Here you will find presentations given at COMSOL Conferences around the globe. The presentations explore the innovative research and products designed by your peers using COMSOL Multiphysics. Research topics span a wide array of industries and application areas, including the electrical, mechanical, fluid, and chemical disciplines. Use the Quick Search to find presentations pertaining to your application area.

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 Evaporation Processes in Electron Beam Welding - new

E. Salomatova[1], D. Trushnikov[1], V. Belenkiy[1], V. Tsaplin[1]
[1]Perm National Research Polytechnic University, Perm, Russia

In this paper describes an original method for indirect measurement of the vapor pressure and temperature in the keyhole in electron beam welding. This method is based on the determination of the concentration of chemical elements in the vapor above the welding zone. Taking into account these data model is built 2D diffusion processes with heat and mass transfer elements in the melt, which ...

Computational Optimization of Battery Grid for Efficiency and Performance Improvement

V. Panneerselvam [1], R. C. Thiagarajan [1]
[1] ATOA Scientific Technologies Pvt Ltd, Bengaluru, India

Battery grids are critical system used in automobile, renewable energy, medical devices and mobile phones. Research efforts are directed to increase energy density, longevity and reduce the cost. This paper is related to computational optimisation of lead acid battery for efficiency and performance improvement. Battery grid is the precursor for the active material and current distribution in ...

Validation of Supercritical Fluid Extraction Model with COMSOL Multiphysics® Software

V. Devi [1], R. Bhargava [1], S. Khanam [1],
[1] Indian Institute of Technology Roorkee, Uttarakhand, India.

This paper shows the solution of mathematical model of supercritical fluid extraction process, given by Sovova H., 1994, through COMSOL Multiphysics® software. Sovova et al., 1994 used this model for the supercritical CO2 extraction of grape seed. Extraction was performed with different specific flow rates and grade of grinding. Further Mira et al., 1996 and Mira et al., 1999 validated the same ...

Molecular Hydrogen Tracking in an Electrolytic Polishing Process

L. M. A. Ferreira [1],
[1] CERN, Geneva, Switzerland

In a water based electrolytic polishing process, the formation of molecular hydrogen at the cathode is unavoidable and it can contribute to the formation of surface defects at the anode side. This paper presents the work to model and simulate the molecular hydrogen flow inside radio frequency cavity geometries and compares it with the presence, type and relative position of certain defects in ...

Coupling Miscible Flow and Geochemistry for Carbon Dioxide Flooding into North Sea Chalk Reservoir

B. Niu[1], W. Yan[1], A.A. Shapiro[1], and E.H. Stenby[1]

[1]Department of Chemical and Biochemical Engineering, Technical University of Denmark, Kgs. Lyngby, Denmark

As an effective method to cope with green-house gas emission, and to enhance oil recovery, injection of carbon dioxide into oil reservoirs has obtained increasing attentions. The flooding process involves complex phase behavior among oil, brine and CO2, and geochemical reaction between CO2 and rock. COMSOL Multiphysics® was first applied to simulating two flooding processes with known ...

FEM Analysis of Flamelet Wrinkling in a Diffusion Flame - new

Y. Li[1], T.C. Lieuwen[2], J. Zhou[1], H. Cao[1]
[1]Zhengzhou University, Zhengzhou City, Henan Province, China
[2]Georgia Institute of Technology, Atlanta, GA

One can hardly get the exact analytic solution of a full time-dependent convection-diffusion equation, for describing the dynamics of a non-premixed flamelet. The analytic solution of the linearized form with such a model was studied by MATLAB®. And also, a numerical computation was made with the linearization model in COMSOL Multiphysics® software, to provide a perfect accordance with the ...

Modeling of Biocalcification in Non-Saturated Conditions

B. Courcelles [1], C. Raymond-Poirier [1],
[1] École Polytechnique de Montréal, Montréal, QC, Canada

In the context of increasing demographic pressures around the world, soil improvement techniques constitute viable alternatives to expensive foundations. Among these techniques, the biocalcification of granular soils appears as a promising alternative relying on the formation of calcium carbonates. The process is relatively basic and energy efficient, as based on the metabolic activity of the ...

Simulation of a Supercritical Fluid Extraction Process Using COMSOL Multiphysics® Software

B. Suryawansi [1], B. Mohanty [1],
[1] Indian Institute of Technology Roorkee, Uttarakhand, India.

In the present work, COMSOL Multiphysics® software was used to solve a mass transfer based mathematical model (Stastova et al., 1996) which is a modified form of Sovova H.,1994 model. The modification has been brought about by introducing the term ‘Grinding efficiency’ in the model and the results of the this model has been compared with the theoretical results obtained by Duba and Fiori, 2015 ...

Simulation of Methane Adsorption in ANG Storage System

P.K. Sahoo[1], K.G. Ayappa[1], M. John[2], B.L. Newalkar[2], and N.V. Choudary[2]
[1]Department of Chemical Engineering, Indian Institute of Science, Bangalore, Karnataka
[2]Corporate R&D Centre, Bharat Petroleum Corporation Ltd. Greater Noida, India

Recently adsorptive storage has been identified as the most promising low-pressure (3.5 - 4.0 MPa) alternative for storing natural gas for vehicular use. However in order to successfully implement this technology, the filling and discharge characteristics of the adsorbent bed must be well understood. Significant temperature changes that occur during adsorption and desorption retard the system ...