https://ejournal.undip.ac.id/index.php/kapal/issue/feedKapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan2024-03-22T01:57:53+00:00Editor-in-Chiefjurnal.kapal@live.undip.ac.idOpen Journal Systems<p><strong>KAPAL: Jurnal Ilmu Pengetahuan & Teknologi Kelautan</strong> (e-ISSN: <strong><a href="http://issn.pdii.lipi.go.id/issn.cgi?daftar&1342508490&1&&" target="_blank">2301-9069</a></strong>) is an open access and peer-reviewed journal published by the <strong><a href="http://perkapalan.ft.undip.ac.id/">Department of Naval Architecture</a></strong>, <strong><a href="https://ft.undip.ac.id/" target="_self">Faculty of Engineering</a>, <a href="https://www.undip.ac.id/" target="_self">Diponegoro University</a></strong> in February, June and October each year. Manuscripts approved for publication have been reviewed by reviewers and are free to download via our website. The specific areas of interest include, but are not limited to:</p><ol><li>Ship Hydrodynamics</li><li>Ship Design and Production</li><li>Ship Structure</li><li>Naval and Marine System</li><li>Marine Engineering</li><li>Ship Material</li><li>Marine Transport Engineering</li><li>Ocean Renewable Energy</li><li>Ocean and Offshore Engineering</li><li>Coastal & Port Engineering</li></ol><p><strong>KAPAL: Jurnal Ilmu Pengetahuan & Teknologi Kelautan</strong> accepts manuscripts written in English. This Journal has been indexed in <a title="SINTA 2 terbaru" href="https://sinta3.kemdikbud.go.id/journals/profile/3860" target="_blank"><strong>Sinta(S2)</strong></a> <strong>(<a title="SK" href="https://drive.google.com/file/d/1_FDZ7wHXTsZlEgOprqvbAPYNW9yueWCp/view?usp=sharing" target="_blank">Kemendikbudristek No. 158/E/KPT/2021</a>), <a title="DOAJ" href="https://doaj.org/toc/2301-9069?source=%7B%22query%22%3A%7B%22filtered%22%3A%7B%22filter%22%3A%7B%22bool%22%3A%7B%22must%22%3A%5B%7B%22terms%22%3A%7B%22index.issn.exact%22%3A%5B%221829-8370%22%2C%222301-9069%22%5D%7D%7D%5D%7D%7D%2C%22query%22%3A%7B%22match_all%22%3A%7B%7D%7D%7D%7D%2C%22size%22%3A100%2C%22sort%22%3A%5B%7B%22created_date%22%3A%7B%22order%22%3A%22desc%22%7D%7D%5D%2C%22_source%22%3A%7B%7D%7D" target="_blank">DOAJ</a>, <a title="Garuda" href="http://garuda.ristekdikti.go.id/journal/view/1257">Garuda(Garba Rujukan Digital)</a>, <a href="https://scholar.google.com/citations?user=aRpJLxwAAAAJ&hl=id">Google scholar</a>, <a title="IPI" href="http://id.portalgaruda.org/?ref=browse&mod=viewjournal&journal=1257">Portal Garuda/Indonesian Publication Index</a>, <a title="PKP Index" href="http://index.pkp.sfu.ca/index.php/browse/index/637">PKP Index</a>,<a title="SHERPA/RoMEO" href="http://www.sherpa.ac.uk/romeo/search.php?issn=1829-8370"> SHERPA/RoMEO</a>, <a title="Microsoft Academic" href="https://academic.microsoft.com/#/detail/2737423788">Microsoft Academic</a>, <a title="CiteFactor" href="http://www.citefactor.org/journal/index/16325/jurnal-kapal">CiteFactor</a>, <a title="Crossref" href="https://search.crossref.org/?q=kapal&publication=Kapal&source=Crossref">Crossref</a>, <a title="Dimensions" href="https://app.dimensions.ai/discover/publication?and_facet_source_title=jour.1155160" target="_blank">Dimensions</a> .</strong></p><p><strong><span>The Article Processing Charge (APC) is effectively applied from the issue of June 2023 for all accepted papers. </span></strong><strong>The APC was used to increase journal services and the editorial process (see APC Section).</strong></p><p><strong><br /></strong></p><p> <img src="/public/site/images/kapal_jm/sertifikat3.png" alt="" /></p><p><strong><br /></strong></p>https://ejournal.undip.ac.id/index.php/kapal/article/view/61750CFD Analysis of Interference Factor in Hydrofoil-Supported Catamarans (HYSUCAT)2024-03-22T01:57:51+00:00Ahmad Firdhausahmadf@lecturer.undip.ac.idKiryanto Kiryantokiryanto@lecturer.undip.ac.idGood Rindogoodrindo@lecturer.undip.ac.idAndi Trimulyonoanditrimulyono@lecturer.undip.ac.id<p>A comprehensive numerical analysis of the impact that hydrofoils have on the interference factors that affect catamaran ships is presented. The hypothesis that the incorporation of hydrofoils into catamaran designs can significantly alter the hydrodynamic interference factors that are essential to the overall performance and efficiency of these vessels is the basis for the research that is being conducted. The purpose of this paper is to investigate the changes in hydrodynamic characteristics that occur when hydrofoils are incorporated into typical catamaran hull forms. This is accomplished through the utilization of advanced Computing Fluid Dynamics (CFD) simulations. In this study, a Delft-372 catamaran with a concept design is modified by installing a foil system with a high Reynolds number in order to reduce its overall resistance. The new system is then analyzed in order to determine the impact that it has on interference factors. For the purpose of achieving a comprehensive understanding of hydrodynamic behaviour, the simulations are carried out under a variety of operating conditions, which include a variety of speeds. In the process of designing and optimizing high-performance catamaran vessels, the findings provide naval architects and marine engineers with valuable insights that can facilitate their work. This study makes a significant contribution to the understanding of hydrofoil-assisted catamarans, which in turn paves the way for marine transportation solutions that are more efficient and environmentally friendly.