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All Journal International Journal of Recent Technology and Applied Science (IJORTAS) Kalao’s Maritime Journal International Journal of Mechanical, Electrical and Civil Engineering International Journal of Mechanical, Industrial and Control Systems Engineering Pemberdayaan Masyarakat: Jurnal Aksi Sosial Prosiding Seminar Nasional Ilmu Teknik
Dedtri Anwar
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Transportation

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Perawatan Pompa Ballast Guna Menunjang Kelancaran Operasional di Kapal MT. Layar Arthawibawa Vinceciius Ari Setyawan; Dedtri Anwar; Fajar Sutopo
KALAO'S MARITIME JOURNAL Vol 5 No 1 (2024): Juli : Kalao’s Maritime Journal
Publisher : Politeknik Pelayaran Sulawesi Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69754/kalaos.v5i1.86

Abstract

In the use of sea transportation, the good condition of the ship has a great influence on the process of ship operation. Its very important because ballast pumps on ships are one of the service systems on ships that are used to dispose of and fill ballast water. The ballast pump system is intended to adjust the level of tilt and draft of the vessel, as a result of changes in load ship so that the stability of the ship can be maintained and to reduce the swaying of the ship caused by waves or large enough squares. As well as the efforts that must be made to maximize on board even what influence is caused by no maintenance on board. The data sources obtained are data obtained directly from the research location by means of observation methods and with qualitative data. The results of the study have shown that many factors cause less optimal ballast pump maintenance Efforts must be made so that ballast pump maintenance is optimal in MT. Layar Arthawibawa is to implement PMS regularly, and there must be a sense of responsibility to all crew members and support from the company itself.
Analysis of the Application of Additive Manufacturing for On-Demand Repair and Maintenance of Naval Equipment in Remote Maritime Operations Yustiani Frastika; Frisca Mareyta Pongoh; Dedtri Anwar; Arika Palapa; Jaya Alamsya
International Journal of Mechanical, Industrial and Control Systems Engineering Vol. 2 No. 3 (2025): September :IJMICSE: International Journal of Mechanical, Industrial and Control
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/ijmicse.v2i1.255

Abstract

Background: Traditional naval maintenance strategies rely on centralized supply chains and pre-manufactured spare parts, leading to long repair downtimes and logistical inefficiencies, particularly for vessels operating in remote maritime regions. Additive manufacturing (3D printing) offers a disruptive alternative by enabling on-demand production of spare parts, reducing dependence on external suppliers, and enhancing fleet self-sufficiency. However, material durability, operational feasibility, and cost-effectiveness remain underexplored for naval applications. Original Value: This research advances the study of AM in naval engineering, assessing its practical viability beyond theoretical potential. Unlike previous studies focusing on commercial maritime applications, this study evaluates 3D printing’s impact on naval fleet readiness, supply chain resilience, and sustainability. Objectives: The study investigates how 3D printing can optimize naval maintenance efficiency, specifically analyzing its feasibility, material performance, cost implications, and logistical advantages. Methodology: A qualitative-empirical approach was used, combining material performance testing, expert interviews, and operational case studies to evaluate mechanical durability, economic feasibility, and AM integration challenges. Results: Findings indicate that AM reduces repair downtime by 40%, lowers part procurement costs by 30–50%, and enhances supply chain resilience. However, material limitations and infrastructure readiness remain key adoption challenges. Conclusions: Hybrid AM adoption—where 3D printing supplements rather than replaces traditional manufacturing—offers the most practical near-term approach for naval fleets. Strategic investment in material research, onboard AM training, and fabrication infrastructure will enhance fleet efficiency, reduce environmental impact, and future-proof maritime maintenance strategies.
Optimalisasi Kinerja Fresh Water Generator dalam Meningkatkan Destilasi di Kapal MT.Pangalengan Komang Vivi Gayatri; Iksan Saifudin; Kris Wanto; Dedtri Anwar; Aris Jamaan
KALAO'S MARITIME JOURNAL Vol 5 No 2 (2024): Desember : Kalao’s Maritime Journal
Publisher : Politeknik Pelayaran Sulawesi Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69754/kalaos.v5i2.119

