SSM Institute of Engineering and Technology

Dindigul, India

SSM Institute of Engineering and Technology

Dindigul, India
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Singh J.A.J.,Anna University | Saravanan M.,SSM Institute of Engineering and Technology
Applied Mathematics and Information Sciences | Year: 2017

In this research work an analytical model has been proposed, for finding new distribution passage from the suppliers to the geographically scattered dealers and to deal with the pricing problem. Since the result for this model is a non-polynomial problem, tabu search that uses various surrounding approaches has been employed to provide gratifying results. Rate fixing and request claiming are neglected and assumed in several inventory routing problem investigation. To obtain maximum interest in the supply chain network, the agreement in rate fixing have to be good since it affects the demand decision and hence the inventory and routing decisions. The suggested heuristic method was distinguished from two other existing methods of inventory routing and pricing problem and it has been found to be better than the other two methods while considering the average profit. © 2017 NSP, Natural Sciences Publishing Cor.


Valan Rajkumar M.,SSM Institute of Engineering and Technology | Manoharan P.S.,Thiagarajar College of Engineering
International Journal of Electrical Power and Energy Systems | Year: 2013

This paper presents a space vector pulse width modulation (SVPWM) control for a three-phase five-level diode clamped multilevel inverter (DCMLI) for photovoltaic (PV) systems. SVPWM algorithm uses a simple mapping to generate gate signals for the inverter. The location of the reference vector and time are easily determined. The maximum power point tracking (MPPT) is capable of extracting maximum power from PV array connected to each DC link voltage level. The MPPT algorithm is solved by fuzzy logic controller. A digital design of a generator SVPWM using hardware description language (VHDL) is proposed and implemented on a field programmable gate array (FPGA). This is done to achieve high dynamic performance with low total harmonic distortion (THD). Simulation and experimental results are given to verify the implemented SVPWM control in terms of THD. The results are compared with conventional sinusoidal pulse width modulation (SPWM) in terms of lower THD is obtained. Finally, the implementation on a FPGA is tested in a laboratory with a real prototype using a three-level three-phase voltage source inverter. Experimental results are presented to verify the effectiveness and accuracy of the proposed system. This scheme can be easily extended to an n-level inverter for PV system. © 2013 Elsevier Ltd. All rights reserved.


Selvam D.J.P.,PSNA College of Engineering and Technology | Vadivel K.,SSM Institute of Engineering and Technology
International Journal of Green Energy | Year: 2013

The aim of this research work is to investigate the possibility of using methyl esters from animal fats as an alternative fuel for diesel. Biodiesel is an alternative fuel produced from different kinds of vegetable oils and animal fats. It is an oxygenated, non-toxic, sulfur free, biodegradable, and renewable fuel which can be used in diesel engines without any significant modification. In this research work, waste pork lard methyl ester (WPLME) is obtained from inedible animal tallow, namely, waste pork lard by base-catalyzed transesterification with methanol in the presence of potassium hydroxide (KOH) as catalyst. Properties of pure diesel, pure biodiesel (B100), and its blends of 25%, 50%, and 75% by volume called B25, B50, and B75 are determined. The effects of waste pork lard methyl ester (biodiesel) addition to pure diesel on the performance, emission, and combustion characteristics of naturally aspirated, direct injection, diesel engine have been experimentally investigated at the maximum torque and constant engine speed of 1500 rpm. The experimental test results showed that the addition of WPLME to diesel slightly decreases the brake thermal efficiency of the engine and increases specific fuel consumption when compared to pure diesel. This is due to lower calorific value of WPLME. The brake thermal efficiency is decreased by 6.2% and specific fuel consumption is increased by 23.5% for pure WPLME (B100) when compared to pure diesel at full load of the engine. However for B25 biodiesel blend, the brake thermal efficiency is very close to pure diesel at full load of the engine. The significant improvement in reduction of carbon monoxide (CO), hydrocarbon (HC), oxides of nitrogen (NOx), and smoke emission is found for WPLME and its blends during higher loading conditions. For pure WPLME, CO, HC, NOx, and smoke emission are decreased by 23.1%, 31.5%, 5.15%, and 64%, respectively, when compared to pure diesel at full load of the engine. WPLME exhibited lower heat release rate and shorter ignition delay when compared to pure diesel at full load conditions. On the whole, methyl esters of waste pork lard and its blends can be used as an alternative fuel for diesel in direct injection diesel engine without any significant engine modification. © 2013 Taylor and Francis Group, LLC.


