E-ISSN 0976-3945
  International Journal of Advanced Engineering Technology
                                                                    -An Open Access Peer Reviewed e-Journal

 

 
 

FLOW SHOP SCHEDULING WITH MAKE SPAN AND CUSTOMER RESPONSIVENESS CRITERIA BY USING ALTERNATIVE APPROACHES

Authors: Medikondu Nageswararao, Harsha Lingareddy

IJAET/ Volume III/ Issue III/ July-Sept.'2012/01-09

ABSTRACT
There is a vast literature on the problem of how to sequence products in a blocking flow shop so as to minimize makespan. It is often the case, however, that problem instances have multiple optima, and that within the set of optimal (or near optimal) solutions, other characteristics of importance vary substantially. Thus, the solution found by an approach that solely minimizes makespan may be inferior to alternate solutions that have comparable makespan but superior value with regard to other criteria. In this paper, we demonstrate this by considering both makespan and customer responsiveness, the potential that a sequence has for modification so as to incorporate customer order changes after production has begun. We consider the relationship between these two metrics and present computational results to show how different approaches to making trade-offs between them can change the solution characteristics substantially.

STRONGLY-PSEUDO-CONTINUOUS-MODULES AND STRONGLY-PSEUDO-QUASI-CONTINUOUS MODULES

Authors: Mohammadali, H.K., Lylane, Y.A.

IJAET/ Volume III/ Issue III/ July-Sept.'2012/10-15

ABSTRACT
Let R be a commutative ring with unity. In this paper we introduced and study the concepts strongly-pseudo-continuous-modules and Strongly-pseudo-quasi- continuous modules as a stronger form of continuous modules and a quasi-continuous module respectively, and gives basic properties, examples and characterizations of these concepts. Also , we look for any connections between these concepts and the other known classes of modules.

DIELECTRIC PROPERTIES OF CHROMIUM SUBSTITUTED MANGANESE FERRITES

Authors: Gunjal R. P., Kakade G. N., Jadhav K. M.

IJAET/ Volume III/ Issue III/ July-Sept.'2012/16-17

ABSTRACT
Chromium substituted manganese ferrites, MnFe2-xCrxO4 with X=0.0, 0.2, 0.4, 0.6, 0.8, 1.0 were prepared by the Wet-chemical co-preparation method. The effect of Cr3+ substitution in manganese has been studied using x-ray diffraction (XRD). The X-ray diffraction result shows that system exhibit a single phase with cubic spinel structure. Lattice constant ‘a’ is found to be decrease linearly with Chromium concentration due to small ionic radius of Chromium. At room temperature dielectric constant & dielectric loss tangent have been measured in the frequency range 100 Hz to 5MHz .Dielectric constant & dielectric loss tangent decreases with increase frequency and also shows strong influence of the Chromium substitution.

A STUDY ON MANETs DHT BASED MULTIPATH ROUTING PROTOCOLS

Authors: Er. Manpreet Kaur, Er. Manoj Agnihotri

IJAET/ Volume III/ Issue III/ July-Sept.'2012/18-19

ABSTRACT
A wireless ad-hoc network is a decentralized nature of wireless networks. We call it ad-hoc network because it does not rely on preexisting networks, such as routers in wired networks or the access points in managed (communications) wireless networks. So MANETs are the advanced technology which provides the open connectivity of network using the different protocols. Our literature survey is quite appropriate for the research area of adhoc networking. DHT and AODV Multipath routing protocols are describe in this paper. AODV uses a broadcast route discovery mechanism, as is also used in the Dynamic Source Routing (DSR) algorithm. DHT-based routing protocol, which is also known as Indirect Tree-based Routing (ITR), integrates both conventional direct routing and indirect key-based routing at the network layer and provide a fully practical P2P network.

EFFECTS OF ETHANOL–DIESEL FUEL BLENDS ON THE PERFORMANCE AND EXHAUST EMISSIONS OF SINGLE CYLINDER DI DIESEL ENGINE

Authors: Thakrar Jatin. J, Dr. Rathod Pravin. P.

