Results 41 to 50 of about 192 (166)
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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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
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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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
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Numerical analysis of a new cross-flow type hydraulic turbine for high head and low flow rate
Engineering Applications of Computational Fluid Mechanics, 2021 Cross-flow turbines have recently been proposed for energy recovery in aqueducts when the outlet pressure is greater than zero, owing to their constructive simplicity and good efficiency within a large range of flow rates and head drops.
Calogero Picone +3 more
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International Journal of Rotating Machinery, Volume 2026, Issue 1, 2026.This work presents and validates a direct analytical methodology for the parametric hydrodynamic design of Pelton rotors. The proposed approach combines a one‐dimensional theoretical framework for defining global geometric rotor parameters with an inductive method for generating bucket geometry, formalized from a comprehensive mapping of a high ...
Daniel O. Silva +4 more
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Incremental Model Order Reduction of Smoothed‐Particle Hydrodynamic Simulations
International Journal for Numerical Methods in Fluids, Volume 97, Issue 12, Page 1571-1594, December 2025.The paper presents the development of an incremental singular value decomposition strategy for compressing time‐dependent particle simulation results, addressing gaps in the data matrices caused by temporally inactive particles. The approach reduces memory requirements by about 90%, increases the computational effort by about 10%, and preserves the ...
Eduardo Di Costanzo +3 more
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Energy Technology, Volume 13, Issue 9, September 2025.This study explores the integration of solar energy with electrodialysis (ED) for sustainable freshwater generation. A photoactive electrode enhances ion transport, reducing external energy inputs and environmental impacts compared to conventional ED.
Namra Mir, Burak Yuzer, Yusuf Bicer
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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