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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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Perancangan Sistem Pembangkit Listrik Hibrida untuk Menggerakkan Pompa Air di Area Pertanian Fazri Fazri; Ahmad Syuhada; Zahrul Fuadi
Jurnal Teknik Mesin Unsyiah Vol 4, No 1 (2016)
Publisher : Jurnal Teknik Mesin Unsyiah

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Abstract

The economic development and population growth in Indonesia has been increasing rapidly. Most of the agricultural land converted into residential and industrial areas, while many farmers moved to a mountainous area. Farmers in mountainous agricultural area using existing sources of water in a small mountainous rivers to irrigate agricultural land, they use man power to lift water from a small river to agricultural land, it is highly ineffective in agricultural products. Farmers with adequate financial can use pumps for raising the water to agricultural land. But because it is far from the power source, pump can only work with the use of expensive fossil fuels. Therefore, to overcome this problem it is necessary to use a renewable energy source which is available in the area such as solar energy and wind or both of them. This research examines about the hybrid power plant (PLTH) of solar and wind energy to power the agriculture pump. The wind speed and solar radiation data is obtained from measurements by BMKG-SMPK-Plus Sare. The output power of the Photovoltaic is equal to 193 W with the exposure time of 5 hours/day, while the power output of the wind turbine is 459.84 W with a 3m blade diameter long and 7 hours/day blowing wind. The pump power was 558 W with a capacity of 20,160 liters/hour, it is used for 15 ha of agricultural area. Based on the analysis results, the proposed system will generate an initial investment cost of US$ 14.938 with power production equal to 3.210 kW/year.
Studi Perencanaan, Pembuatan Dan Pengujian Turbin Aliran Aksial Head Rendah - Mursalin; Ahmad Syuhada; - Hamdani
Jurnal Teknik Mesin Unsyiah Vol 1, No 4 (2013)
Publisher : Jurnal Teknik Mesin Unsyiah

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Abstract

The study is done to get an axial low head turbine design that gave good performance by using flat blade to further simplifying manufacture. The study is consists of three stages. First, designing an axial low head turbine. Second, manufacturing it and the last, testing on turbine performance. The testing that conducted to 3 m head use three kind of discharges, 0,14 l/s, 0,12 l/s, and 0,10 l/s. Three kinds of runners with blade angle, 30o, 35o, and 40o are also use in the testing. Based on the result of the test, it is known that the best efficency, 76%, turbine rotation on 613 rpm and power 2,013 kW is given by the blade angle 40o.
Pengaruh Diameter Hidrolik Terhadap Perpindahan Panas Kolektor Surya Belokan Tajam Ahmad Syuhada; Ratna Sary; Zakirullah Zakirullah
Jurnal Teknik Mesin Unsyiah Vol 7, No 2 (2019)
Publisher : Jurnal Teknik Mesin Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jtm.v7i2.18236

Abstract

Rectangular crossings with sharp turns have complex three-dimensional structures because the flow separation is caused by sudden changes in direction of flow in sharp turns. This study aims to determine the effect of variations in the width of the sharp channel solar collectors with hydraulic diameter factors to increase the heat transfer rate in solar collectors. The size of the collector examined was 2440mm x 1220mm in the form of a rectangular cross-section. Solar collectors use iron and iron gram absorber with a thickness of 30mm, the thermometer is placed on each track, channel, absorbent and output temperatur  of each solar collector. The results of the study can be concluded that the solar collector with the largest hydraulic diameter value of 223 cm will produce the highest output temperatur  and the temperatur  distribution at the collector can reach 91º C at 13.30. This is because the greater the value of the hydraulic diameter or cross-sectional area will increase the heat transfer rate.
Kaji Eksperimental Kehilangan Panas pada Dinding Ruang Bakar Fluidisasi Berbahan Bakar Biomassa M. Faisal; Ahmad Syuhada; Hamdani Hamdani
Jurnal Teknik Mesin Unsyiah Vol 2, No 2 (2014)
Publisher : Jurnal Teknik Mesin Unsyiah

