No. |
Title and Author |
Area |
Country |
Page |
251 |
Pre-Processing Concept in Data Mining
-M. Sathish ; K. G. Shri Ranjani
Data pre-processing is an essential and critical step in the data mining process and it has a huge impact on the success of a data excavating project. Data pre-processing is a first step of the Knowledge discovery in databases (KDD) process that reduces the involvement of the data and offers better analysis and ANN training. There are a number of different tools and methods used for pre-processing, including: sampling, which selects a characteristic subset from a large population of data; transformation, which handle raw data to produce a single input; denoising , which removes noise from data; control, which organizes data for more efficient access. Data pre-processing includes cleaning, Integration, Transformation, reduction. Pre-processing technique for soil data sets are also useful for classification in data mining. Read More...
|
Computer Science |
India |
1035-1036 |
252 |
Determination of Hg (II) and Cr (VI) Ions using Phenosafranine Functionalized Multiwalled Carbon Nanotubes Modified Electrode
-C. Kokila ; M. Arun Kumar; A.Gomathi; P. Leema Sophie; Dr. K. Meena
The develepment of chemically modified electrode has attracted a lot of attention during the past three decades and number of methods has been proposed for modifying the electrode surface. The utility of CMEs in the analysis is growing day by day because of the selectivity and sensitivity associated with these electrodes. The recent trend is to use nano materials which are having amazing electrical condution to achieve better sensitivity. The modified electrodes have attracted considerable interest in electrochemistry. This involves coating of substrates of biological, environmental and pharmaceutical importance. In this investigation, characterization of Phenosafranine functionalized MWCNTs modified graphite electrode and its electrocatalytic behavior for some analytes have been experimented. Read More...
|
chemistry |
India |
1037-1048 |
253 |
Power Quality Improvement using Voltage Source Converter Based Shunt Active Filter
-Rajneesh Kumar ; Mrs Neha Midha
One of the primary power quality concerns as of now is the presence of music. Shunt dynamic power channels are broadly connected in control circulation frameworks to alleviate current music and remunerate the receptive power. In this paper the quick receptive power hypothesis is utilized to recognize reference remuneration current for the controller of the shunt dynamic channel and a hysteresis current controller is utilized to orchestrate it correctly. Hysteresis current controller is one of the least difficult current control strategies and the most prevalent one for dynamic power channel applications, yet it experiences an uneven exchanging recurrence, to beat this burden a novel fluffy hysteresis current controller is being utilized. The proposed controller is portrayed by effortlessness because of lessening the measure of counts that makes it acting quicker and doesn't depend on the heap parameters. The framework was displayed and recreated utilizing MATLAB/SIMULINK. The aftereffects of reproduction are introduced and talked about they demonstrate the viability of the proposed fluffy hysteresis controller in enhancing the PWM execution and in this manner enhance the shunt dynamic power channel execution. Read More...
|
Electrical Engineering |
India |
1049-1054 |
254 |
Review of Experimental Investigation and Mechanical Characterization of Aluminium Alloys by using Friction Stir Welding
-Mr. Pawar Pradip Bhausaheb ; Prof. S. S. Pathak; Prof. B. S. Gandhare
The increasing application of innovative materials, such as high strength aluminum alloys, is challenging the manufacturing processes of the Aerospace and Aeronautics Industries. Despite this challenge the processes need to comply with high requirements regarding the reproducibility and the quality of the products. For this reason the adaption of conventional welding technologies to the new materials is considered to be difficult. Therefore, innovative welding technologies such as Friction Stir Welding (FSW) have been developed Friction Stir Welding is a well solid state joining technology. Many processing conditions and materials properties affect the microstructural evolution and mechanical behavior of the made joints. The main parameters involved in the welding process have been studied and the results presented in the present study. The analysis was conducted through employing a multi-objective optimization tool capable of correlating all the material properties and processing parameters to the final mechanical performances of the welds. The Aluminium alloy plates of are welded in rectangular butt joint geometry by friction stir welding (FSW) process, using CNC vertical milling machine. Process parameters such as welding speed and tool rotational speed play an important role to obtain a better weld joint for similar metals/materials. The friction stir welding tool is one of the critical components to the success of this process. It consists of a cylindrical shoulder and a pin with different geometry. In the experimental work, tool has been made with cylindrical pin having four different geometries for friction stir welding of the similar circular metal plates. Effects of process parameters on butt welded rectangular joint were investigated for weld strength. Read More...
|
M.E MECHANICAL ENGINEERING (DESIGN) |
India |
1055-1058 |
255 |
A Node to Node Routing System for Green Network
-Bhavani ; Shivleela Patil
Here in this project concentrating on energy saving within the internet. Green network are the Network hosting which includes green technologies in order to avoid conservational effect (Minimizing the total energy consumption). However, dissimilar traffic volumes leads consumption of different energy values due to the technologies, likes adaptive link rates, trunking (IEEE 802.1AX), etc. Proposing a technique to design green network routing, where the routing network should follow in such a way that s green. Transfer the file from source to destination. By giving an IP address using Dijkstra-Green-B Algorithm and successfully sent to a destination and finally it shows the power consumption in joules. Already they have proposed with switch arrange segments, for example, line cards and switches, into rest mode. We don't cut the Internet topology. So here, we pick a hub to-hub technique. Furthermore, it is significantly less demanding to incorporate our plan into the present system. Read More...
|
Computer Science and Engineering |
India |
1059-1062 |
256 |
Implementing High-Quality-Grained Multiple Data Users and Multi-Keyword Search Assisting Sub Terminologies over Cloud Records
-Priyanka.D ; Nandini. Patil
The main concern in cloud computing is the searching on the encrypted data. The query is not known to the clouds and searching concept based on the Keyword should show all the files in the cloud. The main aim is to provide the privacy protection and safety to the data that is saved in cloud system. To upload and download a file securely from cloud and to encrypt and decrypt the files from the cloud .To provide keys to users for downloading file from cloud securely. To keep the identity of each user and data owners protected and to store all the information on cloud in protected manner. This proposed aRank search concept is introduced which takes less time by choosing the desired files along with keyword categories and The proposed scheme can support complicated logic search the mixed “ANDâ€, “OR†and “NO†operations of keywords. Data owner provides the file to browser, encrypt and uploads files into the Drivehq in encrypted form. Cloud server will provide following operations such as store encrypted data, view attachers, view owner files, give privileges to user to create index on searched data to view all the android users. User can get the files from the cloud by using their credentials and secret key. User can searches for files based on contents keyword request for secret key, requests for downloading files and retrieve and to store the data. Read More...
