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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 11 Documents

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Search results for , issue "Vol 11 No 2 (2018)" : 11 Documents clear

ANALISA PENGARUH PERSENTASE CAMPURAN JARAK PAGAR (JATROPHA CURCAS) DAN KAPOK (CEIBA PETANDRA) BIODIESEL TERHADAP PERUBAHAN SIFAT BAHAN BAKAR Dharma Surya; Sebayang Rihat
ROTOR Vol 11 No 2 (2018)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

To increase the production of biodiesel from non-edible vegetable oils, it is one of the effective ways to solve the limited number of traditional raw materials and the high prices of these raw materials. The primary objective of this study was to optimize the production of biodiesel derived from non-edible raw materials, namely J. curcas and C. Pentandra. The production process is carried out through the esterification and transesterification process of the mixture of J. curcas and C. Pentandra oils. The results of the study indicate a change in biodiesel properties due to the mixing of raw materials. But overall, the mixture of J. curcas and C. Pentandra oils have characteristic features that are suitable and meet the requirements given in the D6751 ASTM and EN 14214 standards. Keywords: alternative fuels; optimization; non-edible oil; biodiesel mixture

PERANCANGAN MULTIPURPOSE WHEELCHAIR Nusantara Fathonisyam Putra Ardhi; Batan Made Londen I
ROTOR Vol 11 No 2 (2018)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

The limitations of the rooms in the hospital may be reasonable, but it will be a problem if this happens at certain times when there is an over the quota of patients such as during an outbreak of Dengue Fever or in the event of a natural disaster. Generally, patients must be willing to sleep on the floor just because of the limitations of the inpatient room and also the bed. To help overcome this problem, especially to help paramedic needs, a multipurpose wheelchair is designed so that in addition to being able to be used as patient transportation, it can also be used as an examination table. The method used to develop the wheelchair starts from an inventory of wheelchair needs, concept development, and selection. The reference used for concept development is a conventional wheelchair while the criteria set for the variety of concepts are the function, operational ease and convenience (wheelchair wear ergonomics). As the central part of the wheelchair, the frame is made of stainless steel pipes. To keep the seating position stable, the swing arm is used as a place to hang the seat on the mainframe. The cross position in the middle of the frame functions to keep the wheelchair symmetrical and can be folded when not in use. Semicircular discs with seven keyholes, each of which is spaced 150, are used as a system for backrest mechanisms to allow them to lie down. The rack and pinion system is used as a mechanism for wheelchair lifting when it is functioned as an examination table. Ergonomics analysis with the help of Catia software using the RULA method, the grand score obtained is 3. So that the design of the wheelchair is quite safe Keywords: Wheelchairs, multipurpose, stable, foldable, rack and pinion and ergonomic

PENGARUH BAYANGAN TERHADAP OUTPUT TEGANGAN DAN KUAT ARUS PADA PEMBANGKIT LISTRIK TENAGA SURYA (PLTS) Hattu P D Edwin; Wabang A Jhon; Tuati Ambros; Palinggi Aris
ROTOR Vol 11 No 2 (2018)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Electrical energy is a very important requirement for the community, along with the development of the era and technological advances that are urgently needed, the need for electrical energy is very large, while the source of electricity that is currently being used still uses energy derived from fossil fuels. As we know that the source of energy derived from fossils is very limited, therefore other energy sources are sought or we are more familiar with renewable energy, one of which is the energy source that comes from the sun, which is better known as solar cell. The electricity from this solar cell is very dependent on sunlight which must illuminate the solar panels so that solar energy can be converted into electrical energy. The output from these solar panels is in the form of voltage and electric current. Some factors that can affect the amount of output or output voltage of electric current in PLTS is, temperature, shadow, (cloud condition, and surrounding environment), and wind speed. Therefore, the purpose of this research is to find out how much the shadow effect on the output voltage and electric current produced by PLTS. It is expected that this research can increase the knowledge of energy derived from the sun in this case the solar cell and know the effect of the shadow on the output voltage and electric current from solar panels.The results showed that there was a shadow effect on voltage reduction and current strength in the PLTS system, namely the 10% shadow area and 12.44 volt DC solar panel current and 2.54 amperage, 100% area covering the voltage output panel and the current of solar panels 12.10 volt DC and 0.22 amperage. The area of the shadow that covers the solar panel affects the output voltage and the strong current of the battery that is the area of the shadow 10% voltage and strong current battery 12.35 volt DC and 18.54 amper, 100% area cover the output panel voltage and strong current battery 11.90 volt DC and 13.85 amperes The shadow area covering the solar panels influences the output voltage and current strength of the inverter, namely the area of the shadow 10% voltage and 226.4 volt AC inverter current and 0.97 amperage, 100% covering the output voltage panel and 220.2 volt AC and 0.66 amperage current. Keywords: Electrical energy, Solar cell, Shadow (cloud condition)

