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Jurnal Engine: Energi, Manufaktur, dan Material
Published by Universitas Proklamasi 45 Yogyakarta
ISSN : 25797433     EISSN : 25797433     DOI : http://dx.doi.org/10.30588/jeemm
Core Subject : Science, Engineering,
Control & Systems Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
Jurnal Engine: Energi, Manufaktur, dan Material is registered with ISSN 2579-7433 (online) on The Indonesian Institute of Sciences (LIPI). This journal is under publishment of the Mechanical Engineering Department, Universitas Proklamasi 45 Yogyakarta. It is a scientific journal focusing on Energy, Manufacturing, Material, Mechanical, and Software Simulation. It provides a publishing platform for scientists and academicians to share, publish, and discuss all aspects of the latest outstanding development in the field of Mechanical Engineering.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 4 Documents
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Search results for , issue "Vol 1, No 1 (2017)" : 4 Documents clear
Pengaruh Perubahan Diameter Lubang Saluran Keluar Jetmain dari 2,5 mm menjadi 2,8 mm pada Karburator terhadap Kinerja Mesin Bensin Empat Langkah Satu Silinder pada Sepeda Motor Wardoyo Wardoyo; Andi Putro Sukendro
Jurnal Engine: Energi, Manufaktur, dan Material Vol 1, No 1 (2017)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (503.955 KB) | DOI: 10.30588/jeemm.v1i1.224

Abstract

This study aimed to compare the influence of the hole diameter of the outlet of the main jet from 2.5 mm to 2.8 mm on the carburetor to the engine performance and fuel consumption.The test is performed with the brand gasoline motor honda tiger type GL 200 R  four-stroke single cylinder. The materials studied were the main jet. Tests performed with standard conditions in without making any changes. Testing machine at the ready on a dynamometers test bed. Then do the testing phase and retrieval of data that is torque and fuel consumption. Torque (Nm) play a modified jet yield increase of 2.2% from the main jet standard. Power (kW) jet modification produces a maximum power of around 2.2% of the main jet standard. The rate of fuel consumption (mf) on the main jet modification is greater than the main jet standard. Fuel consumption (sfc) on the main jet modification will further increase the standard of the main jet. Calorific fuel (Qi) in the main jet modification is greater than the main jet standard. Jet played modifications that do not significantly change the main jet standard.
Pengaruh Paduan Serbuk Fe12% pada Aluminium terhadap Porositas dan Struktur Mikro dengan Metode Gravity Casting Sumpena Sumpena
Jurnal Engine: Energi, Manufaktur, dan Material Vol 1, No 1 (2017)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (501.148 KB) | DOI: 10.30588/jeemm.v1i1.225

Abstract

The purpose of this research is to know the effect of Fe12% powder alloy on aluminum to porosity and micro structure by gravity casting method. Metal Matrix Composite (MMC) is an engineering material formed from the combination of two or more materials to obtain new materials with better properties. Making of composite material with aluminum matrix or metal matrix composite (MMC) can be done by casting method. The composite forming elements are called boosters (fibers or particles) and binders (matrices). In the process of casting metal can occur porosity In the casting process with sand molds usually occur porosity, causing the mechanical properties of casting objects decreased. Porosity is caused by bubbles of gas, gas released by the core when exposed to metal liquid heat, resulting in pores or perforated defects.The process of smelting was carried out at the metal foundry laboratory of Mechanical Engineering UP 45 Yogyakarta. The smelting process uses a krusible furnace with coke fuel, on which it is placed kowi to place aluminum and iron powder to be melted. Aluminum and 12% iron powder are weighed in accordance with the volume of the pattern, so that the melt does not suffer from metal deficiency. Observation of porosity is done by looking visually on each side of the outer part of the casting object. Observation of microstructure using optical microscope is done by taking three samples of specimen castings that have been in the preparation of polishing machine and etching. The effect of Fe 12% alloys on porosity is the average porosity occurring on specimens A, B and C of 2,766 gr / cm3. The effect of Fe 12% alloys on micro structure is the spreading of Fe, Si and Mg elements evenly, but for the C specimens of Fe and Si bersenyawa, while the Al and Mg elements are separate.
Pembuatan Biofuel dengan Proses Pirolisis Berbahan Baku Plastik Low Density Polyethylene (LDPE) pada Suhu 250 °C dan 300 °C R. Soelarso Pani; Heribertus Sukarjo; Yustinus Sigit Purwono
Jurnal Engine: Energi, Manufaktur, dan Material Vol 1, No 1 (2017)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (119.263 KB) | DOI: 10.30588/jeemm.v1i1.226

