National Institute of Technology Tiruchirappalli

www.nitt.edu
Tiruchirappalli, India

The National Institute of Technology, Tiruchirappalli , also referred to as National Institute of Technology, Trichy, formerly Regional Engineering College, Tiruchirappalli, is a public engineering and technology university located 20 km near the city of Tiruchirappalli in Tamil Nadu, India. The institute was founded in 1964 to cater to the country's growing need for technological manpower. It is one of the 30 National Institutes of Technology in India and is declared as an Institute of National Importance by Government of India under NIT Act. About 3,500 students are enrolled in undergraduate and postgraduate programs at the institute. The institute is located on an 800-acre campus on the outskirts of Tiruchirappalli. Wikipedia.

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Nithya C.,National Institute of Technology Tiruchirappalli
ChemPlusChem | Year: 2015

Abstract The high capacity, excellent cyclability, and good rate capability of reduced graphene oxide (rGO) anchored with Bi2O3 nanocomposite for sodium-ion batteries is reported. A simple reduction method is adapted to deposit spherical Bi2O3 nanoparticles on the surface of rGO sheets. The surfactant cetyltrimethylammonium bromide (CTAB) plays a major role in controlling the morphology of the Bi2O3 nanoparticles. This Bi2O3@rGO nanocomposite has the advantages of high reversible capacity with a capacity retention (at high rate) of 70.2 % after 200 cycles at a current density of 350 mA g-1. This superior performance can be attributed to the fact that rGO sheets hamper the volume expansion of Bi2O3 nanoparticles and result in faster diffusion of Na+ ions (diffusion coefficient: 5.12×10-8 cm2s-1) and smaller internal resistance (84.17 Ω) compared with pristine Bi2O3 nanoparticles. The results suggest that anchoring rGO sheets with metal oxides is one of the simplest ways to enhance the electrochemical performance of sodium-ion batteries. Copyright © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


Muthukkumaran K.,National Institute of Technology Tiruchirappalli
International Journal of Geomechanics | Year: 2014

An extensive program of laboratory model tests was undertaken to study the effect of slope and loading direction on laterally loaded piles in cohesionless soil. The paper includes studies of the effect of distance from the crest of the slope (both slope side and embankment side), soil properties, and loading direction (both forward in the direction of the slope and reverse loading). The pile lateral capacity in sloping ground was compared with that in horizontal ground. From the experimental investigation, it is observed that when piles installed in sloping ground undergo forward loading, lateral capacities of the piles are almost reached at 8% of the pile diameter in loose-to-medium dense soil and 16% of the pile diameter in dense soil. If the pile is placed >15 times the pile diameter away from the slope crest within the embankment, the influence of slope in the lateral-load capacity is almost negligible under both forward and reverse lateral load. © 2014 American Society of Civil Engineers.


Kannabiran G.,National Institute of Technology Tiruchirappalli
Journal of Enterprise Information Management | Year: 2012

Purpose: The auto ancillary industry in India has witnessed huge capacity expansion and modernization due to entry of foreign automobile manufacturers in the post liberalization era. In spite of potential benefits, the adoption of advanced IT among small to medium-sized enterprises (SMEs) is low in India. There are several technological, economical and organizational factors that enable or inhibit the adoption of advanced IT. The primary objective of this research is to identify and evaluate the key factors that are enabling or inhibiting adoption of advanced IT in the Indian auto ancillary SMEs. Design/methodology/approach: In order to identify and evaluate the enablers and inhibitors, a detailed survey was carried out among registered Indian auto ancillary SMEs during 2010. Out of 584 registered SMEs, 110 owners/top managers of the SMEs responded to the survey. The data collected through the survey were analyzed using confirmatory factor analysis and multivariate regression to evaluate the influence of enablers and inhibitors of advanced IT adoption by the auto ancillary SMEs. Findings: The survey findings show that the level of advanced IT adoption in auto ancillaries is low with only 17 per cent of SMEs having adopted technologies. This study reveals that "perceived benefits" and "perceived competitive pressure" enable advanced IT adoption among auto ancillary SMEs in India. However, "lack of financial capacity", "small scale operation and "lack of in-house IT manpower" inhibit the adoption. It is also found that enablers such as "changes in business environment", "IT experience of CEO/owner" and "increased information linkage with OEM/customer" do not have any influence on the adoption. Similarly in the case of inhibitors, "lack of IT Infrastructure" and "lack of information security" do not have significant association with IT adoption. Despite the positive external IT environment and recognition of benefits, advanced IT adoption by SMEs in the auto ancillaries is limited by lack of financial capabilities and in-house IT human resources. Originality/value: This is one of the early papers that brings out the enablers and inhibitors of advanced IT adoption by auto ancillaries in India. Further, these factors are systematically analyzed to assess the relative importance with reference to the SMEs. The findings contribute to theory of IT adoption among SMEs, but more importantly to the SMEs in the auto ancillary, and policy makers and IT service providers who are likely to facilitate increased adoption. © Emerald Group Publishing Limited.


