E-ISSN 0976-7916
  Journal of Engineering Research and Studies
                                                                             -An Open Access Peer Reviewed e-Journal

 

 
 

QUALITY ASSURED MAINTENANCE MANAGEMENT IN PETROCHEMICAL INDUSTRY

 

Authors: N.K.K.Prasanna, Tushar. N. Desai

 

JERS/ Volume II/ Issue III/July-September, 2011/1-5

ABSTRACT
In today’s world of cut-throat competition, the equipment & system in petrochemical industry are made to operate under a number of extreme operating conditions. The resulting stresses can affect the working-life of the equipment. Increasing the ability of the equipments to sustain such stresses, such as, longer operating periods of time before taking for maintenance, is the goal of reliability engineering. This brings into the fore the concepts of Quality Assured Maintenance Management (QAMM). The concept of “Quality Assured Maintenance Management (QAMM)" is closely linked to that of reliability. Quality is a static concept because it deals with how closely the equipment or system adheres to the given specifications.Developing Quality Assured Maintenance Management (QAMM) for petrochemical industry is essential for improving quality of services provided to ensure better availability of equipments in order to reduce operating cost and increase the overall availability of the plant.

CHARACTERISTICS EVALUATION OF DIRECT MODULATED LASERS IN WDM LINKS  PART-I: STRUCTURAL PARAMETERS

 

Authors: Jaswinder Singh

 

JERS/ Volume II/ Issue III/July-September, 2011/6-9

ABSTRACT
The 1550 nm wavelength window is attractive as it offers minimum attenuation to the optical signals. While the optical links suffer from degradations such as fiber attenuation, dispersion and non-linear effects, the optical links also depend on the characteristics of the optical laser source. The structural parameters of the DML source such as transparency carrier density, current injection efficiency, thickness, width and length of the active region, laser mirror loss are some of the important parameters which affect the performance of the optical communication link In this paper, influence of the characteristics of the direct modulated laser source on the performance of optical links is studied.

ADVANCED QUALITY MANAGEMENT PHILOSOPHIES AND TECHNIQUES - APPLIED TO MAINTENANCE MANAGEMENT IN A PETROCHEMICAL INDUSTRY

 

Authors: N.K.K.Prasanna, Tushar. N. Desai

 

JERS/ Volume II/ Issue III/July-September, 2011/10-18

ABSTRACT
Quality management initiatives such as Total Quality Management, Kaizen, Total Productivity Maintenance, Risk Based Inspection, Root Cause Analysis, and Quality Circle are now necessary for maintenance management structure to succeed. With ever increasing demands from customers (both internal and external), legislations and share holders, it is important to stay competitive, productive, safe and reliable for which industries have adopted and have been adopting techniques like the above stated. This paper describes implementation of these quality initiatives in petrochemical industries and shows how improvements are made by adopting these techniques and also integrating them in petrochemical industries for achieving desired results of quality, productivity, safety, reliability and cost reduction.

USE OF VEGETABLE OILS BY TRANSESTERIFICATION METHOD AS C.I. ENGINES FUELS: A TECHNICAL REVIEW

 

Authors: Sagar P.Kadu*, R.H. Sarda

 

JERS/ Volume II/ Issue III/July-September, 2011/19-26

ABSTRACT
As an alternative fuel for compression ignition engines, plant oils are in principle renewable and carbon neutral. However, their use raises technical, economic and environmental issues. In the study work, a comprehensive and up-to-date technical review of using renewable fuels by transesterification methods (Bio-diesel of non-edible plant oil such as Jatropha oil, Karanja oil, Cotton seed oil, Castor seed oil, Mahua oil and Neem oil) in CI engines, based on comparisons with standard diesel fuel, has been carried out. The properties of several vegetable oils, and the results of engine tests using them, are reviewed based on the literature. Findings regarding potential, engine performance and exhaust emissions are collated. The causes of technical problems arising from the use of various oils are discussed, as are the modifications to oil and engine employed to alleviate these problems. The review shows that a number of vegetable oils can be used satisfactorily in CI engines, by transesterification. Results show that the engine performance was closer to standard diesel and emissions were reduced using transesterification process. The literature results suggest that bio-diesel (transesterification) can be used as a substitute for diesel fuel without any significant modification in engine.

