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Meteor STIP Marunda
Published by Sekolah Tinggi Ilmu Pelayaran Jakarta
ISSN : 19794746     EISSN : 26854775     DOI : -
Core Subject : Economy, Education, Engineering,
Economics, Econometrics & Finance Education Engineering Languange, Linguistic, Communication & Media Transportation
Meteor STIP Marunda merupakan jurnal ilmiah nasional berkala sebagai media untuk mempublikasikan hasil penelitian bagi para akademisi, peneliti maupun praktisi di bidang pelayaran pada umumnya. Berdasarkan fokus dan ruang lingkup jurnal maka artikel yang dapat di muat dalam Jurnal ini meliputi 5 hal (termasuk bidang lain yang masih ada kaitannya dalam pelayaran) yaitu : 1) Nautika; 2) Permesinan Kapal; 3) Ketatalaksanaan dan Kepelabuhanan; 4) Pendidikan Kepelautan; 5) Diklat Kepelautan.
Arjuna Subject : -
Articles 291 Documents
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Resilience Analysis of Lake Lot Tawar Coastal Communities to Changes in the Maritime Environment: A Case Study in Aceh Tengah Sabaruddin; Muhammad David; Dita Romadhoni; Thaibil Anwar; Baihaqi; Putu Suarsana
Meteor STIP Marunda Vol. 17 No. 2 (2024): December
Publisher : Sekolah Tinggi Ilmu Pelayaran Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36101/msm.v17i2.97

Abstract

Changes in the maritime environment, such as ecosystem degradation, climate change and human activities, pose major challenges to coastal communities. This research aims to analyze the level of resilience of coastal communities of Lake Lot Tawar in Central Aceh District to changes in the maritime environment. The approach used in this research is a qualitative method with a case study, where primary data is obtained through in-depth interviews with local stakeholders, as well as field observations. The results show that the level of resilience of coastal communities in this region is influenced by various factors, including socio-economic conditions, government policies, and the level of public awareness of the importance of environmental conservation. Communities that have active involvement in sustainable economic activities, as well as access to information and support from government and non-government institutions, tend to be more resistant to the impacts of environmental change. The study also found a need to improve the adaptive capacity of communities through environmental education programs and adaptation skills training. In conclusion, the resilience of Lake Lot Tawar coastal communities to changes in the maritime environment can be improved through a holistic approach involving various stakeholders.
Qualitative Study of Content-Based Instruction in Maritime English Learning Yuniar Ayu Hafita; Ryan Sumarta; Agus Sulistiono; Dodik Widarbowo
Meteor STIP Marunda Vol. 17 No. 2 (2024): December
Publisher : Sekolah Tinggi Ilmu Pelayaran Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36101/msm.v17i2.102

Abstract

This study investigates the impact of the Content-Based Instruction (CBI) approach on Maritime English learning among fourth-semester cadets at Sorong Merchant Marine Polytechnic. Using a qualitative method, observations were conducted over two months to assess cadet engagement, participation, and language use during CBI-based lessons. The findings indicate that integrating technical maritime content, such as navigation and emergency communication, significantly increased cadet motivation and engagement by making learning more relevant to their future careers. Cadets showed notable improvements in using specialized maritime terminology in both spoken and written tasks, demonstrating CBI's effectiveness in facilitating vocabulary acquisition and practical language skills. However, challenges emerged, including varying levels of English proficiency, which affected some cadets' ability to engage fully. While CBI supports technical language use, it does not entirely address foundational language gaps, such as grammar and pronunciation, suggesting a need for supplemental instruction. Overall, CBI is a promising approach for Maritime English education, enhancing language proficiency and professional skills, but further adaptations are required to accommodate all proficiency levels and ensure comprehensive learning outcomes.
A Navigation Lamp Detection to Avoid Collision for Unmanned Surface Vehicle (USV) Putu Indah Sri Puspadewi; Tsaubiyah Khairun Nisa Ali; Henna Nurdiansari; Akhmad Kasan Gupron; Akhmad Rizqi
Meteor STIP Marunda Vol. 17 No. 2 (2024): December
Publisher : Sekolah Tinggi Ilmu Pelayaran Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36101/msm.v17i2.114

