Wednesday, May 24, 2017

New M.Tech. Thesis Submitted from Electrical

VOLTAGE PROFILE IMPROVEMENT AND POWER LOSS REDUCTION IN POWER DISTRIBUTION SYSTEMS USING PARTICLE SWARM OPTIMIZATION by Mandeep Kaur 

Abstract : The power distribution systems are becoming bulky day by day due to the increase in electricity demand; therefore, it becomes necessary to maintain the power distribution systems so that they can meet the customer demand. Power losses are the major concern in the electrical power system. Uptill now, many techniques are available for the reduction of these losses but capacitors are considered as a simple and most powerful device. If capacitor is utilized in a wise way, we may obtain maximum benefits like voltage profile improvement, power loss reduction, the annual cost reduction due to losses and enhancement in the net annual savings. In this thesis work, an artificial intelligence technique known as Particle Swarm Optimization have been used for the allocation of capacitors. The most sensitive buses which can lead to maximum benefits are selected on the basis of their loss sensitivity factors and cost function. After the selection of these buses, capacitors are placed on them. These two methodologies are performed on the basis of an algorithm which consists of a sequence of steps and henceforth, it is tested on IEEE 39-bus system. The algorithm is implemented in the form of MATLAB coding which results into improved voltage profile and efficient loss reduction. Particle swarm optimization is an iterative method, hence it will goes through effective number of iterations in order to get the global best result.

Tuesday, May 23, 2017

New M.Tech. Thesis Submitted from Electronics

DESIGN AND OPTIMIZATION OF RADAR ABSORBING MATERIAL WITH THE HELP OF RESISTOR FSS by Ravinderjit Kaur

Abstract
RADAR absorption materials (RAMs) and coatings have been widely used in stealth technology since World War II. Stealth refers to the ability to evade from the detection from any kind of radar detection. Radar absorbing materials have found a significant importance in today’s stealthy technologies to make the combat aircrafts or drones electromagnetically invisible to the radar detectors. So a combat aircraft can be useful in the war field only if it is not detectable by sensors and moreover the capacity load it can hold to carry maximum armed forces and ammunitions. Therefore, numerous research works have been done to pursue a high-performance absorber to solve the electromagnetic pollution problem. Earlier different types of paints were used to coat the surfaces of the aircrafts, also known as black body paints. But paint not only used to make the aircraft heavier but would also incur unnecessary costs. With the advancement it has been invented that instead of painting the surface, the surface itself be made up of radar absorbing material. Various designs were also proposed in this regard but of hardly any use, as they also were not able to reduce detection to great extent. Then with further advancement it has been invented that the frequency selective surface embedded in the layers of radar absorbing material has better absorption than the normal ones. But
till now the proposed different geometric structures or the use of lumped elements in the material so far has one or the other limitation. So this work has been proposed to find the best trade off between the maximum absorption bandwidth and minimum material thickness with the use of particle swarm optimization and also compares the results of with and without lumped elements. The proposed comparison and results of optimization are in good agreement.

New M.Tech. Thesis Submitted from Industrial

IMPLEMENTATION OF SAFETY MANAGEMENT IN INDIAN INDUSTRIES : A CASE STUDY) by Sushil Kumar 

Abstract
The purpose of the study was to reduce or eliminate the accidents during production processes in “Shivalik Bimetal Controls Limited”. Which was on higher side and wasting lot of money of the organization, In general observation it is noticed that the company has been facing so many issues in their production (like; accidents, absenteeism, low production rate, improper handling) due to the lack of proper safety measures. The study uses Root Cause Problem Solving (RCPS) technique and starts with the collection phase, followed by the analysis phase and ends with the solution phase. Supporting data are presented using a Pareto Chart to highlight accidents in order to be more focused for elimination or reduction. The Q.C. tool is performed to analyse the cause of accidents, to express and implement corrective actions. The application of the Q.C tools in a manufacturing industry (Shivalik Bimetal Controls Limited) provides a fact-based and organised approach to the problem identification. Corrective action had enhanced the production and reduced the accidents from 35% to 12.6% which was the 70% of the total accidents and it helped to increase the productivity of the organization. The study was also proved that industrial safety training with sound understanding of manufacturing coupled with possible solutions using safety management tools. This corrective action was not only able to reduce accidents, but also upgraded the product quality.

