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Publications associées (28)

Experimental Hydro-Mechanical Characterization of Full Load Pressure Surge in Francis Turbines

François Avellan, Arthur Tristan Favrel, Christian Landry, Andres Müller, Keita Yamamoto

Full load pressure surge limits the operating range of hydro-electric generating units by causing significant power output swings and by compromising the safety of the plant. It appears during the off-design operation of hydraulic machines, which is increa ...

2017

Waste heat valorisation at multiple scales : focus on in-building waste water and regional heat recovery

Alexandre Suzanne Jean-Marie Bertrand

Considering current environmental issues (e.g. climate change, air pollution) related to energy consumption, this thesis focuses on data characterisation and integrated optimisation methods for waste heat valorisation at the building, city and regional sca ...

EPFL2017

Electrical hubs: An effective way to integrate non-dispatchable renewable energy sources with minimum impact to the grid

Jean-Louis Scartezzini, Dasaraden Mauree, Amarasinghage Tharindu Dasun Perera, Vahid Moussavi Nik

A paradigm change in energy system design tools, energy market, and energy policy is required to attain the target levels in renewable energy integration and in minimizing pollutant emissions in power generation. Integrating non-dispatchable renewable ener ...

Elsevier Sci Ltd2017

Fluid-structure interaction mechanisms leading to dangerous power swings in Francis turbines at full load

François Avellan, Arthur Tristan Favrel, Christian Landry

Hydropower plants play an important regulatory role in the large scale integration of volatile renewable energy sources into the existing power grid. This duty however requires a continuous extension of their operating range, provoking the emergence of com ...

Elsevier2017

Coupled energy economic model framework for analyzing Swiss electricity markets in changing policy environments

Sophie Maire

Energy policy needs to rely on the proper understanding of the interactions between policy instruments, consumer preferences, investment behavior, market structure, electricity supply, and the wider policy environment. This asks for appropriate modeling to ...

EPFL2016

Optimum design and control of grid integrated electrical hubs considering lifecycle cost and emission

Jean-Louis Scartezzini, Dasaraden Mauree, Amarasinghage Tharindu Dasun Perera, Vahid Moussavi Nik

Grid connected renewable energy systems are becoming popular due to reasons such as rapid escalation of energy prices, depletion of fossil fuel resources and pollutant emitted by conventional energy sources. Therefore, technologies for incorporating renewa ...

Ieee2016

The critical role of risk in setting directions for water, food and energy policy and research

François Richard Vuille

The sustainable development goals (SDGs) challenge markets, regulators and practitioners to achieve multiple objectives on water, food and energy. This calls for responses that are coordinated and scaled appropriately. Learning from water-energy-food nexus ...

Elsevier Sci Ltd2016

Thermo-economic optimization of a combined cooling, heating and power system based on small-scale compressed air energy storage

François Maréchal, Ligang Wang, Erren Yao

Energy storage systems are important for dealing with the fluctuation of renewable energies in course of their increasing penetration into the energy market. Small-scale compressed air energy storage (CAES) with artificial air vessels can improve the suppl ...

Elsevier2016

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