E-ISSN 22498974    
  International Journal of Advanced Engineering Research and Studies

  -An Open Access Peer Reviewed e-Journal



IJAERS/Vol. II/Issue IV/July-Sept., 2013/01-03

Authors: Santosh T. Ghutukade, Dr. Suresh M. Sawant

Assembly Line production is one of the widely used production systems. The problem of Assembly Line Balancing deals with the distribution of activities among the workstations which lead to the maximum utilization of human resources and facilities without disturbing the work sequence. Assembly lines are traditional and still attractive means of large-scale production. Since the time of Henry Ford, several developments have been taken place in production systems which changed assembly lines from strictly paced and straight single-model lines to more flexible systems as parallel work stations, customer-oriented mixed-model and multi-model lines, U-shaped lines and unpaced lines with intermediate buffers. In this paper a problem of line balancing in cashew nut shelling machine production has been discussed using ranked position weighted method.


IJAERS/Vol. II/Issue IV/July-Sept., 2013/04-07

Authors: V.S.Ganachari, Prof.M.V.Kavade, Dr.S.S.Mohite

This paper presents the numerical models for the analysis of diesel spray characteristics at the secondary break up stage in a gas turbine burner. Spray combustion studies are important to investigate flame stability behavior at different load conditions in order to have continuous flame and also better prediction of pollutants formation. Spray consists of two fundamental and consecutive steps: the primary breakup and the secondary breakup. secondary breakup is modeled by Cascade Atomization and Breakup model (CAB). The trajectory and velocity of generated fuel droplets is determined by Lagrangian Particle Tracking.


IJAERS/Vol. II/Issue IV/July-Sept., 2013/08-10

Authors: Pranesh B. Bamankar, Dr. S.M. Sawant

Submerged arc welding (SAW) process is an important component in many industrial operations. The research on controlling metal transfer modes in SAW process is essential to high quality welding procedures. Quality has now become an important issue in today’s manufacturing world. Experiments are conducted using submerged arc process parameters viz. welding current, arc voltage and welding speed (Trolley speed) on mild steel of 12 mm thickness, to study the effect of these parameters on penetration depth. The experiments are designed using Taguchi method (with Taguchi L9 orthogonal array) considering three factors and three levels.


IJAERS/Vol. II/Issue IV/July-Sept., 2013/11-13

Authors: Nitin T Patil, Dr. S M Sawant

At the time manufacturing a new product, there are always new challenges; especially when one tries to work on unit production line. Generally at R&D workshop such unit production lines are exist because variety of project prototypes is present there to manufacture and hence no definite or standard production line can be establish. The shop management relates with application of various techniques that support better utilisation of available resources, floor space achieving safe working environment. Hence to achieve these objectives of shop management one must need to provide attention towards indirect manufacturing of such a new product so that indefinite, nonstandard production line will get utilised more effectively.


IJAERS/Vol. II/Issue IV/July-Sept., 2013/14-16

Authors: S. R. Patil, C. A. Waghmare

This paper presents the influence of welding parameters like welding current, welding voltage, welding speed on ultimate tensile strength (UTS) of AISI 1030 mild steel material during welding. A plan of experiments based on Taguchi technique has been used. An Orthogonal array, signal to noise (S/N) ratio and analysis of variance (ANOVA) are employed to study the welding characteristics of material & optimize the welding parameters. The result computed is in form of contribution from each parameter, through which optimal parameters are identified for maximum tensile strength. From this study, it is observed that welding current and welding speed are major parameters which influence on the tensile strength of welded joint.

IJAERS/Vol. II/Issue IV/July-Sept., 2013/17-21

Authors: Jakhale Prashant P, Jadhav B. R.

In most of the machining operations the main objective is optimization of surface roughness. The higher value of surface roughness generates on the machining parts and due to rework or scrap results into increase in cost and loss of productivity. Surface roughness is a major factor in modern Computer Numerical Control (CNC) turning industry. Lots of optimization researches for CNC finish turning were either accomplished within certain manufacturing purposes, or achieved through various equipment operations. Therefore, a general optimization of surface roughness is deemed to be necessary for the most of manufacturing industry. In this stage, an attempt has been made to investigate the effect of cutting parameters(cutting speed, feed rate, depth of cut) and insert geometry(CNMG and DNMG type insert) on surface roughness in the high turning of alloy steel. The experiments have been conducted using L9 orthogonal array in a TACCHI lathe CNC turning machine. Turning process carried out on the high alloy steel(280 BHN).The optimum cutting condition was determined by using the statistical methods of signal-to-noise (S/N) ratio and the effect of cutting parameters and insert type on surface roughness were evaluated by the analysis of variance (ANOVA).

