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M. Uswah Pawara
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Gedung B306. Jl. Soekarno Hatta No.KM 15, Karang Joang, Kec. Balikpapan Utara, Kota Balikpapan, Kalimantan Timur 76127
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Kota balikpapan,
Kalimantan timur
INDONESIA
Indonesian Journal of Maritime Technology or abbreviated (ISMATECH)
Published by Institut Teknologi Kalimantan
ISSN : -     EISSN : 3025518X     DOI : https://doi.org/10.35718/ismatech.v1i1
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation
Focus and Scope Research titles encompassed by this journal include, but are not limited to: Naval Architecture: covering ship strength, Ship Hydrodynamics, Ship Construction, Ship Production Management, Wooden and FRP Ship Materials, Ship Design Innovation, Ship Vibration and Noise, Welding Technology, Fatigue, Sea Transportation, Computational Fluid Dynamic Modeling. Marine Engineering: encompassing Engine Performance, Renewable Fuels, Dual fuel system, Ship electricity, Ship Resistance, Ship piping systems, Ship reliability). Ocean engineering: Marine and Offshore Structures, Coastal Structures and Management, Port Structures and Management, Subsea Umbilicals, Risers and Flowlines (SURF), Ocean Renewable Energy, Marine Instrumentation, Marine Pollution. Mechanical engineering: addressing Tribology, Energy Studies, Engines and Turbines, Heat Transfer, Fluid Mechanics, Lubrication and Wear, Materials Science, Mechatronics, Refrigeration and air conditioning, Pressure analysis, Structural and mechanical design, Renewable energy, Structural mechanics, Thermodynamics, Materials processing, Vibration).
Arjuna Subject : Teknik (semua kategori) - Teknik Kelautan
Articles 41 Documents
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CFD-Preliminary Design and Stability Analysis of a High-Speed Firefighting Boat for Remote Island Waterways Wirawan, Moh.Winki; Oloan, Achdri Fauzi Nugraha; Subakti, Albert Gabriel; Batosai, Joan Rike
Indonesian Journal of Maritime Technology Vol. 2 No. 2 (2024): Volume 2 Issue 2, December 2024
Publisher : Naval Architecture Department, Kalimantan Institut of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/ismatech.v2i2.1228

Abstract

The Seribu Islands, administered by the DKI Jakarta Provincial Government, cover an area of 4,745.62 km², with 8.76 km² of land spread across two sub-districts and six major islands: Kelapa, Harapan, Panggang, Tidung, Pari, and Untung Jawa. While these islands are popular tourist destinations with adequate transport facilities, the remote, water-surrounded nature of the area poses challenges for emergency response, particularly firefighting. To address this, the authors designed a firefighting vessel optimized for quick deployment and effective fire suppression. The design process focused on determining optimal dimensions and minimizing hydrodynamic resistance through hull variation using effect of length on resistance method, followed by exponential regression. The vessel’s main dimensions are LOA 16.5 m, LPP 15.588 m, beam 4.9 m, depth 2.5 m, draft 0.9 m, and a top speed of 36 knots. Four hull configurations with varying chine type and angles (0°, 10°, and 17°) were simulated in Numeca Fine Marine (CFD) and Maxsurf. The third hull variation achieved the lowest resistance, with a resistance value of 67.12 kN. Equipped with a pump capacity of 474 m³/h and a spray range of 25 m, the vessel provides effective firefighting capabilities. Stability analysis, including fire monitor placement variations, indicates the optimal trim and stability with a Max GZ angle of 50° and a roll period of 3.14 seconds. This design demonstrates a feasible solution for firefighting within the Seribu Islands’ unique aquatic environment.
Rubber Tyred Gantry (RTG) Failure Analysis Using FMEA Method at PT. Kaltim Kariangau Terminal Balikpapan Fitriah, Rifkah; Andi Ningrat; Dwi Wahyuni Rahman; Andi Rachmianty AM; Muslihati; Wardina Suwedy
Indonesian Journal of Maritime Technology Vol. 2 No. 2 (2024): Volume 2 Issue 2, December 2024
Publisher : Naval Architecture Department, Kalimantan Institut of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/ismatech.v2i2.1261

