Concept

Énergie des vagues

Publications associées (125)

Contractile floating barriers for confinement and recuperation of oil slicks

Marine oil spills can cause serious environmental damages to natural resources and to those whose sustenance depends upon these resources. Unfortunately experience shows that even the best efforts have not prevented occasional occurrences of major accident ...

EPFL2007

Evaluation of Natural Gas Combined Cycle Plants in China through Environomic Modeling and Multi-objective Optimization

François Maréchal, Daniel Favrat, Hongtao Li

Due to the requirements of lower capital investment, higher operational flexibility, and the pressures from environmental legislations on local pollutants and global greenhouse gases (GHGs) emissions, power generation market is in favour of natural gas bas ...

2007

ADVANCED POWER CONVERTER FOR UNIVERSAL AND FLEXIBLE POWER MANAGEMENT IN FUTURE ELECTRICITY NETWORK

Alfred Rufer

More “green” power provided by Distributed Generation will enter into the European electricity network in the near future. In order to control the power flow and to ensure proper and secure operation of this future grid, with an increased level of the rene ...

2007

Development of electrostatic turbulence from drift-interchange instabilities in a toroidal plasma

Ambrogio Fasoli, Mario Ludovico Podesta, Francesca Maria Poli

Electrostatic instabilities develop on TORPEX (TORoidal Plasma EXperiment) [A. Fasoli et al., Phys. of Plasmas, 13, 55902 (2006)] in the bad curvature region and propagate consistently with the drift wave dispersion relation. The wave number and frequency ...

2007

Hydro-pneumatic Energy Storage Systems for Renewable Sources Support: Principle, Efficiency Optimisation, Possible topologies

Alfred Rufer

1 Principle of Pneumatic Energy Storage 2 Optimisation of the Pneumatic-to-Mechanical Energy Conversion 4 Strategy for Power Flexibility: Hybrid Storage 5 Overall Efficiency and Possible Topologies 6 Economical Considerations ...

2006

Efficiency of Brushwood fences in shore protection against wind-wave induced erosion

Selim Sayah

Shore protection in confined water bodies is of major importance in Switzerland where many lakes suffer severe shore erosion. It occurs mainly in shallow zones due to several reasons such as: the fluctuations of the water level , the wind-wave impact durin ...

EPFL2006

Piezoelectric anisotropy and free energy instability in classic perovskites

Marko Budimir

Several members of the perovskite family are investigated: the temperature dependence of dielectric, elastic, piezoelectric and coupling coefficients of KNbO3 in its orthorhombic ferroelectric phase is determined experimentally; the values of dielectric st ...

EPFL2006

Third-harmonic X-mode, real-time controlled top-launch ECW experiments on TCV Tokamak

Yves Martin, Stefano Alberti, Laurie Porte, Alexander Karpushov, Richard Pitts, Gilles Arnoux, Alessandro Bortolon

In the moderate magneticfield of TCV (1.5T), the recently installed X3 system (3 gyrotrons @118 GHz, 0.45 MW/each, 2s) broadens the operational space with the possibility of heating plasmas at high density, well above the cutoff density of the X2 system (X ...

2005

Global regularity of wave maps from $R^{2+1}$ to $H^2$. Small energy

Joachim Krieger

We demonstrate that Wave Maps with smooth initial data and small energy from R2+1 to the Lobatchevsky plane stay smooth globally in time. Our method is similar to the one employed in [18]. However, the multilinear estimates required are considerably more i ...

Springer Verlag2004

Voltage drop compensation for weak distribution systems : Simulation for study and implementation

Alfred Rufer, Philippe Barrade

Supercapacitor represent one of the newest innovations in the field of electrical energy rtorage, and are subject of several developments in the industry for many different and news applications. Supercapacitors, which can supply a high instantaneous power ...

2002

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