IJAET/ Volume III/ Issue III/ July-Sept.'2012/20-23

ABSTRACT
An experimental study is conducted to evaluate the effects of using ethanol-diesel of DI Diesel engine. Ethanol was added in proportion of 5, 10, 15, and 20% (by vol.) in to single cylinder DI diesel engine. The test on engine was conducted at constant speed of 1500 ± 10 rpm with electrical load bank Performance parameter like Brake power Brake thermal efficiency, Brake specific fuel consumption, mechanical efficiency was measured. Emissions from engine of HC, CO, CO2, and Smoke Opacity were also measured. Performance and emissions of Different blend were compared on a graph. It shows that Bsfc increased with increase of Ethanol % in to the diesel. Brake thermal efficiency slightly decreases with ethanol blend no major difference has been found. The emission parameters HC and CO were decreased and found minimum at 10% blend (E-10).

BATCH ADSORPTION OF REACTIVE RED 120 FROM WASTE WATERS USING ACTIVATED CARBON FROM WASTE TEA

Authors: Manase Auta

IJAET/ Volume III/ Issue III/ July-Sept.'2012/24-28

ABSTRACT
Recalcitrant anionic Reactive red 120 dye’s removal from waste water was studied by production of activated carbon produced from waste tea. The efficacy and efficiency of this low cost material was investigated to serve as a substitute to the pricey commercial activated carbon. The activated carbon from waste tea (WTC) was prepared through chemical activation in Nitrogen atmosphere and removal of Reactive Red 120 (RR120) was tested through batch adsorption process. Initial dye concentration (50-300 mg/L), temperature (30-50 oC), contact time and initial pH 3-12 were parameters considered during the experiment. Langmuir isotherm and pseudo-second-order kinetic were the best models that the fitted adsorption process compared with Freundlich and Temkin isotherm, and pseudo-first-order kinetic models that were also tested. The thermodynamic studies of the adsorption process revealed that the process was spontaneous, endothermic and intra-particle diffusion was rate controlling mechanism. The WTC prepared had good surface area and was found to be effective for adsorption of RR120.

SOLIDIFICATION-STABILIZATION OF ZINC WASTE CAKE FOR ABATEMENT OF HAZARDOUS POTENTIAL

Authors: Mohd. Akram Khan, Rajnish Shrivastava

IJAET/ Volume III/ Issue III/ July-Sept.'2012/29-31

ABSTRACT
All human activities like domestic, commercial, industrial and agriculture generate solid and hazardous wastes. The quantity and nature of the waste varies with the activities and with the level of technological development. Knowledge of technological interventions and regulations for hazardous waste generation, storage, transportation, treatment and ultimate disposal in the form of safe utilization is essential for effective industrial waste management. Improper disposal of the hazardous waste poses a threat to public health and can cause serious environmental damages. The present paper studies the hazardous waste cake generated during secondary zinc extraction process during the recovery of electrolytic grade zinc and copper. The waste under study falls under Schedule-I of Hazardous Waste (Management & Handling) Rules, 2003. The waste was collected from an industry located in the western part of India and generates around 5,000 TPA of waste cake. Toxicity Characteristics Leachate Procedure (TCLP) test was carried out for the waste and concentration of heavy metals present in the waste were estimated. The physical, chemical and engineering properties provide information on the characteristics and composition of the waste. Different binders like Portland Pozzolana Cement (PPC), fly ash and clay were used in different proportion using Indian Standard sand as admixture to prepare specimens and to study the Solidification/Stabilization (S/S) mechanism of the encapsulated mass. The engineering properties of the test specimen were evaluated to study the abatement potential of hazardous waste cake and to explore better utilization options for the zinc waste cake.