IJAERS/Vol. II/Issue IV/July-Sept., 2013/22-27

Authors: Y.B. Kumbhar, C.A. Waghmare

Tool wear and surface roughness prediction plays a significant role in machining industry for proper planning and control of machining parameters and optimization of cutting conditions. In this paper, Taguchi approach is used to find optimum process parameters for turning while semi hard machining of hardened EN31 alloy steel. A L9 orthogonal array, signal-to-noise ratio and analysis of variance (ANOVA) are applied to study performance characteristics of machining parameters (cutting speed, feed rate and depth of cut) with consideration of surface finish and tool life. The conclusions revealed that the feed rate was the most influential factor on the surface roughness and tool life. Experimental results are provided to illustrate the effectiveness of the proposed approach

IJAERS/Vol. II/Issue IV/July-Sept., 2013/28-30

Authors: Prof B.R. Jadhav, Santosh J Jadhav

Casting production involves various processes which include pattern making, moulding, core making, melting pouring, shell breaking, shot blasting etc. It is almost impossible to produce defect free castings. Occurrence of the defect may involve single or multiple causes. These causes can be minimised through systematic procedure. The paper represents procedure to analyse and minimise casting defect Cold shut in automobile cylinder block of grey cast iron Grade FG150. Gaiting systems are not always responsible for the defect occurrence; this paper represents the defect reduction by controlling alloy composition and pouring temperature. The seven quality control methodology is used to analyse and reduce defects which includes check sheet, pareto analysis, cause effect diagram, flow chart, scatter diagram, histogram and control chart.

IJAERS/Vol. II/Issue IV/July-Sept., 2013/31-33

Authors: Avinash Ashokrao Uthale, Dr. S.S. Gawade

There are many machines and mechanical units that under varying circumstances make it desirable to be able to drive at a barely perceptible speed, an intermediate speed or a high speed. Hence an infinitely variable (step less) speed variation in which it is possible to get any desirable speed. Some mechanical, hydraulic, drives serve as such step less drives. However the torque Vs speed characteristic of these drives does not match torque at low speeds. As per requirement of operation various speeds required to be maintain for maintaining that various speeds no of speed controls are provided that are complicated to operate instead of it only one knob control provided for getting various speed ranges with help of single ball traction drive.

IJAERS/Vol. II/Issue IV/July-Sept., 2013/34-36

Authors: Vikrant C. Gaikwad, Dr. Suresh M. Sawant

Finite Element Method reduces the degrees of freedom from infinite to finite with the help of meshing. Meshing is the most important step in finite element analysis. In meshing, mesh quality and mesh connectivity are important consideration for further analysis. In Free-Free run analysis six rigid modes indicate al1 the parts in the assembly are properly connected to each other. The mesh quality may have considerably on the analysis in terms of the quality of the solution and the time required for it. In process, meshing is done with HYPERMESH software and solution is acquired using NASTRAN solver.


IJAERS/Vol. II/Issue IV/July-Sept., 2013/37-39

Authors: Dushyant Tanna

The problems arising from the study of a variety of labeling techniques of the elements of a graph or of any discrete structure form one such potential area of challenge. Labeling of graphs is very useful in networking, optimization and some new concepts like Cross – Entropy. Double Triangular snake labeling is earning lots of famine these days.


IJAERS/Vol. II/Issue IV/July-Sept., 2013/40-45

Authors: Amandeep Kaur, Satnam Kaur, Tajinder Singh

Speech reorganization and processing is a major area of research. This process depends on different factors on which the speech processing and reorganization depends. This paper presents a study of military applications of advanced speech processing technology which includes review and assessment of current efforts in military applications of speech technology, identification of opportunities for future military applications of advanced speech technology. In this process, Emulating emotion and empathy is on its way right now. Currently, most consultants of artificial intelligent customer response systems for 'call centers' advise that the voice on the other end if coming from a machine, should be easily identifiable by the human calling in as a computer systems with voice recognition features, because humans do not like to be tricked, when they find out, it makes them upset. So the armature users instead of the professionals have ability to do this now. In this paper we are describing the Current effort in military applications of speech technology, which includes narrowband (2400 b/s) and very low-rate (50-1200 b/s) secure voice communication, integration of voice as well as data in computer networks, speech recognition in fighter aircraft, military helicopters, battle management, and air traffic control training systems & noise and interference removal for human listeners.


