Publication

20 ans de contribution du LENI-EPFL à la recherche sur les pompes à chaleur

Related publications (83)

Design, experimental investigation and multi-objective optimization of a small-scale radial compressor for heat pump applications

Daniel Favrat, Jürg Alexander Schiffmann

The main driver for small scale turbomachinery in domestic heat pumps is the potential for reaching higher efﬁciencies than volumetric compressors currently used and the potential for making the compressor oil-free, bearing a considerable advantage in the ...

2010

Environomic multi-objective optimisation of a district heating network considering centralized and decentralized heat pumps

Daniel Favrat, Adam Molyneaux, Geoffrey Basil Leyland

Concern for the environment has been steadily growing in recent years, and it is becoming more common to include environmental impact and pollution costs in the design problem along with construction, investment and operating costs. To economically respond ...

2010

Methodology for the identification of optimal exploitation schemes of geothermal systems

François Maréchal, Léda Gerber

Shallow and deep geothermal resources can be used to produce different energy services, such as district heating, electricity and cooling. Some of these services vary throughout the year. To provide them, different conversion technologies can be used. In o ...

2010

Modeling and simulation of the operation of a rotary magnetic refrigerator

Didier Albert Simon Vuarnoz, Cyrill Gonin

Magnetic refrigeration is a new environmentally benign technology and a promising alternative to conventional vapor-cycle refrigeration. The household refrigerator without a freezing compartment shows very good prospects for a successful application. This ...

2009

SMD pressure and flow sensors for industrial compressed air in LTCC technology

Peter Ryser, Thomas Maeder, Yannick Sébastien Fournier, Grégoire Boutinard Rouelle

In this work, we propose an SMD (surface mount device) pressure sensor in LTCC technology specially designed for standard industrial compressed air. It combines the measurement of pressure and temperature, with its integrated signal conditioning electronic ...

2009

Low power ORC-ORC systems for heat pump applications

Daniel Favrat, Jonathan Demierre

This paper presents a study of a residential (about 20kW) ORC-ORC (Organic Rankine Cycle) thermally driven heat pump. The system works with three different temperature levels similar to absorption heat pumps. The proposed concept is a hermetic system using ...

2008

Integrated design, optimization and experimental investigation of a direct driven turbocompressor for domestic heat pumps

Jürg Alexander Schiffmann

Heating and cooling will more and more rely on heat pumping in order to enable a more rational use of energy. The further development of domestic and small industrial multi-stage heat pumps with enhanced performance is impaired by the presence of oil mixed ...

EPFL2008

Environomic multi-objective optimisation of a district heating network considering centralized and decentralized heat pumps

Daniel Favrat, Adam Molyneaux, Geoffrey Basil Leyland

2008

The challenge of introducing an exergy indicator in a local low on energy

François Maréchal, Daniel Favrat

Extending the idea of exergy to practitioners and policy makers is still a major challenge. Recently the "Canton of Geneva" in Switzerland introduced a new law governing the procedures of attribution of building permits for new or retrofitted city areas. A ...

2006

Experiences with Hermetic Scroll Compressors with Intermediate Vapor Injection Port in Heat Pumps for High Temperature Lift Heating Applications

Daniel Favrat, Michele Zehnder

In order to extend the application range of air-water heat pumps to high temperature residential heating systems, new small hermetic compressors with remodeled injection ports for vapor injection have successfully been tested in laboratory. The injection f ...

2005

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