|
Computer Science and Engineering |
India |
1063-1065 |
257 |
High Efficiency PV fed Home Inverter with Grid Interfacing Capability
-Asmita Moreshwar Malke ; D. R. Binu Ben Jose
This paper presents a residential photovoltaic (PV) system with maximum power point tracking (MPPT) and grid interfacing ability. A multi-level boost converter (MBC), a battery bank and a half bridge inverter have been used to perform the function. A PV panel rated for 250 W, 29 V, 8.6 A is boosted to 72 V by the MBC. As the battery bank is connected at the output of the MBC, the output voltage is clamped at the battery voltage and is constant irrespective of irradiation. The power exchange between the PV array, battery bank, load and the grid has been suitably managed by the closed loop controller. Hence, reliable power has been delivered to the load. Variation in PV power is not reflected in the load voltage or dc bus voltage; instead changes occur only in the MBC output current. This leads to the elimination of voltage sensor for MPPT. The proposed system thus uses only the dc link current data for obtaining MPPT unlike the traditional systems that uses both voltage and current. The half bridge inverter is used to deliver the generated power from PV panel to the grid and load. The complete scheme rated for 250 W has been modeled using MATLAB/ SIMULINK and the results are compared in open loop and closed loop modes. The results gave a close agreement proving the efficacy of the system. Read More...
|
ELECTRICAL AND ELECTRONICS ENGINEERING |
India |
1066-1070 |
258 |
Physico-Chemical Analysis of Textile Dye Wastewater
-Annapurnamma Mahajansheeti ; Dr. S. R. Mise
Sample of textile industry wastewater was collected. The results of this analysis are compared with the waastewater effluent standards of CPCB. In this analysis the various physicochemical parameters such as pH, colour, odour, temperature, alkalinity, chloride, total dissolved solids (TDS), total suspended solid (TSS), sulphate, phosphate, nitrate, Oil& grease, COD and BOD, were determined using standard procedures from CPCB guideline. Textile industry is one of the most important and rapidly developing industrial sector in Vijayapur city Karnataka. It has a high importance in terms of its productivity, since it consumes considerably high amounts of processed water and produces highly polluted discharge water in large amounts. Result shows that some physic-chemical parameters are within permissible limit & some parameters are higher than permissible limit, so that a proper treatment is needed before discharge to avoid environmental problems. Read More...
|
Environmental Engineering |
India |
1071-1073 |
259 |
A Study on Solar Stills for Desalination
-A. Renuka Prasad ; Dr. Sumer Singh; Dr. Harish Nagar
Solar stills represent the foremost attractive and simple technique among all distillation processes. The Solar stills work by the simple concept of evaporation and condensation as a direct simulation of the greenhouse effect. Solar still is a device, which produces fresh water from either seawater or water by utilizing freely available solar energy. It utilizes the solar thermal energy for evaporation of the basin water. This paper represents the Classification of Solar still, factors affecting the Solar still productivity and working principle of Solar still. The method Desalination is ground brackish water by solar powered systems is a practical and promising technology for producing potable water in the regions, which suffers from water scarcity especially in arid areas. Desalination process is used to reduce Total Dissolved Solids (with TDS of 500p.p.m and above) to an acceptable level of TDS equal to 500p.p.m. The Solar stills are efficiently used in Industries, Hospitals and Dispensaries, Automobile workshops and Desalination. Read More...
|
Solar Energy |
India |
1074-1079 |
260 |
A Note on Significance of Salts and Liners used in Solar Pond
-A. Renuka Prasad ; Dr. Sumer Singh; Dr. Harish Nagar
India faces an enormous challenge it is to meet the energy requirement over the next 25 years, because the increased population and the Industrial activities in India. Solar pond is a natural or artificial body of water for collecting and absorbing solar radiation energy and storing as heat. Thus a solar pond combines solar energy collection and sensible heat storage. This paper presents an overview of different Salts and Liners used in solar pond. The salts and liners are played very important role in operation of solar pond. In solar pond, maintenance of salinity gradient depends upon the salt quantity in non-convective zone. Liners are insulation material at the bottom of solar pond. The liner material should with stand the maximum pond temperature and should be chemical stable. The efficiency and life time of solar pond depends mainly on the behavior of the gradient Non Convective Zone. These ponds are economically attractive in climates with little snow and in areas where land is readily available. A major advantage of the solar ponds is the Independence of the system. No back up is needed because the ponds have high heat capacity and enormous thermal mass. Nowadays, solar ponds are efficiently used in Power Generation, Desalination, Food Processing and Hot water Production. Read More...
|
Solar Energy |
India |
1080-1086 |
261 |
Influence of Silica Fume on Flexural Strength of Concrete
-Syed Irfan Simnani
Portland cement is the chief, versatile constituent of concrete and relatively a high cost material. Large scale production of cement leads to serious environmental impacts on one hand and depletion of natural resources on other hand. This potent threat to ecology has led researchers to use industrial by products as supplementary cementious material in making concrete. The main parameter investigated in this paper is M35 grade concrete with partial replacement of cement by silica fume by 0, 5, 10,15 and 20%. This paper presents an experimental study on flexural strength at age of 7 and28 day. Test results indicate that use of Silica fume in concrete has improved the performance of concrete in flexure and the optimum silica content being 15%. Read More...
|
Civil Engineering |
India |
1087-1088 |
262 |
Influence of Silica Fume on Compressive Strength of Concrete
-Syed Irfan Simnani
Traditionally, Ordinary Portland cement is used for making the civil structures. Portland cement can be partially replaced by silica fume. Water-binder ratio adopted is 0.35 and the grade of concrete used is M35. Silica fume is non metallic and non hazardous waste of industries. It is suitable for concrete mix and improves the mechanical properties of concrete like compressive strength etc. The main objective of this research work is to determine the optimum replacement percentages which can be suitably used under the Indian conditions. In order to determine the optimum replacement percentage comparison between the regular concrete and concrete containing silica fume is done and the corresponding compressive strength at 7 days & 28 days has been plotted. It has been seen that when cement is replaced by silica fume compressive strength increases up to certain percentage (15% replacement of cement by silica fume).But higher replacement of cement by silica fume gives lower strength. Read More...