Abstract

The level of fuels’ consumption as an energy source in the world is currently experiencing huge increase. When the use of the oil as fuels is not managed properly, it can be sure that the oil will run out and triggered the world’s energy crisis. Currently, plastik waste become a serious problem that can lead into the environment contamination if not properly managed. One of the solution to overcome the energy crisis and environmental polution is to find and create a renewable energy such as biofuel. The research was conducted in order to know the effect of combustion temperature on pyrolisis process based on the Low Density Polythylene (LPDE) plastic material to produce biofuel. The eraly stages of the research was start with pyrolisis process of the LDPE plastic which comes from the bottle and glass logo waste with the reactor temperature of 250 ºC and 300 ºC. The weight of each material was 2 kg. After getting the crude oil, the researcher examined the crude oil characteristic from pyrolisis process using viscosity test, density test, caloric value test, and flash point test. From the test results, the test results that the gigher the temperature in the pyrolisis reactor, the production of the biofuel oil from pyrolisis were more and have a better quality. The result of the experiment pointed out that the higher the pirolysis reactor temperature , the greater the yield and the better quality. The pyrolisis result was crude oil with each of the weight was 240 ml on the 250 ºC reactor temperature and 260 ml on the 300 ºC reactor temperature. The viscosity test showed the results 3.128 mm²/s on the 250 ºC reactor temperature and 2.698 mm²/s on the 300 ºC reactor temperature. The density on the 250 ºC reactor temperature was 0.9984 and 0.9085 on the 300 ºC reactor temperature. The caloric value test on the 250 ºC reactor temperature showed the results 9084.101 kal/g on the first test and 8765.253 kal/g on the second test. Whereas the caloric value test on the 300 ºC reactor temperature were 9588.312 kal/g on the first test and 9507.779 on the second test. The results of the crude oil flash point test on 250 ºC and 300 ºC showed the same temperature result at 28.5 ºC. From the characteristic test results it can be concluded that the crude oil from the pyrolisis process has approaching the kerosene characteristic and entered into the fuel category.
Pengaruh Korosi terhadap Kekuatan Tarik Macaroni Tubing P110 1.900" x 4.19 lbs/ft Heribertus Sukarjo; Adi Surahman
Jurnal Engine: Energi, Manufaktur, dan Material Vol 1, No 1 (2017)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (876.001 KB) | DOI: 10.30588/jeemm.v1i1.223

Abstract

Macaroni Tubing P110 1.900″ x 4.19 lbs/ft which applicated at Snubbing and Oil and Gas industry, exposed to Corrosive fluids such as NH4Cl, KCl and Sea Water. Macaroni Tubing P110 1.900″ x 4.19 lbs/ft also has mechanical treatment especially Tensile force. That’s why effects of NH4Cl, KCl and Sea Water fluid to Corrosion Rate and Tensile strength Macaroni Tubing P110 1.900″ x 4.19 lbs/ft shall be known. Starting from those issue, Immersion corrosion testing using NH4Cl, KCL and sea wáter instruments is conducted, and Tension testing is performed to the material after exposed to those corrosive fluids. Immersion corrosion testing method is used to analyze corrosion rate and Tension testing is used to analyze the tensile strength. The result shown that the fastest Corrosion rate is material which immersed to 6% NH4Cl with average corrosion rate value 0,210 mm/year. In second position is material which immersed to 3% KCl with average corrosion rate value 0.132 mm/year and the latest is material which immersed to sea water with average corrosion rate value 0.095 mm/year. Meanwhile, tensile strength test shown 676.53 Mpa for Raw Material specimens, 664.19 Mpa for specimens which immersed to 3% KCl, 653.51 Mpa for specimens which immersed to 6% NH4Cl and 669.55 Mpa for specimens which immersed to sea water. From those three specimens which immersed to corrosive fluid shown tensile strength decreased than Raw Material tensile strength and Specimen which immersed to 6% NH4Cl shown the biggest value.

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