IJAERS/Vol. II/Issue IV/July-Sept., 2013/46-48

Authors: Dushyant Tanna

Harmonious labeling of graph is getting lots of application in social networking, rare probability event and many more. Here we will discuss about some harmonious labeling techniques and some important theorems and examples based on those theorems.


IJAERS/Vol. II/Issue IV/July-Sept., 2013/49-51

Authors: Dinesh Pargunde, Prof. Dhanraj Tambuskar, Swapnil S. Kulkarni

Several technical challenges exist with casting technology yet it can be used to overcome this problem. Achieving a uniform distribution of reinforcement within the matrix is one such challenge, which affects directly on the properties and quality of composite material .In the present study a modest attempt would be made to develop Aluminium based silicon carbide particulate MMCs with an objective to develop a conventional low cost method of producing MMCs and to obtain homogenous dispersion of ceramic material. To achieve these objectives two step-mixing method of stir casting technique has been proposed and subsequent property analysis has been made. Aluminium (98.41%) and SiC(320-grit) has been chosen as matrix and reinforcement material respectively. Experiments are planned for conducting varying weight fraction of SiC (in the steps of 5%) while keeping all other parameters constant. The results would be evaluated by Tests-Hardness, Impact (including micro-structure) for this ’development method’. The trend of hardness and impact strength with increase in weight percentage of SiC would be observed and recommendation made for the potential applications accordingly.


IJAERS/Vol. II/Issue IV/July-Sept., 2013/52-56

Authors: H. R. Prajapati, A. Bhogayata and Dr. N. K. Arora

This experimental study is intended to the durability aspects of fly ash and metallized polymer plastic waste based geopolymer concrete prepared with sodium hydroxide (NaOH) and sodium silicate (Na2Sio3) as alkaline activators. The performance of geopolymer concrete was studied, using test of oxygen permeability and water sorptivity. In oxygen permeability test ingress of gases and water vapor occurs while in water sorptivity test ingress of water and hazardous liquid occurs. Experimental work was done on fly ash and waste metallized polymer plastic based geopolymer concrete by different sodium silicate to sodium hydroxide ratio 1, 2 and 3, different molar content of sodium hydroxide 8M, 12M and 16M , percentage of metallized polymer plastic waste 0%, 0.5%, 1.0% and 1.5% and cured with hot air at 100°C for 24hr. Result shows oxygen permeability and water sorptivity decreases with increase in molar content of sodium hydroxide, ratio of sodium silicate to sodium hydroxide and metallized polymer plastic which is favorable for geopolymer concrete.


IJAERS/Vol. II/Issue IV/July-Sept., 2013/57-58

Authors: Milind L. Shrirao, Prof.Gajanan Thokal, Swapnil S. Kulkarni



IJAERS/Vol. II/Issue IV/July-Sept., 2013/59-62

Authors: Rashmikant A Madaliya*, Sagar I Patel

There is a considerable amount of literature about image denoising using fractal image coding methods. Some new ideas where also reported using wave late domain. In this paper we propose a mix wavelet-fractal denoising method. Using a non sub-sampled over-complete wavelet transform. We present the image as a collection of translation invariant copies in different frequency sub-bands. Within this multiple representation we do a fractal coding which tries to approximate a noise free image. The inverse wavelet transform of the fractal collage leads to the denoised image. Our results are comparable to some of the most efficient known denoising methods.


IJAERS/Vol. II/Issue IV/July-Sept., 2013/63-65

Authors: Sanjay N. Lahoti, Prof.M.D.Nadar, Swapnil S. Kulkarni



IJAERS/Vol. II/Issue IV/July-Sept., 2013/66-68

Authors: Jagtap S.P.*, Chhapkhane N.K.

