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All Journal Jurnal Teknik Mesin Journal of Engineering and Technological Sciences Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Vokasi Malikussaleh Journal of Mechanical Science Technology Journal Of Sustainability Perspectives Journal of Sustainability Perspectives Prosiding Seminar Nasional Teknik UISU (SEMNASTEK) JURUTERA (Jurnal Umum Teknik Terapan) Jurnal Polimesin JURNAL REKAYASA KIMIA & LINGKUNGAN
Hamdani Umar
Universitas Syiah Kuala
Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences

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Sulfur Removal in Bio-Briquette Combustion Using Seashell Waste Adsorbent at Low Temperature Mahidin, Mahidin; Gani, Asri; Muslim, Abrar; Husin, Husni; Hani, M. Reza; Syukur, Muhammad; Hamdani, Hamdani; Khairil, Khairil; Rizal, Samsul
Journal of Engineering and Technological Sciences Vol 48, No 4 (2016)
Publisher : ITB Journal Publisher, LPPM ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (361.363 KB) | DOI: 10.5614/j.eng.technol.sci.2016.48.4.8

Abstract

Presently, biomass is mostly utilized as co-fuel in coal combustion in view of energy diversification and emission reduction. However, since the coal content of bio-briquettes is high (up to 80% in this study), gas emissions such as those of SOx still occur. Therefore, the introduction of SO2adsorbent is common in coal briquette or bio-briquette combustion. A calcium-based material is usually used for this goal. The aim of this study was to observe the effects of desulfurization temperature and Ca/S ratio (Ca = calcium content in adsorbent; S = sulfur content in coal and biomass) on desulfurization efficiency and kinetics. The ratio of coal to biomass (palm kernel shell/PKS) was fixed at 90:10 (wt/wt) and the ratios of Ca to S were varied at 1:1, 1.25:1, 1.5:1, 1.75:1 and 2:1. The mixtures of coal, PKS and adsorbent were briquetted at a molding pressure of 6 ton/cm2 with Jatropha curcas seeds and starch mixture as binding agents. Desulfurization was performed within a temperature range of 300 to 500°C for 720 seconds at an airflow rate of 1.2 L/min. The results showed that the highest desulfurization efficiency (90.6%) was associated with the Ca/S ratio of 2:1 and temperature of 400°C. Moreover, the highest reaction rate constant of desulfurization was 0.280 min-1.
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.
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.
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)
Publisher : Jurnal Teknik Mesin Unsyiah

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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)
Publisher : Jurnal Teknik Mesin Unsyiah

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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.
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.
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.
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.
Co-Authors - Alchalil - Azhari - Mursalin - Zulkifli Abdullah, Nasruddin A Abdullah, Nazaruddin Abrar Muslim Abu Bakar Adi Musfadry Adi Saputra Ismy Ahmad Syuhada Ahmad Syuhada Ahmad Syuhada Akram Tamlicha Amalia Harmin Anan Niazi Usman Asri Gani Azwinur Azwinur Darmawan Darmawan Doni Risthiawan Erliadi Erliadi Erwin Ash'ari Fadliani Fadliani Fazri Amir ferri Festika Fitra Ilham Ramafunna Gani, Asri Hani, M. Reza Husni Husin Husni Husin Ikhwan Ikhwan Iqbal Iqbal Iskandar Hasanuddin Jalaluddin Jalaluddin Khairil Khairil Khairil, Khairil Khiaril Khairil Lely Mastura M Iqbal A.P M. Reza Hani Mahidin Mahidin Mahidin Mahidin Mahidin, Mahidin Mahyuddin Maidi Saputra Maimun Syukri Meri Andriani Meri Andriani Muhammad Amin Muhammad Amin Muhammad Faisal Muhammad Syukur Muhammad Thaib Hasan Muhammad Zulfri Muhtadin Munira Amudy Muslim, Abrar Nanda Saleysia Aziza Nasruddin Abdullah Nazaruddin Abdul Rachman Puput Heri Syahputra Putra, Rachmad Almi Razali Thaib Razali Thaib Razali Thaib Razali Thaib Rizal, Samsul Rizal, Teuku Azuar Safrizal Rahman Salamul Fajar Samsul Rizal Samsul Rizal Sarwo Edhy Sofyan Sukuria Mungkur, Rahmat Syahri, Alfi Syukur, Muhammad Taufiq Taufiq Teuku Azuar Rizal Teuku Juliadi Teuku Zubir Ully Muzakir Widodo, Syamsul Bahri Yossi Oktarini