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All Journal TEKNIK Indonesian Journal of Chemistry Jurnal Teknik Mesin Jurnal Teknik Industri Terintegrasi (JUTIN) Jurnal Darma Agung JPM: JURNAL PENGABDIAN MASYARAKAT International Journal of Research in Vocational Studies (IJRVOCAS) Automotive Experiences BEES: Bulletin of Electrical and Electronics Engineering Jurnal Al Ulum: LPPM Universitas Al Washliyah Medan JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Medani : Jurnal Pengabdian Masyarakat Jurnal Sains dan Teknologi ISTP Jurnal Teknik Mesin UDA JURNAL PENELITIAN FISIKAWAN JURNAL ILMIAH TEKNIK SIPIL
Siahaan, Enzo W.B
Jurusan Teknik Mesin, Universitas Darma Agung
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Transportation Other

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Perancangan Mesin Pengayak Pasir Dengan Kapasitas 6,5 m3/jam Dari Bottom Ash Di PLTU Labuhan Angin Enzo W.B Siahaan
Jurnal Darma Agung Vol 26 No 1 (2018): AGUSTUS 2018
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Darma Agung (LPPM_UDA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (792.784 KB) | DOI: 10.46930/ojsuda.v26i1.37

Abstract

Dengan makin berkembangnya ilmu pengetahuan dan teknologi, telah mempengaruhi pola pikir manusia untuk melakukan perubahan-perubahan dalam melakukan proses produksi yang bertujuan untuk mendapatkan efisiensi dalam menekan biaya produksi. Saat ini proses pengayakan pasir yang awalnya dilakukan manual, pada industri telah ditingkatkan dengan menggunakan mesin. Hal ini bertujuan untuk mempermudah dalam pekerjaan, mengurangi biaya produksi karena meminimalisir menggunakan tenaga manusia serta dapat mempercepat dalam menghasilkan pasir ayakan yang sesuai dengan kriteria.Mesin pengayak pasir ini direncanakan untuk memenuhi kebutuhan pasir sebagai media penyimpan panas pada proses pembakaran di dalam boiler untuk meningkatkan efisiensi. Dengan mesin ini dapat dihasilkan pasir dengan ukuran ≤0.5 mmdengan kapasitas pengayakan pasir 6,5 m3/jam. Bagian-bagian utama mesin dimulai dari pemilihan motor penggerak, perencanaan kerangka, puli, poros, sabuk dan bantalan serta metode pemeliharaannya.Mesin ini digerakkan dengan daya 3 HP dan putaran 1425 rpm, diteruskan ke puli penggerak yang berdiameter 3 inchi. Puli penggarak dihubungkan oleh v belt untuk menggerakkan puli yang berdiameter 10 inci. Sehingga putaran diturunkan menjadi 427 rpm. Puli memutar poros dengan diameter 30 mm yang dipasang bantalan eksentrik untuk menggetarkan ayakan pasir.
Pengaruh Tekanan Screw Press Pada Proses Pengepresan Daging Buah Menjadi Crude Palm Oil T Hasballah; Enzo W.B Siahaan
Jurnal Darma Agung Vol 26 No 3 (2018): DESEMBER 2018
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Darma Agung (LPPM_UDA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (850.116 KB)

Abstract

One of the tools used in the pressing system is screw press, which is useful for separating oil from fruit flesh. In this process the fruit enters and is ground by a threaded shaft or worm screw press which carries and suppresses the fruit mass that is put into the press cage. On the other hand there is a hydraulic system in the form of cone-shaped rods at the ends which serve to narrow the entry and exit of fruit masses. This results in the fruit being pressed and pressed so that the oil comes out of the fruit flesh. Due to the large amount of palm oil losses that occur in the pressing process, it can therefore reduce the yield of Crude Palm Oil (CPO) produced. From this explanation it can be concluded that the hydraulic pressure on the screw press unit is very important to note so that the loss of palm oil can be reduced as small as possible where the hydraulic pressure set is equal to 50-60 Bar. As for the maintenance of the equipment, it is necessary to know the amount of pressure that occurs in the press cage, which is caused by the fruit pulp style and the force that occurs in the worm screw press so that a comparison between the hydraulic pressure and the pressure that occurs in the screw press is obtained.
DISAIN DAN PABRIKASI MESIN PLANTING BENIH JAGUNG DENGAN SISTEM CULTIVATOR Enzo W. B Siahaan
JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Vol 2, No 1 (2018)
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ju.v2i1.95