PEMBUATAN GENTENG BERSERAT TANDAN KOSONG KELAPA SAWIT Tarkono Tarkono; Nandang Nandang
ROTOR Vol 11 No 2 (2018)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

The utilization of oil empty bunches palm (EFBP) is limited, while the supply of EFBP is abundant. The most utilization of EFBP is in agriculture, while EFBP fibers have the opportunity to be developed in the field of engineering, for example as a composite material reinforcement material. In the construction field, EFBP fibers can contribute as a mixture of substances for cement tile products. The purpose of adding fiber is to distribute the stress on fibrous cement roof tiles. With evenly distributed stress, the strength of the tile will be higher. The production process of EFBP fibrous cement board is carried out without combustion, with materials in the form of portland cement, marble powder, CaCo3 powder and EFBP fiber and water. Based on the mechanical test that the fibrous EFBP tile can still be applied as a roof, this is evidenced by the majority of its mechanical properties meeting SNI standards. However, fibrous EFBP roof tiles have a flame spread value of 61.5 which means that they still need to be repaired so that the tile is not flammable. Thus, EFBP fibers can be used as an alternative fiber cement tile in order to improve product quality.Keywords: cement tile , fibre, EFBP

PEMILIHAN KAPASITAS BATERAI PENYIMPAN ENERGI LISTRIK DARI ENERGI SURYA Irawan Bambang; Hadi Samsul; Darsin Mahros; Fatkhur Rohman
ROTOR Vol 11 No 2 (2018)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

This paper is concern on the using of some solar batteries for storing the energy from the solar panel. The battery used is a 100 WP solar cell with the appliances. Research was carried out in an open air with real condition without treatment for two months continuously during hot dry season in Malang city, Indonesia. It is concluded that emerged energy from the solar panel was 550 WH or equal to 12 V of 45 AH. During the electric charging from solar panel to the battery, the flowing current vary between 2 A to 6 A. The battery charging only started after 7 am when the voltage was above 12 V. For the solar panel 100 WP to use battery with the storage capacity above 40 AH. Keywords: battery, solar panel, energy

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

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

ANALISIS PENGARUH TEBAL PELAT WELDING REPAIR PADA KEMUDI KAPAL (RUDDER) TERHADAP EFEKTIVITAS MANUVER KAPAL DENGAN Fiveriati Anggra; Darma Yonathan Eka Yeddid; Puspasari Vinda
ROTOR Vol 11 No 2 (2018)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Ship maneuverability is the ability of the ship to rotate and change direction in all conditions of the water when the rudder (steering) turns to form a certain angle; there is a change in pressure, speed and direction of fluid flow, this causes changes in the course of the ship. Corals that produce the rudder of the vessel to crack or break because of the impact of the rock at that time the rudder needs a repair. Repair on the rudder of the ship is usually carried out on the leaves and sticks of steering, one of the repairs processes is by welding, but if the rudder undergoes a reparation process many times, it will cause changes in metallurgical material due to excessive heat treatment. In the process of repairing the rudder, the new plate used to improve the maximum is 1 mm with an old plate, and the rear side of the rudder experiences a higher load because in this part the flow distribution is stacked from the front of the rudder. The results of this study are repaired rudder experiencing an increase of 16% -18% drag and lift force, the faster the ship runs, the higher the drag and lift force so that the resistance is also greater Keywords: Rudder, Maneuver, Repair

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Home Page

OAI Link

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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

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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