CHARACTERISTICS EVALUATION OF DIRECT MODULATED LASERS IN WDM LINKS  PART-II: RADIATION PARAMETERS

 

Authors: Jaswinder Singh

JERS/ Volume II/ Issue III/July-September, 2011/27-30

ABSTRACT
While the optical links suffer from degradations such as fiber attenuation, dispersion and non-linear effects, the optical links also depend on the characteristics of the optical laser source. The direct modulated laser (DML) source radiation parameters such as photon lifetime, optical confinement factor, mode index, spontaneous emission coupling coefficient, gain coefficient, gain saturation factor are some of the important parameters which affect the performance of the optical communication link. In this paper, influence of the radiation characteristics of the direct modulated laser source on the performance of optical links is studied.

MODELING AND SIMULATION OF SOFT-SWITCHING DC/DC CONVERTER WITH HIGH VOLTAGE GAIN

 

Authors: D. Nithya Prabha, Dr. A.Peer Fathima, P. Marshall Arokia Dass

 

JERS/ Volume II/ Issue III/July-September, 2011/31-35

ABSTRACT
A soft-switching dc/dc converter with high voltage gain is proposed in this paper. It provides a continuous input current and high voltage gain. Moreover, soft-switching characteristic of the proposed converter reduces switching loss of active power switches and raises the conversion efficiency. The reverse-recovery problem of output rectifiers is also alleviated by controlling the current changing rates of diodes with the use of the leakage inductance of a coupled inductor. Experimental results obtained on 200W prototype are discussed.

VIBRATION ANALYSIS AND CONTROL OF CANTILEVER PLATE BY USING FINITE ELEMENT ANALYSIS

 

Authors: K.B.Waghulde, Dr. Bimlesh Kumar, Prof. T.D. Garse, Prof. M.M. Patil

 

JERS/ Volume II/ Issue III/July-September, 2011/36-42

ABSTRACT
Mechanical vibrations induced in flexible structures such as beams and plates have been researched through various optimization functions and control theories to optimize transient response dynamic characteristics. Piezoelectric materials sensors/actuators have been used to reduce and control these vibrations. However, stiffened plate has not been investigated and it is a main and important part of aerospace and light weight mechanical structures. The optimal placement of PZT sensor/actuator pairs on a stiffened plate to determine the optimal controller design and to optimize cost and system response have not studied yet. So, the objective of this project is to find the optimal location of sensor/actuator pairs and design optimal controller for beam, plate and stiffened plate to suppress mechanical vibrations theoretically and experimentally. The finite element method will be use to model the structure with piezoelectric material. The genetic algorithm will apply to find optimal placement of a number of piezoelectric sensor/actuator pairs, with objective functions of minimize control force, displacement, velocity, and the error. However, velocity feedback and linear quadratic regulator closed loop control will apply to study the transient dynamic response for the first six modes.

PERFORMANCE OF SOA AMPLIFIER AS A SWITCH IN WDM NETWORKS

Authors: Jaswinder Singh

 

JERS/ Volume II/ Issue III/July-September, 2011/43-46

 

ABSTRACT
The semiconductor optical amplifier (SOA) has many applications such as an amplifier, a switch and for wavelength conversion. The active medium can be used as the switching medium by controlling the pumping current in it. In this paper, the analysis is carried out to study the gain suppression caused in the output by controlling the pumping current. The effect of the input power and the confinement factor on the BER performance is studied. The comparison of the frequency spectra of the amplified and suppressed channels shows the degree of suppression caused by the SOA as a switch.

AN INNOVATIVE AUTO-REDUNDANT TECHNIQUE FOR ANALYSIS OF SINGLE LAYER GRID

 

Authors: Prof. M. N. Patel, Dr. B.B. Mistry

 

JERS/ Volume II/ Issue III/July-September, 2011/47-63

ABSTRACT
This paper presents an innovative and efficient method called Auto-Redundant Technique for analysis of grid having curved and straight members under complicated loads. This technique is based on a decomposition of the actual grid structure into sub-grids. The sub-grid may be supported sub-grid or unsupported sub-grid. Sub-grids are processed by the flexibility method to generate structure flexibility matrices for members of the grid structure. The choice of redundant is eliminated completely, to formulate structure flexibility matrix. Presently in this paper analysis is carried out for the grid with one end fixed, and the other end hinged; when it is subjected to various types of loading such as concentrated load, twisting moment, bending moment, full/partial uniformly distributed load and full/partial uniformly varying load. In this technique, any number of load cases can be accommodated without creating any additional node(s) on the member. The analysis technique is found very effective, accurate and programmable. A comprehensive C++ program based on the Auto-Redundant technique has been developed to compute member end reactions at both ends of the grid members. The results obtained through the program for complementary load cases are compared with the results from professional analysis software and are found to match. The power of this procedure is effectively demonstrated through the solution of one benchmark problem.

