Volume-6 ~ Issue-1
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Paper Type | : | Research Paper |
Title | : | Prediction of Compressive Strength of PFA- Cement Concrete |
Country | : | Nigeria |
Authors | : | L. Anyaogu, C. Chijioke , Okoye,P |
: | 10.9790/1684-0610109 | |
Abstract: This work aims at prediction of compressive strength of Pulverised Fuel ash (PFA) – cement concrete based on Osadebe's five component second- degree polynomial. The model was used to optimize the compressive strength of concrete made from, cement, Pulverised Fuel Ash, sand, granites and water. A total of ninety (90) cubes were cast, comprising three cubes for each mix ratio and a total of thirty (30) mix ratios. The first fifteen (15) were used to determine the coefficients of the model, while the other fifteen were used to validate the model. The mathematical model compared favourably with the experimental data and the predictions from the model were tested with the statistical fischer test and found to be adequate at 95% confidence level. With the model developed in this work, any desired compressive strength Pulverised Fuel Ash-cement concrete can be predicted from known mix proportions and vice versa. Keywords: Pulverised Fuel Ash; model; optimization; compressive strength; cement; concrete
[2]. BS 12: (1978), "Specification for Portland cement".
[3]. Neville, A.M., (1996), "Properties of Concrete", Longman Ltd., England
[4]. Neville, A.M., and Brook, J.J.,( 1990), "Concrete Technology", Longman Ltd., Singapore
[5]. Scheffe, H. (1958), "Experiments with Mixtures", Journal of the Royal Statistical Society. Ser. B., 20, 344 – 360.
[6]. Obam, S.O.(2009). "A mathematical model for Optimization of Strength of Concrete: A case study for shear modulus of Rice Husk Ash Concrete. Journal of Industrial Engineering International. Vol.5 (9) 76-84
[7]. Osadebe, N.N., (2003). "Generalized Mathematical Modelling of Compressive Strength of Normal Concrete as Multi-variate function of the Properties of its Constituents components". A paper delivered at college of Engineering, University of Nigeria Nsukka.
[8]. Uwe, B. (2010). " Pozzolans: Trash to Treasure, http:// ferrocement.net/ferro/pozzolans
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Abstract: A fixture is designed and built to hold, support and locate every component to ensure that each is drilled or machined with accuracy and manufactured individually. A fixture can be designed for a particular job. A brake spider includes a spider body with a central opening and a slot for receiving a camshaft and bracket assembly. The brake spider is attached to axle housing via the central opening. The form to be used depends on the shape and requirement of the work piece to be machined. In the existing fixture, used for modeling brake spider component, only five components were machined per hour. In the present work, detailed study of brake spider component is carried out and design is modified to increase the productivity. The new fixture design is carried out by using CATIA V5 modeling software and it is critically evaluated for the failure of support pin component, by finite element method (FEM) using ANSYS software. This modified design is adapted in the fabrication of fixture and is tested for its productivity. It is found that there is a considerable enhancement in the productivity to seven components per hour with required accuracy.
Key Words: Fixture; support pin; ansys; brake spider; CATIA V5; FEM
[2]. Kartik M. Varadarajan, Martin L. Culpepper, "A dual-purpose positioned-fixture for precision six-axis positioning and precision fixturing" MA02139 (2002), USA
[3]. Patrick J. Golden, "Development of a dovetail fretting fatigue fixture for turbine engine materials" Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, OH 45433(2004), USA.
[4]. Yu Zheng, Chee-Meng Chew, "A geometric approach to automated fixture layout design", National University of Singapore, Singapore 117576, Singapore(2005).
[5]. W. Li, Peigen Li, Y. Rong, "Case-based agile fixture design" School of MechanicalScience and Engineering,Worcester Polytechnic Institute, Worcester, MA 01609-2280(2005), USA.
[6]. WassanaiWattanutchariya, "Bonding fixture tolerances for high-volume metal microlamination based on fin buckling and laminae misalignment behavior", (2007)
[7]. F. Mervyn, A. Senthilkumar, S.H. Bok, A.Y.C. Nee, "Development of an Internet-enabled interactive fixture design system", 10 Kent Ridge Crescent, Singapore.(2009)
[8]. K. Nagai, T. Yamaguchi, "Experiments on chaotic vibrations of a post-buckled beam with an axial elastic constraint", Gunma 376-8515, Japan.(2010)
[9]. SadettinOrhan, "Analysis of free and forced vibration of a cracked cantilever beam", Department of Mechanical Engineering, Faculty of Engineering, Kirikkale University, 71400 Kirikkale, Turkey
[10]. Rong Y, Bai Y, J Manufacturing Science Engineering, "Automated generation of fixture configuration design" Trans ASME 1997; 119(2):208–19.
