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All Journal Jurnal Teknik Mesin Rekayasa Mesin Jurnal Rekayasa Material, Manufaktur & Energi Jurnal Inotera Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Jurnal Cahaya Mandalika Malikussaleh Journal of Mechanical Science Technology kawanad jes Jurnal Polimesin
Ahmad Syuhada
Dosen Teknik Mesin - Universitas Syiah Kuala
Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering

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Analisis Sistem Pembangkit Listrik Tenaga Angin Kota Meulaboh Maidi Saputra; Ahmad Syuhada; Hamdani Hamdani
Jurnal Teknik Mesin Unsyiah Vol 2, No 2 (2014)
Publisher : Jurnal Teknik Mesin Unsyiah

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Abstract

Which more lower deficit of fossil energy for generated power plant, in order to need to do wind power generation plant analysis based on renewable energy which is wind turbine horizontal type. This study is analyzing a power system with electric power load Meulaboh town by using a hybrid power generation system which HOMER between wind turbines and diesel generators. Wind resources are used is measured by BMKG Meulaboh Station, which is 6 m/s and the value of the price of diesel fuel used by the generator is equal to 0.5 $/L. The results of the simulation is given by the value of the Net Present Cost (NPC) and the lowest, in the amount of $ 66,535,084 for the value of Renewable Factor (RF) was 58% and for the value of Renewable Factor (RF), the largest at 71%, the value of the Net Present Cost (NPC) amounted to $ 68,091,256.
Analisis Kenyamanan Thermal Pada Ruang Pendaftaran Pasien Gedung RSUD Meuraxa Banda Aceh Junaidi Junaidi; Ahmad Syuhada; Zahrul Fuadi
Jurnal Teknik Mesin Unsyiah Vol 3, No 1 (2015)
Publisher : Jurnal Teknik Mesin Unsyiah

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Abstract

The improvement status of RSUD Meuraxa from non referral to full service and equipped hospital brought several implications to the hospital services particularly in dealing with the increase of patients. The increasing flow of patients in line results in the escalation of the room temperature. The condition was affected by thermal inconveniency caused by direct thermal radiation from the sun, embedded and congenital metabolism of patients (Met), patient clothing insulation (Clo), room equipments and room air circulation. The phenomena affect human performance in their activities. To maintain its status as a general hospital, the impaired condition should be addressed by knowing first the source of the cause. Several measures are normally conducted through direct assessment of the room thermal condition involving the temperature measurement, relative humidity, rate of air flow, and sun ray intensity. Based on the measurement and analysis, it is found that the increase in the room’s occupation has resulted in average increase of room temperature and relative humidity of 30C and 2%, respectively.Themaximum indoor temperature reached 360 while the minimum humidity was 44%. The average indoor air flow rate was less than 1 m/s. It is suggested that one possible solution to improve the thermal inconvenience on the room is by installing the air blower to improve the air circulation of the room.
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)
Publisher : Jurnal Teknik Mesin Unsyiah

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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.
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%.
Optimasi Penyerapan Panas Memanfaatkan Energi Matahari pada Kolektor M. Iqbal A.P.; Ahmad Syuhada; - Hamdani
Jurnal Teknik Mesin Unsyiah Vol 1, No 2 (2012)
Publisher : Jurnal Teknik Mesin Unsyiah

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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°.
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)
Publisher : Jurnal Teknik Mesin Unsyiah

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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.
Analisa Potensi Energi Surya untuk Energi Listrik Banda Aceh dan Sekitarnya Ahmad Syuhada; Zahrul Fuadi; Bayu Alif Satari
Jurnal Teknik Mesin Unsyiah Vol 7, No 1 (2019)
Publisher : Jurnal Teknik Mesin Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (17.414 KB) | DOI: 10.24815/jtm.v7i1.14044

Abstract

Electrical energy crisis has become a common problem in Indonesia. Particularly Banda Aceh and surrounding areas, the impact of this phenomenon was a direct impact on the activities of the community. In general, Indonesia has a tropical climate that is potentially going to optimal utilization of solar energy. Particularly Banda Aceh and the surrounding in general have a geographical location in the coastal areas, which have the potential of solar energy potential. This study aims to analyze the potential value and also the effectiveness of solar energy, then analyze the electrical power generated by the solar cell in Banda Aceh and its surroundings. To determine the value of the potential of solar energy begins to measure and collect the value of the intensity of the sun. In case this is done by using the solar cell by measuring the intensity of the sun, current, voltage and temperature. This research was supported by the data collecting solar intensity value for 2 months at three different points, namely in Thermal Engineering Laboratory, BMKG Blang Bintang and SMK PPN Saree. This study degan manifold uses polycrystalline silicon solar cell with an area of 0.715 m2 solar intensity values obtained on October 27, 2016 amounted to 596 Watt / m2, and the output power of electricity by an average of 52.27 Watt. In  October 28, 2016 the average light intensity of 475 Watts / m2dan electric power output by an average of 31.37 Watt. In October 31, 2016 the average light intensity of 330 Watts / m2, and the output power of electricity by an average of 30.77 Watt. In 1 November 2016 the average light intensity of 686 Watts / m2, and the output power of electricity by an average of 50.93 Watt. In 2 November 2016 the average light intensity of 675 Watts / m2, and the output power of electricity by an average of 49.84 Watt.
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)
Publisher : Jurnal Teknik Mesin Unsyiah