</p>2024-03-22T01:57:51+00:00Copyright (c) 2024 Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautanhttps://ejournal.undip.ac.id/index.php/kapal/article/view/60839Analysis of Ambulance Ship Design in Karimunjawa Waters reviewed by Stability and Seakeeping2024-03-22T01:57:52+00:00Gusma Hamdana Putrahamdana.putra@ppns.ac.idRachmad Tri Soelistijonorachmad_tri@ppns.ac.idPrasastya Dhohir Setyawanprasasthadhohir@student.ppns.ac.idThe inadequate health facilities in the Karimunjawa Islands region still need attention. In particular, patients who have to be referred to the hospital still have problems in terms of transportation. This research presents the results of simulations of ambulance ship designs adapted to Karimunjawa conditions. A ship with a length of 8 m, width of 2.2 m, height of 1.1 m, and draft height of 0.37 m is analyzed regarding stability and seakeeping referring to IMO HSC Code 2000 Annex 8. Several parameters are determined, such as load, speed, significant wave height, and direction. The results in terms of stability show that loads of 100%, 50%, and 25% are still acceptable. Then, the results from seakeeping show that at a speed of 23 knots and significant wave height, especially in the diagonal wave direction of the ship, it is not acceptable2024-03-22T01:57:52+00:00Copyright (c) 2024 Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautanhttps://ejournal.undip.ac.id/index.php/kapal/article/view/61692Experimental Investigation of Oxy-Hydrogen Injection in Natural Gas/Diesel Dual-Fuel Engine: Performance and Emission Analysis under Low Load Operation2024-03-22T01:57:52+00:00betty arianibetty.ariani@ft.um-surabaya.ac.idfrengki mohamad felayatifrengki@hangtuah.ac.idMohammad Arif Batutaharifbatutah@ft.um-surabaya.ac.idThe pursuit of achieving zero carbon emissions by 2050 has led to the implementation of green technologies in the maritime industry. One crucial aspect is the adoption of alternative fuels, with a focus on non-fossil fuels to enhance energy efficiency and minimize emissions during ship operations. This study explores the innovative dual fuel diesel – Compressed Natural Gas (CNG) technology, which offers relatively low emissions with uncomplicated modifications to the diesel engine. CNG is injected into the intake manifold, addressing the need for cleaner fuel options. However, the evolution of this technology has encountered challenges such as methane slip resulting from incomplete combustion. This research proposes an intervention using hydrogen within the combustion chamber to improve combustion quality. Oxy-hydrogen gas (HHO), a carbon-free fuel derived from water through electrolysis, is considered as a potential solution. The utilization of HHO serves as a substitute for pure H2 due to its more feasible production and application, considering the global limitations in hydrogen storage and usage in transportation. The study aims to investigate the impact of HHO on the performance and emissions of dual fuel engines. Experimental tests are conducted under low loads to simulate critical operational points of the engine. Results indicate that the dual fuel system exhibits significant fuel savings, particularly with increasing injection duration. However, the need for additional oxygen to enhance combustion perfection must be balanced. HHO injection demonstrates the potential to improve engine performance, leveraging the oxygen content in HHO and the positive characteristics of hydrogen with its high Lower Heating Value (LHV). Furthermore, the research suggests that HHO injection can mitigate methane slip issues associated with dual fuel engine operations, offering a promising avenue for emission reduction2024-03-22T01:57:52+00:00Copyright (c) 2024 Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautanhttps://ejournal.undip.ac.id/index.php/kapal/article/view/58868The necessity of implementing AI for enhancing safety in the Indonesian passenger shipping fleet2024-03-22T01:57:52+00:00Shinta J.A. Rahadishin007@brin.go.idDimas Fajar Prasetyodima023@brin.go.idMuhammad Luqman Hakimmluqmanhak@lecturer.undip.ac.idDian Purnama Saridian.purnama.sari@brin.go.idPutri Virlianiputr003@brin.go.idCakra W.K. RahadiCakra-wijaya-kusuma-rahadi.2023@uni.strath.ac.ukRina Rinarina009@brin.go.idR. D. Yulfaniyulfani@brin.go.idLuthfansyah MohammadLuthfan48@lecturer.undip.ac.idDiva Kurnianingtyasdivaku@ub.ac.idThe shipping industry, grappling with escalating challenges, increasingly adopts Artificial Intelligence (AI) to enhance efficiency, safety, and environmental impact. Experts endorse ship automation and AI implementation for safety, navigation, and operational efficiency in ferry networks. This paper underscores AIS technology's role in maritime safety and environmental protection, emphasizing AI's potential in navigation and knowledge gap bridging. Indonesia, with its numerous islands and significant population, faces complex challenges in ensuring safe maritime transportation. Collaborative efforts among the government, industry, and stakeholders are vital for enhancing safety standards across the archipelago. Despite regulations, Indonesia contends with a high ferry accident rate, prompting the need for preventive measures. The study reviews AI's application in preventing sea