Paper Title

OPTIMIZATION OF HEAT TRANSFER IN NOZZLE WITH DIFFERENT VELOCITIES AND FLOW RATES

Abstract

Nozzle is used to convert the chemical-thermal energy generated in the combustion chamber into kinetic energy. The nozzle converts the low velocity, high pressure, high temperature gas in the combustion chamber into high velocity gas of lower pressure and temperature. CFD analysis has been conducted to analyze flow pattern of supersonic rocket nozzle by using two different fluids Hydrogen Peroxide and methane. Variation in parameters like velocity, static pressure, turbulence intensity and temperature are being analyzed. This work also outlines a method for a numerical specification of a nozzle design and generation of a properly formulated CFD model to analyze it. This work illustrates that using magnification ratio or velocity alone does not result in an optimized design. These factors must be weighted to obtain a design that balances these factors for the geometry of fluid volume to be mixed. Additionally, this work shows that nozzle placement is perhaps more significant than nozzle design for optimum mixing with minimum power consumption.

Paper Title

ENHANCEMENT OF GRID POWER BY USING PV OR WIND STATCOM IN TRANSMISSION LINES

Abstract

The main aim of project is a novel concept of utilizing a photovoltaic (PV) solar farm inverter as STATCOM, called PV-STATCOM, for improving stable power transfer limits of the interconnected transmission system. The entire inverter rating of the PV solar farm, which remains dormant during nighttime, is utilized with voltage and damping controls to enhance stable power transmission limits. During daytime, the inverter capacity left after real power production is used to accomplish the aforementioned objective. Transient stability studies are conducted on a realistic single machine infinite bus power system having a midpoint located PV-STATCOM using simulation software. Power transfer increases are also demonstrated in the same power system for: 1) two solar farms operating as PV-STATCOMs and 2) a solar farm as PV-STATCOM and an inverter-based wind farm with similar STATCOM controls. This novel utilization of a PV solar farm asset can thus improve power transmission limits which would have otherwise required expensive additional equipment, such as series/shunt capacitors or separate flexible ac transmission system controllers.

Index terms: PV-STATCOM, Solar farm, Power quality, Wind system.

Paper Title

CLASSIFICATION OF GLOBAL AND LOCAL REVIEWS FOR MOBILE FRAUD RANKING BASED ON LEADING SESSIONS

Abstract

Present days apps are very fashionable because of smart phones and internet availability. According to the recent survey on apps in the year of 2015 nearly 3.5 million apps are available in Apple app store and Google play store. In order to attract the users or to promote their apps the app developers commit forged app rating, review and ranking. To tackle this type of fraud or forged app rating in this paper we provide a holistic view of ranking fraud and propose a ranking fraud detection system for mobile Apps, In this paper we will determine or classify the app rating, review and rating, furthermore instead of giving direct rating to the app we are classifying rating into local rating and global rating. In such a way the user can decide or know whether the app ratings are genuine or fraud so then he can decide whether we can download the mobile app or not.

Index terms: Ranking fraud detection, evidence aggregation, leading Session, rating and review.

Paper Title

DESIGN AND ANALYSIS OF AIRCRAFT HUB BY CONSIDERING MATRIX ALLOYS

Abstract

A wheel hub is the central portion of a wheel through which the axle passes. The wheel hub is the main part of wheel and consists of bearings and axle. The axle is connected the wheel tug.
In this paper, we design wheel hub and analyzing, meanwhile the task is to reduce the stress concentration in the Wheel Hub due to body weight of aircraft and other loads on the wheel hub.
For design of the wheel hub CATIA V5 is used. It is analyzed by using the ANSYS. While analyzing the stress, stress concentration is found in the fixed regions (location of its bolts). The stress concentration is checked in three ways and selecting the one which gives the optimum stress concentration.
The three ways are Design modification, Material changing without design modifications, material changing with design modification. From these three ways we will find out optimum changes in stress concentration.

Index terms: Ansys, Soliworks, Aircraft Hub, Alloy Materials.

Paper Title

STUDIES ON MAJOR ELEMENTS OF AN ELEVATED METRO BRIDGE BY USING BY USING STAAD PRO

Abstract

A metro system is a railway transport system in an urban area with a high capacity, frequency and the grade separation from other traffic. Metro System is used in cities, agglomerations, and metropolitan areas to transport large numbers of people. An elevated metro system is more preferred type of metro system due to ease of construction and also it makes urban areas more accessible without any construction difficulty.
Bridges are the lifelines and supporters for the improvisation of the road network. Not only do the bridges help in traffic flow without any interference but also maintain the safety of roads. Due to this reason the bridges design has gained much importance. This project is basically concerned about the analysis and design of elevated metro bridge by STAAD Pro using IRC Loading. which contains a span of 100m X 16m and has a 4-girder system. The objective is to check the result for particular input design, properties and parameters and the approach has been taken from AASHTO standard design. The nodal displacement, beam property, vehicle loading details, concrete design can be easily found out performing the analysis and design method.

Index terms: Elevated Metro Structure, Bridge Pier, Box Girder Bridge, Direct Displacement Based Seismic Design, Performance Based Design, Force Based Design.

Paper Title

IMPLICATIONS OF MAJOR INTERNATIONAL CODAL DESIGN PROVISIONS FOR OPEN GROUND STOREY BUILDINGS

Abstract

Parking space for residential apartments in populated cities is a matter of major concern. Hence the trend has been to utilize the ground storey of the building itself for parking. “Open Ground Storey” (OGS) buildings are those types of buildings in which the ground storey is free of any infill masonry walls. These types of buildings are very common in India for parking provisions. The strength and stiffness of infill walls in infilled frame buildings are ignored in the structural modelling in conventional design practice. The design in such cases will generally be conservative in the case of fully infilled framed building. But the behaviour is different in the case of OGS framed building. OGS framed building is slightly stiffer than the bare frame, has larger drift (especially in the ground storey), and fails due to soft storey-mechanism at the ground floor.
In the present study, a typical ten storied OGS framed building is considered and the building considered is located in Seismic Zone-II. The design forces for the ground storey columns are evaluated based as Indian and OGS frames are designed considering MF as 2.5 (Indian), The performance of building is studied by using stadd.pro analysis software. The computational models are developed in the program and observed in each case. The relative performances of building designed as per Indian code.

