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Publications associées (115)

Design, Fabrication and Characterization of a Gas Processing Unit Testing Platform for Micro-Solid Oxide Fuel Cells

Paul Muralt, Thomas Maeder, Bo Jiang, Dimos Poulikakos

Micro-scale solid oxide fuel cell is a promising power generation technology for portable devices such as laptop, medical devices and personal electronics. One of the key goals in design of μ-SOFC systems is to use common hydrocarbon fuels such as propane/ ...

Elsevier Science, Reg Sales Off, Customer Support Dept, 655 Ave Of The Americas, New York, Ny 10010 Usa2011

FAST code system: Review of recent developments and near-future plans

Rakesh Chawla, Konstantin Mikityuk, Aurélia Chenu, Jiri Krepel, Petr Petkevich

The FAST code system is currently being developed and used at the Paul Scherrer Institut for static and transient analysis of the main Generation 4 fast-spectrum reactor concepts: sodium-, helium-, and gas-cooled fast reactors. The code system includes the ...

American Society of Mechanical Engineers2010

Heavy-gas injection in the Generation IV gas-cooled fast reactor for improved decay heat removal under depressurized conditions

Rakesh Chawla, Konstantin Mikityuk, Aaron Simon Epiney

Decay heat removal is a key safety and design issue for the Generation IV gas (helium)-cooled fast reactor. This paper investigates the natural convection capability of the dedicated DHR loops under depressurized conditions while injecting a heavy gas into ...

Elsevier2010

TRACE qualification via analysis of the EIR gas-loop experiments with smooth rods

Rakesh Chawla, Konstantin Mikityuk, Aaron Simon Epiney

Several gas-loop experimental programs were carried out during the 1970-1980s at the Eidgenossisches Institut fur Reaktorforschung (EIR, now PSI), Switzerland. In the present work, a wide range of thermalhydraulics tests for smooth rods, which form part of ...

Elsevier2010

Microstructured Catalytic Reactors

Albert Renken, Lioubov Kiwi

This chapter is a summary of recent advances in microreactors, which have become increasingly important in process development and chemical research. Microstructured chemical reactors are characterized by dimensions in the submillimeter range and, thus. su ...

2010

Structured catalytic wall microreactor for efficient performance of exothermic reactions

Lioubov Kiwi, Bryan Bromley, Marina Ruta, Turan Eslanloo Pereira

A novel microreactor with structured catalytic wall (SCWMR) has been developed for highly exothermic, gas/solid reactions and tested for the selective acetylene hydrogenation. The reactor design is similar to the so-called "slit microreactor". The structur ...

Elsevier2010

CFD modelling of liquid–liquid multiphase microstructured reactor: Slug flow generation

Albert Renken, Lioubov Kiwi, Madhvanand Namadeo Kashid

Microreactor technology, an important method of process intensification, offers numerous potential benefits for the process industries. Fluid–fluid reactions with mass transfer limitations have already been advantageously carried out in small-scale geometr ...

Elsevier2010

Improvement of the Decay Heat Removal Characteristics of the Generation IV Gas-cooled Fast Reactor

Aaron Simon Epiney

Gas cooling in nuclear power plants (NPPs) has a long history, the corresponding reactor types developed in France, the UK and the US having been thermal neutron-spectrum systems using graphite as the moderator. The majority of NPPs worldwide, however, are ...

EPFL2010

Effective interfacial area for mass transfer in the liquid-liquid slug flow capillary microreactors

Madhvanand Namadeo Kashid

Liquid-liquid biphasic reactions play an important role in the chemical and pharmaceutical Industries The liquid-liquid slug flow capillary microreactor offers considerable potential benefits over the conventional liquid-liquid contactors Though the hydrod ...

2010

Numbering-up and mass transfer studies of liquid–liquid two-phase microstructured reactors

Albert Renken, Lioubov Kiwi, Madhvanand Namadeo Kashid, Akash Gupta

Microstructured reactors are known to provide high heat and mass transfer rates for liquid–liquid twophase systems when used as a single channel. For industrial scale production, scale-up of microstructured reactors is essential to achieve throughput in th ...

Elsevier2010

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