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Paper Type | : | Research Paper |
Title | : | Application of Artificial Neural Network (Ann) In Operation of Reservoirs |
Country | : | India |
Authors | : | S.S.Khare , Dr. A.R.Gajbhiye |
: | 10.9790/1684-0611621 | |
Abstract:Reservoir operation is an important element in water resources planning and management. It consists of several parameters like inflow, storage, evaporation and demands that define the operation strategies for giving a sequence of releases to meet the demands. The operating policy is a set of rules for determining the quantities of water to be stored or released or withdrawn from a reservoir or system of several reservoirs under various conditions. Reservoir operation frequently follows a conventional policy based on Guide curves (Rule curves) that prescribes reservoir releases based on limited criteria such as current storage levels, season and demands. Operating policies can be derived using system techniques such as simulation, optimisation and combination of these two. System analysis has proved to be a potential tool in the planning, operation and management of the available resources. In recent years, artificial intelligence techniques like Artificial Neural Networks (ANN) have arisen as an alternative to overcome some of the limitations of traditional methods. In most of the studies, feed forward structure and the back propagation algorithm have been used to design and train the ANN models respectively. Detail analysis will be carried out to develop an ANN model for reservoir operation and assess the application potential of ANN in attaining the reservoir operation objectives compared with the conventional rule curves.
Key words: Artificial Neural Network, Back propagation, Guide curves (Rule curves), optimisation,reservoir operation, simulation
[2]. V.Chandramouli and H.Raman (2001), "Multireservoir modelling with dynamic programming and neural networks", Journal of Water planning and management, ASCE.
[3]. Farid Sharifi, Omid Bozorg & Mahsoo Naderi (2005), "Reservoir optimal operation using dynamic programming and Artificial Neural Network ", Proceeding of sixth WSEAS Int. Conf. on evolutionary computing, Lisbon, Portugal.
[4]. Paulo Chaves and Toshiharu Kojiri (2007),"Stochastic Fuzzy Neural Network: Case Study of Optimal Reservoir Operation", Journal of Water Resources Planning and Management, ASCS.
[5]. Paulo Chaves & Fi-John Chang (2008),"Intelligent reservoir operation system based on evolving Artificial Neural Networks", Journal of Advances in Water Resources.
[6]. Amir Ali Moaven Shahidi (2009),"Evaluation of combined model of DP and Neural Networks in single reservoir operation", Journal of Applied Sciences Research.
[7]. Paresh Chandra Deka and V. Chandramouli (2009),"Fuzzy Neural Network modelling of Reservoir Operation, Journal of Water Resources Planning and Management, ASCS.
[8]. Dr.Bithin Datta (2012),"Application of ANN real time optimal operation of multireservoir system, Journal of Water Resources Planning and Management.
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Abstract: Extracting energy from the sun has revolutionized the global energy industry. Different literatures have been reviewed to give an appropriate theory and mathematical model for the design of solar pond in Africa.The location chosen is Cairo,Egypt due to high annual solar radiation,feasible land, and fresh water conditions and cost effective. Energy balance equations have been computed from different case studies to show the factors affecting the efficiency of the solar pond such as effect of density, temperature, solar radiation, insulation thickness and depth of different layers .Optimum conditions for the design of a solar pond have been determined such as the thickness of the upper layer should not be more than 0.3m whereas the optimum thickness of gradient zone should be1-1.5m and the storage zone should be 1-4m.The main constraints in the design of a solar pond are different heat losses.But however, different techniques have been discussed for reducing the heat losses such as black painted concrete slab and concrete walls for minimizing the bottom losses and using a polystyrene top cover for reducing evaporation losses during night, winters and autumn. This technique can be very useful for the people of Africa specially dwelling in rural areas.
Keywords: Design, Solar Pond,RenewableEnergy
[4] Alenezi, I., 2012. Theoretical Modelingof Salinity Gradient Solar Pond in Saudi Arabia .Ph. D. University of Surrey.