|
Civil Engineering |
India |
1089-1090 |
263 |
Defending Against RREQ Flooding Attack in AODV in MANETS
-Suhail Mehraj ; Er Vikas Zandu
Mobile Ad Hoc Networks (MANETs) is a collection of mobile nodes without the help of network infrastructure or centralized administration. Each node in mobile ad hoc network is equipped with a wireless receiver and transmitter which allow it to communicate in its radio communication range. Due to the dynamic topology and self maintenance capabilities, MANETs become more vulnerable. So, Security challenges have become a primary concern to provide secure communication between mobile nodes. Flooding attack is one of the security threat in which the attacker will flood the whole network with fake packets to waste the bandwidth and resources of the network. Attacker will send large amount of RREQ traffic to waste the bandwidth and resources of the network, usually the destination IP chosen for RREQ will not exists in the network , so no node knows the position of the required IP , as a result the RREQ will pass through whole the network. Any destination node will always be busy in receipt of unwanted data. Proposed work in the thesis works on the basis of the signature of the request packets received at the intermediate. The proposed scheme is validated in NS2 simulator and the result shows that it is successfully able to detect the attack and to prevent the network from flooding of request packets. Read More...
|
Computer Science and Engineering |
India |
1091-1095 |
264 |
Investigation on Erosion Wear Behavior of PTFE and Graphite Filled S-Glass Fiber Reinforced Vinyl Ester Composites
-Priyank Sentiya ; Sudhir Tiwari; Gautam Yadav; Prince Rai
The influence of PTFE and Graphite fillers on erosive wear behavior of Glass Fiber – Vinyl Ester composites are analyzed. The mechanical properties such as tensile strength of the composites have also been reported. The erosive wear behavior of the composites was tested using air jet erosive wear testing machine at varying impingement angle (300, 600, 750, 900), Experiment were conducted using aluminum oxide(Al2O3) of 50 micron as erodent particles at constant air jet speed 75 m/sec, discharge rate of erodent was 10 gm/min, pressure 0.8 bar at atmospheric condition. A significant reduction in wear loss and specific wear rates were noticed after incorporation of PTFE and graphite filler into the glass-vinyl ester composite. This result indicates that the significant influence of PTFE and graphite filler allowing less wear of matrix during erosion which in turn facilitates lower fiber damage, due to the presence of PTFE/graphite particles on the counter surface, which act as a transfer layer and effective barriers to prevent large-scale fragmentation. The result also showed that the 10%PTFE filler by weight ratio to polymer composition composite show’s less wear than S-glass vinyl ester reinforced composite and 10% graphite filler reinforced S-glass vinyl ester. Read More...
|
M.E IN MECHANICAL ENGINEERING (TRIBOLOGY AND MAINTENANCE ENGINEERING) |
India |
1096-1099 |
265 |
Study of K-Eccentric and K-Hyper Eccentric Indices of Hexagonal Chain
-K Easu Julia Rani ; M. Bhanumathi
Let G be a connected graph with vertex set V(G)and edge set E(G). In this paper, we compute the first and second K-eccentric, and the first and second K-hyper eccentric indices. Read More...
|
MATHEMATICS |
India |
1100-1109 |
266 |
Study on Retrofitting of Concrete Beam Structure using Carbon Fibre Reinforced Polymer (CFRP)
-Nagendra Dhooper
Recent earthquakes have demonstrated that most of the reinforced concrete structures were severely damaged during earthquakes and they need major repair works. Beam-column structures, being the lateral and vertical load resisting members in reinforced concrete structures are particularly vulnerable to failures during earthquakes. The existing reinforced concrete beam column structures, which are not designed as per code IS 13920:1993 must be strengthened since they do not meet the ductility requirements. The Finite Element Method (FEM) has become a staple for predicting and simulating the physical behaviour of complex engineering systems. The commercial finite element analysis (FEA) programs have gained common acceptance among engineers in industry and researchers. The details of the finite element analysis of beam-column joints retrofitted with carbon fiber reinforced polymer sheets (CFRP) carried out using the package ANSYS are presented here. Four exterior reinforced concrete beam-column structures were modelled using ANSYS package. The first beam is the control specimen. This had reinforcement as per code IS 456:2000. Other beams are retrofitted with one layer, two layers and three layers of Carbon Fibre Reinforced Polymer (CFRP) respectively. During analysis both ends of beam are simply supported and concentrated load is applied at the midpoint, but in case of column, bottom end is fixed and other end is free. An axial load is applied at the top of the column. This performance is compared with the concrete beam-column structure which do not layered with Carbone Fibre reinforced Polymer (CFRP) sheet. Read More...
|
Civil Engineering |
India |
1110-1114 |
267 |
Treatment of Pharmaceutical Wastewater by Electrocoagulation
-Bhushansingh Rathor ; Dr. S. R. Mise
This work presents removal of COD (Chemical Oxygen Demand) from Pharmaceutical wastewater by Electrocoagulation (EC) process using Iron as a sacrificial electrode which is currently used for the purification of many types of water and wastewater. The effecting parameters such as applied voltage, electrolysis time and pH are studied to achieve higher removal. The performance of EC process is carried out in batch reactor. In this process, samples are taken out from the batch reactor at regular interval of 20 minutes. the experimental results also show that the COD removal is strongly influenced by the initial pH. The highest COD removal efficiency of 79.80% occurred at 1A, 16V at electrolysis time of 120 minutes with optimum pH 9 using Iron electrode. In this study, the EC process is proved effective and is capable in removing COD efficiently. Read More...
|
Environmental Engineering |
India |
1115-1117 |
268 |
Design of Waste Water Treatment Plant for Gulbarga City using MBR Technology
-Tousiqur Rahman ; Prof B. G. Mahendra
In this present study consists of understanding MBR technology and it’s feasibility to Gulbarga city. As rapidly expanding Gulbarga city (officially Kalaburagi) is a city in the Indian state of Karnataka, India. It is the administrative headquarters of the Gulbarga District and a major city of the North Karnataka region. As per data released by Govt. of India for Census 2011, Gulbarga is an Urban Agglomeration coming under category of Class I UAs/Towns. This study is mainly focus on the overcoming environmental challenges which may encounter in near future. It include Characterizing municipal waste water of Gulbarga city, designing sewage treatment plant using advance treatment method MBR Technology.it also contains result obtained from pilot model study of membrane Bioreactor. Read More...