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Abstract

Biomass has several advantages, especially as it is renewable in nature. The low energy content owned by biomass requires the use of effective techniques, such as gasification.  This research was to determine the rate of heat transfer that occurs in the burning of fuel in the combustion chamber fluidized types. The benefit of this research is to identify the heat loss in biomass combustion system. The fuels used in this study are wood-planed chips, branches of dry wood and areca nut husk. The size of fuel was 2 to 3 mm. The fuel was weighed to 2 kgs for one testing/biomass. The combustion duration was 50 seconds. The heat loss in biomass combustors with wood-planed chips occurred in 30 seconds at Tf 724oC and TW 203 oC, the heat loss was 26813.33 W/m. The heat loss in the combustion chamber with biomass wood-planed chips in 15 seconds at Tf-average 334 oC and Tw 44 oC, the heat loss was 2947.03 W/m. The heat loss in biomass combustors with branches of dry wood in 30 seconds at Tf 713 oC and Tw 201 oC, the heat loss was 26350.15 W/m. The heat loss in the combustion chamber with branches of dry wood biomass in 20 seconds at Tf-average 286 oC and Tw 42 oC, the heat loss was 2479.57 W/m. The heat loss in biomass combustors with areca nut husk occurred in 20 seconds at Tf 515 oC and Tw 137 oC, the heat loss was 19453.82 W/m. The heat loss in the combustion chamber with areca nut husk biomass occurred in 15 seconds at Tf- average 118 oC and Tw 39 oC, the heat loss was 802.81 W/m.
Kemampuan Dinding Kaca dalam Mentransferkan Intensitas Cahaya yang Melewati Dinding Kaca Taufiq Taufiq; Ahmad Syuhada; Hamdani Hamdani
Jurnal Teknik Mesin Unsyiah Vol 2, No 1 (2014)
Publisher : Jurnal Teknik Mesin Unsyiah

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Abstract

The sun transfers heat energy to the earth with radiation mode. To reach the air temperature with thermal comfort in the indoor air temperature then need to re-view using AC, but if the energy intensity of the sun's too much that goes into the conditioning room through a glass wall that will cause the AC is too big. This will lead to the use of electrical energy is too wasteful. To minimize the AC in the room caused by a number of incoming solar radiation intensity of heat is done by using a glass inhibitory properties of low light intensity. The purpose of this study was to determine the extent of the inhibitory effect of light intensity into the room by each type of glass. The research was done by varying the type of glass that will be mounted on the solar collector, rain glass, blue glass, black glass, One way glass, glass orange. Measurement of light intensity and temperature data were taken every 30 minutes within a period of 3 hours. Based on the results of the study five types of glass is the importance of the election of the best level of inhibition glass is types of glass One way because the light intensity 400 W/m2 - 500 W/m2, resulting in room temperature is 45 0C.
Kajian Sistem Pengkondisian Udara untuk Meningkatkan Tingkat Kenyamanan Termal pada suatu Ruangan Kerja Zulkifli Zulkifli; Ahmad Syuhada; Zahrul Fuadi
Jurnal Teknik Mesin Unsyiah Vol 4, No 1 (2016)
Publisher : Jurnal Teknik Mesin Unsyiah

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Abstract

Indonesia is a tropical country with a relatively high air temperatures. Increasing the temperature of the air outside the building space will increase in temperature in the room due to the heat transfer. Increasing air temperatures will occur in the thermal discomfort in space, resulting in a decrease in the effectiveness of work in the room. Conditions the average room temperature in May-September, 2013 in Banda Aceh is 330C-350C between the hours 11:00-13:00 WIB. This temperature is outside the limits of thermal comfort standards. To improve work efficiency in a room, the air must be conditioned to meet the thermal comfort standard SNI mounting method as a simple means of heat exchangers. Especially in the room that do not use often like indoor halls, and other sports, for this case by using the air conditioning air conditioner is too large investment and operational costs. In this study assessed a replacement air conditioning system with cold air in the conditioned room. In this study there are 3 air conditioning systems made is the replacement of AC system with fresh air into the space conditions, with the replacement of the air conditioning system is cooled with water to the space conditioning and replacement of the air conditioning system with a cooled with ice to the room conditioning. A room temperature of approximately 400C-500C air conditioned with new replacement 150C temperature-200C so that within 2-3 hours the room temperature dropped to 200C-250C and RH around 55-60%. So that the level of thermal comfort including thermal comfort within.
Studi Konduktivitas Panas pada Papan Partikel - Ramadlan; Ahmad Syuhada; Zahrul Fuadi
Jurnal Teknik Mesin Unsyiah Vol 1, No 4 (2013)
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Abstract

