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ROTOR: JURNAL ILMIAH TEKNIK MESIN
Published by Universitas Jember
ISSN : 1979018x     EISSN : 24600385     DOI : -
Core Subject : Science, Engineering,
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 8 Documents
 1 
Search results for , issue "Vol 8 No 2 (2015)" : 8 Documents clear
Pengaruh Tekanan Udara (Inflation Pressure) pada Ban Tipe Radial Ply terhadap Rolling Resistance Muttaqin Mar'iy Muslih; F.X. Kristianta; Hari Arbiantara
ROTOR Vol 8 No 2 (2015)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

Salah satu faktor yang berperan penting pada efisiensi bahan bakar pada kendaraan adalah rolling resistance. Rolling Resistance adalah tahanan terhadap roda yang akan dan telah menggelinding akibat adanya gaya gesekan antara roda dengan permukaan jalannya roda. Ban radial umumnya mempunyai aspek ratio yaitu perbandingan tinggi dan lebar lebih kecil dari ban bias.Ban radial adalah ban yang paling banyak dipakai pada kendaraan penumpang untuk saat ini. Pada penelitian ini akan melakukan analisa tentang pengaruh tekanan udara pada ban tipe radial ply terhadap rolling resistance. Pada penelitian ini digunakan alat standar pengukuran rolling resistance yang ditetapkan oleh International Organization for Standardization (ISO), yaitu ISO 18164: 2005. Tujuan penelitian ini mengetahui pengaruh tekanan udara (inflation preassure) terhadap rolling resistance pada ban tipe radial ply pada kecepatan 36,7 km/jam. Penelitian ini tekanan udara yang diberikan bervariasi mulai dari 100 kPa, 150 kPa, 200 kPa, 250 kPa, dan 300 kPa dengan pembebanan radial 1kN. Nilai rolling resistance diukur menggunakan alat uji rolling resistance dan untuk mengetahui kecepatan putar menggunakan tachometer. Nilai rata – rata rolling resistance dan lebar tapak terkecil terdapat pada tekanan udara 300 kPa dengan nilai 9,36 N dan 39 mm. Nilai rata – rata rolling resistance dan lebar tapak terbesar terdapat pada tekanan 100 kPa dengan nilai 19,97 N dan 51,5 mm. Tekanan udara (inflation preassure) dapat meningkatkan dan menurunkan nilai rolling resistance, dikarenakan luasan kontak ban terhadap permukaan jalan yang berubah seiring dengan perubahan tekanan udara (inflation preassure) yang diberikan . Keywords: Tekanan udara, rolling resistance, ban radial ply
Karakteristik Termal Briket Kayu Sengon Dengan Variasi Suhu Tekan Nasrul Ilminnafik; M. Agung Fauzi
ROTOR Vol 8 No 2 (2015)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

Briquette is a solid fuel that made from organic waste and mixed with other materials by pressure. In this research, the raw material used is waste of sengon sawdust and used  tapioca flour as binder. This study focused on the effect of temperature pressure variations on ignition time, burning time and the rate of combustions of briquette charcoal sengon. Pyrolisis temperature 400 ºC and variation of temperature pressure were 150ºC, 175ºC, and 200ºC. The results of research onsuppression temperature of 200 ºC, the ignition time is getting longer, because the more water out of charcoal and tapioca, it makes active adhesive particles to bind the charcoal leading to higher density briquettes. On suppression temperature of 200 ºC, the burning time is getting longer, because more and more moisture out of charcoal and tapioca, so that more particles tapioca that binds the active charcoal. On pressure of 200 ºC, the slower the rate of combustion because the evaporation of the water content of charcoal and tapioca so that the higher the water content out of the adhesive will more actively bind charcoal and increase density of briquettes. Keywords: briquettes sengon, thermal characteristics, ignition time, burning time, rate of combustion.
Karakteristik Pembakaran Difusi Campuran Biodiesel Minyak Jarak Pagar – Etanol / Metanol Pada Mini Glass Tube Dan Mini Copper Tube M. Arsad Al Banjari; Lilis Yuliati; Achmad As'ad Sonief
ROTOR Vol 8 No 2 (2015)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