Many components fail during operation due to the phenomenon of stress concentration. In this paper the experimental and numerical studies were conducted to investigate the stress concentration around a cutout in composite panel. By the application of PhotoStress coating material, the stress measurements were performed in the vicinity of the notches. The stress at the edge of the notch is peak stress into the composite panel. These peak stresses were divided by the corresponding nominal far field stresses to obtain the stress concentration factors for specimen loaded in compression.
A mesh of quadrilateral elements was used to model specimen with double notches. The two dimensional finite element simulations were performed using ABAQUS general-purpose computer program. The experimental results of peak stress or maximum stress were compared with finite element solutions performed on the specimen geometries and loadings similar to the ones used in the experiments. The stresses were used to calculate the stress concentration factors.


IJAERS/Vol. II/Issue IV/July-Sept., 2013/69-72

Authors: Pandurang D. Jankar, Dr.Mrs.Sushma S. Kulkarni

Madgyal is a small village located at distance of 25 Kms from Jath city. It lies between North latitude 17°02’56.94” and East longitude 75° 13’8.14”. Some measures have been adopted to recharge the ground water resources. Hence it is planned to take such engineering and biological measures which will direct this extra runoff to ground water storage. The most significant feature of the work is that if such technologies are developed and adopted at larger scale in rural areas, it will prevent thousands of villages of the country from water supply by tankers. Geographic information system (GIS) an essential tool for watershed planning and management tasks. For the GIS mapping drainage network, topography, flow path of water are to be easily locate. In the Madgyal some measures have been adopted to recharge the ground water resources, but it has been found that these measures don’t work with full capacity in some cases. In the Madgyal watershed area, demand of water for agriculture and drinking purpose is increasing rapidly depleting water resources coupled with overpopulation. Efforts are made to divert large amount of rainwater to recharge ground water resources.

IJAERS/Vol. II/Issue IV/July-Sept., 2013/73-80

Authors: K.Ambiga,Dr. R. Anna Durai

An attempt has been made to understand the ground water quality by using water quality index in and around Ranipet area of Vellore District. It is a technique of rating water quality, is an effective tool to assess spatial and temporal changes in ground water quality. Thirty five groundwater samples were collected from open and tube wells during the Monsoon and Post Monsoon season in the year 2012. This was done by subjecting the 35 groundwater samples collected to comprehensive physico-chemical analysis using standard methods of analysis. From the data obtained, the water quality index was calculated by adopting the method developed by Tiwari and Mishra. Water quality index rating was carried out to quantify overall ground water quality status of the area. For calculating the index, the following 9 parameters have been considered such as pH, Total Dissolved Solids, Total Hardness, Calcium, Magnesium, Sulphates, Chlorides, Fluorides, and Nitrates. The average values of water quality index of the samples were found in the value of 142.59 in monsoon season while it was 115.4 in post-monsoon season. The higher concentration of dissolved solids during post monsoon samples exhibits poor quality of water as compared to Monsoon season. It may be due to more seepage and movement of ground water during post-monsoon.


IJAERS/Vol. II/Issue IV/July-Sept., 2013/81-83

Authors: Raman Kamboj, Mr. Ram Avtar

Load forecasting is a very important factor for the electric industry in the deregulated economy. It is having many applications including energy purchasing and generation, load switching, contract evaluation, and infrastructure development. Many of mathematical methods have been developed for load forecasting. Load forecasting is the technique by using of which we can predict the electrical load. In case of deregulated market, the generating company has to know the market load demand for generating near to accurate power. If production will not be sufficient to fulfill the demand, there would be the problem of irregular supply and if there is the case of excess generation the generating company will have to bear the loss. To overcome this problem there is a technique named as neural network techniques, which have been recently suggested for short-term load forecasting by a large number of researchers. In this paper the applicability of this kind of models is discussed. This paper presents the basic idea behind load forecasting. There are many number of model suggested for the same, but the large variation and lack of comparisons make it difficult to directly apply proposed methods. It was concluded that a comparative study of different model types seems necessary. Several models were developed and tested on the real load data of a Finish electric utility. In this paper back propagation neural networks approaches to load forecasting will discuss.

