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Ocean Engineering: Jurnal Ilmu Teknik dan Teknologi Maritim
Published by Universitas Maritim AMNI Semarang
ISSN : 29635012     EISSN : 29635454     DOI : 10.58192
Core Subject : Engineering,
Engineering Mechanical Engineering
Menyambut baik kiriman yang memberikan wawasan tentang masalah terkini dan utama yang berhubungan dengan ilmu Teknik dan Teknologi Maritim. Artikel bisa ditulis dalam bahasa Inggris atau bahasa Indonesia.
Arjuna Subject : Teknik (semua kategori) - Teknik Kelautan
Articles 8 Documents
 1 
Search results for , issue "Vol. 4 No. 1 (2025): Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim" : 8 Documents clear
Proses Clearance In dan Out Terhadap Kapal Cargo di Pelabuhan Weda Halmahera Tengah Diageni PT Pelayaran Bahtera Diserindo Titis Ari Wibowo; Agung Kwartama
Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim Vol. 4 No. 1 (2025): Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/ocean.v4i1.3062

Abstract

The procedures for cargo ship clearance in and out at Weda Port, Central Halmahera, managed by PT Pelayaran Bahtera Diserindo, play a vital role in ensuring efficient port operations and regulatory compliance. The clearance-in process consists of several steps that cargo ships must complete before entering the port, including document verification, health inspections, and adherence to security protocols. On the other hand, the clearance-out process involves procedures that must be completed before a ship departs, such as submitting shipping documents and undergoing cargo inspections. This study aims to examine these procedures, identify the challenges faced, and propose recommendations to enhance the efficiency and effectiveness of clearance processes at Weda Port. By utilizing the latest data and statistics, this research also emphasizes the significant role of PT Pelayaran Bahtera Diserindo in facilitating logistics operations in North Maluku. The findings are expected to provide a comprehensive understanding of the existing procedures and their impact on Indonesia's maritime industry.
Analisis Faktor Yang Mempengaruhi Idle Time (IT) Pada Proses Bongkar Muat Kapal di Terminal Petikemas Koja Pelabuhan Tanjung Priok Jakarta Wibowo, Purnomo Ari; Negara, Gembong Satria; Weda, Iwan; Guritno, Suryo; Baharudin, Irwan; Emha, Faresh
Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim Vol. 4 No. 1 (2025): Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/ocean.v3i4.3053

Abstract

been resolved in Indonesia. This research aims to determine the influence of Port Services, Loading and Unloading Performance, Loading and Unloading Equipment and Natural Factors on Idle Time at the Koja Container Terminal, Tanjung Priok Port, Jakarta. The population in this study were operational employees and ship crew from the deck department division. The sample used in this research was 80 respondents. And using a disproportionate stratified random sampling technique, then the data was analyzed using multiple linear regression with the help of (software) Statistical Package For Social Science (SPSS) Version 25. Based on the research results and data analysis, the regression equation was produced: Y= -1.176+ 0.334X1+ 0.181X2 + 0.318X3 + 0.302X4+ . From the equation it is known that the dominant variable influencing Idle Time is the Port Services variable with a regression coefficient of 0.334. The R2 (R square) test obtained a result of (67%), which means that Idle Time at the Koja Container Terminal, Tanjung Priok Port, Jakarta, is influenced by the variables Port Service, Loading and Unloading Performance, Loading and Unloading Equipment and Natural Factors, namely 67%. The conclusion is that the independent variables (port services, loading and unloading performance, loading and unloading equipment, and natural factors) have a negative and significant effect on the dependent variable Idle Time. This is because the results of the multiple linear regression equation show that t count > t table.
Rancang Bangun Pengendali Hoist Crane Berbasis Jaringan Menggunakan Aplikasi Android Rivo Restu Ananda Putra; Sri Mulyanto Herlambang; Henna Nurdiansari
Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim Vol. 4 No. 1 (2025): Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/ocean.v4i1.3136

