Sri Venkateswara College of Engineering
Sriperumbudur, India

Sri Venkateswara College of Engineering an engineering institute in Tamil Nadu, located at Pennalur, Sriperumbudur near Chennai.SVCE was founded by the Sri Venkateswara Educational and Health Trust in 1985. The Trust was founded on August 1, 1984 at the behest of Sri Jayendra Saraswathi Swamigal. The college, established in the city of Chennai by the Southern Petrochemical Industries Corporation group, a prominent petro-chemical corporation in India, is said to be among the top engineering colleges in Tamil Nadu, and a Tier-I institution among self-financing colleges.SVCE's founding objective was to implement a programme of education in engineering and allied science, to promote research, disseminate knowledge and to foster the cooperation and exchange of ideas between the academic community and industrial organizations and to develop entrepreneurship skills among students. Wikipedia.

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Latha M.S.,Sri Venkateswara College of Engineering | Venkatarama Reddy B.V.,Indian Institute of Science
Proceedings of Institution of Civil Engineers: Construction Materials | Year: 2017

Clay minerals undergo swelling and shrinkage upon wetting and drying. Cement-stabilised earth products such as soil blocks, adobe and rammed earth are therefore prone to swelling and shrinkage, leading to cracks and thereby affecting durability. This paper presents the results of investigations of the swelling and shrinkage characteristics of cement-stabilised earth products considering cement content and moulding moisture content as variables. The results show that stabilised soil products shrink after casting, swell during the curing process, shrink again during drying but swell again upon saturation. Moulding moisture content affects the shrinkage values, such that stabilised adobe shows a considerably higher shrinkage value when compared with the shrinkage values of blocks and rammed earth. © ICE Publishing: All rights reserved.

The Fourier transform infrared (FT-IR) and FT-Raman of 9-[(2-hydroxyethoxy) methyl] guanine (9-2HEMG) have been recorded in the regions 4000-100 and 4000-400 cm-1, respectively. A complete assignment and analysis of the fundamental vibrational modes of the molecule were carried out. The observed fundamental modes have been compared with the harmonic vibrational frequencies computed using DFT (B3LYP) method by employing 6-31G(d,p) and 3-21G basis sets. The vibrational studies were interpreted in terms of potential energy distribution. The first order hyperpolarizability (β0) and related properties (α, μ and Δα) of this molecular system are calculated using B3LYP/6-31G(d,p) method based on the finite-field approach. Stability of the molecule arising from hyperconjugative interactions and charge delocalization has been analyzed using natural bond orbital (NBO) analysis. The results show that electron density (ED) in the σ* and π* antibonding orbitals and second-order delocalization energies (E(2)) confirm the occurrence of intramolecular charge transfer (ICT) within the molecule. UV-vis spectrum of the compound has been recorded and electronic properties such as excitation energies, oscillator strength and wavelength are calculated by TD-DFT and CIS methods using B3LYP/6-31G (d,p) basis set. Molecular electrostatic potential (MEP) and HOMO-LUMO energy levels are also constructed. The thermodynamic properties of the title compound have been calculated at different temperatures and the results reveal that the standard heat capacities (Cp,m), standard entropies (Sm) and standard enthalpy changes (Hm) increase with rise in temperature. © 2012 Elsevier Masson SAS. All rights reserved.