SIX SIGMA QUALITY MANAGEMENT TECHNIQUE–AN OVERVIEW

 

Authors: Jayesh Pathak, Tushar N. Desai

JERS/ Volume II/ Issue III/July-September, 2011/64-72

ABSTRACT
Six Sigma is one of the strategic tools used by leading organizations to achieve accuracy and speed and at the same time reduce cost and increase customer satisfaction and profits. Strategically Six Sigma is deployed to change the culture of organization through inculcating process control discipline applied in manufacturing and non-manufacturing businesses. This paper presents methodologies of Six Sigma, differentiate Six Sigma with Total Quality Management (TQM), strengths and barriers of Indian industries in implementing Six Sigma. The paper also explains key factors for implementing a successful Six Sigma program, benefits of implementing Six Sigma program, some common myths of Six Sigma as well as obstacles and challenges of Six Sigma methods.

ENHANCED SUFFIX ARRAY TO PROTEIN SEQUENCE ALIGNMENT

 

Authors: A. Kunthavai*, S.Vasantharathna

 

JERS/ Volume II/ Issue III/July-September, 2011/73-77

ABSTRACT
Sequence alignment is a popular bioinformatics application that determines the degree of similarity between nucleotide or amino acid sequences which is assumed to have same ancestral relationships. This sequence alignment method reads query sequence from the user and makes an alignment against large protein and gene sequence data sets and locate targets that are similar to an input query sequence. Traditional accurate algorithm, such as Smith-Waterman and FASTA are computationally very expensive, which limits their use in practice. The current set of popular search tools, such as BLAST and WU-BLAST, employ heuristics to improve the speed of such searches. However, such heuristics can sometimes miss targets, which in many cases is undesirable. This paper provides enhanced suffix array with ESAPRO Tool, to perform accurate and faster biological sequence analysis as an improvement on the computation time of existing tools in this area. The main idea is to pick matched patterns of the query sequence and identify sequences in the database which share a large number of these matched patterns. Then, reducing the size of the database to very few sequences which are found closest to the query sequence in question. Experiment results are cross validated using data mining technique. This show that a new ESAPRO Tool developed effectively reduces the database and obtains very similar results compared to those traditional algorithms in approximately half the time taken by them.

COLOUR GAMUT COMPARISON OF DAMPENING SYSTEMS: CONVENTIONAL VS ALCOLOR

 

Authors:Mrs. Manisha S. Deshpande

 

JERS/ Volume II/ Issue III/July-September, 2011/78-80

ABSTRACT
This document gives information about dampening system, their functions and types on lithographic offset printing machine. The project is about evaluating effectiveness of dampening system based on examination of printed image on the test form.

SCREEN ANGLE COMBINATIONS AND DESCREENING

 

Authors: Mr. Sameer S. Deshpande

 

JERS/ Volume II/ Issue III/July-September, 2011/81-84

ABSTRACT
This paper deals with study of color deviation caused due to changing screen angle combinations in process color lithographic offset printing. The printing test chart comprises of conventional and customized angles for process colors

 

SIMULATION STUDY OF SILICON NANOWIRE TRANSISTOR

 

Authors: Chirag D.Patel

 

JERS/ Volume II/ Issue III/July-September, 2011/85-86

 

 

DEVELOPMENT OF ROBOTIC SYSTEM

 

Authors:Prof. P.G. Damle, Asha L. Gawali,Sanjay C. Kumawat

 

JERS/ Volume II/ Issue II/July-September, 2011/87-100

ABSTRACT

DIGITAL IMAGE STEGANOGRAPHY

 

Authors:Pallavi Khare, Jaikaran Singh, Mukesh Tiwari

 

JERS/ Volume II/ Issue III/July-September, 2011/101-104

ABSTRACT
Steganography is the art and science of invisible communication. This is accomplished through hiding information in other information, thus hiding the existence of the communicated information. The word steganography is derived from the Greek words “stegos” meaning “cover” and “grafia” meaning “writing” defining it as “covered writing”. In image steganography the information is hidden exclusively in images. Digital Image Steganography system allows an average user to securely transfer text messages by hiding them in a digital image file. A combination of Steganography and encryption algorithms provides a strong backbone for its security. Digital Image Steganography system features innovative techniques for hiding text in a digital image file or even using it as a key to the encryption.

