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Jurnal Aplikasi Pelayaran dan Kepelabuhanan
Published by Universitas Hang Tuah
ISSN : 20872607     EISSN : 26544911     DOI : https://doi.org/10.30649/japk.v11i1
Core Subject : Economy, Science, Social, Engineering,
Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Engineering Social Sciences Transportation
The Jurnal Aplikasi Pelayaran dan Kepelabuhanan contains scientific writings in the fields of shipping, ship machinery, port management, and transportation, all of which are the result of research or literature review.
Arjuna Subject : Umum - Umum
Articles 173 Documents
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The Impact of Fuel Quality on the Performance and Maintenance of the Ship’s Main Engine Marsudi, Sugeng; Yanti, Dyah Agustin Widhi
JURNAL APLIKASI PELAYARAN DAN KEPELABUHANAN Vol 16 No 1 (2025): bulan September
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/japk.v16i1.185

Abstract

This study aims to analyze the impact of fuel quality on the performance and maintenance of a ship’s main engine. The background of the research arises from the increasing cases of engine component failures caused by low-quality fuel, particularly related to sulfur content, water contamination, and solid particles. The research applied a quantitative approach through laboratory testing of fuel samples and operational observations of the main engine on a 15,000 DWT cargo vessel. Data collection included viscosity analysis, sulfur content measurement, water contamination testing, and engine maintenance records. The results indicate that fuel with viscosity below the standard (decreasing from 180 cSt at 50°C to 120 cSt) increased the specific fuel oil consumption (SFOC) by 6.8%. High sulfur content (3.2% m/m) accelerated deposit formation on the piston crown and exhaust valve. Moreover, water contamination of 0.6% caused micro-corrosion on the fuel pump plunger and shortened the maintenance interval by 1.5 times compared to the standard. The discussion highlights a direct relationship between fuel quality and maintenance cost: within six months, ships operating with low-quality fuel experienced a 22% increase in maintenance cost compared to those using ISO 8217-compliant fuel. In conclusion, fuel quality is a critical factor in maintaining combustion efficiency, engine performance, and maintenance intervals. The study recommends using fuel that meets international standards and improving fuel quality monitoring systems before usage onboard ships.
Operational Risk of Oil Water Separator (OWS) on Tanker Ships with Failure Mode and Effect Analysis (FMEA) Approach for Prevention of Workplace Accidents and Environmental Pollution Pratama, Brachmantiyo Rachman; Azhar, Ali; Daryanto, Daryanto
JURNAL APLIKASI PELAYARAN DAN KEPELABUHANAN Vol 16 No 1 (2025): bulan September
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/japk.v16i1.186

Abstract

The Oil Water Separator (OWS) is a critical system on tankers to prevent marine pollution from oily waste. Its operational failure may cause workplace accidents and violations of MARPOL Annex I, leading to fines and certificate revocation. This study applies the Failure Mode and Effect Analysis (FMEA) method to identify failure modes, analyze causes, and prioritize corrective actions based on the Risk Priority Number (RPN). The analysis revealed several critical failures, including malfunction of the oil content monitor (RPN 336), clogging of the coalescer element (RPN 315), and incomplete closure of the oil discharge valve (RPN 270). Recommendations focus on predictive maintenance, design modifications, and enhanced crew training. The findings confirm that FMEA is effective in shifting OWS maintenance strategies from reactive to risk-based, thereby improving safety and reducing pollution risks.
The Influence of Compensation, Motivation and Work Discipline on Employee Performance at the Harbormaster's Office and Class I Port Authority of Banjarmasin Leki, Rofinus; Faisal, Said Ali; Kadir, Abdul; Audah, Ali; Fatih, Hardika Muhammad
JURNAL APLIKASI PELAYARAN DAN KEPELABUHANAN Vol 16 No 1 (2025): bulan September
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/japk.v16i1.193

