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All Journal FLYWHEEL : Jurnal Teknik Mesin Untirta POROS TEKNIK INTEKNA Jurnal Elemen Jurnal IMPACT: Implementation and Action Majamecha Scientific Journal of Mechanical Engineering Kinematika JTAM ROTARY Civitas Ministerium: Jurnal Pengabdian Kepada Masyarakat Accurate: Journal of Mechanical Engineering and Science Journal of Mechanical Engineering Automotive Experiences Jurnal Teknik Mesin, Industri, Elektro dan Informatika Jurnal Penelitian Rumpun Ilmu Teknik AutoMech : Jurnal Teknik Mesin Jurnal Foundry Jurnal Inovasi Global Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informatika Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Sigit Mujiarto
Jurusan Teknik Mesin, Fakultas Teknik, Universitas Tidar
Aerospace Engineering Humanities Astronomy Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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Karakteristik Gas Buang Dual Fuel Gasifier Downdraft Serbuk Kayu Dan Diesel Engine Generator Set 3 Kw Sigit Mujiarto; Suliono Suliono; Imam Maolana; Murdjani Murdjani
INTEKNA informasi teknik dan niaga Vol 17 No 2 (2017): Jurnal INTEKNA, Volume 17, No. 2, November 2017: 79-147
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/intekna.v17i2.477

Abstract

Gas buang pada kendaraan berbahan bakar fosil yang tidak ramah lingkungan akan berdampak buruk terhadap lingkungannya. Pengembangan gas biomassa juga bisa dipakai untuk bahan bakar alternatif pada motor pembakaran dalam. Syngas hasil gasifikasi yang kandungan CO2, CO, NOx lebih rendah membantu mengurangi emisi gas buang. Pada reaktor gasifikasi untuk menghasilkan gas yang mudah terbakar didapatkan air fuel ratio 1,01; 1,13; 1,34; 1,52. Artinya campuran antara serbuk kayu dan udara dapat menghasilkan gas sebagai campuran bahan bakar pada mesin diesel. Penelitian ini bertujuan untuk mengetahui perbedaan kandungan gas buang pada single dan dual fuel. Dengan putaran pada mesin konstan yaitu 1500 rpm dengan pembebanan pada generator set mulai 200 watt sampai 2400 watt dengan interval 200 watt. Setelah dilakukan eksperimen, temperatur gas buang dengan adanya penambahan syngas akan semakin semakin naik hingga 249áµ’C. Untuk emisi gasi buang dengan penambahan syngas, karbon monoksida (CO) turun sampai 0,71%. Nitrogen okside (NOx) juga mengalami penurunan seiring panambahan syngas sebesar 100 ppm. Serta hidro karbon (HC) seiring penambahan syngas pada emisi gas buang turun hingga 64 ppm
Comparative Study of Municipal Solid Waste Fuel and Refuse Derived Fuel in the Gasification Process Using Multi Stage Downdraft Gasifier Sigit Mujiarto; Bambang Sudarmanta; Hamzah Fansuri; Arif Rahman Saleh
Automotive Experiences Vol 4 No 2 (2021)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (581.788 KB) | DOI: 10.31603/ae.4625

Abstract

Municipal solid waste (MSW) is a type of general waste that includes households, traditional markets, commercial areas, and the rest from public facilities, schools, offices, roads, and so on. Refuse Derived Fuel (RDF) is obtained from the remnants of MSW which cannot be used anymore, which is flammable waste and is separated from parts that are difficult to burn through the process of chopping, sifting, and air classification. RDF has potential as an alternative energy source. In this study, RDF fuel was compared with MSW fuel both by proximate and calorific value, then the gasification process was carried out using a multi-stage downdraft gasifier to see gasification performance indicators such as syngas composition, LHV, cold gas efficiency, and tar concentration. The results showed that the gasification performance indicator for MSW biomass resulted in the syngas composition of CO = 19.08% v, H2 = 10.89% v, and CH4 = 1.54% v. The calorific value (Low Heating Value, LHV ) of syngas is 4,137 kJ/kg, cold gas efficiency is 70.14%, and tar content is 57.29 mg/Nm3. Meanwhile, RDF obtained the composition of CO gas: 18.68% v, H2: 9.5446% v, and CH4: 0% v. The maximum LHV syngas is 3365.08 kJ/kg, cold gas efficiency is 57.19 % and the smallest tar content is 80.24 mg/Nm3. When compared to RDF, MSW produces a better gasification performance indicator. However, RDF can still be used as an alternative energy source using the gasification process. The results of this study can be used to optimize the further RDF gasification process.
Pelatihan Desain Grafis untuk Pemberdayaan Pemuda Karang Taruna Desa Karyabaru Kecamatan Barambai Kabupaten Barito Kuala Provinsi Kalimantan Selatan Abdul Rozaq; Raden Kelik Hardinto; Riswan Yunida; Sigit Mujiarto; Muhammad Firdaus Jauhari
Jurnal IMPACT: Implementation and Action Vol. 2 No. 1 (2019)
Publisher : Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/impact.v2i1.742