This paper presents a space vector pulse width modulation (SVPWM) control for a five-level five-phase cascaded H-bridge multilevel inverter (CHMLI) for photovoltaic (PV) systems. The maximum power point tracking (MPPT) is solved by fuzzy logic controller (FLC) and it is capable of extracting maximum power from PV array connected to each DC link voltage level. The fuzzy MPPT is integrated with the inverter so that a DC-DC converter is not needed and the output shows accurate and fast response. This is done to achieve high dynamic performance with low total harmonic distortion (THD). The simulation results are compared with sinusoidal pulse width modulation (SPWM) controlled CHMLI and diode clamped multilevel inverter (DCMLI) in terms of THD. The results prove the viability and verify the effectiveness and accuracy of the proposed system.


Valan Rajkumar M.,SSM Institute of Engineering and Technology | Manoharan P.S.,Thiagarajar College of Engineering
International Review on Modelling and Simulations | Year: 2013

This paper presents a control for a three-phase an eleven-level cascaded H-bridge inverter for photovoltaic (PV) system. The maximum power point tracking (MPPT) is capable of extracting maximum power from the PV array connected to each DC link voltage level. The MPPT algorithm is solved by fuzzy logic controller. Space vector pulse width modulation (SVPWM) algorithm uses a simple mapping to generate gate signals for the inverter. This is done to achieve high dynamic performance with low total harmonic distortion (THD). The validity of the system is verified through MATLAB/Simulink and results are compared with three-phase three-level, five-level, seven-level and nine-level cascaded H-bridge inverter for PV system in terms of THD. Finally, simulation results are presented to verify the effectiveness and accuracy of the proposed system. © 2013 Praise Worthy Prize S.r.l. - All rights reserved.


Valan Rajkumar M.,SSM Institute of Engineering and Technology | Manoharan P.S.,Thiagarajar College of Engineering
International Review on Modelling and Simulations | Year: 2013

This paper presents a control for a three-phase seven-level diode-clamped multilevel inverter (DCMLI) for grid connected photovoltaic (PV) systems which improves dc link utilization, output voltage quality and avoids the dc link capacitor voltage balancing problem experienced with standard multilevel operation. The maximum power point tracking (MPPT) is capable of extracting maximum power from PV array connected to each DC link voltage level. The MPPT algorithm is solved by fuzzy logic controller (FLC). Space vector pulse width modulation (SVPWM) algorithm uses a simple mapping to generate gate signals for the inverter. A digital proportional integral (PI) current control algorithm is used to remain the current injected into the grid sinusoidal and to achieve high dynamic performance with low total harmonic distortion (THD). The validity of the system is verified through MATLAB/Simulink and the results are compared with three-phase three-level and five-level DCMLI for PV system in terms of THD. Finally, simulation results are presented to verify the effectiveness and accuracy of the proposed system. © 2013 Praise Worthy Prize S.r.l. - All rights reserved.


Vengaian K.M.,Anna University | Britto C.D.,Anna University | Sivaraman G.,Institute for Stem Cell Biology and Regenerative Medicine | Sekar K.,Anna University | Singaravadivel S.,SSM Institute of Engineering and Technology
RSC Advances | Year: 2015

The design and development of new phenothiazine-based fluorescent probes, which display a selective fluorescence response to mercury and fluoride ions, were described. The probe is the first example that facilitates the detection of Hg2+ at nanomolar concentrations. The sensitivity of probe P-1 to Hg2+ and F- was demonstrated in living cells, and cell toxicity assays revealed that probe P-1 can be used for selective imaging of Hg2+ and F- in living cells. Moreover, the simple probe design presented here may contribute to the development of more efficient and more useful dual-mode probes. © 2015 The Royal Society of Chemistry.


