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PROGRAM STUDI TEKNIK MESIN - JURUSAN TEKNIK MESIN DAN INDUSTRI - FAKULTAS TEKNIK - UNIVERSITAS SYIAH KUALA, Jln. Syech Abdul Rauf, No. 7, Darussalam, Banda Aceh 23111, Aceh INDONESIA
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Jurnal Teknik Mesin
Published by Universitas Syiah Kuala
ISSN : 23018224     EISSN : 26230747     DOI : -
Core Subject : Engineering,
Mechanical Engineering
Arjuna Subject : -
Articles 5 Documents
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Search results for , issue "Vol 8, No 1 (2020)" : 5 Documents clear
Pengaruh Penerapan Metode Ripping pada Penambangan Batubara Terhadap Produktivitas Crushing Plant (Studi Kasus: PT Mifa Bersaudara, Aceh Barat) Haqul Baramsyah; T. Zulfikar; Nurul Kamal; Melya Gusnira Nilda
Jurnal Teknik Mesin Unsyiah Vol 8, No 1 (2020)
Publisher : Jurnal Teknik Mesin Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jtm.v8i1.18245

Abstract

PT Mifa Bersaudara is a coal mining company that operates in Meulaboh, Aceh Barat. The main activities are extracting coal from the ground, loading, hauling, and crushing the coal to a specific size. There are two crushing plants that currently running at the site, Fix Crusher 01 (FC01) and Fix Crusher 02 (FC02). The production target for these crushers are 550 tons/hours and 450 tons/hours, respectively. However, the crushers could not meet the target. The main problem is the number of boulder materials from mining front almost 8.22 %, exceeding the optimum percentage of crusher’s input. In order to fix this matter, the application of ripping method in mining the coal is needed. This method utilizes Bulldozer CAT D8R, equipped with ripper, to break down the coal seam. Based on the calculation, this method could decrease the percentage of boulder materials from 8.22% to 3.04%. It enhances the productivity of excavator from 229.71 tons/hours to 284.05 tons/hours. Then, the productivity of the crushers also increase from 545 to 552 tons/hours for FC01 and from 347 to 452 tons/hours for FC02. Therefore, the application of ripping method in excavating the coal seam could increase the productivity of coal crushing plant.   
Perancangan Sistem Kendali Prosthetic Arm Penggerak Motor Servo dan Sensor Flex Berbasis Mikrokontroler Udink Aulia; Syahriza Syahriza; M. Rival Abizar
Jurnal Teknik Mesin Unsyiah Vol 8, No 1 (2020)
Publisher : Jurnal Teknik Mesin Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jtm.v8i1.18240

Abstract

This study examines about Prosthetic robotics technology which gradually continue to develop so that its use is wider. In this research author designed a control system on Microcontroller to move Prosthetic Arm. Prosthetic is an artificial device to replace the missing part of the body, this condition can occur through the condition at birth (abnormalities), illness and trauma. The purpose of this research is to create a Prosthetic Arm Prototype that can perform motion gripping, squeezing and removing. Prosthetic Arm was designed by using several control systems such as NANO Arduino, servo motor, flex sensor and Bluetooth as the main component. The Prosthetic Arm movement can only be operated based on the input of the control system that has been designed so that the movement operating on the Prosthetic Arm is desired. The result of this study shows that Prosthetic Arms can do gripping motion at 155° – 173° servo degree, squeezing motion at 180° servo degree and removing motion at 0° servo degree.
Pengaruh Variasi Bentuk Plat Terhadap Performansi Solar Water Heater Darwin Harun; Muhammad Ilham Maulana; Teuku Syahrul; Masri Ibrahim
Jurnal Teknik Mesin Unsyiah Vol 8, No 1 (2020)
Publisher : Jurnal Teknik Mesin Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jtm.v8i1.18241

