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Zona Laut : Jurnal Inovasi Sains dan Teknologi Kelautan
Published by Universitas Hasanuddin
ISSN : 27472124     EISSN : 27215717     DOI : 10.20956
Core Subject : Science, Engineering,
Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Energy Engineering Transportation
Dalam Pengembangan dan pengolahan SDA maritim memerlukan kerjasama multidisiplin ilmu, dimana kesemua disiplin ilmu tersebut berperan besar dalam menjadikan Indonesia sebagai poros maritim dunia. Oleh karena itu diperlukan inovasi dan sinergi untuk menghasilkan riset tentang teknologi kelautan oleh perguruan tinggi, lembaga-lembaga penelitian dan industri dapat memberikan kontribusi terhadap issue tersebut. Tujuan Zona Laut adalah sebagai wadah menyalurkan pemikiran, ide-ide cemerlang dan konstruktif komprehensif sehingga menjadi bagian usulan-usulan solusi bagi kemajuan pembangunan Sumber Daya Kelautan Indonesia. Topik-topik yang dapat diterbitkan Zona Laut ini adalah: 1. Teknologi dan Rekayasa Bangunan Lepas Pantai 2. Desain Produk Bangunan Perikanan dan Kelautan 3. Manajemen Transportasi Laut dan Aplikasi Teknologi Pelayaran 4. Energi Kelautan Terbarukan 5. Sistem dan Pengendalian Kelautan 6. Material Maju kelautan 7. Rekayasa dan Manajemen Kepelabuhanan serta Pengembangan Sumber Daya Pesisir 8. Oseanografi dan Keteknikpantaian 9. Kebencanaan Pantai dan Lingkungan Laut Jurnal ini diterbitkan oleh Departemen Teknik Kelautan, Fakultas Teknik, Universitas Hasanuddin pada bulan Maret, Juli dan Nopember setiap tahun. Naskah yang telah disetujui untuk diterbitkan telah ditinjau oleh pengulas dan abstrak bebas untuk diunduh melalui situs web kami.
Arjuna Subject : Teknik (semua kategori) - Teknik Kelautan
Articles 12 Documents
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Search results for , issue "Volume 7, Number 1, March 2026 Edition" : 12 Documents clear
ANALISIS SISTEM PENATAAN DAN LASHING MUATAN DI KAPAL RO-RO SEBAGAI UPAYA DALAM MENINGKATKAN KESELAMATAN PELAYARAN Agustiawan, Galih Sakti Cahyo Samudro Armando; Kuncowati, Kuncowati; Supangat, Supangat
Zona Laut : Jurnal Inovasi Sains Dan Teknologi Kelautan Volume 7, Number 1, March 2026 Edition
Publisher : Departemen Teknik Kelautan Universitas Hasanuddin

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Abstract

Cargo arrangement and lashing systems on Ro-Ro vessels play an important role in maintaining ship stability and navigation safety. This study aims to evaluate the effectiveness of cargo arrangement and securing practices on a RoRo vessel and to identify the factors affecting their performance. The research employed a quantitative descriptive method through direct observation, literature review, and questionnaires distributed to 10 crew members of KM Mutiara Ferindo 5. The results show that 70% of the crew had not received formal training, 40% considered the lashing process not yet in accordance with standards, and 50% stated that full lashing was only carried out during bad weather conditions. The main problems identified include the absence of written standard operating procedures, worn lashing equipment, and inconsistent supervision. This study recommends the preparation of standard operating procedures and a Cargo Securing Manual, regular technical training, and periodic inspection and renewal of lashing equipment to improve navigation safety and reduce the risk of cargo shifting.
Shoreline Change Analysis on Enggano Island Using the Digital Shoreline Analysis System (DSAS): A Case Study of Kahyapu, Kaana, and Malakoni Villages Maulidan, Arsyi Dafa; Besperi; Gunawan, Agustin; Amri, Khairul; Gunawan, Gusta
Zona Laut : Jurnal Inovasi Sains Dan Teknologi Kelautan Volume 7, Number 1, March 2026 Edition
Publisher : Departemen Teknik Kelautan Universitas Hasanuddin