John Panneer Selvam D.,P.A. College | Vadivel K.,Ssm Institute Of Engineering And Technology
Procedia Engineering | Year: 2012

This paper evaluates the possibility of using methyl esters from animal fats as an alternative fuel for diesel. Biodiesel is an alternative fuel produced from different kinds of vegetable oils and animal fats. It is an oxygenated, non-toxic, sulfur free, biodegradable and renewable fuel that can be used in diesel engines without any significant modifications. Performance and exhaust emissions of direct injection diesel engine have been experimentally investigated with methyl esters of beef tallow as neat biodiesel (B100) and its blend (B5, B25, B50 and B75) with diesel fuel. Engine performance parameters namely brake power, brake specific fuel consumption, brake thermal efficiency and exhaust emissions of CO, HC, NOx, and smoke density were determined for different loading conditions and at constant engine speed of 1500 rpm. The test result indicates that there is a slight decrease in brake thermal efficiency and increase in specific fuel consumption for all the blended fuels when compared to that of diesel fuel. The drastic reduction in carbon monoxide, unburned hydrocarbon and smoke density were recorded for all the blended fuels as well as with neat biodiesel. However, in the case of oxides of nitrogen, there is a slight increase for all the blended fuels and with neat biodiesel when compared to diesel fuel. On the whole, methyl esters of beef tallow and its blends with diesel fuel can be used as an alternative fuel for diesel in direct injection diesel engines without any significant engine modification. © 2012 Published by Elsevier Ltd.


Uthayakumar R.,Gandhigram Rural Institute | Rameswari M.,SSM Institute of Engineering and Technology
International Journal of Advanced Manufacturing Technology | Year: 2013

The success of the Japanese in the employment of just-in-time (JIT) production has received a great deal of attention in the past two decades. The underlying goal of JIT is to eliminate wastes, which can be achieved through various efforts such as shortening lead time and improving quality. The objective of this study is to extend the model of Huang et al. (Eur J Oper Res 202:473-478, 2010) by allowing deterministic variable lead time and quality improvement investment on an integrated inventory model. That is, this article develops an integrated inventory model which jointly determines the optimal order quantity, process quality, lead time, and the frequency of deliveries simultaneously. Furthermore, a solution procedure is suggested for solving the proposed model, and numerical examples are given to illustrate the benefit of coordination between vendor and buyer. © 2012 Springer-Verlag London Limited.


Nandagopal K.,SSM Institute of Engineering and Technology | Kailasanathan C.,SSM Institute of Engineering and Technology
Journal of Alloys and Compounds | Year: 2016

The Gas Tungsten Arc Welding (GTAW) is carried out between the two dissimilar materials titanium (6Al-4V) and aluminium 7075 with filler material as aluminium AA 4047. The welding is carried out for twenty five samples to enhance and validate the mechanical and metallurgical properties. This welding is carried out with three set of process parameter with five levels of values. The mechanical property such as tensile strength and hardness value is measured for work piece and the maximum value is said to 342.20 MPa and 183.10 Hv respectively. Taguchi L25 orthogonal array is used to optimize the process parameters to attain the optimal joint strength and quality of joint in the welded samples and also it is used to identify the most influential process parameter in this welding process. The three process parameter with five set of values are welding current (80-100 A), welding speed (60-80 mm/min), and arc voltage (14-18 V). ANOVA method is used to determine the percentage contribution by each process parameter. The metallurgical studies have been carried out for the weld samples such microscopic test, Scanning electron microscope and energy dispersive X-Ray test on the welded samples. The microstructural studies reveals the about the welding configuration which is capable of producing defect-free welds. Scanning electron microscope (SEM) and Energy-dispersive X-ray analysis (EDX) is carried out to measure the nature of the matrix and chemical element distribution in the weld interface. © 2016 Elsevier B.V.

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