Publication

Performance of energy piles foundation in hot-dominated climate: A case study in Dubai

Publications associées (81)

Methodology for the identification of optimal exploitation schemes of geothermal systems

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

Development and application of a numerical simulation system to evaluate the impact of anthropogenic heat fluxes on urban boundary layer climate

Andrea Krpo

Increasing economic development, and growing population, generated during the last decades a very important growth of cities. Urban regions include nowadays more than half of the global population and, by 2030, this proportion is forecasted to increase to ...

EPFL2009

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

Transient Thermal Model of a Medium Frequency Power Transformer

Alfred Rufer, Irma Villar

Nowadays medium voltage conversion systems, like traction and energy distribution systems, aim to increase power density. Volume, weight and material reduction are gaining the market today. Due to the development of new high power semi-conductor devices a ...

2008

On the Sensitivity of Building Performance to the Urban Heat Island Effect

Darren Robinson, Alain Clappier, Adil Rasheed

Current practice in building simulation is to use historic climate data which has been measured in rural locations. However, numerous measurement programs have demonstrated that the urbanrural temperature difference can be of several degrees Kelvin, with c ...

EPFL2007

Energy conversion processes for the use of geothermal heat - Final report

François Maréchal, Luc Girardin

The study deals with theoretical as well as with practical aspects of the conversion of geothermal heat to electricity. The report is divided into three parts: • Part I: General study • Part II: Practical experience: planning & operation of geothermal powe ...

2007

Microclimatic factors influencing refugium suitability for Rhodnius prolixus

Thierry Jean Heger

Rehydration in the triatomine bug Rhodnius prolixus (Stal) is dependent on the blood meal, and water balance regulation is crucial for survival of starving bugs. In an experimental arena with zones at different climatic conditions, starved R. prolixus nymp ...

2006

Capteur chimique à fibres optiques pour la mesure des ions chlore dans le béton à un stade précoce

Francine Laferrière

In the national and worldwide context, countless reinforced concrete structures are in an advanced state of deterioration. A principal cause of such degradation is chloride induced corrosion of reinforcement bars. This phenomenon is accentuated in countrie ...

EPFL2005

Process for avoiding cracking in welding

Michel Rappaz, Wilfried Kurz, Jean-Daniel Wagnière

The new welding process avoids cracking in welding, in repair welding or in cladding of parts of metallic alloys which are sensitive to hot cracking. The process is using a first heat source (15), directed to the parts (11, 12) of the metallic alloy formin ...

2003

A Tool for Optimal Synthesis of Industrial Refrigeration Systems : Application to an Olefins Plant.

François Maréchal

Olefins Plants show an intrinsic cost of the energy demand which derives from Process and Plant design. Few innovative changes have been implemented in the past decades. Such changes were mainly directed to increasing the throughput of the plant and its fl ...

2002

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