Abstract

Kegiatan pelatihan ini adalah sebagai penunjang bagi pemuda karang taruna desa Karyabaru kecamatan barambai kabupaten Barito Kuala dalam memahami lebih jauh lagi mengenai pelatihan Komputer, serta memperkenalkan metode “learn and fun” pada pelatihan tersebut. Sedangkan tujuan dari kegiatan ini adalah Melaksanakan Tri Dharma Perguruan Tinggi berupa Pengabdian Kepada Masyarakat. Kemampuan dalam menyampaikan ide dan gagasan dalam upaya untuk membangun desa memerlukan dukungan teknologi informasi dan komunikasi yang dituangkan dalam bentuk spanduk, poster, undangan. Ini semua dapat dilakukan, jika kita dapat menguasai atau memiliki kemampuan design grafis yang baik. Pada kesempatan kali ini akan dilakukan transfer pengetahuan berupa penguasaan ketrampilan design grafis menggunakan software photoshop dan corel draw.Dilakukan survey pendahuluan untuk melihat situasi kerja di lingkungan kelurahan/ aparatur desa dalam melakukan tugas dan fungsi (Tupoksi) serta kondisi masyarakat. Mengajak aparatur desa untuk menggerakkan masyarakat melalui organisasi yang ada di daerah atau desa/kelurahan Karya Baru. Mengkoordinir peserta yang berminat terhadap pelatihan-pelatihan yang sudah disiapkan oleh tim. Peserta mampu melaksanakan pelatihan design grafis dengan hasil yang dapat diimplementasikan dalam kegiatan keseharian menyangkut desain grafis.
PELATIHAN SABLON PAKAIAN Catur Pramono; Endang Mawarsih; Sigit Mujiarto
Civitas Ministerium Vol 2, No 01 (2018): Civitas Ministerium
Publisher : Civitas Ministerium

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Usaha sablon pakaian merupakan peluang bisnis sampingan yang modalnya ringan namun untungnya bisa menjanjikan. Bisnis sablon manual maupun digital untuk kaos dan baju ini sangat cocok untuk semua kalangan yang ingin memulai usaha dirumah maupun di tempat lain. Bisnis ini cukup menjanjikan karena bisnis sablon bisa dibilang sangat mudah untuk dikerjakan dan tidak memerlukan modal cukup besar. Hal yang menarik adalah bisnis ini bisa dijalankan dengan resiko yang cukup kecil dengan cara memulai bisnis percetakan sablon kaos ini setelah ada pembayaran atau istilahnya pre order jadi indent sistem. Hal ini jelas akan menghilangkan faktor resiko biaya produksi yang sia sia. Oleh karena itu, sudah selayaknya pelatihan sablon pakaian di berikan untuk kalangan pemuda sehingga mampu memberikan bekal keterampilan di masa mendatang. Hasil pengabdian ini yaitu masyarakat mampu mempraktikkan sablon secara secara langsung pada saat pelatihan. Hal ini berpengaruh terhadap peningkatan pengetahuan tentang sablon, jenis-jenis sablon dan teknik menyablon.
STUDI EKSPERIMENTAL ALIRAN BAHAN BAKAR SOLAR PADA BERBAGAI KERUGIAN Kun Suharno; Galih Sigit Setiadi; Sigit Mujiarto; Arif Rahman Saleh
Journal of Mechanical Engineering Vol 3, No 2 (2019): Journal of Mechanical Engineering
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jom.v3i2.3371

