J. van Schijndel
Eindhoven University of Technology,
Eindhoven, The Netherlands
Jos van Schijndel completed his MSc in 1998 at the Department of Applied Physics at the Eindhoven University of Technology (TUe). In 2007 he obtained a PhD degree at the TUe on integrated heat, air and moisture modeling. Currently, he is assistant professor focusing on Computational Building Physics. His passion is creative computational modeling using state of art scientific software and ...
I. Rodriguez, and J. L. Munoz
The field quality requirements of most particle accelerator magnets are very tight and, therefore, very precise simulations are needed to accurately calculate these devices. CERN\'s ROXIE code is widely used as a reference software to calculate normal conducting and superconducting magnets for particle accelerator applications. ROXIE uses the full vector potential coupled to the BEM-FEM method ...
A. Regtmeier, A. Weddemann, I. Ennen, and A. Hütten
Dept. of Physics, Thin Films and Physics of Nanostructures, Bielefeld University, Bielefeld, Germany
Dept. of Elect. Eng. and Comp. Science, Lab. for Electromagnetic and Electronic Syst., MIT, Cambridge, MA
Institute of Solid State Physics, Vienna University of Technology, Vienna, Austria
Superparamagnetic nanoparticles have a wide range of applications in modern electric devices. Recent developments have identified them as components for a new type of magnetoresistance sensor. We propose a model for the numeric evaluation of the sensor properties. Based on the solutions of the Landau-Lifshitz-Gilbert equation for a set of homogeneously magnetized spheres arranged in highly ...
N. Bhalla, S. Li, and D. Chung
Chung Yuan Christian University, Chungli,Taiwan
National Tsing Hua University, Hsinchu, Taiwan
Investigation in this paper aims at performing Mechanical Stress Strain analysis, Thermal, Piezoresistive and Piezoeletric analysis of Silicon Structures using COMSOL. The simulation results have been cross checked by mathematical calculation.
Modeling of the Heat Transfer Between a CO2 Sequestration Well and the Surrounding Geological Formation
B. Sponagle, M. Amadu, D. Groulx, and M. Pegg
Mechanical Engineering, Dalhousie University, Halifax, NS, Canada
Process Engineering and Applied Science, Dalhousie University, Halifax, NS, Canada
In a carbon sequestration system CO2 would be pumped down a well and into a reservoir at supercritical temperatures and pressures. An important consideration is the long term stability of the reservoir. The goal of these simulations is to thermally model the injection well and investigate the temperature gradient developed in the cap rock. Ultimately, results from this study will lead to an ...
P. Mercure, and R. Haley
The Dow Chemical Company, Midland, MI
ATM Research, Midland, MI
We demonstrate cartogram construction, where a geographical map is distorted to represent some measure, for example population, while trying to keep the shape of regions recognizable. We then apply this cartogram construction technique to optimize thermocouple locations. A heat generation and conduction model is used initialize the cartogram construction algorithm. A uniform distribution of ...
K. Alhazza, B. Albusairi, H. Kamal, H.M.S. Lababiedi, A.A. Abbas
Kuwait University, Kuwait City, Kuwait
Petrochemical Industries Company, Kuwait City, Kuwait
COMSOL Multiphysics has been used to validate and check the design of a header transporting ammonia gases released from pressure safety valves (PSVs) to the tip of the flare. The header is part of a dedicated flaring system to contain emissions from ammonia storage tanks. The two main challenges are the low relief pressure and high capacity of the system. Another difficulty is the high relief ...
A. Garcia, A. Marcus, F. Tejo, C. Precker, C. Moreira
Universidade Federal de Campina Grande, Campina Grande, PB, Brazil
Instituto Federal de Alagoas, Maceio, AL, Brazil
Piezoelectric buzzers are low cost devices which can be used successfully as actuators in diaphragm-based micro-pumps. The buzzers are piezoelectric wafers (lead-zirconate-titanate-PZT) that are glued on a brass membrane and they are available within different sizes and thicknesses. For the best performance of a diaphragm pump, it is necessary to have a large displacement of the membrane. This ...
A. Dobrinsky, M. Shatalov, M. Shur, R. Gaska
Sensor Electronic Technology, Columbia, SC, USA
Deep Ultraviolet Light Emitting Diodes (DUV LEDs) are presently operating at a relatively low efficiency, thus large amount of LED driving power is dissipating in heat. Thermal heating degrades LED performance and decreases LED’s lifetime. The degradation of DUV LED devices with temperature increase makes thermal management a key issue for DUV LEDs. We present a thermal analysis of DUV LED ...
R.E. Tosh, H. Chen-Mayer
National Institute of Standards and Technology, Gaithersburg, MD, USA
The technique of water calorimetry for primary-standard dosimetry of radiotherapy-level ionizing radiation is well established at national metrology institutes around the world, where such a direct realization of absorbed dose establishes the basis for calibrating instruments used for dosimetry in medical settings. The typical calorimeter system uses miniature thermistor beads to measure ...