Abstract

The design and manufacture of corn seeding planting machines with this cultivator system is one of the simplest and more productive technological innovations to help the community of entrepreneurs and farmers in completing the work of planting corn seeds in large areas. Maize cultivation can still be developed and become an excellent effort in Dairi Regency to see the area and the land available and supported by the fertile climate and soil as well as the people who like to plant maize. This is also offset by an increase in corn prices of maize commodities. To improve the corn production process, it requires a machine / tool that can plant corn seeds efficiently, a more productive way of working, and greater production capacity. The corn seed planting machine consists of several standard components such as: 1) 4-step gasoline motor, 1: 50 reducer speed, pegs, pulleys, belts / belts, chains, gears and bearings, 2) key components done by machining process that is: cradle frame, driving shaft, blade / blade, screw arm, screw cultivator. The machines / equipment used in the construction process, and the main components are: machine, machine, machine, hand grinding machine, deep thread tap, and welding transformer. From the design and fabrication process to the process start from the process of making the main component and assembling process that is done, hence produce one unit of planting plant of corn seed with cultivator system according to the desired design with result of production capacity test 258 seed / minute.
PEMANFAATAN MESIN PENCACAH SAMPAH ORGANIK PORTABEL UNTUK KEPERLUAN RUMAH TANGGA DI KECAMATAN SIMANINDO KABUPATEN SAMOSIR Hodmiantua Sitanggang; Enzo Wiranta Battra Siahaan
JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Vol 5, No 2 (2021): Vol 5 No. 2 Tahun 2021
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ju.v5i2.632

Abstract

Simanindo District is a tourist destination of Lake Toba which is always crowded by foreign tourists thus increasing the amount of waste generated. Community behavior that is less concerned with environmental hygiene becomes another factor causing waste problems. Due to lack of care of the community then the amount of waste for households is also increasing due to the many uses of food scraps and beverages used by every community. From the observation result in Simanindo District with the population of 20190 people with the amount of waste 13 m3 / day assuming that each household produce household waste 0,25 kg / day, then 492,75 kg / day. Where 80% is organic waste, in 1 week there are 2759,4 kg or about 4.75 tons in 1 month. As a miniature of household organic waste management, with approximately 90 families there is 22.5 kg of waste / day. The impact of garbage accumulation is environmental pollution, unflattering scenery, air pollution, soil, and health problems. The solution of the problem is needed a practical tool and efficient to overcome household waste by realizing a portable organic waste enumerator machine Portable organic waste enumerator machine capable of chopping 6 kg / hour of household organic waste such as plant leaves are then used as compost raw material. The goal is to simplify and minimize the volume so it is practical enough to take to the next processing.
PENGARUH TURBOCHANGER TERHADAP DAYA MOTOR BAKAR PADA MESIN YANMAR MODEL 495-T 4 SILINDER 350 PS Hodmiantua Sitanggang,S.T, M.M; Enzo Wiranta Battra Siahaan,S.T,M.T
JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Vol 5, No 1 (2021): VOL 5 NO 1
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ju.v5i1.533