Diffusion is performed combustion in diesel engines, biodiesel as a biofuel that is used to replace fossil fuels. Many studies have looked at the effects of a mixture of biodiesel fuel ethanol-methanol-diesel with different percentages in terms of engine performance and exhaust emissions, but have never done research on combustion characteristics. This paper discusses how the mix ratio diffusion combustion characteristics of biodiesel - ethanol / methanol on a mini glass tube burner and a mini copper tube burner. the results showed that the use of mini glass tube burner produces more explosions flame than mini copper tube burner. This is because the temperature of the mini copper tube is higher than the temperature of the mini glass tube, and fire explosion occurred because of thecohesionof theglasstubeto thefuel, so that theliquid fueloftenjumpoutofthe burner tipand thenthere was an explosionof fire, and alsocoolingthe fuelvaporwhen passing theminiglasstube. The lower of viscosity and boiling point properties can reduce explosion flame, and making the evaporationfuelmore better. Conclusion, the use ofmini copper tube burner, producesmore stable flamethanmini glass tube burner. and properties of biodiesel-methanol is better than biodiesel-ethanol. Keywords :Biodiesel, diffusion flame, combustion characteristics, mini glass tube burner, mini copper tube burner.
PENGARUH VARIASI TEMPERATUR TERHADAP MASSA DAN ENERGI YANG DIHASILKAN PIROLISIS SERBUK KAYU MAHONI (SWITENIA MACROPHYLLA) PADA ROTARY KILN Ikhwanul Qiram; Denny Widhiyanuriyawan; widya wijayanti
ROTOR Vol 8 No 2 (2015)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

Pirolysis is thermochemical decomposition process of biomass into useful product. A method that can be used is a rotary kiln pirolyzer which consist a heating cylinder that rotate with a certain rotation speed. This research is aimed to get the effet of temperature due to char product quantity of switenia macrophylla rotary kiln pirolysis.The research is done by pirolysis experiment with 200 gram of switenia macrophylla in dust form. Temperature heating is varied 250 C, 350 C, 450 C, 500 C, dan 600 C. The heating temperature is provide by eletric heater with control system. Temperatur is measured with K type thermocouple. The heating process is taken for 180 minutes using stopwatch. The measurement is done for biomass and char volume using measuring cup. Mass is measured using scale. Low heating value is measured using bomb calorimeter.The result show that temperatur has effect due to char product of switenia macrophylla rotary kiln pirolysis. Char mass loss tend to increase due to temperature increasing. Low heating value and char porosity tend to increase due to mass loss percentage increasing. Shrinking factor and percentage of yield energy tend to decrease due to mass loss percentage increasing. Keywords: pirolysis, rotary kiln, char, temperature
Fabrikasi Prototype Touchscreen Dengan Lapisan Nano Film Seng Oksida Menggunakan Metode Spin Coating Muhammad Mukri; F.X. Kristianta; Hari Sutjahjono
ROTOR Vol 8 No 2 (2015)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

Touchscreen is a computer input device that works with a touch on the display screen using a finger or a digital pen. Materials used for the manufacture of thin layers for prototype touchscreen that ZnO and SnO. In this study, focused on morphology and transparency in the prototype touchscreen.Variations used is spin coating, namely 1000, 2000, 3000 and 5000 rpm. Making the spin coating performed at Energy Conversion Laboratory Department of Mechanical Engineering, Faculty of Engineering, University of Jember while for morphological examination conducted in the laboratory of Pharmaceutical Pharmacy, University of Jember and for transparency testing conducted at the Laboratory of Bio Science Faculty of Dentistry, University of Jember. The purpose of this research is to know the effect of the spin coating of the morphology of thin layers and determine the influence of spin coating a thin layer to transparency. The result is the morphology of the prototype touchscreen is the best there is in the round of 5000 rpm while transparency is best gained at 5000 rpm rotation with a wavelength of 450 nm with the result of 79.9% and the worst round of 1000 rpm with a wavelength of 450 nm with results of 19.8%, the higher the spin coating rotation on the morphological and transparency, the better. Keywords: ZnO, SnO, Morphological, dan Transparency
Pengaruh Variasi Fraksi Volume Filler Terhadap Kekuatan Mekanik Komposit Sandwich Polyester Serat Kenaf Core Styrofoam Aman Sentosa; Sumarji Sumarji; Dwi Djumhariyanto
ROTOR Vol 8 No 2 (2015)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