IJAERS/Vol. II/Issue IV/July-Sept., 2013/84-86

Authors: Jasbir Singh, Mr. Ram Avtar Jaswal

In this paper, the performance of the washing unit of paper mill has been evaluated. For this Boolean function technique and algebra of logics are used. Reliability of the system under consideration is evaluated in two situations firstly when failures follow Weibull time distribution and second when failures follow Exponential time distribution. M.T.T.F. and failure rate of system under consideration are also calculated

IJAERS/Vol. II/Issue IV/July-Sept., 2013/87-90

Authors: Akula Ramakrishna, Nihal A Siddiqui, P Sojan Lal

Liquefied Petroleum Gas (LPG) cylinders in India are designed, manufactured, tested and certified as per Indian Standard, IS 3196. These cylinders undergo various tests to get mandatory Bureau of Indian standards (BIS) certification for use in market. Acceptance and hydro-tests are two important destructive tests on newly manufactured cylinder lot to know various critical parameters of LPG Cylinder material viz. yield strength, tensile strength percentage elongation, nominal hoop stresses, burst pressure and volumetric expansion. All these critical parameters are related and correlations can be established among these parameters. An attempt has been made in this paper to study 40 domestic LPG cylinders acceptance and hydro-test data to establish correlations among these critical parameters and observed meaningful relations can be established among these variables. However, few factors like raw material selection, heat treatment process parameters, cylinder manufacturing methods, welding process parameters, sample preparation methods can affect the end results of these critical parameters

IJAERS/Vol. II/Issue IV/July-Sept., 2013/91-94

Authors: D.P. Kapoor, Prof. S.R. Zaveri, Prof. Y.L. Yenarkar

The concept of Product design is an approach of designing a new product or suggesting modifications for existing product. The objective is to review the existing product, evaluate it for functional as well as value added features. In this process the product may be redesigned to achieve the modified value added features. In this work, wheel chair is considered as a product. The purpose of this work is to develop the manually operated wheel chair based on review of the existing wheelchair function and modify as per need of disables. The information is gathered from hospital survey, questionnaire prepared for direct user, discussion and consultation with medical practitioner to list out the desirable function a wheelchair. The desirable functions are identified and model of suggested features is developed using CATIA software.

IJAERS/Vol. II/Issue IV/July-Sept., 2013/95-98

Authors: R R Chavan* & D B Kulkarni

This paper reports on an experimental program to investigate the effect of using copper slag as a replacement of fine aggregate on the strength properties. Copper slag is the waste material of matte smelting and refining of copper such that each ton of copper generates approximately 2.5 tons of copper slag. Copper slag is one of the materials that is considered as a waste which could have a promising future in construction Industry as partial or full substitute of aggregates. For this research work, M25 grade concrete was used and tests were conducted for various proportions of copper slag replacement with sand of 0 to 100% in concrete. The obtained results were compared with those of control concrete made with ordinary Portland cement and sand.

IJAERS/Vol. II/Issue IV/July-Sept., 2013/99-101

Authors: Mirajkar Pradnya P., Sachin D. Ruikar

Image fusion is defined as the process of combining two or more different images into a new single image retaining important features from each image with extended information content. There are two approaches to image fusion, namely Spatial Fusion and Transform fusion. In this paper, we propose an image fusion approach based on Stationary Wavelet Transform (SWT). Stationary Wavelet Transform (SWT) is firstly applied with the original image to get the edge image information both in level 1 and level 2. Next, both edge images are fused to get a complete edge image using Spatial Frequency Measurement, which is compared with a few simple fusion Methods.

IJAERS/Vol. II/Issue IV/July-Sept., 2013/102-103

Authors: Biraj Patel, Dr. Dipti Shah

Existing meta search engines use method for displaying search result on screen with or without stop words. They basically send request for links on individual search engine and retrieve ambiguous results and display aggregate result on screen based on own rank assigned. In existing meta search engines there is no availability of database for stop words management. There is a need to have role of database for dynamic management of stop words. This paper discusses the need of database for storage of stop words in a meta search engine and discusses a model, which allows administrator to manage stop words dynamically.

IJAERS/Vol. II/Issue IV/July-Sept., 2013/104-106

Authors: Viraj H. Barge, Dr. Prof. S.S.Gawade, Mr. Vinaay Patil

Cylindrical pressure vessels or vertical reactant column are commonly used in industry to carry both liquids and gases under high pressure & temperature. Pressure vessels are used in a variety of applications in both industry and the private sector. Examples of pressure vessels are diving cylinder, distillation towers, autoclaves, and many other vessels in oil refineries and petrochemical plants. The design problem in the pressure vessel is that the holes at the bottom of pressure vessel which controls the mass flow rate are the weak regions structurally & thermally. The project focuses on optimizing the location of these holes for maximum structural safety.