[5] Sharif, A., Hussaini, H. and Alenezi, I., 2011. New method for predicting the performance of Solar Pond in any Sunny Part of the WorldLinkoping, Sweden 8-13 May 2011. Surrey: United Kingdom.
[6] NASA, 2013. NASA Surface Meteorology and Solar Energy[Online] Available at:<http://eosweb.larc.nasa.gov/cgi-bin/sse/grid.cgi?&num=212121&lat=30.057&submit=Submit&hgt=100&veg=17&sitelev=&email=w_wongsakorn@hotmail.com&p=grid_id&p=swvdwncook&p=swv_dwn&p=T10M&p=TSKIN&p=wspd50m&p=RH10M&p=PS&step=2&lon=31.226> [7] Anderson, C. G. (1959). Limnology of a Shallow Saline Meromitic Lake, Limnology and OceanographyNo.3, pp.259-269 [8] Wilson, A. T. and Well Mann.H.,1962.Lake Anda.anAntartic Lake,Nature,No.96,pp.1171-1173.
[9] Tundee,S., Terdtoon, P.,Sakulchangsatjatai,P.,Singh,R.&Akbarzaded,A.,2010.Heat Extraction from Salinity-Gradient SolarPonds Using Heat Pipe Heat Exchanger,[online] Available at:http://www.sciencedirect.com/science/article/pii/S0038092x10001568#
[10] German,M.A &Muntasser M.A.,2007.Sizing and Thermal Study of SalinityGradient Solar Ponds Connecting with The MED Desalination Unit,[online] Available at:http://www.sciencedirect.com/science/article/pii/S001191640708264
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Abstract:The quality of casting in the foundry can be measured by the rate at which solidification of the molten metal takes place, which is consequent upon the rate the mould, is able to dissipate the heat of solidification to the surroundings. The faster or slower the heat removal process during solidification the structure of the grains formed by the casting is either finer of coarser. An experimental investigation was carried out to compare the rate of solidification of commercially pure aluminium in metallic moulds. The rate at which solidification occurred was compared with the rate at which the mould absorbed and dissipates heat. The experiments conducted recorded the temperature fields at different casting location and that of the moulds respectively. The results showed that there is a direct relation of the rate of heat absorption by the mould and the rate of solidification in metallic moulds.
Keywords – Aluminium, casting, heat, mould, solidification, temperature.
[2] K. C. Bala, Simulation of Solidification of Aluminium Casting in Metallic Mould, doctoral diss., Mechanical Engineering Department, Federal University of Technology, Minna, Nigeria, 2012.
[3] R. E. P. DeGarmo, J. T. and R. A. Kohser, Materials and Processes in Manufacturing (New York, John Wiley & Sons, 2010).
[4] P. L. Jain, Principles of Foundry Technology (London: McGraw-Hill, 2003).
[5] Y. S. Lerner, Permanent Mold Casting of Ductile Iron, Journal of Foundry Management & Technology, 131(10), 2003, 18 – 22.
[6] R. Swarnkar, R. Kumar, R. M. Paswan, S. Singh, and V. Goyal, Modelling of Heat Transfer in Solidification Process. Term Paper Report, Department of Mechanical Engineering, Indian Institute of Technology, Guwahati, 2004.
[7] C. A. Santos, J. M. V. Quaresma, and A. Gracia, Determination of Transient Interfacial Heat Transfer Coefficients in Chill Mold Castings, Journal of Alloys and Compounds, 3(19), 2001, 174 – 186
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Abstract:Strength and flexural behaviour of reinforced concrete beams using deflected structural steel reinforcement and the conventional steel reinforcement are conducted in this study. The reinforcement quantity of both categories was approximately equalised. Mild steel flats with minimum thickness and corresponding width are deflected to possible extent in a parabolic shape and semi-circular shape are fabricated and used as deflected structural steel reinforcement in one part, whereas the fabrication of ribbed tar steel circular bars as conventional reinforcement on the another part of the experiment for comparison in the concrete beams. All the beams had same dimensions and same proportions of designed mix concrete, were tested under two point loading system. As the result of experiments, it is found that the inverted catenary flats and their ties, transfers the load through arch action of steel from loading points towards the supports before reaching the bottom fibre at the centre of the beam as intended earlier. Thereby the load carrying capacity and the ductility ratio has being increased in deflected structural steel reinforced beams when compared with ribbed tar steel reinforced concrete beams, it is also observed that the failure mode (collapse pattern)is safer.