Abstract

Perancangan SPBU haruslah memenuhi sistem perpipaan yang baik untuk menyalurkan minyak dari dalam penyimpanan di bawah tanah menuju dispenser hingga ke nozzle atau fuel gun. Terdapat beberapa dinamika permasalahan dalam proses transportasi fluida pada sistem pipa penyalur dari tangki pendam SPBU sampai ke konsumen, diantaranya adalah terjadinya kehilangan tekanan. Dari permasalahan tersebut, penulis meneliti tentang perilaku aliran bahan bakar solar yang melewati berbagai kerugian. Hasil penelitian ini adalah Aliran solar dengan pembukaan stop kran 45° yang melewati gesekan pada pipa PVC memiliki kecepatan (v) = 1,462 m/s , nilai kerugian (hf) = 0,047, debit (Q) = 0,000586 m³/s. Aliran solar yang melewati belokan/elbow 90° memiliki kecepatan (v) = 1,422 m/s, nilai kerugian (hb) = 0,103, debit (Q) = 0,000570 m³/s. Aliran solar yang melewati pengecilan penampang pipa diameter ¾ inch ke ½ inch memiliki kecepatan (v) = 1,442 m/s, nilai kerugian (hc) =0,0382 , debit (Q) = 0,000439 m³/s , Aliran solar yang melewati pembesaran penampang pada diameter ½ inch ke ¾ inch memiliki kecepatan (v) = 1,450 m/s , nilai kerugian(he) = 0,0112 , debit (Q) = 0,000655 m³/s.
PENGARUH DAUN JAMBU BIJI SEBAGAI INHIBITOR KOROSI ALAMI RANTAI KAPAL Nani Mulyaningsih; Sigit Mujiarto; Gyani Ubaydillah
Journal of Mechanical Engineering Vol 3, No 1 (2019): Journal of Mechanical Engineering
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jom.v3i1.1523

Abstract

Corrosion is the interaction of metals with their environment which results in damage to metals. Corrosion can also occur in the chain of vessels that are usually located on the side of the ship's hull and are directly exposed to sea water. If it is not properly observed, the condition will damage and reduce the life of the ship chain. It is necessary to add inhibitors as substances to inhibit the corrosion rate. Inhibitors that are generally used are inhibitors that have toxic properties to the environment, therefore it is necessary to use organic inhibitors that do not damage the environment. The purpose of this study was to determine the effect of inhibitors of guava leaf extract on the corrosion rate of ship chains. This research was conducted by immersing specimens with concentrations of 6%, 9%, 12%, and  immersion time of 1 hour. Corrosion rate is calculated using the dynamic potentiary polarization method. After calculating the corrosion rate, the inhibitor efficiency is calculated. After immersion is obtained, the inhibitor has an influence. This was shown after the corrosion test found that at a concentration of 9% inhibitors of guava leaf extract was able to reduce the corrosion rate of 0.066 mpy and has the highest efficiency value of 97.3%.
PEMANFAATAN TEH SEBAGAI BIOINHIBITOR KOROSI PEGAS DAUN Nani Mulyaningsih; Sigit Mujiarto; Gyani Ubaydillah
Journal of Mechanical Engineering Vol 2, No 2 (2018): Journal of Mechanical Engineering
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jom.v2i2.1436

Abstract

Leaf springs, especially in cars, are one of the metal components that must get attention because their location under the vehicle causes susceptibility to corrosion due to environmental conditions. Corrosion is an absolute phenomenon that occurs in metals, but corrosion can be controlled by speed with certain techniques. One of them is the use of environmentally friendly corrosion inhibitors (bioinhibitors). Tea is known to have high antioxidant compounds, but its use is only limited as a drink ingredient. Starting from these problems, a study was conducted on the use of tea as a bioinhibitor in leaf pegs. This study use variations in inhibitor concentration (15%, 20%, 25%). To determine the corrosion rate a corrosion test was carried out. The test results showed that tea proved to be able to reduce the highest corrosion rate at concentration  25% in the amount of .37%. Corrosion rate before being given an inhibitor of 3.8195 mm / y and after being given inibitor decreased to 3.4614 mm / y.
ANALISIS DEBIT AIR DENGAN VARIASI BENTUK OPEN CHANNEL DENGAN PENAMPANG SEGITIGA, PERSEGI, DAN TRAPESIUM PADA SUATU ALIRAN Kun Suharno; Catur Pramono; Sigit Mujiarto; Kurniawan Setyo Anggoro
Journal of Mechanical Engineering Vol 3, No 1 (2019): Journal of Mechanical Engineering
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jom.v3i1.1449

Abstract

An open channel is a channel where water flows with free water. In open channels, such as rivers (natural channels), channel parameters are very irregular. Damming the channel is a transition that serves to determine the height of the water surface along the channel, on this issue the author examines how water flows when through open channel with v-notch, rectangular and trapezoidal shapes in a stream. Based on the test results on 35° valve angle variations, the increase debit from the v-notch debit leads to a rectangular-notch debit of 23.63% and the largest decrease in debit from the rectangular notch to trapezodial-notch is 48.38%. In the valve angle variation 40°, the largest increase in debit between the v-notch discharge towards a rectangular-notch discharge of 18.64% and the decrease in the largest debit from  rectangular-notch to trapezodial-notch at 45.31%. In the valve angle variation 45° the largest increase debit between the v-notch debit towards a rectangular-notch debit is 18.64% and the largest decrease debit from the rectangular notch to trapezodial-notch debit is 46.15%.
PENGARUH VARIASI JUMLAH SUDU PADA SISTEM PEMBANGKIT LISTRIK TENAGA AIR TERHADAP DAYA YANG DIHASILKAN Sri Widodo; Kun Suharno; Sigit Mujiarto; Nazarudin Rif’at Rasyidi
Journal of Mechanical Engineering Vol 2, No 2 (2018): Journal of Mechanical Engineering
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jom.v2i2.1439

