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Chennai, India

Nene A.A.,Maharashtra Institute of Technology Kothrud Pune | Suyambazhahan S.,Saengineering College
International Journal of Applied Engineering Research

Scheffler fixed focus concentrators are used for medium temperature applications. These concentrators are lateral sections of paraboloids and provide fixed focus away from the path of incident beam radiations throughout the year. In this paper design of a Scheffler Solar Concentrator system and it’s thermal characterisation is presented. In the second part of the papar thermal characterization of a flat plate collector is presented which was done under identical conditions as the scheffler concentrator. In case of flat plate collector efficiency is high in the low temperature region (500C to 800C) while that of point focus concentrator was found to be low and in subsequent temperature range (800C to 1500C) it increases and remains stable almost throughout the range. By super imposition of two performance curves, system of flat plate with scheffler may give a stable higher efficiency throughout the range of low to medium temperature range (500C to 1500C) © Research India Publications. Source

Anitha K.,Saengineering College
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

We consider that Rough Sets that arise in an Information System from the point of view of Topology. The main purpose of this paper is to show how well known topological concepts are closely related to Rough Sets and generalize the Rough sets in the frame work of Topological Spaces. We presented the properties of Quasi-Discrete topology and Π0-Roughsets. © Springer International Publishing Switzerland 2014. Source

Ranjani M.,Sathyabama University | Murugesan P.,Saengineering College
International Journal of Automotive Technology

The conventional controller suffers from uncertain parameters and non-linear qualities of Quasi-Z Source converter. However they are computationally inefficient extending to optimize the fuzzy controller parameters, since they exhaustively search the optimal values to optimize the objective functions. To overcome this drawback, a Particle Swarm Optimization based Fuzzy controller parameter optimization is presented in this paper. The proposed algorithm is used to find the optimal fuzzy parameters for minimizing the objective functions. The feasibility of the proposed technique has been simulated and tested. The results are bench marked with conventional fuzzy controller and Genetic Algorithm for Quasi-Z Source Converter. The results of the DC/DC Converter for several existing methods illustrate the effectiveness and robustness of the proposed algorithm. © 2015, The Korean Society of Automotive Engineers and Springer-Verlag Berlin Heidelberg. Source

Krishnan S.,Mahendra Engineering College | Sathiyasekar K.,Saengineering College
Proceedings of 2014 IEEE International Conference on Advanced Communication, Control and Computing Technologies, ICACCCT 2014

Generally two methods are followed to get the maximum power from solar photo voltaic panel. These are electrical maximum power point tracking technique (MPPT) and mechanical maximum power point tracking technique. These methods are having some complicated control and drive circuits for implementation and also it need extra power. To get better performance, higher cost and regular maintenance is needed. So it is not suitable for implementation in rural areas since regular maintenance is not possible in those areas, due to many reasons. This paper gives a solution for using solar photovoltaic system in such rural areas without more maintenance and also this system gives more power without sun tracking system. In sun tracking system, more power is required for motor drives and also need complicated algorithm. Without sun tracking, electrical MPPT technique is not only enough to get the optimization power throughout the whole day. In this paper, use modified structure solar panel and reflector. So the power output is increased and the comparison of the experimental result proves that modified panel with reflector increases the power output. © 2014 IEEE. Source

Nagarajan P.K.,Saengineering College | Vijayakumar D.,Veltech Multitech Dr Rangarajan Dr Sakunthala Engineering College | Paulson V.,Hindustan University | Chitharthan R.K.,Hindustan University | And 3 more authors.
Research Journal of Pharmaceutical, Biological and Chemical Sciences

In this study, the effect of geometry on the performance of a tetrahedral solar still was experimentally investigated on Chennai climatic conditions. In this work, a solar still of area 0.95 m2 and a glass cover in a triangular form was designed and fabricated. Environmental parameter includes solar intensity, ambient temperatures, and wind speed. Operational parameters are feed water quantity and orientation. Tests were conducted in Hindustan Institute of Technology and Science, Kelambakkam, Chennai, India. The maximum distillate output found was 4.3 lm-2day-1. The results shows that the production of fresh water was increase up to 40% compared to that of other conventional solar stills. Source

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