Index terms: Fragility curves, Open ground storey (OGS), Multiplication Factor (MF), Peak Ground Acceleration (PGA), Probabilistic Seismic Demand Model (PSDM)

Paper Title

EARTHQUAKE RESISTANCE OF MULTISTORIED BUILDING WITH FLOATING COLUMNS USING E TABS

Abstract

The columns which are supported on a beam instead of rigid foundation are called as floating columns. Many of the buildings in India are constructed with floating columns. This is primarily beam adopted to accommodate parking or reception lobbies in the first story. The earthquake force generated at different floor level of the building need to be carried out to the foundation by the shortest possible way which may not be the case when floating columns are provided. Providing floating columns may satisfy some of the functional requirements but structural behavior changes abruptly due provisions of floating columns. The flexural and shear demand of the beams which supports floating columns are much higher than surrounding beams, this leads to stiffness irregularities at a particular joint. Columns are main lateral load resisting elements in moment resisting frame and play a vital role in seismic performance of building. The stiffness of the storey below the floating column is usually lower than the storey above and below it. In this thesis the seismic performance of building with floating columns are presented in terms of various parameters such as displacement, storey drift, maximum column forces, time period of vibration etc. The building having various locations of floating columns ie floating columns starting from different stories are considered for the study. The building is modeled by using finite element software ETABS. Equivalent static analysis and response spectra dynamic analysis are performed on the various buildings and their seismic performance is evaluated.

Paper Title

DECOUPLED LIVELY AND REACTIVE CONTROL FOR GIANT SCALE GRID LINKED PHOTOVOLTAIC TECHNIQUES USING CASCADED MODULAR MULTISTAGE CONVERTERS

Abstract

Large-scale grid-connected photovoltaic (PV) sys-tems significantly contribute to worldwide renewable energy growth and penetration, which has inspired the application of cas-caded modular multilevel converters due to their unique features such as modular structures, enhanced energy harvesting capability, scalability and so on. However, power distribution and control in the cascaded PV system faces tough challenge on output volt-age over modulation when considering the varied and no uniform solar energy on segmented PV arrays. This paper addresses this issue and proposes a decoupled active and reactive power control strategy to enhance system operation performance. The relation-ship between output voltage components of each module and power generation is analyzed with the help of a newly derived vector dia-gram which illustrates the proposed power distribution principle. On top of this, an effective control system including active and reactive components extraction, voltage distribution and synthe-sization, is developed to achieve independent active and reactive power distribution and mitigate the aforementioned issue. Finally, a 3-MW, 12-kV PV system with the proposed control strategy is modeled and simulated in MATLAB and PSIM cosimulation plat-form. A downscaled PV system including two cascaded 5-kW con-verters with proposed control strategy is also implemented in the laboratory. Simulation and experimental results are provided to demonstrate the effectiveness of the proposed control strategy for large-scale grid-connected cascaded PV systems.

Abstract:Cascaded PV system, decoupled active and reac-tive power control, voltage distribution.

Paper Title

DECOUPLED LIVELY AND REACTIVE CONTROL FOR GIANT SCALE GRID LINKED PHOTOVOLTAIC TECHNIQUES USING CASCADED MODULAR MULTISTAGE CONVERTERS

Abstract

This work shows the results obtained from the design of the Earth Dam for a reservoir of 1.087 TMC Capacity. This water retaining earth dam design includes the design of main dam and a surplus weir. To begin, the basic design data which includes the class of the water retaining structures, characteristic water level and fetch length are determined. The work continues with the presentation of the exact location, and the different structures that constitute the earth dam. The dam slope and crest which make up the dam body are also presented followed by their sizing. In addition a study of the seepage-proofing soil and filling material of the dam body is done.

Paper Title

DESIGN OF R.C.C OVER HEAD TANK

Abstract

A water tank is used to store water to tide over the daily requirement. In the construction of concrete structure for the storage of water and other liquids the imperviousness of concrete is most essential .The permeability of any uniform and thoroughly compacted concrete of given mix proportions is mainly dependent on water cement ratio .The increase in water cement ratio results in increase in the permeability .The decrease in water cement ratio will therefore be desirable to decrease the permeability, but very much reduced water cement ratio may cause compaction difficulties and prove to be harmful also. Design of liquid retaining structure has to be based on the avoidance of cracking in the concrete having regard to its tensile strength. Cracks can be prevented by avoiding the use of thick timber shuttering which prevent the easy escape of heat of hydration from the concrete mass. The risk of cracking can also be minimized by reducing the restraints on free expansion or contraction of the structure.

Paper Title

FLEXURAL BEHAVIOUR OF CONCRETE FILLED STEEL TUBE BEAMS

Abstract

Concrete filled steel tubes (CFST) member have many advantages compared with the ordinary structural member made of steel or reinforced concrete. One of the main advantages is the interaction between the steel tube and concrete. Concrete delays the steel tube’s local buckling, whereas the steel tube confines the concrete and thereby increases the concrete’s strength. CFSTs are economical and permit rapid construction because the steel tube serves as formwork and reinforcement to the concrete fill, negating the need for either. The deformation capacity of the system is increased by the combined action of the concrete fill with the thin, ductile steel tube. The concrete fill significantly increases inelastic deformation capacity and the compressive stiffness and load capacity of the CFST member.
In building construction concrete filled steel tubes are very widely used for columns in combination with steel or reinforced concrete beam.
In this work totally 9 specimens were tested out of which 3 specimens were empty steel tubes and remaining 6 specimens were concrete filled with different bonding techniques. As it is prefabricated time consumption will be less in construction practice and due to confinement more ductility is expected which is very useful in earthquake resistant structures. Load carrying capacity of CFST almost doubled in comparison with empty steel tubes.
Ultimate load carrying capacity of concrete filled steel tube beams almost doubled compared to empty steel tubes. Compared to empty steel tubes, strength increase of 67.19%, 97.48% and 114.84% was observed in normal CFST, CFST with sand blasting and CFST with diagonal shear connector beams respectively. Average ultimate load of EST was 105.66kN whereas average load of CFSTB, CFSTBWSB and CFSTBWDSC was 176.66, 208.66 and 227kN respectively. The maximum load was taken by the specimen CFSTBWDSC – 03 which was 231kN, it may be because of presence of diagonal shear connector inside the tube.

