Espinoza Vallejos, P.A.1, Furlan, R.2, Sotero-Esteva, J.2, Perez Tolentino, M.2, Wagner Simoes, E.3, Santiago-Aviles, J.J.4
1 Technology Assessment and Transfer, Millersville, MD
2 University of Puerto Rico at Humacao, Humacao, PR
3 Laboratory of Integrated Systems of the University of Sao Paulo, Brazil
4 University of Pennsylvania, Philadelphia, PA
The high energy density of some fossil fuels makes them attractive to power portable devices through the use of thermoelectric conversion elements. The idea explored here is the fabrication of a ceramic combustor using Low Temperature Co-Fired Ceramics tapes. We would like to optimize through simulations the pre-mixing of the fuel (Hydrogen gas) and oxidizer (Oxygen from Air), and the ...
G. Petrone, G. Cammarata, S. Caggia, and M. Anastasi
Department of Industrial and Mechanical Engineering, University of Catania, Catania, Italy
Engineering Maintenance - ISAB Energy Services, Priolo Gargallo, Italy
In this study, COMSOL Multiphysics is applied in order to simulate reacting flows for duct burner systems arranged in the post-firing section of a Heat Recovery Steam Generator of a combined cycle power plant. Two- and three-dimensional simulations are carried out in order to investigate on operative conditions mainly responsible of duct burners overheating. The results are obtained for several ...
J. Podichetty Thribhuvan, S.V. Madihally
Oklahoma State University, Stillwater, OK, USA
Utilization of bioreactors to regenerate tissues outside the body has been intensely investigated in functional tissue engineering. Various studies have been performed using computational fluid dynamics (CFD) to understand fluid flow within bioreactors while assuming porous scaffold as a rigid structure. However, the physical and mechanical properties of most tissue engineering scaffolds suggest ...
M. Nebyla, M. Pribyl
Institute of Chemical Technology, Prague, Department of Chemical Engineering, Prague, Czech Republic
We introduce a mathematical model of signal transmission in simple epithelial layers. The mathematical model consists of reaction-transport equations for extracellular ligands, cellular receptors, ligand-receptor complexes and a ligand releasing protease. We consider diffusion and nonstationary convective transport of protein ligands in the extracellular space. The study was carried out using ...
CNR-ITAE, Institute of Advanced Technologies for Energy, Messina, Italy
A biogas steam reforming reactor has been developed in order to be integrated into a proof-of-concept SOFC system, able to operate with biogas produced in an industrial waste water treatment unit. A mathematical model, aimed at describing the performance of the reactor, has been developed. The reactor is simplified and modeled as a non-isothermal plug flow reactor. The reactor is fed with a total ...
Bruce A. Finlayson
University of Washington
This talk demonstrates the success in teaching chemical engineering undergraduates to use COMSOL Multiphysics (FEMLAB) to solve realistic problems in a project format. Undergraduates have been creative and solved problems much more difficult than those in their textbooks, thus gaining a deeper understanding of transport processes. Illustrations are also given how they check to see they’ve ...
J. Selig, and S. Lin
Lamar University, Beaumont, TX, USA
Self-propagating High-temperature Synthesis (SHS), a very economical synthesis of oxides was used in our lab to produce oxide materials. SHS process uses a highly exothermic reaction to convert reactants rapidly to pure products with minimal external energy input. This reaction is initiated by an igniter and reaction front propagates from the ignition through the rest of the sample. The fast ...
M. Hackert-Oschätzchen, M. Penzel, P. Plänitz, A. Schubert
Chemnitz University of Technology, Chemnitz, Germany
GWT-TUD, Dresden, Germany
Fraunhofer Institute for Machine Tools and Forming Technology IWU, Chemnitz, Germany
Gallium nitride (GaN) and its related nitride alloys with special physical properties are in technical areas of high interest. The growing of gallium nitride boules on non-native sapphire or silicon carbide requires complicated mechanisms of defect reduction in the lattice structure. Thus the production of gallium nitride substrates is a challenge. Hydride Vapor Phase Epitaxy (HVPE) is a ...
Finite Element Analysis of Induced Electroosmotic Flow in Brain Tissue and Application to ex vivo Determination of Enzyme Activity
Y. Ou, A. Rupert, M. Sandberg, S. Weber
University of Pittsburgh, Pittsburgh, PA, USA
University of Gothenburg, Gothenburg, Sweden
Ectopeptidases are commonly accepted to be a means of clearing active peptides. However, studies have shown that they can also regulate peptide activity. We have developed a technique of electrokinetic push-pull perfusion (Ek-PPP, Figure 1) to examine this largely unexplored mechanism of modulation of peptide function. We push the neuropeptide galanin through organotypic hippocampal slice ...
A. Fayolas , M.G. Sanku, M. Pascoa, M. Xynou
KTH Royal Institute of Technology, Stockholm, Sweden
The objective of the study is to investigate the chiral separation of Tröger’s base enantiomers using batch chromatography. Because of its resolution, chromatography is often the preferred method for chiral separations. The separation of Tröger’s base is resolved by using the COMSOL Multiphysics® software. It is modeled by one dimension geometry, having the length of the column set and ...