Ici vous trouverez les présentations issues des Conférences COMSOL à travers le monde. Réalisées par des utilisateurs de COMSOL Multiphysics, ces présentations explorent tous les domaines actuels d'innovation. Les applications couvrent pratiquement tous les secteurs industriels et impliquent des phénomènes électriques, mécaniques, fluidiques et chimiques. Utilisez la recherche rapide pour trouver les présentations les plus intéressantes dans votre domaine d'intérêt.

Consultez les proceedings de la Conference COMSOL 2020

Chemical Reaction Engineeringx

Simulation of Auxin Accumulation and Transport in a Plant Root

M. A. Akhmanova [1], M. Fendrych [1], J. Friml [1]
[1] Institute of Science and Technology Austria, Klosterneuburg, Austria

Plant roots have an outstanding ability to grow in the direction of gravity or nutrients. Bending of the root tip in the preferred direction is achieved by asymmetric cell growth on the opposite sides of the root, dictated by asymmetrical distribution of the hormone auxin. Increase in ... En savoir plus

Oxygen Based Diffusion Modeling of Oxidation Behaviour of Encapsulated Lipids

H. Teichmann [1], A. Linke [1], R. Kohlus [1],
[1] Process Engineering and Food Powders, University of Hohenheim, Stuttgart, BW, Germany

Encapsulation is an established technique to protect sensitive materials from environmental factors such as oxygen and light. Nutritionally beneficial fatty acids like omega 3 fatty acids are susceptible to oxidation and are therefore encapsulated by drying an oil in water emulsion. It ... En savoir plus

CFD Investigation of a Photocatalytic Multi-Tube Reactor for Indoor Air Purification

J. van Walsem [1], J. Roegiers [1], S. Lenaerts [1], S. Denys [1],
[1] Department of Bioscience Engineering, University of Antwerp, Antwerp, Belgium

In industrial countries, people spend most of their time indoors. Stringent heat-insulation measures in combination with deficient ventilation have a negative impact on indoor air quality [1]. Integration or retrofitting of a photocatalytic oxidation or PCO reactor into continuous flow ... En savoir plus

A Multi-physical Approach of a Sterilization System for Aseptic Food Processing

Z. B. Jildeh [1], P. Kirchner [2], T. Rydlewski [2], C. Hollenbeck [2], T. Wagner [3], P. H. Wagner [4], M. J. Schöning [3],
[1] Imagine Engineering GmbH, Bergheim, Germany; Institute of Nano- and Biotechnologies (INB), FH Aachen, Jülich, Germany; Soft Matter and Biophysics, Catholic University, Leuven, Belgium
[2] Imagine Engineering GmbH, Bergheim, Germany
[3] Institute of Nano- and Biotechnologies (INB), FH Aachen, Jülich, Germany
[4] Soft Matter and Biophysics, Catholic University, Leuven, Belgium

Sterilization is the process of deactivating microorganisms from a surface or a product. A high temperature gaseous mixture of hydrogen peroxide and steam became the accepted standard in most aseptic filling machines found in pharmaceutical, food and beverage industries [1, 2]. To ... En savoir plus

Hydrothemal Carbonization: A Renewable Alternative to Fossil Fuels and Respective Evaluation

P. Kladisios [1], A. Stegou [1], Z. Sagia [1],
[1] National Technical University of Athens, Athens, Greece.

Humanity is faced with an imminent energy crisis. The exponential growth of the human population and the consequential increase of the required energy on a global scale, the dramatic climate change and the exhaustibility of natural resources combined, force us to strive towards a ... En savoir plus

Modeling and Simulation of Hydrogen Generation in Membrane Reactor via Steam Octane Reforming

N. Ghasem [1], A. Y. Alraeesi [1],
[1] UAE Univeristy, Alain, United Arab Emirates

Various hydrocarbon compounds have been converted into pure hydrogen by using a catalyst and a palladium membrane in one reactor (PMR) in a one-step process where the reaction proceeds to almost complete conversion. Octane is converted into pure hydrogen using of a palladium membrane ... En savoir plus

A Flow and Transport Model for Low-Temperature Gaseous Nitrocarburizing of Stainless Steels

J. Feng [1], M. Wettlaufer [1],
[1] Centre of Materials Engineering, Heilbronn University, Heilbronn, Germany

An integrated numeric, thermodynamic, and experimental analysis work was conducted to find out the proper flow and transport parameters of combined chemical species for low-temperature gaseous nitrocarburizing of stainless steels in an industrial furnace built for thermochemical ... En savoir plus

Reactive Transport Modeling of CO2 in Carbonate Rocks: Single Pore Model

P. Agrawal [1], J. Koskamp [1], A. Raoof [1], M. Wolthers [1],
[1] Utrecht University, Utrecht, The Netherlands

Dissolution of calcite plays an important role in various processes such as enhanced oil and gas recovery, CO2 sequestration, and groundwater transport for the drinking water production. Dissolution rates predicted by pore scale and continuum scale models are often faster than the ... En savoir plus

Model Based Stimulus Experiments to Improve Biological Wastewater Treatment Performance

N. Do [1], M. Stich [1],
[1] Non-linearity and Complexity Research Group, System Analytics Research Institute, School of Engineering and Applied Science, Aston University, Birmingham, United Kingdom

The municipal wastewater treatment in a sustainable context requires a smart technology in which an optimal combination of the ecological status and energy demand can be achieved. The integration of electron conductive materials into a traditionally constructed wetland (CW) has been ... En savoir plus

Predictive Model for UV Light Irradiation and PCO Reaction Kinetics in a Photocatalytic Reactor

S. Denys [1], J. Roegiers [1], J. van Walsem [1],
[1] University of Antwerp, Antwerp, Belgium

A novel type of photocatalytic reactor, i.e. parallel flow tube reactor (PFTR) is presented for the degradation of indoor air pollution with UV-light. A Multiphysics model was developed in COMSOL Multiphysics® to predict the steady-state behavior under different inlet concentrations and ... En savoir plus