Monitoring a Francis Turbine Operating Conditions

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Masonry buildings form building aggregates around the world in historical centers, which developed as the layout of the city or village densified. In these aggregates, adjacent buildings can share structural walls, connected at the interfaces by interlocki ...

Fatigue life prediction of wind turbine rotor blades is a very challenging task, as their failure is led by different failure types that act synergistically. Inherent defects like wrinkles, fiber misalignments, and voids that can be introduced during fabri ...

In the framework of the XFLEX HYDRO H2020 European Project, the pumped-storage power plant of Grand'Maison (France), owned by Electricité De France, focuses on the implementation of the hydraulic short-circuit (HSC) operating mode. This mode increases the ...

Wind-tunnel experiments are performed to investigate the effect of minor modifications to the roof edge shape on the power performance and wake characteristics of a horizontal-axis wind turbine sited on a cube-shaped building. Three roof edge shapes are co ...

Analytical wind turbine wake models are widely used to predict the wake velocity deficit. In these models, the wake growth rate is a key parameter specified mainly with empirical formulations. In this study, a new physics-based model is proposed and valida ...

Vertical-axis wind turbines (VAWT) are excellent candidates to complement traditional wind turbines and increase the total wind energy capacity. Development of VAWT has been hampered by their low efficiency and structural unreliability, which are related t ...

In this study, the wake behind a wind turbine located on an escarpment is investigated using particle-image velocimetry in a wind tunnel. Five different escarpment models are used, which vary in the windward side shape from forward facing steps (FFS) with ...

LES and wind tunnel studies have shown significant benefit when allowing turbines (T) in a wind farm to adopt different heights. This work presents two new genetic algorithms (GA) that perform wind farm layout optimization (WFLO) involving continuous and t ...

The cross-flow turbine is an attractive technology for small-scale hydropower generation thanks to its low capital cost and relatively high efficiency even under partial discharge operating conditions. It has been proposed that this kind of turbine can be ...

The goal of the current article is to suggest a novel solar system to produce power, fresh water, and cooling. As solar energy is unavailable at nights, a novel thermal storage system (TES) based on phase change material (PCM) is used to store the required ...

Francis turbines operating at part load conditions typically experience a cavitation vortex rope immediately at the runner outlet. As the compliance of this cavitation flow is much higher than the one in cavitation-free conditions, a decrease in the value ...

Monitoring a Francis Turbine Operating Conditions

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Seismic Testing of Adjacent Interacting Masonry Structures

Fatigue behavior and life prediction of wind turbine blade composite materials

CFD simulations of hydraulic short-circuits in junctions, application to the Grand’Maison power plant

An experimental investigation of a roof-mounted horizontal-axis wind turbine in an idealized urban environment

A physics-based model for wind turbine wake expansion in the atmospheric boundary layer

The dynamic stall dilemma for vertical-axis wind turbines

Wind turbine wakes on escarpments: A wind-tunnel study

Wind farm layout and unconstrained hub height optimization using genetic algorithms applied to different power densities

Computational parametric analysis of the design of cross-flow turbines under constraints

Exergoeconomic optimization of a solar driven system with reverse osmosis desalination unit and phase change material thermal energy storages

Measurements of Cavitation Compliance in the Draft Tube Cone of a Reduced Scale Francis Turbine Operating at Part Load