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Nitte Meenakshi Institute of Technology

About: Nitte Meenakshi Institute of Technology is a based out in . It is known for research contribution in the topics: Ultimate tensile strength & Cloud computing. The organization has 846 authors who have published 644 publications receiving 2702 citations.


Papers
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Journal ArticleDOI
01 Jan 2019-Fuel
TL;DR: In this paper, the effect of nickel oxide nanoparticle doped biodiesel on CI engine performance at different fuel injection timing was analyzed and it was shown that accelerating the injection timing resulted in higher heat release rate and NOx levels.

97 citations

Journal ArticleDOI
TL;DR: In this article, the authors investigated and presented the detailed analysis of subsynchronous resonance arising from a VSC-based HVDC system connected close to generating units, and investigated the influence of the operating modes of the converters and effects of some important parameters, such as effective short circuit ratio and generator rating.
Abstract: The HVDC converter control can destabilize torsional modes of nearby turbogenerators. The first experience of HVDC-turbine generator torsional interaction was observed in 1977 during field tests at Square Butte. The development of power semiconductors, specially insulated-gate bipolar transistors and gate turnoff thyristors (GTOs) has led to the small power HVDC transmission based on voltage-source converters (VSCs). The self-commutated VSC-based HVDC installations have several advantages compared to conventional HVDC-based online-commutated current source converter. The main objective of this paper is to investigate and present the detailed analysis of subsynchronous resonance (SSR), arising from a VSC-based HVDC system connected close to generating units. The analysis considers different operating modes of the converters. Based on a case study, it is shown that the dc voltage control mode of VSC operation (rectifier/inverter) close to the generator units can contribute positive damping in the torsional-mode frequency range of interest. The investigations of SSR with VSC-based HVDC is carried out based on linear (damping torque and eigenvalue) analysis and nonlinear transient simulation. While the damping torque, eigenvalue analysis, and controller design are based on the D-Q model, the transient simulation considers the D-Q model and the three-phase detailed model of VSC using switching functions. The influence of the operating modes of the converters and effects of some important parameters, such as effective short circuit ratio and generator rating are investigated.

92 citations

Journal ArticleDOI
TL;DR: In this paper, the synthesis of covalent composite of graphene with Fe 3 O 4, through the formation of amide bond between chloride functionalized graphene oxide (GO) and amine containing Fe 3O 4, was described.
Abstract: The present work describes the synthesis of covalent composite of graphene with Fe 3 O 4 , through the formation of amide bond between chloride functionalized graphene oxide (GO) and amine containing Fe 3 O 4 . The synthesized chemically bonded graphene oxide- Fe 3 O 4 (GO-Fe 3 O 4 ) nanocomposite was used as an adsorbent for the removal of malachite green oxalate (MGO) and Eriochrome black T (EBT) in wastewater. The structure, morphology and magnetic properties of prepared nano composite was characterized by X Ray Diffraction (XRD), Fourier transform infrared spectroscopy (FTIR),Transmission Electron Microscope (TEM) and Vibrating Sample Magnetometer (VSM). The effect of the experimental conditions on the adsorption behavior has been investigated by varying the initial concentration, contact time,pH and temperature. The nanocomposite showed a good performance for the adsorption of MGO and EBT from aqueous solution with an adsorption capacity of 179.15 and 160.08 mg g −1 respectively. The Langmuir and Freundlich equations were used to examine the experimental isotherm data. Further it properly fitted with pseudo-second-order kinetic model.The results of this study demonstrate that GO-Fe 3 O 4 can be used as a potential alternative adsorbent for the proficient removal of dyes from aqueous solution. The GO-Fe 3 O 4 nanocomposite has been tested against Gram-positive and Gram-negative bacterial strains including Staphylococcus aureus , Bacillus subtilis, Pseudomonas aerugino and Salmonella typhimurium upon which it showed promising antimicrobial activities, thus emphasizing the fact that it can be used for dual purpose in waste water management.

81 citations

Journal ArticleDOI
TL;DR: In this paper, the effect of hygrothermal environment on the free vibration characteristics of magneto-electro-elastic (MEE) plates has been studied using finite element method.

76 citations

Journal ArticleDOI
TL;DR: In this paper, the free vibration analysis of carbon nanotube-reinforced magneto-electro-elastic (CNTMEE) rectangular and skew plates using finite element (FE) methods is presented.
Abstract: This article deals with the free vibration analysis of Carbon Nanotube-reinforced magneto-electro-elastic (CNTMEE) rectangular and skew plates using finite element (FE) methods. The plate kinematics is assumed to follow a higher-order shear deformation (HSDT) theory. The coupled equations of motion are derived with the aid of Hamilton's principle. The material properties of CNTMEE material are estimated using the rule of mixture. The various carbon nanotube (CNT) distribution fashions such as UD, FG-X, FG-O, and FG-V are employed in the present analysis. Further, the FE formulation is extended for skew CNTMEE plates to assess the effect of geometrical skewness on the natural frequencies of the plate. A special emphasize is provided on analyzing the influence of various multi-physical fields such as magnetic, electric and elastic fields on the coupling characteristics of CNTMEE plates. In this article, a detailed parametric study on the effect of boundary conditions, CNT distributions and volume fraction, aspect ratio, length-to-width ratio are considered. The research outcome of this article suggests that these parameters have a significant influence on the coupled free vibration characteristics of CNTMEE plate. It is believed that the results presented in this article may serve as a benchmark in the design and analysis of smart CNTMEE structures for sensors and actuators, energy harvesting application.

72 citations


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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202240
2021168
202095
201993
201852
201745