Tuesday, May 16, 2017

New M.Tech. Thesis Submitted from Civil

ANALYSIS OF LIQUEFACTION POTENTIAL SOIL USING SPT DATA by Arveen Kaur 

Abstract
Liquefaction is the result of undrained failure of saturated, highly contractive (loose sand). When this phenomenon occurs, there are drastic changes to structures which results in loss of life and property. The factors which affect the liquefaction potential are relative density, depth of water table, grain size distribution of soil, confining pressure, peak pulsating stress, amplitude and frequency of shaking, distance from earthquake. The liquefaction hazards are commonly associated with saturated or silty sands having low plasticity and density. In the present study, the SPT data is collected from various resources majorly from Testing & Consultancy cell, Civil engineering department, GNDEC, Ludhiana. Out of the available sites, total 80 Sites borehole data was taken and was selected for further work. Then this selected data was analysed using Liqit Software and same data is calculated on spreadsheets by NCEER Youd et. al methods. Also, the comparison has been made on the basis of factor of safety from Liqit and spreadsheet values. The comparison was represented by graphs for each site. The major work of the thesis was to plot the liquefaction map on GRASS GIS software. The maps were generated depth wise on GRASS GIS software. This gives an edge over one single value of depth. Hence, consecutive depths were chosen to give a broad view of the work done. The detailed analysis of how to generate the Graph is also mentioned and given in Annexures. Basic overview of Liqit software is also given in annexure. This thesis will cover as much region as possible for each district in Punjab. Some sites data was discarded due to their very close proximity with other sites

New M.Tech. Thesis Submitted from Industrial

APPLICATION OF VALUE ENGINEERING: A CASE STUDY OF COUPLER FOR BEDDED VALVES by Kulpreet Singh 

Abstract
It is becoming essential to develop new alternatives with lesser cost,but giving same or better performance in current competitive environment. Every industry strives hard to meet the requirements of customers and to reduce production cost. Value engineering is a scientific tool for improving value potential, reducing cost while meeting the functional utility. In present work Value Engineering Job Plan (VEJP) was used to reduce the qualitative cost of manufacturing of coupler. The study was carried out at Sir Valves, Jalandhar. The poor value areas were highlighted and worked upon. Changes in design were proposed leading to 4.18 per cent of savings.

Tuesday, April 25, 2017

New M.Tech. Thesis Submitted from Production

STUDY THE EFFECT OF DIFFERENT WIRE ELECTRODES ON MACHINING CHARACTERISTICS OF INCONEL825 WITH WEDM By Maninderpreet Singh

Abstract
Scientists across the world have developed many super alloys, which are of high strength and heat resistant for use in industries aerospace and defence. Ni-based alloys are resistive to degradation in oxidizing and eroding environment, have high strength even at high temperatures. Many high performance wires have been developed over the time to enhance the performance of WEDM machining process. The aim of our study was to investigate the еffеct of process parameters on the performance characteristics of WЕDM for Nickеl-basеd alloy material, with brass wire and diffusion annealed wire. The specimen was prepared and preliminary еxpеrimеnts were conducted, to identify the machining parameters and decide the ranges and levels of each machining parameter. Then main experiment was conducted by machining the specimens using different wire еlеctrodеs and record the machining performances. Detailed еxpеrimеntation was based on Taguchi design of еxpеrimеnts to analyse the impact on various responses by machining parameters. The results of the experimentation were analysed using SEM and ANOVA analysis to show the significant variations in response parameters with different wire electrodes. The experimental results revealed that wire wear and cutting rate are maximum with diffusion annealed. The surface roughness produced by plain brass
wire is higher than the surface roughness produced by diffusion annealed wire

Thursday, April 6, 2017

New M.Tech. Thesis Submitted from Production

ANALYTICAL MODELING OF INPUT ENERGY CONSUMPTION,SURFACE ROUGHNESS AND MATERIAL REMOVAL RATE IN BALL END MILLING OPERATION by Aashish Dhiman

