3D Stationary and Temporal Electro-Thermal Simulations of Metal Oxide Gas Sensor Based on a High Temperature and Low Power Consumption Micro-Heater Structure
N. Dufour, C. Wartelle, P. Menini
LAAS-CNRS, Toulouse, France
Renault, Guyancourt, France
The aim of this work was to simulate the electro-thermal behavior of a micro-hotplate used as a gas sensor, in order to compare the obtained results with a real structure. The structure has been designed in 3D and a stationary and a temporal study has been realized.
J. van Schijndel
Eindhoven University of Technology, Eindhoven, The Netherlands
In order to predict, improve and meet a certain set of performance requirements related to the indoor climate of buildings and the associated energy demand, building energy simulation (BES) tools are indispensable. Due to the rapid development of FEM software and the Multiphysics approaches, it should possible to build and simulate full 3D models of buildings regarding the energy demand. The ...
P. Silva, J.A. Ferreira, P. de Oliveira
Coimbra Institute of Engineering, CMUC, Coimbra, Portugal
Department of Mathematics University of Coimbra, CMUC, Coimbra, Portugal
The aim of the poster is to present a coupled 2D mathematical model to predict the evolution of drug concentration - in the cornea and in the anterior chamber of the eye - when therapeutic lenses are used (Figure 1). The mathematical model takes into account (i) diffusion processes in several compartments of the eye (therapeutic lens, cornea and anterior chamber); (ii) metabolic consuming ...
N. Khoshenvis Gargar, A. Mailybaev, D. Marchesin, H. Bruining
Delft University of Technology, Delft, The Netherlands
Instituto Nacional de Matematica Pura e Aplicada, Rio de Janeiro, Brazil
One of the methods to recover oil from medium and low viscosity in complex reservoirs uses air injection leading to oil combustion. In this case the oxygen in the air burns the heavier components of the oil, generating a heat wave leading to vaporization of lighter components. In this work, we consider a simple model for air injection in light oil reservoir containing only one component in dry ...
C. Tonry, M. K. Patel, C. Bailey, M. P.Y. Desmuliez, W. Yu
Computational Mechanics and Reliability Group (CMRG), School of Computing and Mathematical Sciences, University of Greenwich, London, United Kingdom
Microsystems Engineering Centre (MISCEC, School of Engineering & Physical Sciences, Heriot Watt University, Earl Mountbatten Building, Edinburgh, United Kingdom
State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin, China
Electric Field Assisted Capillarity (EFAC) is a novel technique for the fabrication of hollow polymer microstructures. It has advantages over current methods as it is a single step process. Hollow microstructures have many uses in industry from microchannels and microcapsules in BioMEMS to fibre-optical waveguides. It makes use of the dielectric properties of polymers combined with a heavily ...
J. Jimenez-Lozano, P. Vacas-Jacques, W. Franco
Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
Radiofrequency (RF) technology offers unique advantages for noninvasive selective heating of relatively large volumes of tissue. In this work, we present a mathematical model for selective non-invasive, non-ablative RF heating of cutaneous and subcutaneous tissue (with detailed fiber septa structures) including their thermo-elastic response. Our analysis shows that the fiber septa architecture ...
Modeling the Effect of Discrete Distributions of Platinum Particles in the PEM Fuel Cell Catalyst Layer
C.F. Cetinbas, A.K. Prasad, S.G. Advani
Center for Fuel Cell Research, Department of Mechanical Engineering, University of Delaware, Newark, DE, USA
University of Delaware, Newark, DE, USA
In this study, the basic catalyst layer (CL) structure, consisting of carbon-supported Pt particles (C|Pt) and an ionomer binder, is investigated numerically by using COMSOL. The significance of modeling discrete Pt particles on the carbon support is highlighted by comparing the cell performance results to the case in which the Pt is assumed to be distributed uniformly over the carbon support as ...
P. Rálek, M. Hokr
Technical University in Liberec, Liberec, Czech Republic
Presented work is motivated by pre-realization phase of rock heating experiment in underground, testing properties for cyclic energy storage. Heating unit, installed in large borehole from end of a tunnel, is fixed to the rock face with the geo-polymer. Rest of the borehole is filled with isolation material. We used the Heat Transfer Module and the Structural Mechanics Module in COMSOL for ...
M. N. Nandanwar, S. K. Gupta
Indian Institute of Science, Bangalore, India
Failure of conventional lead-acid battery is attributed to degradation of solid active mass (PbO2 and PbSO4 ). A number of research efforts are underway worldwide to overcome degradation of active mass to improve the cycle life of lead-acid batteries. Soluble lead-acid flow battery (SLFB) is a new kind of lead-acid flow battery in which products of discharge remain in dissolved state. SLFB ...
J. Yoo, H. Soh, J. Choi, S. Song
Department of Mechanical Engineering, Yonsei University, Korea
Hyundai Motor Co., Korea
Samsung Electronics Co., Ltd., Korea
Mando Co., Korea
Nanoscale structural analysis and design is presented. All the simulations are carried out using a finite element solver and optimization is performed using parameter and topology optimization schemes. It is concluded that COMSOL is effective for analysis and design of nanoscale structure design in electromagnetic field and it may be combined with several optimization methods to improve system ...