Abstract

Failure Mode and Effect Analysis (FMEA) is a method designed to evaluate system designs by identifying various failure modes of a system, which consists of multiple components, and analyzing their impacts on the system's reliability. The primary goal of FMEA is to identify and address key issues at every stage of the design and production process to prevent defective products from reaching customers, thereby safeguarding the company’s reputation. This study aims to identify the types of damage occurring in Kalmar-brand Rubber Tyred Gantry (RTG) equipment at PT. Kaltim Kariangau Terminal Balikpapan and analyze these failures using the FMEA method. Data collection was conducted through field observations, interviews, and documentation. The FMEA calculations also include repair recommendations for each identified failure. Based on the analysis, several failures were found to rank highest in severity for each piece of equipment. For RTG 07, the most critical failure was the "Trouble Hoist," requiring corrective actions such as repairs to the motor system, brakes, and gearbox.
The Analysis of Work Accident Risk in Welding Process for Pipe Repair on Utility Boat PT LSM Rachmianty, Andi; Pragawati, Ni Gusti Ayu Putu Dewi Armay; Ningrat, Andi; Usman, Arif Fudddin; Rusnaedi; Shauqy, Muhammad Azhar
Indonesian Journal of Maritime Technology Vol. 2 No. 2 (2024): Volume 2 Issue 2, December 2024
Publisher : Naval Architecture Department, Kalimantan Institut of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/ismatech.v2i2.1263

Abstract

PT LSM is a shipping company committed to focusing on providing integrated maritime services to support the oil & gas industry, PT LSM has a variety of offshore vessels to support these activities. LSM's shipping area is a rig area, where the area has a high level of danger and risk, therefore an adequate ship is needed both in crew and equipment on board. Especially in the piping system on board, if a leak occurs it can cause fatal things such as engine damage to an explosion and can cause work accidents such as fire and death. To minimize work accidents, risk hazard identification and risk control are made in each job, especially in piping work, namely pipe welding using the HIRADC method. This study used a descriptive qualitative method, in which the authors conducted field observations, interviews, and distributed questionnaires. The results of risk hazard identification, risk assessment and risk control will be entered in the HIRADC (Hazard Identification, Risk Assessment, and Determining Control) table. The conclusion of this study is that 43 hazards and 47 risks have been identified in pipe welding work. In the initial control, the low risk level was 42 risks (89.36%), the medium risk level was 5 risks (10.63%), and the high-risk level was 0 risks (0%). After further control of the identified risks, the risk level of medium risk (10.63%) has changed to low risk, so that all risk levels of the LSM Provider's ship pipe welding work have changed to a low risk level with a total of 47 risks (100%)). The controls used in pipe welding work are substitution, administration, and personal protective equipment (PPE).
Optimizing Container Crane Performance: Enhancing Loading and Unloading Productivity at PT. Kaltim Kariangau Terminal Ningrat, Andi; Tahir, Anwar; Rusnaedi; Reskyani; Muslihati
Indonesian Journal of Maritime Technology Vol. 2 No. 2 (2024): Volume 2 Issue 2, December 2024
Publisher : Naval Architecture Department, Kalimantan Institut of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/ismatech.v2i2.1264