Paper Title

STUDY ON COMPOSITE CONCRETE USING FLY ASH AND M-SAND AND FLY ASH AGGREGATES

Abstract

Scarcity of Natural River sand because of environmental condition need an alternative material. One such alternative is “Manufactured sand”. The use of Sand in concrete is desirable because of benefits such as useful disposal of a byproduct, reduction of river sand consumption and increased strength. The use of fly ash in concrete is desirable because of benefits such as increased workability, reduction of cement consumption and decreased permeability. The use of fly ash leads to a reduction in early strength of concrete but there is an increase in long term strength. This paper investigates the strength of concrete mix at 28-day and 56-day age containing 0%, 25% & 50% of fine aggregate by Sand and 0%, 25% & 50% of cementations materials by fly ash. The concurrent use of the two byproducts will lead to an economic and environmental benefit. The present study attempts to investigate the influence of partial replacement of fly ash for cement and Sand for fine aggregate on the mechanical properties and compared with the conventional concrete.

Keywords— manufactured sand, Fine aggregate, Fly Ash, Workability, Compressive strength

Paper Title

EARTHQUAKE RESISTANT STRUCTURE WITH BASE ISOLATION SYSTEM

Abstract

The main objective of this paper is to protect the buildings by designing it as earthquake resistant structure. Earthquake is one of major natural disaster in which many structures damage and collapse due to improper design against seismic motion. Earthquake also affects the economy of the nation, so essential proper measures of prevention must be developed. There are many concepts of designing a building as earthquake resistant structure; the concept used in this project is base isolation. There are many types of base isolation systems but lead rubber bearing (LRB) is used as base isolation system in this project, LRB is most widely used as isolation system for buildings.

Paper Title

ANALYSIS AND DESIGN OF A (G + 6) MULTI STOREY RESIDENTIAL BUILDING USING STAAD PRO

Abstract

In order to compete in the ever growing competent market it is very important for a structural engineer to save time. As a sequel to this an attempt is made to analyse and design a Multi-storeyed building by using a software package staad pro. For analysing a multi storied building one has to consider all the possible loadings and see that the structure is safe against all possible loading conditions. There are several methods for analysis of different frames like kani’s method, cantilever method, portal method and Matrix method. The present project deals with the analysis of a multi storeyed residential building of G+6 consisting of 5 apartments in each floor. The dead load &live loads are applied and the design for beams, columns, footing is obtained. STAAD Pro with its new features surpassed its predecessors and compotators with its data sharing capabilities with other major software like AutoCAD, and MS Excel. We conclude that staad pro is a very powerful tool which can save much time and is very accurate in Designs. Thus it is concluded that staad pro package is suitable for the design of a multi-storeyed building.

Paper Title

DESIGN AND ANALYSIS OF PRE ENGINEER FRAME WITH IS800:2007

Abstract

Steel is the material of choice for design because it is inherently ductile and flexible. Fast construction lowers overhead expenses for construction management services. Steel is extensively used in the construction of industrial buildings of large spans with or without cranes (medium and heavy buildings), where the concrete construction is not feasible.
In steel structural buildings there are 2 types. They are Conventional Steel Buildings, Pre Engineered Buildings.
In Conventional Steel buildings, mill-produced hot rolled sections (Beams and columns) are used. The Size of each member is selected on the basis of the maximum internal stress in the member. Since a hot rolled section has a constant depth, many parts of the member, in areas than the actual requirement. Extra Materials can mean extra cost and added weight.
Frames of Pre- Engineered Buildings are made from an extensive inventory of standard plates stocked by the PEB manufacturer. PEB frames are normally tapered and often have flanges and webs of variable thickness along the individual members. The frame geometry matches the shape of the internal stress diagram thus minimizing material waste and reducing the total weight of the structure. The methodology opted is PEB.
Early 1900s-Concept of metal buildings originates in USA. Simple industrial structures using truss rafters, straight columns, sectional roofs and wall were created.
Late 1950s and Early 1960s- Computerized design allowed buildings to be tailored to individual customer requirements. Roll forming lines allowed continuous span cold rolled z-purlins. Colour coated panels and factory insulated panel improved architectural appearance. Major increase in design possibilities contributed to the boom in metal buildings. The term PEB comes into existence.
1990s- PEB start dominating the low rise building market. Precision roll forming lines for the cladding and section members introduced. Automatic production lines for structural sections introduced. High quality paint systems for steel and cladding introduced. Statistics shows, about 60 % of low rise industrial and commercial buildings in USA use PEB system.

Paper Title

DANALYSIS AND DESIGN OF MULTI STORYED BUILDING BY USING STAAD-PRO

Abstract

The principle objective of this project is to analyses and design a multi-storied building (3 dimensional frame)] using STAAD Pro. The design involves load calculations manually and analyzing the whole structure by STAAD Pro. The design methods used in STAAD-Pro analysis are Limit State Design conforming to Indian Standard Code of Practice. STAAD. Pro features a state-of-the-art user interface, visualization tools, powerful analysis and design engines with advanced finite element and dynamic analysis capabilities. From model generation, analysis and design to visualization and result verification, STAAD. Pro is the professional’s choice. Initially we started with the analysis of simple 2 dimensional frames and manually checked the accuracy of the software with our results. The results proved to be very accurate. We analyzed and designed a G + 5 story building [2-D Frame] initially for all possible load combinations [dead, live, wind and seismic loads].
STAAD. Pro has a very interactive user interface which allows the users to draw the frame and input the load values and dimensions. Then according to the specified criteria assigned it analyses the structure and designs the members with reinforcement details for RCC frames. We continued with our work with some more multi-storied 2-D and 3-D frames under various load combinations. Our final work was the proper analysis and design of a G+5 3-D RCC frame under various load combinations.