Abstract

The phenomenon that occurs in the load lifting system is the need for an efficient and reliable mechanism to move the crane hoist pulley vertically and horizontally. This study aims to design and test a crane hoist system that uses a DC motor and a stepper motor controlled by an L293D motor driver, and to develop an application based on MIT App Inventor to control the movement of the motor. The research method used is integrated hardware and software design, followed by testing the performance of the motor, driver, and the application developed. Testing was carried out under limited load conditions, to measure the motor speed, voltage, and current used at loads of 10 to 100 grams. The results of the study showed that the system can function well at varying speeds, and the motor is able to lift a maximum load of up to 100 grams with a speed that decreases according to the weight of the load. The MIT App Inventor application successfully controls the motor effectively via a WiFi connection with a maximum distance of 10 meters, and loads the operation of the crane vertically and horizontally. This study proves that the designed system is able to work optimally in lifting and moving loads, and the application developed provides easy and efficient control.
Analisis Safety Patrol Berbasis IPBR dan HIRARC Untuk Mengurangi Kecelakaan Kerja di Terminal Jamrud Satriya, Rafdi Ma’ruf; Kartikawati, Marina; Kalmah, Kalmah; Hidayati, Ratna
Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim Vol. 4 No. 1 (2025): Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/ocean.v3i4.3171

Abstract

PT Pelindo Multi Terminal is a company engaged in loading and unloading services for liquid bulk, dry bulk and containers. Hazard Identification, Risk Assessment and Risk Control (HIRARC) is a method for identifying potential hazards that exist in each type of work. The aim of this research is to determine hazard identification, risk assessment and risk control using the Hazard Identification, Risk Assessment and Risk Control (HIRARC) method at PT Pelindo Multi Terminal. Research was carried out on all aspects of each liquid bulk to dry bulk operation which have the potential to cause accidents and occupational health. Data collection techniques are field observation, interviews and documentation. Descriptive data analysis using the HIRARC model with comparison of the effectiveness of IBPR. The results of the research show that IPBR risk control in the low risk category shows an increase in the presentation of signs of success in risk control, in this case there is an increase in the low risk category by 55%, while HIRARC risk control in the low risk category shows an increase in the presentation of signs of success in risk control. , in this case there is an increase in the low risk category by 90%, in this case it can be seen that HIRARC is more effective in controlling work risks. PPE equipment is adjusted to the type of work being carried out because there are still inconsistencies in wearing PPE. Keywords: Hazard Identification, Risk Assessment, Risk Control, HIRARC.
Rancang Bangun Monitoring Kontrol Kecepatan Putar Motor Induksi 3 Fasa Berbasis IoT Wisnu Bachtiar Fanani; Antonius Edy Kristiyono; Hadi Setiawan
Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim Vol. 4 No. 1 (2025): Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/ocean.v4i1.3175

Abstract

Along with the development of the industrial sector, companies are competing to create quality and affordable products. To support production, automation tools have emerged that help the production process so that it is faster. One of the machines that is widely used by large factories is a 3-phase induction motor. 3-phase induction motors are often used in driving equipment in industry because they have a simple construction, are relatively cheap, lightweight, have high efficiency, and are easy to maintain. This study utilizes the A3114 hall effect sensor device, PZEM-PP4T Sensor, 20x4 LCD, ESP32 module, Relay, Mitsubishi D700, MCP 4725 Sensor. The tests carried out showed that the performance of the sensor for measuring speed, voltage, and current on 3-phase motors has a high level of accuracy. Testing of motor speed shows a difference in speed value (Rpm) between the hall effect sensor and the tachometer, with an average accuracy percentage of 4,12%, indicating that the hall effect sensor has a fairly good level of accuracy. For voltage measurement, the Pzem sensor compared to the Multitester produces an average accuracy percentage of 0,90%, indicating that the pzem sensor is very reliable. Meanwhile, current testing shows a difference in value between the pzem sensor and the multitester with an average accuracy percentage of 0,98%, indicating a fairly high level of accuracy. Overall, this system can be relied on for measuring operational parameters of 3-phase motors because it has consistent and good accuracy. With this research, the 3-phase induction motor monitoring system which was originally done manually has changed to automatic and has a fairly high level of work efficiency.
Analisis Kedalaman Dermaga Menggunakan Sistem Batimetri Untuk Pemetaan Dasar Laut di PT PAL Surabaya Rizkiyono, Rico Andhika; Pratomo, Sunu Arsy; Wa' addulloh, Mu’izzaddin; Diansisti, Anisa; Hidayati, Ratna
Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim Vol. 4 No. 1 (2025): Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/ocean.v4i1.3700

