Results 51 to 60 of about 5,144 (222)
Distribution Pipe of Pelton Turbine [PDF]
, 2008 Tato bakalářská práce popisuje problematiku návrhu okružního potrubí Peltonovy turbíny a uvádí způsoby zjednodušení realizace tohoto potrubí. Srovnávána je zde varianta potrubí vyrobeného ze svařovaných plechů, s variantou z bezešvých trubek spojených ...
Halabrin, Robin
core
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
wiley +1 more source
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
Effect of Injector Needle Tip Shape on Jet Flow for Pelton Turbine
EnergiesThe 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
International 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
Flow modeling in Pelton turbines by an accurate Eulerian and a fast Lagrangian evaluation method [PDF]
, 2015 The recent development of Computational Fluids Dynamics (CFD) has allowed the flow modeling in impulse hydro turbines that includes complex phenomena like free surface flow, multi fluid interaction, and unsteady, time dependent flow.
Aggidis, George +4 more
core +2 more sources
Investigation of the Erosion Characteristics in the Distribution Parts of Pelton Turbine
Journal 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
Ocean energy:the wave of the future [PDF]
, 2008 The power point presentation discussed the developing technology of ocean energy with design convergence on tidal but not on wave. Today's technologies will help solve the immediate needs, but we need to work hard nurturing tomorrow's low carbon ...
Aggidis, George A.
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
Unsteady flow simulations of Pelton turbine at different rotational speeds
Advances 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