International Journal Engineering and Applied Technology (IJEAT)
IJEAT publishes original papers only and the submission of a manuscript will be taken to imply that the contributions are original and that no similar manuscript has been or is being submitted to other journals. Manuscripts are solicited from all areas of specialization in engineering. IJEAT is an international and multidisciplinary journal. The major goal of the journal is to communicate advances in engineering and applied technology, with a particular preference to Asia, to researchers, practicing engineers and decision makers of developing countries. IJEAT publishes peer-reviewed research papers (both theoretical and applied) and state-of-the-art reviews related to Engineering and technology. The scope of the journal includes mechanical engineering, civil engineering, industrial engineering, electrical engineering, power engineering, environmental engineering, postharvest technology, food technology, biotechnology and emerging technologies. Subjects of basic engineering and science such as instrumentation, machinery design, human factor and ergonomics, global warming, renewable energy, climate change, terramechanics and new materials are also included in the scope of IJEAT.
Articles
54 Documents
<![CDATA[CHARACTERISTICS ABSORPTION AND MODELING OF UNRIPE PLANTAIN CHIPS ]]>
<![CDATA[A. Ajala]]>;
<![CDATA[F. Ajala]]>
<![CDATA[ INTERNATIONAL JOURNAL ENGINEERING AND APPLIED TECHNOLOGY (IJEAT) Vol. 1 No. 1 (2018): International Journal of Engineering and Applied Technology (IJEAT) ]]>
Publisher : <![CDATA[Nusa Putra University ]]>
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DOI: 10.52005/ijeat.v1i1.1
<![CDATA[In this study, water absorption characteristics of dried unripe plantain chips were investigated by soaking in distill water at 20°C, 30°C and 40°C. The data generated were fitted into three models namely Peleg, Weibull and exponential. The statistical criteria used in evaluation of the models were coefficient of determination (R2), reduced chi-square (χ2), mean bias error (MBE) and root mean square error (RMSE). The result shows that temperature did not affect water absorption properties initially, but it did affect it as re-hydration progressed. The result of R2 shows that Weibull model has the highest value of 0.979 and exponential model has lowest value of 0.653. Therefore, Weibull model was adjudged to have successfully fitted water absorption of unripe plantain chips.]]>
<![CDATA[FINITE ELEMENT ANALYSIS OF PISTON HEAD USING CAD ]]>
<![CDATA[Nitin K.S]]>;
<![CDATA[Sahani Sahani]]>;
<![CDATA[S.B. Lai]]>
<![CDATA[ INTERNATIONAL JOURNAL ENGINEERING AND APPLIED TECHNOLOGY (IJEAT) Vol. 1 No. 1 (2018): International Journal of Engineering and Applied Technology (IJEAT) ]]>
Publisher : <![CDATA[Nusa Putra University ]]>
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DOI: 10.52005/ijeat.v1i1.2
<![CDATA[The motive of undertaking this project of structural analysis of piston head is to study and evaluate the performance in real working conditions of the piston in internal combustion engine. In this paper, the work is carried out to measure the stress distribution on the top surface of the piston made up of aluminium alloy. In IC engine piston experiences uneven temperature distribution and from piston head to skirt. The analysis predicts that due to stress generated the top surface of the piston may be damage or break during the operating conditions, since the damaged or broken parts are so expensive to replace and generally are not easily available, the 3D model of piston is created using Creo. 3D model is imported to the Abaqus and FEA is performed. By identifying the true design features, the extended service life and long term stability is assured.]]>
<![CDATA[MEASUREMENT OF WETLAND PENETRATION RESISTANCE AT VARIOUS POINTS OF PRESSURE ]]>
<![CDATA[Z.F. Nizamani]]>;
<![CDATA[Irwin Syahri Cebro]]>
<![CDATA[ INTERNATIONAL JOURNAL ENGINEERING AND APPLIED TECHNOLOGY (IJEAT) Vol. 1 No. 1 (2018): International Journal of Engineering and Applied Technology (IJEAT) ]]>
Publisher : <![CDATA[Nusa Putra University ]]>
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DOI: 10.5281/zenodo.1541344
<![CDATA[Traction performance of a cage wheel for two-wheel tractor depended on its shape, dimension, lugs materials and soil condition. In order to get the optimum design of the cage wheel, relation between tractor, implement and soil condition should be considered carefully. The objective of this research was to determine optimum design parameters of cage wheel for the farm field in North Aceh. A computer program for design analysis and for producing engineering drawing of cage wheels. The computer program was developed and employed for the optimization process and for drawing the design result. As a trial of the program, the optimum design parameters of cage wheel were found to be: 75 cm of wheel diameter; 8 lugs; 19 cm × 10 cm of lug size; and 30° of lug angle. The result of field testing (validation) shown that wheel of a tractor using the design was able to work well and it can produce ground-level of muddy better than the standard wheel.]]>