Paper Title

COMPUTER AIDED ANALYSIS AND DESIGN OF MULTI –STOREYED BUILDINGS

Abstract

The principle objective of this project is to analyze and design a multi-storeyed building [G + 21 (3D frame)] using STAAD Pro. The design involves load calculations manually and analyzing the whole structure by STAAD Pro. The design methods used in STAAD-Pro analysis are Limit State Design conforming to Indian Standard Code of Practice. STAAD.Pro features a state-of-the-art user interface, visualization tools, powerful analysis and design engines with advanced finite element and dynamic analysis capabilities. From model generation, analysis and design to visualization and result verification, STAAD.Pro is the professional’s choice. Initially we started with the analysis of simple 2 dimensional frames and manually checked the accuracy of the software with our results. The results proved to be very accurate. We analyzed and designed a G + 7 storey building [2-D Frame] initially for all possible load combinations [dead, live, wind and seismic loads].
STAAD.Pro has a very interactive user interface which allows the users to draw the frame and input the load values and dimensions. Then according to the specified criteria assigned it analyses the structure and designs the members with reinforcement details for RCC frames. We continued with our work with some more multi-storied 2-D and 3-D frames under various load combinations. Our final work was the proper analysis and design of a G + 21 3-D RCC frame under various load combinations.
We considered a 3-D RCC frame with the dimensions of 4 bays @5m in x-axis and 3 bays @5m in z-axis. The y-axis consisted of G + 21 floors. The total numbers of beams in each floor were 28 and the numbers of columns were 16. The ground floor height was 4m and rest of the 21 floors had a height of 3.3m.The structure was subjected to self-weight, dead load, live load, wind load and seismic loads under the load case details of STAAD.Pro. The wind load values were generated by STAAD.Pro considering the given wind intensities at different heights and strictly abiding by the specifications of IS 875. Seismic load calculations were done following IS 1893-2000. The materials were specified and cross-sections of the beam and column members were assigned. The supports at the base of the structure were also specified as fixed. The codes of practice to be followed were also specified for design purpose with other important details.
Complicated and high-rise structures need very time taking and cumbersome calculations using conventional manual methods. Staad. Pro provides us a fast, efficient, easy to use and accurate platform for analysing and designing structures.

Paper Title

HIGH PERFORMANCE CONCRETE (M50 GRADE) USING ORGANIC MIXTURE

Abstract

Long term performance of structures has become vital to the economics of all nations. Concrete has been the major instrument for providing stable, reliable infrastructures. Deterioration, long term poor performance and inadequate resistance to hostile environment coupled with greater demands for more sophisticated architectural form, led to research into the micro structures of cements and concretes and more elaborate codes and standards. Modification in cement concrete to improve its strength and durability is need of the hour. Drawbacks of cement concrete such as low tensile strength, susceptibility to chemical attack, corrosion of reinforcement and low durability have to be overcome.
The use of blended cement is becoming common in these days owing to attempts made by the researchers in the direction of utilization of materials, which are available in nature abundantly. The new admixture ‘fenugreek’ is one such organic material, which is tried in recent times found to be satisfactory. While, there is much to be done in order to standardize the properties of the admixture. An attempt is made in the present work to investigate the influence of this admixture on the compressive strength of concrete. The experimental study of this investigation consists of concrete mix for target mean strength. The mix was worked out giving certain proportions by keeping the obtained water-cement ratio constant. The mix is obtained with water-cement ratio 0.3. For this mix the different percentages of admixtures was added i.e., 0%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5% by weight of cement. These percentages were added in cement mortar 1:3 ratio, specimens were tested up to failure to study the behavior in compression.

Paper Title

GRID INTEGRATION METHOD FOR THREE PHASE THREE WIRE SYSTEM BY MEANS OF IMPROVED PLL

Abstract

Grid synchronization algorithms are of great importance in the control of grid-connected power converters, as fast and accurate detection of the grid voltage parameters is crucial in order to implement stable control strategies under generic grid conditions. This paper presents a new grid synchronization method for three-phase three-wire networks, namely three-phase enhanced PLL The enhanced phase-locked loop (EPLL) is a synchronization system that has proven to provide good results in single phase synchronization systems. An EPLL is essentially an adaptive band pass filter, which is able to adjust the cutoff frequency as a function of the input signal. Its structure was later adapted for the three-phase case, in order to detect the positive-sequence vector of three-phase signals, This paper analyses the performance of the proposed synchronization method including different design issues. Moreover, the behavior of the method for synchronizing with highly unbalanced grid is proven by means of simulation demonstrating its excellent performance.

Paper Title

RECTIFICATION OF HARMONICS IN POWER SYSTEM BY EMPLOYING FUZZY BASED SVPWM TECHNIQUE

Abstract

In the recent decades, the world has seen an expansion in the use of non-linear loads. These loads draw harmonic non- sinusoidal currents and voltages in the connection point with the utility and distribute them through it. The propagation of these currents and voltages into the grid affect the power systems in addition to the other client’s equipments. As a result, the power quality has become an important issue for both consumers and distributers of electrical power. Active power filters have been proposed as efficient tools for power quality improvement and reactive power compensation. In this work, harmonic problem is introduced and discussed. The different traditional and modern harmonic solutions topologies are presented. Shunt active power filter as the most famous and used active filter type is introduced. The use of SAPF for harmonic current and reactive power compensation is studied. Different control methods of APF in addition to different harmonic extraction methods are presented and discussed. Self Tuning Filter for the improvement of the SAPF’s efficiency in the case of distorted and unbalance voltage system is presented and discussed. Different studied SAPF control strategies are implemented in MATLAB\Simulink and results are tabulated and discussed.

Keywords: Active Power Filter, Instantaneous Power Theory, Self Tuning Filter, Harmonics, Non Linear Load.

Paper Title

IMPROVEMENT OF VOLTAGE STABILITY AND POWER OSCILLATION DAMPING BY EMPLOYING SSSC INTEGRATED WITH SMES

Abstract

The power system network is becoming more complex nowadays so maintaining the stability of the power system is very difficult. So we have designed a 12-pulse based Static Synchronous Series Compensator (SSSC) which is operated with and without integration of Superconducting Magnetic Energy Storage (SMES) for enhancing the voltage stability and power oscillation damping in multi area system. Control scheme for the chopper circuit of SMES coil is designed. The model of power system is designed in MATLAB / SIMULINK environment and tested for various conditions. Model is tested SSSC with and without SMES is analyzed for various transient disturbances.

Keywords: Static Synchronous Series Compensator (SSSC), Superconducting Magnetic Energy Device (SMES).