Keywords --Arch profile, Conventional steel reinforcement, Cracks, Collapse, Deflected structural steel, Ductility ratio.
2. Since the contact surface between flat and concrete is more than circular bar and the concrete stress transmission among them in DSSRCC Beams is easier and in broad sense. Hence well confinement, wide range of stress distribution, in some situation stress conversions can be achieved in DSSRCC Beams results in increased load carrying capacity of the beams.
3. In a DSS Fabrication system probably the main strips are lies normal to the direction of the action of shear forces, thereby shear resistance can be increased without providing shear reinforcement in DSSRCC Beams.
4. Ductility ratio of DSSRCC Beams was too higher than the RTSRCC Beams. DSSRCC Beams are suitable to design as seismic resistant structural element.
5. Crack patterns and their developing system, failure mode and the sustainability leads to select the DSSRCC Beams as safer and serviceable than the RTSRCC Beams.
6. Perhaps DSSRCC Beams are very little costlier than RTSRCC Beams, because of the welding process(approximately 10% on fabrication cost or 2% on steel cost),the construction errors like insufficient cover, jig-jag positioning of reinforcement, uneven spacing of bars and ties, loose binds can be completely eliminated.
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Paper Type | : | Research Paper |
Title | : | Stress Analysis of Automotive Chassis with Various Thicknesses |
Country | : | India |
Authors | : | Hemant B.Patil, Sharad D.Kachave, Eknath R.Deore |
: | 10.9790/1684-0614449 | |
Abstract:This paper presents, stress analysis of a ladder type low loader truck chassis structure consisting of C-beams design for application of 7.5 tonne was performed by using FEM. The commercial finite element package CATIA version 5 was used for the solution of the problem. To reduce the expenses of the chassis of the trucks, the chassis structure design should be changed or the thickness should be decreased. Also determination of the stresses of a truck chassis before manufacturing is important due to the design improvement. In order to achieve a reduction in the magnitude of stress at critical point of the chassis frame, side member thickness, cross member thickness and position of cross member from rear end were varied. Numerical results showed that if the thickness change is not possible, changing the position of cross member may be a good alternative. Computed results are then compared to analytical calculation, where it is found that the maximum deflection agrees well with theoretical approximation but varies on the magnitude aspect. Keywords - Stress analysis, fatigue life prediction and finite element method etc.
[1] Roslan Abd Rahman, Mohd Nasir Tamin, Ojo Kurdi "Stress analysis of heavy duty truck chassis as a preliminary data for its fatigue life prediction using FEM" Jurnal Mekanikal December 2008, No. 26, 76 – 85.
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[3] Mohd Azizi Muhammad Nora,, Helmi Rashida, Wan Mohd Faizul Wan Mahyuddin "Stress Analysis of a Low Loader Chassis" Elsevier Ltd. Sci Verse Science Direct Procedia Engineering 41 ( 2012 ) 995 – 1001.
[4] Jadav Chetan S., Panchal Khushbu C., Patel Fajalhusen "A Review of the Fatigue Analysis of an Automobile Frames" International Journal of Advanced Computer Research, Volume-2 Number-4 Issue-6 December-2012, (ISSN (print): 2249-7277 ISSN (online): 2277-7970).
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[6] I. Kutay Yilmazcoban, Yaşar Kahraman "Truck chassis structural thickness optimization with the help of finite element technique" TOJSAT the Online Journal of Science and Technology - Volume 1, Issue 3, July 2011.
[7] Patel Vijay kumar V, Prof. R. I. Patel "Structural Analysis of Automotive Chassis Frame and Design Modification for Weight Reduction" International Journal of Engineering Research & Technology (IJERT), ISSN: 2278-0181, Vol. 1 Issue 3, May – 2012.
