Concept

Lac de barrage

Publications associées (130)

VENTING OF TURBIDITY CURRENTS: WHEN TO ACT?

During floods, sediments are transported from watersheds into reservoirs, slowly decreasing water volumes and this leading to economic losses. Thus, in the long term, sedimentation endangers reservoirs’ sustainability. Sediments can also block low-level hy ...

2017

Influence of outlet discharge on the efficiency of turbidity current venting

Sabine Chamoun

Sediment yield into reservoirs was underestimated during the design of dams in the past. As a result, today, reservoir sedimentation is endangering the sustainability of dams. Moreover, the obstruction of rivers hinders their capacity to transport sediment ...

EPFL2017

Tapping hidden hydropower potential in Swiss Alpine catchments in the context of the planned nuclear power phase out

Anton Schleiss, Pedro Filipe De Almeida Manso, Bettina Schaefli, Ana Clara Pereira Barbosa Santos

In its Energy Strategy 2050, Switzerland is revising its energy perspectives with a strong focus on renewable sources of energy and in particular hydropower. In this context, the Swiss Government funded a number of competence centers for energy research (S ...

2017

Assessing the potential increase of seasonal energy storage to mitigate the impact of climate change in Switzerland: Case study of the Grande Dixence dam

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

The total storage capacity of the reservoirs in Switzerland represents only 42% of their annual production of electricity, but secures approximately 100% of hydropower’s contribution to the winter electricity supply. In order to avoid spilling, the storage ...

2017

Venting turbidity currents for the sustainable use of reservoirs

Anton Schleiss, Giovanni De Cesare, Sabine Chamoun

Reservoir sedimentation is an ongoing issue, which endangers the sustainability of reservoirs. As well as reducing the capacity of a reservoir, sedimentation causes damage to hydraulic structures such as turbine intakes and bottom outlets. In addition, dow ...

2016

’Hydro-peaking mitigation measures: Performance of a complex compensation basin considering future system extensions

Anton Schleiss, Pedro Filipe De Almeida Manso

Many Alpine rivers are affected by hydro-peaking, strong sub-daily fluctuations of discharge caused by intermittent power production from hydropower plants. Adding a retention volume at the outlet of a hydropower plant aims at attenuating hydro-peaking to ...

2016

Piano Key Weir for Enlargement of the West Fork of Eno River Reservoir

Michael Pfister

The West Fork of Eno River Reservoir Dam is located near Hillsborough, North Carolina, USA. The earthen embankment dam provides an impoundment used by the town for water supply. The project was originally completed in 2000 with forethought by the owner for ...

2016

Reservoir sedimentation

Anton Schleiss, Giovanni De Cesare, Mário Jorge Rodrigues Pereira Da Franca, Carmelo Juez Jiménez

Artificial water storage, originated by the construction of dams, is essential for the sustainable health and welfare of civilizations since it supplies water for human consumption, irrigation and energy production. Furthermore, dam reservoirs are used for ...

Taylor & Francis Ltd2016

Laboratory research: bed load guidance into sediment bypass tunnel inlet

Anton Schleiss, Giovanni De Cesare, Pedro Filipe De Almeida Manso, Milad Daneshvari

Sediment management in reservoirs situated in mountainous regions is a critical operational concern with direct implications in live storage sustainability and therefore in production revenues. The paper presents the main results of a physical model study ...

R.M. Boes ed.2015

Karahnjukar dam spillway: Comparison of operational data and results from hydraulic modelling

Michael Pfister

The Karahnjukar dam spillway is the spillway for the Halslon reservoir, the main reservoir for the 690 MW Karahnjukar Hydroelectric Project in East Iceland. The spillway consist of a 140 m long overflowing weir with a capacity of 2250 m3/s which discharges ...

2015

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