<![CDATA[INFLUENCE OF SPINDLE SPEED ON ALUMINUM SURFACE ALLIANCE IN CONVENTIONAL AND CNC LATHE MACHINE ]]>
<![CDATA[X. Chen]]>;
<![CDATA[C. Lin]]>;
<![CDATA[I.S. Cebro]]>
<![CDATA[ INTERNATIONAL JOURNAL ENGINEERING AND APPLIED TECHNOLOGY (IJEAT) Vol. 1 No. 1 (2018): International Journal of Engineering and Applied Technology (IJEAT) ]]>
Publisher : <![CDATA[Nusa Putra University ]]>
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DOI: 10.5281/zenodo.1541436
<![CDATA[The level of surface roughness of a metal in the lathe process depends on the process; spindle rotation, cutting speed, feed speed, cutting tool material, cooling process and machine condition. The objective of this research is to know spindle rotation relationship to aluminum surface roughness on the conventional lathe and CNC lathe. The test specimens amounted to 36 for the conventional lathe and 36 for the CNC lathe. Spindle rotation varied at 9 levels of rotation ie 90 rpm, 100 rpm, 155 rpm, 190 rpm, 260 rpm, 320 rpm, 440 rpm, 540 rpm and, 740 rpm. Each spindle level rotates four specimens. The measurement results show that on the conventional lathe the higher the spindle spin the higher the level of surface roughness, while on the CNC lathe the higher the spindle spin the lower the surface roughness level.]]>
<![CDATA[LOAD STATIC SIMULATION OF TRANSMISSION ROD FOR DESIGN OF CHINESE SPINACH (IPOMOEA REPTANS POIR.) HARVESTER ]]>
<![CDATA[Agustami Sitorus]]>
<![CDATA[ INTERNATIONAL JOURNAL ENGINEERING AND APPLIED TECHNOLOGY (IJEAT) Vol. 1 No. 1 (2018): International Journal of Engineering and Applied Technology (IJEAT) ]]>
Publisher : <![CDATA[Nusa Putra University ]]>
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DOI: 10.5281/zenodo.1541553
<![CDATA[The harvesting machine for Chinese spinach (Ipomoea reptans Poir.) has never been designed. In fact, appropriate technology is needed for Chinese spinach farmers in Indonesia. Therefore, this paper begins by designing the concept of Chinese spinach harvesters integrated with hand tractors. One of the most important parts of this integration process is the part of the transmission system that connects the power source to the harvesting unit. The proposed design concept is to use a rod transmission system. The transmission of the rod becomes crucial so it is important to perform dimensional analysis and determine its material type. Therefore, this study is to simulate the rod of the transmission system through load static simulations approach. Load static simulations run with the help of CAD applications. The material tested consisted of AISI 1010, AISI 1020, AISI 4340 with a material thickness of 2 mm, 4 mm and 5 mm respectively. The simulation results show that the AISI 1020 meter is better to use with a thickness of at least 2 mm. This result is also supported by an analysis using the laws of classical mechanics which state that the minimum thickness of the transmission rod is 0.6692 mm. The power to be transmitted to the harvesting machine is 1.3 hp.]]>
<![CDATA[Numeric evaluation from cantilever beam and plate ]]>
<![CDATA[Maiti P. R.]]>;
<![CDATA[Bhattacharyya S. K.]]>
<![CDATA[ INTERNATIONAL JOURNAL ENGINEERING AND APPLIED TECHNOLOGY (IJEAT) Vol. 1 No. 2 (2018): International Journal of Engineering and Applied Technology (IJEAT) ]]>
Publisher : <![CDATA[Nusa Putra University ]]>
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DOI: 10.52005/ijeat.v1i2.8
<![CDATA[As soon as fluid passes over a solid surface vortices are formed at the surface of structure to satisfy the no slip boundary conditions at the fluid-structure interface. Vortices that are formed at fluid-structure interface diffuse in fluid domain. In the present study, the strength of vortices is evaluated on the surface of an oscillating structural element (cantilever beam and plate) that is interacting with oscillating fluid flow. In the analysis, the analysis of structural element is carried out by finite element method and analysis of fluid domain is carried out by panel method. It is assumed that the deformed geometry of the structure at any moment is same shape as the vortex sheet. The structure is replaced by a virtual vortex sheet of uniformly distributed point vortices on the surface. A few numerical examples are presented to show the variation of vortex strength, lift and pressure coefficients for different type flow passes over the oscillating rigid and flexible structural element in fluid medium. The strength of vortex depends on fluid flow characteristics around the structural element and motion of structure in fluid medium.]]>
<![CDATA[Analysis of the model using General Evolutionary Algorithm ]]>
<![CDATA[N. Hu]]>
<![CDATA[ INTERNATIONAL JOURNAL ENGINEERING AND APPLIED TECHNOLOGY (IJEAT) Vol. 1 No. 2 (2018): International Journal of Engineering and Applied Technology (IJEAT) ]]>
Publisher : <![CDATA[Nusa Putra University ]]>
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DOI: 10.52005/ijeat.v1i2.9
