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R.E.M (Rekyasa Energi Manufaktur) Jurnal
Published by Universitas Muhammadiyah Sidoarjo
ISSN : 25275674     EISSN : 25283723     DOI : https://doi.org/10.21070/r.e.m
Core Subject : Engineering,
Engineering
Focus and Scope Aim: to facilitate scholar, researchers, and teachers for publishing the original articles of review articles. Scope: Mechanical Engineering include: Energy Conversion Renewable Energy Manufacturing Materials and Design Engineering Mechatronics
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 6 Documents
 1 
Search results for , issue "Vol 2 No 2 (2017): December" : 6 Documents clear
Analisa Kualitas Semen Melalui Pengukuran Konstanta Dielektrik Dan Resistivitas Bowo Eko Cahyono; Misto Misto; Holili Nur Arivah
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 2 No 2 (2017): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v2i2.1199

Abstract

Cement is an adhesive material that is capable of tying dense ingredients into one solid unity, cement was used as construction materials. Any materials including cement has physical properties and is largely determined by the magnitude of the internal condition of the materials. This research was conducted to find out the quality of cement by using measurements of the dielectric constant and resistivity values. The materials examined in the form of 3 brands of cement mixed with sand and water. This research method using capacitive and resistive by using an oscilloscope as a voltage reader. Note that the three cement brands have the same dielectric constant value i.e. amounting to 0.30 and resistivity value of 30.00 Ωm on day 28. The relationship between the dielectric constant value against the addition of age showed a decrease, while for values of resistivity shows an improvement. Onthe measurement of the dielectric constant shows that cement A brand more quickly achieve drying compared to brand B and brand C, as for the measurements of the resistivity shows that cement brand C more quickl yachieve drying compared to cement brand A and brand B.
Pengaruh Jarak Tempuh Terhadap Viskositas Oli A, B dan C Pada Sepeda Motor Yamaha Mio Tahun 2011 Erwin Susetyo Hadi; Mulyadi Mulyadi
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 2 No 2 (2017): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v2i2.1038

Abstract

Lubrication can be interpreted as the provision of lubricants on a machine with the aim to prevent direct contact between the moving surfaces. Viscosity is a very important trait in lubricating oils. The viscosity of lubricating oil indicates the ability and ease of lubricating oil flowing. Distance is a number that indicates how far an object changes position through a particular path. This research method using Yamaha mio 110 cc motorcycle. Using SAE 10W-40 oil with the initial viscosity of oil A(3.17), B (5,18 ), C (15,0 ). Then tested with a distance of 30.60 and 90 km with a constant speed of 70 km / h and then taken the oil sample. The result of the test is calculated using the viscosity formula with the law of Stockes. When it was on 90 km speed, Oil C still shows the highest viscosity with a value of 2.55, while oil A remains the lowest viscosity with a value of 1.70 . This study shows that the higher the viscosity affects lubrication. The more oil layers, the lubrication can do better and the duration to changes the oil will affected too (longer).
Karakterisasi Laju Korosi Baja ST 40 Berlapis Polyester Putty Dalam Lingkungan Air Payau Muhammad Jamaluddin Anwar; Edi Widodo
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 2 No 2 (2017): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v2i2.951

Abstract

The attack caused damage of corrosion (rust) is the general problem that causes the degradation of the material as the interaction with the environment and shorten the lifetime of material. Steel ST 40 is a common material used in the industrial, shipping, engineering products, home wares and others. Prevent the occurrence of direct contact with the outside environment by using a coating of polyester putty, serves to prevent the occurrence of oxidation reactions of the nature of corrosion. Coating using polyester putty give influence on the material test of resistance to corrosion. The missing mass on the specimen using a coating of polyester putty of mass loss reached 2,090 mg. whereas in the specimen undergoes the smallest mass loss of 1,090 mg. Whereas in the material without upholstery polyester putty of mass lost most of the specimens that do not use coating polyester putty with the missing mass reach 4,390 mg. Whereas in the specimen menggalami the smallest mass loss of 3,560 mg. On the specimen that is experiencing the highest rate of corrosion occurred in unpublished material using polyester putty of 26.11 Mpy whereas the smallest lajukorosi reached 21.52 Mpy. While the biggest missing mass on a material without polyester putty of 0.98 Mpy, the rate of corrosion of the smallest reach 0.56 Mpy.
Studi Kasus Analisis Kegagalan Material Piston Sepeda Motor Munaji Munaji; Yoyok Winardi
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 2 No 2 (2017): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v2i2.1190

Abstract

This paper presents the failure anaylisis on the motorcycle’s piston.The analysis procedure consists of physical observation (metallography), mechanical testing (hardness testing, and chemical composition testing (spectrometry). Result physcal observation shows there are scratches and changes in color on the surface of the piston wall. Based on spectrometer test, piston is made from Al-Si-Cu-Mg alloy with AA336.0 series. Hardness vickers testing showed the distribution ofHVN on the walls and heads of pistonare not decrease significantly. Hardness on the head of piston is 136.06 HVN, while on the wall of piston is 134.3 HVN. Based on the analysis, the failure is caused by lubrication failure that causes piston over heat and burning.
Model Energi Pembangkit Listrik Tenaga Surya di Pulau Giliyang Madura Nurhadi Nurhadi; Mochammad Ali M; Daif Rahuna; Sutopo P Fitri
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 2 No 2 (2017): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v2i2.948

Abstract

Giliiyang Island is a famous island that has the highest oxygen content in the world, and very beautiful sea, but the location is far from PLN / elctictric grid system. It is necessary to develop environmentally friendly alternative energy. One of alternative energy offered is solar energy. Solar energy is energy that’s form of light and heat from the sun. This energy can be utilized using a range of technologies such as solar heating, solar photovoltaic, solar thermal power, solar architecture, and artificial photosynthesis. Based on the calculation is known that the electrical energy demand for Giliiyang Island is around 1984 kWh. The design of two off-grid solar power systems which each capacity about 1 MWp will require 3000 m2 of land with 780 solar panels that have an intensity of 800 W / m2. Deep cycle battery with 24 V DC 200 AH as storage media required about 504 pieces.
Frais chisel Shaft Strength Calculation on the Model in the Laboratory Hydrodynamic Suyadi Suyadi; Hardi Zen
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 2 No 2 (2017): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v2i2.1189

Abstract

A process process in the manufacture of milling machines Keyway (slot) propeller shaft models - ship propeller is routine work done in BTH-BPPT. The main work in this process requires the use of a standard cutting blade milling (Hight Speed Steel), therefore the technical study on the magnitude of cutting force is needed in predicting the service life of the milling blade. To get the service life of the chisel eye analysis in the process of cutting with a knife cut milling standard (HSS) where the variables selected in this machining processes such as engine speed is very influential parameter to change the style, torque and strain. The results showed that for the process sharpener at rpm 400 rpm and 500 rpm eyes chisel operating under normal conditions, while at rpm 785 rpm chisel eye operating at extreme conditions in which the generated strain of 39.6 Ksi and lifespan chisel 138 operational days 4,5 frais chisel or a calendar month.

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