accidents, recognizing its contributions and potential effectiveness in maritime safety. Acknowledging challenges like data quality and cybersecurity, the paper emphasizes the necessity of AI development for passenger ship safety. It concludes by highlighting significant research efforts, endorsing AI's promising role in reshaping the industry for improved efficiency and safety. Further exploration of AI applications, particularly in passenger ship safety, is recommended to meet evolving challenges in the maritime sector.2024-03-22T01:57:52+00:00Copyright (c) 2022 Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautanhttps://ejournal.undip.ac.id/index.php/kapal/article/view/59736Management Logistics Maritime: A Literature Review2024-03-22T01:57:53+00:00Larsen Barasalarsen.barasa@stipjakarta.ac.idDamoyanto Purbadamoyanto_purba@dephub.go.id<p>Using a systematic literature review as the primary research approach, the purpose of this study is to provide an overview of the research trends connected to management of maritime logistics in both Asia and Indonesia. The literature review was carried out with the help of Leximancer, which is a text analytics software, in order to determine the major ideas and recurring topics that were addressed in the research that were chosen. A form of research known as a systematic literature review was utilized for this particular investigation. According to the findings of the comprehensive evaluation of the relevant literature, researchers in Asia and Indonesia follow comparable lines of enquiry in the field of maritime logistics management research. The studies concentrate their attention particularly on topics like the management of supply chains, the optimization of transportation, and the promotion of sustainability in maritime logistics. In spite of the fact that the study tendencies in Asia and Indonesia are quite comparable to one another, certain studies in Indonesia place a distinct emphasis on particular ideas like society, the environment, and marine development. Taking into account its archipelagic character, local rules, and vital position in international trade, these ideas are reflective of the particular challenges and opportunities that Indonesia has when it comes to the management of its maritime logistics. To summarize, Asian research on logistics and maritime management focuses on risks, performance, globalization, environmental sustainability, and green practices. Therefore, Asian trends can be utilized by Indonesian scholars in their studies of maritime logistics management.</p>2024-03-22T01:57:53+00:00Copyright (c) 2024 Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautanhttps://ejournal.undip.ac.id/index.php/kapal/article/view/61944Systematic Considerations for a Ballast Water Treatment System (BWTS) Retrofits: A Review2024-03-22T01:57:53+00:00Wanda Rulita Sariwandarulita36@gmail.comGunawan Gunawangunawan_kapal@eng.ui.ac.idAs a country that has more than half of the country's total territorial waters, Indonesia is highly dependent on shipping activities. Therefore, knowledge of policy updates for each ship from IMO must also be taken into account, one of which is the policy regarding the Ballast Water Management System, which requires every ship to be installed with a Ballast Water Treatment System in order to achieve the goal of a green environment in voyage areas by inhibiting the spread of microorganisms that endanger the area that is caused by ballast water. This regulatory update then creates problems, especially for ships that have been operating for a long time, because the ship has to comply with the standards for D-1 and then also have to comply with the D-2 standards according to the time specified in the convention. So, this review article will discuss the solution to the issues with retrofitting ballast water treatment systems as the addition of a new system to the existing system on a ship that has sailed and pay attention to conceptual aspects consisting of considerations and operations to find the type of ballast water treatment that suits each ship's needs by analyzing the advantages and disadvantages of each technology type method. There is also consideration for several stages that are commonly used to determine the type of treatment, starting with assessment and planning requirements, selection of space, compliance with BWMS regulations, selection of the ballast water treatment system method, engineering drawing, installation planning, and commissioning. Apart from that, several related innovation considerations were also discussed, including the development of alternative treatment technology, which has the potential for efficiency both in operational aspects and safety standards. Based on research developments, retrofitting the Ballast Water Treatment System with the ultra-violet (UV) treatment is well known as the common treatment beside the electrolysis treatment. The results obtained show that the ultra-violet (UV) method is one of the most efficient treatments when viewed from the way it works and the time duration for the treatment process. This proves that ultra-violet treatment can produce maximum efficiency if the selection of needs and consideration of maximized aspects also exceed the safety aspect as well.2024-03-22T01:57:53+00:00Copyright (c) 2024 Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan