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All Journal International Journal of Marine Engineering Innovation and Research Impression : Jurnal Teknologi dan Informasi
Azis Nugroho
Politeknik Pelayaran Surabaya
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

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Analysis of Causes of Starting Failure on Auxiliary Engine MT Green Stars with HAZOP Method Ardiansyah Nur Rahman; Shofa Dai Robbi; Akhmad Kasan Gupron; Azis Nugroho; Nasri; Rama Syahputra Simatupang; Imam Sutrisno
International Journal of Marine Engineering Innovation and Research Vol. 10 No. 2 (2025)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i2.6431

Abstract

Air motor starter is a component that functions to rotate the engine auxiliary flywheel to move the piston for the first combustion to occur. In this system, high-pressure air from a compressor or air tank is used to drive a starter motor that is directly connected to the engine crankshaft. As the starter motor operates, pressurized air is channeled into the starter motor cylinders, creating a rotational movement on the shaft that eventually rotates the auxiliary engine crankshaft. Air motor starters on MT Green Stars are essential for the auxiliary engine starting system on board MT Green Stars. This study aims to analyze the factors that cause the failure of auxiliary engine start failure caused by the rupture of the starter motor water bearing and the impact on the auxiliary engine. This research uses a descriptive analysis method using HAZOP data analysis techniques and data collection from observations, logbooks, journals, manual books, and interviews The research was conducted on the MT Green Stars ship which has three auxiliary engines and is experiencing problems with the starting system. Based on the research, failure factors in auxiliary engines are caused by several factors, namely starter motor water, injectors, starter motor water, and fuel filters. The impact of auxiliary engine start failure causes failure of the electrical system, system, pump, hydraulic and pneumatic system disorders, work efficiency disorders, risk of damage to the main engine, and safety and regulatory disorders. To handle it, maintenance needs to be carried out, both preventive maintenance and breakdown maintenance. The suggestions that researchers make are to routinely carry out maintenance according to PMS (Planned Maintenance System), carry out toolbox meetings, check especially auxiliary engines.
Overflow Analysis on the FO Purifier of KM Tanto Sukses Vessel Bagas Sadewo; Agus Prawoto; Trisnowati Rahayu; Azis Nugroho; Nasri; Rama Syahputra; Imam Sutrisno
International Journal of Marine Engineering Innovation and Research Vol. 10 No. 2 (2025)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i2.6439

Abstract

This research aims to analyze the factors that cause overflow in the fuel oil purifier system and to identify measures that can be taken to address this issue using the Failure Mode and Effect Analysis (FMEA) method. Overflow in the fuel oil purifier can disrupt the fuel purification process, which is crucial for engine performance. Therefore, understanding the causes and appropriate solutions is essential. The analysis results indicate that the factors causing overflow include leakage or wear of vital components such as O-rings, gravity discs, belts, bowls, main seal rings, ball bearings, nozzles, and pilot valves, as well as improper installation of components or blockages due to debris obstructing the flow. Overflow can be managed through regular inspections of components prone to wear or damage, routine cleaning of components that are susceptible to clogging, and continuous monitoring and calibration of the system to ensure the purifier operates optimally. By implementing these measures, the fuel oil purifier system is expected to function efficiently, reduce the risk of overflow, and enhance the reliability of the fuel purification process.
Analisis Penyebab Ketidaksempurnaan Proses Pengabutan Pada Injector Mesin Induk Type Zichai-Yanmar 6N330-EW Di Kapal MV Spil Rumi Ach. Harbul Fijar; Saiful Irfan; Sri Mulyanto Herlambang; Azis Nugroho; Monika Retno Gunarti
Impression : Jurnal Teknologi dan Informasi Vol. 4 No. 2 (2025): July 2025
Publisher : Lembaga Riset Ilmiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59086/jti.v4i2.940