Abstract

Unmanned Surface Vehicle (USV) or unmanned ship has become a major focus in the development of shipping technology to improve the efficiency and safety of navigation on the water. This research carried out the design and creation of an unmanned ship system equipped with an ESP32 camera to detect the navigation lights of other ships and avoid potential collisions. In this system, the initial response of the ESP32CAM camera reads the color of the lights approaching the unmanned ship with less than 100 cm. ESP32CAM reads and identifies colors through image processing. When ESP32CAM detects green and red-light colors, the ESP32CAM microcontroller commands the buzzer to sound. The color detection system works with this command, if ESP32CAM detects red then the ESP32CAM microcontroller will send a signal to the servo motor to move left, while ESP32CAM detects green the ESP32CAM microcontroller will send a signal to the servo motor to move right. The servo motor functions as a ship rudder drive of a USV or unmanned ship. The Navigation lamp system test using ESP32CAM camera to prevent ship collisions is carried out with a predetermined scenario, independent light color testing, and whole system testing. The results of the research are : Color detection is successful. The camera can recognize the color of the light and the unmanned ship is able to take appropriate action to avoid collisions based on the color light signal and the navigation lamp system. The ESP32CAM camera can identify the optimum light at 100cm.
OPTIMIZATION OF INERT GAS SYSTEM MAINTENANCE TO PREVENT EXPLOSIONS IN THE CARGO TANKS OF THE MT. GRIYA CIREBON Kenzha Aulia Askar; Siti Hestika Hasanah
Meteor STIP Marunda Vol. 16 No. 1 (2023): June
Publisher : Sekolah Tinggi Ilmu Pelayaran Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36101/msm.v16i1.115

Abstract

The MT. Griya Cirebon is a crude oil tanker whose loading and unloading operations rely heavily on the reliability of the Inert Gas System (IGS). The IGS serves to reduce the oxygen concentration inside the cargo tanks to prevent explosions caused by the mixing of hydrocarbon vapors with air. During the author’s onboard project aboard the MT. Griya Cirebon between October 2021 and August 2022, two recurring failures disrupted unloading operations: the inert gas supply temperature rose to 60°C — far above the permissible limit of 5°C above seawater temperature — and an oxygen concentration in the inert gas reaching 6.54%, exceeding the maximum limit of 5% set by the IMO. This study employed a qualitative descriptive method using observation, interviews, and documentation to identify the root causes and formulate corrective actions. The results showed that the high inert gas temperature was caused by suboptimal scrubber unit performance due to inadequate maintenance of the seawater spray nozzles and the scrubber pump (impeller wear, clogged suction lines, and dirty filters). The high oxygen content was caused by a leak in the rubber flexible hose upstream of the inert gas blower, triggered by strong vibrations resulting from shaft/impeller misalignment and material fatigue in the rubber hose. Recommended solutions include scheduled maintenance in accordance with the manual, replacement of damaged impellers and rubber flexible hoses, realignment of the blower shaft, and calibration of the oxygen analyzer. Implementing these measures will restore IGS performance and ensure the safety and operational efficiency of the tanker’s cargo operations.
Utilization of Solar Cell Power Generation System to Reduce Fuel Consumption on MT. Hendropriyono III Agus Priyanto; Diah Zakiah; Damayanto Purba
Meteor STIP Marunda Vol. 16 No. 1 (2023): June
Publisher : Sekolah Tinggi Ilmu Pelayaran Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36101/msm.v16i1.116

Abstract

The use of fossil fuels as the primary energy source for ship power generation has led to increasing environmental concerns, particularly regarding greenhouse gas emissions and fuel depletion. This study investigates the utilization of a solar cell power generation system as an alternative energy source to reduce fuel consumption on MT. Hendropriyono III, a tanker vessel operated by PT. Cakra Manunggal Semesta. Employing a Research and Development (R&D) methodology according to Sugiyono's model, a prototype of a solar photovoltaic (PV) system was designed, validated by an expert, and tested. The prototype consisted of a 60W monocrystalline solar panel, a solar charger controller (SCC), a 12V/5Ah battery, and a 300W inverter. Testing over three days under overcast conditions in Jakarta yielded an average voltage output of 12.21–12.57V during peak sunlight hours (07:00–15:00) and sustained a 6W AC lamp load for approximately 10 hours. Expert validation scored the prototype at 100% suitability, while a trial assessment by 15 marine engineering cadets rated it at 96.25% ("suitable"). Scaling the design for onboard application, two SunPower E20-435-COM panels (435 Wp each) installed on the wing deck (123.24 m²) would generate approximately 4.35 kWh per day under an assumed 5-hour peak sun equivalent, sufficient to supply navigation deck lighting loads of 3.953 kWh/day. The resulting reduction in diesel generator load from 440 kW to 433 kW during anchorage translates to an estimated annual fuel saving of 11,542 liters of LSFO, equivalent to approximately Rp 191,597,200 per year, with a return on investment period of approximately 1.9 months against an initial installation cost of Rp 30,572,000. These findings demonstrate that solar PV integration on vessels operating in Indonesian waters is technically feasible and economically advantageous, supporting IMO MARPOL Annex VI emission reduction objectives.
Analysis of Lubricating Oil Pressure Decrease in the Generator Engine on Board MT. Anargya I Defi Marlina; Bambang Sumali; Shahnaz Rhein
Meteor STIP Marunda Vol. 16 No. 1 (2023): June
Publisher : Sekolah Tinggi Ilmu Pelayaran Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36101/msm.v16i1.118

