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Journal : journal of engineering science and technology management

Analysis of the Decrease in Compressed Air Production of the Air Compressor onboard MT Seroja III Bayhaqi Putra; Nasri; Abdi Seno; Intan Sianturi; Rika Fitriani
Journal of Engineering Science and Technology Management (JES-TM) Vol. 6 No. 2 (2026): June 2026
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v6i2.409

Abstract

The air compressor is an essential auxiliary machinery onboard MT Seroja III, playing a critical role in supporting vessel maneuverability, operational safety, and main engine starting readiness. During operations, a critical reduction in compressed air production was encountered, leading to prolonged air reservoir filling times and potential risks during ship maneuvering. This study aims to identify the root causes of decreased compressed air production in the main air compressor onboard MT Seroja III and to formulate corrective and preventive maintenance actions based on onboard observations and Fault Tree Analysis (FTA). This research employs a qualitative descriptive method, utilizing continuous monitoring parameter logs, field inspections, and semi-structured interviews with engine officers over a 12-month sea service period. The diagnostic findings using FTA indicate that the decrease in volumetric efficiency was primarily caused by high-resistance suction filter blockages, severe carbon fouling on suction and delivery valves, and piston ring degradation. Corrective maintenance involving filter purging, valve refacing, and piston ring replacement successfully restored the compressor discharge pressure to 30 bar and reduced the air receiver filling time from 45 minutes to 15 minutes. The study concludes that strict adherence to the vessel's Planned Maintenance System (PMS) is mandatory to guarantee operational safety and prevent compression loss.
Analysis of the Effectiveness of the Marine Growth Prevention System (MGPS) in Preventing Marine Organism Growth in the Engine Cooling System of MV Ever Clear Brian Pratama Timur; Monika Retno Gunarti; Nasri; Intan Sianturi; Elly Kusumawati
Journal of Engineering Science and Technology Management (JES-TM) Vol. 6 No. 2 (2026): June 2026
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v6i2.414

Abstract

The ship engine cooling system is critical for maintaining the operational stability of main and auxiliary machinery. However, biofouling within sea chests and seawater pipelines remains a prevalent issue, leading to flow obstruction, reduced heat transfer efficiency, and potential engine malfunction. While the Marine Growth Prevention System (MGPS) is designed to mitigate this via electrolysis, marine growth persisted on MV Ever Clear, indicating suboptimal system performance. This study aims to analyze the effectiveness of the MGPS in preventing biofouling and to identify factors contributing to its performance degradation. Using a qualitative descriptive method with a case study approach, data were collected through direct onboard observation, interviews with the engineering crew, and document analysis. Results indicate that the decreased effectiveness was primarily caused by insufficient electrode maintenance, unstable electrical parameters (current and voltage), and inadequate operational monitoring. These deficiencies compromised the electrolysis process, preventing sufficient ion release. It is concluded that MGPS efficacy is contingent upon stable electrical parameters, rigorous preventive maintenance, and consistent operational supervision in accordance with established procedures.
Co-Authors Abdi Seno Aditya, Ricko Afdy Febriano Agus Prawoto Agus Prawoto Agus Prawoto Agus Prawoto Antonius Edy Kristiyono Antonius Edy Kristiyono Antonius Edy Kristiyono Antonius Edy Kristiyono Antony Damanik Anugrah Nur Prasetyo Aramita, Ankaa Neha Ardelia Ayu Safitri Arisusanty, Dian Junita Arrofi, Faizal Asdiana, Femmy Azis Nugroho Bayhaqi Putra Brian Pratama Timur Bugi Nugraha Bugi Nugraha Cahya Ire Pusnicha Capt. Firdaus Sitepu Cicilia Kunti Dewi Cahyaningtyas Dahri, Muh Dai Robbi, Shofa Damanik, Antony Dewi Amara Parardhya Dhea Putri Ananda Br Sitepu Dirhamsyah Diva Permata Tri Putri Diyah Purwitasari Dwinita Nuraisyah Saputri Dyah Ratnaningsih Dyah Ratnaningsih Dyah Ratnaningsih Dyah Ratnaningsih Dyah Ratnaningsih Edy Kristyono, Antonius Eka Nurmala Sari Agustina, Eka Nurmala Sari Eka Putri, Anggraeini Elise Dwi Lestari Elly Kusumawati Erika Chandra Wulandari Eva Wina Aprielya Damayanti Faizal Arrofi Faradita Ayu Anggraini Faris Nofandi Femmy Asdiana Femmy Asdiana Firdaus Sitepu Firdaus Sitepu Frenki Imanto Ghina, Devita Henna Nurdiansari I Gusti Ayu Candra Paramitha Dewi I'ie Suwondo I'ie Suwondo Iie Suwondo Iksan Brahmada Imam Sutrisno Jose Beno, Jose Kadek Ceisa Ari Putri Laksmi Kinanti, Anindya Fatika Kusumawati, Elly Lely Widyaningrum Maulana, Moch Rabbul Maulidiah Rahmawati Monika Retno Gunarti Monika Retno Gunarti Monika Retno Gunarti Muchammad Afilla Nurrahman Muh. Dahri Muhamad Fikri Supriatmana Muhammad Bagas Fajar Yulianto Muhammad Dahri, Muhammad Muhammad Ibnu Rodhi Pratama Mulyani, Allya Salsabila Putri Nafhan Iqbal Nafhan Iqbal Nafhan Iqbal Naila Andin Tazkiya Gian Nafisah Nasri Nasri Nasri Nasri Nugraha, Bugi Nugraha, Francisco Crisna Agung Panggayuh, Fazel Gendran Panji Bintang Pratama Pracicilia, Dhenha Ary Pratowo, Agus Prihanoke, Rezky Febriansyah Prima Yudha Yudianto Prima Yudha Yudianto Putra, Denanda Bripka Yunarko Qurrotul Laili Rahmawati, Maulidiah Rama Syahputra Simatupang Rama Syahputra Simatupang Ratnaningsih, Dyah Renta Novaliana Siahaan Renta Novaliana Siahaan Restu Husada, Alam Syah Retno Gunarti, Monika Rika Fitriani Rizqi Aini Romanda Annas Amrullah Rosalia Indah Sari Shofa Dai Robbi Shofa Dai Robbi Simatupang, Rama Syahputra Sriningrum, Kadek Dwi Sutan Dijavantha Teguh Pribadi Teguh Pribadi Trisnowati Rahayu Trisnowati Rahayu Trisnowati Rahayu Vensha Pratama Annurransyah Vigih Hery Kristanto Virginia Pustya Nautika Wahyu Aria Prayoga Wani S, Otri Wani Sihaloho, Otri Wira Negara, Dafa Wiratama, Ahmad Alfan Wulan Marlia Sandi Wulan Marlia Sandi Yudianto, Prima Yudha Yulia Rahmawati ⁠Femmy Asdiana