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Journal of Mechanical Science and Engineering
Published by Universitas Sriwijaya
ISSN : -     EISSN : 23549467     DOI : -
Core Subject : Engineering,
Mechanical Engineering
Editors receive manuscripts in Mechanical Engineering from various academics, researchers and industry practitioners. The authors in the Journal of Mechanical Science and Engineering derived from various Higher Education institutions and national research institutes. Editorial Board of Journal of Mechanical stated that online media is both a scientific and specialized publishing scientific articles on original scientific research results (original) and review the field of mechanical engineering science. Publication covering area of research and review papers are as follows but not limitted to: Thermo-Fluid, ,Energy, Machine Design, Manufacture Engineering, Materials Engineering, etc
Arjuna Subject : -
Articles 4 Documents
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Search results for , issue "Vol 4, No 1 (2017): Journal of Mechanical Science and Engineering" : 4 Documents clear
The Records Of The Power Produce Of Solar Cell Of 50 Wp As Long As March 2016 At Kenten Area Darmawi Bayin
Journal of Mechanical Science and Engineering Vol 4, No 1 (2017): Journal of Mechanical Science and Engineering
Publisher : Universitas Sriwijaya

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Abstract

Solar cell of 50 WattPeak capacity is used on this research. The measurements are conducted for eight hours a day from 9.00 o’clock a.m. till 5.00 o’clock p.m.  This research is mainly aimed at to find out the electric power outcome of the solar cell at varies weather conditions in March of 2016 year. All of the equipments and measurements apparatus is stationed at Kenten BMKG Station of Palembang. The solar cell position is facing to the north at an angle of 10º. The total output of electric power is 4384,99 Watt and the total solar light intensity 134062,91 W/m² along March 2016. On full shinny and clear day the maximum power obtained is 49,2 W/hr and the sun light intensity is 1464,6 W/m². On cloudy day, the maximum power obtained is   42,8 W/hr and the sun light intensity is 1216,9 W/m². On rainny day the maximum power obtained is 34,1 W/hr and the sun light intensity is 1042,5 W/m². The results shown the relations between the power obtained and the light intensity, atmosfir temperatur and clouds in the sky
The Effect Of Sinking Parameters To Optimize Response At Edm Of Aisi H13 Using Taguchi – Fuzzy Method Diah Kusuma Pratiwi
Journal of Mechanical Science and Engineering Vol 4, No 1 (2017): Journal of Mechanical Science and Engineering
Publisher : Universitas Sriwijaya

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Abstract

The development technology in today's manufacturing is very fast, the desire of the market will need products and components with complex shapes and a high level of accuracy as well as hardness material which has high strength. High degree of hardness and precision widely used non-conventional sinking of EDM. End cutting depth (CDE), the maximum rate of erosion material(REM) and rate of electrode wear (RWE) as well as minimal surface roughness (SR) is the performance of the process of machine sinking EDM to be achieved. Aims of a study conducted to determine the contribution of the process parameters in order to reduce the variation of response parameters simultaneously and determine the value of setting the appropriate parameter process. The parameters were varied current, on time, off time and machining voltage. This research used experimental design of Taguchi method with orthogonal matrix L16 44. Combination of Taguchi-Fuzzy is used as a method of optimization by experimenting as much as two times. Optimization results show the contribution of each parameter on all responses simultaneously is current at 41.35%, energy on time amounted to 37.90%, off time amounting to 10,11%and machining voltage by 5%. End cutting depth (CDE) with a specific target, the maximum rate of erosion material (REM), ), the rate of wear of the electrode (RWE) and the surface roughness (SR) are both derived parameter value of at least current, 15A the energy on time 300ìs, off time 5ìs and machining voltage of 12V.
Analysis Of Corrosion Rate For Steel Concrete Reinforcing Pda Reinforced Concrete In Sea Water Media Helmy Alian
Journal of Mechanical Science and Engineering Vol 4, No 1 (2017): Journal of Mechanical Science and Engineering
Publisher : Universitas Sriwijaya

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Abstract

  There is so many buildings that built in corrosive environment, which is because lack of terrain or the functions of the buildings themselves. Many of the buildings use steel as reinforcement to strengthen the construction. The strength of buildings will Decrease if the reinforcing steel is corroded because the steel is very easily corroded. This research is to analyze kind of corrosion, corrosion rate of the steel frame in sea water or salty water. Plain reinforcing steel is used in this research with three different brands as specimens to compare the corrosion rate in sea water medium. Observation results show that the kind of corrosion that occurs in three different kinds of the steel is uniform corrosion. Calculation of corrosion rate in this research shows weight loss method. Calculation result of corrosion rate show that A steel brand has the highest endurance Compared to B and C brand. Difference of corrosion rate is because of chemical composition, Also in each kind of steel is added many elements such as chrome, manganese, copper and nickel to increase of corrosion endurance. Difference of elements that added in steel is Affect the corrosion endurance. Base on the research result can be concluded that corrosion endurance in every brand of stainless still in excellent category because the value of corrosion rate is between 0.02 to 0.01 mm / yr
Distance Effect Between Four Elliptical Pipes With Ratio Of 0,8 On The Pressure Arround Pipes Astuty Hadjar
Journal of Mechanical Science and Engineering Vol 4, No 1 (2017): Journal of Mechanical Science and Engineering
Publisher : Universitas Sriwijaya

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Abstract

Tube is a component of a heat exchanger tube is usually in the form of a small circle section pipe. But do not rule out the possibility of tube using a pipe that is not circle section  for example an elliptical section  to aims pressure as small as possible, because of the pressure resistor is small, the resulting pressure drop means smaller. Pipes used are a modification AW wavin pipe with an outside diameter of 6 cm into the elliptical section pipe with a ratio of 0.8. Tests carried out in Test engine Subsonic Wind Tunnel Section 40, two pipe by measuring angles and two more be used to measure variations in the distance between the pipes. From the test results obtained by the value of the pressure difference (ΔP) and temperature (°C), the value obtained is inserted into the equation calculation in order to get the coefficient of pressure (CP) getting bigger, but the speed (U) and the pressure coefficient resistor (CDP) smaller as increasing the distance between the pipes.

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