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ROTOR: JURNAL ILMIAH TEKNIK MESIN

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Published by Universitas Jember

ISSN : 1979018x EISSN : 24600385 DOI : -

Automotive Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

ROTOR merupakan jurnal yang diterbitkan oleh Jurusan Teknik Mesin Universitas Jember yang memuat artikel ilmiah dalam bidang Konversi Energi, Design/Perancangan, Teknik Produksi, Material serta bidang lain yang terkait dengan Teknik Mesin. Semua naskah yang diterima ROTOR diterbitkan secara global dalam bentuk elektronik. Hasil penelitian yang diterbitkan dalam jurnal ini diharapkan dapat menambah khasanah pengetahuan di bidang Teknik Mesin serta menjadikan sarana bagi para profesional baik dari dunia usaha, pendidikan, ataupun peneliti untuk menyebarluaskan perkembangan ilmu pengetahuan dan teknologi di bidang Teknik Mesin melalui publikasi hasil penelitian.

Arjuna Subject : Teknik (semua kategori) - Teknik Mesin

Articles 333 Documents

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OPTIMASI KUALITAS KEKASARAN PERMUKAAN PADA PROSES ELECTROPLATING MATERIAL SS400 MENGGUNAKAN METODE TAGUCHI Mohammad Hartono; Hari Arbiantara Basuki; Andi Sanata
ROTOR Vol 12 No 1 (2019)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Quality of product in various industries, especially in metal industry is the most attention so the product can compete and attract consumers. Surface roughness is one of the demand that must be fulfilled because it can be the initiation of cracks, especially when material receives recurring and fluctuating loading. Therefore, low surface roughness can produce a product with longer lifespan material. The goal of this study is to determine the most optimal combination of electroplating process with factors variety of voltage (volts), temperature (℃), and time of immersion (minutes) to produce a low values of surface roughness. This study uses an experimental design with Taguchi method. Contribution factors of control that produce the surface roughness values were influenced significantly by control factor voltage (volts) amounted to 77.31% with an average roughness value of 1.29 μm. This is due to the increase in voltage which causes the deposition of electrolyte ions which is faster in the deposition structure of the specimen. Where as other control factors were not effected significantly on the temperature control factor amounted to 4.85% with an average roughness value of 1,32 μm. These results are possible because the temperature variations used (40℃ to 50℃) are still within the optimum operating temperature. And the other control factors is immersion time amounted to 10.13% with an average roughness value of 1,32. The result ware obtained because the length of coating time affected the quantity of deposition of nickel ions on the surface of the specimen. The result of optimal condition is the voltage level 2 (6 volts), the temperature at level 2 (45℃), and the immersion time at level 3 (25 minutes).

ANALISIS UNJUK KERJA MESIN DIESEL DENGAN BAHAN BAKAR CAMPURAN PERTADEX DAN BIODIESEL DARI BIJI KEMIRI Moh. Wafir; Digdo Listyadi; Rahma Rei Sakura
ROTOR Vol 12 No 2 (2019)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

The decline in fuel oil production has led to the development of alternative fuels that are renewable and more environmentally friendly. An alternative fuel that can be developed is biodiesel. In this study aims to develop alternative biodiesel fuels as a substitute for fossil oil fuels that are feasible applied to diesel engines. This study conducted a diesel engine performance test using mixed fuel from pertadex and biodiesel Aleurites Moluccana with a variation of biodiesel mixture B10, B20, and B30. From the test results using a mixture of biodiesel, the ef ective power and torque produced by the engine decreases compared to using pure pertadex. Among the three variations of the biodiesel mixture, the best ef ective power produced by B10 fuel is 277 Watt and the best torque produced by B10 fuel is 1,238 Nm. Specific fuel consumption in all biodiesel blends is increased compared to pure pertadex. Among the three variations of the biodiesel mixture, the best specific fuel consumption produced by B30 fuel is 1197,67 g/kWh. The thermal ef iciency in all biodiesel blends is increased compared to pure pertadex in B20 and B30 blends. Among the three variations of the biodiesel mixture, the best thermal ef iciency produced by B20 fuel is 7,883 %. The opacity of the engine exhaust gas produced in all biodiesel mixes is getting better compared to using pure pertadex. The best opacity of the engine exhaust gas produced in the use of B30 fuel is 2,3% HSU. Keywords: Biodiesel, Aleurites Moluccana, Diesel Engine Performance, Opacity

ANALISIS SIFAT MEKANIK KOMPOSIT LAMINA BERPENGUAT SERAT KACA WOVEN DENGAN MATRIKS UNSATURATED POLYESTER 2504 APT Naafi' ul Amri; Gaguk Jatisukamto; Sumarji Sumarji
ROTOR Vol 12 No 1 (2019)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Polymer composites has anisotropic properties, if it receives stress from outside it will increase deformation in all directions. This study aims to determine the effect of composites lamina made from woven glass fibers on 2504 APT unsaturated polyester on tensile and flexural strength. The research methodology used is as follows: the process of making composites using the Hand-Lay Up method, the matrix volume fraction Vfm = 69, 39%, the fiber volume fraction Vfs = 30, 38%. The research parameters observed are the x-direction stress (sx) and the y-axis direction strees, (sy). The results obtained are the y-axis, (sy) = 0.8% greater than the x-axis. The flexural strength of the x-axis direction, (sbx) = 57,7% greater than the y-axis direction. The difference in the value of the tensile strength occurs in the number of different fiber bonds, while the flexural strength of the y direction occurs in the fiber lamina which increases more.

