International Journal of Marine Engineering Innovation and Research
International Journal of Marine Engineering Innovation and Research (IJMEIR) is an open-access journal, which means that visitors all over the world could publish, read, download, cite and distribute papers published in this journal for free of cost. IJMEIR journal has a vast group of visitors, a far-reaching impact and pretty high citation. IJMEIR adopts a peer-review model, which insured fast publishing and convenient submission. IJMEIR now cordially inviting you to contribute or recommend quality papers to us. This journal is geared towards the dissemination of original innovation, research and practical contributions by both scientists and engineers, from both academia and industry. Theses, dissertations, research papers, and reviews associated with all aspects of marine engineering, marine sciences, and marine technology are all acceptable for publication. International Journal of Marine Engineering Innovation and Research (IJMEIR) focus and scopes are preserve prompt publication of manuscripts that meet the broad-spectrum criteria of scientific excellence. Areas of interest include, but are not limited to: Automotive Biochemical Biology Biomedical science Biophysics and biochemistry Chemical Chemistry Combat Engineering Communication Computer science Construction Energy Energy storage Engineering geology Enterprise Entertainment Environmental Environmental Engineering Science Environmental Risk Assessment Environmental technology Financial Engineering Fire Protection Engineering Fisheries science Fishing Food Science and Technology Health Care & Public Health, Health Safety Health Technologies Industrial Technology Industry Business Informatics Machinery Manufacturing Marine Engineering Marine sciences Marine technology Marine biology Marine economic Marine engines Marine fisheries Marine fuel Marine geology Marine geophysic Marine management Marine oil and gas Marine policy Material sciences Materials science and engineering Mathematics Mechanics Medical Technology Metallurgical Micro-technology Military Ammunition Military Technology Military Technology and equipment Mining Motor Vehicles Naval Engineering Neuroscience Nuclear technology Ocean Robotics and Automation Safety Engineering Sanitary Engineering Space Technology Statistics Traffic Transport Visual Technology
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<![CDATA[Conversion of Waste Cooking Oil Combined With Corn Oil Into Biodiesel Using the Transesterification Method ]]>
<![CDATA[Suardi]]>;
<![CDATA[Faisal Mahmuddin]]>;
<![CDATA[Syerly Klara]]>;
<![CDATA[Wira Setiawan]]>;
<![CDATA[Muhammad Uswah Pawara]]>;
<![CDATA[Jumardi]]>
<![CDATA[ International Journal of Marine Engineering Innovation and Research Vol. 9 No. 1 (2024) ]]>
Publisher : <![CDATA[Department of Marine Engineering, Institut Teknologi Sepuluh Nopember ]]>
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DOI: 10.12962/j25481479.v9i1.5039
<![CDATA[This research endeavors to explore a novel alternative fuel source by combining waste used cooking oil and corn oil to create a biodiesel blend. The study addresses two main objectives: first, to investigate the properties of used cooking oil biodiesel with the addition of methanol and NaOH catalysts, and second, to assess engine performance using the biodiesel blend. The experimental approach employs transesterification, varying the catalyst quantity during biodiesel production. Preceding diesel engine testing, properties such as viscosity are assessed, revealing improved values meeting Indonesian National Standards post-catalyst addition, albeit with a decrease in calorific value. Engine performance is then evaluated, demonstrating that as the catalyst content increases, torque and thermal efficiency decrease, while specific fuel consumption (SFC) rises. Notably, the study concludes that a higher catalyst ratio aligns fuel properties closer to government-set standards. The most favorable engine performance is observed in the B50 sample with a catalyst variation of 1000 ml of methanol and 25 g of NaOH, showcasing superior torque, thermal efficiency, and opacity values compared to higher catalyst variations. This research underscores the importance of catalyst optimization in achieving an environmentally friendly biodiesel blend with enhanced engine performance.]]>
<![CDATA[Fire Drill Performance Evaluation Model Onboard RoRo Passenger Ship ]]>
<![CDATA[Bagiyo Suwasono]]>;
<![CDATA[Sudirman]]>;
<![CDATA[Fajar Gunawan]]>
<![CDATA[ International Journal of Marine Engineering Innovation and Research Vol. 9 No. 1 (2024) ]]>
Publisher : <![CDATA[Department of Marine Engineering, Institut Teknologi Sepuluh Nopember ]]>
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DOI: 10.12962/j25481479.v9i1.5040