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Abstract

Coastal shoreline change is a dynamic process that significantly affects coastal ecosystems and human activities. This study quantitatively analyzed shoreline changes along the coast of Enggano Island, Bengkulu Province, during the period 1993–2025, focusing on Kahyapu, Kaana, and Malakoni Villages. Shoreline extraction was performed using Landsat imagery from 1993, 2009, and 2025 after radiometric and geometric corrections, employing the Modified Normalized Difference Water Index (MNDWI) and tidal correction based on MIKE 21 modeling and bathymetric data. Shoreline change rates were calculated using the Digital Shoreline Analysis System (DSAS) with 2,052 transects at 10 m spacing and the parameters Net Shoreline Movement (NSM), End Point Rate (EPR), and Linear Regression Rate (LRR). The results indicate that shoreline retreat due to erosion dominates all study areas. During 1993–2009, average erosion rates ranged from −0.42 to −0.63 m/year and increased markedly during 2009–2025, reaching up to −1.26 m/year in Malakoni Village. Long-term trend analysis for 1993–2025 shows the highest erosion rate in Malakoni (−0.87 m/year), followed by Kaana (−0.56 m/year) and Kahyapu (−0.44 m/year). Accretion occurred only locally and at relatively low rates, insufficient to offset land loss. These findings confirm that the coastal areas of Enggano Island are highly vulnerable to continuous erosion and emphasize the need for integrated and sustainable coastal management strategies.
Design of a Modular Revetment Using Recycled Tires for Coastal Protection Mitigation at Amal Baru Beach, Tarakan Utomo, Edy; Bakri, Muhammad Djaya; Susanto, Azis
Zona Laut : Jurnal Inovasi Sains Dan Teknologi Kelautan Volume 7, Number 1, March 2026 Edition
Publisher : Departemen Teknik Kelautan Universitas Hasanuddin

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Abstract

Costal abrasion in Tarakan City requires a protection system that is not only structurally effective but also economically feasible and implementable through community-based approaches. This study aims to design a modular revetment structure using recycled tires filled with concrete and compacted sand based on a design-based analytical approach. Wave transformation analysis at a depth of -0.52 meters indicates significant wave heights ranging from 1.19 to 1.70 meters, which serve as the primary basis for stability calculations using the Hudson formula with a conservative stability coefficient 1.25. The results show that a single concrete-filled tire unit weighs approximately 285 kg, and five units are required to form the primary armor layer with a height of 1.20 meters. To achieve the design crest elevation of +1.95 meters relative to HHWL, additional secondary protection layers and a toe protection system made of quarry stones were incorporated, resulting in a total structural height of 2.40 meters. Sensitivity analysis indicates that variations in significant wave height strongly influence the required weight of armor, whereas changes in material density produce more moderate effects. Compared with conventional stone revetments, the modular tire system offers greater flexibility, ease of installation without heavy equipment, and supports circular-economy principles through the reuse of waste tires. The implementation plan adopts a participatory appriach by engaging local fishermen and coastal communities in material collection, assembly, and maintenance activities. This study provides a sustainable, low-cost, and adaptive alternative for coastal protection that can be replicated in other shoreline areas with similar environment conditions.
Comparison of Resistance Values for Various Patrol Vessel Step Hull Geometry Variations Using Computational Fluid Dynamics (CFD) Hardiyanti, Fitri; Prasetyo Utomo, Agung; Rahagi, Athallah Bintang; Wibawa, I Putu Arta; Cahyaningati, Desi Tri; Wahidin, Aang; Miftachuddin
Zona Laut : Jurnal Inovasi Sains Dan Teknologi Kelautan Volume 7, Number 1, March 2026 Edition
Publisher : Departemen Teknik Kelautan Universitas Hasanuddin

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Abstract

-Abstract This study investigates the effect of stepped hull geometry variations on the hydrodynamic resistance of a patrol vessel operating in Morowali waters. Computational Fluid Dynamics (CFD) simulations were conducted to evaluate the resistance performance of an existing hull and eight stepped hull configurations at an operating speed of 30 knots. The parameters investigated include step spacing, spray strip angle, and spray strip configuration. The results demonstrate that the application of stepped hull geometry generally reduces total resistance compared to the baseline hull. The optimal configuration, Model S3 with a 1.0 m step spacing and a 60° spray angle, achieved the lowest resistance of 28,384.1 N, corresponding to a reduction of 7.34%. From an engineering perspective, this reduction is significant, as lower resistance directly contributes to improved fuel efficiency, extended operational range, and enhanced endurance of patrol vessels during maritime surveillance operations.
Accumulation, Composition, Density, and Volume of Marine Litter on Palu Bay Hermawan, Roni; Hasanah, Nur; Nurdin, Muhamad Saleh; Eka Putra, Aswad; Tis'in, Musayyadah; Riza, Femi; Mangintung, Septina Fifi; Rukka, Andi Heryanti; Purwanto, Eko; Ramadhani, Nurul Rizki; Nursalwa, Nursalwa; Darae, Charlos Daniel; Utama, Fitra Harry
Zona Laut : Jurnal Inovasi Sains Dan Teknologi Kelautan Volume 7, Number 1, March 2026 Edition
Publisher : Departemen Teknik Kelautan Universitas Hasanuddin

