Volume 01 Issue 01
Comparison of Hardness and Drilling of Alumina Reinforced AMMC and Silicon Reinforced AMMC
M. Samuel, M. Arun Prasath, R. Pavendhan, D. Jayanathan, T. Vasanthan | pp: 01-06 | Purchase PDF
Abstract: Aluminum alloy 7075 finds application in the wide area ranging from automobile to aeronautical fields owing to its higher corrosion resistance and light weight nature. But the mechanical properties like hardness and tensile properties needs to be improved, which may be achieved using some reinforcement particles. In the present work two Aluminum Metal Matrix Composites (AMMC) were fabricated through stir casting technique using different reinforcement particles (Alumina powder and silicon metal powder) in varying compositions of 5%, 10% and 15% by weight. These Particles reinforced AMMC were tested for hardness using Vickers hardness testing method. Similarly, the forces required for drilling on these AMMCs were also determined.
CO2 Laser Cutting of Sisal Fibre Reinforced Polyester Composite
S. Kalirasu, N. Rajini, S. Rajesh, R. Durkesh Nandhini | pp: 07-10 | Purchase PDF
Abstract: Laser, a developing technology been extensively used in machining for its high quality cutting. This article presents sisal fibre reinforced polyester composite machining with the help of CO2 laser. Using compression moulding technique sisal fibre reinforced polyester composite has been produced with composite material of 50% and 3mm thickness. Under three conditions (75W, 85W and 95W) composite undergoes machining, thus kerf is formed. The optimum kerf and its quality are analyzed under optical microscope. Heat Affected Zone (HAZ) is checked in composite materials. The hardness of the composite is checked through shore-D hardness tester after cutting process.
Partial Speech Recognition Using NAM Microphone
K. Girija, R. Bhuvanya, D. Saravanan, B. Kumaragurubaran | pp: 11-17 | Purchase PDF
Abstract: In the present study, we present a scheme for recognizing partial speech with the aid of nonaudible murmur (NAM). NAM is said to be a quiet murmur that is so low that even people nearby the speaker cannot hear it. It can be detected only with the help of a special body-conductive microphone termed as NAM microphone. This can help people who are in need of private conversation in a public place without annoying others. This approach can be used for impaired people who can hear sound but can speak only few partial words (Semi-mute). Our proposed method makes use of Tamil speech recognition engine (TSRE) and NAM microphone. Experimental results have proved that NAM microphone is far better in recognizing partial speech compared to normal microphone.
Design and Fabrication of Chamfering of Super-Critical Burner Panel Assembly
G. Elatharasan, R. Manikandan, G. Karthikeyan | pp: 18-21 | Purchase PDF
Abstract: In this investigation about the importance, technical aspects, problems arising and the solutions for the chamfering of inclined part in super-critical burner panel assembly which is one of the components of boiler. In burner panel there are several tubes and they are in several planes. Only the tubes in horizontal planes are chamfered by using a chamfering machine. If the tubes is inclined plane are chamfered a crane need to hold the burner panel. And there some disadvantages occur when this plan is implemented. Present work is to reduce or eliminate the problems. The present to be achieved by accommodate suitable attachments to the chamfering machine which enables the tilting of chamfering machine. Thereby the tubes in inclined planes of burner panel assembly may chamfer.
Design and Analysis of Single Point Cutting Tool Based on Various Insert Shapes
V. Kathiroli, P. Akshath Saboo, S. S. Subramanian, S. Sivarajan | pp: 22-25 | Purchase PDF
Abstract: This study has been aimed at drafting and analyzing single point cutting tools based on various insert shapes. The models were made using SOLIDWORKS software and the analysis was done using ANSYS. Von-mises Stress distribution, Total Deformation, Strain, Strain energy based on non-linear analysis of the cutting edges were calculated under a cutting force of 5000N and a shear force of 2000N is applied with increments 10% of maximum value starting 0N. The result gives the best shape that undergoes least tool wear and least deformation under different load conditions.