Abstract

In an era of increasingly advanced technology, seabed mapping is very important in various fields, such as ship navigation, underwater infrastructure development, and marine environmental research. The use of a seabed sounding system at PT PAL has improved the quality of seabed mapping. The purpose of this study is to analyze the seabed at the PT PAL Surabaya pier in order to find out through seabed mapping using a bathymetric survey system and to find out the level of shallowing at each pier and which area is safe for ships to dock. This study uses a quantitative descriptive method. Pier sounding data using an echosounder tool at the PT. PAL Surabaya pier. The sounding data obtained starting from 2023 contains information about the depth of the pier, and will later be used to calculate Tool Correction, Fluctuation Correction, LWS (Low Water Spring) Correction, and Real Depth (actual depth). The results of the study show that based on the results of a bathymetric survey at PT. PAL in September 2023, the depth data at the West Peninsula pier is at a shallowest depth of 4 meters and the deepest is 6 meters. While the shallowest depth at the West Bandar pier is 3 meters and the deepest is 6 meters. At the North Peninsula pier the deepest depth is 8 meters marked with a solid green color. From these results it can be seen what ships can enter each particular pier area, namely ships that have a minimum draft of 2.65 m.
Analisis Efektivitas Proses Bongkar Muat Liquefied Petroleum Gas (LPG) di PT Pertamina Energi Tanjung Sekong Fitri, Nuril; Haryanto, Haryanto; Kartikawati, Marina; Kalmah, Kalmah
Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim Vol. 4 No. 1 (2025): Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/ocean.v4i1.3703

Abstract

This study aims to analyze the effectiveness of the Liquefied Petroleum Gas (LPG) loading and unloading process at PT Pertamina Energy Tanjung Sekong Terminal, a key infrastructure in Indonesia's national energy distribution. The evaluation was based on technical and operational indicators, including the Berthing Occupancy Ratio (BOR), Length Over All (LOA), berthing time, cargo volume, and vessel visit frequency. The results show that BOR ranged between 55–65%, indicating efficient jetty utilization. The average vessel LOA was 120 meters, matching the jetty’s capacity. The average berthing time was recorded at 18 hours per visit, with unloading volumes between 2,500–3,000 metric tons and vessel frequency ranging from 8 to 10 visits per month. The main constraints affecting effectiveness included extreme weather, technical equipment failures, and limited supporting facilities. This study recommends improving equipment maintenance, strengthening operational coordination, and developing a risk management system to ensure smooth and sustainable LPG handling operations at the terminal.
Menavigasi Transisi Hijau: Analisis Kualitatif Tantangan dan Dinamika Pemangku Kepentingan dalam Implementasi Green Port di Indonesia Ariadi, Tiara Sekarwati; Hagassi, Rizki; Santy, Ni Nyoman Parahita; Raharjo, Setyo Slamet; Baharudin, Irwan
Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim Vol. 4 No. 1 (2025): Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/ocean.v4i1.3709

Abstract

As global pressure for decarbonizing the maritime sector intensifies, ports worldwide, including in Indonesia, are facing demands to transform into green ports. This study aims to conduct an in-depth analysis of the multidimensional challenges and complex stakeholder dynamics in the implementation of the green port concept in Indonesia. Using a descriptive qualitative method based on a documentary study, this research integrates Stakeholder Theory and Institutional Theory to dissect the interactions among actors and the external pressures shaping sustainability strategies. The main findings indicate that the green transition in Indonesian ports is hindered by three primary challenges: (1) economic constraints related to high investment and operational costs, (2) socio-economic trade-offs that risk impeding regional economic growth, and (3) fragmented governance among government institutions. Stakeholder analysis identifies fundamental conflicts of interest among the government, port operators, the private sector, and local communities. The implication of this research is the need for a shift from showcase projects to a holistic, systemic transformation, supported by a robust multi-stakeholder governance platform and effective incentive schemes to encourage widespread adoption of green technology.

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