|
Environmental Engineering |
India |
1118-1122 |
269 |
Pavement Performance Evaluation of Roads Constructed using Zydex Nanotechnology under the Technology Demonstration Project of Namma Grama Namma Raste Yojane (NGNRY)- Post Monsoon
-Madhu K A ; Aravindan S; Chandrashekhar S Y; Praveen Kumat
The main task of present evaluation work is to conduct pavement performance evaluation of roads which is constructed using Zydex nanotechnology under the technology demonstration project of Namma Grama Namma Raste Yojane (NGNRY) under KRRDA, in Chitradurga and Tumkur District in Karnataka. The purpose of the work is to conduct pavement performance studies on roads which consist of structural and functional evaluations and Geotechnical Investigation (Grain Size Analysis, Atterberg Limits and CBR). The road stretch is evaluated by MERLIN (Roughness evaluation) and pavement condition survey. Detailed survey has been carried out on roads. Road inventory survey includes visual observation, soil characteristics and shoulder condition survey. Severity of potholes, area of patching, cracking of bituminous layer, percentage of raveling, longitudinal depression, rut depth has been measured during condition survey of the pavement. The test were carried out on 5 different roads in Karnataka incorporated with zydex nano technology materials, all the roads were free from pavement distresses, structural conditions of the pavement was good and roughness value shows less significance on vehicle operation cost. Read More...
|
Civil Engineering |
India |
1123-1126 |
270 |
Optimization of Continuously Variable Transmission
-Nikhil Sunil Patil
The Automotive industries has undergone a massive change in last few decades. Producer of the cars are now looking for more sophisticated designs to reduce the cost and Consumers are now focusing on reduction in work and improvement in comfort. There are various innovative ideas implemented by Automotive industries to ensure the desired comfort with minimizing the cost, weight, work and time. Gear transmission system in one of the major parts of an automobile. The aim of this paper is to see how transmission system of an automobile can be sophisticated and automated. Through this study, the working of automatic gear transmission system, it's advantages and limitations along with different ways of Optimization are discussed. Finally, optimized transmission systems are presented. Read More...
|
Mechanical Engineering |
India |
1127-1131 |
271 |
Brain Tumor Segmentation and Detection using F-Transform
-Shital Patil ; Prof. J. A. Shaikh
Brain tumor is one of the most life-threatening diseases and hence it's detection and segmentation should be fast and accurate. Segmentation is used to separate the abnormal tumor portion in the brain. These tumors are unsharp and faint but their intensity value vary from neighboring healthy tissues. The first step of brain tumor detection is detection and second is segmentation. In detection stage check symmetry and asymmetry of brain and in segmentation stage fuzzy transform and morphological operations are performed. Read More...
|
M.E. in ELECTRONICS ENGINEERING |
India |
1132-1134 |
272 |
Efficient Construction by Lean Management
-Ankur Dev Jain ; Praveen Tomar
In sense to develop the performance and reduction of waste, the lean techniques has been introduced as a new construction principle for better functioning. There are many challenges to implement the lean concept in construction industry. In India, the execution of lean management in construction field is a big task. Due to lack of awareness and illiterate towards the lean management principle. The main focus of this study is to implement lean thinking concept in order to manage, improve & develop the product faster while improving or at least maintain the level of performance & quality in construction industry. In order to find out the wastages prepare the questionnaire and finding out the major factors for waste generation and less productivity. The responses are taken from both, freshers as well as experienced people from the industry. Fresher’s are selected because they are aware of the lean principle and experienced knows well about the kind of wastage and its reasons. The questionnaires were evaluated to adopt the techniques through statistical methods. This paper presents the possibilities of efficient implementation of lean management principle in construction industry, which will definitely increase the worth of work and profit rate by eliminating the wastage. Read More...
|
M.Tech in Construction Project Management |
India |
1135-1138 |
273 |
A Feasibility Study of Fabrication of Epoxy Based Glass-Coir Fibre Hybrid Composite Laminate and Evaluation of Effect of Moisture on Tensile Strength of the Laminate
-Yogesh More ; Mangesh Urne
Hybrid composites are manufactured by combining two or more fibers in a single matrix. Hybrid composites can be made from artificial fibers, natural fibers and with a combination of both artificial and natural fibers. Hybrid composites can help us to achieve a better combination of properties than fiber reinforced composites. The constituent fibers in a hybrid composite can be altered in a number of ways leading to variation in its properties. The importance of this review can be attributed to the significant aspects of natural fiber based hybrid composites, which are found to be predominantly affected by factors, which include variation in fiber volume/weight fraction, variation in stacking sequence of fiber layers, fiber treatment and environmental conditions. Effect of water absorption on tensile strength of the laminates and increasing tensile strength. Read More...
|
Mechanical Engineering |
India |
1139-1142 |
274 |
Quantum Dot Based Aptamer for Optical Detection of Lead II Ions
-Rahul Cherukuri ; Prashanth Chintalaputti
Lead in the environment causes people to have unusually high blood lead levels leading to lead poisoning. Therefore, it is important to detect low levels of lead in the environment to prevent lead poisoning in humans. Therefore, it is important to detect low levels of lead in the environment to prevent lead poisoning in humans. In this paper, experimental studies have been performed to detect lead at the micromolar and nanomolar concentration range. The detection of lead ions at this low level is achieved using a DNA aptamer and quantum dots optically. Pb2+ ions can be detected using a DNA aptamer known as thrombin binding aptamer (TBA), which folds into a G-quadruplex structure when lead is present in the fluids. The conjugation of a quantum dot (QD) and a gold nanoparticle (AuNP) to the TBA allows for optical detection via Fluorescence Resonant Energy Transfer (FRET). In this aptamer probe discussed herein, the excited quantum dot fluoresces with the DNA. Once the Pb2+ ion interacts with TBA, folding of the DNA occurs causing the fluorescence to reduce through energy transfer to the quencher gold nanoparticle. The quenching efficiency observed with the filter paper probe of the handheld device at 10 nM Pb2+ ions is as high as 60%. Read More...
|
Nanotechnology |
India |
1143-1145 |
275 |
Literature Study of Different properties of Antenna
-Shalini Sharma ; Kuldeep Sharma
The size of the antenna depends the different uses. The use define different properties of the antenna, how an antenna will perform. The patch antenna is one of the best antenna which can be used for different frequency range & bandwidth. The gain & directivity will decide effectiveness of the antenna. To reduce the antenna size, notches are developed. The antenna losses & polarization will decide how the antenna is capable for the long distance communication. Read More...