Paper Title

DUAL VOLTAGE SOURCE INVERTER FOR POWER QUALITY IMPROVEMENT

Abstract

The main aim of project is to improve the power quality by using fuzzy based grid connected dual voltage source inverter. The proposed scheme is comprised of two inverters, which enables the microgrid to exchange power generated by the distributed energy resources (DERs) and also to compensate the local unbalanced and nonlinear load. The control algorithms are developed based on instantaneous symmetrical component theory (ISCT) to operate DVSI in grid sharing and grid injecting modes. The proposed scheme has increased reliability, lower bandwidth requirement of the main inverter, lower cost due to reduction in filter size, and better utilization of microgrid power while using reduced dc-link voltage rating for the main inverter. These features make the DVSI scheme a promising option for microgrid supplying sensitive loads. the proposed topology validated through simulation results.

Keywords: Power quality, Distributed energy source, Fuzzy controller, Grid connected inverter, instantaneous symmetrical component theory (ISCT).

Paper Title

EFFECT OF PATTERN LOADING ON SEISMIC BEHAVIOUR OF STRUCTURES BY CONSIDERING INFILLED EFFECT

Abstract

The accurate estimation of design actions on the structure is very important in structural design as it significantly affects the final design and objectives. Any error in the estimation of design actions may lead to wrong results of structural analysis on the structure and lead to the unrealistic sizing of its structural members or even collapse of the structure. Therefore it is important to account for the most adverse effects of live loads on the structure. The consideration of pattern loading depends on the ratio of dead to live load and the type of structural member.
These days most of the engineers are not considering the different live load patterns to get the adverse effect of the structure. Considering the live load to all the slab panels may not appropriate to estimate the design parameters. In this context, an attempt is required to see the effect of pattern live load on the structure under seismic loads. The effect of pattern load may be different from bare frame structure and also infill structures. For the present work a regular symmetrical building will be chosen and the structure is loaded with different pattern live loading is analyzed for seismic load case with and without infill walls. Different dead loads to live load ratios are also considered as a parameter.

Keywords: Live load patterns, pattern loading, infill walls

Paper Title

OPERATION OF DFIG WITH AN COORDINATED ACTIVE FILTER FACILITIES USING GRID SIDE CONVERTER

Abstract

The main of this project is operation of doubly fed induction generator (DFIG) with an integrated active filter capabilities using grid-side converter (GSC). In this system DFIG, the reactive power for the induction machine has been supplied from the RSC and the load reactive power has been supplied from the GSC. The decoupled control of both active and reactive powers has been achieved by RSC control. The proposed DFIG has also been verified at wind turbine stalling condition for compensating harmonics and reactive power of local loads. The main contribution of this work lies in the control of GSC for supplying harmonics in addition to its slip power transfer.

Keywords: Grid side converter(GSC), rotor side converter (RSC), static synchronous compensator (STATCOM)doubly fed induction generator (DFIG), integrated active filter, nonlinear load, power quality, wind energy conversion system (WECS). STATCOM

Paper Title

A STUDY ON COMPACT HEAT EXCHANGERS AND PERFORMANCE ANALYSIS

Abstract

Theory behind heat exchanger is simple, just the allowing heat energy to flow in perfectly designed system by means of conduction, convection in case of fluids and when dealt with direct firing radiation will be involved. We discuss about four main types of heat exchangers by comparing their application, capacity and range of duty which are classified based on the flow pattern of fluid in them. Plate fin exchanger is a type of compact heat exchanger where the heat transfer surface area is enhanced by providing the extended metal surface interface between the two fluids and is called as the fins. Out of the various compact heat exchangers, plate-fin heat exchangers are unique due to their construction and performance. They are characterized by high effectiveness, compactness, low weight and moderate cost. As the name suggests, a plate fin heat exchanger (PFHE) is a type of compact exchanger that consists of a stack of alternate flat plates called parting sheets and corrugated fins brazed together as a block. Streams exchange heat by flowing along the passages made by the fins between the parting sheets. Separating plate acts as the primary heat transfer surface and the appendages known as fins act as the secondary heat transfer surfaces intimately connected to the primary surface.

Keywords: Compact heat exchangers, performance study, internal fins, area of construction.

Paper Title

A STUDY ON HEAT TRANSFER IN NANO TUBES

Abstract

Interfacial thermal transport between offset parallel 10, 10 single-wall carbon NANO tubes is investigated by molecular dynamics simulation and analytical thermal modelling as a function of NANO tube spacing, overlap, and length. A four order of magnitude reduction in interfacial thermal resistance is found as the NANO tubes are brought into intimate contact. A reduction is also found for longer NANO tubes and for NANO tubes with increased overlap area. This paper presents the unique atomic structure and properties of carbon NANO tube (CNT). The electronic band structure of carbon NANO tube along with their small size and low dimension are responsible for their unique electrical, mechanical, and thermal properties. The thermal properties of carbon nanotubes are directly related to their unique structure and small size. Because of these properties, nanotubes may prove to be an ideal material for the study of low-dimensional phonon physics, and for thermal management, both on the macro- and the micro-scale.

Keywords: Heat Transfer, Nano Tubes, Thermal Properties.

Paper Title

A STUDY ON BIO-MASS HEAT ENERGY CONVERSION SYSTEMS FOR POWER ENERGY SYSTEMS

Abstract

Until the industrial revolution, humankind relied almost exclusively on biomass for their energy needs. Most of the biomass is burnt to provide heat for cooking or warmth. Some is used for small industrial applications (For instance, Charcoal is used in steelmaking in countries like Brazil, which have no major coal reserves). A small percentage of biomass is also used to generate electricity. Biomass energy accounts for around 14% of total primary energy consumption. This bold figure hides a major disparity between the developed and the developing world. Estimates of the amount of energy that can be supplied from biomass too vary widely, but according to some estimates, by 2050 it could provide as much as 50% of global primary energy supply. Generating electricity from biomass is perhaps one very attractive and easy option to make use of this valuable resource. It uses exactly the same technology that has become common in the power generation industry – furnaces to burn coal, boilers to raise steam from the heat produced and steam turbines to turn the steam into electricity. This paper describes about the study of application conversion in bio-mass to energy utilization in different ways.

Keywords: Bio-mass energy, energy conversions, application of energy transfer.