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Paper Type | : | Research Paper |
Title | : | An Application of DMAIC Methodology for Increasing the Yarn Quality in Textile Industry |
Country | : | India |
Authors | : | Neha Gupta |
: | 10.9790/1684-0615065 |
Abstract: This article presents a quality improvement study applied at a yarn manufacturing company based on six sigma methodologies. More specifically, the DMAIC (Define, Measure, Analyze, Improve, and Control) project management-methodology & various tools are utilized to streamline processes & enhance productivity. Defects rate of textile product in the yarn manufacturing process is so important in industry point of view. It plays a very important rate for the improvement of yield & financial conditions of any company. Actually defects rate causes a direct effect on the profit margin of the product & decrease the quality cost during the manufacturing of the product. By checking & inspection of defects of product at different point in production where more defects are likely to happen. A thousand defects opportunities create in the final package of yarn. That's why it is decided to do work & implement DMAIC methodology in winding departments where the final package of yarn is make.
Keywords - Six Sigma; DMAIC; Lean manufacturing; Yarn manufacturing.
[1] O. Al-Araidah, A. Momani, M. Khasawneh, and M. Momani, "Lead-Time Reduction Utilizing Lean Tools Applied to Healthcare: The Inpatient Pharmacy at a Local Hospital," Journal for Healthcare Quality, 2010, 32(1),pp. 59-66.
[2] M. Ali, "Six-sigma Design through Process Optimization using Robust Design Method," Master Thesis at Concordia University, Montreal, Canada, 2004.
[3] S. Bisgaard, and R. Does, "Quality Quandaries: Health Care Quality – Reducing the Length of Stay at a Hospital, Quality Engineering", 2009, 21, pp. 117-131.
[4] Y. H. Cheng, "The Improvement of Assembly Efficiency of Military Product by Six- Sigma," NCUT Thesis Archive, Taiwan, 2005.
[5] M. E. Cournoyer, C. M. Renner, M. B. Lee, J. F. Kleinsteuber, C. M. Trujillo, E. W. Krieger, C. L. Kowalczyk, "Lean Six Sigma tools, Part III: Input metrics for a Glovebox Glove Integrity Program," Journal of Chemical Health and Safety, Article in press, 2010,pp. 412, 1-10.
[6] A. D. Desai, "Improving Customer Delivery Commitments the Six Sigma way: Case Study of an Indian Small Scale Industry," International Journal of Six Sigma and Competitive Advantage, 2006, 2(1), pp. 23-47.
[7] E. Dickson, S. Singh, D. Cheung, C. Wyatt, and A. Nugent, "Application of Lean Manufacturing Techniques in the Emergency Department," The Journal of Emergency Medicine, 2009, 37, pp. 177-182.
[8] J. Edgardo, V. Escalante, and A. Ricardo, "An application of Six Sigma methodology to the manufacture of coal products," World Class Applications of Six Sigma, 2006, 98-124.
[9] M. Hook, and L. Stehn, "Lean Principles in Industrialized Housing Production: the Need for a Cultural Change," Lean Construction Journal, 2008, pp.20-33.
[10] C. Huang, K. S. Chen, and T. Chang, "An application of DMADV Methodology for increasing the Yield Rate of Surveillance Cameras, Microelectronics Reliability," 2010, 50, pp. 266–272.
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Abstract:Research on Kinematic Model of Anthropomorphic robotics Finger mechanisms is being carried out to accommodate a variety of tasks such as grasping and manipulation of objects in the field of industrial applications, service robots, and rehabilitation robots. The first step in realizing a fully functional of anthropomorphic robotics Finger mechanisms is kinematic modeling. In this paper, a Kinematic Model of Anthropomorphic robotics Finger mechanism is proposed based on the biological equivalent of human hand where each links interconnect at the metacarpophalangeal (MCP), proximal interphalangeal (PIP) and distal interphalangeal (DIP) joints respectively. The Kinematic modeling was carried out using Denavit Hartenburg (DH) algorithm for the proposed of Kinematic Model of Anthropomorphic robotics Finger mechanisms.
Index Terms— Anthropomorphic robot Finger, Modeling, Robotics, Simulation
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Abstract: This work aims at developing mathematical model for predicting the compressive strength of sawdust ash – cement concrete based on Osadebe's five component second- degree polynomial. The model was used to optimize the compressive strength of concrete made from, cement, sawdust ash, sand, granites and water. A total of ninety (90) cubes were cast, comprising of three cubes for each mix ratio of a total of thirty (30) mix ratios. The first fifteen (15) were used to determine the coefficients of the response function, while the other fifteen were used to validate the response function. The results from the response function compared favourably with the experimental results. The response function were tested with the statistical student's t-test and found to be adequate at 95% confidence level. With the response function developed in this work, any desired compressive strength of sawdust ash-cement concrete can be predicted from known mix proportions and vice versa.