IJAERS/Vol. II/Issue IV/July-Sept., 2013/107-111

Authors: D. P. Mishra, Prof. Ramesh Kumar

Chhattisgarh is a rice-producing land that is why it is called the 'rice bowl'. Farmers here are not inclined to cultivate crops other than paddy as they are completely dependent on the rains. Till now Chhattisgarh comes under a mono-crop belt. Only one fourth to one fifth of the sown area was double cropped so in order to improve the production proposed system will become helpful for farmers. In proposed system we are embedding wireless moisture sensors at different locations in field in order to check the moisture level of earth as Wireless sensor networks (WSN) are increasingly been used in precision agriculture for years. They are used in convergence with other technologies like the Global Positioning System (GPS), Geographic Information Systems (GIS), miniaturized computer components, automatic control, remote sensing, mobile computing and advanced information processing and telecommunications for modern precision agriculture monitoring. WSN offers several advantages; these includes suitability for distributed data collecting and monitoring in tough environments, capable to control an economical way of climate, irrigation and nutrient supply to produce the best crop condition, increase the production efficiency while decreasing cost and provide the real time information of the fields that enable the farmers to adjust strategies at any time. This paper presents the basic design on the development of WSN for paddy crop monitoring application. The proposed WSN system will be able to communicate each other with lower power consumption in order to deliver their real data collection. The main objective of the new design architecture is to cater the most important and critical issue in WSN, that is power consumption. The design will attempt a sensor node board systems consist of a low power microcontroller so called nano-Watt technology, low-power semiconductor based or MEMS sensors, Zigbee™ IEEE 802.15.4 wireless transceiver and solar energy source with optimal power management system.

IJAERS/Vol. II/Issue IV/July-Sept., 2013/112-115

Authors: M.N.Buradkar, Dr. D.V. Bhope, S. D. Khamankar

This research work deals with the stresses in the weldment of an arc welded lap-joint under static load condition. For the analysis, Finite Element method along with experimental techniques is used. A single arc welded lap joint subjected to transverse static load is considered for the analysis. The stresses in the weldment are evaluated by varying the gap between the parent plates which may occur during manufacturing. The Finite Element results are compared with Photoelastic analysis. The breaking strength of the weldment is also determined analytically and experimentally to verify F.E. results. It is observed that the magnitude of stress in the weldment varies with respect to gap between the parent plates.

IJAERS/Vol. II/Issue IV/July-Sept., 2013/116-117

Authors: Biraj Patel and Dr. Dipti Shah

Existing meta search engines display search result on screen with no role of indexing. They basically send request for links on individual search engine and retrieve results and display aggregate result on screen based on score. In existing meta search engines there is no availability of index database for search process. In new proposed model the concept index database for link management is introduced. This paper discusses the need of updation of index database for link management in a meta search engine and discusses a model, which allows user to get search results from index database for input search text. A new model of the meta search engine comparatively retrieves speedily aggregate search results according to assigned rank in database.

IJAERS/Vol. II/Issue IV/July-Sept., 2013/118-121

Authors: G. Vijayaraghavan, M. Jayalakshmi

Chemical Process Plant as a complex system requires good scientific knowledge on different issues including Process Safety Analysis (PSA). Fuzzy logic is the collective name for “Fuzzy set analysis” and “Possibility theory”, able to use random or approximate data in the Process Safety Analysis. This paper explains the impact of fuzzy set theory for basic tools used in Process Safety Analysis. It also discusses the sources and types of uncertainties encountered in PSA and also methods to deal with them. There are different methods to improve the quality of the PSA, for example sensitivity analysis, expert systems, statistics and fuzzy logic.Fuzzy logic is one of the promising methods for reliability assessment. The traditional PSA tools like Fault Tree analysis (FTA) and Event Tree (ET) were trimmed and free of uncertainty by the application of Fuzzy logic. Now these tools provide correct process risk level and safety assurance. The mathematical model developed with fuzzy logic enables the identification of safety barriers implemented to prevent the top event from taking place and to control the effects.

IJAERS/Vol. II/Issue IV/July-Sept., 2013/122-125

Authors: Deepali S Phadatare, Prof. J K Shinde

Coal is the major source of energy for India and it contributes to more than 42% of total energy consumption. The energy dependence on coal will also continue in long term future. Hence it is important to study coal and technologies that generate energy utilizing coal. India has around 285.86 billion tonnes of coal reserves but only 118 billion tonnes of it are proven resource. India’s current domestic production of coal is 0.55 billion tonnes and with this it is expected that the proven resource will last for only 200 years more with current consumption rate. Hence it is required to optimize the usage of coal and make the technologies more efficient and environment friendly. Coal gasification is one such technology which has potential to enhance the efficiency of the current power generation technology by atleast 10-15 % and reduce the pollutant emission by atleast by 15%. Hence coal gasification is important technology which should be developed for usage of Indian coal.

