydroelectric power plants has had a remarkable growth in the energy sector due to its high efficiency, low environmental impact, and opportunities to generate employment.
Jose Erazo +5 more
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International Journal of Energy Research, Volume 2026, Issue 1, 2026.This study presents a comprehensive energy and exergy analysis of a multigeneration system driven by the waste thermal energy of a modular high‐temperature nuclear reactor. The proposed configuration simultaneously delivers electricity, liquid hydrogen (H2), freshwater (FW), heating, and cooling.
Murat Koc, Denis Osinkin
wiley +1 more source