M. Ek, and D. Sichen
Materials Science and Engineering, Royal Institute of Technology, Stockholm, Sweden
In the steelmaking processes, the stirring of the metal bath by argon (or nitrogen) injection is a widely used method to achieve chemical or thermal homogeneity. Computational fluid dynamics can be used as a very powerful tool to gain an insight into the mass transfer and heat transfer in liquid steel. In this paper, the flow behaviors in two different steelmaking reactors were simulated using ...
A. Pezzin, M. Giansetti, A. Ferri
Politecnico di Torino, Torino, Italy
Electric resistances are widely used as heating elements in domestic and industrial equipment; since process water contains calcium carbonate and calcium bicarbonate, limescale plays an important role on global efficiency of water-heating systems. Calcium carbonate has a very low thermal conductivity (2.2 W/(m*K)) and the carbonate deposit on the heating element causes a decrease of the overall ...
Numerical Optimization of Heating for High-Speed Rotating Cup by Means of Multiphysics Modeling and its Experimental Verification - new
K. Kyrgyzbaev, M. Willert-Porada, M. Terock
University of Bayreuth, Chair of Materials Processing, Bayreuth, Germany
The physics of rotating cups and disks is an important research subject in many areas of engineering. The rotating cup/disk has been employed in many industrial applications such as spin-coating of phosphor on television screens or photoresist films on silicon wafer, concentrating solutions by evaporation, centrifugal atomization of metal melts, and glass flakes production. In this work the ...
M. Miliani, F. Piccagli, C. Silvestro
Medtronic Invatec S.p.A., Roncadelle, Italy
Introduction: Chronic arterial hypertension (HTN) is a pathological condition characterized by prolonged high level of arterial blood pressure causing major damages to several human body apparata. Renal sympathetic denervation (RDN) has been found to effectively reduce systemic blood pressure. Metallic electrodes can be placed on an endovascular device connected to external radio frequency (RF) ...
G. Maizza and A. Tassinari
Dipartimento di Scienza dei Materiali ed Ingegneria Chimica, Politecnico di Torino, Torino, Italy
Capacitor Discharge Sintering (CDS) is an ultrafast Electric Current Assisted Sintering method (u-ECAS) suited for electrically conductive powders. It is characterized by relatively short processing times (milliseconds range) and much lower sintering temperatures than the melting point of the powders. However, the CDS basic phenomena are not fully understood yet neither at the macroscale nor at ...
K.Govardhan, K.Narmada, Nirmala Grace
VIT University, MEMS & Sensors Division, School of Electronics Engineering, Vellore, Tamil Nadu, India
VIT University, Sensor System Technology, School of Electronics Engineering, Vellore, Tamil Nadu, India
VIT University, Center for Nanotechnology Research, Vellore, Tamil Nadu, India
This study aims at the design and optimization of a Gas Sensing Chamber. The design takes advantage of the multiphysics simulation capabilities of COMSOL Multiphysics® to incorporate various physics such as CFD, Micro fluidics, Solid Mechanics, Electro thermal effects etc. The optimization needs to be done at multiple levels such as mixture of two gases, arriving laminar flow over the substrate, ...
T. H. Hanley, H. T. D. Grigg, B. J. Gallacher
Newcastle University, Newcastle-Upon-Tyne, UK
Introducing a disorder into a finite periodic oscillatory system induces the presence of a 'trapped mode': a mode in which the displacement field is localised to the region of the disorder. A main inhibitor to MEMS resonators achieving a high quality (Q) factor is energy radiation through the support to the substrate. The trapped modes present a way to tune this to a minimal value. An initial ...
Technical Specialist, e2v technologies, England
Outline of presentation: We have seen a few of the diverse ways e2v has started to use COMSOL It is allowing us to view our processes in a different way Resulting in improvements It is enabling our engineers and scientists to examine the full application, not just the microwave or RF tube Resulting in: Complete product solution -with much added value Expected considerable growth in ...
L. Braci, S. Ognier, and S. Cavadias
Laboratoire de Génie des Procédés Plasmas et Traitements de Surfaces, Ecole Nationale Supérieure de Chimie de Paris, University Pierre et Marie Curie, Paris, France
Non-thermal plasma, generated in atmospheric pressure discharges, has been investigated in our laboratory in order to treat highly diluted (300 ppm to 1000 ppm) volatile pollutant. The collision of electrons created in the discharge with atmospheric air, leads to the formation of reactive species that can totally or partially oxidize the pollutants at near ambient temperature. The purpose of the ...
Professor of Electrical and Computer Engineering, Chemistry and Bioengineering,
Rice University, Houston, TX, USA
Dr. Naomi Halas is currently Professor of Electrical and Computer Engineering, Chemistry, and Bioengineering at Rice University. She is the inventor of nanoshells, nanoparticles with optical resonances spanning the visible and infrared regions of the spectrum. She is co-founder of a company developing nanoshell-based cancer therapy. She is author of more than 150 refereed publications, more than ...