Results 31 to 40 of about 255 (182)

Failure investigation of a Pelton turbine runner [PDF]

open access: yesEngineering 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

Advances in research on impulse hydro‐turbine technology

open access: yesRiver, Volume 5, Issue 1, Page 112-133, February 2026.
Abstract To accelerate the development of impulse hydro‐turbines and support the efficient utilization of hydropower resources in Southwest China, this paper examines the background, historical development, and research progress of impulse hydro‐turbines.
Xiaochao Li   +7 more
wiley   +1 more source

Effect of Injector Needle Tip Shape on Jet Flow for Pelton Turbine

open access: yesEnergies
The Pelton turbine has been widely applied for the advantages of its simple structure, flexible mass flow rate, wide range of applicable heads and high efficiency. The nozzle and needle are a core part of the Pelton turbine injector.
Chun Zhang   +9 more
doaj   +1 more source

A Review on Hydropower Hybridization for Frequency Containment, Objectives and Dimensions of Auxiliary Energy Storage

open access: yesIET 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

Investigation of the Erosion Characteristics in the Distribution Parts of Pelton Turbine

open access: yesJournal of Applied Fluid Mechanics, 2021
Pelton turbine, as its working principle, can perform in the high head condition especially in the southwest mountainous region in China. When the flow contains silt, it will induce the erosion in the bucket and needle structure which affects the ...
L. Han, Y. Wang, G. F. Zhang, X. Z. Wei
doaj  

Instabilities and influence of geometric parameters on the efficiency of a pump operated as a turbine for micro hydro power generation: A review

open access: yesJournal of Sustainable Development of Energy, Water and Environment Systems, 2021
Compared to a traditional turbine (Kaplan, Francis, Pelton), pumps operated as turbine are a good alternative for micro hydroelectric power plants thanks to their low cost and easy availability.
Jonathan Graciano-Uribe   +2 more
doaj   +1 more source

Energy and Exergy Analysis of a Gas‐Cooled Nuclear Reactor System for Sustainable Hydrogen Generation

open access: yesInternational 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

Proposal of a Parameterized Methodology for the Hydrodynamic Design of High‐Efficiency Pelton Rotors Validated by Multiphase CFD Simulations

open access: yesInternational 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
wiley   +1 more source

Unsteady flow simulations of Pelton turbine at different rotational speeds

open access: yesAdvances in Mechanical Engineering, 2015
This article presents numerical simulations of a small Pelton turbine suitable for desalination system. A commercial flow solver was adopted to resolve difficulties in the numerical simulation for Pelton turbine such as the relative motion of the turbine
Minsuk Choi   +2 more
doaj   +1 more source

Transient 3D CFD Simulation of a Pelton Turbine—A State-of-the-Art Approach for Pelton Development and Optimisation

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2023
The complex flow conditions in Pelton turbines make it challenging to gain detailed insight into the local flow processes. However, CFD methods offer vast potential for developing and optimising Pelton turbines due to these flow conditions.
Lukas Sandmaier   +2 more
doaj   +1 more source

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