Jurnal Energi dan Teknologi Manufaktur (JETM)
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OTOMATISASI SAKLAR KENDARAAN BERMOTOR RODA 2 BERBASIS SISTEM SENSOR PENDETEKSI SUARA NIRKABEL SEBAGAI PENGGANTI SAKLAR KONVENSIONAL
No full textThis project aims to change the conventional ignition mechanism to beautomatic by utilizing the microcontroller-based technology. The driver startsthe engine using a smartphone microphone and bluetooth smartphone thentransmitted to the HC-06 bluetooth module that connected to the Arduino uno tomove the 5v relay module wirelessly The driver can start the engine by openingthe Arduino bluetooth voice controller application on the smartphone and thencommands the sound then sends a signal to the Arduino Uno to start the enginewithout using a conventional ignition key. Wireless communication between thesmartphone and the actuator on a motorized vehicle can function properly if usedwith a range of distances from 1 meter - 50 meters with the condition that thesensor has been applied to the vehicl
OPTIMALISASI TEKANAN SHOCK ABSORBER DAN TEKANAN PEGAS COIL TERHADAP GETARAN MOBIL
Full text linkSafety and comfort are the valuable factor for the driver. One of the safety factor refers to the steering accuracy. Steering wheel hardness must be soft when turning but remain stable in straight track. The comfort factor refers to the bouncing effect when the car passing in rough track. Those two factors is depend on the shock absorber components. This study aims to know the optimum gas pressure and spring pressure to obtain the maximum vibration reduction. This study use the experimental methods use the 6 bar, 8 bar, and 10 bar of absorber pressure. The spring pressure used in this study is 20 , 25 dan 30 (Kg/cm2). The data obtained were analyzed with MINITAB software. From the results of research on Optimizing Shock Absorber Pressure and Coil Spring Pressure Against Car Vibrations can be concluded as follows: 1. There is an influence of absorber pressure and spring pressure on the suspension on the amount of vehicle vibration. The optimum absorber pressure is 10 (bar). 2. The optimum coil spring pressure at 24 (kg / cm2)
RANCANG BANGUN ALAT PENGADUK SABUN CAIR BAHAN BAKU MINYAK SERAI WANGI
Full text linkThe process of making liquid soap from citronella oil is an interesting thing to know. This study aims to design, create, test and analyze the time and rpm rotation of the most efficient liquid soap mixer machine. Soap is an alkaline local salt (usually a potassium salt) of fatty acids, mainly containing C16 salt (palmitic acid) and C18 (stearic acid) but can also contain several carboxylates with lower atomic weights (Fessenden, 1994 and Ketaren, 1986). Traditionally, lemongrass is used as a flavor generator in food, drinks and traditional medicine (Wijayakusumah, 2002). Fragrant lemongrass is also used as a flavor generator used in spicy sauce, fried chili sauce, chili paste and fish sauce (Oyen, 1999). Data collection observed were device capacity, yield. From the results of the study, the effective capacity of the equipment was 397.1 L / hr.
Keywords: liquid soap, citronella oil, effective capacity of the tool, yield
Pengaruh Variasi Intake Lobe Lift, Exhaust Lobe Lift Dan Celah Katup Terhadap Konsumsi Bahan Bakar Pada Sepeda Motor
Full text linkMotorbikes that are very much operated every day need fuel oil which is a fossil fuel that has been depleted and cannot be renewed. With the current conditions, it is necessary to control fuel consumption on a motorcycle. Setting the intake lobe lift, the exhaust lobe lift and valve gap have a positive impact on fuel consumption. There has been a lot of research about setting the intake lobe lift, the exhaust lobe lift and valve gap. The number of conventional motorcycle vehicles that are still operating requires special arrangements and deeper studies to be able to be economical in fuel consumption. The objectives of this study are: (1) to identify the factors that cause high fuel consumption. The research method uses the experimental method. By using pertamax. . The results showed that: 1) modification 2 uses the longest fuel consumption, and 2) there are effects of variations in the intake lobe lift and exhaust lobe lift on fuel consumption, 3) there is an effect of adjusting valve gap variations on fuel consumption, 4) there are the effect of variations in the intake lobe lift and exhaust lobe lift and adjustment of valve gap variations on fuel consumption
PENGARUH PARAMETER LAS PADA SAMBUNGAN PLUG WELDING LOGAM TAK SEJENIS ANTARA CARBON STEEL DAN STAINLESS STEEL DENGAN FILLER E308L
Full text linkPlug welding is one of the welding methods of joining material with filling techniques using filler metal. This study aims to determine the effect of variations in electrical current and depth of artificial penetration of Ø8 mm holes on the failure mode and tensile load bearing capacity of dissimilar metal plug welding connections between SS 304 series stainless steels and SS 400 series carbon steels. used are 200, 215 and 230 A while the variation in depth of artificial penetration with diameter of Ø8 mm is 0, 1 and 2 mm. The results of this study indicate that the variation of the welding current without any artificial penetration (0 mm) results in an interfacial failure failure mode. While the existence of artificial penetration with a depth of 1-2 mm produces pull out failure mode. The results of the shear tensile test showed that the highest welding strength was obtained at a variation of 230 A with a hole depth of 1 mm at an average of 12.6 kN while in the hole depth parameters 0 and 2 mm the weld strength values were obtained at a mean of 5.6 and 7.8 kN.
