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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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INDONESIA
Jurnal Teknik Mesin
Published by Universitas Syiah Kuala
ISSN : 23018224     EISSN : 26230747     DOI : -
Core Subject : Engineering,
Mechanical Engineering
Arjuna Subject : -
Articles 106 Documents
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Pembuatan Sistem Kendali Navigasi Wahana Selam Nir Awak Auv (Autonomous Underwater Vehicle) Muhammad Tadjuddin
Jurnal Teknik Mesin Unsyiah Vol 1, No 3 (2013)
Publisher : Jurnal Teknik Mesin Unsyiah

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Abstract

Marine observation and research activities require a suitable transportation means that has an ability to bring necessary equipment for data collection and observation into the sea. One of the means that has the ability is AUV (Autonomous Underwater Vehicle), an electric powered underwater vehicle. The vehicle does not require cable connection from the surface and has an ability to move to global positions according to programmable trajectory installed in a microcontroller and other navigation equipment. The control system of the AUV trajectory is programmed in the microcontroller. The navigation equipment consists of integrated sensor. The main sensor used is global positioning sensor, digital compass, pressure sensor, and 3-axys gyroscopes. The main focus of this paper is the design and application of the control system for an underwater survey vehicle that has an ability to bring necessary equipment for observation of coastal area. The vehicle moves from an observation point to another according to GPS assisted programmed data. The control system consists of the thruster system, the depth control system, the positioning system and compass system. The design and algorithm for the control system is proposed.
Rekayasa Komposit Serat Sabut Kelapa sebagai penguat dan Styrofoam Sebagai Matriks - Hanif; Sulaiman Thalib; Samsul Rizal
Jurnal Teknik Mesin Unsyiah Vol 1, No 2 (2012)
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Abstract

Coconut fibre which is extracted from outer shell of a coconut is a type of natural fibre used as composite board reinforcement in this research. The fibrebinder used in this research was stryrofoam which is a material from polysterene. This research was aimed at finding out the appropriate composition by weight between coconut fibre and polysterene and to find out the physical, mechanical and morphological characteristics of composite board resulted from the engineering process. The construction of composite board was started by cutting the fibres with the length of ≤ 5 mm, then dyeing them into NaOH for 4 hours. After those process, the fibres were dried and weighted. The Styrofoam was dissolved into silane before it was weighted based on its composition. After the coconut fibre and polysterene mixtures were mixed,they were poured into the composite board mold. The benefit of this composite board is that it is more water resistant. The test results for tensile, density, moisture content, and thickness swelling meet the Indonesian National Standard (SNI) 03-2105-2006. The flexural strength of composite board which meets the standard is the compositions of 30:70, 40:60, and 50:50, while the compositions of 60:60 and 70:30 do not meet the standard.
Sistem Kendali Navigasi Wahana Selam AUV Menggunakan Jaringan GSM Udink Aulia; Muhammad Tadjuddin
Jurnal Teknik Mesin Unsyiah Vol 1, No 4 (2013)
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Abstract

Indonesian ocean has a riches of maritime ​​fishery potency, so fishery mapping is important to be maintained, examined and explored. Fishery potency observation requires a vehicle to bring the observations and data collection equipments to the seabed by  an electric-powered underwater vehicle or AUV (Autonomous Underwater Vehicle). AUV is a kind of underwater vehicle that has an ability to bring underwater observation’s instrument. The operation of these vehicles is wireless and autonomous. It is able to move to specific locations in accordance with trajectory in the programmable microcontroller and the GPS sensors. The aim this research is to design a control system for underwater survey that can make a communication  to control center on the beach by sending and receiving SMS thru GSM network. This AUV communication systems to explore coastal area, moving from one point of observation to the next observation point (point to point) in accordance with the latitude and longitude  that is programmed and customized using GIS MapQuest software, and also trajectory correction control system by using GPS. In this paper, we described control systems and data communication for navigating auv based on GPS, GSM and GIS technology. Development control systems includes trajectory monitoring system, long range control by GSM network and position tracking by GIS .
Simulasi dan Pengukuran Unjuk Kerja Sistem Pompa Air-Energi Surya Untuk Kota Banda Aceh Ahmad Syuhada; Razali Thaib; - Hamdani
Jurnal Teknik Mesin Unsyiah Vol 1, No 3 (2013)
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Abstract

