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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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PERANCANGAN MESIN PEMERAS LENDIR BIJI KAKAO (DEPULPER) TIPE ROTARY UNTUK MENINGKATKAN MUTU BIJI BUAH KAKAO DESA SUMBERAGUNG KABUPATEN BANYUWANGI Nuraini Lusi; Afandi Akhmad; Catrawedarma IGNB; Anam Chairul
ROTOR Vol 10 No 2 (2017)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

The purpose of this activity is to improve the productivity of the farmers in the success of cocoa fruit through the use of appropriate technology for the separation of coco seeds / squeezer machine, with the application of this technology is expected to assist farmers in the production process so that the quality results of cocoa produced will be more optimal. Cocoa bean separator machine serves to accelerate the process of separation of salut which during this process is still manually and takes a long time. This salute separator machine as much as possible the process is easy and the results are really on target. The main objective of making cocoa depulper is to assist cocoa farmers in the process of harvesting and improving the quality of crops so that the needs of cocoa farmers can be fulfilled. Keywords: cocoa, salute, depulper, rotary system

PENGARUH KETINGGIAN TERBANG TERHADAP ENDURANCE MAKSIMUM TERBANG JELAJAH PESAWAT N219 MENGGUNAKAN METODE Pr-V Akhmad Nirman Zaki; Hary Sutjahjono; FX. Kristianta
ROTOR 2017: ROTOR Special Edition
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

As a plane that is still in flight testing period then the N219 aircraft needs to be assessed for evaluation purposes. Focus in this study is on field of performance. This field is studied to determine the performance of N219 aircraft especially in the cruise phase. This study was conducted with the aim to determine the effect of variations in the selection of flying alititudes on the achievement of maximum endurance flying. The calculation method is done by using Pr-V graph. This method is used to determine the maximum endurance through the minimum power required curve. The result show that the increase in flying height cause the decrease of air density. This happens because the pressure and temperature of the air also decreases with increasing height. In addition, the increase in flying altitude also affects the fuel flow. Fuel flow decrease with increasing altitude. Conversely, the maximum endurance increases with the increase in altitude. This happens because the endurance is derived from the division of the fuel flow weight, so the endurance is inversely proportional to the fuel flow. The lowest maximum endurance value occurs at sea level is 6,48 jam, and the highest maximum endurance value occurs at 10.000 ft is 8,65 jam. Keywords: Endurance, cruise, altitude

ANALISA PERFORMA TURBIN ANGIN SUMBU HORISONTAL BERSUDU AIRFOIL MELALUI VARIASI JUMLAH SUDU Wabang A Jhon; Abanat D.J Jufra; Hattu Edwin
ROTOR Vol 11 No 2 (2018)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Indonesia is an area that has the potential for sufficient wind resources to be utilized for kinetic energy into other energy such as mechanical energy and electrical energy through its generators (generators). The way to utilize wind kinetic energy into other energy is through a device called a wind turbine. Wind turbines have been around since ancient times, and are called airfoil angled wind turbines. This airfoil wind turbine is designed only for areas with average wind speeds above 6m / s. While in Indonesia not all regions have the same wind speed. In certain seasons, the average wind speed is below 6 m / s. This has become a major problem in regions that have average wind speeds below 6 m / s. Seeing this condition, there is a need for scientific research to obtain wind turbines that can be used in areas with average wind speeds below 5m / s. For this reason, the research I want to do is get a wind turbine that can be used as a power plant in areas that have wind speeds below 6m / s. This research was conducted on the basis of scientific theory in fluid mechanics regarding the sweeping area of wind turbines and the performance of variations in the number of blades in the wind. In addition, the research in several scientific journals was used as the basis of this research This research method is an experimental method, in the form of testing a wind turbine axis prototype horizontal and airfoil axis. The details of the research activity are the design and manufacture of laboratory scale horizontal airfoil axis turbines. Next, testing with a fan as a source of wind. The fan used has three variations of speed, all of which are used to determine the lowest average wind speed that can be applied. The results of the research are where wind turbines with the greatest torque and power and the Coefficient of Performance (CP) with the highest value will be used as a result to be applied to the community. Based on experimental data, it can be concluded that the greatest torque and power occur in turbines with 4 blades with details at speed 1, the largest torque and power are 0.201 Nm and 4.5 W; at speed 2, the biggest torque and power are 0.25 Nm and 7.21 W; at speed 3, the biggest torque and power are 0.28 Nm and 8.35 W Keywords: wind turbine, airfoil, nozzle, diffuser

KAJIAN SEAKEEPING KAPAL FERRY RO-RO 750 GT BERBASIS PENGUJIAN HIDRODINAMIKA Ahmad, Mujahid Syaiful
ROTOR Vol 11 No 2 (2018)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

