Publications de Daniel Favrat | EPFL Graph Search

From thermoeconomics to environomics and beyond

Modern energy systems are more and more based on integrated technologies in a world evolving towards increasing concerns not only for economics but also for environmental issues with a growing focus on resources and emissions. In parallel, information tech ...

2024

EXERGY EFFICIENCY IS A KEY PERFORMANCE INDICATOR TO RANK ADVANCED ACTIVE ENERGY TECHNOLOGIES AT THE DISTRICT LEVEL

Daniel Favrat

Supplying electricity, heat and cold is an essential part in the development of more sustainable city districts. Previous papers have illustrated the interest of using the exergy efficiency concept to decompose the problem and rank the technology combinati ...

ECOS 20242024

Sofc system with anode off-gas recirculation

Daniel Favrat, Jan Van Herle, Jürg Alexander Schiffmann, Zacharie Wuillemin, Patrick Hubert Wagner

The present invention concerns an SOFC system comprising an anode off-gas recirculation arrangement in which anode off-gas is pumped by a fan or pump of a coaxial turbine-fan assembly, the system comprising a condenser for condensing water contained in sai ...

2020

Evaluation and recommendation of a subsidy instrument for new large hydropower plants, use case of Switzerland

Daniel Favrat, Massimiliano Capezzali, Mélanie Guittet

2018

District heating and cooling energy network using CO2 as a heat and mass transfer fluid

François Maréchal, Daniel Favrat, Luc Girardin, Samuel Henchoz

The 5th generation compact district heating and cooling networks in a temperature range of 10 to 16 °C have a great potential for energy savings by providing a heat source for decentralized heating heat pumps, a cold source for air-conditioning and a heat ...

2018

Novel district heating and cooling energy network using CO2 as a heat and mass transfer fluid

Daniel Favrat, François Maréchal, Luc Girardin, Samuel Henchoz

Compact district energy networks in a temperature range of 10 to 16°C have a great potential for energy savings by providing a heat source for decentralized heating heat pumps, a cold source for air-conditioning and a heat sink for refrigeration or cogener ...

2017

Exergy assessment of future energy transition scenarios with application to Switzerland

François Maréchal, Daniel Favrat, François Richard Vuille, Victor Codina Gironès, Matteo Allais

Using an exergy based indicator is highly desirable to compare future national energy strategies. A new web- based information platform called energyscope.ch, informing the general public on the Swiss energy transition was presented at ECOS2016. This paper ...

2017

Apparatus for salt separation under supercritical water conditions

Daniel Favrat, François Maréchal, Adriano Viana Ensinas, Alberto Mian

Apparatus for salt separation (2) under supercritical water conditions, comprising a heat exchanger (4) and a fluidized bed reactor (6). The fluidized bed reactor comprising a supercritical water pressure containing wall (8) defining therein a fluidized be ...

2016

The information platform energyscope.ch on the energy transition scenarios

Daniel Favrat, François Maréchal, Victor Codina Gironès, François Richard Vuille

Switzerland like many countries plans to undertake an energy transition and the government proposes different paths for 2035 and 2050 to achieve it. However the authors of this paper felt the need for a better information of the public on the energy matter ...

2016

Experimental investigation of a two-stage oil-free domestic Air/Water heat pump prototype powered by an oil-free high-speed twin-stage radial compressor rotating on gas bearings

Daniel Favrat, Jürg Alexander Schiffmann, Jean-Baptiste Carré

Domestic heat pumps have been identified as a key-technology to decrease the energy consumption of the domestic sector, which represents 29% of the world final energy consumption. Space & water heating represent more than two third of the domestic sector e ...

2016