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All Journal Gemilang: Jurnal Manajemen dan Akuntansi Profit: Jurnal Manajemen, Bisnis dan Akuntansi Jurnal Riset Rumpun Ilmu Teknik (JURRITEK) Jurnal Teknik Mesin, Industri, Elektro dan Informatika Jurnal Riset Manajemen Journal of Engineering Science and Technology Management Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan
Elly Kusumawati
Unknown Affiliation
Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Prototype Steam Plant sebagai Penyedia Sumber Daya Listrik pada Sistem Vessel To Grid (V2G) Ray Vargas; Sonhaji; Elly Kusumawati
JURAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 3 (2025): Desember : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i3.6721

Abstract

This research aims to develop and evaluate the performance of a steam plant prototype designed as an alternative source of electrical energy to support the Vessel to Grid (V2G) concept. Utilization of backup energy on ships is becoming important as electricity demand increases and demands for a more sustainable electrical system. This system relies on ESP32 microcontroller technology as a control center that functions to monitor and control several key parameters, including steam pressure, combustion temperature, boiler water level, and the generated electrical voltage. The research method used is an experiment with a static and dynamic testing approach. Static testing is carried out to measure the performance of main components such as the boiler, turbine, and generator separately, while dynamic testing focuses on evaluating the overall system by involving the integration of sensors and supporting actuators. The test data is then analyzed quantitatively to determine the system's response to variations in steam pressure, temperature, and other operational conditions. The results show that the steam produced by the boiler is able to rotate the turbine, thereby driving the generator to produce electricity. The maximum voltage achieved is 25.7 volts at a steam pressure of 50 psi. The highest energy conversion efficiency was recorded at 4%, while the lowest efficiency was 0.9%. These findings demonstrate that, despite its relatively low efficiency, the prototype can function as an alternative energy source and emergency backup solution. Thus, this research provides an initial contribution to supporting the implementation of the V2G concept through the development of a small-scale steam plant-based energy conversion system.
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): JES-TM 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.
The Effectiveness of Emergency Drill to Prepare Crew to Face Abandoned Ships on MT. Pagerungan Daffanda Yoda Wibisono; Elise Dwi Lestari; Elly Kusumawati; Upik Widyaningsih
Journal of Engineering Science and Technology Management (JES-TM) Vol. 6 No. 2 (2026): JES-TM 2026
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v6i2.452

Abstract

Safety of life at sea is a paramount operational priority that heavily relies on crew preparedness in managing maritime emergencies. This study evaluates the effectiveness of abandon ship drills in improving crew readiness on the commercial tanker MT. Pagerungan. Using a qualitative case-study design, data were collected over a 12-month period through direct participant observations, structured interviews with six key personnel, and documentary analysis. Effectiveness was measured using specific operational indicators: alarm response time, correct usage of life-saving appliances (LSAs), compliance with muster list duties, and communication efficiency. The results indicate a significant gap between administrative compliance and practical readiness. Drills were conducted only four times annually, violating the monthly requirement stipulated by the Safety of Life at Sea (SOLAS) Convention. Observations revealed critical deficiencies, including the inability of junior and catering crew members to correctly don lifejackets and a lack of role awareness among specific deck ratings. Furthermore, commercial pressures and a tendency to view drills as bureaucratic formalities hindered the development of a robust safety culture. The study concludes that while incremental improvements were observed across repeated drills, overall effectiveness remains structurally fragile. Recommendations include the rigorous implementation of monthly drills, integration of pre-drill toolbox meetings, station-specific compliance checklists, and documented competency assessments to bridge the gap between regulatory mandates and actual emergency preparedness
Optimization of Deck Crane Maintenance to Facilitate the Loading and Unloading Process on MV. Tanto Keluarga Bimo Kartika Utama Adisa Putra; Elise Dwi Lestari; Elly Kusumawati; Upik Widyaningsih
Journal of Engineering Science and Technology Management (JES-TM) Vol. 6 No. 2 (2026): JES-TM 2026
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v6i2.453

