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METAL : Jurnal Sistem Mekanik dan Termal

metal
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Published by Universitas Andalas

ISSN : 25981137 EISSN : 25974483 DOI : -

Core Subject : Science, Engineering,

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

METAL: Jurnal Sistem Mekanik dan Termal translated as METAL: Journal of Systems in Mechanical and Thermal is a scholarly peer-reviewed journal published by Mechanical Engineering Department of Engineering Faculty at Universitas Andalas, Padang, Indonesia. The journal focused on the mechanics and thermal aspects of the mechanical engineering area, and accepted articles are in these subjects: Energy - Renewable energy - Green industry - Energy conversion Mechanical System Engineering - Solid body mechanics - Machine construction - Vibration and control - Mechatronics - Tribology Production System Manufacturing engineering - Product design and development - Production technology - Production logistics and transportation Materials Engineering - Material technology - Nanotechnology

Arjuna Subject : Teknik (semua kategori) - Teknik Mesin

Articles 100 Documents

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Analisis Kerusakan Melalui Predictive Maintenance pada Main Drive Raw Mill Indarung II/III Lukman Alrasyid; Jhon Malta
METAL: Jurnal Sistem Mekanik dan Termal Vol 3, No 2 (2019)
Publisher : Department of Mechanical Engineering, Universitas Andalas

A main drive is an important mobilizing motor component in a raw mill. Due to the extremely condition of constant operation of the raw mill results in failure of the main drive. This disturbs the raw mix intake and halts the next processes. In order to observe and diagnose the cause of failure on the main drive, it is important to conduct a maintenance. The Predictive maintenance technique utilized in this research is the vibration analysis technique.The measuring process of the vibration is conducted through the use of transducer velocity in radial and axial directions on the drive and non-drive components of the RIM03 motor and the symetro gear. The vibration, spectrum, velocity, and speed of rotation are analyzed in the x-Viber. Based on the vibration measurement data, the root cause of vibration can be analyzed through spectrum velocity. In this research, the critical result is found at the LS symetro gear. The occurred problem on the LS symetro gear is caused by misalignment shaft on the symetro gear connecting to gear pinion. The solution which can be applied is heat treatment to the shaft, therefore misalignment can be reduced.

Analisa Eksperimental Pengujian Turbin Angin Propeller Tiga Sudu Horizontal Axis Islahuddin - Islahuddin; Sanny Ardhy; Meiki Eru Putra
METAL: Jurnal Sistem Mekanik dan Termal Vol 5, No 2 (2021): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Energy needs in Indonesia are increasing every year along with the increase of human population. On the other hand, the rate of energy demand in Indonesia is not matched by the current energy availability. The lack of energy availability in Indonesia, one of which can be overcome by the use of alternative energy from nature, for example wind energy. Therefore, a three-blade horizontal axis propeller wind turbine was designed to obtain electrical energy. The design of this turbine uses several stages consisting of designing, assembling and testing the turbine. The test was conducted to determine the characteristics and performance of the wind turbine. Based on the initial design, the turbine sweep area is 2.4 m with three blades. The blade type is based on the NACA 2410 airfoil made of fiber composite and epoxy resin which is very effective at low wind speeds. The test was carried out on January 13-15, 2021 at Dharma Andalas University Padang with 16 hours for three days. Data recording is done with an automatic system using an octocoupler sensor, anemometer, and a voltage sensor integrated with a raspberry pi 3 microcontroller. From the tests carried out, the wind turbine starts to rotate at a Vcut-in of 1.5 m/s. The maximum rotation of the rotor obtained is 65 rpm with the highest wind speed of 3.9 m/s. The average power and average efficiency of the wind turbine are 9.8 Watt DC and 25.47%. The total electrical energy generated for 3 x 16 hours is 0.219 kWh.

Pengidentifikasian dan Pencarian Manusia Berbasis Citra Menggunakan Unmanned Aerial Vehicle Zulkifli Amin; Derry Meldi
METAL: Jurnal Sistem Mekanik dan Termal Vol 2, No 2 (2018)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Indonesia often suffers from disasters triggered by natural damage caused by human actions such as floods and landslides. The difficulty of finding victims of natural disasters is the cause of the slow process of evacuation of victims. Because the time required to perform a search is relatively long, it causes a large number of unsaved victims. The availability of camera and UAV equipment and image processing and control technologies can be used to facilitate the search for victims of natural disasters. Image processing is an image processing technique that converts the input image into another better quality image. An image processing device mounted on a UAV that can fly at a certain height can search with missions that have been entered on the software mission planner. This tool is also more accurate because it comes with a GPS that reports the coordinates of the UAV. From the tests conducted with three high variations of 5 meters, 10 meters and 15 meters, obtained an average photo of 28, 51 and 85 photos for each height respectively. This identification system works well. It is known from that detected objects can be captured images. There are differences of number images being captured in each height, this happens because the camera specification is not supporting, as well as the influence of wifi router signal is disconnected at a certain distance. The distance between the UAV and the wifi router will affect the process of detecting objects as well as image capture.

