Concept

High-temperature gas reactor

Related publications (115)

ODS steel as structural material for high temperature nuclear reactors

Manuel Alexandre Pouchon, Wolfgang Hoffelner

Oxide dispersed strengthened (ODS) ferritic-martensitic steels are investigated as possible structural material for the future generation of High Temperature Gas Cooled Nuclear Reactors. The Ni based austenitic ODS superalloys are not considered, because o ...

2005

Optimizing the solar photo-fenton process in the treatment of contaminated water. Determination of intrinsic kinetic constants for scale-up

César Pulgarin

The elimination of aromatic compounds present in surface water by photo-Fenton with sunlight as the source of radiation was studied. The concentrations of Fe3+ and H2O2 are key factors for this process. A solar simulator and a prototype parabolic collector ...

2005

Thermal treatment of metal-enriched biomass produced from heavy metal phytoextraction

Christian Ludwig, Catherine Keller

Phytoextraction is an environmentally sound method for cleaning up sites that are contaminated with toxic heavy metals. However, the method has been questioned because it produces a biomass-rich secondary waste containing the extracted metals. Therefore, f ...

2005

Present development status of EUROFER and ODS-EUROFER for application in blanket concepts

Cyril Cayron, Nadine Baluc

Within the European Union, the two major breeding blanket concepts presently being developed are the helium cooled pebble bed (HCPB), and the helium cooled lithium lead (HCLL) blankets. For both concepts, different conceptual designs are being discussed wi ...

2005

Développement d'un réacteur microstructuré basé sur des filaments métalliques catalytiques

Chrystèle Horny

The aim of this work is to develop a microstructured reactor based on filamentous catalysts for the Oxidative Steam-Reforming of Methanol (OSRM), to produce hydrogen as feed for a fuel cell, in an autothermal way. Hydrogen is produced by the methanol Steam ...

EPFL2005

Trajectory Following for the Optimization of a Batch Polymerization Reactor

Dominique Bonvin, Grégory François, Carsten Welz, David Hunkeler

This paper considers the minimization of batch time for an industrial inverse-emulsion polymerization reactor in the presence of uncertainty. A first optimization study resulted in the current industrial practice of a semi-adiabatic profile (isothermal ope ...

2004

Reaction Calorimetry as a New Tool for Supercritical Fluids

Thierry Meyer, Sophie Fortini, Frédéric Lavanchy

Reaction calorimetry is an efficient tool used to obtain kinetic, thermodn., and safety data. A new tool, composed of a high-pressure reactor (HP350) coupled with a Mettler-Toledo RC1e reaction calorimeter, is developed for the investigation of chem. react ...

2004

Experimental Determination of the Ratio of 238U Capture to 235U Fission in LEU-HTR Pebble-Bed Configurations

Rakesh Chawla

The shift toward low-enrichment uranium (LEU) fuel for gas-cooled high-temperature reactors (HTRs) has revealed a lack of experimental data for validating neutronics codes that are used for the design and licensing of such systems. In the framework of the ...

American Nuclear Society2004

Plutonium management in the medium term

Rakesh Chawla

For many years various countries with access to commercial reprocessing services have been routinely recycling plutonium as UO2/PuO 2 mixed oxide (MOX) fuel in light water reactors (LWRs). This LWR MOX recycle strategy is still widely regarded as an interi ...

American Nuclear Society2004

Dynamic optimization of batch emulsion polymerization using simulated annealing

Grégory François

The aim of this paper is to present a global approach to dynamic optimization of batch emulsion polymerization reactors using a stochastic optimizer. The objective is to minimize the final batch time with constraints on the final conversion and molecular w ...

2004

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