In this paper, a 3D dynamic simulation for a portion of a metal hydride-based (LaNi5) hydrogen storage tank is presented. The model is based on heat and mass balances and considers coupled heat and mass transfer resistance through a... COMSOL Conference 2008, Hannover A. Freni, and F. Cipiti CNR- Institute for Advanced Energy Technologies “Nicola Giordano”, Messina, Italy
Reactive extraction of organic acids from an aqueous solution to an alkaline stripping fluid is based on a selective barrier allowing permeation of non-polar molecules, which subsequently react with the stripping agent. The shift from the... COMSOL Conference 2009, Milan C. Bayer1 , S. Stiefel1 , M. Follmann1 , and T. Melin1 1 AVT Chemical Process Engineering, RWTH Aachen University, Aachen, Germany
Friction Stir Welding (FSW) has gained much importance throughout the last years. Beside comprehensive experimental work that has been carried out, the simulation of the welding zone is of major interest. Due to the high strains... COMSOL Conference 2008, Hannover S. Dörfler Wilhelm Gronbach GmbH, Wasserburg a. Inn, Germany
“NASA\'s Advanced Exploration Systems (AES) program is pioneering new approaches for rapidly developing prototype systems, demonstrating key capabilities, and validating operational concepts for future human missions beyond Earth... COMSOL Conference 2012, Boston J. Knox1 , K. Kittredge1 , R.F. Coker1 , R. Cummings1 , C.F. Gomez1 1 NASA - Marshall Space Flight Center, Huntsville, AL, USA
The aim of the present work is the formulation of a theoretical model describing the transport phenomena involved in a food drying process by a convective oven. The proposed model represents a general and predictive tool capable of... COMSOL Conference 2006, Milan S. Curcio University of Calabria
Droplets spray deposition is an important materials process in which materials in the form of particulates or droplets (a mixture of liquid, semisolid and solid) are projected onto an arbitrary collecting surface and consolidate to build... COMSOL Conference 2006, Birmingham J. Mi, and P. Grant University of Oxford
Ammonia separation from water by membrane contactor was simulated on transient state and compared with experimental data. Aqueous low concentrated solution of ammonium with high pH has been pumped inside the hydrophobic hollow fibers,... COMSOL Conference 2012, Milan E. Licon1 , S. Casas1 , A. Alcaraz1 , J.L. Cortina1 , C. Valderrama1 1 Universitat Politécnica de Catalunya, Barcelona, Spain
A kernel of grain is modeled as an isothermal sphere, with descriptive differential equations scaled or rendered into non-dimensional form, where moisture transfer is governed by internal diffusivity, not by surface conditions. The time... COMSOL Conference 2009, Boston K. Lund1 1 Kurt Lund Consulting, Del Mar, California, USA
In a Solar Hot Water System, the hot water from the solar collector enters at the top of the storage tank. A relevant question concerning the storage is what will the outlet temperature be. In the present work we present a way to... COMSOL Conference 2006, Boston K.O. Lund Applied Chemical and Engineering Systems
TAP (Temporary Analysis of Products) reactors are powerful instruments to study the kinetics of catalytic reactions. Their basic principle, exposition of evacuated solids of interest to narrow pulses containing very small amounts of... COMSOL Conference 2010, Paris S. Pietrzyk1 , and G.S. Yablonsky2 1 Unité de Catalyse et Chimie du Solide, Université des Sciences et Technologies de Lille, France 2 Parks College, Saint Louis University, St. Louis, MO, USA
Clarifiers are used to separate sludge and water in waste water treatment plants. In this paper we analyze a malfunctioning clarifier using the mixture model. We are able to receive model results that are reasonably close to measurements... COMSOL Conference 2008, Hannover A. de Niet, A. van Nieuwenhuijzen, and A. Geilvoet Witteveen+Bos, Deventer, The Netherlands
The goal of this study was to determine the possibility of using the finite element in COMSOL Multiphysics program to obtain a high accuracy solution to a moving boundary problem, specifically, the solidification of copper. A... COMSOL Conference 2009, Boston J. Michalski1 , and E. Gutirrez-Miravete2 1 Hamilton-Sundstrand 2 Rensselaer at Hartford, Hartford, Connecticut, US
The purpose of this study was the optimization of an industrial furnace from a thermal point of view. Such a cylindrical furnace contains an Al-Mg molten alloy covered by a KCl-NaCl molten salt layer floating on it to prevent alloy... COMSOL Conference 2007, Grenoble J. P. Caire, and F. Jomard LEPMI, ENSEEG, Saint Martin d'Hères, France
FEMLAB has played a key role in the design and safety analysis of several key components of the new High Flux Isotope Reactor (HFIR) hydrogen (H2) cold neutron source (CS) at Oak Ridge National Laboratory (ORNL). The main components of... COMSOL Conference 2005, Boston Freels, J.D. Oak Ridge National Laboratory, Oak Ridge, TN
This study highlights the possibility of using COMSOL Multiphysics for solving large scale PEM fuel cell stack models in the order of several million degrees of freedom (DOF). First, different gas flow channel configurations are solved in... COMSOL Conference 2010, Paris C. Siegel1,2 , G. Bandlamudi1,2 , P. Beckhaus1 , and A. Heinzel1,2 1 Zentrum für BrennstoffzellenTechnik (ZBT), Duisburg, Germany 2 University of Duisburg-Essen, Duisburg, Germany
The Molten Salt Reactor (MSR), proposed along with other five innovative concepts of fission nuclear reactor by the Generation IV International Forum (GIF-IV), represents a challenging task from the modeling perspective because of the... COMSOL Conference 2009, Milan V. Memoli1 , A. Cammi1 , V. Di Marcello1 , and L. Luzzi1 1 Nuclear Engineering Division, Department of Energy, Politecnico di Milano, Milano, Italy
Hydrogen, the most abundant element in the universe, has great potential as an energy source, and can be generated from renewable energy sources. We used COMSOL for the solution of the energy, mass and momentum balance equations that... COMSOL Conference 2012, Milan S. Makridis1 , E.I. Gkanas1 , A. Ioannidou2 , E.S. Kikkinides2 , A.K. Stubos3 1 Department of Mechanical Engineering, University of Western Macedonia, Kozani, Greece & Environmental Research Laboratory, Institute of Nuclear Technology and Radiation Protection, NCSR “Demokritos”, Athens, Greece 2 Department of Mechanical Engineering, University of Western Macedonia, Kozani, Greece 3 Environmental Research Laboratory, Institute of Nuclear Technology and Radiation Protection, NCSR “Demokritos”, Athens, Greece
The hyporheic zone is defined as an area where water and matter exchange through the sand, gravel, sediments and other permeable soils under and beside streams. Its impact on the hydro-system function is determined by the proportion of... COMSOL Conference 2006, Paris D. Peyrard1 , Ph. Vervier1 , S. Sauvage1 , J.M. Sánchez-Pérez1 , and M. Quintard2 1 Laboratoire d’Ecologie des Hydrosystèmes, Toulouse 2 Institut de Mécanique des Fluides de Toulouse
Dew points higher than the inner surface temperature of a headlight can become cosmetic problems. In this paper, a suggested analytical approach of dew point analysis in headligths is brought forward. The analytical solution is based... COMSOL Conference 2006, Copenhagen E. Preihs General Motors Europe, Sweden
Verification of the codes applied for assessment of the long-term repository safety is typically one of the quality assurance requirements demanded by regulatory bodies, in the disposal of radioactive waste. In this paper, an... COMSOL Conference 2008, Hannover E. Weetjens SCK-CEN (the Belgian Nuclear Research Centre), Mol, Belgium
