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Journal : Majalah Ilmiah Bahari Jogja

PEMBILASAN DENGAN MINYAK MENTAH PADA KAPAL Prasetya Sigit Santosa
Majalah Ilmiah Bahari Jogja Vol 13 No 20 (2015): BAHARI Jogja Edisi Februari 2015
Publisher : Sekolah Tinggi Maritim Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (248.684 KB) | DOI: 10.33489/mibj.v13i20.76

Abstract

Pembilasan dengan minyak mentah pada kapal adalah sistim yang menggunakan Crude Oil atau minyak mentah sebagai medium pencuci. Sedangkan keuntungan menggunakan Crude Oil adalah sudah tersedia dikapal dengan cara resirkulasi, efektif untuk menghilangkan sediment dan sisa-sisa minyak yang melekat dalam tanki (good Carrier) dan dibongkar bersama-sama dengan muatan, tidak menimbulkan karat serta tidak ada kemungkinan emulsi air dan minyak jadi mengurangi bahaya pollusi. Semua pekerjaan pembilasan harus sudah selesai sebelum kapal meninggalkan pelabuhan bongkar muatan terakhir.Jika sampai dilaksanakan Crude Oil Washing antara dua pelabuhan bongkar pada tanki-tanki tersebut harus tetap kosong untuk pemeriksaan pada pelabuhan-pelabuhan berikutnya sebelum diisi dengan air balas. Keuntungan lain dari system ini adalah bahwa jumlah cargo yangdibongkar dari kapal jadi bertambah dibandingkan dengan jika tengker tersebut tidakmenggunakan system ini.
PENGELOLAAN LABORATORIUM DI PERGURUAN TINGGI Prasetya Sigit Santosa
Majalah Ilmiah Bahari Jogja Vol 15 No 25 (2017): BAHARI Jogja Edisi Juli 2017
Publisher : Sekolah Tinggi Maritim Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (68.678 KB) | DOI: 10.33489/mibj.v15i25.124

Abstract

Laboratory or workshop management as a process that directs the stepsof each workshop user to always comply with the rules or regulationsapplicable in the workshop. Management in order to realize the common goal ofthe workshop is always in a clean, tidy, maintained and maintained condition.Laboratory management as a strategy to achieve laboratory objectivesthrough planning, organizing, mobilizing, using and monitoring all laboratoryresources to achieve goals optimally. Laboratory resources include: instructors,tenants, facilities and infrastructure. Laboratory is a place of observation,experiment, practice and testing of concept and technology. Each user of theworkshop should know and pay attention to it during the use of the workshopor during the workshop. In order for it can be well conditioned it is necessaryto have a proper and clear workshop management. In order for the condition ofevery tool that is in the workshop is always awake, besides the enactment of aregulation then it should also be held maintenance maintenanceworkshop.Keywords: Laboratory, Workshop
PENGELOLAAN KECELAKAAN PADA KAPAL Prasetya Sigit Santosa
Majalah Ilmiah Bahari Jogja Vol 16 No 1 (2018): Februari
Publisher : Sekolah Tinggi Maritim Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1245.016 KB) | DOI: 10.33489/mibj.v16i1.139

Abstract

When the vessel sails at the sea, it cannot avoid the obstacles for example accidents or other emergency situations. Emergency situation is the situation when the ship is suddenly in an accident and it needs fast, accurate and integrated deterrence actions. Those actions include: preparation, practical management on handling the accident, and the solid organization. The preparation consists of the steps needed to handle a certain situation based on the types of the accidents, the practical management of a certain accident must be applied or followed, and the solid organization must have a clear communication and responsibility lines. There are two types of accident management/emergency procedure, namely: internal/local procedure and general procedure. Internal/local procedure is the guideline for executing in each division/department, in terms that the emergency situation can be handled by related division/department itself without interference from other vessels or port. General procedure is the comprehensive guideline issued by the company and includes the massive level of emergency situation or at least the happened accident will endanger other vessels or terminal at the port, and in terms of handling it needs a lot of people or involving other vessel and the authority of the port
Evaluasi Kualitas Hasil Praktek Las Busur Guna Menunjang Kerja Di Kapal Prasetya Sigit
Majalah Ilmiah Bahari Jogja Vol 17 No 1 (2019): Februari
Publisher : Sekolah Tinggi Maritim Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (352.925 KB) | DOI: 10.33489/mibj.v17i1.195

Abstract

Research on cadets practicing objects is generally done visually, including the results of the practice of cadet welding at the Yogyakarta Maritime Academy, because the method is considered the most practical, but the method has not been able to reveal the quality of the results of the practice, especially related to mechanical properties and metal deposit. In connection with this, this study is to determine the quality of the results of the practice of arc welding, by doing tensile testing and macro testing. This research is a descriptive study with a research population of 40 objects from the practice of cadet arc welding, and a research sample of 50% of the population. Graduation of tensile testing, determined by comparing the tensile stress data. Minimum basic materials and welding materials. While the graduation of the macro test is determined by the presence or absence of defects in the metal deposit. The number of graduations from the two tests is published. In this study cadets can do the welding I connection with the results of fulfilling the graduation test requirement of 12 cadets or (60%), while cadets who can do welding I and T connections with the results of fulfilling the macro test graduation requirements, are as many as I connections 16 pieces (70%), while the T connection is 65%.
Peran Crude Oil Washing System (COW) Pada Kapal Tanker Prasetya Sigit
Majalah Ilmiah Bahari Jogja Vol 18 No 1 (2020): Februari
Publisher : Sekolah Tinggi Maritim Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (436.658 KB) | DOI: 10.33489/mibj.v18i1.232

Abstract

Crude Oil Washing System is a system that uses Crude Oil or crude oil as a washing medium. The cargo tanks are kept clean from the remnants of the crude oil load so that clean replacements can be loaded in the previously rinsed Tank by only making a little rinse first with water so that the effects of Pollution will be very limited. The pipes used which are connected to the loading pipes must be made of steel pipes or the like which have sufficient strength to withstand the required oil pressure, and must also be fixed (fixed) and strengthened properly. The Crude Oil Washing System must be installed permanently and completely separated from the other pipe systems except those connected to the pipe. Also the pipes must be equipped with a relief system to control the pressure in the pipe not to be excessive, the relief pipe system must be connected back to the suction part of the Supply Pump. While the benefits of using Crude Oil are already available on the ship by recirculation, effective for removing sediment and the remnants of oil attached to the tank (good carrier) and disassembled together with the load, do not cause rust and there is no possibility of water and oil emulsions to reduce the danger of pollution. All Crude Oil Washing work must be completed before the ship leaves the final unloading port. If until Crude Oil Washing is carried out between the two unloading ports in the tanks, it must remain empty for inspection at the following ports before being filled with ballast water.