 
Hubungan Antara Arah dan Susunan Bulu Ayam Potong terhadap Kekuatan Lentur Komposit
Full text linkThe amount of chicken production and consumption produces large amounts of waste as well. The amount of available chicken feather waste is not used properly so it needs an alternative to utilize chicken feather waste to be something more useful and innovative, one of which is to waste broiler chicken feathers.
The main objective of this study was to obtain a variety of composite boards made from resin with broiler chicken feather filler instead of tile tiles. The making of composite specimens from polyester resin with yucalac 157 BQTN-EX type by adding different prepared chicken feather fillers in order to find out the best flexural and compressive strength from one variation of chicken feather filler arrangement. Composite specimens were made with the standard ASTM-D size 7264. Analysis of the test data using the TWO-WAY ANOVA approach ¬ to determine the effect of the transmission of chicken feather filler on flexural strength and press.The results of the flexural test obtained the lowest yield strength with a composition in the direction of 0 ° worth 11.3 MPa and the highest yield strength with a 45 ° alternating composition worth 54.5 MPa. For the compressive test results obtained the lowest compressive strength with a random composition of 23.9 MPa and the highest compressive strength of 34.5 Mpa. For the bending test and press on the tiles, the value of 1.1 MPa and 0.29 MPa means that the composite value is higher than the value of tile tiles
PENGUJIAN DAN PERAWATAN MESIN GRANULAR
Full text linkThis paper discusses the granulator machine testing process. This test aims to determine the process of occurrence of granular. Granular pellets are one form of feed pellets, granular (rounded) and light in weight. Granular pellets are not easy to sink but are easily broken down in water. This type of pellet is made without going through the process of pressing, so that it can produce feed grains that are light weighted, not easily submerged but easily decomposed in water. The goal is to determine the optimal state of the granulator machine with three angular tilt positions, it can perform maintenance on the granulator machine. The granulator machine testing process is carried out by means of the plate angle measurement process, the water mixture measurement process, the plate speed measurement process. Material used for the testing process uses flour and water. While the tools used in the granulator machine testing process are spray, 14 key, sieve, and container. After testing at 3 angles at an angle of 25o, angle of 30o and angle of 35o the authors conclude that this machine can produce small granules at a slope of 250 with an engine speed of 17 rpm and average weight of granular which is produced 236 grams. While the results of hourly 3 kg / hour
Analisis Thermal Kolektor Pemanas Air Yang Dilengkapi PCM Parafin – Mentega
Full text linkKebutuhan energi semakin meningkat dengan adanya kemajuan teknologi, sehingga manusia berusaha untuk mengeksploitasi sumber energi secara maksimal. Oleh karena itu perlu inovasi baru untuk menggantikan sumber energi tersebut, salah satunya adalah penggunaan Phase Change Material (PCM) pada kolektor pemanas air. Pada penelitian ini PCM yang diguakan adalah parafin dengan penambahan mentega. Penambahan mentega pada parafin digunakan untuk meningkatkan konduktivitas termal dari PCM parafin. Tujuan penelitian ini untuk mengetahui karakteristik PCM dengan variasi campuran bahan yaitu mentega - parafin dan efisiensi kolektor pemanas air. Persentase campuran mentega dan parafin sebesar 10%, dan 20% dari volume total. Berdasarkan penelitian efisiensi tertinggi terdapat pada kolektor pemanas air yang dilengkapi PCM campuran parafin-mentega 20% sebesar 82,09%
Pengaruh Variasi Radius Sudu Turbin Angin Darrieus Tipe Sudu-J
Full text linkUtilization of alternative energy, therefore this wind turbine is used as an alternative energy power plant. So this experimental study is used to determine how much influence on the performance of the Darrieus type J-blade vertical shaft wind turbine by varying the blade radius. The method used is a true experimental research method. The independent variables in this study are variations in wind speed of 3, 4, 5, 6, and 7 m / s. The dependent variable in this research is shaft power and efficiency. Then the controlled variables in this study were the number of blades 3 and the front radius of the blade: 5, 10, and 15 mm. The test results and data processing shows that the blade radius of the Darrieus J-blade type of wind turbine affects the performance of the Darrieus J-blade type wind turbine. In testing the highest value was achieved at a blade radius of 15 mm with a wind speed of 7 m / s, namely the shaft power value of 0.323 Watt and the efficiency value of 4.673%
ANALISA BENTUK PERMUKAAN PELAT PENYERAP SPONGE TERHADAP KINERJA SOLAR STILL DOUBLE SLOPE TIPE V
Full text linkThis study aims to determine the surface shape of the sponge absorbent plate to the performance of the solar still double slope type V. The surface shape of the sponge absorbent plate uses sponge models of triangles, fins, waves and flat with a thickness of 5 cm. experimental Tests methods use direct solar radiation and using sea water is used as raw material. The experiment produced 4,527 liters of condensate water with highest solar still efficiency of 50.14% using a sponge wave absorber plate with an area of 13,940.76 cm2. The Sea water disability to flow capillary to the surface of the absorbent plate affecting the performance of solar still