Design and Analysis of Duct Type Solar Water Heating System
S. Thulasi, S. Jaisankar, J. Ragu, A. Pravin infent | pp: 26-29 | Purchase PDF
Abstract: The present work has been undertaken to obtain the higher efficiency to modified copper duct type solar water heating systems. Solar water heating systems comprise various technologies that are used worldwide increasingly. In order to heat water using solar energy, a collector, often fastened to a roof or wall facing the sun, heats a working fluid that is driven by natural convection through it. The collector could be made of a simple glass-topped insulated box with a flat solar absorber made of copper metal, attached to copper heat exchanger pipes and dark colored. Heat is stored in hot water storage tank. The solar water heating system has modified into pipe duct type and rectangular box type systems, both are made up by copper duct. Copper absorbs the heat of the sun directly and transfer the thermal energy to the following water. Hence hot water is always available. This paper explains the fabrication and its operating procedures of copper duct type solar water heating systems.
Removal of Residual Magnetism before Arc Welding by Bridge Piece Technique – A case study
A. Arun, A. Ramchandran, M. Vinoth | pp: 30-32 | Purchase PDF
Abstract: Tubes and Pipes used in Boiler Industries are commonly fabricated by using arc Welding Process. One of the major challenging factors in arc welding of pipes and tubes having residual magnetism is Arc Blow. Many Demagnetization methods are employed for reducing this residual magnetism before welding. But all these methods have certain limitations which restrict their usage for many industrial applications. Bridge Piece Technique is a thermal demagnetization method developed in a simple and practical manner to sort out this issue. This article clearly explains the principle and simple procedure for adopting bridge piece technique to remove residual magnetism before arc welding of pipe / tubes.
Effect of Oryza Punctata Synthesized with Zinc Oxide Nano Particles as Single Layer Anti Reflection Coating Layer in mono Crystalline Silicon Solar Cell
N. Srinivas, M.Vinoth, B. Kumaragurubaran, T. Senthil Kumar | pp: 33-36 | Purchase PDF
Abstract: Oryza Punctata alias mappillai samba rice extract can be act as a bio template and coloring element. Bio template causes to synthesis various functional nano materials and the color element of the extract tends to harvest light apparently. While the oryza punctata synthesized with Zinc acetate by wet chemical method, the product comes to Oryza punctata doped ZnO nano particles successfully. X-Ray diffraction analysis showed that the prepared material possess crystalline in nature with hexagonal structure. Dynamic light scattering reveals the prepared OP-ZnO materials in stable and the molecular structure in nanometer. FESEM showed that the prepared material possess flower shape morphology, Nanoflowers. The OP-ZnO nano material brought into application of antireflective coating layer on mono crystalline silicon solar cell and performance compared with uncoated silicon solar cell. After OP doped ZnO ARC application, the cell efficiency could be improved up to 11.25% for an mono crystalline silicon solar cell from the value of 10.34%.
Ameliorated PSO: Application to the solution of Economic Load Dispatch Problems Considering Valve-Point Loading and Multiple Fuel Options
V. P. Sakthivel | pp: 37-45 | Purchase PDF
Abstract: This study presents an ameliorated particle swarm optimization (APSO) for the solution of the constrained economic load dispatch (ELD) problems in different power systems considering valve-point loading and multiple fuel options of generators. In the suggested APSO algorithm, the chaotic behavior of logistic map is employed into the inertia weight factor of particle swarm optimization (PSO) in order to improve the diversity of solutions and to avoid being trapped in the local optima. This novel algorithm which combines the fortes of PSO and chaotic dynamics, is then employed to solve the ELD problem. It is used to determine the optimized generation of each committed units which minimize the total fuel cost of the power plant. Two different test systems are used to verify the superiority of the suggested APSO approach. The simulation results revealed that the suggested APSO approach converges speedily and has better solution quality in solving the ELD problems with valve-point loading and multiple fuel options compared with other kinds of distinguished heuristic approaches.