Abstract

This study aims to analyze the causes of lubricating oil pressure decrease in the generator engine on board MT. Anargya I and to identify appropriate solutions to resolve the issue. The primary problem identified was a drop in oil pressure from the normal operating parameter of 3.6 bar to 2.1 bar on January 21, 2022, while the vessel was sailing from Balikpapan to Batam. The research employed a descriptive qualitative approach using data collection techniques including direct observation, interviews with engineering officers, and documentation study. Analysis was conducted using the fishbone (Ishikawa) diagram method to systematically map the cause-and-effect relationships of the pressure decline phenomenon. The findings revealed two principal causes: first, the fracture of the piston cooling nozzle on cylinder number 2, which was attributed to the use of a plastic material component (part number 3007517) instead of the copper material specified in the engine manual book (BP1115); second, the clogging of the lubricating oil filter by accumulated metal wear particles generated from friction between internal engine components. The study concludes that strict adherence to manufacturer specifications for spare parts procurement and implementation of a systematic preventive maintenance schedule for the lubrication system are essential to prevent recurrence of similar failures.
ANALYSIS OF FRESH WATER GENERATOR OPERATION ON BOARD LNG/C SS. EKAPUTRA 1 Wahyu Kusuma; R. Herlan Guntoro; M. Nurdin
Meteor STIP Marunda Vol. 16 No. 1 (2023): June
Publisher : Sekolah Tinggi Ilmu Pelayaran Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36101/msm.v16i1.119

Abstract

Fresh water is an essential commodity on board vessels, particularly on LNG/C SS. Ekaputra 1, where it is used as feed water for the main boiler to support high-pressure steam production. The vessel is equipped with a Fresh Water Generator (FWG), an auxiliary device that converts seawater into fresh water through evaporation and condensation processes. Following observation and interviews with the engineer responsible for the equipment, a decline in fresh water production from the FWG was identified. The research findings revealed two principal causes of the production decrease: leakage of the cooling tube in the condenser and the accumulation of salt deposits on the mesh separator. The cooling tube leakage was attributed to operational errors during the startup procedure, specifically the excessively rapid opening interval of the steam inlet valve for the air ejector, which caused rapid pressure changes and thermal differentials that compromised the material integrity of the cooling tube, leading to cracking and leakage. The salt deposits on the mesh separator were caused by the mineral salt content in seawater; under vacuum conditions in the flash chamber, the boiling point decreases and the temperature rises, causing the water to evaporate while the salt remains and accumulates on the mesh separator. Consequently, repairs to the leaking cooling tube and chemical cleaning of the mesh separator are necessary to restore optimal FWG production capacity.
Optimization of Fuel Oil Purifier Maintenance on Board MV. Lumoso Permai Fahrul Ridwan; Effendi; Purnomo
Meteor STIP Marunda Vol. 16 No. 1 (2023): June
Publisher : Sekolah Tinggi Ilmu Pelayaran Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36101/msm.v16i1.120

