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In questa sezione troverete i lavori presentati alle Conferenze mondiali COMSOL. Le presentazioni descrivono ricerche e prodotti innovativi progettati con COMSOL Multiphysics da colleghi di tutto il mondo. I temi delle ricerche presentate abbracciano un'ampia gamma di settori produttivi e aree applicative, in ambito elettrico, meccanico, fluidodinamico e chimico. Lo strumento di Ricerca Rapida vi permetterà di trovare le presentazioni che si riferiscono all'area di vostro interesse.

Visualizza gli articoli presentati alla COMSOL Conference 2020

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Heat Transfer and Phase Changex

Large and High Power Cylindrical Batteries - Analysis of the Battery Pack Temperature Distributions Using the COMSOL Multiphysics® and MATLAB® Simulation Softwares

O. Capron[1], A. Samba[1], N. Omar[1], H. Gualous[2], P. Van den Bossche[1], J. Van Mierlo[1]
[1]MOBI - Mobility, Logistics and Automotive Technology Research Centre, VUB - Vrije Universiteit Brussel, Brussels, Belgium
[2]Laboratoire LUSAC, Université de Caen Basse Normandie, Cherbourg-Octeville, France

The temperature distributions inside two packs (in-line and staggered) made of large cylindrical lithium iron phosphate cells (of 18 Ah nominal capacity) are analysed in this paper during a 90 A constant discharge current. The analysis of the battery packs temperature distributions is ... Per saperne di più

Mathematical Model of Vacuum Foam Drying

M. Sramek[1], J. Weiss[2], R. Kohlus[1]
[1]Department of Food Processing Engineering, Institute of Food Science and Biotechnology, Hohenheim University, Stuttgart, Germany
[2]Department of Meat Science and Food Physics, Institute of Food Science and Biotechnology, Hohenheim University, Stuttgart, Germany

The mathematical model is closely related to the development of a novel drying method for high viscous and sticky materials. The foamed state facilitates diffusive moisture transport and therefore accelerating the drying process. Moreover the dried porous material can be easily converted ... Per saperne di più

Numerical Analysis of the Self-Heating Behaviour of Coal Dust Accumulations

D.Wu[1], E. Van den Bulck[1]
[1]Katholieke Universiteit Leuven, Department of Mechanical Engineering, KU Leuven, Belgium

Introduction Self-heating behaviour of dust accumulations is a multiphysics field coupled heat and mass transfer in the porous media. A typical experimental apparatus with a hot storage oven and mesh wire baskets has been taken as the study object. The influence of gas flow velocity, ... Per saperne di più

Simulation and Experimental Validation of the Core Temperature Distribution of a Three-Phase Transformer

R. Barroso[1]
[1]Universidade Federal do Ceará, Fortaleza, Ceará, Brazil

This paper presents an application of COMSOL Multiphysics® software in the study of the temperature distribution of a 5kVA three-phase air-cooled transformer. A 3D, steady state model was utilized on the simulations. The interface with the surrounding air was modeled by Newton's Law of ... Per saperne di più

Simulação Fluidodinâmica de um Digestor Contínuo

R. Kreczkiuski[1], I. Neitzel[1]
[1]Faculdade de Telêmaco Borba - FATEB, Telêmaco Borba, Paraná, Brasil

No processo Kraft a madeira é reduzida a uma massa fibrosa. Neste processo são rompidas as ligações entre as estruturas da madeira separando as fibras. Esta operação, denominada de polpação, é realizada em um equipamento denominado de digestor. Este trabalho analisa o comportamento ... Per saperne di più

Heat Transfer in Adsorption Heat Exchangers between Pellets and Fins

E. Laurenz[1], G. Füldner[1], L. Schnabel[1]
[1]Fraunhofer Institute for Solar Energy Systems (ISE), Freiburg, Germany

Adsorption heat exchangers (AdHXs) are important components in adsorption heat pumps and chillers, a primary energy efficient source of heating and cooling. Due to availability and established inexpensive manufacturing fin-and-tube type heat exchangers with beds of adsorption pellets in ... Per saperne di più

Passive Indirect Evaporative Cooler

F. F. Dall'Agnol[1], A. Pavani[1]
[1]Center for Information Technology Renato Archer, Campinas, SP, Brazil

Evaporative coolers are viable alternative to air conditioners because of their low power consumption. However, in tropical humid environments the increased humidity that accompanies the cool air in the evaporative coolers causes an uncomfortable wet feeling, since it hinders the ... Per saperne di più

Increasing Heat Transfer in Microchannels with Surface Acoustic Waves

S. Berry[1]
[1]Massachusetts Institute of Technology: Lincoln Laboratory, Lexington, MA, USA

In this numerical study, surface acoustic waves (SAWs) are evaluated as a potential disruptive flow technology for enhancing heat transfer in microchannels. Using COMSOL Multiphysics® software, the physics governing acoustics, single-phase-fluid flow and heat transfer are coupled. The ... Per saperne di più

Study of Supercritical Coal Fired Power Plant Dynamic Responses for Grid Code Compliance

A. Gil-Garcia[1], I. Kings[1], B. Al-Duri[1]
[1]University of Birmingham, School of Chemical Engineering, Edgbaston, Birmingham, UK

In clean coal technologies, improving energy conversion efficiency is one of the most important directions. Compared to traditional subcritical power plants, pressure-increased supercritical power plants improve the plant energy efficiency from 35% up to 45%. This work presents a study ... Per saperne di più

Temperature Gradients Controlled Broadband Acoustic Omnidirectional Absorber

F. Qian[1], L. Quan[1], X. Liu[1]
[1]Institute of Acoustics and School of Physics, Nanjing University, Nanjing, China

Previous research into acoustic omnidirectional absorber (AOA) has shown the feasibility of forming acoustic black hole to guide the incident wave into the central absorptive cavity. However, major restrictions to practical applications exist due to complexity of designing metamaterials ... Per saperne di più

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