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Abstract

Marine litter poses an increasing threat to the coastal ecosystem of Palu Bay, Indonesia, driven by contrasting land-based human activities. This study assessed the accumulation, composition, density, and volume of macro-debris (>2.5 cm) at four coastal stations representing residential, river-influenced, and tourism-dominated areas. Surveys were conducted from June to September 2025 using a line transect method. The results showed marked spatial differences in marine litter characteristics. Residential and river-influenced sites (Baiya and Mamboro Beaches) recorded the highest debris weights (4003.67–4378.22 g/m²), dominated by heavier household waste transported via river systems. In contrast, tourism areas (Taman Ria and Kampung Nelayan Beaches) exhibited lower debris weights (1697.67–1892.37 g/m²) but significantly higher item densities (14.46–17.28 items/m²) and volumes, reflecting the dominance of lightweight, single-use plastics from recreational activities. Plastic debris dominated all stations, exceeding 94% in tourism zones. These findings demonstrate a clear dichotomy in litter sources and characteristics between tourism and residential areas, underscoring the need for targeted management strategies. Effective mitigation should prioritize single-use plastic restrictions, adequate waste facilities, and visitor awareness in tourism areas, alongside improved household waste collection and riverine waste control in residential watersheds. Such source-specific approaches are essential for sustainable coastal management in Palu Bay and comparable semi-enclosed bays.
Analisis Risiko Keselamatan Proses Berlabuh Kapal RoRo Tipe LCT Menggunakan Metode FMEA dan Fuzzy FMEA Koyyimah, Putri Dinul; Putri, Destyariani Liana; Sudarni, Adiek Astika Clara
Zona Laut : Jurnal Inovasi Sains Dan Teknologi Kelautan Volume 7, Number 1, March 2026 Edition
Publisher : Departemen Teknik Kelautan Universitas Hasanuddin

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Abstract

The berthing process of Roll-on/Roll-off (RoRo) vessels of the Landing Craft Tank (LCT) type at Company X presents significant operational risks. This study analyzes safety risks using the Failure Mode and Effects Analysis (FMEA) and fuzzy FMEA methods. The highest RPN values from FMEA were found in ramp door placement (RPN = 50), safety cone installation (RPN = 48), and vehicle access (RPN = 45). Fuzzy FMEA identified ramp door risk (D20) as the top priority with FPRN = 134. Risk controls were proposed using the hierarchy of controls. Data were gathered from observations, interviews, and questionnaires with nine respondents. The integrated approach provided a more objective and practical risk analysis.
Analysis of Work Accident Potential Using the Hazard Analysis and Operability Study (HAZOP) Method in Bulk Cargo Loading and Unloading Processes Nur Hasanah, Mustika; Sade, Juwan
Zona Laut : Jurnal Inovasi Sains Dan Teknologi Kelautan Volume 7, Number 1, March 2026 Edition
Publisher : Departemen Teknik Kelautan Universitas Hasanuddin

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Abstract

The bulk cargo loading and unloading process is an important part of sea and port transportation. Bulk cargo such as fertilizers, kernels, and wheat has a high risk that can endanger workers and the environment, so identification and analysis of potential hazards is needed at every stage of operation to maintain the safety and smooth loading and unloading process. This research aims to identify potential hazards that occur, provide an assessment of the risk level, and provide solutions for actions or improvements to potential risks that can occur during the process of loading and unloading fertilizer bulk cargo at Makassar Port. This research can contribute to encouraging increased compliance of Makassar Port employees to the implementation of K3 management, which not only protects personal safety, but also supports performance improvement and this research also enriches the author's knowledge through empirical experience, addition of scientific references, and the application of concepts that have been obtained during lectures. Analysis of potential occupational safety risks in the loading and unloading of bulk fertilizer cargo activities using the Hazard and Operability Study (HAZOP) method. To analyze it, it requires a literature study, data collection in the form of observations, interviews, and questionnaires, then identifying/formulating problems with the level of hazard/risk of work accidents, then classifying the risk matrix and providing solutions for corrective actions from the potential risk of occupational accident hazards. The analysis of the highest risk level was obtained in loading and unloading operations at the port and in the warehouse area which then became a reference for designing appropriate corrective action solutions so that the level of occupational safety risks at the Port of Makassar could be reduced, thereby creating a safer, more efficient, and productive work environment for all parties involved in bulk fertilizer cargo loading and unloading activities. The results obtained are how much potential danger is obtained, an assessment of likelihood, consequence, and severity in order to determine the level of low, medium, high, and extreme risk and provide the best solution in taking more targeted preventive measures.
Analysis of Paint Material Requirements and Repair Costs for the KMP Balibo Ferry Haslindah, Nurul; Sade, Juswan
Zona Laut : Jurnal Inovasi Sains Dan Teknologi Kelautan Volume 7, Number 1, March 2026 Edition
Publisher : Departemen Teknik Kelautan Universitas Hasanuddin