Abstract

Proses pengabutan bahan bakar pada Injector mesin induk kapal sangat menentukan efisiensi pembakaran. Ketidaksempurnaan proses ini dapat disebabkan oleh tekanan bahan bakar rendah, penyumbatan nozzle, atau kualitas bahan bakar buruk. Penelitian ini dilakukan di kapal MV. SPIL RUMI untuk menganalisis penyebab dan solusi dari ketidaksempurnaan tersebut. Penelitian ini menggunakan pendekatan kualitatif dengan metode observasi langsung, wawancara, dan dokumentasi selama praktik laut di MV. SPIL RUMI. Teknik analisis menggunakan diagram fishbone untuk menemukan penyebab utama permasalahan pengabutan bahan bakar, dengan mempertimbangkan faktor manusia, material, metode, dan mesin secara sistematis dan mendalam. Ditemukan bahwa ketidaksempurnaan pengabutan disebabkan oleh tekanan bahan bakar rendah, penyumbatan nozzle, filter kotor, kualitas bahan bakar buruk, serta purifier yang tidak optimal. Setelah dilakukan perbaikan dan pengujian tekanan, performa Injector kembali normal. Perawatan rutin dan prosedur sesuai manual book menjadi solusi utama untuk mencegah kerusakan serupa. Ketidaksempurnaan pengabutan terjadi akibat tekanan tidak maksimal, penyumbatan nozzle, kualitas bahan bakar rendah, dan filter atau purifier yang tidak terawat. Pencegahan dilakukan melalui perawatan Injector, pengecekan tekanan, penggunaan bahan bakar standar, serta perawatan sistem filtrasi. Perawatan berkala menjamin pembakaran sempurna dan efisiensi mesin yang optimal.   The fuel fogging process in the main ship engine injector greatly determines the combustion efficiency. This process imperfection can be caused by low fuel pressure, nozzle blockage, or poor fuel quality. This research was conducted on the MV. SPIL RUMI to analyze the causes and solutions of such imperfections. This study uses a qualitative approach with direct observation, interviews, and documentation methods during marine practice at MV. SPIL RUMI. The analysis technique uses fishbone diagrams to find the main causes of fuel fogging problems, taking into account human, material, method, and machine factors systematically and deeply. It was found that fogging imperfections were caused by low fuel pressure, nozzle clogging, dirty filters, poor fuel quality, and suboptimal purifiers. After repairs and pressure tests, the Injector's performance returned to normal. Regular maintenance and manual procedures are the main solution to prevent similar damage. Fogging imperfections occur due to suboptimal pressure, nozzle blockage, low fuel quality, and unmaintained filters or purifiers. Prevention is carried out through injector treatment, pressure checking, standard fuel use, and filtration system maintenance. Periodic maintenance guarantees perfect combustion and optimum engine efficiency  
Analisis Kerusakan Piston Pada Kompresor Udara Type Hatlapa Hamworthy V-Line 150 Di Kapal MT. Prima Lautan II Moh. Ainul Yakin; Moejiono Moejiono; Kuntoro Bayu Ajie; Antonius Edy Kristiyono; Shofa Dai Robby; Azis Nugroho
Impression : Jurnal Teknologi dan Informasi Vol. 4 No. 2 (2025): July 2025
Publisher : Lembaga Riset Ilmiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59086/jti.v4i2.963

Abstract

Kompresor udara merupakan mesin bantu yang sangat penting dalam sistem permesinan kapal, khususnya dalam proses starting main engine yang membutuhkan tekanan udara tinggi. Penelitian ini bertujuan untuk menganalisis penyebab kerusakan piston pada kompresor udara type Hatlapa Hamworthy V-Line 150 dan dampak yang ditimbulkan terhadap operasional kapal. Metode penelitian yang digunakan adalah kualitatif, dengan teknik pengumpulan data melalui observasi langsung di atas kapal MT. Prima Lautan II, wawancara dengan perwira mesin (KKM, Masinis 2, dan Masinis 3), serta dokumentasi lapangan. Hasil penelitian menunjukkan bahwa penyebab utama kerusakan piston adalah tersumbatnya intercooler akibat korosi dan kotoran, kualitas pelumas yang menurun karena melebihi jam kerja (running hours), serta pemakaian material piston yang telah melewati batas jam kerja yang ditentukan. Dampak dari kerusakan ini adalah terganggunya sistem udara, kegagalan start main engine, dan menurunnya efisiensi operasional kapal. Analisis dilakukan menggunakan metode fishbone untuk mengidentifikasi akar permasalahan. Hasil penelitian ini menekankan pentingnya pemeliharaan rutin, penggantian suku cadang sesuai manual book, dan peningkatan kesadaran kru kapal terhadap pentingnya perawatan sistem udara.   The air compressor is a very important auxiliary engine in the ship's engine system, especially in the process of starting the main engine which requires high air pressure. This study aims to analyze the cause of piston damage in the Hatlapa Hamworthy V-Line 150 type air compressor and the impact it has on ship operations. The research method used is qualitative, with data collection techniques through direct observation on board the MT ship. Prima Lautan II, interviews with mechanical officers (KKM, Machinist 2, and Machinis 3), as well as field documentation. The results of the study show that the main cause of piston damage is intercooler clogging due to corrosion and dirt, decreased lubricant quality due to exceeding running hours, and the use of piston materials that have exceeded the specified working hour limit. The impact of this damage is the disruption of the air system, the failure of the main engine start, and the decline in the ship's operational efficiency. The analysis was carried out using the fishbone method to identify the root of the problem. The results of this study emphasized the importance of routine maintenance, replacement of spare parts according to the manual, and increased awareness of the ship's crew on the importance of air system maintenance.  
Analisis Kinerja Pembakaran Nozzle Burner Pada Auxiliary Boiler Di Mv. Pan Kristine Muhammad Akmal Dwisaputra; Rama Syahputra Simatupang; Wulan Marlia Sandi; Azis Nugroho; Shofa Dai Robbi
Impression : Jurnal Teknologi dan Informasi Vol. 4 No. 2 (2025): July 2025
Publisher : Lembaga Riset Ilmiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59086/jti.v4i2.970