DETECTING AND ELIMINATING ROGUE ACCESS POINT IN IEEE 802.11 WLAN

 

Authors: Prof. S.B.Vanjale, Mr.Amol K. Kadam, Mr. Pramod A. Jadhav

 

JERS/ Volume II/ Issue III/July-September, 2011/105-108

ABSTRACT
Rogue Access Points (RAPs) is one of the leading security threats in current network scenario, if not properly handled in time could lead from minor network faults to serious network failure. Most of the current solutions to detect rogue access points are not automated and are dependent on a specific wireless technology. In this paper we propose the integrated solution for detection and eliminate the rogue access points.
Rogue detection algorithm is also proposed. This Methodology has the following properties: (1) it doesn’t require any specialized hardware; (2) the proposed algorithm detects and completely eliminates the RAPs from network; Our proposed solution is effective and low cost.

SOME STUDIES OF BOND (INTERFACIAL) STRENGTH BETWEEN VARIOUS REPAIR MATERIALS AND PARENT CONCRETE

 

Authors: Kamlesh S.Dalal, C.D.Modhera

 

JERS/ Volume II/ Issue III/July-September, 2011/109-123

ABSTRACT
Concrete structure repairing is a composite system of materials and in composites the bond between the individual components is most critical for overall viability. The durability of the bond in repair systems can be defined as a lasting interfacial coexistence of repair and existing phases (old concrete). Assuming the properties of the components are good, any improvement of the bond will improve the properties of the composite system. Achieving an adequate bond between repair materials and existing concrete is a critical requirement for durable surface repairs. It is essential that the repair material achieves a strong bond to the substrate and that subsequent stresses not be severe enough to cause debonding. Present Study deal with the compressive strength and bond strength using various repair materials. It was noted the compressive strength of Microconcrete ,Rubber base PMM and Acrylic base PMM are 117%, 20% and 25% higher than design mix concrete respectively. It was also observed bond strength between concrete substrate and various repair material using slant shear were 68%, 63% and 74% for rubber base PMM, acrylic base PMM and Microconcrete .Similarly by using direct shear we regain bond strength 52%,50% and 80% with respect to concrete’s original bond. It directly reflects that to achieve original bond strength of concrete study has scope of future work.

GIS BASED ROAD INFORMATION AND MANAGEMENT SYSTEM: A CASE STUDY OF 2010 DISASTER IN UTTARAKHAND

 

Authors: Jatin Pandey, Darshana Pathak Joshi

 

JERS/ Volume II/ Issue III/July-September, 2011/124-127

ABSTRACT
This paper focus on application of GIS (geographical information system ) in e-governance . A Geographic Information System (GIS) is a tool for spatial (having a location component) data analysis. This tool allows for the collection, storage, analysis or manipulation, and display of data in three dimensional behaviors. The typical display of a GIS is a map-based image where layers represent distinct components or types of information. GIS is becoming a tool in e-governance, to represent and influence context where decisions are made. This paper tries to discuss on management, planning and monitoring of road network in uttarakhand state as it is the main socio-economical component for any state. Firstly concept of GIS, e-governance and structure of road network in pilot area is discussed. Then system architecture of system is established with spatial and non- spatial component of system. This paper presented the identification of different spatial attributes of road network in uttarakhand, their integration with non-spatial data and finally represented a user friendly GIS based interface for planning and monitoring the road network in state with case study of 2010 disaster.

PERFORMANCE OF OFDM FOR DIFFERENT DIGITAL MODULATION SCHEMES

 

Authors: R Bhagya, Dr. A G Ananth

 

JERS/ Volume II/ Issue III/July-September, 2011/128-131

ABSTRACT
A detailed analysis of the performance of Orthogonal Frequency Division Multiplexing (OFDM) transmission with different digital modulation techniques has been carried out. BER performance at different SNR has been determined for Additive White Gaussian Noise (AWGN) channel. It is found that to achieve BER values of 10-5, the SNR required is ~29dB for 64-QAM, 15dB for 16-QAM and 9dB for QPSK digital modulation for OFDM transmission. The results indicate that the OFDM multiplexing schemes show an overall improvement of ~14dB between 64-QAM and 16-QAM modulation. and 6 dB improvement between 16-QAM modulation and QPSK modulation for the same BER values of 10-5. The OFDM multiplexing for digital transmission indicates gradual improvement in BER performance with higher levels of digital modulation. The simulation results are presented and discussed in the paper using MATLAB simulator.