Abstract

Thermal energy is one form of energy that is very crucial for human being. It can be obtained through the sun, i.e, that is solar energy. Solar energy is used widely both in industry and houshold. One of the most important component of solar water heater is thermal energy collector or known as absorber. Solar collector is a device utilized to convert sun radiation to thermal energy. This research wanted to examine the effect of different shapes of collector. The methodolody used is by varying the shapes of plat plate, where plate A has a square shape and plate B has has isosceles shape. Collector dimension is 1.5x0.8 m with these two shapes constructed from stainless steel. Pipe used for fluid is made from copper with 1 in diameter and 1.4 m length. Thermal insolation is used from rubber to decrease heat loss from pipe. Plate B collector with isosceles shape showed the highest efficiency compared to plate A collector with square shape. The highest outlet fluid temperature from plate B is 670C with sun radiation 1198 W/m2. The highest useful energy is 209.91 Watt from plate B at 13.30 and efficiency is 16.23% at 13.00WIB.
Kaji Eksperimental Kekuatan Briker Hasil Reduksi Bijih Besi Dengan Batubara Muda Menggunakan Metode Hot Briquetted Iron (HBI) Khairil Khairil; Sarwo Edhy Sofyan; Andre Adhitya
Jurnal Teknik Mesin Unsyiah Vol 8, No 1 (2020)
Publisher : Jurnal Teknik Mesin Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jtm.v8i1.18242

Abstract

This research aims to study the mechanics (strength) properties of iron ore briquettes. Iron ore briquettes are made using the hot briquetted iron method (HBI). HBI is a briquette after reduction directly and pressed at a temperature above 650 ⁰C and has more density than 5000 kg/m3. The specimens used were iron ore briquettes made of the composition of iron ore, coal, and adhesives. The composition of the briquettes is 55: 40: 5, 65: 30: 5, 75: 20: 5, 85:10: 5 and the reduction temperature is 750⁰C,850⁰C,950⁰C and 1050⁰C. There are 16 briquett specimens. After the briquettes are made, the briquettes are reduced using a reduction blast furnance which is fuel by LPG and CO2 gas. When the mass of briquette is no longer decrease ore the time (reach steady state condition) the briquettes take out from the blast furnance for press. Pressing is carried out in hot briquettes conditions and the press load is 15 tons. The results obtained from testing the I-Type Tumbler Test have more small paricle ruptures because the briquettes have lost their adhesive during the reduction process and coal does not affect the strength of the HBI briquettes. After being reduced briquettes are given more adhesive so that briquettes can be tested again. Iron ore briquettes after reduction are stroger than those before reduction. In the variation 85:10:5 obtained from testing I-Type Tumbler Test iron ore briquettes test after reduction has a number of particle small rupture 0,21% while iron ore briquettes before reduction of 3,35%.
Kaji Pemanfaatan Atap Sebagai Pemanas Pada Sistem Pengering Bawang Merah (Allium Ascalonicum L.) Ahmad Syuhada; Ratna Sary; Arie Hantama Siregar
Jurnal Teknik Mesin Unsyiah Vol 8, No 1 (2020)
Publisher : Jurnal Teknik Mesin Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jtm.v8i1.18243

Abstract

Allium Ascalonicum L. are one of the agricultural commodities that grow in Aceh that can bear fruits throughout the year. In 2017, the total productive land area reached 725 hectares (HA) with a total production of around 5,739 tons per year. The average of the harvested Allium Ascalonicum L has high levels of water in range of 90 – 92 %, it is necessary to do a better process of drying / storing Allium Ascalonicum L according to SNI 01-3159-1992. This study aims to determine the effect of heating with four variations of flat plate type roofs (iron, aluminum, zinc, iron coated iron sand) so as to increase the rate of heat transfer in the drying chamber. Data is collected at the absorber, heater output, pipe exit, and onion drying / storage chamber. Heaters with an iron roof type are those that best distribute the pipe output temperature of 63 0C and room temperature of 42.6 oC. The type of iron roof has a material shrinkage of 10.8%, the type of iron roof coated with iron sand has a material shrinkage of 10.5%, the type of zinc roof has a material shrinkage of 10%, the type of aluminum roof has a material shrinkage of 7.8%. The highest room humidity was achieved in the aluminum roof type by 78% and the lowest in the iron roof type was 40%.

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