Paper Title

SEISMIC ANALYSIS OF SOFT STORY BUILDING

Abstract

Soft first storey is a typical feature in the modern multi-storey constructions in urban India. Though multi-storeyed buildings with soft storey floor are inherently vulnerable to collapse due to earthquake, their construction is still widespread in the developing like India. Functional and Social need to provide car parking space at ground level and for offices open stories at different level of structure far out-weighs the warning against such buildings from engineering community. In present study, Multi-storey regular buildings with 3 stories have been modeled using software package SAP 2000 for seismic zone II in India. In this paper an investigation has been made to study the seismic behavior of soft storey building with different arrangement in soft storey building when subjected to static loading. This analysis is with consideration of infill strength and stiffness in the upper storey and with and without consideration of braces in the ground storey. While analyzing the soft storey building linear and nonlinear analysis methods are used. In present study for Linear analysis Equivalent static method is used and For Nonlinear analysis Pushover analysis is used. From the study it is observed that, providing braces in the Ground storey with infill walls in the upper storey improves resistant behavior of the structure when compared to soft storey provided without braces.

Paper Title

FINITE ELEMENT MODELING OF REINFORCEMENTED CEMENT CONCRETE SKEW BRIDGE AND DYNAMIC ANALYSIS

Abstract

This study was focused to compare and analyses the normal and skew bridge with different angles (30°, 45°, and 60°) for IRC Class A loading to determine the deflection, bending moment and shear force. The normal and skew bridge was modeled to evaluate the effectiveness of skew angles. The result clearly show that the skew bridge with 60° reduced deflection up to 40% to 50% compared to normal bridge. The skew bridge with 60° exhibited similar trend in the reduction of both bending moment and shear force up to 30% to 35% for wheel load. Since the load carrying capacity of skew slab significantly depends on the skew angle, from this study it was found that skew angle with 60° will improve overall behavior of the bridge compared to normal bridge.

Paper Title

INTENSIFICATION OF EXTRACTION OF LIGNOCELLULIC PRODUCTS FROM SUSTAINABLE FEEDSTOCK

Abstract

The development of sustainable technology for extraction of value added products from the sustainable feedstock is gaining importance. Ferulic acidis a phenolic acid of low toxicity and one of the most important medical components possessing anti-oxidant properties. p-Coumaric acid is a hydroxycinnamic acid, an organic compound is a hydroxy derivative of cinnamic acid. It has an antioxidant property and is reduce the risk of stomach cancer. The present work is to study the extraction of different phenolic acids from agricultural wastes and to study the optimum extraction parameters. In this paper, the phenolic compounds (Ferulic acid and p-Coumaric acid) from agricultural wastes (Maize bran and bagasse peel) are extracted by using conventional method and sonochemical reactor extraction processes. The experiments is carried out in different levels starting from making different normalities solutions by using different alkaline, NaOH and KOH up to chromatography study of different phenolic compounds by using High-Performance Liquid Chromatography. Effects of extraction time, effect of extraction temperature, effect of solid/liquid ratio were optimized for each method. The optimum extraction conditions are – Extraction temperature 250C, extraction time 240 min, 3N, solid to liquid ratio 0.084 g of raw material/g of NaOH/KOH solution.
Index Terms— Sonochemical reactor, Ferulic acid,
p-Coumaricacid.

Paper Title

Novel Characterization of Few Medicinal Plant Leaves

Abstract

The experiment was designed to evaluate the conductivity, pH-values and transmission percent of traditionally used medicinal plant leaves in the form of powder using distilled water with varied physicochemical characteristics. The distilled water hydrogen ion concentration [pH] was neutral [pH 7.0] while the average pH-values of sample code in increasing order TG [7.13], IB [7.22], NM [7.43], BK [7.45] and NR [7.98]. The results indicated that the NR sample water as shown highest pH- value. There was a significant difference in the pH-values of different samples. The temperature increases conductivity increases. Concentration of the sample increases conductivity also increases by conductivity levels was responsible for the biological activity higher in NR than the rest of the samples. There was a positive significant (p < 0.05) relationship between the conductivity of the different samples. Keywords: Conductivity, leaves, pH-values, transmission percent, wavelength.

Paper Title

INTEGRATING DECISION SUPPORT SYSTEM (IDSS) IN DIABETES DIAGNOSIS USING SENSOR SYSTEM & WEB SERVICES

Abstract

In the contemporary human health problems, it is discovered that Diabetes Mellitus is causing blindness, renal failure, amputation, heart attacks and stroke. Even though other factors like working conditions& lack of physical activity are considered, the key factor found is change in the meal. It may cause unpredictable changes in blood sugar(BG) levels. To monitor a diabetes patient, any diagnosis system considers above factors. The scope of Data Mining (DM) techniques is considered to analyze the data and study relationships among those parameters. A solution with readings from sensors like gluco meter sensor, blood Pressure sensor and others is generated using data mining techniques for appropriate results to medical experts to take final decision. RFID(Radio Frequency Identification) is used to record the patient’s data with corresponding electronic health record (EHR). A sensor system as a sub system is proposed to support existing IDSS (Integrated Decision Support System) with web services to update data and find appropriate solution. DM tool classifies and analyses the pattern for diagnosis. The internet technology enables web services with low cost global connectivity between the patient’s personal device, his physician. The patient’s web portal updates the personal details, drugs remainder and the blood sugar level. This paper proposes a quicker and more efficient technique of diagnosing the disease, leading to timely treatment of the patients using IDSS. If there is any abnormality, then sensor set reads it to update & inform it by a phone call or an SMS to physician for any action.

Keywords: BG(Blood Glucose), EHR(Electronic Health Record), IDSS, RFID, DM.

Paper Title

STUDY OF BOILER CHARACTERISTICS

Abstract

Natural circulation boiler works on the principle of circulatory flow taking place because of density difference between two legs of the boiler. It works without employing any mechanical device and thus has less chance of tripping. It is known to be inherently safe and energy efficient mode of boiler operation. In view of its advantages, natural circulation is gaining ground in steam generation sector. The 300 MW Advanced Heavy Water Reactor being developed at Bhabha Atomic Research Centre in India is a natural circulation boiling water reactor (NCBWR). Use of natural circulation is very common in coal fired boilers also. With their increasing use, there is an urgent need to understand the dynamics of these types of boilers better. The natural circulation is one of the oldest principles for steam/water circulation in boilers. Its use has decreased during the last decades due to technology advances in other circulation types. Natural circulation principle is usually implemented on small and medium sized boilers. Typically the pressure drop for a natural circulation boiler is about 5-10 % of the steam pressure in the steam drum and the maximum steam temperature varies from 540 to 560 °C. In contrast to natural circulation boilers, forced circulation is based on pump-assisted internal water/steam circulation. The circulation pump is the main difference between natural and forced circulation boilers. Practically the maximum operation pressure for a forced circulation boiler is 190 bar and the pressure drop in the boiler is about 2-3 bar. Natural circulation boiler has been recognized as an economically and technically significant alternative with simple design and construction, high efficiency and intense mixing for heat and mass transfer, low power consumption, constant heat transfer areas independent of boiler load. Present work investigates the ongoing issues in boiler uses, calculating and evaluating different process parameters. Dynamics of Natural Circulation Boiler and characterization of heat transfer calculations is also studied.