|
Electronics & Communication Engineering |
India |
1146-1149 |
276 |
Partial Discharge Testing of Insulator using MATLAB Simulink
-Bhushan P Gaurkar ; Umesh G Bonde
In high voltage electrical power system, variety of solid, liquid and gaseous materials are used for insulation purpose to protect the incipient failure inside the power equipment. Among these the solid insulation is widely used for high voltage power equipment in electrical power system. Most of insulating materials are not perfect in all respect and contains always some impurities. The presence of air bubble (void) is one of such impurities in insulating materials and highly undesirable for such type of insulation which causes a local weak zone inside the insulator. Insulation of the power equipment gradually degrades inside the insulator due to collective effect of electrical, chemical and thermal stress. Due to the high voltage stress the weak zone inside the insulator causes the partial discharge (PD) which is known as local electrical breakdown. As a result the insulation properties of such materials are enormously degrades its quality due to the PD. The established model of the flashover of an insulator, whose surface is covered with a moist, conducting layer of pollution, envisages that it develops from the formation and bridging of a dry band by a partial-arc pre-discharge. This pre-discharge is assumed to possess arc characteristics, so that the electric field across the dry band will fall as the partial arc current increases. Observations of insulators which are only lightly polluted, however, show that pre-discharges are of low luminosity and rich in ultraviolet, and resemble the spark leader inception and extension sequence in air gaps. This is because the current limitation by low values of surface-layer conductance can inhibit the transition to an arc at the pre-discharge stage. An alternative model using simplified voltage-current equations is developed to represent these spark properties rather than an arc characteristic. In this work, the simulation of PD activity due to presence of a small cylindrical and cubical void inside the solid insulation material of high voltage power equipment is studied with the MATLAB Simulink platform. Read More...
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Electrical Engineering |
India |
1150-1154 |
277 |
Physico-Chemical Analysis of Bhima River Water near Afzalpur Town
-Navaneet J. M ; Prof. Dr. Shivasharanappa
Water is the prime constituent that supports life. Hence water is also known as blue gold and is one of the precious natural resources on Earth. Next to air, the other important requirement for human life to exist is water hence earliest civilizations were near or all along the bank of rivers. The water scarcity is mostly man made due to excess population growth and mismanagement of water resources like mainly inefficient use of water for agriculture, reduction in traditional water recharging areas and sewage and wastewater discharge into traditional water bodies. As the Bhima river is the only river which is running nearby Afzalpur village, twelve water samples are collected and are analyzed to know whether the Bhima river water is suitable for drinking purpose. The detailed analysis of Physico-Chemical parameters on pH, Total Dissolved Solids, Total Hardness, Alkalinity, Chloride, Dissolved Oxygen, BOD, Phosphate, Nitrate and Sulphate are carried out as per the standard methods. And it was found that Bhima river water is good for drinking purpose, as all the parameters are within the range of permissible standards as per IS10500:1991. Read More...
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Environmental Engineering |
India |
1155-1157 |
278 |
Gas Leakage Detection and Automatic Control System using Arduino
-Chinta Sandeep ; Chaganti Mounica; N. Mounika Reddy; M. Pradhyumna
Liquefied Petroleum Gas (LPG) is ineluctable one in day-to-day life. LPG is used as a fuel in a wide range of applications including heating and cooking appliances, industrial applications, in vehicles and as a propellant and a refrigerant. Gas leakage is one of the major concerns with commercial premises, residential and gas powered transportation vehicles. Leakage of LPG produces hazardous and environmental unfriendly gases which effect human beings and other living creatures. As safety plays a major role in today’s world, it is necessary that good safety systems are to be implemented in places of domestic or industrial. Preventive measure that can be taken to avoid the danger associated with gas leakage is to setup a gas leakage detector at vulnerable locations. The main objective of the proposed Gas Leakage Detection and Automatic Control System (GLDACS) is to provide a solution by designing an automatic system which can detect the leakage of liquefied petroleum gas (LPG) at home and control it by turning off the cylinder knob. At the same time the window of that room gets opened automatically using DC motor and an SMS alert will be sent to the owner of the house using GSM module. Read More...
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Electronics & Communication Engineering |
India |
1158-1162 |
279 |
A Novel Design of Square Microstrip Antennas for Triple Band Operation
-Kishan Singh ; V. V. Patange; M. N. Karanjkar; Namdev D Pergad
A novel design of square microstrip antenna is design for triple band operation. The triple band is achieved by inserting the E-slot in the square patch with the bandwidth of 2.95%, 4.78% and 2.54%. When E-slot is replaced by C-slot there is an enhancement in the all three respective bands with a maximum bandwidth of 3.12%, 8.4% and 2.8%. This antenna may find applications in Microwave Communication system. Read More...
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Electronics & Communication Engineering |
India |
1163-1165 |
280 |
Influence of Process Parameters on Dimensional Accuracy of Fused Deposition Modeling Built Parts
-Sree Varsha Salla ; M. Indira Rani
Additive manufacturing is the process of making objects from 3D CAD model data by joining materials layer by layer. Fused Deposition Modeling (FDM) also known as 3D printing is an additive manufacturing technology used for prototyping, modeling and manufacturing applications. Various process parameters such as layer thickness, extrusion speed, extrusion temperature, part orientation angle, etc., effect the dimensional accuracy of the FDM built parts. In the present work the effect of layer thickness, extrusion speed and extrusion temperature were studied. The factors layer thickness, extrusion speed and extrusion temperature were selected at 2 levels each and thus a full factorial design with 8 experiments and without replications was used. Percentage error in their responses i.e., height, internal hole diameter and outer diameter of the part were determined and ranking was given according to least error in dimension. It was found that different best values or ranking was found according to different responses. Therefore two Multiple Criteria Decision Making methods i.e., Weighted Average Method and Analytic Hierarchy Process were used to find the best values of parameters. From these two methods it was found that experiment 2 with lower layer thickness i.e., 0.1mm, lower extrusion speed i.e., 40mm/s and higher extrusion temperature i.e., 230℃ are preferable. The least preferred is experiment 7 with high layer thickness 0.2, high extrusion speed 60mm/s and lower extrusion temperature 220℃ with regard to effect on dimensional accuracy. Read More...
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Advanced manufacturing systems |
India |
1166-1170 |
281 |
A Novel Parallel A/D Converter using Differential NCL Gates
-M. Bharathi ; D. Leela Rani; S. G. Komala Yadav
An asynchronous circuit is a null conventional logic unit. A new technology so called differential null conventional logic gate is used for realization parallel converter. In this paper, a parallel converter is deliberated for both static NCL and differential NCL style. These have been implemented in an 180nm process with a minimum power supply of 16 V. Power calculation analysis is carried out for in cooperation types of style. From this analysis, it can be clear that the power consumption of a differential NCL style is less than as compared to that of static NCL style. Read More...
