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Experimental and numerical investigation of the thermo-mechanical behaviour of an energy sheet pile wall

Publications associées (36)

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Cyclic Load – Transfer Approach for the Analysis of Energy Piles

Lyesse Laloui, Melis Sütman

Energy piles, due to their unique roles of coupling the structural support and heat exchange with the surrounding ground, are subject to temperature cycles during their lifetime. Although their behaviour during individual temperature increase or decrease h ...

2018

Energy piles are subjected to short- and long-term cyclic thermal loads due to their unique role as heat exchangers. Their response to monotonic temperature change has been investigated by various researchers from both experimental and numerical points of ...

2018

The behaviour of conventional pile groups (e.g. closely spaced) that are subjected to mechanical loads has been shown to be different from the behaviour of single isolated piles. The so-called 'group effects' are responsible for this behaviour and must be ...

Ice Publishing2017

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Energy piles are rapidly gaining acceptance around the world because they represent a renewable and clean source of energy that can be used for the heating and cooling of buildings, and the de-icing of infrastructures. This technology couples the structura ...

Elsevier2016

Combining Geographical Information Systems and Optimization for Geothermal Energy Integration in Urban Systems - The case study of the City of Lausanne

Jérémy Michel Pierre Unternährer

In the urban areas of Europe and USA, a significant part of the final energy consumption corresponds to the buildings heat demand. Given the challenges related to climate change, to energy security and dependency from fossil fuels, modifications of the ene ...

2016

Analysis of thermally induced mechanical interactions in energy pile groups

Lyesse Laloui, Alessandro Francesco Rotta Loria

This study investigates the thermally induced mechanical interactions among closely spaced energy piles that partially operate as geothermal heat exchangers over a time-scale that is typical of practical applications. The analysis is based on the results o ...

CRC Press2016

Estimating soil thermal diffusivity with interference analyses

Lyesse Laloui, Thomas Mimouni

The development of ground source heat pumps has facilitated the use of geothermal power at shallow depths. Initially, ground heat exchangers were buried in trenches or boreholes, but recent investigations and increasing congestion of landscapes have sugges ...

Springer Verlag2015

In the framework of the GEOTHERM II, a joint effort of geoscience, engineering and social-science of academic and public partners, the integration of geothermal energy in urban systems is evaluated. A superstructure was defined for the case study of the ci ...

2015

Geothermal Energy

François Maréchal, Stefano Moret

Introduction to geothermal energy: what is geothermal energy, main applications (heat pumping, direct use, electricity production and cogeneration), geothermal resources, geothermal power plants. ...

2015

New technologies and applications: materials and equipment in near surface geothermal systems

Lyesse Laloui, Fabrice Dupray, Thomas Mimouni, Melis Sütman

This paper presents an overview of new technologies and applications on thermoactive geostructures. A discussion session on issues involved with near surface geothermal systems is presented, focusing on opportunities for developing new technologies to addr ...

2014