PENGARUH VARIASI PARAMETER KECEPATAN TORCH, TEKANAN OKSIGEN DAN JARAK NOZZLE TERHADAP MATERIAL REMOVAL RATE PADA PROSES OTOMASI GAS CUTTING Robi Subastian; Hari Arbiantara
ROTOR Vol 12 No 2 (2019)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

The number of industries that make building, bridge and machine construction are inseparable from the metal cutting process, to produce optimal output, the process is done automatically. Gas Cutting is a metal cutting technique that uses a combination of oxygen gas and fuel. The purpose of this study was to determine the most optimal combination of low carbon cutting fabrication processes with variations in the Torch Speed parameter (mm / min), Oxygen Pressure (Kg / cm2), Nozzle Distance (mm) to produce the greatest MRR using the taguchi method. From the research, the most optimal combination of parameters on MRR is level 3 torch speed of 475 mm / minute, oxygen pressure at level 3 of 7.5 kg / cm2 and nozzle distance at level 2 of 6 mm. with the contribution of torch speed contribution of 87.39%, oxygen pressure of 10.35%, the effect of the nozzle distance parameter of 1.17%.

PENGARUH VARIASI JENIS PENDINGIN DAN KEDALAMAN POTONG PADA PROSES BUBUT BAJA ST60 TERHADAP UMUR PAHAT Ahmad Khoirul Anwar; Digdo Listyadi; Dwi Djumhariyanto
ROTOR Vol 12 No 1 (2019)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Turning machining process is a warkpiece diameter reduction by using chisel cut to produce the shape of the workpiece on a turning, there are various types of machining turning chisel pieces on the turning chisel types include carbide, CBN, and insert. There are also other types on conventional chisel on a turning process, one of which is a turning type of high speed steel (HSS), the turning is widely used in coventional production processes for other than low cost is also easy to grinding. Parameter in this research is coolant and depth of cut. The coolant used is dromus, ex-oil, ex cooking oil. The depth of cut used is 0,3mm, 0,5mm amd 0,8mm. The highest of tool life in this reserch with dromus as coolant at 0,3mm depth of cut is 83,17 minutes. With ex-oil at 0,3 depth of cut the tool life is 70,79 minutes. And with ex-cooking oil the tool life is 56,77 minutes with 0,3mm depth of cut. While the lowest tool life be obtained with ex-cooking oil coolant at 0,8mm depth of cut is 38,90 minutes. So, the canclusion dromus is a batter then ex-oil and ex-cooking oil. This is caused when the dromus as coolant can mixed with water and become one so can get down temperture of chisel.

PENGARUH TEMPERATUR DAN WAKTU PEMANASAN PADA PROSES PIROLISIS PET/PP TERHADAP KARAKTERISTIK BAHAN BAKAR Yusca Alvantio Permana; Santoso Mulyadi; Hari Sutjahjono; Ahmad Adib Rosyadi
ROTOR Vol 12 No 2 (2019)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Masalahan penumpukan sampah merupakan hal yang krusial, Bahkan sampah dapat dikatakan sebagai masalah kultural karena dampaknya terkena pada berbagai sisi kehidupan, terutama seperti kota-kota besar. Metode pengolahan sampah plastik yang telah banyak dikembangkan saat ini adalah dengan metode pirolisis, dimana penelitian ini bertujuan untuk menguranggi penumpukan sampah plastik dengan mengubah nya menjadi bahan bakar dengan cara memanaskan sampah plastik di dalam ruangan yang terbatas oksigen atau reaktor, kemudian uap dari hasil pemanasan dari reaktor akan mengalir melalui pipa pendingin kemudian uap yang telah melalui pipa pendingin tersebut dapat menjadi minyak bahan bakar yang memiliki karakteristik di bawah bahan bakar jenis premium.

RANCANG BANGUN ALAT PENGASAPAN IKAN DENGAN SIRKULASI ASAP TERSEBAR MERATA Aris Fiatno; Yanti Yantri Kusuma
ROTOR Vol 13 No 2 (2020)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

The processing of smoked fish that is carried out by the XIII Koto Kampar community is still relatively simple, the weaknesses caused by traditional fish smoked include the appearance of being less attractive (partially charred) difficult temperature control and polluting the air. In this research, a fish smoking system was designed using and oven model with a separate combustion chamber, the smoke is flowed through a pipe equipped with a filter and piping design to circulate the smoke evenly to the smoke cabinet. Retrieval of test data in the form of; Efficiency of smoking time by measuring temperature on each shelf and air humidity (RH) in the fumigation chamber, taking proximate content test data to determine moisture, ash, protein and fat content. Temperature testing for 480 minutes while maintaining the temperature between 30-40 ◦C. Humidity at 55% during the curing process and moisture content from 65-48%.

