A.R. Sánchez-Guitard, E. Ruiz-Reina
University of Málaga, Málaga, Spain
In this work, we study the design of a new integrated system for Solar Water Heating that combines the solar thermal energy collection (primary circuit) with the heat storage (secondary circuit) into the same device. We have performed different finite element method simulations using COMSOL Multiphysics®, for solving the equations of heat transfer (conduction and convection) and those of fluid ...
Determining Degradation in Solid Oxide Fuel Cells Electrode Materials Using COMSOL Multiphyics® Software - new
G. Cui, Z. Chen, F. Tariq, V. Yufit, N. Brandon
Imperial College London, London, UK
Solid Oxide Fuel Cells (SOFCs) are one of the most attractive technologies for meeting our future energy demands. They promise the efficient conversion of chemical to electrical energy and are a growing area of both academic and industrial interests. Typical electrode-supported SOFCs consist of three key components, two porous functional electrode layers (anode and cathode) and one dense ...
Análise da Aproximação para Baixa Absorção Óptica na Geração de Calor Via Laser em Sólidos Semitransparentes: Aplicação na Técnica de Lente Térmica - new
L. S. Herculano, G. V. B. Lukasievicz, O. A. Capeloto
Universidade Tecnológica Federal do Paraná, Santa Helena, PR, Brasil
Universidade Tecnológica Federal do Paraná, Toledo, PR, Brasil
Universidade Estadual de Maringá, Maringá, PR, Brasil
Neste trabalho utilizamos o software COMSOL Multiphysics® para resolver a equação de difusão de calor induzida por laser. Está equação é a base de técnicas fototérmicas em especial a técnica de Lente Térmica. Além de resolver a equação de difusão sem o uso das aproximações de amostra radialmente infinita e baixa absorção óptica, o COMSOL Multiphysics mostra-se como uma poderosa ferramenta no ...
Computational Multiphysics to Optimize Humidification Chamber for a Novel PEM Fuel Cell Power System Used in Automobile Application - new
Tata Motors, Bengaluru, Karnataka, India
Proton Exchange Membrane (PEM) fuel cells are quickly becoming an attractive technology due to their ability to meet increasing energy demands in a cleaner, more efficient way compared to existing methods. A fuel cell is an electrochemical device which converts the chemical energy of a fuel and an oxidant directly into electricity without the intermediate step of classical, chemical combustion ...
R. P. Ruby, G. Kulkarni, U. Kanade
Noumenon Multiphysics Pvt. Ltd., Pune, Maharashtra, India
Seals leak primarily at the interface between seal and cavity (Figure 1). At a microscopic level, the interface between the seal and cavity consists of regions of contact between the two elements, and voids. The voids are connected to each other, forming a microscopic system of caverns through which the leaking fluid flows (Figure 2). In two previous papers, we investigated the microgeometry of ...
V. Gnanaraj, V. Mohan, and B. Vellaikannan
Thiagarajar College of Engineering, Madurai, Tamilnadu, India
A fundamental understanding of the transport phenomena in microfluidic channels is critical for systematic design and precise control of such miniaturized devices towards the integration and automation of Lab-on- a-chip devices. Electroosmotic flow is widely used to transport and mix fluids in microfluidic systems. Electroosmotic transport in convergent divergent micronozzle is significant in ...
M. Cavenago, P. Antonini, P. Veltri, N. Pilan, V. Antoni, and G. Serianni
INFN-LNL, Legnaro, Padova, Italy
Consorzio RFX, Padova, Italy
Centro Ric. E. Fermi, Roma, Italy
A very simplified system for high voltage test is studied, considering reason for voltage holding failures which are not covered by conventional and local design criteria. A first understanding of the problem is obtained by solving the electrostatic potential in a 2D axis symmetric geometry, considering in detail the electrode shapes, and following a cascade of particle between opposite ...
B. Baumann, M. Wolff, J. Hirsch, P. Antonis, S. Bhosle, and R. Valdivia Barrientos
Hamburg University of Applied Sciences, Hamburg, Germany
Philips Lighting, Eindhoven, The Netherlands
LAPLACE, Université de Toulouse and CNRS, Toulouse, France
National Institute of Nuclear Research, Salazar, Ocoyoacac, Mexico
High intensity discharge lamps can experience flickering and even destruction, when operated at high frequency alternating current. The cause of these problems has been identified as acoustic resonances inside the lamp’s are tube. Here, a finite element approach for the calculation of the acoustic response function is described. The developed model does not include the plasma dynamics.
Department of Mechanical Engineering, University of Washington, Seattle, Washington, USA
Heat conduction through a slab, 0 ≤ x ≤ W is one dimensional. However, if one of the edges, say x=0, is rough the conduction will be two dimensional. The two dimensionality varies with the correlation length with a maximum at a length approximately 10% of the slab width. The maximum percentage standard deviation of the flux is of the order of 3 time that of the roughness. Monte ...
G. Coppola, and K. Liu
Lakehead University, Department of Mechanical Engineering, Richmond, Hill, Ontario, Canada
The objective of this paper is to study the effects of compliance mismatch in a stented artery. COMSOL Multiphysics is used to tackle this challenging problem involving fluid-structure interaction. The particular effects studied in this paper are the radial displacement of the artery wall, pressure distribution along the studied segment, the factors affecting stress in the fluid and artery ...