Keywords: compressive strength, saw-dust ash, cement, concrete, Osadebe's regression functions.
[2] BS 12: (1978), "Specification for Portland cement".
[3] Elinwa, A.U. and Mahmood, Y. A. (2002). "Ash from timber waste as cement replacement material. Cement and Concrete Composites, 24, 219 – 222.
[4] Elinwa, A.U. and Abdulkadir, S. (2011) "Characterizing Sawdust ash for Use as an inhibitor for Reinforcement Corrosion." New Clues in Science. 1-10
[5] Neville, A.M., (1996), "Properties of Concrete", Longman Ltd., England
[6] Neville, A.M., and Brook, J.J.,( 1990), "Concrete Technology", Longman Ltd., Singapore
[7] Scheffe, H. (1958), "Experiments with Mixtures", Journal of the Royal Statistical Society. Ser. B., 20, 344 – 360.
[8] Obam, S.O.(2009). "A mathematical model for Optimization of Strength of Concrete: A case study for shear modulus of Rice Husk Ash Concrete. Journal of Industrial Engineering International. Vol.5 (9) 76-84
[9] Osadebe, N.N., (2003). "Generalized Mathematical Modelling of Compressive Strength of Normal Concrete as Multi-variate function of the Properties of its Constituents components". A paper delivered at college of Engineering, University of Nigeria Nsukka.
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Abstract:An experimental study has been carried out for pyrolysis oil blended with diesel used in single cylinder diesel engine. Pyrolysis oil is obtained from tire waste by pyrolysis process. Pyrolysis process is a thermo-chemical decomposition of organic matter in absence of oxygen. Blending of pyrolysis oil with diesel in maximum possible proportion helps to reduce the consumption of diesel fuel. In this study, the effects of parameters i.e. injection timing, injection pressure, compression ratio, and load are taken as variable for optimization. As the experiment required simultaneously optimization of four parameters with five levels, taguchi method of optimization is used in this experiment. The results of the taguchi experiment identifies that 220 injection timing, injection pressure 200 bar, compression ratio 16 and engine load 20kg are optimum parameter setting for lowest break specific fuel consumption. Engine performance is mostly influenced by engine load and is least influenced by Compression ratio.
Keyword: Pyrolysis oil, SFC, Taguchi Analysis, CI engine, Diesel
[1] Dhanajay et al, Parametric optimization of single cylinder diesel engine for pyrolysis oil & diesel blend for mechanical efficiency using taguchi method International Journal of Engineering Research & Technology (IJERT) Vol. 1 Issue 4, June – 2012 ISSN: 2278-0181 [2] N. Maheshwari, C. Balaji*, A. Ramesh, A nonlinear regression based multi-objective optimization of parameters based on experimental data from an IC engine fueled with biodiesel blends. http://dx.doi.org/10.1016/j.biombioe.2011.02.031
[3] Karthikeyan R, Dr..Nallusamy N, Dr. Alagumoorthi N., Dr. Ilangovan V.. " Optimization of engine operating parameters for turpentine mixed diesel fuelled DI diesel engine Using Taguchi Method". International Journal of Engineering Science and Technology. Vol. 2(10), 2010, 5295-5305.
[4] Ilkilic C, "Fuel production from waste vehicle tires by catalytic pyrolysis and its application in a diesel engine", 2011, journal of fuel processing technology, 92, 1129-1135.
[5] T. Ganapathy, K. Murugesan et al, Performance optimization of Jatropha biodiesel engine model using Taguchi approach. Applied Energy 86 (2009) 2476–2486.