<![CDATA[Fire accident onboard RoRo (Roll on/Roll off) passenger ferry notoriously indicates intense symptoms of human, technical and organisational issues. In some cases, the more complex the fire's origin, the more challenging the crew would handle handling, suppressing, and putting out the fire. The crew response plays a significant role in the success of firefighting onboard. The research focuses on evaluating the effectiveness of fire drill performance by developing an evaluation model based on the cognitive model and analytical network process. The model was developed to overview crew performance and consistency in conducting fire drills on board the roro passenger ship. The questionnaire is developed to obtain crew perspective and awareness of fire risks. The analytical network process (ANP) model is utilised to identify crew preference during fire drills. The result of decision-based research identified significant issues that occurred in every step of cognition. Competency and proficiency of the crew, along with continuous training and familiarisation, were the main issues in improving effectiveness in firefighting. The results of the analysis were resourceful evidence to enhance audit and supervision for the emergency preparedness system. In addition, it is also a reference for developing further training models to improve crew overall performance in firefighting.]]>
<![CDATA[Assessment of Occupational Safety Risks in Ship Repairs at the Fisheries Service Employees Cooperative Shipyard (FSECS) ]]>
<![CDATA[Ilham Sudrajat]]>;
<![CDATA[Fis Purwangka]]>;
<![CDATA[Budhi Hascaryo Iskandar]]>
<![CDATA[ International Journal of Marine Engineering Innovation and Research Vol. 9 No. 1 (2024) ]]>
Publisher : <![CDATA[Department of Marine Engineering, Institut Teknologi Sepuluh Nopember ]]>
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DOI: 10.12962/j25481479.v9i1.5041
<![CDATA[Various activities at the FSEC shipyard found many potential dangers in each element of work activity. The FSEC shipyard requires risk assessments and critical points in each ship repair activity to overcome these problems. So, research is structured with the aim; a) identify and describe repair activities at FSEC yards; b) determine critical points along the repair, along with sources of danger and consequences. This research data analysis uses the FMEA method to identify each type of work and risk assessment. Based on the identification that are assumed to be crucial in the flow of ship repair activities, 26 activities were recorded including; a) preparation 10; b) process 10 and; c) post ship docking 6. Based on 26 activities, a total of 40 ships were recorded as sources of danger from docking preparations, ship docking processes and post-ship docking. Based on the results of data processing and analysis, it was concluded that 6 activities were included in the critical risk category, including; holding the ship as it is being lowered, the ship entering the docking area, removing the remaining barnacles, turning on the grinder, grinding the upper and lower hull of the ship and getting on and off the ship.]]>
<![CDATA[Escalation of Capacity and Quality PS60 Casting Production by Gating System Modification ]]>
<![CDATA[Widya Emilia Primaningtyas]]>;
<![CDATA[Dhika Aditya Purnomo]]>;
<![CDATA[Silvi Arianti]]>;
<![CDATA[Kiki Dwi Wulandari]]>;
<![CDATA[Benedicta Dian Alfanda]]>;
<![CDATA[Risa Nurin Baiti]]>
<![CDATA[ International Journal of Marine Engineering Innovation and Research Vol. 9 No. 1 (2024) ]]>
Publisher : <![CDATA[Department of Marine Engineering, Institut Teknologi Sepuluh Nopember ]]>
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DOI: 10.12962/j25481479.v9i1.5042
<![CDATA[A ship tank’s ventilation pipes protector, called PS60, is produced by an investment casting process using CF8M material. Shorter time production for PS60 products, occurred due to the rise of PS60 demand, resulting non class casting product quality. Reported that 15% of PS60 defective products were shown from each production group. Porosity defects are the most common defects found. Recalculating riser’s, runners’s, and ingates’s dimensions, then remodeling designs a mold gating system done in order to reduce the percentage of defective products and increase production capacity. Remodeling gating system and casting simulation done by ProCast 2018 software using New Advanced Porocity Module (NAPM). The casting simulation output was porosity defects location and percentage, which were further analyzed. The product produced using a mold Gating system with a new layout, had 314.73 cm3 of empty part in the mold cavity which was identified as a porosity defect which was 4.58% of the total volume of the cast product. The total value of the porosity after remodeling decreases by 2.39% from the existing product. 93.3% of the cavity inside the product is categorized as macroscopic porosity defects that are centralized in the riser and pouring basin areas, where in the casting product finishing process, these areas will be removed. Modification of the Gating System in PS60 mold escalates twice of PS60 capacity production than the origin.]]>
