F. Giacometti, C. R. Lines, R. J. Cruise
Texchange Limited, London, UK
A COMSOL Multiphysics® model is used to optimise the slot geometry of a large air-gap linear synchronous motor. Fixed dimensions are used for the pole pitch, stator depth, stator width and air-gap, since the amount of available space is usually limited. A parametric sweep of the slot-width-to-tooth-width ratio is used to find the optimum geometry where the maximum thrust force is produced ...
F. Alzahrani, F. Aiouache
Engineering Department, Lancaster University, Lancaster, UK
This work used the 3D CFD modeling to investigate non-uniform deactivation in packed bed reactors of low aspect ratios under steady state and dynamic operations. In order to explore the effects of condition of instability on local deactivation, detailed knowledge of flow dynamics (i.e. local structure of the packed bed, pressure drops and interstitial flow in the void space), heat and mass rate ...
F. Boukrouche, C. Moreau, W. Frelin
EDF R&D, Moret-sur-Loing, France
Electric power, in cities or for power plant outflow, is most often transmitted through underground cables. Due to increased electricity demands power suppliers make large investments to house these cables in deep or shallow tunnels. The thermal environment is complex, with different kind of cables placed in different configurations, transmitting different powers. These are hard to take into ...
Modeling of Magnetization and Intrinsic Properties of Ideal Type-II Superconductors in an External Magnetic Field
O. Chevtchenko, J. Smit, D. de Vries, F. de Pont
Delft University of Technology, Delft, Netherlands
COMSOL BV, Zoetermeer, Netherlands
A COMSOL Multiphysics® model is developed for ideal type II superconductor with Ginzburg-Landau (GL) parameter κ~50 typical for practical high field, high current superconductors The model is validated by computing magnetization of such superconductor for every value of external magnetic field and comparing it to that of Brandt  Excellent agreement between these through the entire magnetic ...
T. Gál, Ö. Sepsi, P. Koppa
Budapest University of Technology and Economics, Budapest, Hungary
Plasmonic nanoparticles have received increased interest due to their numerous potential applications in the field of optics and optoelectronics. Currently such metallic nanoparticles are applied in semiconductor devices, such as light emitting diodes (LEDs) and solar cells. The optical behaviour of a single plasmonic nanoparticle is can be easily described with several analytic or semianalytic ...
A. Arevalo, I. G. Foulds
Computer, Electrical and Mathematical Sciences and Engineering Division (CEMSE), King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
School of Engineering, Okanagan Campus, The University of British Columbia, Vancouver, BC, Canada
Joule heating is simulated in COMSOL Multiphysics® software for the electro-thermal micro actuator. The aim is to choose the optimal design parameters to get the largest possible in-plane displacement. The comparison between the different possible configurations will reveal the optimal parameters for the longest displacement. Our current micro fabrication process allows the actuator to use ...
Satoshi Fujii et al.
Chiba University, Chiba, Chiba, Japan
Chemical reactions conducted under microwave irradiation have high reaction rates and high selectivity, but these reaction rates are not always reproducible. To achieve reproducibility, a solid-state microwave source with an ultra precise oscillator, high power amplifier module (HPA), and elliptical applicator is developed. This HPA has up to 141 W average power and generates pure 2.45-GHz sine ...
K. Burkes[1,2], E. Makram, R. Hadidi
Department of Electrical Engineering, Clemson University, Clemson, SC, USA
Savannah River National Lab, R&D Instrumentation, Aiken, SC, USA
COMSOL Multiphysics® software is used to model a water tree in tape shield and concentric neutral cables. It allows for the effect on electric field intensity at the tip of the water tree and electric potential due to the water tree to be better understood. Also, COMSOL is used to calculate the resistance and capacitance of a section of cable with a water tree as it grows across the insulation. ...
F. Chen, T. Gulati, H. Zhu, A. K. Datta
Cornell University, Ithaca, NY, USA
This research studies the thermal effect of frozen pie heating in the microwave oven. Considering as composite material, the properties of pie derived based on its composition. Here the package, susceptor’s influence to the temperature distribution is also studied.
R. Kiflemariam, H. Fekramandi, C. Lin
Department of Mechanical & Materials Engineering, Florida International University, Miami, FL, USA
A 3D electro-conjugate heat transfer model was made to study an embedded microfluidic/TEG system (μF/TEG) system. An innovative embedded microfluidic/TEG system (μF/TEG) system is proposed which enables a device to be able to provide power to its cooling system eliminating external power input and resulting in energy efficient and more reliable heat removal system. The research identifies ...