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Paper Type | : | Research Paper |
Title | : | Design of an effective automated machine for quality palm kernel production |
Country | : | Nigeria |
Authors | : | M.O. Jimoh, O.J. Olukunle |
: | 10.9790/1684-0618997 | |
Abstract:Palm kernel production potentials of several countries are far from been fully exploited. At present, many countries are operating below expected capacity and this research effort is to develop an appropriate machine for quality production of palm kernel. Power requirement of the machine is 4.29kw, resultant bending moment of the shaft is 4.67Nm and 85.30Nm and diameter of the shaft is 25.39mm. The machine is evaluated using 'Dura' variety at moisture content; 12.00%, 11.10%, 10.20%, 9.60% and 9.00%, and 'Tenera' variety at; 12.00%, 11.00%, 10.00%, 9.10% and 8.20% moisture content. The performance of the machine shows that throughput capacity increases from 625-1270 kg/hr for 'Dura' and also increases from 750-1200 kg/hr for 'Tenera'. Mechanical damage reduces from 2.47-1.40% for 'Dura' and reduces from 1.16-0.20% for 'Tenera'. Functional efficiency increases from 92.30-96.40% for 'Dura' and increases from 95.50-99.07% for 'Tenera'. Quality performance efficiency increases from 91.00-95.30% for 'Dura' and increases from 95.50-98.80% for 'Tenera'. The mean shearing force in 'Dura' is 31.10 ± 0.20N and that of 'Tenera' is 12.66 ± 0.20N. Keywords - design, efficiency machine, palm kernel
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Abstract:Lean Manufacturing is a concept of improving the speed and efficiency of an organization by eliminating waste. On the other hand Six Sigma is a continuous improvement plan that is proposed to reduce variability. This paper presents the concept of integrating Lean manufacturing and six sigma, and the approach how the two concepts are merged in industries to increase the product through put and to improve the quality of the product by reducing the process variability. An approach to L6σ is also reviewed along with its Application.
Keywords - Lean Manufacturing, Six Sigma, L6σ
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Abstract:Milling composite materials is a difficult task due to its heterogeneity and the number of problems, such as surface delamination, fibre pullout associated with the characteristics of the material and the cutting parameters that appear during the machining process. Glass Fibre Reinforced Plastics (GFRP) composite is considered to be an economic alternative to heavy exotic materials. It is widely used in different fields such as aerospace, oil, automotive and aircraft industries due to their light weight, high modulus, specific strength and high fracture toughness. In this work, a plan of experiment based on Taguchi's L27 orthogonal array was established and milling experiments were conducted with prefixed cutting parameters for GFRP composite plates using solid carbide end mills. The machining parameters such as, and fibre orientation angle, helix angle, spindle speed and feed rate are optimized with the objective of minimizing the surface roughness, machining force and delamination factor. The objective was to establish a correlation between cutting parameters and responses. The correlation was obtained by multiple-variable linear regression using Minitab 14 software. Analysis of the influences of the entire individual input machining parameters on the responses has been carried out and significant contribution of parameters is determined by analysis of variance (ANOVA).
Keywords –ANOVA, GFRP composites, L27 orthogonal array, milling, Solid carbide end mill.
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Abstract:Every community produces both liquid and solid wastes and air emissions. The liquid waste-wastewater-is essentially the water supply of the community after it has been used in a variety of applications. From the standpoint of sources of generation, wastewater may be defined as a combination of the liquid or water-carried wastes removed from residences, institutions, commercial and industrial establishments, together with such groundwater, surfacewater and stromwater as may be present. This waste water through sewer comes to the sewage treatment plant so that parameters are reduced and treated wastewater be disposed into water or land. For treating the sewage UASB( UP FLOW ANAEROBIC SLUDGE BLANKET) and SBR(SEQUENCING BATCH REACTOR) technologies are mostly used
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Abstract:The automobile engine connecting rod is a high volume production critical component. Every vehicle that uses an internal combustion engine requires at least one connecting rod .From the viewpoint of functionality, connecting rods must have the highest possible rigidity at the lowest weight. The major stress induced in the connecting rod is a combination of axial and bending stresses in operation. The axial stresses are produced due to cylinder gas pressure (compressive only) and the inertia force arising in account of reciprocating action (both tensile as well as compressive), where as bending stresses are caused due to the centrifugal effects. The result of which is, the maximum stresses are developed at the fillet section of the big and the small end.Hence, the paper deals with the stress analysis of connecting rod by Finite Element Method using Pro/E Wildfire 4.0 and ANSYS WORKBENCH 11.0 software. The comparison and verification of the results obtained in FEA is done experimentally by the method of Photo elasticity(Optical Method). The method of Photoelasticity includes the casting of Photoelastic sheet using Resin AY103 and Hardner HY951, preparation of the model from Photoelastic sheet calibration of the sheet to determine material fringe value.
Keywords - Big End fillet section ,Connecting Rod, Compressive Stresses , Failure of Connecting Rod, FEA, Photoelasticity, Small End fillet section, Tensile Stresses.
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