Abstract

Container terminals are critical nodes in global trade, where productivity hinges on the efficiency of handling equipment like container cranes. At PT. Kaltim Kariangau, a terminal jointly managed by PT. Pelindo and the East Kalimantan provincial government, operational challenges persist despite infrastructure enhancements. In 2023, an additional crane was introduced to the terminal, increasing the total to three. However, issues such as prolonged idle times and equipment malfunctions adversely impacted crane efficiency. This research evaluates crane performance using BCH (Box/Crane/Hour) and BSH (Box/Ship/Hour) metrics to assess their effect on loading and unloading productivity. The analysis reveals that in 2023, the average crane performance was 27 boxes/hour, a level classified as good. Paradoxically, overall productivity declined post-crane addition compared to prior operations. Using regression analysis, the study identifies a strong positive correlation (R = 0.7316) between crane performance and terminal productivity, with a coefficient of determination (R²) indicating that crane efficiency accounts for 54% of productivity variations. The findings highlight that improved crane performance directly enhances operational output, where each unit increase in BCH corresponds to a 1.809-unit rise in productivity. Hypothesis testing confirms that crane performance significantly influences loading and unloading efficiency. These results underscore the need for effective equipment utilization and maintenance strategies to optimize terminal operations. The research concludes that while infrastructure upgrades are essential, addressing operational inefficiencies is critical to achieving sustainable productivity improvements.
Vehicle Loading and Unloading Activities at MV Aishakamilah, Hazard Identification, Risk Assessment and Risk Control Usman, Arif Fuddin; Asmarita, Sri; Murtafiah, Andi; Ningrat, Andi; Sudarman
Indonesian Journal of Maritime Technology Vol. 2 No. 2 (2024): Volume 2 Issue 2, December 2024
Publisher : Naval Architecture Department, Kalimantan Institut of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/ismatech.v2i2.1267

Abstract

This research is to determine risk control from the results of identifying hazards that are likely to occur in loading and unloading activities on the MV. Aishakamila. The informans in this study were operational workers and crew of Kalla Lines at the port totaling 20 people with the Purposive Sampling technique. The results of this study found that the identified hazards in the loading and unloading process at PT. Bumi Lintas Tama, there were 21 identified hazards. The results of the risk assessment obtained from the 21 identified hazards from the loading and unloading process activities on the MV. Aishakamilah at the PT. Bumi Lintas Tama Car Terminal, there were results from the risk level after control was carried out, namely the High Risk level of 0 risks, the Moderate Risk level of 3 and the Low Risk level of 18 risks. From the observations conducted by researchers in the field, the loading and unloading activities on the MV. Aishakamila have 4 risk control hierarchies applied. The risk controls applied are substitution, engineering, administration, and personal protective equipment. From the results of the study, a way to reduce the level of risk of danger in vehicle loading and unloading operations on the MV. Aishakamilah is obtained by conducting a briefing before carrying out loading and unloading activities and always paying attention to PPE in working and paying attention to applicable SOPs
CAD Technology Workshop with the Pierre Bougher Approach in Building Traditional Wooden Ships at Kelompok Usaha Bersama (KUB) Nenang Berlayar North Penajam Paser Hariyono, Hariyono; Ikhwani, Rodlian Jamal; Sitorus, Chris Jeremy Verian; Kustiwansa, Harlian
Indonesian Journal of Maritime Technology Vol. 2 No. 2 (2024): Volume 2 Issue 2, December 2024
Publisher : Naval Architecture Department, Kalimantan Institut of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/ismatech.v2i2.1279

Abstract

Program in the form of a CAD Technology Workshop using the Pierre Bouguer approach aims to improve the skills of traditional wooden ship craftsmen in the Kelompok Usaha Bersama (KUB) Nenang Berlayar, Penajam Paser Utara. This activity introduces Computer-Aided Design (CAD) technology as a modern solution to increase the precision, efficiency and quality of wooden ship designs without eliminating traditional values. Pierre Bouguer's approach which focuses on the stability and balance of the ship through drawing lines plans was applied to produce a better design from a technical and safety perspective. Implementation methods include intensive training, technical assistance, and ongoing evaluation, supported by lecturers and students from the Kalimantan Institute of Technology (ITK). The results of the activity showed a significant increase in craftsmen's understanding and ability to use CAD, as seen from the post-test results of participants who achieved an application level above 90%. This program not only helps craftsmen adopt modern technology but also creates a sustainable learning ecosystem through an online-based community. It is hoped that the application of CAD technology can encourage innovation in traditional wooden shipbuilding, increase competitiveness, and provide added economic value for craftsmen amidst the challenges of modernizing the maritime industry.
Fishing Vessel Position Monitoring System Based on the Internet of Things (IoT) Yusuf, Andi Jaya Wardanah; Mahmuddin, Faisal; Shintarahayu, Balqis; Budiman, Budiman
Indonesian Journal of Maritime Technology Vol. 3 No. 1 (2025): Volume 3 Issue 1, June 2025
Publisher : Naval Architecture Department, Kalimantan Institut of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/ismatech.v3i1.1197

