Concept

Recirculation des gaz d'échappement

Publications associées (98)

Potential of Small-Scale Turbomachinery for Waste Heat Recovery on Automotive Internal Combustion Engines

Jürg Alexander Schiffmann, Eliott Philippe Guenat, Violette Mounier, Kévin Rosset

This paper investigates the waste heat recovery potential of internal combustion engines, using organic Rankine cycles running on small-scale radial turbomachinery. ORC are promising candidates for low-grade thermal sources and the use of dynamic expanders ...

2015

Experimental investigation of neon seeding in the snowflake configuration in TCV

Basil Duval, Holger Reimerdes, Benoît Labit, Marco Wischmeier, Federico Nespoli, Wouter Vijvers

Recent TCV experiments have examined the effect of the poloidal field strength in the vicinity of the x-point of diverted configurations on their ability to radiate a large fraction of the exhaust power. A larger region of low poloidal field is a key chara ...

Elsevier Science Bv2015

Towards the Next-Generation of Solid Oxide Fuel Cell Systems

Jan Van Herle, Jürg Alexander Schiffmann, Stefan Diethelm, Zacharie Wuillemin, Patrick Hubert Wagner, Vaibhav Singh

To improve the industry benchmark of solid oxide fuel cell systems (SOFC), we consider anode off-gas recirculation using a blower as an add-on to our next-generation SOFC system. Evolutionary algorithms compare the different design alternatives, i.e. co-fl ...

Electrochemical Society2015

TCV heating and in-vessel upgrades for addressing DEMO physics issues

Ambrogio Fasoli

TCV is presently undergoing major heating upgrades, installing a neutral beam for direct ion heating and increasing the electron cyclotron(EC) power injected in X-mode at the third harmonic(X3). The neutral beam is under construction at BINP-Plasma LLC(Rus ...

Iop Publishing Ltd2015

Overview of MAST results

Jonathan Graves, Wilfred Anthony Cooper, Mario Ludovico Podesta, Jan Horacek, Ben McMillan, Ricardo Pérez Suárez, Otto Asunta

The Mega Ampere Spherical Tokamak (MAST) programme is strongly focused on addressing key physics issues in preparation for operation of ITER as well as providing solutions for DEMO design choices. In this regard, MAST has provided key results in understand ...

Iop Publishing Ltd2015

European roadmap to the realization of fusion energy: Mission for solution on heat-exhaust systems

Holger Reimerdes

Horizon 2020 is the largest EU Research and Innovation programme to date. The European fusion research programme for Horizon 2020 is outlined in the "Roadmap to the realization of fusion energy" and published in 2012 [1]. As part of it, the European Fusion ...

Elsevier Science Sa2015

Power exhaust in the snowflake divertor for L- and H-mode TCV tokamak plasmas

Basil Duval, Stefano Coda, Holger Reimerdes, Benoît Labit, Wouter Vijvers

The snowflake (SF) divertor is a plasma configuration that may enable tokamak operation at high performance and lower peak heat loads on the plasma-facing components than a standard single-null divertor. This paper reports on the results of experiments per ...

2014

Effect of ammonia on the decomposition of ammonium formate over Au/TiO2 under oxidizing conditions relevant to SCR: Enhancement of formic acid decomposition rate and CO2 production

Oliver Kröcher

Ammonium formate (AmFo) and formic acid decomposition were carried out in the presence of excess O-2 and H2O over 0.5 wt%Au/TiO2 anatase monolithic catalysts using various contact times and temperatures between 160 degrees C and 300 degrees C, under spray ...

Elsevier Science Bv2014

Sorption kinetics and equilibrium of the herbicide diuron to carbon nanotubes or soot in absence and presence of algae

Arnaud Magrez, Laura Sigg

Carbon nanotubes (CNT) are strong sorbents for organic micropollutants, but changing environmental conditions may alter the distribution and bioavailability of the sorbed substances. Therefore, we investigated the effect of green algae (Chlorella vulgaris) ...

Elsevier Sci Ltd2014

Ammonia Storage and Release in SCR Systems for Mobile Applications

Oliver Kröcher

In mobile SCR applications, the most widespread reducing agent is ammonia. However, due to its toxicity it is not stored directly as pressurized or liquefied gas. Instead, an aqueous solution of 32.5 wt % urea is commonly used as ammonia precursor. The ure ...

Springer New York2014

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