Concept

Cycle frigorifique

Publications associées (184)

Experimental investigation of electrical domestic heat pumps equipped with a twin-stage oil-free radial compressor

The world energy consumption has dramatically increased since the end of the World War II. The main share of this energy comes from fossil fuel combustion. The worldwide domestic sector consumes about 30% of the global energy supply and the biggest share o ...

EPFL2015

Solar fuel processing efficiency for ceria redox cycling using alternative oxygen partial pressure reduction methods

Sophia Haussener, Meng Lin

Solar-driven non-stoichiometric thermochemical redox cycling of ceria for the conversion of solar energy into fuels shows promise in achieving high solar-to-fuel efficiency. This efficiency is significantly affected by the operating conditions, e.g. redox ...

Pergamon-Elsevier Science Ltd2015

Response of soil subjected to thermal cyclic loading: experimental and constitutive study

Lyesse Laloui, Alice Di Donna

The response of soil subjected to thermal cyclic loading plays an important role in certain engineering applications, such as high-level nuclear waste disposal, heat storage systems, CO2 sequestration plant and energy geostructures. For instance, energy ge ...

Elsevier2015

Dynamic analysis of the low-temperature district network "Suurstoffi" through monitoring

Nadège Vetterli

The Lucerne University of Applied Sciences has been analysing and monitoring the low- temperature district heating and cooling network (LTN) “Suurstoffi” since 2012. The analysis showed that heating demand was twice as high as expected. On the other hand, ...

LESO-PB, EPFL2015

Centrifuge modelling of heating effects on energy pile performance in saturated sand

Lyesse Laloui, Chao Shi

The operation of energy pile in summer can expel excessive heat of the buildings into the ground by the use of a heat pump. Despite of having been implemented for decades, the design of energy pile still relies heavily on empiricism as there is still limit ...

National Research Council Canada2015

Experimental investigation of a Thermally Driven Heat Pump based on a double Organic Rankine Cycle and an oil-free Compressor-Turbine Unit

Daniel Favrat, Jürg Alexander Schiffmann, Jonathan Demierre, Johannes Wegele

This paper presents the experimental investigation of a concept of Thermally Driven Heat Pump (TDHP), based on the coupling of a vapor compression heat pump cycle and an Organic Rankine Cycle (ORC). The studied concept uses a single stage centrifugal compr ...

Elsevier2014

3D ALE Finite-Element Method for Two-Phase Flows With Phase Change

John Richard Thome, Navid Borhani, Gustavo Rabello Dos Anjos

We seek to study numerically two-phase flow phenomena with phase change through the finite-element method (FEM) and the arbitrary Lagrangian-Eulerian (ALE) framework. This method is based on the so-called one-fluid formulation; thus, only one set of equati ...

Taylor & Francis2014

Breathing building: A decentralized façade-integrated solar air-conditioning system

Didier Albert Simon Vuarnoz

A decentralized adaptive solar air conditioning system is presented, which contains usual air-conditioning equipment and a new module, designed with a honeycomb structure, containing phase change material for latent thermal cold and hot energy storage. Hea ...

2014

Role of total site integration in energy-target modification of distillation columns

François Maréchal, Nasibeh Pouransari

This paper investigates the energy efficiency improvement of an industrial site through thermodynamic analysis of distillation columns together with the total site integration (TSI). Unlike the existing methods which consider the distillation unit exclusiv ...

Elsevier2014

Design and Optimization of an Innovative Solid Oxide Fuel Cell-Gas Turbine Hybrid Cycle for Small Scale Distributed Generation

François Maréchal, Daniel Favrat, Emanuele Facchinetti

Distributed power generation and cogeneration is an attractive way toward a more rational conversion of fuel and biofuel. The fuel cell-gas turbine hybrid cycles are emerging as the most promising candidates to achieve distributed generation with comparabl ...

Wiley-Blackwell2014

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