<![CDATA[The study aims to solve the universality of evolutionary computation for solving different optimization problems, avoid the repeating design, and share codes, so as to improve the application efficiency of the algorithms. To achieve this, the authors put forward a general evolutionary model based on object-oriented programming language (C# language) in this paper. This model divides the problem domain, the fitness function, the algorithm and the parameter control into different classes, which are encapsulated into different objects so as to enhance the independence of each module. By utilizing the model, it is convenient to develop, reuse, extend and modify software while guaranteeing the universality of the algorithm at the same time.]]>
<![CDATA[Assessment Of Seed Cake And Fermented Slurry Of Jatropha Seed As Bio-Fertilizer ]]>
<![CDATA[Mohammed M.O.]]>;
<![CDATA[Abdalrhaman M.S.]]>
<![CDATA[ INTERNATIONAL JOURNAL ENGINEERING AND APPLIED TECHNOLOGY (IJEAT) Vol. 1 No. 2 (2018): International Journal of Engineering and Applied Technology (IJEAT) ]]>
Publisher : <![CDATA[Nusa Putra University ]]>
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DOI: 10.5281//zenodo.2641411
<![CDATA[The objectives of this study were to evaluate the seed cake and fermented slurry of Jatropha seed as bio- fertilizer. The chemical analyses showed that the seed cake has 6.3% nitrogen, 0.9% phosphorus and 1.2% potassium. While fermented slurry showed 6.65% nitrogen, 5.3% phosphorus and 0.71% potassium. The Fermentation increased nitrogen content from 6.3 to 6.65 and Phosphorus from 0.9 to 5.3 while the potassium was decreased from 1.2 to 0.71. It is obvious that fermentation of seed cake resulted in substantial increase of phosphorus. The seed cake and fermented slurry of Jatropha seed were tested as bio-fertilizer. Similar doses of both Seed cake and fermented slurry were used (5, 10 and 20t/hectare). Both components were tested using sorghum plants. The bio-fertilizers were applied 30 days after sowing. The higher doses of the seed cake resulted in complete loss of the sorghum plants. There is no difference between the control and the lower doses. On the other hand the fermented slurry caused an increase in number of leaves stem diameter and plant height. It could be concluded that the toxicity of seedcake can be removed by fermentation. Microbiological investigation indicated that the microorganisms involved in the fermentation process were Bacillus and Lactobacillus bacteria.]]>
<![CDATA[Investigations Of Transmission Losses And Efficiency ]]>
<![CDATA[Osahenvenwen O.A.]]>;
<![CDATA[Enoma O.C.]]>;
<![CDATA[Aitanke H.]]>
<![CDATA[ INTERNATIONAL JOURNAL ENGINEERING AND APPLIED TECHNOLOGY (IJEAT) Vol. 1 No. 2 (2018): International Journal of Engineering and Applied Technology (IJEAT) ]]>
Publisher : <![CDATA[Nusa Putra University ]]>
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DOI: 10.52005/ijeat.v1i2.11
<![CDATA[This study presents Evaluation of transmission losses and efficiency, aim at to determine the losses associated with power transmission line and provide solution to improve power transmission line. This study was carried out at Benin regional power transmission station on 330KV/132KV power network, Sapele Road, Benin City. The Data collected were hourly reading recorded by various system operators on duty on a twenty-four hour basis, for duration of one year, from July 2009 to June 2010. Data collected were transmission parameters such has the sending voltage, Current and Power from Delta 330KV power station to Benin 330 KV received power station with voltage, current and power. In addition, 132KV transmission line parameters were also considered. The average voltage loss per month from 132KV transmission line from Benin to Irrua is 2.67KV, while the current is 16.25 Amp. The average voltage loss per month on 330KV transmission line from delta to Benin power regional centre is 4.725KV. While the current obtained is 22.5Amp. It observed that the higher power transmitted the higher the losses associated with the power system. In addition, size of cable and the distance covered are major factor that lead to loss on the power transmission line.]]>
<![CDATA[Structural and Optical Properties of Zinc Doped CdS Thin Films ]]>
<![CDATA[Karunathi U.]]>;
<![CDATA[Pabahar S.]]>;
<![CDATA[Sikanth S.]]>;
<![CDATA[Karunkaran R.T]]>
<![CDATA[ INTERNATIONAL JOURNAL ENGINEERING AND APPLIED TECHNOLOGY (IJEAT) Vol. 1 No. 2 (2018): International Journal of Engineering and Applied Technology (IJEAT) ]]>
Publisher : <![CDATA[Nusa Putra University ]]>
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DOI: 10.52005/ijeat.v1i2.12
<![CDATA[In this paper, different aspects and facts concerned with the synthesis of thin films of lead chalcogenides along with its opto-electro-structural properties is presented. The polycrystalline thin films were put onto chemically clean and optically plane glass substrates by chemical bath deposition technique from aqueous solutions of Cadmium chloride, Zinc acetate, thiourea, triethanolamine and ammonia. X-ray diffraction analysis has been used for the structural characterization. It indicates that the crystallized layers are cubic in form. By using Scherrer’s formula and the data obtained from the XRD studies,the grain size was calculated as 16.5 nm. The band gap energy estimated for Zinc- doped CdS thin films is 2.95 eV.]]>
