Concept

Geothermal heating

Publications associées (143)

Integrated Thermo-Economic Modelling of Geothermal Resources for Optimal Exploitation Scheme Identification

This paper details the development of a systematic methodology using thermo-economic modeling that can be used to identify the optimal exploitation schemes of geothermal resources. A multi-period approach is used, integrating the superstructure of exploita ...

2010

Strategy for the identification of optimal exploitation schemes of geothermal systems

François Maréchal, Léda Gerber

Shallow or deep geothermal resources can be used to produce different energy services: district heating, electricity and cooling. The combined production of these services is done using conversion technologies, such as flash systems, binary cycles or heat ...

2010

Fluid Manipulation Using Thermoexpandable Polymer Based on Ploydimethylsiloxane and Expancel

Lynda Metref

Nowadays, manipulation of liquids in miniaturised environments finds applications in many fields in biology and medicine such as diagnostics, toxicity analysis, drug delivery and so on. In those domains, the use of disposable devices has the great advantag ...

EPFL2010

Understanding the thermo-mechanical response of heat exchanger piles

Lyesse Laloui, Hervé Péron, Mathieu Nuth

Although the adaptation of deep foundations into heat exchangers is receiving growing attention, geothermal research is focusing mostly on energy optimization aspects. Meanwhile, the primary bearing function of the foundation must remain unaltered. Also, p ...

International Centre for Computational Engineering2009

Integrated Thermo-economic Modeling of Geothermal Resources for Optimal Exploitation Scheme Identification

To be profitable, a geothermal energy system must effectively and economically convert a given resource into useful energy services to be delivered to the consumer during different periods of the year. These services include electricity, district heating, ...

2009

Methodology for the integration of low temperature district network in urban area

François Maréchal, Luc Girardin, Nicole Calame

The energy services delivered to urban areas in Switzerland make up more than 45% of the national energy consumption. Thus, in the framework of the Tetraener European project, a methodology has been developed to design low temperature thermal networks base ...

2009

Large Eddy Simulation of a compressible flow in a locally heated square duct

This paper presents Large Eddy simulations of a compressible turbulent flow through a duct of square cross- section with a discrete heating source on its bottom wall. The potential interest is related to numerous engineering applications. In the first part ...

2009

Optical selective coating for solar absorbers

Andreas Schueler, Martin Python, Martin Joly, Yannik Antonetti

Solar thermal energy is generally accepted as very energy efficient in providing space heating and cooling, desalination of sea water or solar thermal electricity generation. For all these applications, one of the key elements is the optical selective coat ...

EPFL2009

GIS-based method for groundwater management and protection: geotypes serving 3D applications

Aurèle Parriaux, Séverine Bilgot

Sustainable management of underground natural resources is more and more a worthwhile topic. In particular, worrying about groundwater protection becomes imperative. Taking into account the increase of incompatibilities between water conservation and the u ...

2009

Investigations on the mechanical behavior of a heat exchanger pile

Lyesse Laloui, Mathieu Nuth

The geothermal use of concrete geostructures (piles, walls and slabs) is an environmentally friendly way of cooling and heating buildings. With such geothermal structures, it is possible to transfer energy from the ground to fluid-filled pipes cast in conc ...

Crc Press-Taylor & Francis Group, 6000 Broken Sound Parkway Nw, Ste 300, Boca Raton, Fl 33487-2742 Usa2008

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