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VLSI |
India |
1171-1176 |
282 |
Characterization & Analysis of Coir Fiber and Industrial Ash Reinforced Epoxy Composites
-Prashant Verma ; Mohd Ziaulhaq
Now-a-days, the natural fibers from renewable natural resources offer the potential to act as a reinforcing material for polymer composites alternative to the use of glass, carbon and other man-made fibers. Among various fibers, coir is most widely used natural fiber due to its advantages like easy availability, low density, low production cost and satisfactory mechanical properties. The objective of the this research paper is to predict the stress and thermal analysis of coir/epoxy and industrial ash composite laminates using Finite Element Analysis (FEA) and also find tensile strength, flexural strength and hardness with the Universal Testing Machine (UTM) and Brinell hardness tester. The laminate was made by coir fiber, industrial ash with epoxy as the binding medium by hand lay-up technique, cured at room temperature at the pressure of 30 kg/cm2. This research paper presents the results of mechanical properties of coir fiber reinforced composites. Also, the effect of fiber parameters such as fiber loading on mechanical behavior of coir fiber reinforced epoxy composites. Read More...
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M.TECH PRODUCTION AND INDUSTRIAL ENGINEERING |
India |
1177-1179 |
283 |
Fabrication and Testing of Mechanical Properties of Glass Fiber Reinforced Epoxy Composites
-Syed Arifuddin ; Prof. Bharat. S. Kodli
Now a day’s composites are important class of materials which are available to mankind. So studies of these composites are played a very important role in engineering, material science, metallurgy and solid mechanics applications. The fiber reinforced polymer composites are more widely used in the automotive industry, aeronautical industry and finds many other industrial applications due to their benefits like low cost, noise control, low weight and ease of processing. Glass fiber reinforced polymer composites are one of the most widely used composite materials. Glass Fiber composites are considered to have potential use as a reinforcing material in epoxy polymer based composites because of their good strength, stiffness etc., in present study, mechanical properties for glass fiber composites were evaluated. Here, Glass fiber is the fiber reinforcement and epoxy polymer as a matrix material. Composites were prepared through hand layup technique. Each of the composite plate has a different volume fraction. These composite plates were cut into tensile specimens as per ASTM D3039 and compression specimens as per ASTM D3410 through water jet cutting then subjected to tensile testing and compression testing. Mechanical test i.e. tensile test and compression were performed on UTM and the results are reported. The result showed compressive and tensile strength of glass fiber reinforced epoxy polymer composites and presented the conclusion. Read More...
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Production Engineering |
India |
1180-1183 |
284 |
An Efficient Remote Data Integrity Checking Protocol in the Cloud Storage
-Vidya Chilapur ; Ranjana Nadagoudar
The important application of cloud computing is cloud storage which provides flexible, scalable and high quality of data storage and computational resources to the users. Data owners choose to store their data files into cloud storage servers to reduce the storage cost. But Cloud Storage Servers are not trustworthy; hence data owner needs to check the integrity of the data files stored on the cloud servers. To address this problem a Remote Data Integrity Checking Protocol has been implemented. This Remote Data Integrity Checking Protocol allows data owner to check the integrity of their data files stored in the cloud servers and is secured against forgery attack, Replace attack and Replay attack. This protocol also allows data owner to perform data dynamic operations on the data files stored on the cloud servers. Read More...
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Computer Science and Engineering |
India |
1184-1186 |
285 |
A Heuristic Approach for Traffic Redundancy Elimination
-R. Lydia Jascinth Femila ; M. Nellaiappan; S. Padmavathy
In the present days, solutions of traffic redundancy elimination are mostly sender-based. For the most of commercial solutions of traffic redundancy elimination involve exploitation of two or additional proprietary-protocols which aids at eliminating repetitive traffic connecting them. In our work, we put forward a new receiver-based solution of end-to-end TRE depending on the control of predictions for elimination of redundant traffic among the cloud and its end-users. PK does not necessitate the server to constantly continue the status of client; as a result facilitate cloud elasticity as well as user mobility while protecting continuing redundancy and is competent of eliminating redundancy on basis of content arriving to client from numerous servers. PK contains clear advantages on elimination of traffic redundancy of sender-based, particularly when cloud computation costs as well as buffering requirements are significant. PK imposes extra exertions on the sender only when redundancy is developed, consequently reducing overlay cost. By means of the long-term chunks' metadata information is kept locally, the receiver conveys to the server predictions that comprise chunks’ signatures along with easy- to-verify hints concerning sender's future data. Read More...
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Computer Applications |
India |
1187-1188 |
286 |
Renewable and Sustainable Plastic Material through Hospital Plastic Waste
-Kausalendra Singh ; Kirti Mishra; Dr. Shahanaz Ayub
Bottles and all other forms of plastic create significant environmental and economic problem. They consume massive energy and other natural resources, depleting the environment in various ways. In manufacturing firms, construction industries and products delivery services, use of plastic is a priority to handle and pack things comfortably due to its light weight, cost effectiveness and strength. Plastics cannot be banned as it will result in usage of natural resources like paper, wood at a great extent. It is made up of various chemical elements and is regarded as a highly pestilent material which does not easily degrade in the natural environment after its usage. Waste plastics are made up of Polyethylene, Polystyrene and Polypropylene. Temperature varying between 120ËšC - 160ËšC gives the softening point of plastics. They do not produce any toxic gases during heating of mixure of burnt plastics of hospital waste, concrete and butamin and heat up aggregate at 160ËšC[4]. The main objective of this paper is to discuss the use of damped plastic of hospital (which is burnt on the site of hospital and significance of plastic in terms of cost reduction. Read More...
|
Biomedical Engineering |
India |
1189-1191 |
287 |
Treatment and Electricity Generation using Sugar Mill Wastewater by Double Chambered Microbial Fuel Cell
-Rameshwari Patil ; Dr. Sashikant. R. Mise
Increased human activity and consumption of natural energy resources have led to decline in fossil fuel. The current method of energy production is not compatible with the environment. Therefore, a new treatment approach of using microbial fuel cell (MFC) has been developing recently. The technology of MFC is the latest method for producing electricity from biomaterial by using microorganisms. In this study microbial source uses Sugar mill waste water as a substrate and is inoculated with septic waste for production of the electricity and used to remove the concentration of COD, BOD and Solids. The maximum current, voltage and power produced are respectively 3.71mA,2.97V and 0.663w/m2 at 20th day and 2500mg BOD/L feed concentration. The maximum removal efficiency of COD, BOD, TS and DS is respectively achieved at 69%, 68.3%,48.6% and 50.9% this result shows that the method used is a good alternative for producing energy and treating waste water at the same time. Read More...
