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.

Remote Monitoring of Structures in Composite Materials via Embedded Thermo-Chemical Sensors

B. Golchinfar [1], M. Rutner [1], D. Donskoy [1],
[1] Stevens Institute of Technology, Hoboken, NJ, USA

Composite systems are becoming more and more widespread across industries and the capability to finding and tracking internal defects before they have grown to major deterioration is of paramount importance in regard to safety, economy and maintenance. We are exploring a novel method of internal damage detection and tracking in composite material using thermo-chemical sensing. Various types of ...

Numerical Model Simulation of Impedance Based Control for RF Ablation Using Isolator Synergy Clamp

M. Etheridge [1], R. Lopusnik [1], A. Cates [1],
[1] AtriCure, Inc., Minnetonka, MN, USA

Thermal ablation is rapidly becoming a standard of care for the treatment of atrial fibrillation (AF), a cardiac disorder characterized by irregular heart rhythm and estimated to impact more than 33 million people worldwide (Chugh et al. Circulation (2013)). AtriCure is a company that specializes in epicardial ablation for AF and here we describe modeling the performance of the Isolator Synergy ...

Urban Air Purification Using Semi-Active Photocatalysis

M. Boumahdi [1], J. Roegiers [2] , C. El Amrani [1] , S. Denys [2]
[1]Department of Computer Engineering, Abdelmalek Essaadi University, Tangier, Morocco
[2]Sustainable Energy, Air & Water Technology, Department of Bioscience Engineering, University of Antwerp, Antwerp, Belgium

Photocatalysis has received considerable attention in recent years with a huge potential in air purification applications. This work focusses on the semi-passive use of photocatalytic surfaces in streets as an innovative method for removing anthropogenic pollutants (especially volatile organic compounds or VOC’s) from urban air. The proposed method is based on lamellae, coated with a ...

Thermal Analysis of Electrorefiner for Engineering Scale Pyroprocessing Studies

S. Agarwal, S.P. Ruhela, V. Mente, M.G. Hemanath, B. Murlidhran, V.S. Kumar, C.P. Reddy, G. Ravisankar, B.K. Sharma, K. Nagarajan, C.A. Babu, and P. Kalyanasundaram
Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu, India

Pyrochemical process based on molten salt electrorefining is ideally suited for reprocessing spent metallic fuels from Fast Breeder Reactors. In this work, a heat transfer analysis of the Electrorefiner cell was conducted to develop a basic tool for designing of the engineering–scale Electrorefiner. The focus of this work is to find out steady state temperature profiles of cover gas and molten ...

Control Synthesis for Distributed Parameter Systems Modeled by FEM in COMSOL Multiphysics

C. Belavý, G. Hulkó, P. Buček, and S. Lel'o
Slovak University of Technology in Bratislava, Bratislava, Slovakia

Technological processes in the engineering practice from point of view of systems and control theory are frequently in the form of distributed parameter systems (DPS). Techniques of FEM based modeling and design of control synthesis methods of DPS which is acceptable for various technological processes, will be demonstrated on modeling and control of temperature fields of the glass melting ...

Modeling of Atmosphere Revitalization

R. Coker[1], J. Knox[1], K. Kittredge[1]
[1]NASA - Marshall Space Flight Center, Huntsville, AL, USA

All spacecraft systems must be minimized with respect to mass, power, and volume. Here, we focus on current efforts to improve system efficiency and reliability for water separation systems to be used on crewed vehicles. These development efforts combine sub-scale systems testing and multi-physics simulations to evaluate candidate approaches. The best performing options will then be ...

Thermo-mechanical Modeling of Pu-238 Production Target at HFIR

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

The production model in the COMSOL Multiphysics® software makes use of the most up-to-date PIE data, material property inputs, and modeling methodology. The fully coupled thermo-mechanical equations are solved over the entire domain, significantly increasing the degrees of freedom required for a solution, in addition to several other improvements in the computational methodology of the model. ...

Si-Infiltrated SiC Lattices in Elevated Temperatures: A Thermo-Mechanical Analysis

E. Rezaei [1],
[1] EPFL, Lugano, Switzerland

Si-infiltrated SiC porous composites exist in different forms composed of cores of cellular ceramic and skin plates of ceramic matrix composites. Due to high thermal conductivity, low coefficient of thermal expansion, high elastic modulus and high strength, the final product can be a promising candidate for applications in temperatures up to 1500 K such heat exchangers, recuperators and solar ...

Influence of Axial Conduction in the Design of a Compact Recuperator for Catalytic Combustor Based Portable Power Generation - new

A. N. Smith[1], H. Nochetto[2], C. M. Waits[2]
[1]U.S. Naval Academy, Annapolis, MD, USA
[2]U.S. Army Research Lab, Adelphi, MD, USA

Catalytic micro-combustor represents an exciting area of research for portable power generation. Extensive research is being currently conducted on the design of the reactor and catalyst selection [1]. However another critical element of the design will be a recuperator to minimize losses and provide energy at a more uniform temperature. The mini-recuperator must be both compact and highly ...

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