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All Journal Saintara : Jurnal Ilmiah Ilmu-Ilmu Maritim Jurnal Maritim Polimarin Ocean Engineering: Jurnal Ilmu Teknik dan Teknologi Maritim Karunia: Jurnal Hasil Pengabdian Masyarakat Indonesia
Oscar, Yulius
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Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Physics Social Sciences Transportation

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Pendampingan Penyuluhan Metode Kolam Bioflok Kelompok Budidaya Ikan Karya Maju Ungaran Ngatmin, Ngatmin; Oscar, Yulius; Santoso, Gunawan Budi; Suyono, Suyono; Harsono, Prijo
Karunia: Jurnal Hasil Pengabdian Masyarakat Indonesia Vol. 2 No. 4 (2023): Desember : Jurnal Hasil Pengabdian Masyarakat Indonesia
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/karunia.v2i4.1929

Abstract

The Community Service was carried out in Beji Village, East Ungaran District, which consisted of 13 RW 51 densely populated RT. Most of participant work in the private and government sectors. Some of entrepreneurs are held fish farming which are managed by the community as an additional necessity for life. To sum up, the implementation of Community Service in Beji village, sub-district East Ungaran can be concluded as follows: Community service activities in Beji Village, East Ungaran District, Semarang Regency run well so that participants gained knowledge which can be implemented. Participants were given an explanation on how to make good Biofloc pond fish food and providing tarpaulins to partners as a form of concern for developing biofloc ponds.
Penerapan Model Simulasi Kemudi Kapal untuk Mata Kuliah Elektronika Suharso, Arif Rakhman; Hendartono, Ario; Oscar, Yulius; Nuriyanis, Akhmad; Dilyanto, Prijantono
Saintara: Jurnal Ilmiah Ilmu-Ilmu Maritim Vol 9 No 1 (2025): SAINTARA (Maret 2025)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Akademi Maritim Nusantara Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52475/saintara.v9i1.363

Abstract

One of the implementations of project-based learning for electronics courses at the Indonesian State Maritime Polytechnic campus is carried out by making ship steering equipment based on one of the learning outcomes in electronics courses for the Engineering department, namely mastering the basics of electricity, electronics, hydraulics, and pneumatics related to ship control systems. Learning with this method can be applied online and offline, where the government’s budget efficiency is to reduce equipment and maintenance spending. Proteus software, which is open-source software that can be downloaded for free, is used to reduce the cost of purchasing electronic components. In addition, cadets do not need to buy components to minimize the cost of purchasing electronic components. Learning begins with the theory of ship steering simulation by demonstrating ship steering consisting of potentiometer components, Arduino, and connected to a computer via USB serial to view the data on the computer, followed by students practicing doing the project by starting by downloading and installing Proteus software, downloading and installing Arduino IDE software then continuing to create a potentiometer circuit, Arduino and serial monitor using Proteus software. In doing this project, students must learn independently by looking for guides and literature that can be searched on the internet or YouTube. This ship steering simulation model or prop is the result of DAPTV research, which explains ship steering simulation to students in the Engineering department in electronics courses at a low cost.
Optimalisasi Produksi Air Tawar: Identifikasi dan Efisiensi pada Reverse Osmosis Plant di MV Golden Splendor Iqbal Alansyah, Fardian; Oscar, Yulius; Noviarianto, Noviarianto; Nuriyanis, Akhmad
Jurnal Maritim Polimarin Vol. 11 No. 1 (2025)
Publisher : PPPM Polimarin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52492/jmp.v11i1.132

Abstract

The Reverse Osmosis Plant (RO) is a critical system for supplying freshwater on board ships to meet accommodation and operational needs. This study aims to identify the causes of reduced freshwater production in the RO Plant aboard the MT. Golden Splendor and to propose optimization strategies. A qualitative approach was employed through direct observation, interviews with engineering officers, and analysis of logbook data collected during a 12-month sea training period. The findings indicate that the main causes of inefficiency include clogged filters and membranes, leakage in the ejector pump, and inadequate routine maintenance. These issues led to a decline in freshwater production from 1000 liters/hour to 700 liters/hour. After corrective measures such as filter replacement, membrane cleaning, and pump repairs were implemented, production increased back to 1000 liters/hour. The results highlight the importance of scheduled maintenance and system monitoring to ensure optimal RO performance. The study recommends strict adherence to maintenance procedures and enhanced system supervision to improve efficiency and ensure the sustainability of freshwater production on board.
Analisa Kegagalan Ring Piston Mesin Diesel Type YMD MAN B&W(5S35MC-C9-2) di KM. Spil Hasya Ngatmin, Ngatmin; Oscar, Yulius; Santoso, Gunawan Budi; Juwarlan, Juwarlan; Khaeroman, Khaeroman
Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim Vol. 2 No. 4 (2023): Desember : Jurnal Ilmu Teknik dan Teknologi Maritim
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/ocean.v2i4.1903

Abstract

The research method used was a qualitative experiment, starting with taking broken piston rings No. 2 and 3, cutting the piston rings and testing them with hardness tests and composition tests carried out at the Indonesian State Maritime Polytechnic and Undip Central Java Integrated Lab. From the results of this research, it can be concluded that the used broken ring number 3 has the highest hardness of 140.26 HB and the used ring number 2 is 131.50 HB, so it can be concluded that the piston ring that has been used and exposed to high heat causes an increase in hardness and causes it to break. The composition test results showed that the carbon content of the new ring no. 2 was the highest at 15.30% and that in the used ring no. 2 was 12.08% because the compression ring was in direct contact with the compression chamber or in contact with heat. For the used number 3 piston ring, the carbon content is 10.43 and the new one is 11.02 because it is positioned below the compression ring and is not in direct contact with heat. for the used ring no.2, the Silicon (Si) content is low, namely 2.15% compared to the new one, 2.75% because the nature of Silicium is that it is resistant to high temperatures and as a compression ring compared to ring no.3, fracture occurs because there are no Manganese or Phosphate elements. which is wear resistant, strong and elastic. The microstructure of piston ring No. 2 is broken and the new two piston rings are less dense and have rough gaps. The broken piston ring structure of No. 3 and the new one looks a bit gray and has high levels of graphite iron and carbon elements.
Co-Authors Akhmad Nuriyanis Arif Rakhman Suharso Ario Hendartono Dilyanto, Prijantono Gunawan Budi Santoso Harsono, Prijo Iqbal Alansyah, Fardian Juwarlan, Juwarlan Khaeroman, Khaeroman Ngatmin, Ngatmin Noviarianto, Noviarianto Suyono Suyono