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Environmental Engineering |
India |
1192-1194 |
288 |
Analyzing the Solar Potential of University of Petroleum and Energy Studies with the Aid of Geo-Spatial Data
-Divya Singhal ; Ashish Aggarwal; Gowthamraj Srinivasan
Global level holistic approach has been made continuously towards developing alternative source that are reliable, efficient and flexible, wherein to compete with other options for managing a power supply. The call of the hour is to realize an energy system that still lifts people out of poverty and enables economic prosperity. What we need is the right amount of push to increase the ability of our present devices to produce on a larger scale and in a more efficient way and striving towards better and more advanced energy production to satisfy the human needs. With the advancement of technology in the solar and wind energy sector as they are intermittent sources, a lot many innovations have been made towards the need of a deeper and strong energy system for providing a constructive basis for engagement such as interconnected and intelligent multiple Solar Road Panels, making solar and wind power affordable. This will result not only in the economic development of the area but also will improve the lifestyle of the people living there. Thereby, making a quantum leap in energy production and connectivity. The paper aims at presenting one such solution to meet the electrical energy requirements at the campus of University of Petroleum and Energy Studies. Commencing by taking a satellite imagery and then incorporating sketchup 3D for making 3D models of the blocks inside the campus followed by locating solar panels on the roofs at appropriate positions considering all the measures (shadow, tanks, et al.) so as to get solar energy in an efficient amount. Read More...
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gis and remote sensing |
India |
1995-1998 |
289 |
SVM Based Anomaly and Intrusion Detection System in Mobile Ad Hoc Networks
-Dinesh Swami ; Amit Kumar Mishra
Communication Networks forms the backbone of Information Technology era. With the advancements in technology, several types of networks are designed and implemented ranging from Satellite Communication networks to Household Personal Area Networks. A mobile ad-hoc network is a collection of mobile devices (laptops, smartphones, sensors, etc.) that communicate with each other over wireless links and cooperate in a distributed manner in order to provide the necessary network functionality in the absence of a fixed infrastructure. This type of network, operating as a stand-alone network or with one or multiple points of attachment to cellular networks or the Internet, paves the way for numerous new and exciting applications. Due to the ad-hoc architecture of MANETS, these are susceptible to attack by an intruder. Generally, the nodes are battery powered and run on low-cost hardware, thus starts malfunction with aging. In both the cases, the network gets compromised and does not perform as desired. Therefore, Anomaly Detection Systems (ADS) and Intrusion Detection Systems (IDS) are a critical aspect for almost all kinds of MANETs. In this Paper, an approach is developed to tabulate the network data on a regular basis. This tabulated data is examined through an automated procedure to ensure that the network is functioning in the normal way and is unaffected. This is done by designing a Support Vector Machine based Classifier. Initially, the data is manually classified into two classes, the first corresponding to the normal operation of the network and the second corresponding to the malicious operation of the network. The proposed work extends the work of T. Poongothai et. al [1]. By extending the feature set that forms the input to support vector machine. The feature set used previously involves the use data forwarding behavior at the network layer. However, the approach presented in this Paper extends the feature set by including, in addition to the packet forwarding features of the network layer, the node credit score based on the trust measure of the node. The attack / anomaly profile is created by simulation and it turns out that the proposed scheme outperforms the existing approach for anomaly / intrusion detection. Read More...
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Computer Engineering |
India |
1999-2006 |
290 |
A Novel Approach for Blacklist Recommendation System
-Manali Parate ; Prof. Ritu Tandon
Now a day, malicious activities are becoming more active and more frustrating for the internet users. There is a need for a solution which protects user by recommending them a blacklist of current threats. Existing recommendation algorithms i.e. content, collaborative, context based etc. do not provide the fast and efficient recommendations for the problem. This paper proposed a hybrid recommendation algorithm that generates fast and efficient threat’s black list recommendations. If we making a network and configuring security tool. So there is need to block malicious IP addresses and domain name which can affected to the network. We have a log of malicious IP addresses and domain name from central repository that log shared by victim, who is already suffered from this type of activity. Hybrid Recommendation Algorithm provides a list of most deadly attackers. After that we can get black list and block by firewall and other security tools. Read More...
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Computer Engineering |
India |
2007-2011 |
291 |
A Novel Methodology to Detect Dangerous Driving Behaviour Through in Car System
-Shalini M ; Fincy Mol; Saranya TV
In this paper, a scheme of moving-vehicles behavior detection based on accelerometer is proposed. Three-axis accelerometers are installed on vehicles to capture the moving car postures. A fuzzy interpretation system is developed to infer states of vehicle posture, such as normal driving, left/ right turning, departure, accelerate, braking and bumping. Based on the appreciation of vehicle postures, the unsafe driving behaviors of car will be detected. In this paper, the strategy and development of hardware, vehicle stance measurement and dangerous driving behavior inferences are presented and realized. Additionally, a Window APP is developed to offer human machine interface. The system sends message to related user if dangerous driving behavior is detected. The noticed data is stored to cloud for further application. Read More...
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Electronics & Communication Engineering |
India |
2012-2016 |
292 |
Mitigation of Harmonics in Distribution System using Shunt Active Power Filter
-Subhagsinh B. Solanki ; Mr. Mukesh Kumar Lodha
Harmonic distortion problem is the occurrence in power distribution system due to uses of nonlinear loads. Large considerations of these nonlinear loads have the potential to raise harmonic voltage and currents in a power distribution system to unacceptable high levels that can adversely affect the system. For mitigation of this harmonic distortion, shunt active power filter is widely used in a distribution system. We are interested Shunt active power filter using instantaneous active and reactive power (p-q) theory for compensating the load current harmonics and reactive power. The advantage of the p-q theory is that it is instantaneous and it works in the time domain. Read More...
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M.Tech Power System Engineering |
India |
2017-2018 |
293 |
Application of E-Learnin in Kashmir
-Ummar Ahad ; N. A Dar
E-learning is enactment of ICT in Education and Learning. E-Learning has changed the discourse of modern day education. Today via E-Learning not only the contents are delivered but virtual classrooms, web-seminars, examinations, etc. are conducted; also digital repositories and libraries are developed. Mobile Learning is an emerging trend; apps are developed targeted for knowledge seekers using smartphones. While E-Learning is a boomerang around the world and India too is moving forward in this direction, but it is still vague in many parts of India. In Kashmir, a region in India where E-Learning can play a major role considering its geographical, political and financial complications and conditions, E-Learning activities are very limited. This form of modern day learning is less encouraged and people are less aware about its benefits. There is not a proper infrastructure in place as far as E-Learning is concerned. In India, EduSat is a major Satellite based E-Learning initiative started by ISRO in 2004. Although EduSat has been utilized to good effect in many states especially Kerala, Karnataka but in Kashmir it has been near to a failure. The institutes and the government have not been able to take the advantage of EduSat. This paper focuses on scope and applications of E-Learning in the degree colleges of Kashmir and proposes it as a possible solution to adopt to meet the challenges faced by the higher education system. Read More...