Karakterisasi Material Braket Kawat Gigi Dalam Larutan Saliva Buatan Nurbaiti Nurbaiti; Hendri Van Hoten; Putra Bismantolo
METAL: Jurnal Sistem Mekanik dan Termal Vol 5, No 1 (2021): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

This research is about Characterization of Metal and Ceramic Brace Brackets in Artificial Saliva Solution. The shape of teeth in humans is different, some are neat and some are not. With the times, the problem of untidy teeth can be fixed using braces / braces. Nowadays, the use of braces / braces is not only for straightening teeth but for lifestyle and to support a more attractive and attractive appearance. Braces consist of brackets and curved wires. Braces brackets can be made from a variety of materials, for example: metals, ceramics and composites. This study was directed to determine the biocompatible properties of the bracket in the body by looking at the elemental content after immersion with a solution of saliva (artificial saliva) for approximately 4 weeks. The results of the hardness examination showed an increase between before and after immersion. The chemical composition examination using XRD (X-Ray Diffraction) has not shown any significant changes between the materials before and after immersion. XRD results show that there are no corrosive materials or other hazardous materials on the surface of the braces bracket material.

Perancangan Dan Pengujian Penjejak Cahaya Matahari Untuk Modul Surya Dengan Sistem Microcontroller Arduino Uno ATMega 328 Iskandar Iskandar; David Alif Utama; Lovely Son
METAL: Jurnal Sistem Mekanik dan Termal Vol 2, No 1 (2018)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Device that can convert sunlight into electrical energy is called solar modules. The solar modules are available in the market only for a static condition, while the light intensity always changes based on the incidence angle of the sun. To make the solar modules more optimal, it is always perpendicular to the direction of the sun so it is needed to use solar tracker device. Solar tracker device is commercially sold at relatively high prices. To solve this problem, it will be designed a relatively lower price one. The design is also made to overcome the obstacles of previous studies and fulfill the wishes of prospective consumers. After the design is done, it is obtained solar tracker for solar modules with a control system microcontroller arduino uno ATMega 328. In this research, the testing parameters consist of; the angle of solar modules, solar radiation intensity, the output voltage of the solar modules and battery charging voltage when the load is given. From the research having been done, solar modules with solar tracker have about 0.99% angle deviation of the ideal angle value, can increase about 65.68 W/m2 solar intensity and about 0.22 Volts battery voltage with a fixed load.

Rancang Bangun Sistem Kontrol dan Monitoring Data Turbin Angin Berbasis Website Menggunakan Raspberry Pi 3B+ Meiki Eru Putra; Zulkifli Amin; Islahuddin Islahuddin; Sanny Ardhy
METAL: Jurnal Sistem Mekanik dan Termal Vol 4, No 2 (2020): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Indonesia has considerable wind energy potential. Energy generation system performance can be monitored and controlled through the Internet of Things (IoT) technology. However, research and development of IoT technology in wind turbines in Indonesia is still low. Therefore, in this study, the author seeks to conduct research related to the development of a website-based wind turbine control and data monitoring system. This research uses a 3 blade horizontal axis wind turbine (NACA 2410). The monitoring system uses the Raspberry Pi 3B + microcontroller and several sensor devices such as the IR LM393 speed sensor to measure wind speed and shaft rotation speed, and the INA219 current-voltage sensor to measure the voltage and current of a 350 Watt DC generator. The website was created using the Laravel 5.8 PHP framework and Chart.js. Furthermore, the sensor calibration process and system testing are carried out. Based on the test results, it was found that the monitoring data system was functioning properly. The data has been successfully sent to the server and can be monitored in real-time via the website. Based on the results of the IR LM393 sensor calibration test, the linear regression equation y = 0.7881x + 13.837, and the value of R2 = 0.9934 is obtained. And the value of R2 = 0.9934 indicates that the sensor calibration process is well correlated. The results of testing the control system and monitoring of wind turbine data monitored through the website for 1 x24 show that the highest wind potential occurs at 13.00 to 14.00 WIB, namely at a wind speed of 3.74 m / s.

Karakteristik Dye-Sensitized Solar Cell (DSSC) Berbasis Zat Pewarna Alami dari Ekstrak Jantung Pisang Is Primananda; Rakhmat Dimas Rezvozano
METAL: Jurnal Sistem Mekanik dan Termal Vol 1, No 2 (2017): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

At the present moment, has been a lot of research on renewable energy, such as solar energy utilization is by solar cells. Solar cells at present is dominated by silicon material, but the high cost of production makes more expensive than fossil energy sources. One solution to overcome this is by making organic solar cells or better known as dye-sensitized solar cell (DSSC). DSSC using dye as an alternative solution to absorb sunlight. Researchers have previously used dye sourced from fruit extraction Duwet, skin mangosteen, dragon fruit and other natural dye sources. In this study used dye from the extraction of banana bud with methanol and tartaric acid were varied. The results showed that the highest voltage obtained from DSSC with a solution of the dye that uses methanol 90% and tartaric acid 10% with a voltage of 585 mV at testing indoors, in 1420 mV in testing outdoors in Padang (West Sumatra), and 728 mV at outdoor testing in Depok (West Java).