EXPERIMENTAL INVESTIGATION AND OPTIMIZATION IN TURNING OF UD-GFRP COMPOSITE MATERIAL BY REGRESSION ANALYSIS USING PCD TOOL

Authors: Surinder Kumar a*; Meenub and P.S. Satsangic

 

IJAET/ Volume III/ Issue III/ July-Sept.'2012/32-38

 

ABSTRACT
Glass fibre-reinforced plastics (GFRP) composite materials are one of the important materials and are economic alternative to engineering materials because of their superior properties. This paper presents an effective approach for the optimization of turning parameters based on the Taugchi’s method with regression analysis. Taguchi’s L16, 2-level orthogonal array is used for the experimentation. The turning parameters such as cutting speed, depth of cut, environment (dry and wet cutting) and feed rate. Response table and response graph are used for the analysis. The effect of turning parameters on surface roughness is evaluated and the optimum cutting condition for minimizing the surface roughness is determined. The experimental results reveal that the most significant machining parameter for surface roughness is feed rate followed by cutting environment (dry and wet). The results are confirmed by further experiments.

RECOVERY OF HEAVY METAL BY ADSORPTION USING PEANUT HULL

Authors: Dr. R.P. Ugwekar, G.P. Lakhawat

 

IJAET/ Volume III/ Issue III/ July-Sept.'2012/39-43

ABSTRACT
The drawbacks associated with activated carbon have resulted into the growing research interest for the development of some low-cost alternatives using a range of carbonaceous and other precursors. Many of the starting materials for these replacements are from agricultural or industrial by-products and, hence, their use as secondary adsorbents contributes to waste minimization with recovery and reuse. Many types of low-cost adsorbents have been developed and used for wastewater treatment. Generally the biosorbent are prepared from i) organic and ii) inorganic precursors. The absorbents obtained from both classes of precursors are used for water purification, especially for the removal of metal ions. The commonly used organic precursors are scrap tires, bark, tannin-rich materials, nut hulls, fruit peels and waste, cellulose and lignin rich material, saw dust, petroleum wastes, rice hulls, fruit stones, coconut shell, fertilizer wastes, peat moss, chitosan, algae, seaweeds, seafood processing wastes, resins, fly ashes and wastes of some industries. Contrarily, inorganic precursors include metal oxides, hydroxides, clays, red mud, zeolites, blast furnace slag, sediment, soil, ore minerals etc biorbents are used and studied for different impurities and various separation processes.

COMPUTER AIDED ANALYSIS AND STRUCTURAL OPTIMIZATION OF TRANSMISSION LINE TOWER

 

Authors: Mr. T. Raghavendra

IJAET/ Volume III/ Issue III/ July-Sept.'2012/44-50

ABSTRACT
The Transmission-line tower is highly indeterminate structure. In present study, a typical 132-KV double circuit transmission-line tower is considered, for optimizing the structure with respect to configuration and different materials as variable parameters. The tower is modeled and analyzed using STAAD-PRO and ANSYS software’s. The basic model of the tower considered is analyzed in STAAD-PRO and the results with respect to the member axial forces are validated in ANSYS. A number of experimental configurations of the tower are obtained by increasing the base width of the tower and also by decreasing the bracing patterns below the waist of the tower.

PERFORMANCE OF DIESEL ENGINE USING BLENDS OF ESTERS OF JATROPHA AND KARANJA- A NOVEL APPROACH

 

Authors: Nagarhalli.M.V , Nandedkar.V.M

 

IJAET/ Volume III/ Issue III/ July-Sept.'2012/51-54

ABSTRACT
Research till now has mainly been concentrated on using blends of diesel-biodiesel in diesel engines. In the present investigation an attempt has been made to use blends of two biodiesel oils to run a single cylinder, 4 stroke, constant speed, D.I. diesel engine. Blends of transesterified jatropha and karanja have been used in different proportions (10% to 90%) and neat biodiesel were tested for performance, brake thermal efficiency, brake specific energy consumption (bsec) and their emissions CO, HC, NOx. at an injection pressure of 200 bar and 210 bar. The results are compared with that of neat diesel. The results indicate that HC and CO emissions were lower at 200 bar and K20-J80 blend. NOx emissions were higher at blends than diesel. The brake thermal efficiency was higher than diesel at both the injection pressures used. Hence, blends of jatropha and karanja can be used in existing diesel engines without any engine modifications.

