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Talapatra A.,MCKVIE | Datta J.,Faculty
Oriental Journal of Chemistry | Year: 2012

Mechanics of corrosion of two TRIP-assisted steels designated as A (having no Cr and Cu content) and B (having higher Ni, Cr and Cu content) heat treated at different condition to alter micro-structure phases. After two TRIP-assisted steels have been studied under the simulated condition of sea atmosphere in the laboratory scale in different level of salinity under the influence of neutral pH as well as exposing them in real sea water condition by using electrochemical test. Micro-structural characterization of Pre & post corrosive samples and quantitative phase analysis were carried out to arrive at heat treatment-structure-properties co-relation to get knowledge about mechanics of TRIP-assisted steels in different NaCl solutions.

Mitra S.K.,M.C.K.V.I.E | Banerjee J.,Jadavpur University | Chakraborty A.,Techno. India | Naskar M.K.,Jadavpur University
ACM International Conference Proceeding Series | Year: 2011

Wireless Sensors Network consists of irreplaceable nodes after being deployed with limited energy resources. The data gathering protocol needs more realistic power consumptions model to estimate the network performance for various pervasive and ubiquitous applications. In this paper we have implemented the chain based and shortest hop data gathering and routing protocols that demonstrate how realistic power model assumptions can affect the system performance in comparison with the results obtained by considering the first order radio model. We formulated a data sheet which gives details of the energy required to transmit data packets on distance basis incorporating Log Normal Shadowing Model for obtaining the received signal strength. We also justified the reason to eradicate the power levels which are unnecessary and gives rise to complications. Moreover we have observed a comparative study of the proposed method in TinyOS platform while running the simulation in TOSSIM for realistic comparison of our model. Copyright © 2011 ACM.

Singh R.K.,MCKVIE | Sanyal R.,MCKVIE | Chakrabarty G.,MCKVIE | Rana S.,MCKVIE | Chakravorty S.,MCKVIE
International Journal of Microwave and Optical Technology | Year: 2013

In this paper the analysis of circular slot and triangular slot loaded equilateral triangular microstrip antenna (ETMSA) is shown. It is observed that two shorted pin nearer to the two vertexes of ETMSA produces dual resonance frequencies with circular polarization (CP). Circular slot loading in between probe position and one shorted vertex widened the gap between two resonance frequencies. The variation of frequency gap between two resonance frequencies becomes nonlinear in character when the radius of circular slot is increases beyond 2.5mm.This nonlinearity is also demonstrated using a triangular slot of varied arm length. A comparative study is shown for different substrate permittivity. © 2013 IAMOT.

Sarkar B.K.,M.C.K.V.I.E | De A.,Bengal Engineering and Science University | Chakrabarti A.,M.C.K.V.I.E | Chakrabarti A.,Bengal Engineering and Science University
2012 1st International Conference on Power and Energy in NERIST, ICPEN 2012 - Proceedings | Year: 2012

This paper presents studies on the influence of Distributed Generation (DG) on congestion management with a proposed 'Line loading Index'. Specific grid locations are examined to study the influence of DG penetration on congestion. From competitive electricity market standpoint, DGs have great value when they reduce line congestion and improves bus voltage profile of most congested buses in particular locations and at particular times when feeders are heavily loaded. A case study on modified IEEE 14 bus test system indicates that the penetration of distributed generators can be an effective solution to reduce of power losses. The influence of DG on bus voltage profile and line losses has also been demonstrated in a modified IEEE 14 bus test system. © 2012 IEEE.

Sarkar B.K.,M.C.K.V.I.E | Chakrabarti A.,IIEST
2016 2nd International Conference on Control, Instrumentation, Energy and Communication, CIEC 2016 | Year: 2016

In the electricity pricing, the congestion management has become extremely important and it can impose unavoidable problems in electricity trading. In this paper, Gravitational Search Algorithm (GSA) based optimization is performed to address the optimal power flow (OPF) problem governed by contribution factor based ranking and nodal congestion price based ranking in order to achieve congestion relief and maximum economic benefit with desired voltage level and minimum system loss. The methodology has been tested on a typical IEEE test system. © 2016 IEEE.