Paper Title

SECURITY AND PRIVACY ISSUES USING MAPREDUCE ON CLOUDS

Abstract

MapReduce is a programming prototype that enables for huge scalability across hundreds or thousands of servers in a Hadoop. MapReduce is extensively used daily around the world as an efficient distributed computation tool for a huge class of problems such as search, clustering, log analysis, different types of join operations, pattern matching, matrix multiplication and analysis of social networks. Privacy and security of data and MapReduce computations are significant concerns when a MapReduce computation is implements in public or hybrid clouds. In order to perform a MapReduce functions in hybrid and public clouds, authentication of mappers-reducers, privacy of data-computations, Integrity and reliability of data-computations and freshness-correctness of the outputs are mandatory. Satisfying these necessities defend the operation from a number of types of attacks on data and MapReduce computations. In this Security and privacy challenges and needs, considering a range of adversarial capabilities, and characteristics within the scope of MapReduce. We presented security and privacy protocols for MapReduce and talk about their transparency problems.

Keywords: Cloud computing, Hadoop, HDFS, hybrid cloud, public cloud, private cloud, MapReduce algorithms, distributed computing, privacy, security.

Paper Title

ANALYSIS OF ESTERIFICATION REACTION UNDER MICROWAVE IRRADIATION

Abstract

The organic synthesis is one of the major roles of research in chemistry, which is used to improve everyone life. The use of microwave assisted organic synthesis (MAOS) has become increasingly popular within the pharmaceutical and chemical engineering areas. Sudden increase in Gibbs energy due to increase in temperature by microwave radiation, this is main reason to increase the rate of reaction. Esterification is the reaction which gives high conversion in microwave as compare to conventional heating. Study of esterification reaction is done with varying temperature, power and other parameters. Discover CEM is used to carry out reaction in microwave. Microwave synthesis is used for various applications in organic chemistry as well as analytical chemistry. Esters are one of the most common derivatives of carboxylic acids and are widely distributed in both nature and industry. Esterification is one of the major reactions which perform under microwave irradiation gives higher yield than conventional method. Analysis of variance, often abbreviated to ANOVA, is a powerful statistic and a core technique for testing causality in biological data and chemical data. Researchers use ANOVA to explain variation in the magnitude of a response variable of interest. This statistical analysis tells you whether that parameter is significant or not. The statistical analysis of conventional reaction data gives the significant parameters Based on that parameter experiments done in microwave assembly for higher conversion which gives optimize power for each parameter.

Keywords: MAOS, Esterification reaction, Analysis of variance, Optimize power

Paper Title

AN INVESTIGATION ON HIGH STRENGTH CONCRETE BLENDED WITH SILICA FUME AS A CEMENT REPLACEMENT

Abstract

This paper presents the result of mix design developed for high strength concrete and with replacement of cement by silica fume a comparison is drawn to find optimum percentage of silica fume .It involves the process of determining experimentally the most suitable concrete mixes in order to achieve the maximum compressive strength of concrete for various mix proportions. In this research work 53 grade Ordinary Portland Cement, the locally available river sand, 16 mm and 10 mm graded coarse aggregate with a combination of 60% and 40% were selected based on ASTM C 127 standard for determining the relative quantities and proportions for the grade of concrete M60. For this design, ISI 10262-2009 guidelines were followed by trial and error method fixed the mix design without any mineral admixtures.

Keywords: High Strength Concrete, silica fume, compressive strength, Water to cement Ratio.

Paper Title

ANALYSIS OF RESIDUAL STRESSES IN A DISSIMILAR METAL WELDED JOINT

Abstract

Welding is a fabrication or sculptural process that joins materials, usually metals or thermoplastics, by causing coalescence. This is often done by melting the work pieces and adding a filler material to form a pool of molten material (the weld pool) that cools to become a strong joint, with pressure sometimes used in conjunction with heat, or by itself, to produce the weld.
In this project we are going to study of changing properties of two dissimilar metals while welding and also analyze the distribution of the residual stress, thermal and structural defects in weld joints by means of finite element method (FEM) using ANSYS and ABAQUS software’s.
In this process we are going to simulate the welding process of two dissimilar metals (stainless steel with copper), because of this complex welding process. Predicting residual stresses becomes a very difficult challenge.
Recently, a number of numerical models based on thermal elastic plastic finite element method have been used to predict residual stresses in dissimilar metal weld joints. It has been recognized that residual stresses in a welded structure are the product of its entire history. Therefore, when numerical simulation technology is used to obtain residual stresses, the result would be less accurate.
In the present work, an attempt is made to predict residual stresses in dissimilar metals by means of an improved computational procedure. With using the computational procedure, the variations of the stress status in welding processes are investigated. In addition, the numerical results are compared with the theoretical data and the usefulness of the computational procedure is verified.

Paper Title

RIVER BANK FILTRATION- A NATURAL TREATMENT OF DRINKING WATER

Abstract

Most of the drinking water schemes in the State of Andhra Pradesh, India mainly depend upon river water through infiltration galleries or intake wells. Some of these drinking water schemes are operating by diverting river water through canals into artificial or natural tanks/ponds and thereby to elevated water tanks after proper treatment. Presently the Rural Water and Sanitation (RWS) department is supplying protected drinking water to villages from groundwater by drilling bore wells in suitable geological formations and nearby river banks. After conducting field survey in alluvium formations of Andhra Pradesh, it is found that there is no technically designed River Bank Filtration (RBF) method found in the field. However few river bank bore wells yields good quantity and quality of water. Drinking water schemes in coastal Andhra Pradesh were visited, and during the visit river water/riverbank bore water samples were collected and analyzed for chemical parameters. It is found that there is a significant difference between river water and river bank bore well water hydrochemistry. There is a potential scope for technically designed RBF schemes in the coastal alluvium formations in Andhra Pradesh.

