Publications associées à Énergie hydraulique

Prediction of hydro-acoustic resonances in hydropower plants by a new approach based on the concept of swirl number

François Avellan, Christophe Nicolet, Arthur Tristan Favrel, Christian Landry, Sébastien Alligné, Loïc Andolfatto, Joao Gomes Pereira Junior

Hydropower plant units operating in off-design conditions are subject to cavitation flow instabilities, potentially inducing hydro-acoustic resonances under certain conditions. They can be predicted by using one-dimensional numerical models of hydropower p ...

2019

Potential increase in energy storage capacity in the Swiss Alps to support the massive development of renewables: Case study of the Grande Dixence hydropower scheme

Anton Schleiss, Pedro Filipe De Almeida Manso, Jérôme François Sylvain Dujardin, Blaise Monay

Only 42 % of the mean annual production of large hydropower plants in the Swiss Alps is stored in their reservoirs. Once the reservoirs are full at the end of the summer semester, plants are operated as run-on-the-river in order to avoid spilling. A signif ...

2019

Hydropeaking mitigation measures in the Swiss Upper-Rhône basin

Pedro Filipe De Almeida Manso, Sabine Chamoun, Mathieu Pierre Guy Barnoud, Steve Crettenand

Hydropower operations can cause hydropeaking particularly in the case of pumped storage systems located in mountainous regions. Due to the rapidly varying discharge conditions, hydropeaking leads to several problems such as stranding of fishes and inverteb ...

2019

Introducing flexibility in alpine small hydropower plants using smart storage

Pedro Filipe De Almeida Manso, Jessica Zordan, Steve Crettenand

Small hydropower plants can improve their proficiency if they are able to become more flexible on power production, answering the need of peak energy demand, following the needs of the energy market and providing ancillary services in the electricity suppl ...

Hydropower&Dams, Aqua Media International2019

Balancing hydropeaking mitigation and hydropower production

Giovanni De Cesare, Pedro Filipe De Almeida Manso, Sabine Chamoun, Mathieu Pierre Guy Barnoud

Around 60% of Switzerland’s power production is provided by hydropower. Despite its numerous advantages, the high fluctuations in turbined discharges cause hydropeaking at downstream rivers. Due to the environmental impacts of hydropeaking on fauna and flo ...

2019

Analysis of emerging technologies in the hydropower sector

François Avellan

The paper reviews recent research and development activities in the field of hydropower technology. It covers emerging and advanced technologies to mitigate flow instabilities (active and passive approach) as well as emerging magneto-rheological control te ...

PERGAMON-ELSEVIER SCIENCE LTD2019

Numerical analysis for detecting head losses in trifurcations of high head in hydropower plants

François Avellan, Ramiro Gustavo Ramirez Camacho

Many different types of branching have been developed, such as bifurcation, trifurcation, and manifolds, among others. These configurations are used in penstocks to transport water from surge tanks to power houses in order to feed several turbines at the s ...

PERGAMON-ELSEVIER SCIENCE LTD2019

Reduced scale model testing for prediction of eigenfrequencies and hydro-acoustic resonances in hydropower plants operating in off-design conditions

François Avellan, Christophe Nicolet, Arthur Tristan Favrel, Christian Landry, Sébastien Alligné, Joao Gomes Pereira Junior

The massive penetration of the electrical network by renewable energy sources, such as wind and solar, pushes the operators to extend hydropower plant units operating range to meet the transmission system operator requirements. However, in off-design opera ...

2019

Improving hydropower flexibility by synergizing independently managed utilities

Giovanni De Cesare, Pedro Filipe De Almeida Manso, Sabine Chamoun, Vincent Gaertner, Steve Crettenand

Increasing the flexibility of hydropower allows operators to produce at optimal time ranges, not only dependent on the demand flow but also on the price trends. However, the possibility to improve hydropower flexibility can be hindered when assets are mana ...

Hydropower&Dams, Aqua Media International2019

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Énergie hydraulique

Prediction of hydro-acoustic resonances in hydropower plants by a new approach based on the concept of swirl number

Potential increase in energy storage capacity in the Swiss Alps to support the massive development of renewables: Case study of the Grande Dixence hydropower scheme

Hydropeaking mitigation measures in the Swiss Upper-Rhône basin

Introducing flexibility in alpine small hydropower plants using smart storage

Balancing hydropeaking mitigation and hydropower production

Analysis of emerging technologies in the hydropower sector

Predicting the dynamic behavior of Francis turbine generating units

Numerical analysis for detecting head losses in trifurcations of high head in hydropower plants

Reduced scale model testing for prediction of eigenfrequencies and hydro-acoustic resonances in hydropower plants operating in off-design conditions

Improving hydropower flexibility by synergizing independently managed utilities

Graph Chatbot

Chattez avec Graph Search

Balancing hydropeaking mitigation and hydropower production

Potential increase in energy storage capacity in the Swiss Alps to support the massive development of renewables: Case study of the Grande Dixence hydropower scheme

Hydropeaking mitigation measures in the Swiss Upper-Rhône basin

Introducing flexibility in alpine small hydropower plants using smart storage

Predicting the dynamic behavior of Francis turbine generating units

Numerical analysis for detecting head losses in trifurcations of high head in hydropower plants

Reduced scale model testing for prediction of eigenfrequencies and hydro-acoustic resonances in hydropower plants operating in off-design conditions

Improving hydropower flexibility by synergizing independently managed utilities

Prediction of hydro-acoustic resonances in hydropower plants by a new approach based on the concept of swirl number

Analysis of emerging technologies in the hydropower sector