Abstract

The fuel oil purifier is a critical auxiliary equipment on board vessels, responsible for separating sediments, water, and sludge from fuel oil to ensure clean fuel supply for the main engine and auxiliary machinery. This study investigates the causes of fuel oil purifier malfunction on board MV. Lumoso Permai, a bulk carrier operated by PT. Lumoso Pratama Line, and proposes optimized maintenance strategies to prevent recurrence. During the author's sea practice period from September 2021 to September 2022, two primary operational problems were identified on the Mitsubishi SJ20T-60T type purifier. First, excessive fuel oil waste during the purification process was caused by the accumulation of sludge and contaminants on the bowl body and disc assembly, compounded by the selection of an incorrect gravity disc size. These conditions resulted in fuel overflow through the sludge port rather than discharge through the clean oil outlet. Second, the pilot valve malfunctioned due to worn O-rings and contaminant deposits obstructing the valve passages, preventing proper operating water flow for bowl opening and closing operations. The study employed a descriptive qualitative approach with data collected through direct observation, interviews with the Fourth Engineer, and documentation review. Analysis revealed that both problems were fundamentally attributable to inadequate adherence to the Planned Maintenance System (PMS) schedule and insufficient compliance with the manufacturer's instruction manual. The recommended corrective measures include implementing strict periodic bowl and disc cleaning schedules in accordance with the PMS, conducting routine pilot valve inspection and O-ring replacement, and ensuring proper gravity disc selection based on fuel specific gravity and operating temperature.
Analysis of Non-Optimal Evaporation Process in the Provision Refrigeration System on Board LPG/C Mariner Najib Ali Khan
Meteor STIP Marunda Vol. 16 No. 1 (2023): June
Publisher : Sekolah Tinggi Ilmu Pelayaran Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36101/msm.v16i1.121

Abstract

The provision refrigeration system is essential for preserving food supplies on board vessels during extended voyages. This study analyzes the causes of non-optimal evaporation in the provision refrigeration system on board LPG/C Mariner and proposes corrective measures to restore normal system performance. During the author's sea practice period, the food storage room temperatures deviated significantly from the instruction manual specifications: the meat and fish compartment rose from the required –21°C to –3°C, while the vegetable and lobby storage rose from the normal range of 2–8°C to 17°C. Investigation using a descriptive qualitative approach with problem-solving analysis identified two principal causes. First, the storage room temperature instability was attributed to a damaged expansion valve with a clogged orifice that restricted refrigerant flow to the evaporator, compounded by refrigerant leakage in the circulation system piping that reduced the total refrigerant charge available for heat absorption. Second, the non-optimal evaporation process was caused by a malfunctioning oil separator, in which a blocked lubricating oil return passage and a broken internal spring allowed lubricating oil to enter the refrigerant circulation system. The oil contamination formed ice particles and frost deposits on the evaporator coil pipes, progressively reducing the heat transfer surface area and evaporation efficiency. Corrective measures included replacement of the damaged expansion valve orifice, welding repair of leaking refrigerant pipes, overhaul and component replacement of the oil separator, and application of electric defrosting heater and hot gas defrost systems to remove ice accumulation from the evaporator coils and refrigerant piping.
Application of Exhaust Gas Recirculation to Reduce NOx Emissions from the Main Diesel Engine on Board MV. Maersk Noresund Nasri
Meteor STIP Marunda Vol. 16 No. 1 (2023): June
Publisher : Sekolah Tinggi Ilmu Pelayaran Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36101/msm.v16i1.124

Abstract

NOx emissions from marine diesel engines constitute a significant source of air pollution, contributing to tropospheric ozone formation, acid rain, respiratory health hazards, and greenhouse gas accumulation. Under MARPOL Annex VI regulations, vessels operating within designated Emission Control Areas (ECAs) must comply with Tier III NOx emission limits, necessitating the installation of exhaust gas treatment technologies. This study examines the application of Exhaust Gas Recirculation (EGR) technology on the MAN B&W 6S60ME-C10.5-EGRBP two-stroke main engine on board MV. Maersk Noresund, a 25,805 GT container vessel built in 2021 and operated by Sealand Maersk Asia. The research was conducted during the author's sea practice period from June 23, 2021, to July 12, 2022, using a descriptive qualitative approach with data collected through direct observation, interviews with engineering officers, and documentation review. The study analyzes two primary aspects: the environmental problems caused by NOx emissions from the combustion process, and the operational role of the EGR system in achieving Tier III compliance. The EGR system operates by recirculating approximately 30% of treated exhaust gas back into the scavenging air receiver, replacing a portion of oxygen with CO₂, which has a higher heat capacity. This reduces the peak combustion temperature and consequently minimizes thermal NOx formation. The exhaust gas undergoes pre-spray scrubbing with NaOH solution to neutralize sulfuric acid and remove particulates, cooling in the EGR cooler, water mist separation, and pressurization by the EGR blower before mixing with scavenging air. A comparative evaluation of EGR versus Selective Catalytic Reduction (SCR) and Planned Maintenance System (PMS) versus General Overhaul strategies demonstrates that EGR offers advantages in implementation cost, fuel efficiency improvement, and compatibility with existing engine designs, while PMS provides superior preventive maintenance benefits over periodic overhaul approaches for sustaining optimal EGR performance.

Page 27 of 30 | Total Record : 291

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