Paper Title

NANO MATERIALS –IT’S APPLICATIONS IN THE PRESENT ERA

Abstract

Nano technology is one of the most rapidly advancing scientific technologies today. Nano technology is a field of applied science focused on the design, synthesis, characterization application of materials and devices on the nano scale i.e. the study of nano materials is known as nano technology. So nano technology includes nano meter scales processing and the production of various components by controlling size and shape .A nano meter is one billionth of a meter. Generally the size is less than 100 nm, those production techniques can be consider as nano scale. There are two methods are used to produce nano materials one is called top down method and another is the bottom up method. In the first method, very small components are produced using larger parts of the material and in the bottom up method nano materials are produced by processing molecule by molecule or atom by atom.

Paper Title

SYNTHESIS OF BIODIESEL FROM CRUDE NEEM OIL IN A BATCH REACTOR

Abstract

Biodiesel production from renewable sources is widely considered to be one of the most sustainable alternatives to petroleum sourced fuels and a viable means for environmental and economic sustainability. Vegetable oils are most widely used for the production of Biodiesel now-a-days .But these cannot be used directly for the production of biodiesel because they have high viscosity, high flame point and high density. In the present study Neem oil is used to convert it into biodiesel because Neem seeds contain 30-40% of the oil. Neem oil is converted to biodiesel by a two-step process. One is by Acid pretreatment and second is base catalyzed Trans esterification reaction to produce biodiesel of various molar ratios and their properties are characterized.

Keywords: Biodiesel, Tranesterfication, Free fatty acid content, acid pretreatment, Neem Oil.

Paper Title

FINDING THE CLOSEST PATH TO POINT OUT THE NEIGHBOUR WITH KEYWORD

Abstract

Conventional spatial queries, such as range search and nearest neighbor retrieval, involve only conditions on objects’ geometric properties. Today, many modern applications call for novel forms of queries that aim to find objects satisfying both a spatial predicate, and a predicate on their associated texts. For example, instead of considering all the restaurants, a nearest neighbor query would instead ask for the restaurant that is the closest among those whose menus contain “steak, spaghetti, brandy” all at the same time. Currently the best solution to such queries is based on the IR2-tree, which, as shown in this paper, has a few deficiencies that seriously impact its efficiency. Motivated by this, we develop a new access method called the spatial inverted index that extends the conventional inverted index to cope with multidimensional data, and comes with algorithms that can answer nearest neighbor queries with keywords in real time. As verified by experiments, the proposed techniques outperform the IR2-tree in query response time significantly, often by a factor of orders of magnitude.

Keywords:

Paper Title

A STUDY ON CLOUD BASED SECURE PERSONAL HEALTH RECORD SHARING USING

Abstract

A promising patient-centric model for health record exchange between multi users, Exchanging cloud-based patient health information holds huge guarantee for authorize patients and make sure more effective make public of patient health record. So in this manuscript, we design a novel system. It allows PHR owners to securely accumulate their health record on the semi-trusted cloud service providers, and to selectively share their health data with a wide range of PHR users. To reduce the key management complexity, we divide PHR users into two security domains named open domain and own domain. PHR owners encrypt their health data for the public realm using cipher text-policy attribute-based encryption scheme, while encrypt their health data for the personal domain using anonymous multi-receiver identity-based encryption scheme. Only authorized users whose credentials satisfy the specified cipher text-policy or whose identities belong to dedicated identities can decrypt the encrypted health data. Extensive analytical and experimental results are presented which show that our PHR system is secure, privacy-protected, scalable and efficient.

Keywords: Personal health report, cloud computing, data isolation, fine-grained access control, attribute-based encryption

Paper Title

OVERVIEW OF IDS AND HOST-BASED INTUSION BASED DETECTION SYSTEM

Abstract

Intrusion detection introduces to the method of controlling the issues occurring in a network system, monitoring them for signs of assurance problems. The universal meaning of intrusion apprehension suggests the similar monitoring practices in other areas, including criminal signals and video-monitoring systems found in banks and other distinguished stores. Even the information systems in civil defense and military fall into this working category. Although the strategies operated are different in the various monitoring systems, yet the basic idea remains the same. But in this context, intrusion detection is defined as a process of detecting and responding to the malicious activity focused on computing and networking resources. Intrusion detection means treated by the method of observing the events occurring in a computer system or network and analyzing the violations or imminent threats of security policies or standard security practices violation. These violations may happen performed by malware such as worms, spyware, virus, unauthorized access to the systems by some attacker, and authorized users misusing their privileges or flaws resulting in granting the attacker elevated access to the network.

Keywords: IDS, HIDS, NIDS, DOS.

Paper Title

A STUDY ON MULTILEVEL CURRENT SOURCE INVERTER IN VARIOUS APPLICATIONS

Abstract

Traditionally DC-AC converters are considered with voltage source inverters (VSI); although less studied and discussed, it has started recently to be used current source inverters (CSI). Another possibility for DC/AC conversion is the multilevel configuration. DC/AC power converters are very much useful to provide ac output from DC power supply. Based on their operation, these converters find their way in lot of applications such as Flexible AC Transmission System (FACTS), Uninterruptible Power Supply (UPS), and HVDC Transmission System etc. These converters are often classified into voltage source and current source inverters. In these, multi level configuration is common for both converters which are suitable for high power applications. In this paper, a different multilevel CSI is proposed: the paralleled configuration.

Keywords: 7 level CSI, AC-DC converter,transmission system.

Paper Title

INCREASING SLA BASED ACCESS CONTROL IN CLOUD COMPUTING

Abstract

Cloud computing is the most advanced technology in the real world environment and provides flexible and convenient possibilities for users to utilize available services. Resource provisioning to the satisfaction of user requirements becomes the most challenging task in the heterogeneous cloud environment. Proper admission control algorithms need to be proposed for better resource provisioning with improved user satisfaction level. In this research, Knowledge based Service Level Agreement (SLA) aware admission controlled scheduling and resource allocation is proposed which makes use of machine learning algorithms namely Support Vector Machine (SVM) and Artificial Neural Network (ANN) for better admission control. It seeks to study the knowledge of resource status information by using machine learning algorithms in the training phase. Based on these strategies, admission control would be done in the testing phase which would lead to efficient and better resource provisioning.

Keywords: Service Level Agreement, Artificial Neural Network (ANN), Cloud computing.