Nidheesh P.V.,National Institute of Technology Tiruchirappalli | Gandhimathi R.,National Institute of Technology Tiruchirappalli
Desalination | Year: 2012

Organic compound, especially aromatic compound is the main pollutant in industrial effluent. Conventional wastewater treatment processes are inefficient for the removal of these types of toxic and hazardous pollutants from wastewater. Electro Fenton is one of the powerful and environmentally friendly emerging technologies for the remediation of wastewaters containing organic, especially aromatic compounds. This paper reviews the fundamentals and recent developments in electro Fenton process. Electro Fenton process utilizes different electrolytic reactors such as bubble reactor, filter press reactor, divided double-electrode electrochemical cell, divided three-electrode electrochemical cell and double compartment cell. Different cathodes as working electrode and anodes as counter electrode used in this process are analyzed. The effects of various operating parameters and their optimum ranges for maximum pollutant removal and mineralization are reviewed. Also various pollutants removed by this process are evaluated. Quick removal and mineralization of pollutants and their intermediate reaction products were reported. © 2012.


Chandrasekaran K.,National Institute of Technology Tiruchirappalli | Simon S.P.,National Institute of Technology Tiruchirappalli
IEEE Transactions on Power Systems | Year: 2013

Restructuring of power system stresses the need for economic and reliable generation of power. Therefore generating units should be committed considering fuel cost and reliability level of the system. This necessitates the need for multi-objectives to be met in a unit commitment problem (UCP). Since the above objectives are conflicting in nature, a novel methodology employing optimal deviation based firefly algorithm tuned fuzzy membership function is applied to multi-objective unit commitment problem (MOUCP). The ON/OFF status of the generating units is obtained by binary coded FF whereas the sub-problem economic dispatch (ED) is obtained by real coded FF. Here the conflicting functions are formulated as a single objective function using fuzzy weighted optimal deviation. The fuzzy membership design variables are tuned using real coded FF; thereby the requirement of expertise for setting these variables are eliminated. The proposed methodology is validated on 100-unit system, IEEE RTS 24-bus system, IEEE 118-bus system and a practical Taiwan Power (Taipower) 38-unit system over a 24-h period. Effective strategy on scheduling spinning reserve is demonstrated by comparing its performance with other methods reported in the literature. © 2012 IEEE.


Jeya Girubha R.,National Institute of Technology Tiruchirappalli | Vinodh S.,National Institute of Technology Tiruchirappalli
Materials and Design | Year: 2012

Material selection is a complex process, since the process includes many criteria, determination of criteria weight and the most important factor is that the selection of appropriate criterion. The last factor indicates that the criterion must be selected in a manner, such that the selection based upon the known material parameters and the requirements of the application. Therefore the material selection can be done using MCDM (Multi Criterion Decision Making) methods. Since the inputs provided by the decision maker in linguistic manner, there is a possible chance of getting incomplete problems. So in order to overcome the problem, the inputs could be provided as fuzzy numbers. Since fuzzy set represents the uncertainty in human perceptions. In this paper, VIKOR (VlseKriterijumska Optimizacija I Kompromisno Resenje in Serbian, means Multicriteria Optimisation and Compromise Solution) has been used a MCDM tool for the selection of alternate material for instrument panel used in electric car and in order to evaluate this selection process in fuzzy environment, fuzzy based VIKOR is used. In addition to the fuzzy VIKOR method, the environmental impacts are also considered and compared for the four materials. The results achieved in both the assessment, showed that Polypropylene could be an alternate material for the instrument panel. The objective of this study is to develop a rational method to select the best material for an application based upon known material parameters and the requirements of the application. © 2012 Elsevier Ltd.