Abstract

The life of traditional fishermen in Indonesia is closely related to the sea. Coastal communities rely on marine products as a source of daily livelihood. However, in recent years, many traditional fishermen have disappeared at sea. Based on those problems, it is necessary to create a tool in an effort to develop security for fishermen in the form of a position monitoring system that is able to reduce the risk of fishermen disappearing in the middle of the sea by using a better and more practical system. This research developed a system for monitoring the position of fishing vessels using an Arduino microcontroller. Based on the results of testing and analysis in this research, it is known that the position monitoring system on fishing vessels uses a NodeMcu LoLin V3 type microcontroller as a data processor and GPS Ublox Neo-6M as a sensor which functions to send location points on a fishing vessel. The coordinates of the location of the fishing vessel are then displayed on the smartphone via the Blynk application. So when the tracking tool is connected to the internet, the average difference in distance precision between the Ublox Neo 6M GPS and Google Maps is 2.3 meters. For input speed from NodeMcu LoLin v3 and GPS Ublox Neo 6M to the Blynk application displayed on the smartphone. Monitoring for 40 seconds showed that the data speed displayed was one location data per second. From the results of the tests carried out, this tool can work well and can be used to monitor fishing vessels continuously.
Optimizing Generator Power Usage Through LED Lighting Distribution on Tugboats: A Case Study of a 26.80-Meter Vessel Suardi, Suardi; Pratama, Brian Yoga; Pawara, M Uswah; Yosefan, Andreyano; Anugerah, Andi Nurwahid; Abdurrahman, Luthfi; Tasrief, Muhdar; Klara, Syerly
Indonesian Journal of Maritime Technology Vol. 3 No. 1 (2025): Volume 3 Issue 1, June 2025
Publisher : Naval Architecture Department, Kalimantan Institut of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/ismatech.v3i1.1285

Abstract

The 26.80 meter long tugboat plays a critical role in Indonesia’s maritime operations, particularly in towing and maneuvering vessels between Semayang Port and open sea areas. As part of its operational infrastructure, the vessel relies on fluorescent lighting systems, which are known to be less energy efficient and less durable than modern lighting technologies. This presents a significant operational challenge, particularly in light of rising fuel costs and the global shift toward more sustainable maritime practices. This study addresses the issue of inefficient energy use in onboard lighting systems by evaluating the performance of conventional fluorescent lamps compared to Light Emitting Diode (LED) lighting on tugboats. The objective is to assess and compare both lighting types in terms of energy consumption, lighting uniformity, and compliance with international lighting standards set by classification societies. The research adopts the Zonal Cavity Method (ZCM), which involves dividing the interior of the tugboat into three lighting analysis zones: the High-Ceiling Cavity (HCC), High-Rise Cavity (HRC), and High-Floor Cavity (HFC). Each zone was analyzed to determine the required illumination levels based on standardized guidelines, enabling a systematic comparison of lighting performance between the two technologies. Results indicate that LED lighting systems outperform fluorescent lighting in all evaluated aspects. LEDs provided significantly higher energy efficiency and more uniform lighting distribution across all zones of the tugboat. Additionally, LED systems demonstrated better compliance with minimum illumination levels as outlined in international maritime lighting standards. The study concludes that implementing LED lighting can lead to substantial improvements in shipboard energy efficiency, reduced generator load, lower operational costs, and improved environmental sustainability. These findings suggest that maritime operators should consider transitioning to LED systems as a long-term solution for enhancing energy performance. Future research is recommended to explore the integration of LED systems with renewable power sources such as solar energy, and to evaluate the long-term economic and maintenance benefits across different vessel types and operational profiles.
Determination of Electrical Power for Lighting Distribution Using LED Lights on KM. Tuna Kita Suardi, Suardi; Sitorus, Chris Jeremy Verian; Kustiwansa, Harlian; Arifuddin, Andi Mursid Nugraha; Pawara, Muhammad Uswah; Hariyono, Hariyono; Alamsyah, Alamsyah; Cahyani, Alviana Eka; Mubarak, Azhar Aras; Lumenteri, Fido Fortunatus
Indonesian Journal of Maritime Technology Vol. 3 No. 1 (2025): Volume 3 Issue 1, June 2025
Publisher : Naval Architecture Department, Kalimantan Institut of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/ismatech.v3i1.1287

Abstract

Fishing vessels are specialized ships designed to support commercial fishing operations by integrating various structural and functional elements such as hull dimensions, deck layout, load capacity, crew accommodations, propulsion systems, and supporting equipment. One critical yet often overlooked component of such vessels is the lighting system, which plays a key role not only in ensuring operational safety and visibility but also in enhancing fishing effectiveness, particularly during night operations. Currently, many fishing vessels still rely on conventional fluorescent lighting, which is less energy-efficient and has a shorter operational life compared to modern alternatives such as LED technology. This study addresses the inadequacy of current lighting installations on fishing vessels by proposing a redesigned electrical installation system utilizing LED lamps. The objective is to develop an efficient and functionally optimized lighting plan that reduces energy consumption and operational costs while improving onboard visibility. Additionally, LED lights can serve dual purposes on fishing vessels—not only for general illumination but also as fish-attracting lights, which may contribute to increased catch yields. The research employs the Zonal Cavity Method (also known as the Lumen Method) as the primary analytical approach. This method enables the calculation of illumination levels by considering inter-surface reflectance and dividing each interior space into three distinct zones: the High Ceiling Cavity (HCC), High Room Cavity (HRC), and High Floor Cavity (HFC). Illumination levels are then determined according to established lighting standards for each functional area within the vessel. The results of the analysis demonstrate that LED-based lighting systems significantly outperform fluorescent systems in terms of energy efficiency, uniformity of light distribution, and alignment with lighting standards. Furthermore, the proposed installation plan offers long-term operational benefits, including reduced maintenance requirements and lower power consumption. The findings support the broader adoption of LED lighting in small-scale fishing vessels and suggest further research into integrating solar-based energy systems to enhance sustainability and self-sufficiency in future vessel designs.
Network Planning Analysis on Loading and Unloading of the MV Future Ocean 14,514 DWT at Semayang Port Putri, Destyariani; Mahendra, Arya Putra; Wirawan, Muhammad Khaisar
Indonesian Journal of Maritime Technology Vol. 3 No. 1 (2025): Volume 3 Issue 1, June 2025
Publisher : Naval Architecture Department, Kalimantan Institut of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/ismatech.v3i1.1319

Abstract

The process of loading and unloading ships is a critical activity in the logistics chain that impacts the efficiency and operational costs of ports. This study aims to evaluate the use of Network Planning methods in planning and controlling the time of the ship loading and unloading process. The research was conducted using historical data on the loading and unloading times of ships, as well as related activity schedules at Semayang Port, Balikpapan. This study adopts an approach by analyzing the application of network planning on the unloading process of the MV Future Ocean 14,514 DWT ship in the form of an S-Curve, then analyzing alternative critical paths along with duration acceleration using the Critical Path Method (CPM) and Program Evaluation and Review Technique (PERT) on days (conditions) with better work weight consistency. Additionally, it analyzes how this affects manpower and manhour efficiency. The results of this study indicate that the application of the CPM and PERT methods led to a reduction in job duration from 1.408 minutes to 1.227 minutes using CPM, and 1.224,67 minutes using PERT. Based on the duration acceleration, the need for additional manpower increased from 21 to 24, resulting in a -14% decrease in manpower efficiency. The total manhour value changed from 3.941,28 MH to 3.936 MH with a 0,13% increase in manhour efficiency for CPM, and 3.916,8 MH with a 0,62% increase in manhour efficiency for PERT.

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