Abstract

This machine Fresh Water Generator has The role is very important in the smooth operation of ships, where in the operation of ships insep``arable from the need for fresh water. This research aims to be able to find out the causes, impacts, and efforts that occur in fresh water generators so that they can increase the production of fresh water on board. The type of method used in this study is to use qualitative method , namely research that aims to solve the actual problems faced an collect data or information to be compiled,analyzed and analyzed later. Problems that often occure in Fresh Water Generator are the incompatibility of fresh air and sea air in each pipe,the temperature of fresh air and sea air which is not suitable before and after passing through a Fresh Water Generator, and the movement or water attached to the surface of the plate both in the evaporator and condenser arising from evaporation in the evaporator and condensation on the condenser.
Implementation of IoT-Based Remote Monitoring for Naval Electrical Systems : Enhancing Reliability and Reducing Maintenance Costs Kris Wanto; Dedtri Anwar; Jeihn Novita C. Budiman; Santun Irawan; Jaya Alamsyah
International Journal of Mechanical, Electrical and Civil Engineering Vol. 2 No. 2 (2025): April : International Journal of Mechanical, Electrical and Civil Engineering
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/ijmecie.v2i2.257

Abstract

The increasing complexity of naval electrical systems and the demand for higher operational reliability necessitate a shift from traditional maintenance methods to data-driven predictive maintenance solutions. This research examines the effectiveness of IoT-based remote monitoring and diagnostic systems in improving system reliability, cost-efficiency, and operational sustainability in naval engineering. A qualitative-empirical approach was applied, utilizing expert interviews, structured surveys, and field observations to assess the impact of IoT-driven predictive maintenance. The findings indicate a significant reduction in system failures (92/100), maintenance costs (89/100), and operational downtime, demonstrating the effectiveness of real-time fault detection and automated diagnostics. Additionally, the study identifies challenges in infrastructure readiness (78/100) and cybersecurity concerns (82/100), which must be addressed for large-scale implementation. While the adoption rate (88/100) reflects strong industry support, skill readiness gaps (80/100) suggest a need for enhanced technical training in maritime education. The research concludes that IoT-based predictive maintenance offers a transformative approach to naval maintenance strategies, ensuring sustainability, efficiency, and enhanced fleet readiness in modern maritime operations.
The Importance of Maintaining Fishing Boats and Understanding Life Safety at Sea for Fishermen in East Sapa Village Dedtri Anwar; Frisca Mareyta Pongoh; Yustiani Frastika; Santun Irawan; Joseph R Rengga
Pemberdayaan Masyarakat : Jurnal Aksi Sosial Vol. 1 No. 1 (2024): Maret : Pemberdayaan Masyarakat: Jurnal Aksi Sosial
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/aksisosial.v1i2.456

Abstract

The importance of fishing boat maintenance cannot be underestimated. A well-maintained vessel not only increases efficiency in fishing operations, but also minimizes the risk of accidents at sea. Ship maintenance covers various aspects, from regular engine inspections, repairing damaged hulls, to ensuring that all safety equipment is in good condition. The purpose of this study is to increase the awareness and understanding of fishermen in East Sapa Village regarding the importance of ship maintenance and life safety at sea. This research method uses a qualitative method with a short description of the analysis. The results of this study show that although the fishermen of East Sapa Village have a basic awareness of the importance of boat maintenance and safety at sea, they face a variety of significant challenges, including limited resources, limited technical knowledge, and lack of relevant training. Financial and material constraints hinder the implementation of thorough ship maintenance, while a varied understanding of safety indicates the need for more in-depth education. Strong community cooperation and greater government support, including the provision of resources and training programs, are essential to address these issues and improve the well-being and safety of fishermen.
The Influence of Work Environment and Work Culture on the Fatigue of the MT. Sultan Mahmud Badaruddin II Crew Agus Widodo; Dedtri Anwar; Siwi Woro Herningsih
Prosiding Seminar Nasional Ilmu Teknik Vol. 2 No. 2 (2025): Desember: Prosiding Seminar Nasional Ilmu Teknik
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/prosemnasproit.v2i2.52

Abstract

This research is motivated by the high risk of fatigue experienced by ship crews during voyages, which directly affects occupational safety and mental well-being. Fatigue arises from long working hours, inadequate rest time, heavy workloads, and extreme environmental conditions such as high temperatures, engine noise, and vessel vibrations. On the MT. Sultan Mahmud Badaruddin II, the problem becomes more complex due to the tight work rhythm, short berthing periods, and fast, repetitive loading–unloading activities. Harsh weather conditions, short but intensive sailing distances, and limited relaxation facilities make the crew increasingly vulnerable to both physical and mental fatigue. In addition, a work culture that tends to be authoritarian and lacks communication exacerbates psychological pressure, especially when crew members find it difficult to report their fatigue to superiors. This study uses a qualitative method through direct observation and interviews with all crew members in the deck and engine departments. The aim is to analyze the influence of the work environment and work culture on fatigue levels onboard. The results show that environmental factors such as high temperatures, narrow workspaces, and vessel instability significantly affect physical fatigue. Meanwhile, mental fatigue is triggered by ineffective communication, hierarchical pressure, and an unsupportive work culture. These findings align with the perspectives of Mathis and Jackson and comply with the provisions of the STCW 2010 and MLC 2006, which emphasize the importance of regulating working hours and fatigue management. Overall, optimizing rest hours, improving the work environment, and reforming organizational culture are required to reduce fatigue risks.
Design and Performance Testing of Seawater Batteries as Renewable Energy for Marine Boat Lights Dedtri Anwar; Jedithjah Naapia Tamedi Papia; Hendra Purnomo; Putu Deny Darmawan
International Journal of Recent Technology and Applied Science (IJORTAS) Vol 7 No 1: March 2025
Publisher : Lamintang Education and Training (LET) Centre

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36079/lamintang.ijortas-0701.773

Abstract

Indonesian seas offer abundant renewable energy potential. Seawater batteries have attractive advantages as a source of electrical energy. The purpose of this study was to design and manufacture a seawater battery and test its performance for ship lighting. The methodology used includes designing and manufacturing a seawater battery storage container based on electrode dimensions, assembling electrodes and insulators, and testing battery performance using LED lights. The results showed that the design produced an 8-cell seawater battery with a height of 24 cm and a diameter of 17.78 cm (7 inches). Performance testing with a 7 W LED lamp for 60 minutes showed that higher salt content caused an increase in the average light intensity produced. In 8 W and 10 W LED lamps, it is known that an increase in the average light intensity produced only occurs at an increase in salt content of 3 to 4%, while an increase in the average light intensity at a salt content of 5% does not occur, iii) average salt content -an average of 4% on a seawater battery with a 60 minute test for a 7W LED lamp produces an average light intensity of 227.33 lumens, for an 8W LED lamp an average of 325 lumens, and for a 10W LED lamp an average of 604, 67 lumens. The greater the power of the LED lamp used, the greater the light intensity produced.
Co-Authors Agus Widodo Alamsyah, Jaya Arika Palapa Aris Jamaan Fajar Sutopo Frisca Mareyta Pongoh Hendra Purnomo Iksan Saifudin Jaya Alamsya Jedithjah Naapia Tamedi Papia Jeihn Novita C. Budiman Joseph R Rengga Komang Vivi Gayatri Kris Wanto Putu Deny Darmawan Santun Irawan, Santun Siwi Woro Herningsih Vinceciius Ari Setyawan Yustiani Frastika