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Jurnal Energi dan Teknologi Manufaktur (JETM)
Published by Politeknik Negeri Malang
ISSN : 26208741     EISSN : 26207362     DOI : 10.33795/ath
Core Subject : Science, Engineering,
Automotive Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
Jurnal Energi dan Teknologi Manufaktur adalah jurnal bidang Teknik Mesin yang diterbitkan oleh Jurusan Teknik Mesin, Politeknik Negeri Malang. Jurnal Energi dan Teknologi Manufaktur diterbitkan dua kali dalam setahun pada bulan Juni dan Desember. Kami menerima artikel hasil penelitian ilmiah di bidang Teknik Mesin khususnya: Energi Terbarukan, Pemeliharaan Mesin Konversi Energi, Inovasi Teknologi Manufaktur, Pemeliharaan Mesin Manufaktur dan Analisis Sistem Manufaktur.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 7 Documents
 1 
Search results for , issue "Vol 1 No 01 (2018)" : 7 Documents clear
Perencanaan Turbin Air Kapasitas 2 x 1 MW di PLTM Cianten 1 Kabupaten Bogor Asrori .; Eko Yudiyanto
Jurnal Energi dan Teknologi Manufaktur Vol 1 No 01 (2018)
Publisher : Polinema Press, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jetm.v1i01.4

Abstract

Minihidro Cianten 1 Power Plant (PLTM C-1) capacity 2 x 1 MW, located in Cianten river, Cibunian village, Pamijahan district, Bogor district. Preliminary planning data is with design head (Hd) = 27.7 m, design discharge per unit (Qd) = 4.0 m3 / s, power house elevation = +529,0 m. Turbine planning includes calculation of rated power output, type selection and number of turbines, specific speed velocity and runaway speed, runner diameter, turbine elevation setting, spiral casing and draft tube dimensions and pre-powerhouse design. Turbine performance and stability including pressure rise, speed rise and weighted average efficiency are also planned. Planning is based on calculations from international standard hydro powerplant planning guidance. The results of the calculations are verified by software and catalog of turbine manufacturers. The turbine specification results are as follows: 2 horizontal francis units, rated output power / unit (Pr) = 1000 kW (1 MW), turbine spin (n) = 600 rpm, turbine efficiency (T) = 0.92, (ns) = 298.6 rpm (M-kW), runaway speed = 1219 rpm, runner diameter = 0.769 m, runner weight (WR) = 294.05 kg, total turbine weight (WT) = 3060,37 kg. The stability of turbine operation is declared safe where the value of speed rise and pressure rise are 44.39% and 19.39% respectively. While the performance as a warranty from turbine manufacturers expressed with the value of weighted average efficiency of 88.67%.
Analisis Kenyamanan dan Kestabilan Kendaraan Roda Dua Dalam Tinjauan Satu Derajat Kebebasan Pipit Wahyu Nugroho
Jurnal Energi dan Teknologi Manufaktur Vol 1 No 01 (2018)
Publisher : Polinema Press, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jetm.v1i01.5

Abstract

The two most important parameters in driving are comfort and stability. To get the best value from that parameter, then the role of the vehicle suspension system is very important to reduce the vibration due to road waves and keep the wheels sticking above the road. This study studied the effect of suspension type on comfort level and vehicle stability. The type of suspension is related to the value of spring stiffness and its damping value. While the vehicle is modeled in one degree of freedom. The test is carried out with vehicle loading including mass of vehicle and passenger for each type of suspension, ie soft, medium and hard. Vibration analysis is done using Matlab Simulink to get the acceleration response and its deflection response. The vibration response graph shows the comparison of comfort level and vehicle stability on the road profiles modeled in step, impulse, and sinusiodal functions. From the simulation results obtained that Soft and Medium Suspension can handle the vibration very well especially from the level of response speed for a relatively flat road. Meanwhile, Suspension type Hard very good damp vibration for high wavy road.
Meningkatkan Daya Mesin Diesel jenis Common Reel yang dilengkapi Turbocharger dengan Menaikkan Suhu Bahan Bakar dan Suhu Udara Bambang Irawan
Jurnal Energi dan Teknologi Manufaktur Vol 1 No 01 (2018)
Publisher : Polinema Press, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jetm.v1i01.6

Abstract

This research aims is to increase engine power by raising the air temperature and fuel temperature into the engine and its effect on the resulting of SFC. Diesel engines that are use turbocharger, the air temperatures have increased but the fuel temperature is still fixed. The problem is how if the air temperature and fuel temperature are raised whether the engine power will increase and the SFC will change. This study was conducted with experiments using a car that the air temperature is adjusted up to 100oC and the fuel temperature that goes into the engine is made a maximum of 70oC. The test results show that with rising air temperatures and fuel temperatures going into the average power engine will raise and save fuel, power and saving SFC occurs at 90°C and 70oC fuel. Rotation of engine that can produce power and fuel-efficient is at around 2000 rpm.
Optimalisasi Variasi Volume Resin Komposit Serat Limbah Karung Glangsing Utsman Syah Amrullah; Riyanto Heri Nugroho
Jurnal Energi dan Teknologi Manufaktur Vol 1 No 01 (2018)
Publisher : Polinema Press, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jetm.v1i01.7