Abstract

Indonesia has the potential of water that can become electricity with a hydroelectric power plant. In addition, the distribution of the PLN network has not reached all regions of Indonesia. From these problems the author made a hydropower generator by comparing the number of blades used with a number of 8, 10, and 12 pieces. This study aims to determine the power that will be generated from the number of blades. Data retrieval is done by calculating the power produced by the turbine with a variation of the test time of 20 minutes by 5x. The working principle of this tool is that the water will rotate the wheel connected to the generator with the help of shafts, bearings, pulleys, and V-belts that produce electrical power in the battery so that the electricity can be directly used. The results obtained that the output power is the largest in the use of a number of 12 pieces of blades namely 0.0687 HP, while the number of blades 8 and 10 pieces produces the amount of output power of 0.0627 HP and 0.0652 HP.
PEMANFAATAN OLI BEKAS HIDROLIK YANG DICAMPUR DENGAN SOLAR TERHADAP EMISI GAS BUANG PADA MESIN DIESEL Bagus Lutfiwijaya; Akhmad Syarief; Sigit Mujiarto
Scientific Journal of Mechanical Engineering Kinematika Vol 3 No 2 (2018): SJME Kinematika Desember 2018
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (852.644 KB) | DOI: 10.20527/sjmekinematika.v3i2.7

Abstract

Used hydraulic oil SAE 10 is a waste activities that are often found in Indonesia, especially in mining and plantantion scale hydraulic large. Waste used oil SAE 10 can be used as a fuel mixture of hydrocarbons is done by mixing the used oil hydraulic SAE 10 with other fuels such as gasoline, kerosene, diesel fuel with the addition of a maximum percentage of less than 50%. this research tries to investigate exhaust emissions on diesel engines with hydraulic mixing used oil into diesel fuel with a mixture of different variations. The machine used is a four-stroke diesel engine with a maximum power of 4.4 kW. Be based testing has been done variations of a mixture of 5% and 10 % is still within the allowed limits.
Co-Authors A.A. Ketut Agung Cahyawan W Abdul Ghofur Abdul Rozaq Abdul Rozaq Ahmad Rifqi Shulkhan Akbar, Alvin Nurfaiz Akhmad Syarief Alfi Ferizqo Munawar Alfiansyah, Irsyad Ali Suhadla Arif Rahman Saleh Arif Rahman Saleh Armansyah, David Ari Bagus Lutfiwijaya Bambang Sudarmanta Bambang Sudarmanta, Bambang Catur Pramono Dewi, Rany Puspita Dzikron Muchlisin Endang Mawarsih Erdianto, Diva Arief Fadlan, Mokhamad Roif Galih Sigit Setiadi Gyani Ubaydillah Hamzah Fansuri Hardinto, Raden Kelik Heri Soedarmanto Heri Soedarmanto, Heri Husen Khalwani Ibnu Maliq, Muhamad Noa Imam Maolana Kun Suharno Kun Suharno Kurniawan Setyo Anggoro Listyanda, R. Faiz Maolana, Imam Maolana, Imam Muhammad Firdaus Jauhari Muhammad Firdaus Jauhari, Muhammad Firdaus Muhammad Kasim Muhammad Kasim Muhammad Zaki Mujiarto, Trisma Jaya Murdjani Murdjani Murdjani, Murdjani Murdjani, Murdjani Nani dkk. Mulyaningsih Nazarudin Rif’at Rasyidi PRIYANTO, JOKO Raden Kelik Hardinto Rahayu, Yunita Rahman Saleh, Arif Raka Mahendra Sulistiyo Rany Puspita Dewi Riswan Yunida Riswan Yunida, Riswan Salim, M. Faiz Setiyawati, Tri Retno Siana, Nezar Azali Sigit Iswahyudi Sigit Joko Purnomo Sri Widodo Suliono Suliono Suliono Suliono Suyitno Suyitno Taufik, Ikhwan Teguh Suprianto Teguh Suprianto Tri Retno Setiyawati Trisma Jaya Saputra Wahid Nur Huda