Abstract
Ball end milling operation is commonly used for producing flat and contoured surfaces of manufacturing dies and moulds etc. due to its high quality and productivity nature. It is very sensitive
manufacturing operation because of complex tool geometry and involvement of large number of process parameters. The energy consumption, surface quality and Material Removal Rate (MRR) play a vital role for any manufacturing process to be sustainable. The present work presents an analytical approach to predict energy consumption, surface roughness and MRR during ball end milling operation. The modeling procedure begins with analytical prediction of uncut and cut chip geometry followed by the evaluation of the associated angles and further determination of the cutting forces. These cutting forces, cutting speed and milling time were used to calculate the energy consumption during the operation. In analytical model of surface roughness, the cusp height was calculated from topography of the surface produced by the ball end mill tool geometry which was further used to calculate the theoretical average surface roughness (��). The analytical models of MRR were developed from geometry and the impressions left by the ball end mill on the work surface. Experiments were performed using 6 mm diameter ball end mill on CNC Vertical Milling Center on EN8 material work piece for different speeds (1000, 1500, 2000 RPM), different feed rates (400, 600, 800 mm/min) and different depth of cuts (0.10, 0.15, 0.25 mm) to validate the proposed analytical models. The radial depth of cut was kept 1 mm during all experiments. The proposed analytical model of energy consumption shows comparatively higher error than the error found by calculating energy consumption based upon cutting forces model available in literature (Sonawane and Joshi, 2010) for EN8 material whereas it shows comparatively less error for Inconel 718 material. An error of 94.044 % to 122.793 % and -52.593 % to -28.705 % had been observed in predicting surface roughness and MRR respectively by the proposed analytical models. The results predicted by the proposed analytical models of surface roughness and MRR matches exactly with the expected results of surface roughness and MRR presented in Table 1 in the research paper by Quintana et al. (2010) but the final equations for these models by them not give satisfactory results. The effect of the various machining variables on the different input and output parameters predicted by the proposed models comes out to be of the same trend as observed in the literature.

Friday, March 3, 2017

New M.Tech. Thesis Submitted from Civil

PERFORMANCE EVALUATION OF RO PLANTS IN MALWA REGION by Hardeep Singh 

Abstract
There has been a continuous decrease in the availability of fresh water resources for daily routine purposes nowadays and in the recent past especially in developing countries. Though the urban areas have well developed facilities for fresh water availability but the major issue is in the rural areas which are deprived of both centralized and decentralized treatment facilities. One such region is the Malwa region of Punjab state where high water contamination problems have been incurred. These regions were equipped with high RO plants by the government of Punjab in 25 villages with one RO system for each village in order to provide proper drinking water supplies for the inhabitants. But the regions were still continuously faced with health problems. So this study was conducted in order to evaluate the performance of RO systems in five such villages by collecting water samples from the RO inlet, pure and rejected RO waste and also determining their effect on the surrounding ground water by collecting samples along the RO site periphery at distances of 200-800 feet at an interval of 200 feet each which has a bore hole depth of 40-60 feet. Further this study assessed the power consumption and running costs of these RO systems and hence evaluating their overall performance efficiency in terms of treatment efficiency, impact on the surrounding ground water resources and their power consumption and hence running costs. The results showed that the TDS and sulphate values almost doubled in each case of RO reject as compared to RO inlet which could be a reason for increase in the TDS and sulphate values in the surrounding areas signifying the negative effect of RO reject on the surrounding ground water. Likewise, the hardness, fluoride and chloride content showed
a significant increase in RO reject which could again be linked to their increased values in the surrounding ground water. The contamination in the surrounding area due to RO reject could be linked to the diffusion of contaminants. Also, the RO pure showed the presence of total coli form in the drinking water which was to get treated by UV lamp and hence raises a question on the RO working. However, turbidity, pH and nitrate did not show much variation in the inlet and reject values but the nitrate value was more than the permissible value. Further, the comparison of values of the east and west direction and also of north and south direction gave an indication of the hydraulic gradient of the areas which was again a reason for increased values in one particular direction. The cost analysis showed that approx. 60,000 rupees are spent by the government on one RO plant monthly. The study concluded that in spite of a lot of expenditure by the government on these RO plants, their performance is not up to the mark; instead they have served as a source of increasing ground water pollution which calls for a need of further treatment of RO reject water. 