Abstract

Along with the increasingly rapid development of science and technology, this will encourage every manufacturer or industry to develop its invention technology, for example, in the field of Automotive Technology which is experiencing a fairly rapid development. To get to the above, of course, an additional device is needed, one of which is by using a turbocharger. The turbocharger is a mechanism for supplying air with a density that exceeds the density of atmospheric air into the cylinder to be pressed in the compression stroke so that the motor power will increase. To get the effect of using a turbocharger, it can be done by conducting direct testing of the Yanmar Model 495-T 4 cylinder 350 PS engine with a variable rotation of 1300 rpm, 1700 rpm, 2100 rpm, 2500 rpm, 2900 rpm, and recording changes in the load on the dynamometer, internal temperature. space, radiator water temperature, lubricant pressure, air pressure coming out of the compressor, fuel consumption time per 50 cc. So that the results of the test show that the specific fuel consumption is 106 gr / hp-hr, while for a diesel motorbike without a turbocharger the specific material consumption is 126 gr / hp-hr, therefore the specific fuel consumption of a diesel motorbike using a turbocharger decreases by 15.87%. and the average effective pressure increases at the effective power (Ne) which is 152 hp, while for a diesel motorbike without a Turbocharger the effective power (Ne) produced is 110 hp so that the percentage increase in power obtained is 42%.
PENGARUH DEBIT ALIRAN AIR TERHADAP EFEKTIFITAS RADIATOR PADA MOTOR BAKAR BENSIN 4 LANGKAH DENGAN KAPASITAS SILINDER 1329 CC Enzo W. B. Siahaan
JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Vol 2, No 2 (2018): Vol 2 No 2
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ju.v2i2.117

Abstract

This research was conducted to determine the effect of water flow discharge on the effectiveness of radiators on Daihatsu Xenia Type 1.3 cars. Cooling is a support system for a machine that works and operates. The existence of a cooling system will be felt especially in large-capacity engine engines. And it can be concluded that this analysis only examines the effect of water flow discharge on the effectiveness of the radiator. The problem found in this analysis is the effect of water flow discharge on the effectiveness of the radiator. The purpose of this analysis is to examine the effect of water flow discharge on the effectiveness of radiators. The object of this analysis is a set of radiator tester devices consisting of several components and integrated measuring instruments. This tool is used for data retrieval using the Daihatsu Xenia Type 1.3 16 Valve engine. The analysis design used is experiments, by manipulating a variable to see the effect of the action. The independent variables are the flow rate of water (0.011, 0.016, 0.024, 0.028, 0.033 m3 / min) based on the engine speed (1500, 2000, 2500, 3000, 3500 rpm). The dependent variable is the effectiveness of the radiator. Each study took data three times. Retrieval of data analysis in the first minute shows that the higher water discharge makes the value of radiator effectiveness increase (at a discharge of 0.028 m3 / minute, 2500 rpm) so that in other words the water flow discharge affects the value of radiator effectiveness.
DISAIN DAN PABRIKASI PROTOTIPE PEMBANGKIT LISTRIK TENAGA PIKO HIDRO (PLTPH) KAPASITAS 250 WATT (DC) Enzo W.B Siahaan; Hodmiantua Sitanggang; Robby Robby; Sari Fitri Siagian
JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Vol 6, No 1 (2022): Vol 6 No. 1 Tahun 2022
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ju.v6i1.764

Abstract

The pico-hydro power plant is a power plant with a water source as the driving force for the generator. The use of pico hydro has not been popularized in the community so that its utilization has not been maximized. The use of pico-hydro independently can encourage the acceleration of development of underdeveloped areas, because by utilizing pico-hydro it will create a community with independent power plants. This is an alternative way to produce renewable electricity sources because it does not use fuel. The most important components in the manufacture of this machine are the use of pumps, turbines and generators. The working principle of the Pico Hydro Power Plant (PLTPH) is very simple. That is by utilizing the water discharge per second that is in the flow of rivers, irrigation or waterfalls. The flow will be flowed to drive the turbine and will be continued to drive the generator. The expected capacity of this PLTPH prototype is 250 watts (dc). With a power capacity of 250 watts, it is expected to help the community in finding renewable power sources.
KAJIAN PENGARUH SUDUT PATAH SERPIHAN TERHADAP KEGAGALAN PAHAT PADA PEMOTONGAN BAJA AISI 4340 Enzo Wiranta Battra Siahaan; Hodmiantua Sitanggang; Hery Andi Sitompul; Fiqri Al Huda Fiqri Al Huda
JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Vol 6, No 2 (2022): Vol 6 No. 2 Tahun 2022
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ju.v6i2.926

