Here you will find presentations given at COMSOL Conferences around the globe. The presentations explore the innovative research and products designed by your peers using COMSOL Multiphysics. Research topics span a wide array of industries and application areas, including the electrical, mechanical, fluid, and chemical disciplines. Use the Quick Search to find presentations pertaining to your application area.

A COMSOL Multiphysics® Study of the Temperature Effect on Chemical Permeation of Air Supply Tubes

R. Kher [1], C. Gallaschun [1], D. Crockill [1], R. Pillai [1], ,
[1] Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, PA, USA

Air supply hoses are also predominantly used in the medical industry to aid in patient oxygen intake. In many situations, the outside of the hose can be contaminated with chemicals, especially if the hose lies on the ground in an environment where chemicals are easily found. Permeation and transport of chemicals into the walls of air supply hoses is a noteworthy problem in the chemical ...

Radiation Heat Transfer in Imaging Infrared Spectrometer

A. Jhaveri [1], M. Kushhare [1], A. Bhargav [1],
[1] Indian Institute of Technology Gandhinagar, Gandhinagar, Gujarat, India.

Imaging Infrared Spectrometer (IIRS) is a Hyperspectral optical imaging instrument which measures the spectra of a scene in high resolution within spectral bands covering Near Infrared (NIR) to Mid Infrared (MIR) regions. Radiation entering the spectrometer assembly governs the temperature of different internal parts and hence plays an important role in determining the desired spectral ...

Simulation and Performance Analysis of Nanowire Design with Different Variants

Boopathi S[1], Ms.E.Malar[1], Deepan Chakravarthi P[1]
[1]Department of Biomedical Engineering, PSG College of Technology, Coimbatore, Tamil Nadu, India

This paper deals with an integrated numerical and experimental analysis work aiming at the investigation of the thermal stress on nanowires in electronic gadgets especially computers and mobile phones. The comparative study of the nanowires are analyzed through the Thermal Stress physics using different variants such as Cu, Al, ZnO, Si(c), SiO2 which can be used in sensors, solar cells, LCD, ...

Inclusive Routine of the Soil Surface Energy Balance in COMSOL Multiphysics® - new

M. Bortoloni[1], M. Bottarelli[2], Y. Su[3]
[1]Department of Engineering, University of Ferrara, Este, Italy
[2]Department of Architecture, University of Ferrara, Este, Italy
[3]Faculty of Engineering, University of Nottingham, Nottingham, UK

In ground-coupled heat pumps (GCHPs) the coupling between heat pumps and ground occurs by means of ground heat exchangers, that can be installed vertically inside boreholes (BHEs) or horizontally (HGHEs). In the horizontal installation, the heat exchangers are placed in shallow trenches dug few meters deep in soil. Unlike BHEs which benefit from the relatively stable temperature of deep soil, ...

Simulation of Fast Response Thermocouple for the Nuclear Reactor Core

K. Dusarlapudi[1], B. K. Nashine[2], D. Bai[3], and C. S. Babu[1]
[1]KL University, Vaddeswaram, Guntur, Andhra Pradesh, India
[2]E.D&S.S, IGCAR Kalpakkam, India
[3]VIT, Vellore, India

Thermocouples have been used for measurement of temperature ever since the discovery of Seebeck effect. Though the voltage output of a thermocouple is a function of the temperature difference between hot and cold junctions, the response time and the magnitude of voltage depends on the geometry and material of the thermocouple also. This report deals with the study of the mineral-insulted ...

Investigation of Thermal Contact Gas Gap Conductance Using COMSOL Multiphysics®

J. D. Freels[1], P. K. Jain[1], C. J. Hurt[2]
[1]Oak Ridge National Laboratory, Oak Ridge, TN, USA
[2]The University of Tennessee, Knoxville, TN, USA

Our safety analysis group in the Research Reactors Division of Oak Ridge National Laboratory supports a project to investigate the production of Pu-238 isotope for missions of deep space travel in the High Flux Research Reactor. COMSOL Multiphysics® has been used to support this activity in the past, and we have successfully installed and irradiated three different target designs. The gas-gap ...

Temperature Propagation during Cell Stacking Processes for Lithium-Ion Cells

G. Liebig [1], P. Bohn [2], L. Komsiyska [1], S. Vasić [1]
[1] NEXT ENERGY EWE-Forschungszentrum, Oldenburg, Germany
[2] AUDI AG, Ingolstadt, Germany

A thermo-physical 3D model of a commercial Li-ion battery was developed and validated. Visualization of the temperature distributions inside a Li-ion cell during cell stacking processes were simulated. Critical temperature levels depend on position, duration and intensity of the thermal stressing. Results show a maximum local temperature of 180 °C at the jelly roll after laser welding for 4 s ...

Multiphysics Modelling of a Microwave Furnace for Efficient Solar Silicon Production

N. Rezaii [1], J. P. Mai [1],
[1] JPM Silicon GmbH, Braunschweig, Germany

The JPM Silicon GmbH presents a novel method for the production of solar grade silicon in the microwave oven. This method can specially reduce the energy costs and increase the efficiency of the process. A numerical model is developed which depicts the physical, chemical and electromagnetic phenomena of silicon production process. In order to increase the efficiency of the system, it is ...

Simulation of Heat Transfer on Periodic Microstructured Surfaces for Evaporation Cooling

M. Hackert-Oschätzchen[1], R. Paul[1], M. Penzel[1], M. Zinecker[1], A. Schubert[1]
[1]Professorship Micromanufacturing Technology, Technische Universität Chemnitz, Chemnitz, Germany

Evaporative cooling is a promising cooling method for dissipating high heat fluxes in high power density applications. One possibility to enhance heat flux is a generation of microstructures into the cooler surface. This enlarges the cooler surface and systematically affects the fluid flow as well as the boiling process. In this study the geometric arrangement of cylindrical pin microstructures ...

Passive Thermal Control for Window Insulation - new

E. Konroyd-Bolden[1], Dr. Z. Liao[1]
[1]Department of Architectural Science, Ryerson University, Toronto, ON, Canada

A requirement of the building envelope is to act as environmental separator. Energy is one component that we sometimes wish to control. How can this yield passive benefits such as solar heating? This research focuses on control of thermal radiation energy, and the role windows play as transfer medium between indoor and outdoor environments. A novel concept for passively controlling solar ...