The Ferry Ro-Ro is a ship that functions to crossing inter island and to transport vehicles, passengers and goods. Building a ship requires a very large investment value so that the design of the ship is a very important consideration by conduct the intens study to determine the performance of a ship, one of them is the performance of the ship motion, endurance, and reliability while sailing which can be seen by conducting a hydrodynamic test in the form of a seakeeping test on the Ferry Ro-Ro Ship Model. This study conduct the seakeeping testing due to Ferry Ro-Ro 750 GT Ship Model which aims to predict the pattern of ship behavior by using the seakeeping test methods at Manoeuvering and Ocean Basin at Laboratorium Hidrodinamika Indonesia at Balai Teknologi Hirdoinamika - BPPT with th parameter Wave Height Hs = 2.50 m, Wave Period Tp = 9.00 s by heading 180 deg and 135 deg, and model scale is 1 : 21.19. The seakeeping test procedure for the Ferry Ro-Ro 750 GT Ship Model is based on ITTC No 7.5-02-07-02 standards. Testing of the ship model is conducted by using the method of free running where ship moving at a speed of 12 knots (actual scale). Analysis of measurement results is displayed in the form of Response Amplitude Operator (RAO) and statical analysis. The hydrodynamic test results in the form of a seakeeping test of Ferry Ro-Ro 750 GT Ship Model shows the value of Root Mean Square (RMS) of each direction of the ship relative to the direction of arrival of the wave (heading) 180 deg with roll value = 0.825 deg and pitch value = 2.231 deg. And heading 135 deg with roll value = 2.410 deg and pitch value = 1.797 deg, where NORDFORSK 1987 criteria standard for RMS roll value is 6 deg, and RMS pitch value is 1.5 deg. Keywords: Seakeeping, Ferry Ro-Ro, Hydrodynamics

PRESTASI MOTOR DIESEL DENGAN OPTIMALISASI SISTEM INTAKE MANIFOLD PAK SYS (PERFORMANCE AIR INTAKE SYSTEM) TURBO FAN AXIAL Ahmad Robiul Awal Udin; Adityo Adityo
ROTOR Vol 10 No 2 (2017)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

The development of motor vehicle technology has urgency of increasing the efficiency for the engine of fuel requirements that will be used in the combustion process to produce output parameters. One of the elements for an effective combustion process for the fuel mixture composition is the quantity and the air capacity to be supplied for each cylinder. The construction of intake manifold is one of minor losses for requirement capacity of air when intake suction take occured. The addition of Axial Fan in the intake manifold system of diesel motors is expected to meet the air supply capacity and minimize minor losses, so the performance engine like : volumetric efficiency, torque and power increased. Fundamental of air Intake System Performance Method to inducting (forces) amount of the air through Fan Axial Double Blade blades. This study uses a quasi-experimental method that compares the intake manifold with or without the installation of axial (standard) fan to the torque and power generated from four diesel motors (4) steps. From the test obtained an average torque increase of 22%, with the highest torque at the beginning of 1150 rpm engine speed of 41.8 Nm, while the average power increase of 13% with a power rating of 8 KW at 2200 rpm engine speed. While the volumetric efficiency experienced an average increase of 6% with a significant percentage of engine speed of 2200 rpm which reached 98.8%. Keywords: Torque, Power, Diesel, Intake Manifold, Axial Fan

PENGARUH UKURAN PARTIKEL LIMBAH KOPI TERHADAP KARAKTERISASI SIFAT MEKANIK PADA PANEL KOMPOSIT Haidzar Nurdiansyah; Sumarji Sumarji; Ahmad Syuhri; Dedi Dwi Laksana; Muhammad Abduh
ROTOR 2017: ROTOR Special Edition
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Panel composite materials using filler coffee waste particles with various particle sizes have been analyzed for effect. The matrix used is 2504APT eterset polyester resin, and the method used in making composites is the vacuum method. Particle size variations used are using mesh sizes 30, 40, 50, 60, and 70. Mechanical strengths such as tensile strength and bending strength are compared and evaluated. Interface analysis was also carried out by using a micro-test to determine the microstructure of the test specimens. The tensile strength obtained by the most significant value on the 50 mesh is 24.89 MPa, while the highest bending strength value is in the 60 mesh of 50.9 MPa. The addition of coffee waste particles with various sizes influences the mechanical properties of the coffee waste composite panel. Keywords: panel composites, coffee waste particles, particle size, mechanical properties, microstructure

ANALISIS PENAMBAHAN SERAT JERAMI TERHADAP KARAKTERISTIK KUAT TARIK KOMPOSIT FRP (FIBER REINFORCEMENT PLASTIC) Nuraini L usi; Anggra Fiveriati; Siska Aprilia H; Arif Pungga Irawan
ROTOR 2017: ROTOR Special Edition
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