Abstract

This research was conducted to analyze the implementation of deck crane maintenance, identify operational obstacles, and formulate optimization efforts to improve the cargo handling performance on MV Tanto Keluarga. The study utilized a qualitative descriptive approach supported by quantitative operational data, gathering evidence through 12 months of observation during sea practice, ship documentation analysis, and semi-structured interviews. The informants included the Chief Officer, Bosun, and an Able Seaman. The findings reveal that deck crane maintenance was significantly delayed due to the high pressure of the ship's port schedule, which disrupted the Planned Maintenance System (PMS). Consequently, the lack of timely lubrication led to critical wire rope wear and slewing gear corrosion. This chain of component degradation directly caused a heave-up system disruption, resulting in a documented 4-hour operational downtime during cargo discharging in Tobelo Port. Optimization interventions were systematically carried out through strict pre-operational visual inspections, massive re-lubrication, and schedule calibration between cargo operations and preventive maintenance. Following these interventions, subsequent loading and unloading operations recorded zero technical downtime, demonstrating a tangible improvement in equipment reliability and operational efficiency
Analysis of Lifeboat Maintenance to Support Crew Safety on Board MV. Aliyah Pratama in Accordance with SOLAS Chapter III Navire Tsabitah Lamaya; Damoyanto Purba; Elly Kusumawati; I'ie Suwondo
Journal of Engineering Science and Technology Management (JES-TM) Vol. 6 No. 2 (2026): JES-TM 2026
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v6i2.456

Abstract

Non-compliance in the execution of lifeboat maintenance procedures significantly heightens operational risks and impairs evacuation effectiveness during maritime emergencies. This study evaluates the conformity of lifeboat maintenance and operational readiness on board the bulk carrier MV. Aliyah Pratama against the specific requirements of the Safety of Life at Sea (SOLAS) Chapter III Regulation 20 and the Life-Saving Appliances (LSA) Code. Utilizing a qualitative descriptive case study approach, data were collected over a 12-month period at Cilegon Anchorage through direct field observations, structured interviews with three key deck officers, and systematic reviews of the ship’s Planned Maintenance System (PMS) documentation. A compliance matrix was developed to benchmark observed mechanical and operational conditions against regulatory standards. The findings reveal critical discrepancies, including mechanical stiffness in the starboard gear brake, active corrosion on wire falls and winches, hardened watertight door seals, and expired emergency rations. Furthermore, abandon-ship drills demonstrated a lack of situational awareness and muster list comprehension among the crew. Root cause analysis, structured via the Ishikawa (Fishbone) framework, indicates that these non-conformities stem from superficial, visually limited inspections, high operational workloads, an aggressive saline environment, and shore-based procurement delays. The study concludes that the vessel's current maintenance execution functions primarily as an administrative formality rather than a rigorous functional safeguard. Corrective recommendations prioritize the implementation of deep-technical functional testing, expedited supply-chain logistics for safety equipment, and mandatory pre-drill tactical briefings to restore optimal evacuation.
Co-Authors Adiisty Nur Fadilla AGUS DWI SANTOSO Agus Prawoto Ahmatul Ilmi Abdullah Akhmad Kasan Gupron Alia, Diana Anak Agung Istri Sri Wahyuni Antony Damanik Bimo Kartika Utama Adisa Putra Brian Pratama Timur Bugi Nugraha Daffanda Yoda Wibisono Damoyanto Purba Deva Yuan Mahardika Dirhamsyah Dirhamsyah Diyah Purwitasari Elise Dwi Lestari Frenki Imanto I'ie Suwondo Isnaini Kurnia Mohammad Arif Rahmadhani Monika Retno Gunarti Nabila Aisya Savitri Nasri Navire Tsabitah Lamaya Nurdiansari, Henna Ray Vargas Renita Comalasari Dewi Simanjuntak Reyhan Batara Victorrahman Rizqi Aini Shofa Dai Robbi Sianturi, Intan Sonhaji Teuku Ali Wabiansyah Trisnowati Rahayu Upik Widyaningsih Vigih Hery Kristanto Zulfa Maulida Nur Hafidzah