Abstract

The waste of sacks glangsing of rice, fertilizer, sugar, animal feed and others can cause serious problems, example in the household scale causes the storage process in the warehouse very difficult because takes place, also invites mices to come. And on a larger scale the excessive use of sacks of glangsing causes waste and pollution to the soil due to the difficult and time-consuming decomposition. Efforts to utilize waste sacks glangsing are make it as a reinforcing fiber composite material. It is expected to be an alternative fiber replacement fiber material available on the market. The stiffness or flekstural test is taken to show comparison the composite. The composite material (with glass fiber reinforce) which made in equal thickness and simultaneously, showed that the resin volume of 15 cc applied to fiberglass fiber with an area of ​​180 x 180 mm, with 3 layers have a deflection 1.2 mm at 31.5 grams load. While the volume of 30 cc resin gives a deflection 0.25 mm at the same load. While specimens that use glangsing sack fiber did not provide a good enough stiffness. At 31.5 gram load the deflections are very large 12 mm for 15 cc resin volume, and 9.8 mm for 25 cc resin volume, and 4.5 mm for resin volume of 30 cc, and 4.5 mm for resin volume 45 cc. Beside a large deflection, the composite with sack glangsing fibers is apparently subjected to delamination (exfoliation). Therefore, the use of glangsing sack fiber is not recommended.
Desain dan Analisis Perubahan Fluks Magnet Terhadap Efek Peredaman Pada Prototipe Suspensi Pintar Sadar Wahjudi
Jurnal Energi dan Teknologi Manufaktur Vol 1 No 01 (2018)
Publisher : Polinema Press, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jetm.v1i01.8

Abstract

The vehicle is one of basic needs for supporting mobility of people. Comfort and safety are demanded in every vehicle, especially in its suspension system. The existing suspension systems can’t maximize comfort and safety because it is still hydraulic and pneumatic based, without magnetic system. The purposes of the analysis is building magnetic suspension system with variations at the amount of coil and analyzing absorbing time. The methods of the analysis are determining concept, making the designs, determining components specification, making device block diagram, making wiring diagrams, making the device, taking the absorbing time datas, and the analyzing the data. The results of the analysis are the amount of coil is straight compared to the magnetic force and absorbing time. The most significant solenoid is the one which has 900 coils and has absorbing time at 9.6 seconds.
Pengaruh Variasi Lip Thickness Pada Nozzle Terpancung Dengan Swirl Terhadap Kestabilan Api Difusi Concentric Jet Flow Kris Witono; Akhsanu Takwim
Jurnal Energi dan Teknologi Manufaktur Vol 1 No 01 (2018)
Publisher : Polinema Press, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jetm.v1i01.10

Abstract

One of the factors that affect flame diffusion characteristics is the geometry of fuel nozzles in the installation of the combustion system. The nozzle shape greatly affects the turbulence that occurs between fuel and air. This process causes the formation of flow recirculation zones. This process thus produces homogeneous mixing and obtains near perfect combustion. The recirculation zones are zones arising from breaking the flow rate. So as to cause a vortex and backflow around the tip of the nozzle. It is this feedback which inhibits and simultaneously suppresses the flame so that the flow rate of the fuel mixture and the air is maintained lower or equal to the flame velocity. In this study, lip thickness variations in nozzles were used with swirls with variations of 0, 4, 8, 12, and 16 mm to determine flame stability of concentric jet flow diffusion. Fuel velocity and air are varied to obtain flame stability data. In addition, to support and reinforce the results obtained from this study, direct photograph and shadowgraph methods are used to obtain flow pattern visualization. The result of the research shows that the stability of flame concentric jet flow diffusion has increased along with the decreasing of lip thickness in nozzle. The largest flame stability area is obtained in 4 mm thick lip thickness.
Pengaruh Dimensi Atom Target D.C. Magnetron Sputtering Terhadap Sifat Mekanis Baja AISI 410 Gaguk Jatisukamto
Jurnal Energi dan Teknologi Manufaktur Vol 1 No 01 (2018)
Publisher : Polinema Press, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jetm.v1i01.11

Abstract

Micro machining technology uses AISI 410 steel as tools and surgical equipment. AISI 410 steel is hardenable so it is relatively easy to repair its mechanical properties. The weakness of heat treatment in AISI 410 steel for small dimensioned components causes distortion. Therefore, in this research, an effort to improve the mechanical properties of AISI 410 steel using physical vapor deposition (PVD) technique. The method of this research is to deposition Ti-N, Cr-N, W-N and Al-N with D.C magnetron sputtering technique. The sputtering process is carried out at room temperature by bombarding the target material (coating) with Argon gas, so that the bombed atoms will be deposited on the surface of the substrate (coated material). The results showed that the film layer deposition properties on the surface of AISI 410 steel were influenced by the characteristics of the formed nitride layer and the size of the atoms that struck the surface of AISI 410 steel.

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