The purpose of this study is to determine the effect of variations in the use of fillers for particle board. Various composition of fillers from rice husk and wood sawdust were mixed with synthetic glue matrix of PVAC (Poly Vinyl Acetate Co-Acrylic) and port land cement to produce the particle board. Their effects to the thermal conductivity of particle board (fiberboard) is analyzed. Four walls of particle boards of 25 cm2 were installed in the specialy prepared test apparatus. The measurements were conducted for the surface temperature outside and inside with the measurement interval of  70 minutes. From the results of measurements, the smallest thermal conductivity property is given by kayu jati sawdust with a conductivity of 0.020 W/m0C. Rice husk particle board has a conductivity of 0.024 W/m0C, while the highest conductivity is given by rice husk bran particle board, which is 0042 W/m0C.
Analisis Unjuk Kerja Kompresor Sentrifugal Pada Unit Flare Gas Recovery PT. Arun NGL Teuku Juliadi; Ahmad Syuhada; - Hamdani
Jurnal Teknik Mesin Unsyiah Vol 1, No 3 (2013)
Publisher : Jurnal Teknik Mesin Unsyiah

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Abstract

PT. Arun NGL has made various efforts torecover losses of energy and water resources during the production process. One of the main focuses for energy conservation is flare gas recovery unit. The flare gas recovery system proposed is skid-mounted type. The primary equipments consists of two compressors that compress the gas from the flare header gas upstream liquid seal drum. The gas is then cooled for reuse in the fuel gas system. The flare gas compressor often experience surge problem due to compressor operating at low flow so that the pressure decreased dramatically while compressor head system stays at high pressure. The compressor playsan important role in generating high-pressure fuel gas. If the compressor is not able to produce enough pressure as required, the production of fuel gas will be disrupted.This analisis focused on the calculation the compressor performance, head, capacity efficiency, and compressor power. Based on the analisys, it is obtained that the flow capacity is 3500 m3/hr, head compressor is 5700 kJ/kg, and the compressor power is 9000 kW. The results show that the operating condition is still whitin the surge limitation.
Kajian Eksperimental Pembakaran Biomassa pada Ruang Bakar Fluidisasi Muhtadin Muhtadin; Ahmad Syuhada; Hamdani Hamdani
Jurnal Teknik Mesin Unsyiah Vol 2, No 1 (2014)
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Abstract

Combustion of biomass produces thermal energy that can be utilized of other energy utilities by conversion through fluidized combustion systems. Fluidized reactor with a system (fluidized bed) is an option to the existing conversion thermal energy in biomass. Fuel feed system on combustion chamber (combustor) and fluidized combustion reaction chamber (burner) at fluidization reactor unit integrated with utility boilers producing steam into the reactor performance targets, this is achieved by the provision of fuel to the prescribed amount and timeliness of feeder working system for supplying fuel to the combustion chamber (combustor). Maximum combustion temperature results obtained in between 20 to 30 seconds burning time for 2 (two) kg biomass. Combustion temperature is strongly influenced by the characteristics of biomass. Solid biomass character (wood chips and branches of dry wood planers) has a higher burning temperature of biomass fibers character (areca nut husk). The increase in temperature results for biomass combustion filamentous more quickly reach peak combustion temperature, the comparison is time for biomass burning wood character requires 30 seconds burning time , while for areca nut husk biomass only takes 20 seconds burning time for 2 kg of biomass .
Perancangan Turbin Francis untuk Pembangkit Listrik Tenaga Minihidro di Lhok Sandeng Kabupaten Pidie Jaya - Azwinur; - Hamdani; Ahmad Syuhada
Jurnal Teknik Mesin Unsyiah Vol 1, No 4 (2013)
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Abstract

The increase of population, followed by the increasing growth of the industry led to high demand of electricity. Many different ways have been done to find and use natural potential as electrical energy that can be used. The potential energy of water is one of the energy that can be converted into electrical energy maximally. One of still unused water potential energies is the water of Krueng Meureudu in Pidie Jaya. The river location is in Lhok Sandeng village, Meurah Dua sub district, Pidie Jaya. The width of the river ranges from 30 to 50 meter with the debit of about 10÷15 m3/ s. This can be used to generate electricity using Francis type water turbines to meet the energy requirements of the surrounding population. The first step in designing the turbine is to determine the turbine type based on the value of specific rotation (Ns) obtained from the head (H) and debit data (Q). Then, the design of main components, which are runner, shaft, spiral casing, guide vane and draft tube. Thus, based on the calculation, the dimensions and designs of the main components of the Francis turbine are obtained.
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