Kar D.,MCKVIE | Chattopadhyay S.,GKCIET Government of India | Das Sharma K.,University of Calcutta | Sengupta S.,University of Calcutta
2016 2nd International Conference on Control, Instrumentation, Energy and Communication, CIEC 2016 | Year: 2016

This paper deals with the identification of a faulty load bus, in a multi-bus power system, monitoring the inter-harmonic and sub-synchronous inter-harmonic operating point in P-δ plane, depending on passivity model based Gauss-Seidal iteration technique. In this analysis, real power, load angle and bus voltage have been calculated and the shifting of the various operating points in the inter-harmonic and sub-synchronous inter-harmonic P-δ curves have been assessed, for different feeders. The technique has been implemented in IEEE 30 bus system. Considerable change has been seen for fundamental and sub-synchronous inter-harmonic operating points in P-δ plane. © 2016 IEEE.

Chatterjee S.,Indian National Institute of Engineering | Garg A.K.,Indian National Institute of Engineering | Chatterjee K.,MCKVIE | Kumar H.,Indian National Institute of Engineering
2015 International Conference on Energy, Power and Environment: Towards Sustainable Growth, ICEPE 2015 | Year: 2015

Electromagnetic interference is the important problem associated with the electromagnetic field. The sources of EMI may be natural sources, like atmospheric charge/discharge phenomena and extraterrestrial radiation, or may be man-made sources, like power lines, auto ignition, radio frequency interference, and radiation hazards etc. As important components, direct current (DC-DC) converters are embedded and employed in various electrical devices, thus forming main sources of EMI. Some measures, such as filters and electromagnetic shielding, have been taken to suppress EMI, but these methods have various drawbacks with respect to cost, volume, weight, and efficiency. Therefore, new theories and methodologies are desired to cope with the EMI problem. Spread Spectrum Technique or chaos control is an important method due to the continuous spectrum feature. This paper describe two methods to implement the Spread Spectrum Technique in a Boost Converter. An analogue chaotic carrier is designed to be embedded in a chaotic pulse width modulation (PWM) boost converter, and to be used for reducing electromagnetic interference (EMI) in dc-dc converters. Simulations study is conducted to illustrate the effectiveness of the proposed analogue chaotic PWM in reducing EMI. Randomized carrier frequency modulation with fixed duty ratio (RCFMFD) Spread Spectrum scheme for pulse width modulation (PWM) boost converter, is implemented using Field Programmable Gate Array (FPGA) technology. The simulations and experimental verification is done, so as to prove the effectiveness of Spread Spectrum scheme in reducing the electromagnetic interference (EMI) in dc-dc converters. © 2015 IEEE.

Banerjee J.,Jadavpur University | Mitra S.K.,M.C.K.V.I.E | Ghosh P.,Jadavpur University | Naskar M.K.,Jadavpur University
Communications in Computer and Information Science | Year: 2011

Wireless Sensor Network (WSN) is constrained by limited available energy for data communication. Utilization of energy and enhancing network lifetime is a challenging task for the next generation wireless sensor network. In this paper we have designed an algorithm that performs the routing with low energy consumption. We have experimentally optimized the number of clusters that should be formed for escalating the lifetime of the network with provisions made to include equal number of nodes in each cluster. Our analysis and simulation results show that with realistic radio model we have achieved better load balance than several existing protocols, like LBEERA, HDS, SHORT, PEGASIS, LEACH and BINARY. A suitable node deployment strategy was adopted for ensuring wireless connectivity between each node. Moreover we have made simulations in NS-2 which supports our propositions to a greater extend. © 2011 Springer-Verlag.

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