Karakteristik Mekanik Komposit Polyester E-Glass dengan Stacking Sequences [0°, 90°, 0°] Ilhamdi Ilhamdi; Dony Hidayat; Fadli Febriyan
METAL: Jurnal Sistem Mekanik dan Termal Vol 3, No 2 (2019)
Publisher : Department of Mechanical Engineering, Universitas Andalas

There is one fact that lead composite material to be a unique material among others. Its properties could be settable or flexible with arrangement of composition, orientation and production procedure. Meanwhile other materials seemed to have fixed set after fabrication. Nowadays, one of the widely developed structural composite is polymer based composite with inorganic reinforcement. It is useful in automotive or aircraft component because reasonable strength and much lower density compare to metal. In this study, e-glass fibers were manually laminated with polyester resin in open die using brush. This method is widely known as hand lay up. Fibers were set in stacking sequences of 0o, 90o, and 0o, means a fiber is in perpendicular direction to its neighbor fibers. After complete dried up, composite panel is cut of accordingly to ASTM standard for tensile and compressive testing specimen. In order to examine hole effect, center of gage length specimen was drilled off. Namely, specimen will be distinguished as no hole specimen and open hole specimen. Results showed tensile strength of 200.58 MPa and 155.22 MPa, compressive strength of 335.73 MPa and 254.1 MPa, for no hole and open hole specimen respectively. Introducing open hole reduces mechanical strength of composite both tensile and compressive. It could be mechanical consideration for safety design of material composite application. Failure mechanism of composite is also influenced by existence of open hole. When no hole specimen will experience failure at near to grip (LAT), open hole specimen has fracture line propagate from hole into width (LGM).

Disain Mesin Pengaduk Pakan Puyuh Yang Dilengkapi Dengan Komponen Penyemprot Cairan Fermentasi Ruzita Sumiati; Fahri Reza; Nandi Pinto; Adriansyah Adriansyah; Yuli Yetri
METAL: Jurnal Sistem Mekanik dan Termal Vol 6, No 1 (2022): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

This study was carried out to deal with reducing feed cost and provide high quality poultry feed for the local breed of quail through the provision of feed mixer machines equipped with fermentation equipment. Mixing feed poultry using machines is much faster, accurate and less energy consuming compered with manual mixing. Poultry feed mixing machine was designed, fabricated and tested. The machine consists of two function as mixing and fermented liquid spray. The design computations to handle a 400 Kg mass of feed and 4 L of fermented liquid. The machine was tested using afeed components divided into 170 kg for Maize bran, 120 kg for bran, 2 kg for mineral, 136 kg for Bone meal , 2 kg for Salt and 4L fermented liquid replicated twice at four mixing durations of 4, 8, 12 and 16 min. The perfect homogenious mixing was got in 16 min

Perancangan dan Analisis Ekonomi Pembangunan Pembangkit Listrik Tenaga Piko Hidro di Desa Garabak Data Kabupaten Solok Sumatera Barat Adly Havendri; Dendi Adi Saputra; Mulya Cipta Nurmansyah
METAL: Jurnal Sistem Mekanik dan Termal Vol 1, No 1 (2017): Volume 1, No 1 (2017)
Publisher : Department of Mechanical Engineering, Universitas Andalas

In this research, development of a pico hydro power plant utilizing the river with water flow 0.6 m3/s and head 1.5 m is conducted. According to the available potential of the area, the waterwheel turbine with type undershot and efficiency about 71-76% is selected. The synchronize generator with 1 phase and 10 kVA capacity is chosen according the maximum generated power of the plant power which is about 8.81 kW. Due to the loses inside the turbine and generator, therefore the average electrical power that can be distributed is 4.96 kW. For stabilizing the voltage and current from the generator, a 7,5 kVA stabilizer with safety factor 20% is used. As the result, the stable electrical power 34.759,68 kWh can be generated every year with the capacity factor about 80%. The design results of the pico hydro power plant indicated that the power plant in Garabak Data able to produce the electrical power about Rp899,05 per kWh.

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Lovely Son

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lovelyson@eng.unand.ac.id

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+6281213552846

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metal@eng.unand.ac.id

Editorial Address
Kampus Limau Manis, Jurusan Teknik Mesin, Fakultas Teknik, Universitas Andalas

Location
Kota padang,

Sumatera barat

INDONESIA

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Lovely Son

Contact Email lovelyson@eng.unand.ac.id

Phone +6281213552846

Journal Mail Official metal@eng.unand.ac.id

Editorial Address Kampus Limau Manis, Jurusan Teknik Mesin, Fakultas Teknik, Universitas Andalas

Location Kota padang, Sumatera barat INDONESIA

Abstract

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Abstract

Abstract

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Abstract

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Abstract

Contact Name
Lovely Son

Contact Email
lovelyson@eng.unand.ac.id

Phone
+6281213552846

Journal Mail Official
metal@eng.unand.ac.id

Editorial Address
Kampus Limau Manis, Jurusan Teknik Mesin, Fakultas Teknik, Universitas Andalas

Location
Kota padang,

Sumatera barat

INDONESIA