The Fourier transform infrared (FT-IR) and Fourier transform Raman (FTR) spectra of 4-amino-3(4-chlorophenyl) butanoic acid were recorded in the regions 4000-400 cm -1 and 4000-100 cm -1, respectively, in the solid phase. Molecular electronic energy, geometrical structure, harmonic vibrational spectra, infrared intensities and Raman scattering activities, highest occupied molecular orbital, lowest unoccupied molecular orbital energy, energy gaps and thermodynamical properties such as zero-point vibrational energies, rotational constants, entropies and dipole moment were computed at the Hartree-Fock/6-31G(d,p) and three parameter hybrid functional Lee-Yang-Parr/6-31G(d,p) levels of theory. The vibrational studies were interpreted in terms of potential energy distribution (PED). The results were compared with experimental values with the help of scaling procedures. Most of the modes have wave numbers in the expected range and are in good agreement with computed values. The first order hyperpolarizability (β total) of this molecular system and related properties (β, μ, 〈α〉 and Δα) are calculated using HF/6-31G(d,p) and B3LYP/6-31G(d,p) methods based on the finite-field approach. Stability of the molecule arising from hyperconjugative interactions, charge delocalization and intramolecular hydrogen bond-like weak interaction has been analyzed using natural bond orbital (NBO) analysis by using B3LYP/6-31G(d,p) method. The results show that electron density (ED) in the σ and π antibonding orbitals and second-order delocalization energies E (2) confirm the occurrence of intramolecular charge transfer (ICT) within the molecule. © 2012 Elsevier Masson SAS. All rights reserved.

Rajesh Kumar B.,Jeppiaar Institute of Technology | Saravanan S.,Sri Venkateswara College of Engineering
Fuel | Year: 2016

This study attempts to achieve simultaneous reduction of smoke and NOx emissions using a combination of low EGR, retarded injection timing and diesel fuel reformulation (with low cetane number alcohols) to enable a partially premixed low temperature combustion (LTC) mode in DI diesel engine. Two higher alcohol/diesel blends, B40 (40% iso-butanol-60% diesel) and P40 (40% n-pentanol-60% diesel) blends were prepared and tested under the combination of three EGR rates (10%, 20% and 30%) and two injection timings (23° and 21° CA bTDC) at high loads and constant engine speed. The performance and emission characteristics of the engine under these conditions are investigated. Results indicate that B40 gives a longer ignition delay, higher peak pressure and higher premixed heat release rate than P40. B40 has superior EGR tolerance and better influence on NOx-smoke trade-off when compared to P40. At retarded injection timing (21° CA bTDC) and 30% EGR, B40 presented simultaneous reduction of NOx (↓ 41.7%) and smoke (↓ 90.8%) emissions with diesel-like performance while P40 presented simultaneous reduction of NOx (↓ 39.3%) and smoke (↓ 15%) emissions with a small drop in performance. It was found that B40 presented better smoke suppression characteristics than P40. Smoke emissions of both blends increased drastically beyond 30% EGR. HC emissions increased and CO emissions remained low for both blends at all EGR rates. The combination of low EGR, late injection and higher alcohol/diesel blends can achieve partially premixed LTC and reduce smoke and NOx emissions simultaneously. © 2015 Elsevier Ltd. All rights reserved.

Avinash A.,Sri Venkateswara College of Engineering | Subramaniam D.,KS Rangasamy College of Technology | Murugesan A.,KS Rangasamy College of Technology
Renewable and Sustainable Energy Reviews | Year: 2014

Recent days, underground carbon resources are dwindling at a faster rate. This triggered primary interest in development of bio-fuel as substitute to Petroleum-based fuel for alleviating world energy and economic crisis. This review explores the environmental impacts of bio-fuels on the road transportation and a large-scale impact of bio-fuel crops on food-based agricultural lands, which are now more gainfully used for churning out vehicle fuel. A global bio-diesel production is depicted with an appropriate data from 1991 to 2012. Also this article explains in detail the bio-diesel status (which includes crop type, climatic conditions, yield, oil concentration, land use/availability, and policy impacts) of 27 different countries across the world. In addition, this article extends to classify the potential bio-fuel feedstocks obtainable in each country. © 2013 Elsevier Ltd.

Alagumalai A.,Sri Venkateswara College of Engineering
Renewable and Sustainable Energy Reviews | Year: 2014

Indeed, the engine industries have seen a tremendous growth in the research and development of new-age technologies over the past ten years or so. Even though a huge database is now available on present-day engine technologies, a skillful presentation of those data is a demanding task. At this count, an endeavor has been made here to brief the pros and cons of present-day engine technologies in an elusive manner. In a nut-shell, this article provides an extensive review of the primary principles that preside over the internal combustion engines design and operation, as well as a simplifying framework of new-age engine technologies has been organized and summarized in an elegant way to contribute to this pragmatic field. © 2014 Elsevier Ltd. All rights reserved.

