Concept

Pouvoir calorifique

Publications associées (63)

Online elemental analysis of process gases with ICP-OES: A case study on waste wood combustion

A mobile sampling and measurement system for the analysis of gaseous and liquid samples in the field was developed. An inductively coupled plasma optical emission spectrometer (ICP-OES), which is built into a van, was used as detector. The analytical syste ...

Elsevier2012

PyroMEMS: Improved Fabrication Methods and Ignition Reliability

David de Koninck

Generating large force/displacement actuators at the millimeter and sub-millimeter scales remains an important challenge for microsystems engineers. One promising solution is to integrate high-energy density solid propellant fuels in microsystems (pyroMEMS ...

EPFL2012

Physical absorption processes modeling and analysis for CO2 capture

Elfie Marie Méchaussie

Within the challenge of mitigating climate change, CO2 capture and storage (CCS) is considered as promising option to reduce the atmospheric CO2 emissions. In power plants three different concepts have emerged: post-combustion applying an end of pipe techn ...

2012

Performance and Profitability Perspectives of a CO2 based District Energy Network in Geneva’s City Center

Daniel Favrat, Céline Weber, Samuel Henchoz

A new type of district energy network capable of providing simultaneously heating and cooling is being investigated. It is based on the use of CO2 as a heat transfer fluid by taking advantage of the latent heat of vaporization, to store and transfer heat a ...

2012

Thermal-diffusive instabilities in unstretched, planar diffusion flames

Peter Monkewitz, Etienne Robert

The recent development of a novel research burner at EPFL has opened the way for experimental investigations of essentially unstretched planar diffusion flames. In particular, it has become feasible to experimentally validate theoretical models for thermal ...

Elsevier2012

Persistent Spin Dynamics Intrinsic to Amplitude-Modulated Long-Range Magnetic Order

Helmuth Berger

An incommensurate elliptical helical magnetic structure in the frustrated coupled-spin-chain system FeTe2O5Br is surprisingly found to persist down to 53(3) mK (T/T-N similar to 1/200), according to neutron scattering and muon spin relaxation. In this stat ...

Amer Physical Soc2012

Ignition and Combustion Behavior in Solid Propellant Microsystems Using Joule-Effect Igniters

Nico de Rooij, Danick Briand, Volker Gass, David de Koninck

A study of solid propellant ignition and combustion of potassium dinitrobenzofuroxanate in Joule-heating pyrotechnical microelectromechanical systems igniters is carried out using a high-speed framing camera. The effect of igniter geometry, propellant form ...

2011

Structure Determination and Compositional Modification of Body-Centered Tetragonal PX-Phase Lead Titanate

Nava Setter, Kurt Schenk, Silviu Cosmin Sandu, Alexandra Sarabando de Carvalho, Jin Wang

The fibrous PX-phase of lead titanate (PT), which can be synthesized by a hydrothermal method, has been studied to clarify its structural aspects on the atomic level. By combining synchrotron X-ray diffraction and electron microscope analysis with a first- ...

2011

Portable LTCC gas viscometer for determining Wobbe number

Peter Ryser, Thomas Maeder, Conor Joseph Slater

This work presents the continued development of an autonomous portable system for measuring the Wobbe number (calorific content) of gases for the purpose of determining the quality of natural gas. Past research has shown the Wobbe number can be determined ...

Elsevier Science, Reg Sales Off, Customer Support Dept, 655 Ave Of The Americas, New York, Ny 10010 Usa2010

Stored Electrogenerated Promoters Inducing Sustainable Enhanced Pt Catalyst Activity

Cyril Falgairette

This work concerns the investigation of the electrochemical promotion of Pt/YSZ catalyst giving more emphasis to the sustainable enhanced catalytic activity after current interruption. The permanent electrochemical promotion (P-EPOC) of C2H4 combustion ove ...

EPFL2010

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