The use of electrical energy to supply either clean water or water for agricultural purpose persistently to increase in line with the population growth. The primary objective of this study is to conduct a feasibility study of the utilization of solar energy for driving pumps in Aceh Province, to perform computer simulations for designing solar energy water pump system, and to measure the performance of the small scale solar energy water pump system. The analysis result shows that the potential of solar energy in Aceh Privince can be used to drive the pump for irrigation and clean water for the needs of the community. The performance measurement result shows that the 50 Wp PV panel is capable of driving the pump with 60 Watts of power for 4-5 hours, on a cloudy day, and 8-10 hours on a sunny day.
Optimasi Penyerapan Panas Memanfaatkan Energi Matahari pada Kolektor M. Iqbal A.P.; Ahmad Syuhada; - Hamdani
Jurnal Teknik Mesin Unsyiah Vol 1, No 2 (2012)
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Abstract

Solar energy is a renewable energy that can be utilized for human needs for various purposes such as electricity, heating, hair, and so forth. Solar collector is a device that collects solar energy and converts it into thermal energy and redirects the energy back into the fluid. Three variations of barrier angle were prepared in order to optimize the absorption of solar energy in a collector. Multiple pass turn were utilized to maximize the heat absorption. The size of the collector is 250 cm × 85 cm. Each side of absober box is coated with aluminum of 10 mm thick. Iron sand is used as absorber with thickness of 6 m. The collector box is tilted with 15° angle. Measurements were carried out for each multiple pass turn angle ; 130°, 180° and 90°. The tests were carried out in an open field in front of the Faculty of Engineering, Syiah Kuala University. The results show that temperature tends to be similar for all three variations of barrier angle. For the barrier angle of 130°, the highest temperature achieved was 93.3°C during 12:00 to 13:00 pm. The highest temperature achieved for the other two variations are 91.2°C for the barrier angle of 90° and 90.2°C for the barrier angle of 180°.
Kaji Eksperimental Perpindahan Panas Peleburan Parafin Sebagai Material Penyimpan Panas pada Alat Penukar Kalor Bersirip - Zulkifli; Ahmad Syuhada; - Hamdani
Jurnal Teknik Mesin Unsyiah Vol 1, No 4 (2013)
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Abstract

In this research, experimental study is conducted related to the latent heat transfer and thermal energy storage using finned tubes. An experimental unit consisted of data acquisition, the heat exchanger shell and tube were used to improve heat transfer. The fluid heat pipe was designed in longitudinal fin and radial fin. Paraffin wax was used as a thermal storage medium. The characteristics of heat transfer from fluid to paraffin wax is investigated in different heat flux conditions. The experimental results show that the heat transfer characteristics show similarities to the heat exchanger tubes. In the preheating process, it is dominated by conduction, but at the melting temperature of the heat transfer, it is dominated by convection. The use of longitudinal finned pipe has been able to increase the heat transfer rate.
Evaluasi Pembangkit Listrik Tenaga Angin Kecepatan Rendah Sebagai Penggerak Refrigerator Es 300 Kg/Hari Untuk Nelayan Adi Saputra Ismy; Ahmad Syuhada; - Hamdani
Jurnal Teknik Mesin Unsyiah Vol 1, No 1 (2012)
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Abstract

