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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
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Articles 4 Documents
 1 
Search results for , issue "Vol 2, No 1 (2015): Journal of Mechanical Science and Engineering" : 4 Documents clear
Mechanical Behavior of Medium Carbon Steel welded with SMAW And Corroded with Sea Water Diah Kusuma Pratiwi; Rasyidi Rasyidi
Journal of Mechanical Science and Engineering Vol 2, No 1 (2015): Journal of Mechanical Science and Engineering
Publisher : Universitas Sriwijaya

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Abstract

The problem of  metal corrosion is a very serious to be observed, especially the corrosion of medium carbon steel because it can reduce the economic value of the metal. Corrosion of carbon steel is influenced by the environmental conditions. This paper discusses the effect of the corrosion rate of medium carbon steel with SMAW welding and corrodes it with sea water during several hour. Electrodes of AWS A5.1E7016 type were used in the welding. The test results show that the medium carbon steel which was corroded with sea water has small weight loss. It seem that the weight loss has small influence on the mechanical behavior of the metal. For the welded medium carbon steel, the ultimate strength and surface hardness are smaller than the un-welded one. The microstructure of welded medium carbon steel has unsimilar structure with un-welded steel because it has about the same amount of ferlite, ferrite and martensite.
Darrieus Water Turbine Performance Configuration of Blade Kaprawi Sahim; Dyos Santoso; Jaini Jaini
Journal of Mechanical Science and Engineering Vol 2, No 1 (2015): Journal of Mechanical Science and Engineering
Publisher : Universitas Sriwijaya

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Abstract

Horizontal axis Darrieus water turbines, very suitable for use in river flows in the utilization of the kinetic energy. Water turbines studied in this test, is a six-blade Darrieus water turbines. Tests using three configuration of blade arrangements, with conditions rotor sink and drown half. Tests carried out in the watershed Ogan at the village Tabuan Ogan Komering Ulu of South Sumatra Histories. Research results obtained on each configuration of blade, the condition of the rotor and the rotor sink half drowned. High efficiency configuration occurs in parallel arrangement with the condition of the rotor blade sank half.
Effect of Cooling Water Fraction Of Salt in Low Carbon Steel Properties Ahmadin Ahmadin; Diah kusuma pratiwi
Journal of Mechanical Science and Engineering Vol 2, No 1 (2015): Journal of Mechanical Science and Engineering
Publisher : Universitas Sriwijaya

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Abstract

Low carbon steel plate is widely used in the field of construction that require high hardness and ductility . One method used to increase the hardness of the low carbon steel plate that is by quenching water plus salt . The results showed that the quenching is based on a study of 10% salt water has a hardness of 168 VHN with σu = 33.62 , ε = 12 % and the lowest is 15 % salt water quenching VHN 101 σu = 30.30 and ε = 7.30% composition of the study above was 10 % salt solution in the cooling water will cause a decrease in mechanical properties .
THE EFFECT OF STEERING BLADE ANGLES OF HELICAL TURBINE FOR POWER GENERATION IN IRIGATION DAM OF Riman Sipahutar; Niharman Niharman
Journal of Mechanical Science and Engineering Vol 2, No 1 (2015): Journal of Mechanical Science and Engineering
Publisher : Universitas Sriwijaya

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Abstract

The Gorlov vertical axis water turbine is suitable to harness the water flow in the creation of kinetic energy for the irigation dam. The turbine tested in this study was ther Gorlov helical turbine blade with steering angles of 00, 300, 450 and 600 turbine diameter (d) of 0.30 m, height (h) of 0.50 m and the NACA 0020 profile. The testing was conducted on the irigation dam of Seluma Bengkulu. The water flow showed in the velocity (Uair) of  0.85 m / s and a round (n) of 110 rpm. The results were achieved by setting the blades in steering torque coefficient (Ct) of 0.309 are turbine efficiency (ηt) of 28.5% and a power turbine (Pt) of 13.699 Watts.

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