R. K. Krishna, R. Ramachandran, and P. Srinivasan
Birla Institute of Technology and Science
An attempt has been made to sustain the efficiency of an air pre-heater(APH) in the long run. The APH is modeled using COMSOL Multiphysics in 3D and fed with real life conditions. Upon Heat transfer analysis, the temperature profile was found out and from that, the regions undergoing maximum thermal fatigue stress was identified. The plates of the APH to the periphery are subjected to maximum ...
R. Karthick, S. P. K. Babu, A. R. Abirami, and S. Kalainila
Periyar Maniammai University
This paper presents the design and simulation of high sensitivity and fast response capacitive humidity sensor. Generally, the capacitive humidity sensor is made up of parallel electrode, the upper electrode being a grid with various line width and line spacing. A model is simulated using COMSOL Multiphysics. High sensitivity and fast response of the model is optimized by varying the ...
Visvesvaraya National Institute of Technology
Vibrating mechanical tank components, such as quartz crystals and surface acoustic wave (SAW) resonators with Q’s in the range of 10e3–10e6, are widely used to implement high-Q oscillators and band pass filters in the radio frequency (RF) and intermediate frequency (IF) stages of communication transceivers. This paper will discuss designing of resonator and effects of various parameter on the ...
S. L. Pinjare, V. S. Nagaraj, S. N. Savitha, S. Kesari, M. S. Sagar, and K. R. Roshan
Nitte Meenakshi Institute of Technology
The MEMS microphone is also called microphone chip or silicon microphone. The pressure sensitive diaphragm is etched directly into a silicon chip by MEMS techniques and is usually accompanied with integrated preamplifier. Most MEMS microphones are variants of the condenser microphone design. The MEMS microphone has been successfully fabricated and tested in an anechoic chamber. The microphone ...
Numerical Study on Mechanical Properties of Stents with Different Materials during Stent Deployment with Balloon Expansion.
P. Ghosh, K. DasGupta, D. Nag, and A. Chanda
School of Bio Science & Engineering, Jadavpur University, Kolkata, West Bengal, India
Mechanical Engineering Department, Jadavpur University, Kolkata, West Bengal, India
The main reason for stent implantation is to provide mechanical support to the arterial wall. So it is important to consider the different mechanical properties of different stent materials while studying the stent implant’s efficacy. The present study gives a comparative overview of mechanical aspects of different stent materials which are most commonly used in angioplasty. Deformation ...
N. Gouthami, D. Parthiban, M. Alagappan, and G. Anju
PSG College of Technology
Tamil Nadu, India
The objective of this paper is to design a 3D Gas Sensor for sensing Hydrogen gas and to increase the conductivity at nano level. In this novel design, nanorods act as the sensing layer. The sensitivity towards gas adsorption is found to be increased due to its high surface to volume ratio. The total displacement and voltage on intermediate layer after gas adsorption will be changing by varying ...
D. Das, S. Sohail, S. Das, and K. Biswas
Electrical Engineering Department, IIT Kharagpur, India
School of Medical Science and Technology, IIT Kharagpur, India
Electrowetting on Dielectrics (EWOD)systems is widely practiced digital microfluidic technique, used in Lab-on-a-Chip (LoC) system for biomedical application. In EWOD, with applied potential, the droplet minimizes its surface energy by transiting towards the actuated electrode. The problems with EWOD device for biological sample are that it will damage the cells if applied voltage across it ...
3-D Design, Electro-Thermal Simulation and Geometrical Optimization of Spiral Platinum Micro-Heaters for Low Power Gas Sensing Applications Using COMSOL 4.1
V. Bansal, D. Kumar, B. Prasad, and A. Gujjar
Electronic Science Department
In this paper a thermal electric finite element method (FEM) analysis was used to investigate the thermal properties of individual electrically driven platinum micro-heaters. The geometric optimization for the micro-heater was performed by simulating a wide range of possible geometries using COMSOL 4.1. The simulated results of micro-heaters having an improved temperature distribution over ...
S. Gawade, P. P. Date, and S. B. Sharma
Production Engineering. Dept. SGGS IE&T, Nanded, India
Mechanical Engineering. Dept, IIT, Bombay, India
Electromagnetic forming (EMF) is a typical high speed forming process using the energy density of a pulsed magnetic field to form workpieces made of metals with high electrical conductivity like e.g. aluminium. This forming process can be very advantageous as compared to conventional forming process. EMF process is simulated by a commercial finite element analysis (FEA) solver, COMSOL ...
A. R. Kalaiarasi, and S. H. Thilagar
Electrothermal actuators are capable of providing larger displacements compared to electrostatic actuators. Four designs for ETC actuators with the same material properties and same dimensions are studied.