Alagumalai A.,Sri Venkateswara College of Engineering
Alexandria Engineering Journal | Year: 2015

Indeed, the development of alternate fuels for use in internal combustion engines has traditionally been an evolutionary process in which fuel-related problems are met and critical fuel properties are identified and their specific limits defined to resolve the problem. In this regard, this research outlines a vision of lemongrass oil combustion characteristics. In a nut-shell, the combustion phenomena of lemongrass oil were investigated at engine speed of 1500 rpm and compression ratio of 17.5 in a 4-stroke cycle compression ignition engine. Furthermore, the engine tests were conducted with partial premixed charge compression ignition-direct injection (PCCI-DI) dual fuel system to profoundly address the combustion phenomena. Analysis of cylinder pressure data and heat-release analysis of neat and premixed lemongrass oil were demonstrated in-detail and compared with conventional diesel. The experimental outcomes disclosed that successful ignition and energy release trends can be obtained from a compression ignition engine fueled with lemongrass oil. © 2015 Faculty of Engineering, Alexandria University. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license.

Nataraja S.E.,Kuvempu University | Venkatesha T.V.,Kuvempu University | Tandon H.C.,Sri Venkateswara College of Engineering
Corrosion Science | Year: 2012

The electronic parameters of tacrine were evaluated by quantum chemical method to assess its corrosion inhibition potential. Further, it was confirmed by chemical and electrochemical studies on steel in 1.0M HCl and 0.5M H 2SO 4. It was found that tacrine performed better than the quantum prediction which is attributed to the planarity of the molecule. Also, tacrine is found to be more efficient in 1.0M HCl than in 0.5M H 2SO 4, which according to potential of zero charge study, is due to acid anions Cl - and SO42- Tacrine pursued Langmuir adsorption isotherm. © 2012 Elsevier Ltd.

Muthucumaraswamy R.,Sri Venkateswara College of Engineering
Chemical Industry and Chemical Engineering Quarterly | Year: 2010

A free convective flow of a viscous incompressible flow past an infinite vertical oscillating plate with variable temperature and uniform mass diffusion is presented here, taking into account the homogeneous chemical reaction of the first-order. The plate temperature is raised linearly with respect to time, and the concentration level near the plate is raised to Cw. An exact solution to the di-mensionless governing equations has been obtained by the Laplace transform method, when the plate is oscillating harmonically in its own plane. The effects of velocity and concentration are studied for different parameters like phase angle, chemical reaction parameter, Schmidt number and time. It is observed that the velocity increases with the decrease of the phase angle ωt or a chemical reaction parameter.

Muthu S.,Sri Venkateswara College of Engineering | Uma Maheswari J.,Sri Chandrasekharendra Saraswathi Viswa Mahavidyalaya
Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy | Year: 2012

The Fourier transform infrared (FT-IR) and FT-Raman of 4-[(4-aminobenzene) sulfonyl] aniline have been recorded and analyzed. The equilibrium geometry, harmonic vibrational frequencies have been investigated with the help of HF and DFT methods with 6-31G(d,p) as basis set. A detailed interpretation of the vibrational spectra of this compound has been made on the basis of the calculated potential energy distribution (PED). The 1H and 13C nuclear magnetic resonance (NMR) chemical shifts of the molecule were calculated by GIAO method. Stability of the molecule arising from hyper conjugative interactions, charge delocalization has been analyzed using natural bond orbital (NBO) analysis. The linear polarizability (α) and the first order hyperpolarizability (β) values of the investigated molecule have been computed using DFT quantum mechanical calculations. UV-vis spectrum of the compound was recorded and electronic properties, such as HOMO and LUMO energies were also performed. Finally the calculations results were applied to simulated infrared and Raman spectra of the title compound which show good agreement with observed spectra. © 2012 Elsevier B.V. All rights reserved.

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