Virtual Prototype Evolution by COMSOL Multiphysics® of a Continuous Flow Animal By-Products ABP Ohmic Sterilization Unit - new
C-Tech Innovation Ltd., Capenhurst, Cheshire, UK
Ohmic heating (Joule heating) is a volumetric heating technology which can effectively process almost any pumpable fluid with extremely high energy efficiency (>95%). This is particularly useful for very thick fluids, those that burn on to hot surfaces and those with high solids content which would cause difficulties for conventional heating techniques. Processing of animal by-products (ABP) ...
Th. B. J. Campmans,
LBPSIGHT, Nieuwegein, The Netherlands
A installation caused severe hum, with 30 Hz as dominant frequency, causing serious annoyance. The acoustic study showed resonances around 30 Hz. Poor flow conditions existed at the inlet and outlet of the forced draft fan. Flow patterns were studied using CFD. Both the inlet and outlet contained large vortices, causing the strong hum. Changes in the design were studied. The finally changes ...
N. Semmar, M. Fournier, P. S. Alleaume , A. Seigneurin , , ,
GREMI-UMR7344, CNRS/University of Orléans, Orléans, France
Collegium Sciences et Techniques, Orléans, France
ST Microelectronics Tours SAS, Tours, France
Usually, in integrated circuits, the chip is brazed on leadframe and then, a polymer resin is molded around to create the packaging. On the first hand, the molding process at high temperatures will induce thermomechanical stress on the chip. As the leadframe, the chip and the braze have all different thermoelastic properties, these stress can be critical for the chip connections. To ...
M. Csete, A. Szalai, E. Csapó, A. Somogyi, I. Dékány
Department of Optics and Quantum Electronics, University of Szeged, Szeged, Hungary
MTA-SZTE Supramolecular and Nanostructured Materials Research Group, University of Szeged, Szeged, Hungary
Novel class of artificial optical antennas are of great interest in biosensing applications of nanoplasmonics due to their unique and tunable spectral properties. Silver colloid spheres covered with L-cysteine were studied experimentally by spectroscopy and TEM and numerically by a COMSOL Multiphysics® simulation. Experimental studies revealed that the Ag NP-Cys core-shell conjugates prefer to ...
O. Silva, M. Pekala, D. Garcia, J. Molinero, A. Nardi, M. Grive, B. Cochepin
Amphos 21 Consulting, Barcelona, Spain
Agence Nationale pour la Gestion des Dechéts Radioactifs, Châtenay-Malabry Cedex, France
The French National Waste Management Agency (Andra) envisages the safe disposal of High-Level Waste Intermediate-Level Long-Lived Waste through deep geological storage (multibarrier). Waste storage is based on the Callovo-Oxfordian formation (CallOx). It has been updated a reactive transport model accounting for the chemical and thermal evolution of a HLW cell. Improvements are a better ...
C. Grau Turuelo, C. Breitkopf
Technische Universität Dresden, Dresden, Germany
The void shape evolution of silicon is a process driven mainly by surface diffusion which leads to a geometrical transformation of trenches etched in silicon wafers due to surface energy minimization. The temperature, the ambient gas and the annealing time affect the velocity of the process. The use of custom PDEs in COMSOL Multiphysics® software and the Level-Set method provide a good base ...
J. H. Johnson
University of Bristol School of Earth Sciences, Bristol, UK
The use of high-resolution topography in the finite element model demonstrates that deformation from a shallow pressure source can be dramatically affected by overlying relief, not only in magnitude, but also in azimuth. This result is significant as it allows traditionally anomalous data to be evenly weighted during inversions for magma reservoir parameters. The result that surface ...
A. Pezzin, A. Ferri
Politecnico di Torino, Torino, Italy
Air permeability is one of the most important parameters in the study of thermo-physiological comfort of fabrics. The main goal of this work is to develop a virtual process that allows the prediction of air permeability of any fabric without realizing a sample. The Free and Porous Media Flow physics interface was used in COMSOL Multiphysics® software; this allows to use Navier-Stokes equation ...
Inverse Method for Calculating the Temperature-Dependent Thermal Conductivity of Nuclear Materials - new
T. Pavlov[1,2], P. Van Uffelen, L. Vlahovic, D. Staicu, M. Wenman, R. W. Grimes, ,
Institute for Transuranium Elements, Eggenstein-Leopoldshafen, Germany
Department of Materials, Imperial College London, London, UK
The high temperature measurement of thermal conductivity is vital for predicting nuclear fuel performance both during reactor operation and accident conditions. The proposed method uses experimental thermograms obtained via high temperature laser-flash heating of a disc-shaped sample in combination with finite element analysis and parameter optimization to calculate the thermal conductivity ...
M. Giansetti, A. Pezzin, S. Sicardi, G. Rovero
Politecnico di Torino, Torino, Italy
The Life+ GreenWoolF project is aimed at demonstrating that green hydrolysis with superheated water is an effective way to convert wool wastes into organic nitrogen fertilizers. The core of the process is represented by the reaction tank (Figure 1) in which the hydrolyses reaction takes place. The temperature of the material during the reaction is one of the most influencing parameter and has to ...