This aims of this research is to determine the mechanical characteristics of composite materials from one of organic fibers that have environmentally friendly properties and widely available in the territory of Indonesia. The organic fiber studied in this research was rice straw, the characteristics to be studied were tensile strength by tensile testing and adjusted to ASTM standard (American Standards of Test Materials). The composite / composite paneling is made by hand lay up and with manual emphasis using glass as a mold and press. Composition of the test material (composite) ie the volume of rice straw by 35%, 64.5% resin volume and 0.5% catalyst volume. The variables of this study are the length of fiber 15 mm, 20 mm and 25 mmm, the direction of fiber angle 00 ,450 and 900 . Another variable is the length of soaking fiber with alkali. Based on the mechanical characteristics of organic fibers, it is obtained that the rice straw fiber which has the best tensile strength characteristic is by the immersion treatment among other variations. Keywords: composite, rice straw, FRP

APLIKASI ALAT VACUM PROCESS PADA PENYADAPAN POHON KELAPA TERHADAP VOLUME NIRA YANG DIHASILKAN SEBAGAI UPAYA PENINGKATAN PRODUKTIVITAS PETANI GULA MERAH KABUPATEN BANYUWANGI Anam Chairul; Kurniasanti Alief Sandryas; Muzaka Khairul
ROTOR Vol 11 No 2 (2018)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Banyuwangi has the advantage of being a coastal area including abundant coconut trees. The problem in the tapping process of this sap, especially coconut trees, is the clogging of the tapping area on the flower stem that occurs naturally. So far what has been done is by cleaning the blockage through thin cuts on the tapped part. This is a tiring routine that must be carried out every morning and evening, plus the tapping roomie is brought manually then the shelter is taken up to be reassembled on tapped flower bunches. Therefore it is necessary to have the best solution to the problem. The method of this research is a vacuum system that is applied to the tapping process of the sapper with the aim of finding a comparison of the effect of manual and vacuum methods on the volume of sap produced on coconut trees and the results of fluid obtained compared. The results showed that the tapping process of coconut sap namely the manual method achieved an average yield of 24.12 liters in the morning and 23.15 liters in the afternoon and by using vacuum averaged 24.33 liters in the morning and 23.70 liters in the afternoon. Keywords: Tapping of coconut trees, vacuum system, the volume of sap

PENGGUNAAN HYDRO-CRACK SYSTEM SEBAGAI UPAYA MENINGKATKAN KINERJA MESIN Winoko Agus Yuniarto; Hertomo Bambang; Nurhadi Nurhadi
ROTOR Vol 11 No 2 (2018)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

The use of hydro-crack systems in combustion motors in addition to functioning to improve exhaust emissions and improve engine performance through the combustion process. Perfect combustion can be adjusted during the combustion process. The purpose of the study was to determine the select magnitude of power increase, decrease fuel consumption and increase the average effective pressure and rotation of the use of 92 octane fuel without HCS. The method of testing engine performance in obtaining data is constant speed (v boarding) based on ISO 1585. Subsequent data signifies presented in a graphical form which is then calculated by statistics. Power increased 2.83hP and bmep 43.19kPa at 4000rpm, sfc dropped 0.0358kg / hP. Hours at 1000rpm and rose by 43.19kPa, when using 92 octane fuel against the standard. When using octane 95 with HCS the power rises 7.95hP at 4000rpm, buys 28.42 kPa when 4500 and sfc drop 0.0537kg / hp. Hours at 1000rpm Keywords: power, fuel consumption, effective average pressure, octane value, hydro-crack system

PENAMBAHAN SERAT TANDAN KOSONG KELAPA SAWIT (TKKS) DALAM RANGKA MEREDUKSI BERAT KOMPOSIT PAPAN SEMEN tarkono - tarkono; Hadi - Ali
ROTOR Vol 10 No 2 (2017)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Inventories of oil palm empty fruit bunches palm (EFBP) at oil palm factories are very abundant. This will be a problem if the handling is not serious. Utilization of EFBP fiber as a technical material is one effort that can be done in order to help reduce the problem of EFBP waste in palm oil mill. EFBP fibers as the substance of fibrous cement board aims to reduce to the weight of the material without lowering its strength. The method of making fibrous cement board by mixing EFBP fiber into dough with 12% marble powder ratio, 10% CaCO3 powder and EFBP fiber volume and portland cement are varied. The addition of EFBP fibers as much as 16% of the total volume can decrease the weight by 15.2%. The results showed that the cement board based on EFBP fibers under optimum conditions has a tensile strength of 1.58 Mpa, density (ρ) of 1519 k g / cm3 and bending strength of 2.61 MPa. Thus, the addition of EFBP fiber to the production of cement board has the potential to be mass produced Keywords : cement board , fibre, EFBP

Page 13 of 34 | Total Record : 333

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Contact Name Nasrul Ilminnafik

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Editorial Address Jl Kalimantan 37

Location Kab. jember, Jawa timur INDONESIA

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Contact Name
Nasrul Ilminnafik

Contact Email
jurnal.rotor@unej.ac.id

Phone
+628123290147

Journal Mail Official
jurnal.rotor@unej.ac.id

Editorial Address
Jl Kalimantan 37

Location
Kab. jember,

Jawa timur

INDONESIA