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Āvadi, India

Rajan K.,Vel Technology
Journal of Theoretical and Applied Information Technology

This article presents the design of hybrid controller (proportional double integral controller (PDIC) plus fuzzy logic controller (FLC)) in load frequency control (LFC) for multi area hydro thermal system (MAHTS). In this case, two control areas connected through the tie line and each area consists of both the hydro and thermal power system. The conventional controllers are incapable of stabilizing the frequency deviation as well as the power oscillation of it at load variations conditions. In order to stabilize the frequency deviation and improve the dynamic performance of MAHTS, a PDIC plus FLC is developed. The complete model with various controllers is implemented in MATLAB/Simulink. The performance of designed controller is validated at various operating state in comparison with a conventional controllers. The simulation results are indicated that the designed controller more superior than the conventional controllers. © 2005 - 2014 JATIT & LLS. All rights reserved. Source

MuthuManokar A.,Vel Technology
Journal of Chemical and Pharmaceutical Sciences

Scarcity for water exists in many countries even though three fourth of the earth is covered by water. This is due to the rapid growth of industries and the immeasurable population of the world. Solar still is the efficient solution to solve water problem in areas of dry weather where there is scarcity of water and electricity. Solar still is a very simple solar device that is used for converting the available brackish water into potable water. This paper presents a new approach to enhance the chemical reaction and the productivity by the use of titanium dioxide as photo-catalyst. Using titanium dioxide, TiO2 as photo-catalyst, the process was successfully degraded and reduces the organic pollutant and microorganisms in wastewater. It is non-toxicity, photo-chemically unwavering and highly reactive. Otherwise, the catalyst itself is inexpensive and commercially available in various crystalline forms. The daily productivity of single basin single slope solar still without the use of photo-catalysis was 615 ML/0.25M2/day and with the use of photo-catalysis was 670 ML/0.25M2/day. Source

Sibi Chakkaravarthy S.,Vel Technology Drrr And Drsr Technical University | Nair R.R.,Vel Technology | Visu P.,Vel Technology Drrr And Drsr Technical University
Life Science Journal

A Novel method used for recognizing a human body in all textural posture was proposed here. The method is to recognize the human gesture so that the human can be identified easily. If the human is subjected to the identification where the intensity of environment lapse, "mapping" is applied to separate the human from environmental background. The system authenticates & actuates by means of several procedural actions such as abstract formation for human body & necessary actions to be taken out to predict the skeleton, point generation based on 3d posture based point value of an image predicted for human body skeleton, segmentation of human body, generating value for each segmentation and generating code for the value obtained from the predicted posture. Experimental results demonstrating the proposed approach was also included. Source

Chandramohan D.,Vel Technology | Senthilathiban A.,Apollo Engineering College
International Journal of Applied Chemistry

Jute fiber reinforced low density polyethylene (LDPE) composites (10-30% fiber, by weight) are prepared by compression molding. Tensile strength (TS), bending strength (BS) and bending elongation (BE) of the composites are increased over LDPE. Jute fiber is treated with monomer (2-hydroxyethyl methacrylate, HEMA) along with two different initiators in methanol solvent. Jute fibers are soaked with 10% HEMA+2% Irgacure-184 (F1-Formulation) and 3% HEMA+2% benzol peroxide (F2-Formulation) and dried at 80°C for 2 hours then composites are fabricated by compression molding. It is found that due to chemical treatment of the jute fibers, a significant improvement of the mechanical properties of the composites are happened (56% TS, 30% BS and 35% BE) compared to the LDPE. 3%HEMA+2% benzol peroxide treated jute composites found better mechanical properties compared to 10%HEMA+2% Irgacure-184 treated jute composites. Dielectric constant and loss tangent of the composites are increased with increasing temperature up to a transition temperature and then decreased, finally reached to plateau. © Research India Publications. Source

Chandramohan D.,Vel Technology | Rajesh S.,Jeppiaar Engineering College
Academic Journal of Manufacturing Engineering

Increased environmental awareness and consciousness throughout the world has developed an increasing interest in natural fibers and its applications in various fields. The aim of research is to make use of natural fiber abundantly available in India. An effort to utilize the advantages offered by renewable resources for the development of biocomposite materials based on biopolymers and natural fibers has been made through fabrication of Natural fiber powdered material (Sisal (Agave sisalana), Banana (Musa sepientum), and Roselle (Hibiscus sabdariffa)) reinforced polymer composite material by using bio epoxy resin. The present work focuses on the prediction of thrust force and torque of the natural fiber reinforced polymer composite materials, and the values, compared with the Artificial Neural Network. © 2014, Academic Association for Manufacturing Engineering. All rights reserved. Source

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