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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)
Publisher : Jurnal Teknik Mesin Unsyiah

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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.
KAJI SISTEM PEMANASAN BERTAHAP PADA PENGOLAHAN MINYAK KELAPA MURNI ratna sary; Ahmad Syuhada; Dedi Afandi
Jurnal Teknik Mesin Vol 9, No 2 (2021)
Publisher : Jurnal Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jtm.v9i2.25821

Abstract

Some of the characteristics of virgin coconut oil are to produce products with lower water and acid content, clear color and have a long shelf life of 12 months. Pure coconut oil is growing rapidly not only for household needs, but is widely used for cosmetics and medicine. From an economic point of view, virgin coconut oil has a higher selling price than coconut oil which is traditionally processed by heating coconut milk or depositing coconut milk for a long time, resulting in a rancid odor and poor quality due to high water and free fatty acid content. Therefore, research on the heating process was carried out to obtain virgin coconut oil with lower water content and free fatty acids according to SNI. There are 3 methods of making virgin coconut oil, namely the method of fermentation, inducement and heating. The method used in this research is the gradual heating method, the heating method is tested with gradual heating or one heating, for gradual heating, preheating is carried out at a temperature of 60-110°C with 9 hours of drying time and final heating with a temperature variation of 60°C ( sample A), 70°C(sample B), 80°(sample C) and drying time of 5 hours, 4 hours and 3 hours. The results showed that the drying air temperature had an effect on product quality and drying time. The results of calculations and tests show that the most effective treatment is sample A with the lowest water content and free fatty acid content reaching 0.08% and 0.10%.
Co-Authors - Alchalil - Azhari - Hamdani - Mursalin - Ramadlan - Zulkifli . Zulfan Abraar Shalahuddin Adi Saputra Ismy Akhyar Akhyar Akhyar Akhyar Al Kautsar, Teuku Muhammad Aldine Al Munawir Amrizal Amrizal Anan Niazi Usman Andi Yusra Ansar, Khairil ARHAMI ARHAMI Arie Hantama Siregar Arya Rudi Nasution Asri Asyqar, Muhammad Aufa Azwinur Azwinur Bachtiar, Dandi Bayu Alif Satari Dandi Bachtiar Darmawan Darmawan Dedi Afandi Dogar Situmeang Erliadi Erliadi Erwin Ash'ari Fadliani Fadliani Farid Isnan Fazri Amir Fikri, Thaharul Hamdani Umar Heli Suansyah Ikhwan Ikhwan Iqbal Iqbal Ira Devi Sara Irwansyah Syam Junaidi Junaidi M Iqbal A.P M. Iqbal A.P. M. Nizar Machmud Maidi Saputra Masri Meliagrina Meliagrina Muhammad Faisal Muhammad Hatta Muhammad Ilham Maulana Muhammad Ilham Maulana Muhammad Sayuthi Muhammad Thaib Hasan Muhammad Yusuf Muhtadin Mustika, Yulanda Dwi Nasution, Muhammad Syukri Perangin-Angin, Alifia Kaneysha Putra, Mhd Irwansyah Putra, T. Edisah Ratna Sari Ratna Sari Ratna Sary Ratna Sary Razali , Razali Razali Razali Razali Thaib Razali Thaib Rizkia, Rizkia Sadam Husin Samsul Bahri Sarwo Edhy Sofyan Sofyan, Sarwo Edhy Suansyah, Heli Suriadi T. Edisah Putra Tarmizi Tarmizi Taufiq Taufiq Teuku Juliadi Teuku Zulfadli Teuku Zulfadli Ully Muzakir Ulul Rizza Jumada Umurani, Khairul Yufandi, Asra Yusmanizar Yusmanizar Zahrul Fuadi Zahrul Fuadi Zahrul Fuadi Zahrul Fuadi Zakirullah Zakirullah Zulfadhli Zulfadhli Zulfan Zulfan Zulkifli Zulkifli