Abstract

Pada pemotongan logam belum adanya kajian sudut patah seerpihan terhadap kegagalan pahat pada baja AISI 4340  dengan metode faktorial mengunakan pahat karbda tin dari pengukuran kegagalan pahatnya. Tujuan dari penelitian ini untuk mengkaji sudut patah serpihan pada pahat karbida demi mengurangi biaya  produksi yang digunakan pada baja AISI4340 dengan pembubutan laju rendah dan kering dengan memvariasikan kecepatan potong (v), gerak makan (f), dan kedalaman (a). Manfaat dari penelitian ini aadalah untuk mengetahui sudut patah serpihan terbaik dari kegagalan pahat yang terjadi serta mengetahui terbentuknya morfologi geram dari setiap kondisi pemotongan diamati serta diukur terutama pada tebal geram guna untuk perhitungan rasio serpihan (o). Hasil dari penelitian menujukan bahwa morfolgi geram terbentuk tipe infinite helix pita kasar terputus dan dari penelitian ini, kondisi pemotongan (v) = 26m/min, (f)= 0,1mm/min dan (a) = 1mm terjadi keausan pahat terendah dengan (vb) = 1,22mm terletak pada sudut patah serpihan (o) = 42,082o Mekanisme morfolgi geram yang terjadi diakibakan pada rasio bidang geram terhadap sudut patah serpihan.
KAJIAN PERFORMA KERJA TURBIN UAP MITSUBISHI-LTD TIPE 10 HL-11 (STUDI KASUS : PT TOBA PULP LESTARI, TBK) Hot Mian Tua Sitanggang; Enzo Wiranta Battra Siahaan; Freend Eko Hasibuan
Jurnal Darma Agung Vol 30 No 3 (2022): DESEMBER
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Darma Agung (LPPM_UDA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46930/ojsuda.v30i3.2315

Abstract

Turbin uap adalah mesin starter yang mengubah energi potensial uap menjadi energi kinetik, yang selanjutnya mengubah energi kinetik ini menjadi energi mekanik dalam bentuk putaran poros turbin. Uap yang dibutuhkan disuplai oleh dua unit motor boiler, boiler multi-bahan bakar, dan boiler pemulihan. Dalam pengoperasiannya, masing-masing boiler menghasilkan 140 dan 175 ton steam per jam. Dalam boiler, gas panas dihasilkan ketika bahan bakar terbakar dengan air panas udara, dan menghasilkan uap. Tekanan dan temperatur tertentu diarahkan untuk memutar turbin, menghasilkan tenaga mekanik dalam bentuk putaran. Tergantung pada jenis mesin yang digerakkan, turbin uap dapat digunakan di berbagai sektor industri, pembangkit listrik, dan transportasi. Dengan menganalisa perhitungan berdasarkan data lapangan turbin uap dari PT Toba Pulp Lestari, Tbk dengan kapasitas 53,7 MW, daya termal teoritis (isentropis) sebesar 43,9146 MW dan daya termal aktual sebesar 30,07484 MW, maka konsumsi uap spesifik sebesar 266 T/ jam diterima. Efisiensi isentropik turbin sebesar 68,48% dan efisiensi unit turbogenerator sebesar 96,94%.
Performance Test of 1500 cc Fuel Motorcycle Using Pertalite – Bioethanol Mixture Fuel on Exhaust Gas Nelson Manurung; Muhammad Anhar Pulungan; Billy Christian Manurung; Enzo W. B Siahaan; Sihar Siahaan
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 2 No. 4 (2023): IJRVOCAS - Special Issues - International Conference on Science, Technology and
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v2i4.159