Wednesday, February 8, 2017

New M.Tech. Thesis Submitted from Computer Science

SVM BASED SPOKEN NUMERALS RECOGNITION FOR PUNJABI LANGUAGE by Satbir Kaur 

Abstract
The advances in digital signal processing technology had led the introduction of speech processing in several applications like speech compression, enhancement, synthesis, and recognition. In this thesis the problem of speech recognition is studied and a speaker dependent, medium vocabulary, isolated numerals speech recognition system has been developed for Punjabi language. The study implements the Support Vector Machine based isolated numerals speech recognizer in three steps. The primary step performs the end point detection, framing and windowing of the speech signal. The second step includes speech feature extraction using Mel Frequency Cepstral Coefficients. Finally, in the last step the Support Vector Machine is primarily used as recognizer and classifier for numeral of Punjabi language. The system is ready to understand the spoken utterances in Punjabi language, by removing the unwanted noise and unsuitable data from the speech signal and then translating the speech wave into quality of feature vectors. These vectors are given to SVM to predict the spoken word in written form. The Support vector machine classifier is wide used and given high accuracy. SVM has the ability to deal with high dimensional knowledge and is used in many real world problems like text categorization, character recognition and classification.

New M.Tech. Thesis Submitted from Civil

STUDY OF SELF COMPACTING CONCRETE MADE WITH BINARY AND TERNARY CEMENTIOUS BLENDS OF GROUND GRANULATED BLAST-FURNACE SLAG AND RICE HUSK ASH by Brahamjot S. Chaswall 

Abstract
Sustainable development in construction industry is aimed at improving the quality of life for everyone now and for the next generations. It encompasses environmental, economic and social dimensions, as well as the concept of stewardship, the proper management of resources used in construction and particularly concrete production in India being the second largest producer of cement in the world. The future challenge for the construction industry in India is clearly to meet the growing demand for infrastructure development and housing while at the same time limiting the impact of its burdens in CO2 emissions due to construction by use of alternative materials in construction and supplementary cementing materials as partial replacements to Ordinary Portland Cement.As we know concrete occupies unique position among the modern construction materials. Concrete is a material used in building construction, consisting of a hard, chemically inert particulate substance, known as aggregate (usually made for different types of sand and gravel), that is bond by cement and water. Concrete is normally used in the frame structure. But there is some limitation like compaction, surface finishes, maintaining strength at congested area. Due to these limitations we are trying to make self- compacting concrete with the use of mineral admixture. Self-Compacting Concrete (SCC) is an innovative concrete that does not require vibration for placing and compaction. It is able to flow under its own weight, completely filling formwork and achieving full compaction, even in the presence of congested reinforcement. Self-Compacting Concrete has properties that differ considerably from conventional concrete. This study investigates the workability and Compressive Strength properties of Self-Compacting Concrete containing Ground Granulated Blast Furnace Slag and Rice Husk Ash with super plasticizer and viscosity modifying agent. EUCOPLACANT 721 was used as super plasticizer and STRUCTRO 100 was used as Viscosity modifying agent. In this experimental program, trials were made at varying replacement levels (10%, 20%, 30% and 40%) of Ground Granulated Blast Furnace Slag and (5%, 10%, 15% and 20%) of Rice Husk Ash. The workability properties of SCC such as filling ability, passing ability and segregation resistance are evaluated using workability tests such as slump flow, V-funnel and L-Box tests. The compressive strength of the cubes at 7 days and 28 days are also obtained. The result obtained from the study proves that use of GGBS increases the Compressive strength of SCC by replacing cement to a percentage of 30% ,if the percentage is taken more than 30% the Compressive strength of SCC decreases. In case of GGBS and RHA combination the strength is highest by replacing cement with 5% of RHA and 30% of GGBS.

Monday, January 23, 2017

New M.Tech. Thesis Submitted from Electrical

FEASIBILITY STUDY OF HYBRID; SOLAR AND BIOMASS POWER PLANT by Aanchal Jain 

Abstract
The thesis is the study of combined solar and biomass hybrid arrangement for the generation of electric power. In developing country like India, the electricity demand is rising continuously but the coal reserves for electricity generation are at the verge of depletion. So there is a need of paying attention towards the alternative sources of energy generation. Renewable energy sources are the best choice as they provide clean energy and overcome global warming. But there are certain problems in operating these sources as stand-alone systems. So it will be highly beneficial if both stand-alone systems work together as hybrid system because hybrid system will provide reliable and continuous power without depending upon main system and support farmers financially by consuming biomass from their fields. The present study intends to fulfill high electricity demands by utilizing solar  energy and biomass (agri-residue) potential available in different villages of Hoshiarpur. The objective of thesis is to investigate the feasibility of hybrid solar-biomass power plant in village Binjon in Hoshiarpur district of Punjab. On the basis of data collected from different organizations and dealers, the biomass potential, per unit cost of generation from hybrid system and payback period is analyzed using MATLAB. The proposed hybrid system is designed with per unit cost of Rs 8.39. Less per capita expenditure is an index of development of any nation and by using such hybrid systems we can get less per capita expenditure values