Abstract

Penelitian ini bertujuan untuk menganalisis faktor penyebab dan dampak dari tersumbatnya nozzle burner pada auxiliary steam boiler di kapal MV. Pan Kristine. Permasalahan yang muncul berupa penurunan tekanan uap dan flame failure saat kapal berlabuh, yang diduga disebabkan oleh gangguan pada sistem pembakaran. Data dikumpulkan melalui observasi langsung, wawancara dengan kru mesin, dokumentasi, serta studi pustaka. Hasil penelitian menunjukkan bahwa penyumbatan nozzle burner disebabkan oleh kurangnya perawatan rutin sesuai Planned Maintenance System (PMS), sistem filtrasi bahan bakar yang tidak efisien, nozzle yang aus atau rusak, serta jarak elektroda yang tidak sesuai dengan manual book. Dampak dari kondisi ini meliputi penurunan efisiensi pembakaran, peningkatan akumulasi jelaga dan kerak di ruang bakar, serta gangguan operasi boiler secara keseluruhan. Penelitian ini merekomendasikan penerapan PMS yang ketat, pemeriksaan berkala pada filter dan nozzle, serta pelatihan kru untuk meningkatkan pemahaman terhadap sistem pembakaran guna menjamin keandalan dan efisiensi kerja auxiliary boiler.   This study aims to analyze the causes and impacts of nozzle burner clogging in the auxiliary steam boiler aboard the MV. Pan Kristine. The issue arose from steam pressure drops and repeated flame failures while the ship was anchored, suspected to result from malfunction in the combustion system. Data were collected through direct observation, interviews with engine crew, documentation, and literature study. The findings reveal that the clogging of the nozzle burner is caused by insufficient routine maintenance according to the Planned Maintenance System (PMS), inefficient fuel filtration, worn or damaged nozzles, and electrode spacing that does not comply with the instruction manual. These issues lead to reduced combustion efficiency, increased soot and scale accumulation in the combustion chamber, and overall operational disruption of the boiler. The study recommends implementing a strict PMS, regular inspection of fuel filters and nozzles, and improved crew training to ensure the reliability and efficiency of the auxiliary boiler system.  
Evaluation of Boiler Maintenance Using The Failure Mode and Effect Analysis Approach at KM. Tilongkabila Qurrotul Laili; Azis Nugroho; Shofa Dai Robbi; Antonius Edy Kristiyono; Intan Sianturi; IMAM SUTRISNO
International Journal of Marine Engineering Innovation and Research Vol. 11 No. 1 (2026)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v11i1

Abstract

Boilers experience frequent problems, such as scale formation, unstable steam pressure, incomplete combustion, and difficulty starting. Therefore, this study uses a quantitative method with the Failure Mode and Effect Analysis (FMEA) approach, which aims to determine maintenance and prevention to minimize these problems. This method determines the failure priority obtained from the Risk Priority Number (RPN) calculation based on assessment factors such as severity, frequency of occurrence, and the likelihood of failure being detected in each component. The results of these calculations indicate that the steam drum component falls into the highest category, with an RPN of 32. The other 12 components fall into the medium category: the feed water pump, electrode, photocell, nozzle, blower fan, solenoid valve, fuel pump, blowdown valve, main steam valve, scum valve, non-return valve, and gauge glass, with RPN values ranging from 12 to 24. Furthermore, the components in lowest category include the fuel filter, safety valve, and manometer, with RPN values ranging from 8 to 10. Therefore, the recommended improvements based on the FMEA results can be used as evaluation material to ensure the effectiveness of the improvements. Furthermore, regular boiler maintenance and monitoring are required, especially for components such as the steam drum, which requires additional routine maintenance schedules, repeated evaluations related to water treatment, and determining appropriate repairs for any steam drum failures.
Co-Authors Ach. Harbul Fijar Agus Prawoto Akhmad Kasan Gupron Antonius Edy Kristiyono Ardiansyah Nur Rahman Bagas Sadewo Imam Sutrisno Imam Sutrisno Kuntoro Bayu Ajie Moejiono Moejiono Moh. Ainul Yakin Monika Retno Gunarti Muhammad Akmal Dwisaputra Nasri Qurrotul Laili Rama Syahputra Rama Syahputra Simatupang Saiful Irfan Shofa Dai Robbi Shofa Dai Robby Sianturi, Intan Sri Mulyanto Herlambang Trisnowati Rahayu Wulan Marlia Sandi