Composite sandwich reinforcement  kenaf fiber polyester with Styrofoam core is an alternative material that has the potential to be developed as an application in various fields with an excess of nature that is strong, lightweight, rigid, able to withstand bending loads, impact, vibration damping and sound. This study is intended to overcome the problems of fishermen Muncar - Banyuwangi in the selection of materials manufacture of safe fish robust and insulated to preserve or maintain the freshness of the fish catch of fishermen low temperature. This study was conducted to determine the effect of variations in fiber volume fraction of the increase in impact strength and bending composite materials sandwich.Untuk get impact strength values ​​using the tool impact test with a maximum capacity of 300 joules specifications, pendulum mass of 20.9 kg, 0.83 m long pendulum arm, while to obtain bending strength values ​​using a universal testing machine capacity of 300 KN. Variations were used in this study is the percentage of fiber volume fraction of 10% fiber, 20%, 30%, and 40%. The results showed that the variation of fiber volume fraction of 40% had values ​​higher impact strength and bending of 0.30 Joules / mm² and 5,65MPa than the fiber volume fraction of 10% has impact and bending strength values ​​were lower at 0.14 joules / mm2 and 0.30 MPa. So in this study limits the variation of fiber volume fraction of 10% to 40% proved that if the greater the percentage of fiber volume fraction value will increase the value of impact strength and bending in composite sandwich. Keywords: fiber volume fraction, impact strength and bending, composite sandwich
PENGARUH SUHU DAN WAKTU TERHADAP KEKUATAN TARIK DENGAN PENGUJIAN TERMAL MEKANIS PADA BELT CONVEYOR 2 PLY Muslih Muhammad; Hari Arbiantara; Ahmad Adib Rosyadi
ROTOR Vol 8 No 2 (2015)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

Belt is a major component that directly contact with the material and also it is a component that can be worn out in a conveyor system. Along with its production capacity and lack of conveyor belt proper maintenance, a conveyor belt will experience a variety of obstacles or problems. The problem that often occurs is the torning belt. To overcome the problems, belt splicing is necessary to do. Hot splicing method is one method that can help connecting the belt. Hot splicing method utilizing heat, time and pressure to connect the belt. The purpose of this study is to determine the influence of temperature and timing of belt splicing against tensile strength with thermal mechanical testing. The method used in this study is the experimental method, a method used to test the effect of a treatment on the object under study. Experiments carried out at a temperature variation of grafting ( 130 ºC, 145 ºC and 160 ºC) and the variation of the connection time for 20 minutes , 30 minutes and 40 minutes . The results Showed the highest strength values of 5:14 MPa at a temperature of 130 ºC splicing and connecting time of 40 minutes. Keywords: Belt Conveyor, Splicing Temperature and Splicing Time.
Pengaruh Variasi Desain Crash Box Pola Origami terhadap Kemampuan Penyerapan Energi Imam Kusyairi; Moch. Agus Choiron; Anindito Purnowidodo
ROTOR Vol 8 No 2 (2015)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

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Abstract

This study developed crash box design on origami patterns. These typically have got the dents whichserve as pre-folding. Therefore, the collapses modesarepredictable and stable. The geometry variation of crash box comprises four factors, i.e. basin length (c), distance between the basins (b), thickness (t) and number of segments (M). Meanwhile, the design of optimal variations utilized L9 Taguchi and deformas pattern analysis. The method of this study used software finite and the element of crash box modelling consists of three components, e.g. impactor, crashbox, and fixed support. The material used is AA7003-T7 modellingas thebilinear isotropic hardening. Model loading waconveyed 64 km/h on the impactor. The research shows that the response of quality characteristics of energy absorption is the larger the better. The energy absorption respectively covered 1)thickness (t), 2) segment (M), 3) distance between basins (b), and 4) basin length (c).Whereas, the highest energy absorption of the crash box occupied by the origami pattern no. 3 with c = 9 mm, b = 60 mm, t = 2 mm and M = 6,  reaching 7,247,826 J. In fact, the deformation behavior of the model no. 3 tends to have a symmetrical deformation without buckling. Keywords:Crash box, origami, energy absorbed,deformation

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