[HTML][HTML] Analysis of emerging technologies in the hydropower sector
The paper reviews recent research and development activities in the field of hydropower
technology. It covers emerging and advanced technologies to mitigate flow instabilities …
technology. It covers emerging and advanced technologies to mitigate flow instabilities …
A review of cavitation in hydraulic machinery
X Luo, B Ji, Y Tsujimoto - Journal of Hydrodynamics, 2016 - Springer
This paper mainly summarizes the recent progresses for the cavitation study in the hydraulic
machinery including turbo-pumps, hydro turbines, etc.. Especially, the newly developed …
machinery including turbo-pumps, hydro turbines, etc.. Especially, the newly developed …
Rotating vortex rope formation and mitigation in draft tube of hydro turbines–A review from experimental perspective
Hydropower is a clean and renewable source of energy which is widely used to generate
electric power and stabilize the power grid. It can respond quickly to any change in demand …
electric power and stabilize the power grid. It can respond quickly to any change in demand …
Review of hydrodynamics instabilities in Francis turbine during off-design and transient operations
Electricity generation from solar and wind has raised a significant concern about the stability
of grid networks. Hydroelectricity plays an important role to balance the stability of grid …
of grid networks. Hydroelectricity plays an important role to balance the stability of grid …
Analysis of the swirling flow downstream a Francis turbine runner
An experimental and theoretical investigation of the flow at the outlet of a Francis turbine
runner is carried out in order to elucidate the causes of a sudden drop in the draft tube …
runner is carried out in order to elucidate the causes of a sudden drop in the draft tube …
Hydroacoustic modelling and numerical simulation of unsteady operation of hydroelectric systems
C Nicolet - 2007 - infoscience.epfl.ch
Hydropower represented in 1999 19% of the world electricity production and the absolute
production is expected to grow considerably during the next 30 years. Francis turbines play …
production is expected to grow considerably during the next 30 years. Francis turbines play …
Unsteady pressure analysis of a swirling flow with vortex rope and axial water injection in a discharge cone
The variable demand of the energy market requires that hydraulic turbines operate at
variable conditions, which includes regimes far from the best efficiency point. The vortex …
variable conditions, which includes regimes far from the best efficiency point. The vortex …
Optimization of axial water injection to mitigate the Rotating Vortex Rope in a Francis turbine
Abstract Rotating Vortex Rope (RVR) resulting from flow instabilities inside draft tube affects
the hydraulic turbine's efficiency and wear. Among the passive and active RVR mitigation …
the hydraulic turbine's efficiency and wear. Among the passive and active RVR mitigation …
An outlook on the draft-tube-surge study
M Nishi, S Liu - International Journal of Fluid Machinery and Systems, 2013 - jstage.jst.go.jp
If large pressure fluctuation is observed in the draft tube of a Francis turbine at part-load
operation, we have generally called it draft-tube-surge. As occurrence of this phenomenon …
operation, we have generally called it draft-tube-surge. As occurrence of this phenomenon …
[HTML][HTML] Sources of vibration and their treatment in hydro power stations-A review
Vibration condition monitoring (VCM) enhances the performance of Hydro Generating
Equipment (HGE) by minimizing the damage and break down chances, so that equipment …
Equipment (HGE) by minimizing the damage and break down chances, so that equipment …