IJAERS/Vol. II/Issue IV/July-Sept., 2013/126-127

Authors: Satish Navnath Pawar, Dr.Prof. M.M. Mulkutkar, Swapnil S. Kulkarni

Fatigue is the prominent mode of failure for components subjected to cyclic stresses. Although, traditionally, the damages are attributed to wear and lubrication sources, fatigue is responsible for a significant number of such applications. The cyclic stresses/ deformations have mainly two origins: load and temperature. High temperature fatigue (which includes creep) is also present in some damaged pistons. Also thermal mechanical fatigue is present in other damaged pistons. Shot peening is one of the process to enhance fatigue life of components & there is scope in study effect of shot peening on fatigue life of piston. Use of CAE software is being explored for determining the residual stresses and the plastic strain induced due to the impinging steel balls over the test component.

IJAERS/Vol. II/Issue IV/July-Sept., 2013/128-129

Authors: Sandeep Saini, Vijay Garg

The output characteristics of Photovoltaic array is nonlinear and is influenced by solar irradiation level, ambient temperature, wind speed, humidity, pressure etc. A major challenge in using a PV source is to tackle its nonlinear output characteristics, which vary with temperature and solar irradiation. The characteristics get more complicated if the entire array does not receive uniform solar irradiation, as in partially shaded conditions, due to passing by clouds, neighboring buildings, towers, trees and telephone poles, resulting in multiple peaks in the P–V characteristics. The presence of multiple peaks reduces the effectiveness of the existing maximum power point tracking (MPPT) schemes, due to the inability to effectively discriminate between the local and global maxima in the P–V characteristics. It is pertinent to track and find the optimal operating voltage of PV arrays in order to increase the efficiency of PV generators.

IJAERS/Vol. II/Issue IV/July-Sept., 2013/130-131

Authors: Mr. Satavekar Surajkumar Ramchandra, Dr. Prof. Dr. R.G. Todkar
Swapnil S. Kulkarni

The Plastic-Metal hybrid composite technology, complimentary to metals, used for automotive structural applications where stiffness, impact resistance and functional integration are combined to form a cost effective, lightweight solution. The use of Plastic/ composite structures as a means to reduce weight while maintaining or improving performance of automotive roof structure. The metal is used where the high stiffness and strength can be exploited, while the plastic composite gives a balance of stiffness and impact resistance and enables functional integration through the formation of complex shapes in the molding process. This work would address the baseline of compliance norms while developing the alternative


IJAERS/Vol. II/Issue IV/July-Sept., 2013/132-133

Authors: Mr. Balasaheb Gadade, Prof. Dr. R.G.Todkar,Mr. Swapnil S. Kulkarni

The suspension control Arm (lower), being an intermediary with the suspension system, has a important function to cope with. The wheel base on one end and the connection to the chassis member exposes the part to high stresses while performing its function. This research work shall attempt CAE analysis over the existing model of the passenger car for identifying the problem areas while deliberating on design alternatives to suffice the function. This would help the design team to redesign the part for safe operation while aiming for adequate strength for addressing the function.

IJAERS/Vol. II/Issue IV/July-Sept., 2013/134-137

Authors: Dattatray Dilip Giripunje, Prof. Dr. Vilas B. Shinde, Swapnil S. Kulkarni

The exhaust sub-system is exposed to high temperatures as they form the passage for the hot gases released upon combustion of fuel to be released to the atmosphere. While there are other prominent areas to be focused during design phase, the uniform distribution of heat over the entire exhaust system (including the silencer) is of importance for ensuing enhanced life of the elements in the sub-system. The problem identified for this proposed dissertation work is to assess the heat flow during the passage of hot gases and design the passage such as to minimize the harmful effects of hot-spots over the length of the silencer, especially at the front end mating with the exhaust manifold.

IJAERS/Vol. II/Issue IV/July-Sept., 2013/138-140

Authors: Yogesh Tanajirao Padwal, Mr. Satish M. Rajmane, Swapnil S. Kulkarni