Abstract

The increasing world oil prices followed by the increasing demand for fossil fuels as well as the issue of the energy crisis and global warming which demands a better level of environmental quality have encouraged the government to take good policies in overcoming them. Currently the world has been thinking about alternative energy that can be used for diesel or otto motors. One of the alternative fuels developed is alcohol fuel. Alcohol is a type of hydrocarbon in which one of the hydrogen atoms is replaced by the hydroxyl radical OH. Many agricultural products in Indo-nesia have the potential to be developed as bioethanol. In this study, the effect of adding bioethanol on pertalite fuel will be studied. This is because pertalite is a fuel that is in accordance with the demands of automotive needs and developments. This study aims to determine the comparison of power, torque, and air-fuel ratio as well as to determine the comparison of the content of exhaust gas compounds tested on the Toyota Vios Limo 1500CC car using pertalite (E0) fuel, 10% pertalite-bioethanol mixture (E10). and 15% (E15), 20% (E20). The test results obtained that the calorific value of Pertalite fuel is 49411.98 kJ/kg, 10% gasohol has a value of 46764.82 kJ/kg, 15% gasohol has a value of 44262.82 kJ/kg, and then 20% gasohol has a val-ue of 45735.42 kJ/kg. The test results obtained an average torque and power per-formance of 10% gasohol fuel of 109.09 Nm and 71.73 HP. The highest air-fuel ratio in fuel but the table shows the highest air-fuel ratio in 15% gasohol fuel is 15.46 and then the lowest air-fuel ratio in 10% gasohol fuel is 11.58. Exhaust emis-sion levels for each compound tested for each fuel are still below the standard vehicle exhaust emission thresholds set by Toyota and the environmental agency.
Co-Authors A, Arfis Adi Putra Suparwanto Sibarani Ahmad Hafizullah Ritonga Andi Sitompul, Hery Andri Muliadi Anjaka Fernando Purba Antonius Tambunan Anugrah Zai Aritonang, Barita Armandia Sinurat Barimbing, Hendrik Samuel Berlin Padang Billy Christian Manurung Boyke Sahputra Sitorus Budiman Hutajulu Candra Andreas Situmorang Chatarina Umbul Wahyuni Christofel Simanjuntak Dandi Saputra Debataraja, Semangat Marudut Tua Debi Meilani Deby Syahputra Dendi Rivan Girsang Dwiky Valery Fahcrul Razi Ferdyawan Subagyo Ferry Kurniawan Filippus Riantonius S Fiqri Al Huda Fiqri Al Huda Fiqri Al Huda Freend Eko Hasibuan Gugun Patar Simanjuntak Guntur Harianja Gurgur Aldorado Pasaribu Haris Dauri Prasetiawan Hasballah Hasballah Hendro Sefteven Hutahaean Heri Andi Sitompul Himsar Ambarita Hodmiantua Sitanggang Hutabarat, Franata Ilmi Ilmi, Ilmi Irvin Hakkiro Rajagukguk JChevin Leo Nardo Hutagalung Jeremia Kondrat P Tamba Jhon Roni Togatorop Joi Pamber Limbong Khairiah, Khairiah Kristian Tarigan KRISTIAN TARIGAN Kristian Tarigan Manalu, Citra Satria Maria A. Kartawidjaja Martin Paskah Tambunan Masyudi Masyudi Melisa Mulyadi Menda Syahputra Surbakti Muhammad Angga Muhammad Anhar Pulungan Nanda Adi Putra BP Hutasoit Nelson Manurung, Nelson Nur, Taufiq Bin Pardede, Saut P Partogihon Manalu Purba, Rasta Putri, Gusliani Eka Ramadhan, Ibnu Rasta Purba Rasta Purba Richard Estrada Ginting Ridcad Fernando Sihombing Rio Andri Noven Sinaga Rizky Ramadhan Robby Robby Rotama Arifin Sidabutar Roy Frengki Alianda Sinaga Rudi Pranata Rudi Purba Samuel Harianja Sandri C. Hutasoit Sari Fitri Siagian Saut P Pardede Saut Pardede Saut Pardede Sawin Sebayang Sembiring, Ferdinanta Siagian, Romualdus Giantino Sianturi, Riotama Dearmando SIDABUTAR, ROTAMA Sihar Siahaan Simamora, Antonius Simangunsong, Ratjen Simanjuntak, Janter Pangaduan Sinaga, Boris Sinaga, Tomu Sinaga, Yesayanto Ngongira sinurat, daniel Sitanggang, Hodmiantua SItanggang Sitanggang, Lundu Parlindungan Stephan Purba Suhendri Ginting Suram Pratama Pardede Swandi Rikkot Darah Dasip Purba T Hasballah T. Hasballah TARIGAN, KRISTIAN Togar Timoteus Gultom Tri Amandani Siregar Try Wiranto Tinambunan Tulus Burhanuddin Sitorus Tulus Mangembang Pasaribu Yoga Silalahi