Abstract

This study aims to analyze the influence of work motivation, compensation, and work discipline on employee performance at the Port Authority and Harbormaster Office (Kesyahbandaran dan Otoritas Pelabuhan) Class I Banjarmasin. The research is based on the importance of improving employee performance as a key factor in ensuring the organization’s success in delivering optimal public services. A quantitative approach was employed using a survey method with questionnaires distributed to selected employees as respondents through purposive sampling. Data analysis was carried out using multiple linear regression with F-test, t-test, and coefficient of determination (R²). The findings indicate that work motivation, compensation, and work discipline have a positive and significant effect on employee performance, both simultaneously and partially. The coefficient of determination (R²) of 0.978 shows that the three independent variables explain 97.8% of employee performance variation, while the remaining 2.2% is influenced by other factors outside the model. Partially, work discipline is the most dominant variable influencing employee performance. The study concludes that improving work discipline, supported by adequate motivation and compensation, significantly enhances employee performance. The practical implication suggests that management should strengthen disciplinary policies, reward systems, and motivational programs to optimize employee performance.
Analysis of Fuel Efficiency and Speed Increase on Ferry MV BATAM FAST 20 (High Speed Craft) through the Installation of a Hull Vane Ardiansyah, Angga Andi; Suwasono, Bagiyo; Awwalin, Rodlitul
JURNAL APLIKASI PELAYARAN DAN KEPELABUHANAN Vol 16 No 2 (2026): bulan Maret
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/japk.v16i2.189

Abstract

This study investigates the impact of Hull Vane System installation on fuel efficiency and speed enhancement for High Speed Craft (HSC) ferries, focusing on MV. Batam Fast 20 operating on the Batam–Singapore route. The Hull Vane, a fixed hydrofoil mounted at the stern below the waterline, is designed to reduce hydrodynamic resistance and improve vessel performance. Numerical simulations using Computational Fluid Dynamics (CFD) with RANSE-based solvers were conducted across various speeds (10–25 knots) and foil attack angles (0°, 2°, 4°,6°). Results indicate that Hull Vane offers significant drag reduction only at low speeds (10 knots), achieving up to 26.99% resistance reduction. However, at operational speeds (20–25 knots), the system increases resistance due to excessive lift, causing bow trim and higher wetted surface area. Validation was performed through grid independence studies and comparison with experimental data and Maxsurf Resistance software. The findings conclude that Hull Vane System is unsuitable for MV. Batam Fast 20 due to its hull geometry and waterjet configuration. The study recommends exploring alternative technologies such as bow foils or automated trim control systems for high-speed vessels, emphasizing the need for adaptive hydrodynamic solutions in modern ferry operations.
Analysis of the Impact of Intercooler Effectiveness Reduction On Combustion Air Pressure and Fuel Consumption OF THE MAIN ENGINE OF THE NINGBO 8300 MV SEMANGAT MAS Pratama, Faris Dida; Saktiono, Maxima Ari; Dewantara, Belly Yan
JURNAL APLIKASI PELAYARAN DAN KEPELABUHANAN Vol 16 No 2 (2026): bulan Maret
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/japk.v16i2.190

Abstract

The decrease in intercooler effectiveness in a ship's main engine can significantly affect performance and fuel efficiency. This final project aims to analyze the impact of the decrease in intercooler effectiveness on combustion air pressure and fuel consumption of the main engine of the Ningbo 8300 MV Semangat Mas. The research was conducted using observation methods and data analysis from measurements obtained during the ship's operation. The collected data includes combustion air pressure, intake air temperature, and fuel consumption under normal engine conditions and conditions with decreased intercooler effectiveness. The results of the study show that the decrease in intercooler effectiveness causes an increase in intake air temperature, which in turn raises combustion air pressure and fuel consumption. This phenomenon indicates that the decrease in intercooler performance can worsen fuel efficiency and reduce overall engine performance. The conclusion of this research highlights the importance of routine intercooler maintenance to ensure the optimal performance of the ship's main engine, reduce fuel consumption, and improve the ship's operational efficiency.
Analysis of Gearbox Ratio Mismatchwith Main Engine RPM, Resulting in High Temperature Lubricating Oil Lubrication in the Gearbox of MV. Prakarsa Mas Riswanto, Adi; Saktiono, Maxima Ari; Awwalin, Rodlitul
JURNAL APLIKASI PELAYARAN DAN KEPELABUHANAN Vol 16 No 2 (2026): bulan Maret
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/japk.v16i2.191