EFFECT OF INJECTION PRESSURE ON THE PERFORMANCE AND SMOKE FORMATION OF LOW HEAT REJECTION ENGINE USING PONGAMIA METHYL ESTER

 

Authors:  Vinay Kumar D, Veeresh Babu A, Ravi Kumar Puli

 

JERS/ Volume II/ Issue III/July-September, 2011/132-136

ABSTRACT
The use of biodiesel is rapidly increasing around the world, making it imperative to understand the impacts of biodiesel on the diesel engine combustion process and pollutant formation. Biodiesel is known as the mono-alkyl-esters of long chain fatty acids derived from renewable feedstock, such as, non-edible vegetable oils or animal fats, for use in compression ignition engines. The high viscosity of vegetable oils leads to problem in pumping and spray characteristics. The best way to use vegetable oils as fuel in compression ignition (CI) engines is to convert it into biodiesel. The important advantages of biodiesel are lower exhaust gas emissions and its biodegradability and renewability compared with petroleum-based diesel fuel. The energy of the biodiesel can be released more efficiently with the concept of Low Heat Rejection (LHR) engine. The aim of this study is to apply Thermal Barrier Coatings (TBC) onto engine parts for improving engine performance when biodiesel is used as an alternative fuel. For this purpose, a Direct Injection (DI) diesel engine was converted to a LHR engine by applying Al2O3-TiO2(TBC) on the Piston Crown and the effects of biodiesel (produced from Pongamia oil) usage in the LHR engine, performance and emission characteristics have been investigated experimentally with injector pressures of 180 bar & 250 bar. The results showed that specific fuel consumption and the brake thermal efficiency were improved, exhaust gas temperature was increased in the LHR engine and the smoke density of the engine is decreased compared to the base engine when it is run with diesel.

A COMPARATIVE STUDY ON INPUT–OUTPUT PAIRING OF DYNAMIC PROCESS SYSTEMS

 

Authors:  Jain Amit, Dr. Babu B V*

 

JERS/ Volume II/ Issue III/July-September, 2011/137-142

ABSTRACT
This paper compares the steady state gain based Relative Gain Array (RGA) and bandwidth dependent effective RGA (ERGA) in analyzing dynamic process interactions and making loop pairing decisions. The results are compared with the pairing recommendations based on frequency dependent dynamic RGA (DRGA). Two examples are considered: one in which both traditional RGA and ERGA gives the correct pairing recommendation and the other in which the traditional RGA and ERGA suggests different pairing recommendations particularly in the frequency range of interest. The calculations pertaining to analysis of control loop pairing is performed using MATLAB (version 7.0.1). The first example uses 2x2 transfer function distillation column model and the second one uses 3x3 transfer function model.

OPPORTUNITIES AND CHALLENGES FOR HETEROGENEOUS CATALYSIS IN THE BIODIESEL PRODUCTION

 

Authors:  Niraj S. Topare*, K.S. Kulkarni*, A.D. Kulkarni

 

JERS/ Volume II/ Issue III/July-September, 2011/143-146

 

ABSTRACT
The production of biodiesel is greatly increasing due to its environmental benefits. However, production costs are still rather high, compared to petroleum-based diesel fuel. The introduction of a solid heterogeneous catalyst in biodiesel production could reduce its price, becoming competitive with diesel also from a financial point of view. Therefore, great research efforts have been underway recently to find the right catalysts. In this review paper will be concerned with the challenges and opportunities for heterogeneous catalyst performances for biodiesel production.

REAL TIME VIDEO COMPRESSION IMPLEMENTED USING ADAPTIVE BLOCK TRANSFER / MOTION COMPENSATION FOR LOWER BIT RATES

 

Authors:  S.L. Lahudkar and R.K. Prasad

 

JERS/ Volume II/ Issue III/July-September, 2011/147-153

 

ABSTRACT
The aim of this paper is to achieve considerable amount of compression in real-time images by using adaptive block transform with lower bit rates. The project aims to achieve the above mentioned objective by developing a code on a Turbo C++ platform / MATLAB. The project discusses important features of adaptive block transform in compression of still images, including the extent to which the quality of image is degraded by the process of discrete cosine transform compression and decompression. Image quality is measured objectively, using peak signal-to-noise ratio or picture quality scale, and subjectively, using perceived image quality. The effects of different functions, image contents and compression ratios are assessed. A comparison with a discrete-cosine-transform-based compression system is given. Our results provide a platform for reduced memory space and bandwidth requirements in on-line applications like video conferencing. Our project also discusses the challenges faced while developing an efficient solution for bandwidth and memory problems on a Turbo C++ platform. The still image formats used are essentially BMP (Bitmap), JPEG (Joint Photographic Experts Group) and GIF (Graphical Inter-Face).On similar lines the real-time image formats we have worked with are MPEG(Motion Picture Experts Group) and AVI(Audio-Visual Interface)