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Frengki Mohamad Felayati
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International Journal of Marine Engineering and Applications Department of Marine Engineering, Universitas Hang Tuah Jl. Arief Rahman Hakim No.150, Surabaya, Jawa Timur, Indonesia 60111
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International Journal of Marine Engineering and Applications
Published by Universitas Hang Tuah
ISSN : -     EISSN : 3063640X     DOI : https://doi.org/10.30649/ijmea.v2i2
Core Subject : Science, Engineering,
Control & Systems Engineering Energy Engineering Mechanical Engineering Transportation
International Journal of Marine Engineering and Applications is a peer-reviewed, open-access journal dedicated to advancing the field of marine engineering and its diverse applications. With a focus on promoting high-quality research and innovative solutions, IJMEA is a premier platform for researchers, engineers, academicians, and practitioners worldwide. At IJMEA, our mission is to facilitate the dissemination of high-quality research and development in marine engineering and related areas, fostering collaboration and knowledge exchange among experts from various disciplines. We aim to contribute to the sustainable advancement of marine technology, addressing challenges and exploring opportunities in maritime industries and marine sciences. IJMEA welcomes original research articles, review papers, technical notes, and case studies covering a broad spectrum of topics in marine engineering and applications, including but not limited to: - Ship design, construction, and operation - Marine engineering - Marine production and manufacture - Naval architecture - Marine propulsion systems - Mechanical engineering - Offshore engineering - Ocean renewable energy - Maritime safety and environmental protection - Coastal engineering - Marine robotics and autonomous systems - Underwater technology - Marine materials and corrosion - Port and harbor engineering - Marine resource management
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 12 Documents
 1   2 
IMPACT ANALYSIS OF THE FUJI LESTARI PROGRAM ON FISH RESOURCE RECOVERY AND THE ADVANCEMENT OF SUSTAINABLE DEVELOPMENT GOAL 14 (LIFE BELOW WATER) IN THE JAVA SEA (FISHERIES MANAGEMENT AREA 712), INDONESIA Nugraha Hasan, Reza Adhitama; Rahardjo, Oktavian; Bachtiar, Naila Taslimah
IJMEA Journal Kedokteran Gigi Vol 2 No 1 (2025): March 2025
Publisher : Department of Marine Engineering, Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/ijmea.v2i1.380

Abstract

The Fuji Lestari program, implemented regularly by the Ministry of Marine Affairs and Fisheries (KKP) through the Fishing Technology Center (BBPI), aims to restore fishery resources. The Java Sea (FMA-712), characterized by the highest population of fishers, has been categorized as fully exploited, necessitating the Fuji Lestari program to restore its condition. This study evaluates the program's impacts in Bangsring waters, Banyuwangi Regency (2011); Panjang Island, Jepara Regency (2021); and Karang Jeruk, Tegal Regency (2024). The methodology included field observations, underwater visual census (UVC), and interviews using purposive sampling targeting program beneficiaries. Data analysis assessed ecological and economic impacts. Ecological impacts included changes in coral cover in Bangsring and Panjang Island, as well as increases in fish abundance and diversity in Karang Jeruk. Economic impacts were analyzed by calculating the total economic valuation (TEV) for the three locations. Results show a significant increase in live coral cover of 2.4 hectares in Bangsring waters and 1 hectare in Panjang Island waters. In Karang Jeruk, reef-associated fish species increased from 6 to 12 species, with a diversity index rising from 1.49 to 1.71. The TEV from direct, indirect, existence, and option benefits in Bangsring, Banyuwangi Regency was IDR 11,856,378,385; Panjang Island, Jepara Regency was IDR 5,136,896,500; and Karang Jeruk, Tegal Regency was IDR 9,655,638,600. Variations in impact across regions depended on environmental damage levels and the characteristics of fisher beneficiaries. Furthermore, stakeholder collaboration is crucial in optimizing existing opportunities to ensure the program's future success.
SHIP RESISTANCE ANALYSIS WATERJET REMOTELY OPERATED VEHICLE (ROV) USING COMPUTATIONAL FLUID DYNAMICS (CFD) METHOD Kause, Eurico Leonardo; Susanto, Tri
IJMEA Journal Kedokteran Gigi Vol 2 No 1 (2025): March 2025
Publisher : Department of Marine Engineering, Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/ijmea.v2i1.381

Abstract

The propulsion system is a system that supports the performance of high-speed ships. Waterjet ship propulsion systems have long been known and used as propulsion systems for various types of ships, but their widespread application is still subject to their relatively low propulsive efficiency when compared to ship propulsion systems that use propellers, especially during relatively low ship speeds. The usual problem with ROVs using conventional propellers when inspecting in low water in the river is the blockage of river impurities, such as water hyacinths and underwater roots, on the ROV propellers. But there is a limitation to the problem when this waterjet is installed on the ROV should be used on inspections that do not work on the seabed, and the ROV can only be in a hovering position because the waterjet is susceptible to dirt. The purpose of this study was to analyze the ship's resistance of the waterjet remotely operated vehicle (ROV) propulsion system with the results of simulating the effect of the Waterjet ROV design on the total resistance of the Waterjet ROV increased by 5.69 N using the CFD method and the difference in prisoner comparison using the maxsurf method was 1.75%. The thrust analysis of the ROV model with a waterjet propulsion system has a higher thrust increase of 9.21 N when compared to the ROV model with a conventional propeller propulsion system, with a thrust value of 6.94 N. From the analysis of the fluid velocity contour results of the two best ROV models, namely the Waterjet ROV because the placement of the waterjet position on the outer side of the ROV frame so that the placement of the original Propeller inside the inner frame of the ROV is released as a result it tends not to create more turbulence and friction in the water in the middle of the ROV but the surface of the ROV frame on the outside which is added waterjet propulsion components causes higher hydrodynamic pressure.

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