Abstract

Gearbox is a vital component in the ship propulsion system that functions to transmit power from the main engine to the propeller. On the MV. Mas Initiative, found a discrepancy between the gearbox rotation ratio with the RPM of the main engine, which has an impact on increasing the lubrication temperature of the gearbox lubricating oil to exceed the optimal limit. This condition can reduce lubrication efficiency, accelerate component wear, andreduce overall ship performance. This study aims to analyze the factors that cause gearbox ratio mismatch, evaluate its impact on lubricant temperature, and develop technical recommendations to overcome these problems. The method used is descriptive qualitative approach through direct observation, interviews with the crew, and literature studies. The results showed that the main causes of this discrepancy include damage to gearbox components, a non-optimal lubrication system, as well as a lack of regular maintenance. The high temperature of the lubricant has an impact on decreasing the viscosity of the oil and decreasing the efficiency of power transmission. Recommended solutions include regular cleaning of the oil cooler and filter, checking the pressure of the oil pump, as well as regular oil quality testing. It is expectedthat the results of this study canbe a referencein gearbox maintenance to improve the reliability and operational efficiency of the ship.
Optimization of Fuel System Maintenance for Smooth Operation of Main Engines on KM Pratama Mas Ship Permadi, Yudha Sali; Mursidi, Mursidi; Saktiono, Maxima Ari
JURNAL APLIKASI PELAYARAN DAN KEPELABUHANAN Vol 16 No 2 (2026): bulan Maret
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/japk.v16i2.192

Abstract

The main engine is the primary component in a ship's propulsion system, responsible for the continuity of its voyages. A critical supporting system for the main engine's performance is the fuel system. This system supplies fuel at the correct pressure and quantity to the combustion chamber, ensuring optimal combustion. Any disruption or irregularity in the fuel system can cause the main engine's performance to decline, potentially leading to serious damage that hinders the ship's operation. This study aims to analyze the factors causing fuel inefficiency in the main engine and to formulate technical recommendations to address these issues. The research uses a descriptive qualitative approach through direct observation, interviews with the ship's crew, and a literature review. The results indicate that the main causes of these issues include:An increase in exhaust gas temperature due to the fuel injector's operating hours exceeding its maintenance schedule, leading to the injector not functioning optimally.The main engine shutting down unexpectedly due to dirt and water in the fuel, which interfered with the fuel purifier's operation, resulting in poor fuel quality.The suggested solutions include installing a separator to achieve better fuel quality and increasing the temperature of the MFO fuel. It is hoped that the findings of this research can serve as a reference for fuel system maintenance to improve the ship's operational reliability and efficiency.
Optimization of RBD Palm Stearin Cargo Handling to Ensure the Smooth Unloading Process on MT Celeste I Tandililing, Welly; Alamsyah, Nur; Rusman, Rusman
JURNAL APLIKASI PELAYARAN DAN KEPELABUHANAN Vol 16 No 2 (2026): bulan Maret
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/japk.v16i2.198

