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Patil S.S.,Rajarambapu Institute of Technology | Thorat S.A.,Rajarambapu Institute of Technology
Proceedings - 2016 2nd International Conference on Cognitive Computing and Information Processing, CCIP 2016 | Year: 2016

Grape cultivation has social and economic importance in India. In India, Maharashtra ranks first in grapes production. Over the last few years the quality of grapes has degraded because of many reasons. One of the important causes is diseases on grapes. To prevent diseases farmers spray huge amount of pesticides, which result in increasing the cost of production. Also farmers are unable to identify the diseases manually. The diseases are identified only after the infection, but its takes up a lot of time and have adverse effects on vineyard. The proposed work is to develop a monitoring system which will identify the chances of grape diseases in its early stages by using Hidden Markov Model provides alerts via SMS to the farmer and the expert. The system includes temperature, relative humidity, moisture, leaf wetness sensor and Zig-Bee for wireless data transmission. © 2016 IEEE.

Jadhav H.T.,Sardar Vallabhbhai National Institute of Technology, Surat | Bamane P.D.,Rajarambapu Institute of Technology
International Journal of Electrical Power and Energy Systems | Year: 2016

Resistance is an important element in power flow calculation. The accuracy of active power loss calculation depends upon resistance of that branch. Although resistance is a function of temperature rise for pure conductor, conventional power studies neglect temperature effect totally. To calculate exact losses in branch, it is necessary to consider temperature rise in calculation. In a deregulated electricity structure, optimal power flow has been an important tool to assess the economic operation of electricity market. So, the accuracy of optimal power flow is greatly influenced by temperature effect. This paper presents implementation of an efficient gbest-guided artificial bee colony algorithm to solve optimal power flow as well as temperature dependent optimal power flow. This method is tested on IEEE 30 bus system and IEEE 57 bus test system for statistical analysis of gbest-guided artificial bee colony algorithm. This paper also presents the temperature dependent optimal power flow on IEEE 30 bus test system. Effect of temperature rise is also analysed on IEEE 30 bus system, 2383 bus winter peak Polish system and 2736 bus summer peak Polish system. © 2015 Elsevier Ltd.

Patil U.T.,Rajarambapu Institute of Technology | Thorat A.R.,Rajarambapu Institute of Technology
2013 International Conference on Energy Efficient Technologies for Sustainability, ICEETS 2013 | Year: 2013

Power quality is one of the major concerns in the present power system environment. The situations like-voltage dip/sag, swells, harmonic content etc and so on, and its major effect on greatly susceptible loads are well known. To tackle these situations, custom power apparatuses are utilized. Dynamic Voltage Restorer (DVR) is a modified power apparatus that is utilized to enhance voltage stability i.e. to minimize the power quality problems in electrical power system network. The important parts of the DVR comprise of voltage source inverter (VSI), booster transformers, filter and a dc energy source. The principle of the DVR is utilized to inject the voltage in series and in synchronism with the standard voltages with a goal to compensate voltage influences. There are various control techniques used for the operation of dynamic voltage restorer. This paper presents the hysteresis voltage control technique for generation of switching pulses for inverter of dynamic voltage restorer. The control technique based on voltage reference signals, and the proposed system is designed in MATLAB software, results shows that the how dynamic voltage restorer is useful for power quality improvement in distribution system. © 2013 IEEE.

Aga J.M.,Rajarambapu Institute of Technology | Jadhav H.T.,Rajarambapu Institute of Technology
Proceedings of 2013 International Conference on Power, Energy and Control, ICPEC 2013 | Year: 2013

The penetration level of wind power plant has increased now a day. Doubly-Fed Induction Generators (DFIG) based wind turbine system has become a more popular because of their advantages over the fixed speed wind turbine. To ensure the power system stabilitya special grid codes provided by several utility to wind farm producers. All these grid code requirements, specifically fault ride through (FRT) are a challenge for wind turbine producers. This paper presents a technical review of improvement of fault ride-through capability of DFIG connected wind turbine systems. © 2013 IEEE.

More K.K.,Rajarambapu Institute of Technology | Jadhav H.T.,Rajarambapu Institute of Technology
Proceedings of 2013 International Conference on Power, Energy and Control, ICPEC 2013 | Year: 2013

The Phasor Measurement Unit (PMU) is very important tool for monitoring and control of the power system. PMUs give real time, synchronized measurements of voltages at the buses and also current phase values which are incident to those buses where these PMUs are located. It is unnecessary and impossible to place PMU at each bus to estimate the states because the PMUs and communication facilities are very costly. It is necessary to determine the minimum number of PMUs for entire observability of the power network. The optimal placement of PMUs (OPP) problem solved by various techniques such as mathematical programming, metaheuristic techniques. A literature review on these technologies to solve OPP problem is proposed in this paper. © 2013 IEEE.

