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Hier finden Sie Veröffentlichungen und Präsentationen der weltweit stattfindenden COMSOL-Konferenzen. In diesen präsentieren Ihre Fachkollegen ihre neuesten mit COMSOL Multiphysics entwickelten Produkte und Ideen. Die Forschungsthemen umfassen ein weites Feld von Industrien und Anwendungsbereichen, die von Mechanik und Elektronik über Strömungen bis zur Chemie reichen. Nutzen Sie die Quick Search, um die zu Ihrem Forschungsbereich passenden Präsentationen zu finden.

Extraction of Phenolic Compound from Grape Fruit. A Comparison Between a 3D FEM Model and Experimental Results

E. Madieta, I. Zouid, R. Siret, and F. Jourjon
Laboratoire GRAPPE, ESA, Angers, France

Fresh fruits and vegetables are gaining importance in the human diet because they contain many beneficial compounds. Among these compounds, phenols are of vital importance due to their antioxidant properties. It is well evident from previous researches that the skin of red grapes is considered a good source of phenols. The aim of this work is to simulate the extraction procedure of phenols in ...

The initial simulation on characteristic of lithium ion cells using COMSOL soft

X. Liu, S. Wang, and L. Lu
Tianjin Institute of Power Source, Beijing, China

Tianjin Institute of Power Source (TIPS) is the first, the largest and most complete electrical energy technology research institute of China. We use COMSOL Multiphysics to simulate the lithium-ion batteries. It contains: Simulation on charge-discharge behavior of lithium ion cells; Simulation on thermal and safety of lithium ion cells; Design for lithium ion cells – collector, stress; From ...

Theoretical Investigation of CMH Lamps Ignition Properties in Ar/Hg Penning Gas Mixtures

Sz. Beleznai[1], I. Maros[2]
[1]Budapest University of Technology and Economics, Budapest, Hungary
[2]General Electric Lighting, GE Hungary KFT, Budapest, Hungary

Two-dimensional plasma transport model was developed in COMSOL Multiphysics Plasma Module to investigate fundamental issues in ceramic metal halide (CMH) lamps starting using Ar/Hg penning gas mixture. The intent of this work is to provide insight into possible design rules that might be applied to the improvement of start-up in moderate pressure metal halide lamps. The model gives a complete ...

Theoretical Simulations of Silicon-On-Nothing (SON) Structures

C. Grau Turuelo[1], B. Bergmann[1], C. Breitkopf[1], F. Hoffmann[2], L. Brencher[2]
[1]Technische Universität Dresden, Dresden, Saxony, Germany
[2]Infineon Technologies GmbH, Dresden, Dresden, Saxony, Germany

A novel technique for semiconductor manufacturing is introduced: Silicon-On-Nothing. This process consists of an initial cylindrical trench which has a shape evolution under certain conditions: high temperature (1100 °C), low pressure (10 Torr) and a non-oxidizing atmosphere such as hydrogen. These conditions enable a, mainly, surface diffusion phenomenon whose final result is an empty space ...

Flow of Dry Foam in a Pipe

M. Divakaran[1], S. K. Gupta[1]
[1]Department of Chemical Engineering, Indian Institute of Science, Bangalore, Karnataka, India

Due to the coupling of foam flow with foam generation step, the earlier studies on foam flow have not led to consistent results. An increase in flow rate to obtain ?P vs. Q data changes the foam under investigation itself. The controlled experiments carried out earlier in our group show that ?P increases with flow rate as Q^2/3, a weaker dependence than that known for laminar flow or plug flow ...

Modeling Maillard Reaction and Thermal Transformations During Bread Baking

D. Papasidero[1], F. Manenti[1]
[1]Politecnico di Milano, Dipartimento di Chimica, Materiali e Ingegneria Chimica “Giulio Natta”, Milano, Italy

One big challenge for the food industry is to predict and optimize flavors. The Maillard reaction occurs in food matrices containing carbohydrates and proteins under specific operating conditions. The presented research couples thermal and kinetic modeling to the bread baking process, an ideal field to study this complex set of reactions responsible for many bread flavors. The thermal model ...

Numerical Simulation of Carbon Steel Corrosion Exposed to Flowing NaCl Solutions Through an Annular Duct - new

A. Soliz[1], K. Mayrhofer[1], L. Caceres[2]
[1]Department of Interface Chemistry & Surface Engineering, Max-Planck-Institut für Eisenforschung, Düsseldorf, Germany
[2]Department of Chemical Engineering, University of Antofagasta, Antofagasta, Chile

A three-dimensional mathematical model under stationary conditions have been established to understand the corrosion of carbon steel cylindrical samples immersed in flowing NaCl solution through an annular duct. The migration, diffusion and convection mass transfer mechanisms were solved using the Nernst–Planck equation coupled to the Navier-Stokes equation. A corrosion model based on the mixed ...

Performance of a Miniaturized Hydrocyclone for the Isolation of Schistosoma Mansoni Eggs - new

C. Soares[1], N. Padoin[1], F. Montalvo[2], D. Cobra[2]
[1]Federal University of Santa Catarina, Florianópolis, SC, Brazil
[2]CERTI Foundation, Florianópolis, SC, Brazil

Schistosoma mansoni parasites affect million people worldwide. The intensity of the infection can be evaluated by the number of eggs present in the stool of an infected individual. The application of the traditional methods has been regarded as impractical in developing areas and there is a continuous search for new techniques. In face of this scenario, a new method of diagnosis was explored in ...

Computational Study on Transition of Oil-Water Flow Morphology due to Sudden Contraction in Microfluidic Channel - new

J. Chaudhuri[1], S. Timung[1], T. K. Mandal[1], D. Bandyopadhyay[1]
[1]Indian Institute of Technology Guwahati, Guwahati, Assam, India

The flow morphology of two immiscible fluids in a microfluidic device finds numerous applications such as emulsification, synthesis of nanomaterials [1], lab-on-a-chip devices and biological analysis [2]. It offers many advantages over the conventional macroscopic devices because of its availability for higher surface to volume ratio, ability to handle small volume of fluids, easier process ...

FEMLAB/MATLAB model for complex electric swing adsorption (ESA) system with in-vessel condensation

Petkovska, M.1, Antov-Bozalo, D.1, Markovic A.1, Sullivan, P.2
1 Faculty of Technology and Metallurgy, University of Belgrade Karnegijeva 4, Belgrade, Serbia and Montenegro

The subject of this investigation is a recently developed Electric Swing Adsorption (ESA) system (adsorption cycle with electrothermal desorption step, which is performed by direct heating of the adsorbent particles by passing electric current through them), with an adsorber assembled of two annular, radial-flow, cartridge-type fixed-beds, with in-vessel condensation. Three FEMLAB models were ...

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