Generally, the fishermen in the fishing village of Lancang only 20 trips/month of the year. The average total amount of ice required for the first type of fishing boat is 300 kg ice/day and 150 kg of ice/day for both types of fishing vessels. So, based on the total number of observations of ice demand data is 9000 kg/month (300 kg ice/day). One solution that can be taken is the utilization of wind energy resources owned by the village to generate electrical energy as the driving engine refrigerator. Methods of research conducted in three phases, the first stage is filled with wind potential measurement, processing and analysis of wind speed data. In the second stage of the development of modeling performed to evaluate the performance of Genesis turbines based on the data load and wind potential. The third stage is filled with measurements of 10 KW wind turbine performance and then made ​​comparisons with modeling results. From the analysis of wind speed data obtained from the measurement results obtained by the average wind speed reaches the village of Lancang 3-5 m/s at a height of 15 m above sea level. Based on analytical results obtained using the software Homer wind turbine energy production is 7.474 kWh/year and the results of measurements of overall performance of the turbine can be concluded that wind turbines are the object of study is only able to deliver an average power 3-7 KW.
Pengaruh Sudu Pengarah Aliran pada Turbin Aliran Aksial Head Rendah - Azhari; Ahmad Syuhada; - Hamdani
Jurnal Teknik Mesin Unsyiah Vol 1, No 4 (2013)
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Abstract

The aim of this thesis is to analysis the effect of using of guide vane in order to increase turbine rotation and power. This thesis is consisting of two stages. First stage is testing the turbine without guide vane and second stage is testing the turbine with guide vane. Testing was did at Gampong Juli Keude Dua, Kecamatan Juli Kabupaten Bireuen.The test did on three kind discharge, 0,14 m3/s, 0,12 m3/s, and 0,10 m3/s by using three kind of guide vanes diameter, 25 cm, 27 cm, and 29 cm. Based on experemental result, the best efficency is 80,9 %, given from the 29 cm guide vane diameter and turbine rotation on 610 rpm with discharge  0,14 m3/s.
Pemanfaatan Boil-Off Gas Sebagai Bahan Bakar Kapal Pengangkut Gas Ikhwan Ikhwan; Hamdani Hamdani; Ahmad Syuhada
Jurnal Teknik Mesin Unsyiah Vol 2, No 1 (2014)
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Abstract

LNG carrier is the most reliable primary means of transportation of LNG in the world. In operation, each LNG carrier would result in boil-off gas from the cargo hold due to the expansion. BOG The average amount that can be produced is 0.15% of the tank capacity and unloading space per day. For that, there is great opportunity in the use of BOG as fuel in LNG carrier resulting in fuel savings. One of the driving forces that can take advantage of BOG is a Combined Cycle Propulsion Plant (CCPP) of a gas turbine and a steam turbine, a gas turbine with HRSG and dual fuel technology for generating thermal energy from the exhaust gas of gas turbines. Improved efficiency and are able to use as fuel BOG will be able to lower the fuel oil consumption of the driving force. The study was conducted by comparing the fuel consumption of LNG carrier propulsion system with a conventional steam turbines, compared to the LNG carrier using the CCPP. CCPP eventually be an option with the highest fuel economy both in terms of BOG utilization, efficiency and fuel use. For the 138,000 m3 LNG carrier of the same, with the CCPP do MDO-fueled fuel savings of U.S. $ 46,117.80 per day and for using the CCPP BOG, fuel savings of U.S. $ 56,472.70 per day.
Pengaruh Komposisi Kertas Bekas Terhadap Sifat Mekanik dan Ketahanan Air pada Komposit (Kertas Bekas, Gipsum dan PVA) Muntazar Muntazar; Samsul Rizal; Sulaiman Thalib
Jurnal Teknik Mesin Unsyiah Vol 4, No 1 (2016)
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Abstract

The purpose of this study was to determine the effect of used paper composition on the mechanical properties and water resistance to the composite (used-paper, gypsum and PVA) expected a composite that has good flexural strength, good water resistance and has a lighter weight than current composites. The materials used in the test specimens are used paper, gypsum and PVA. This research was conducted at the Laboratory of Mechanical Engineering Materials Syiah Kuala University, the flexural testing using ASTM C473 to get the mechanical properties, a standard SNI 03-6434-2000 used to test the water resistance and methods of morphology (SEM photo) to study the structure of the composite. The results showed that 20 percent composites by the addition of filler material (used paper, PVA) to get flexural the value of 9,00 MPa, water resistance of 4,067 percent and have a good bond, mutual binding between the gypsum crystals with used paper fibers. The of all testing, composites with 20 percent adding filler material have lower weight get of 8.98 percent when compared with that sold products. 

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