Chandrasekaran K.,National Institute of Technology Tiruchirappalli | Simon S.P.,National Institute of Technology Tiruchirappalli
Swarm and Evolutionary Computation | Year: 2012

This article proposes a hybrid cuckoo search algorithm (CSA) integrated with fuzzy system for solving multi-objective unit commitment problem (MOUCP). The power system stresses the need for economic, non-polluting and reliable operation. Hence three conflicting functions such as fuel cost, emission and reliability level of the system are considered. CSA mimics the breeding behavior of cuckoos, where each individual searches the most suitable nest to lay an egg (compromise solution) in order to maximize the egg's survival rate and achieve the best habitat society. Fuzzy set theory is used to create the fuzzy membership search domain where it consists of all possible compromise solutions. CSA searches the best compromise solution within the fuzzy search domain simultaneously tuning the fuzzy design boundary variables. Tuning of fuzzy design variables eliminate the requirement of expertise needed for setting these variables. On solving MOUCP, the proposed binary coded CSA finds the ON/OFF status of the generating units while the real coded CSA solves economic dispatch problem (EDP) and also tunes the fuzzy design boundary variables. The proposed methodology is tested and validated for both the single and multi-objective optimization problems. The effectiveness of the proposed technique is demonstrated on 6, 10, 26 and 40 unit test systems by comparing its performance with other methods reported in the literature. © 2012 Elsevier B.V. All rights reserved.


Vinodh S.,National Institute of Technology Tiruchirappalli
International Journal of Production Research | Year: 2011

The manufacturing organisations are witnessing a transformation in the manufacturing paradigm due to increasing competition. Agile manufacturing (AM) is a contemporary manufacturing paradigm which enables the organisations to survive in this competitive scenario. Design engineering is a vital technological enabler of AM. The research on axiomatic design in the field of AM is found to be feeble. In this context, this paper reports an axiomatic model of agile production system design using process variables. A hierarchical structure has been developed to model the design process of an agile production system composed of functional requirements, design parameters and process variables. In the theory of axiomatic design, process variables are created by mapping the design parameters in the process domain. This article serves as an efficient guideline for the design process to clarify the tools, methods and resources of designing agile production system of Indian electronic switches manufacturing organisation. © 2011 Taylor & Francis.


Naveenraj S.,National Institute of Technology Tiruchirappalli | Anandan S.,National Institute of Technology Tiruchirappalli
Journal of Photochemistry and Photobiology C: Photochemistry Reviews | Year: 2013

The interactions of human and bovine serum albumins (HSA and BSA) with various drugs and nanomaterials receive great attention in the recent years owing to their significant impact in the biomedical field. Although there are various techniques available for studying such interactions, fluorescence spectroscopy is the most appealing one due to its high sensitivity and straightforwardness. Detailed information about the interactions of drugs and nanomaterials with serum can be deducted from a mass of information accumulated by the fluorescence quenching studies. The present review emphasizes the interaction of various nanomaterials, antibiotics, anticancer drugs, anti-inflammatory agents, dyes, flavonoids, and certain noxious materials with HSA and BSA. In particular, we focus on the interactions of serum albumin with nanomaterials having different size and stabilizing agents with various receptors. This review helps in understanding the structural features of drugs/nanomaterials crucial for not only their affinity for serum albumin but also their optimum pharmacological activities. © 2012 Elsevier B.V.


Vinodh S.,National Institute of Technology Tiruchirappalli
Journal of Cleaner Production | Year: 2010

Increasing competition has been forcing the modern manufacturing organisations to adopt advanced manufacturing paradigms. Agile Manufacturing (AM) is an advanced manufacturing paradigm that enables an organisation to survive in the competitive business environment. Agility is the performance measure of AM practices. Simultaneously, modern business organisations are forced to evolve environmental friendly products. Sustainability is regarded as an important concept for survival by the modern organisations. In this context, agility and sustainability are regarded as performance measures for contemporary organisations. This paper reports a case study which has been carried out in an Indian rotary switches manufacturing organisation. The candidate product is the knob of rotary switch. Initially Computer Aided Design (CAD) has been used to digitalise the baseline model. Keeping the baseline model as reference, five new knob models have been evolved. Then the sustainability analysis has been carried out to determine the environmental impact of the knob models. The analysis results indicated that the proposed knob models possess minimal environmental impact. The conduct of case study has lead to an inference that there is a significant improvement of agility and sustainability in the design and development of knob of rotary switch. © 2010 Elsevier Ltd.

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