DYNAMIC FLOOD ROUTING AND UNSTEADY FLOW MODELLING: A CASE STUDY OF UPPER KRISHNA RIVER

 

Authors: Doiphode Sanjay L* Oak Ravindra A.

 

IJAET/ Volume III/ Issue III/ July-Sept.'2012/55-59

ABSTRACT
The movement of a flood wave in a river channel is a highly complicated phenomenon of unsteady and non uniform flow. Flood routing is a mathematical method (Model) for predicting the changing magnitude, shape and celerity of a flood wave which propagates through a river.
Every year Sangli City, in Maharashtra, faces problems of floods and damages during monsoon. The problems are caused by the release of water from the reservoirs located in the Upper reaches of Krishna & Koyna Rivers. During these periods, many bridges over Krishna River get submerged, resulting cutoff in communication, inundation of the city and surrounding area.
The HEC-RAS is capable of performing one-dimensional water surface profile calculations for unsteady flow for a full network of channels, a branching system or a single river reach. Unsteady flood model in HEC-RAS was set up using available survey data of Krishna and Koyna River. The Krishna River reach of length about 233 Km from the downstream of Dhom Dam to Sangli city was considered for the flood routing studies. For Koyna River the reach from downstream of Koyna dam to Krishna –Koyna confluence at Karad was also incorporated. In the year 2005, maximum flood occurred in the Sangli. For upstream boundary of the model the available flood release hydrographs of the worst year 2005 from various reservoirs in upper reaches of Sangli was used. Contribution of discharge from the tributaries and the local catchments was also incorporated. Calibration of model was done using the gauge discharge data available at Karad and Sangli.
The results of model run showed that the stage and discharge worked out from the model had a good agreement with observed stage and discharge. Hence, it was concluded that the model set up can be reliably used to get the flood flow profiles at Sangli. Studies were also conducted to estimate the changes in the hydrographs under the estimated worst scenarios. The analysis of available flood data was done to identify the flood sensitivity of Sangli, due to Koyna and Dhom dam flood water release. It was found that a flood situation at Sangli mainly depends on the water release from koyna dam. Maximum limit for the flood release from Koyna dam could be 1690 cumecs, so that the flood level would reach the danger level of 540.77m at Irwin Bridge Sangli.

CHARACTERIZATION AND ADSORPTION STUDIES OF ACTIVATED CARBON PREPARED FROM RICE HUSK, SUGARCANE BAGGASSE AND SAW DUST

 

Authors: S.L.Pandharipande, Y.D.Urunkar, Ankit Singh

 

IJAET/ Volume III/ Issue III/ July-Sept.'2012/60-62

ABSTRACT
The ability of some solids to remove colour from solutions containing dyes has been known for over a century. Activated carbon has been quite successful for removal of impurities from waste water streams. Agricultural waste material can effectively be converted in to activated carbon using straw, leaves, stem, seeds & husk. The objective of the present work is to utilize waste materials like Rice Husk, Saw Dust & Sugarcane Baggasse by convertingthem into adsorbent using thermal & chemical treatment and their comparative study for removal of colour agents from aqueous solution. The surface area of activated carbon obtained from rice husk, sugarcane baggasse and saw dust is observed in the range of 400-926 m2/gm. Equations of adsorption isotherms based on the experimentation have been developed for the removal of potassium dichromate, methyl violet and methylene blue from aqueous solutions. It is concluded that suitability of saw dust & rice husk activated carbons is good than sugarcane baggasse activated carbon for removal of potassium dichromate. Similarly sugarcane baggasse activated carbon is suitable for removal of methyl violet, whereas saw dust & sugarcane baggasse activated carbons are suitable for removal of methylene blue than sugarcane baggasse activated carbon.