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Abstract

The shipping industry is a crucial sector supporting maritime transportation in Indonesia, making ship maintenance and repair a vital requirement to ensure operational safety and efficiency. Painting is a crucial aspect of repair, protecting the ship's structure from corrosion while simultaneously reducing operational costs. This study aims to analyze the paint material requirements and painting costs for the KMP. Balibo ferry using the Just In Time (JIT) approach. This study provides a comprehensive overview of the calculation of material requirements and painting costs for the ship, while also offering a more effective inventory management strategy for the Indonesian shipbuilding industry. The primary data used include ship specifications, paint coating types, and material prices from official references. The analysis method is carried out by calculating the painting area, paint volume requirements, thinner, and material cost estimates based on the Dry Film Thickness, Solid Volume, Theoretical Spreading Rate, and paint loss factors. The results show that the total paint and thinner requirements can be estimated accurately, with a total cost of Rp 310.000.000. The implementation of the Just In Time (JIT) method results in more efficient material delivery planning, reduces potential waste, and accelerates the repair process.
in EVALUASI RISIKO KEHILANGAN ENERGI PADA BENGKEL FABRIKASI MENGGUNAKAN METODE BAYESIAN NETWORK Ridwan Efendy , Muhammad; Baroroh, Intan; Kristiyono, Tri Agung
Zona Laut : Jurnal Inovasi Sains Dan Teknologi Kelautan Volume 7, Number 1, March 2026 Edition
Publisher : Departemen Teknik Kelautan Universitas Hasanuddin

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This study aims to analyze the risk of energy loss in ship fabrication processes at PT DUMAS Shipyard Surabaya using a Bayesian Network modeling approach. Energy losses were identified across six key processes: Sandblasting, Painting, Cutting, Forming, Welding, and Lifting Equipment (cranes, hoists, and forklifts). The Bayesian method was employed to model the probabilistic relationships among causal variables, including air pressure, cooling system performance, machine idle time, equipment condition, and operator behavior, all of which contribute to potential energy loss. Risk assessment was conducted by calculating likelihood and consequence values based on the AS/NZS 4360:2004 standard to determine the level of energy-related risk in each process. The results indicate that the Welding process has the highest probability of energy loss at 0.25 and is classified as a High Risk. Cutting, Sandblasting, and Painting fall under the Moderate Risk category, while Forming and Lifting Equipment are categorized as Low Risk. Recommended mitigation strategies include implementing automatic control systems for key equipment, enhancing operator training, and optimizing pneumatic and cooling systems. The energy risk evaluation serves as a basis for improving efficiency within the fabrication processes.
Comparative Analysis of Mooring System Performance with Variations in 4,6, and 8 Point Configurations on Accommodation Work Barges Alan Nurdiansyah; Fadillah, Arif
Zona Laut : Jurnal Inovasi Sains Dan Teknologi Kelautan Volume 7, Number 1, March 2026 Edition
Publisher : Departemen Teknik Kelautan Universitas Hasanuddin

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Abstract

In the maritime industry, an effective mooring system is essential to ensure the stability and safety of offshore operations. A mooring system is a collection of equipment and techniques used to maintain the position and stability of a structure at sea or on an accommodation work barge. In practice, there are still various challenges and problems in the use of mooring systems on accommodation work barges. Factors such as weather conditions, sea depth, and the type of anchor used must be considered. This study will focus on analyzing the factors that affect the mooring system, analyzing the ship's RAO, and evaluating the weight of the anchor and tension wire. This study aims to produce recommendations for the best mooring system and configuration based on four types of seabed. The analysis was carried out using Ansys AQWA software and criteria set by ABS, DNV, and API. The factor that most influences the tension wire is the environmental load received by the ship (currents, waves, wind). Differences in environmental loads will also result in different tension values. In holding power analysis, mud seabeds produce the lowest holding power, while rock seabeds produce the highest holding power but are difficult to anchor. The 8 mooring system configuration is suitable for floating hotel operations because it has a good motion response, while 6 mooring is recommended for well intervention work because it is more efficient during the work process. The best anchor placement is located at 45° - 60° from the ship's centerline because it has an even load distribution.

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