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Computer Science |
India |
2019-2021 |
294 |
Particle Swarm Optimization to Control Traffic Lights in Multiple Crossroads
-Praveen Kumar ; Yamini Chauhan
Since the number of vehicles comes to market quickly, most urban communities confront the major issue of traffic blockage, particularly around surge hours. Amid this period, traffic lights on real street passageways need to oversee traffic streams and diminish vehicle deferral and outflows, while giving open doors for vehicles in side lanes to enter or cross the real street. Since the nature of traffic in a city is fundamentally controlled by traffic lights, the traffic stick, thus the aggregate holding up time of conductors, can be diminished if appropriate setting on traffic lights can be received. Hence, it is an essential issue to locate a decent procedure which productively sets up the traffic light on all crossing points. At the end of the day, the fundamental worry of the analysts is to limit the general waiting time of all vehicles on traffic organize. This paper proposes a novel method to reduce the average waiting time of vehicles in the traffic using canonical PSO algorithm with 2 crossover roads. We will propose the optimal timing plan for given set of vehicles as input. Read More...
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Computer Science |
India |
2022-2024 |
295 |
A Review to Study the Effect on Engineering Properties of Soil by using the Marble Dust Powder & Wood Sawdust Ash
-Vivek ; Vinod K. Sonthwal
Stabilization of soil is a research area that has not only troubled researchers but also kept them curious throughout the history of modern engineering science. Numerous methods have been tried to impart strength to a soil that may be used as a foundation or an underlying layer on a Highway. Soil, being a complex material in itself, becomes even more difficult to deal with when its bearing strength is low which not only puts the superstructure that is to be laid above it in danger but may also have long term consequences in terms of life and property. This paper aims at exploring the investigations and researches that have been done to improvise the soil properties by mixing it with varying percentages of waste materials. A wide range of waste materials have been used in soil stabilization in the industry and this paper will aim at reviewing them in general and wood sawdust ash and marble dust powder in particular. Read More...
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Geo Technical Engineering |
India |
2024-2025 |
296 |
Technical Report of Generating Power from Low Thermal Energy from Screw Expander Power Generator
-Rajendra Prasad J ; Kannan Rajagopalan; M V Rajesh
Since the technology of conventional boiler is developed in the year 1867, efficient/complete usage of steam produced in boilers is a great task & usage of steam containing low temperature & pressure is a major problem. Though the quantity of steam is low at the moment, in a long run Billions of dollars are wasted & being wasted since past 150years, more over fossil fuels are not properly addressed for effective utilization of energy. Renewable energy utilization, saving heat/thermal energy wasting available fossil fuels & other combustible fuels is a major problem. Even though waste heat recovery is implemented, steam containing low grade temperature, pressure is not being utilized properly. The drive to save energy and reduce emissions and industrial need to cut costs and improve energy efficiency, screw expander are invented to effectively deal with the technological issue of utilizing low grade waste energy recovery which has not been satisfactorily addressed by traditional methods. These are robust & can process wet steam, converting mechanical energy into clean electrical energy. Read More...
|
Energy |
India |
2025-2029 |
297 |
Study the Working and Design of Cam Shaft of Six Stroke Engine
-Shantanu Deelip Sonar ; Rohan Rajkumar Katariya; Yash Sumatilal Bothra
To study the working of six stroke engine by using single cylinder four stroke engine. In this project we have analyse the working of four stroke engine by dismantling the engine. After observation we made the cam design to change the four stroke engine to six stoke. Cam design was made through cam and roller follower displacement diagram. This paper dwelt the information about crank and cam shaft ratio. Read More...
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Mechanical Engineering |
India |
2030-2031 |
298 |
Studies on Tribological Properties of Al7075 Reinforcement with Silicon Carbide and Fly ash
-Nagaraj Malikeri ; Sunil J Mangshetty
Two phases namely a matrix and a reinforcement phase constitute composite materials. Most of studies shows that the material used for components should possess better tribological properties. In this paper four samples were prepared by using stir casting. First sample is Al7075 with 2% SiC and 8% FlyAsh, second sample consist of Al7075 with 4% SiC and 6% FlyAsh, third sample consist of Al7075 with 6% SiC and 4% FlyAsh, and the fourth sample is of Al7075 with 8%SiC and 2% Fly Ash. Wear is increased when Silicon Carbid and FlyAsh is added to Al7075. Microstructure is also studied using Scanning Electron Microscope (SEM) to understand the wear. Al7075 with Silicon Carbide and Fly Ash finds application in automobile industries. Read More...
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Production Engineering |
India |
2032-2036 |
299 |
Multi-Level Inverter with Reduced Switches for Electrical Vehicle Applications
-Siddharth Pachpor ; Subhankar Dutta
In this article, a new basic unit for cascaded multi-level inverter is proposed. This inverter when cascaded in further units is able to increase the number of output voltage levels and reduces the number of power electronic devices. The comparisons show that the proposed topology needs fewer DC voltage sources and power switches, less variety of the magnitude of DC voltage sources, and smaller amounts of blocked voltage by switches. The operation and performance of the proposed multilevel converter have been evaluated with the experimental results. Read More...
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ELECTRICAL AND ELECTRONICS ENGINEERING |
India |
2037-2039 |
300 |
Review on Heat Transfer Through Absorber Plate of a Solar Air Heater with Artificial Roughness
-Navin Kumar ; Rohit Kumar Choudhary; Suresh Kumar Badholiya
Solar air heaters are being used to heat the air with the use of renewable energy source and thus preventing the environment. Artificial roughness when developed on the surface of the absorber plate, the heat transfer through the absorber plate in air flowing over it improves. Several experimental and numerical studies have been performed by the researchers to improve the performance of the solar air heaters by this artificial roughness. The objective of this paper is review the previously done work in this field so that further scope of work in the enhancement of heat transfer through absorber plate could be found. The review results show that the researchers have mainly worked upon the type of the roughness element, their arrangement and the physical dimensions of the absorber plate and the roughness elements. Several studies reveals the heat transfer enhancement and shown the variation in Nusselt number with the change in Reynolds number. It is found that the CFD technique is being mostly used for the analysis and simulation purpose. The CFD results have also been validated by the experimental results. Read More...
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m.tech thermal engineering |
India |
2040-2042 |