 

TEMPERATURE RISE DISTRIBUTION DUE TO THE COMBINED EFFECTS OF SHEAR PLANE HEAT SOURCE AND THE TOOL-CHIP INTERFACE FRICTIONAL HEAT SOURCE

 

Authors: Mr. Lathiya Dharmeshkumar and Mr. Viswakarma Ajay

 

IJAET/ Volume III/ Issue III/ July-Sept.'2012/63-66

 

ABSTRACT
A large amount of heat is generated during machining process as well as in different process where deformation of material occurs. The power consumed in metal cutting during cutting operation is largely converted into heat. The studies of temperature fields in machining are very important for the development of new technologies aiming to increase the tool life and to reduce production costs. Determination of the maximum temperature during machining process and its distribution along the rake surface are of much importance as it influences the tool life and the quality of machined part. In the present work, numerous methods have been discussed to approach the problem of temperature distribution such as experimental, analytical and numerical analysis. In addition, temperature measurement techniques used in metal cutting are briefly reviewed. Furthermore, an attempt has been made to develop analytical thermal model to determine the temperature during the cutting process. The model is developed using MATLAB software and generated results will be compared with the published work, for different workpieces and cutting conditions.

COMPLETE DESIGN OF CELLULAR MANUFACTURING SYSTEMS

 

Authors: Dr. P.V. Chalapathi

 

IJAET/ Volume III/ Issue III/ July-Sept.'2012/67-71

ABSTRACT
In all situations, where traditional machines are used for operations on parts, concurrent formation of part-families and machine-cells is necessary. In these situations part route-sheets can provide all the details like: sequence of operations, set-up and processing times, and number of units to be produced. The number of machines available initially may also be known. Presently available cell formation methods based on 0-1 matrix may not give satisfactory results. The effectiveness of the method depends upon the quantity and accuracy of the information available. For such an environment a methodology has been proposed in this paper. It takes all the available information from the route sheets into consideration. It designs the part families with concerned machine cells by allowing minimum number of inter cell operations and increasing machine utilization. It also designs the line layout of machines in each machine cell as well as layout of cells, considering the material flow. One numerical example is illustrated for the method and also compared with some bench mark problems.

BIO-GAS GENERATION AND FACTORS AFFECTING THE BIO-GAS GENERRATION – A REVIEW STUDY

 

Authors: Harilal S. Sorathia* , Dr. Pravin P. Rathod, Arvind S. Sorathiya

 

IJAET/ Volume III/ Issue III/ July-Sept.'2012/72-78

ABSTRACT
Due to the increasing demand for fossil fuels and environmental threat, a number of renewable sources of energy have been studied worldwide. An attempt is made to assess the suitability of alternative fuels like Methanol, Ethanol, Hydrogen, Natural Gas, LPG, CNG, LNG, Biogas and Biodiesel for diesel engine operation with and without any modifications in its existing construction. The main objective of this paper is to investigate Bio-gas Generation and Factors Affecting the Bio-gas Generation from various organic matters by the biological breakdown. The investigated results show that biogas is the cheapest non-conventional energy produce from various organic wastes.

PROSPECT OF USING GRANULAR PILES FOR IMPROVEMENT OF EXPANSIVE SOIL

Authors: Kumar R., Jain P.K.

 

IJAET/ Volume III/ Issue III/ July-Sept.'2012/79-84

ABSTRACT
In India, more than one fifth area is covered with expansive soil. The soil shows low shear strength and high compressibility under wet condition and therefore may be regarded as a soft soil. Construction on such soils has problems of low bearing capacity, excessive total settlement, large lateral spreading and slope instability etc. .To mitigate these problems, different ground improvement techniques have been proposed in the literature. These include soil replacement, compression, sand cushion, under reamed piles, pile anchor foundation system, chemical stabilization, mechanical stabilization and soil reinforcement etc. The concept of granular piles/stone column for soft soil improvement in marine clay is becoming popular because it gives the advantage of accelerated consolidation and reduced settlements due to reduction in flow path lengths (Greenwood, 1970; Hughes et al., 1975). The construction of granular pile/stone column involves replacement of about 10 to 35 percent of weak soil with coarse granular material, such as stone, sand and stone chips etc. in the form of a column, which increase overall stiffness of the ground. As a result, the load carrying capacity of the ground increases and settlement decreases. The paper reviews critically the available techniques commonly used for expansive soil improvement explains briefly the concept of granular piles in soft soils and explores the possibility of using granular pile technique to improve the behaviour of expansive soils.