Abstract

RBD Palm Stearin is the solid fraction of palm oil with a high melting point, making it highly sensitive to temperature variations during sea transportation and cargo discharge. This characteristic causes the cargo to solidify easily, especially when vessels operate in low ambient temperatures. On board MT Celeste I, such conditions have led to flow obstructions, cargo pump stoppages, and delays in loading and unloading, adversely affecting operational efficiency a nd work safety.This study aims to analyze the technical, operational, and human factors contributing to cargo solidification and to formulate optimization strategies to ensure safe and efficient discharge operations. A qualitative approach was applied through direct onboard observations, in-depth interviews with crew members and port personnel, and a review of operational documents from December 2023 to December 2024. The data were thematically analyzed to identify causal patterns, event mechanisms, and best practices in temperature control and cargo handling. The research focuses on temperature management, equipment readiness, and strict adherence to Standard Operating Procedures (SOPs) from pre-discharge to final stripping. The results indicate that smooth operations depend heavily on maintaining temperatures above the melting point through well-functioning heaters, effective steam tracing systems, gradual preheating, and even heat circulation. Key challenges include heater leakages, solid accumulation in pipelines or manifolds, thermal effects from ballast operations, and procedural errors. The study recommends implementing real-time temperature monitoring, conducting regular preventive maintenance, enhancing crew competence through technical training, and strengthening SOPs to ensure that heating and cargo discharge processes are carried out safely and efficiently.
Optimizing the Enhancement of Dynamic Positioning Operator Competencies on MV. ENA HABITAT DP-II Cahyono, Dwi
JURNAL APLIKASI PELAYARAN DAN KEPELABUHANAN Vol 16 No 2 (2026): bulan Maret
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/japk.v16i2.199

Abstract

The Dynamic Positioning (DP) System is essential in modern maritime operations, especially for offshore projects, as it enables vessels to maintain a fixed position and heading without traditional anchoring. A DP Operator plays a critical role in ensuring the system functions effectively, and the success of DP operations largely depends on their competence. Therefore, optimizing operator skills is key to safe and efficient operations. This qualitative study draws on the author’s observations as a DP Operator aboard the MV. ENA HABITAT, as well as relevant literature. It identifies three essential phases of DP offshore operations: pre-operation procedures, on-DP operation, and post-operation or termination. Neglecting any of these stages can disrupt project progress, cause financial losses, or compromise safety. The study also highlights common challenges faced during DP operations on MV. ENA HABITAT DP-II, including sensor failures, thruster issues, system configuration difficulties, harsh environmental conditions, human error, external infrastructure interference, and communication breakdowns. These issues, if unaddressed, can lead to serious incidents. To mitigate these risks, the paper emphasizes enhancing DP Operator capabilities through a range of strategies: accumulating sea time on various vessel types, engaging in advanced simulator training, deepening system knowledge via FMEA (Failure Mode and Effects Analysis) courses, regularly evaluating operations, participating in Continuing Professional Development (CPD), and strengthening non-technical skills such as teamwork and communication.Improving these competencies ensures not only operational success but also the safety and security of both vessel and crew during DP activities.
Safety Risk Analysis in AHTS Ship Operations Using the HAZOP Method Alfarabi, Ahfadz Zidan; Suwondo, Iie; Dahri, Mohammad; Rahayu, Trisnowati
JURNAL APLIKASI PELAYARAN DAN KEPELABUHANAN Vol 16 No 2 (2026): bulan Maret
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/japk.v16i2.201

Abstract

Occupational safety on board ships is a crucial aspect that must be fully considered, especially in high-risk Anchor Handling Tug Supply (AHTS) vessel activities. This study aims to conduct a safety risk assessment on AHTS vessel activities using the Hazard and Operability Study (HAZOP) method. The research method used is descriptive qualitative, which involves direct observation, interviews, and documentation analysis to obtain comprehensive data on potential hazards and operability in AHTS vessel activities. Some key findings include the identification of often overlooked potential hazards, such as adverse weather conditions, poorly maintained equipment, and non-compliance with safety procedures. Based on the HAZOP analysis used in this study, these risks will be categorized into three levels: low risk, moderate risk, and high risk. The analysis shows that most risks are at the moderate risk level, which requires a planned control approach and temporary measures to reduce the risks. Implementation of recommended mitigation measures, such as regular training on occupational safety, better equipment maintenance, and strict supervision of procedural compliance, can shift the risks from the moderate to low risk level. Effectively implementing the HAZOP method can improve occupational safety on AHTS vessels.

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