Wednesday, December 14, 2016

New M.Tech. Thesis Submitted from Civil

Durability Properties of Self Compacting Concrete with Recycled Aggregate and Silica Fume by Mohd Ishfaq 

Abstract
Concrete is widely used construction materials. As we know, it is a mixture of coarse aggre-gates, fine aggregates, binded together by cement with addition of water. Concrete which is highly flow able and can fill the form work under its own weight, consolidates without any mechanical vibration is known as selfcompacting concrete, thus cause self-compaction. Such concrete accelerate the time of placement, reduce the labour work needed for consolidation, finishing and reduces environmental pollution. The so called first generation SCC is used mainly for repair applications and in restricted areas where it is not possible to reach easily, comprising sections that present limited access to vibrate. It has been used in applications justifying the higher material and quality control cost when considering the simplified placement and handling requirements of the concrete. Silica fume is one of the best improvements of the rheological as well as the mechanical and good chemical properties. It also improves the dura-bility of the concrete. In this present study, tests on replacement of coarse aggregates with recycled aggregates and replacement of silica fumes with cement had been done. Tests were conducted for fresh prop-erties of self compacting concrete, i.e. filling ability, passing ability, segregation resistance, so as for obtaining fresh properties according to SCC EFNARC 2002 concrete mix. The different durability properties such as chloride penetration depth, abrasion resistance, were determined on various concrete mixes. Their compressive strength was also found. Replacement by silica fume decreases chloride penetration depth, depth of wear. Concrete mix having 50% recycled aggregate and 10% silica fume replacement had comparable durability in term of the chloride depth, abrasion resistance.

New M.Tech. Thesis Submitted from Civil

INFLUENCE OF NANO-SILICA AND GROUND GRANULATED BLAST FURNACE SLAG ON CEMENT USING STATISTICAL DESIGN OF EXPERIMENT by Arvinder Singh 

Abstract
Cement and concrete have been subjected to modification in earlier research works for the enhancement in its properties. However investigating the properties of concrete at nano-level is a comparatively new concept and nanotechnology can be applied to Civil Engineering by various concepts including addition of nanomaterials like Nano-Silica. On the other hand, use of waste materials as a replacement of cement is the need of the hour and the waste materials like furnace slag does possess cementetious character. This study was performed to study the effect of addition of Nano-Silica (Nano-SiO2) (0 - 3% by weight of cement) and waste material Ground Granulated Blast Furnace Slag (GGBS) (25 – 65% by weight of cement) on the physical properties of cement like Standard Consistency, Setting times, Compressive Strength at the ages of 7, 28 days. For structuring and analyzing the experiment, the Factorial design approach was adopted. From the study it was observed that addition of even small amount of Nano-Silica can drastically change the characteristics of cement like increase in the early age strength by 15% for 3% Nano-Silica replacement due to the acceleration of hydration of cement, but it also caused the increase in consistency limit from 28% to 31%. The setting times were also drastically reduced with addition of Nano-Silica. GGBS addition however resulted in slowed the hydration reaction, decrease in strength gain and water requirement due to its low hydraulic reactivity. However, by adding GGBS alongwith Nano-Silica it restricted the drastic drop in setting times of cement and also resulted in increased compressive strength by 11% at 2% Nano-Silica and 45% GGBS replacement due to the consumption of Ca(OH)2 and formation of additional C-S-H by both Nano-Silica and GGBS. Beyond the range 2% Nano-Silica and 45% GGBS the strength reduction was noticed probably due the decrease in the available free lime concentration at high concentrations of Nano-Silica and GGBS. The analysis of above experiment was carried out using factorial design of experiment, ANOVA was adopted for analysis of the 28-day Compressive strength which gave the result that Nano-Silica had more profound effect on strength of cement. Regression analysis was adopted to derive a relationship between the compressive strength of cement and different proportions of Nano-Silica and GGBS.