PENGARUH MERK DAN RASIO CAMPURAN ANTI GORES TERHADAP KUALITAS HASIL PELAPISAN MATERIAL LOGAM ikhwanul Qiram; Fawaizul Umam; Adi Pratama
ROTOR Vol 14 No 1 (2021)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Paint is a liquid used to coat the surface of an object with the aim of decorative, reinforcing or protective of the material. Anti-scratch or varnish is a paint made from a hydrocarbon polymer without a color pigment. This study aims to determine the effect of the brand and the ratio of the anti-scratch mixture on the quality of the metal coating. The workpiece used is a 0.5 mm galvanized plate with a size of 10 cm x 10 cm. In this study, three variations of the ratio of anti-scratch and thinner mixtures will be carried out, namely 1: 1, 1: 1.25 and 1: 1.5 using the brands MTT, BLKT, WS. Spraying variations include spraying 1 sec (2x spraying), 2 secs (4x spraying), 3 sec (6x spraying). From the data collection process, two measurements will be taken, the first, the gloss test using a lux meter and a color density test. The gloss test was carried out by irradiating using three tilt angles, namely 50 °, 55 ° and 60 °. To test the color density using the Coolphptools Software. The highest gloss results occurred on the WS brand with a mixture ratio of 1: 1 resulting in a value of 9770 (lux) at an angle of 60 ° with a spray time of 2 seconds (4 times spray). The lowest yield occurred for the MTT brand producing a value of 4170 at an angle of 50 ° with a spray time of 3 seconds (6 times the spray). The results of this study generally show that the brand and the ratio of the anti-scratch mixture have an effect on the coating of metal materials

PERBANDINGAN EMISI GAS BUANG MENGGUNAKAN BAHAN BAKAR PERTALITE DENGAN BAHAN BAKAR GAS ELPIJI PADA MESIN TRIARROWS TR200 Budiyono Budiyono; Imam Prasetyo
ROTOR Vol 13 No 1 (2020)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Indonesia is one of the countries with the third highest level of air pollution in the world. The contribution of motor vehicle exhaust emissions as the largest source of air pollution reaches 60-70%, compared to industry which only ranges between 10-15%. The purpose of this research is to find out the Comparison of Flue Gas Emissions Using Pertalite Fuel with LPG Fuels on the Tr200 Triarrows Engine , The testing place at the Mechanical Engineering Lab of the University of Muhammadiyah Pekajangan Pekalongan, the research method using descriptive data analysis methods and as a dependent variable CO and HC flue gas and independent variables are 2500 rpm, 3000 rpm, 3500, 4000 rpm, 4500 rpm and 5000 rpm. Tests were conducted to determine the value of exhaust emissions on pertalite fuel and LPG gas fuel on the Triarrows Tr200 Generator. From the results of the study it was found that some significant decreases in the value of CO gas emission occurred at 3500 rpm - 5000 rpm which is the concentration decreased by 7.97% from 8.07% to 0.1% at 3500 rpm. While the concentration of HC gas emissions which is very significant at 2500 rpm - 5000 rpm which is the value of concentration decreased by 3945 ppm from 4412 ppm to 467 ppm at 3000 rpm. Keywords: Generator, Pertalite, Flue Gas Emissions, CO, HC

ANALISA PERFORMA DAN KONSUMSI BAHAN BAKAR PADA MESIN 4-TAK 113CC MENGGUNAKAN BAHAN BAKAR CAMPURAN PREMIUM DAN ETHANOL Muhamad Hafidz Firdaus Priatama; Imron Rosyadi; Yusvardi Yusuf
ROTOR Vol 13 No 2 (2020)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

The use of a fuel mixture of gasoline and ethanol can reduce the PM2.5 (Particulate Matter) value in the air by 0.3-0.4 µg m-3. This research aims to see the performance of a 4-stroke engine 113cc in standard conditions using a mixture of premium and ethanol. This research learns 5 types of mixture, E0, E10, E15, E20, and E25. The fuels was tested at 5 engine speed 4000, 4500, 5000, 5500, and 6000 rpm, at prony brake dynamometer to measuring performance, fuel consumption and Specific Fuel Consumption (SFC). The results of research show that the highest torque and power is the E15 mixture, that is 8.90 Nm at 5500 rpm and the power obtained is 5.529 kW at 6000 rpm. Meanwhile, the lowest fuel consumption value is found in the E10 with a value of 169.78 gr/hour at 4500 rpm. The lowest SFC value of all fuels is the E15 at 5000 rpm on 27.565 gr/kW.h. This is the lowest of any other fuel, because the Research Octane Number value is following the compression ratio of the engine, so there is no delay in ignition symptoms that occur during the combustion system. The viscosity value also contributes to the difference in data.

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Nasrul Ilminnafik

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Jawa timur

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