Mulik P.B.,Rajarambapu Institute of Technology
4th IEEE Sponsored International Conference on Computation of Power, Energy, Information and Communication, ICCPEIC 2015 | Year: 2015

This paper proposes new method based on evolutionary algorithm for optimal trajectory planning of robot manipulator (PUMA 560). The intelligent method is elitist non dominated sorting based genetic algorithm (NSGA-II). This method is superior as it considers multiple criterion to be optimised simultaneously. The multicriterion cost function has to minimize with defined constraints. The problem has 5 objective functions, 32 constraints and 252 variables. Pareto optimal is set of compromise solutions instead of single optimal solution. Pareto optimal fronts are evaluated by the solution spread measure and ratio of non dominated individuals. The B-spline function is used to define robot trajectories. © 2015 IEEE.

Kadam S.S.,College of Engineering, Pune | Joshi S.G.,Rajarambapu Institute of Technology
Applied Mechanics and Materials | Year: 2012

In this paper thirty nine factors responsible for the dynamic loosening, under soft foot condition, of a bolted joint have been enumerated and its Interpretive Structural Modeling (ISM) has been developed. In this systematic approach of ISM, first of all a concept model of the problem has been formulated, followed by the formulations of Structural Self Interaction Matrix (SSIM) and Reachability Matrix. The level of significance of each factor has been derived by level partitioning. The initial digraph is prepared on the basis of the canonical matrix. ISM based model is finalized after checking for conceptual inconsistency and necessary modifications. The MICMAC analysis is also conducted with the help of driving and dependence diagram, which states that factor 31 (vibration loosening) and 36 (additional stresses in the bolt) are the major threat for joint integrity and needs more attention. © (2012) Trans Tech Publications, Switzerland.

Telsang T.M.,Rajarambapu Institute of Technology | Kakade A.B.,Rajarambapu Institute of Technology
Microwave and Optical Technology Letters | Year: 2014

A compact ultrawideband microstrip patch antenna fed by a coplanar waveguide (CPW) and a microstrip line is presented in this article. The performance between these two feeds on the return loss bandwidth is compared. The radiation pattern stability of the antenna is also investigated. The measured impedance bandwidth of CPW fed and microstrip line fed patch antennas is from 3 to 18 GHz and 2 to 13 GHz (146.67%), respectively. © 2014 Wiley Periodicals, Inc.

Kakade A.B.,Rajarambapu Institute of Technology | Ghosh B.,Indian Institute of Technology Kharagpur
IEEE Transactions on Antennas and Propagation | Year: 2011

In this paper, a coax-probe excited multilayer dielectric resonator antenna (DRA) structure is rigorously analyzed from the modal perspective. The full-wave Green's function approach is presented for the analysis of such multilayer structures with an arbitrary number of layers with greatly reduced computational overhead. Additional reduction in computation time is demonstrated for a centered probe. Also, the modes of the multilayer DRA can be identified from the analysis, which can be used to explain the broadband nature of the coupling. The layer permittivities are optimized for broadband operation of the coax-fed DRA. The bandwidth enhancement for a centered and offset probe is seen to be due to a combination of several DRA modes and the probe resonance. Frequency tuning of the antenna structure is also demonstrated by exciting the antenna at a higher order mode, maintaining the broadband characteristics. The radiation characteristics of the antenna are also investigated. © 2011 IEEE.

Malvade A.V.,Rajarambapu Institute of Technology | Satpute S.T.,Rajarambapu Institute of Technology
Procedia Engineering | Year: 2013

Fossil fuels are commonly used fuel for automobiles. The reserve stock and exhaust gas emission of fossil fuel cause a serious problem. So there is a need of an alternative ecofriendly fuel. Biodiesel is a renewable fuel produced from plant and animal material by esterification. Esterification is an acid catalyzed reaction that converts free fatty acid (FFA) of oil into triglycerides. Transesterification is base catalyzed reaction they converts triglycerides into mono alkyl esters. The main problem of biodiesel is its high cost which could be reduced by use of less expensive feed stock. Palm fatty acid distillate (PFAD) is a waste from extraction of palm oil. PFAD is used for production of biodiesel. The calorific value of PFAD biodiesel is 38600 MJ/kg while density is 879 kg/m3, flash point is 147°C, viscosity is 3.96 mm 2/s and cetane number is 49. A single cylinder, 4 stroke, water cooled diesel engine of Kirlosker Oil Engine is used for evaluating performance of PFAD biodiesel blends and diesel. The engine performance for various PFAD biodiesel blends at various loads are comparatively equal to that of diesel fuel. Brake power of various blends is comparatively equal to brake power of diesel. Brake Thermal Efficiency increases comparatively for 50% PFAD blends. Specific Fuel Consumption for PFAD blends is slightly higher than diesel. Indicated power of PFAD blends is less than indicated power of diesel. © 2013 The Authors. Published by Elsevier Ltd.

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