<![CDATA[The Analysis of Electrode Combination Effect on Steel and Stainless Steel Welding (Overview of Tensile and Metallography Test) ]]>
<![CDATA[Hasan Ikhwani]]>;
<![CDATA[Faruq Abdullah]]>;
<![CDATA[Herman Pratikno]]>
<![CDATA[ International Journal of Marine Engineering Innovation and Research Vol. 9 No. 1 (2024) ]]>
Publisher : <![CDATA[Department of Marine Engineering, Institut Teknologi Sepuluh Nopember ]]>
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DOI: 10.12962/j25481479.v9i1.5043
<![CDATA[The process of building a ship or offshore structure, proper and accurate planning and implementation is required. In the development process, it will go through a stage, namely the construction stage. At the construction stage, the construction of a ship or offshore building will go through a welding phase which functions as a connection of materials to one another. Low carbon steel and stainless steel are materials that are often used in the construction process of ships or offshore structures. In this study, an analysis of the effect of the combination of electrodes on the welding of steel and stainless steel materials was carried out in terms of mechanical properties such as tensile strength, bending strength and metallographic shape. The materials used in this study were A36 steel and 304 stainless steel, while the electrode combinations used were E308L and E309 electrodes. Welding variations used in this study were a combination of E308L (root) and E309 (filler) electrodes, a combination of E308L (filler) and E309 (root) electrodes, E309 electrodes, and E308L electrodes. In the tensile test results it was found that the highest tensile strength value occurred in Specimen 4 with an average value of yield strength and ultimate strength of 389.54 MPa and 522.52 MPa. The tensile strength value is influenced by the amount of chromium contained in the electrode. This is because the higher the amount of chromium causes the amount of ferrite in the material to increase so that the tensile strength value decreases. In the metallographic macro testing results, the best weld profile results were obtained on specimens with the ME 4 material code because the results of the weld profile shape best met ASME Section IX standards. The results of micro metallographic testing showed that welding using the dominant E308L electrode as in Specimen 1 and Specimen 4 obtained a higher ultimate strength value compared to Specimen 2 and Specimen 3. This was due to the influence of chromium on the electrodes used, high chromium causing the formation of a ferrite phase in the microstructure of the material.]]>
<![CDATA[Performance Improvement Incremental Conductance Algorithm using Incremental Fuzzy to Reach GMPP under Partial Shading Conditions ]]>
<![CDATA[Imam Sutrisno]]>;
<![CDATA[Joessianto Eko Poetro]]>;
<![CDATA[Pranowo Sidi]]>;
<![CDATA[Boedi Herijono]]>;
<![CDATA[Antonius Edy Kristiyono]]>;
<![CDATA[Monika Retno Gunarti]]>
<![CDATA[ International Journal of Marine Engineering Innovation and Research Vol. 9 No. 1 (2024) ]]>
Publisher : <![CDATA[Department of Marine Engineering, Institut Teknologi Sepuluh Nopember ]]>
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DOI: 10.12962/j25481479.v9i1.5044
<![CDATA[This paper proposes an improved Maximum Power Point Tracking (MPPT) algorithm for photovoltaic (PV) systems under partial shading conditions. The proposed method enhances the widely used Incremental Conductance (IC) algorithm by incorporating an incremental fuzzy control technique. The conventional IC algorithm suffers from limitations in adapting to rapidly changing irradiation conditions due to its fixed step size. The proposed Inc-Fuzzy algorithm dynamically adjusts the step size based on the change in power and voltage, enabling it to better track the Global Maximum Power Point (GMPP) under partial shading. Simulation results demonstrate that the Inc-Fuzzy algorithm achieves an average accuracy of 98.29% under constant irradiation and outperforms the conventional IC algorithm by 1.69% in terms of captured power during sudden irradiation changes. This improvement highlights the effectiveness of the Inc-Fuzzy approach in enhancing the performance of MPPT for PV systems under challenging operating conditions.]]>
<![CDATA[An Analysis of Challenges, and Prospects of Overcrowding and Heritage Small Island as a Tourism Destination: Pulau Lengkang, Batam Case Study ]]>
<![CDATA[I Wayan Koko Suryawan]]>;
<![CDATA[Sapta Suhardono]]>;
<![CDATA[Iva Yenis Septiariva]]>;
<![CDATA[Wisnu Prayogo]]>
<![CDATA[ International Journal of Marine Engineering Innovation and Research Vol. 9 No. 1 (2024) ]]>
Publisher : <![CDATA[Department of Marine Engineering, Institut Teknologi Sepuluh Nopember ]]>
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DOI: 10.12962/j25481479.v9i1.5045
<![CDATA[This paper explores Pulau Lengkang, an island near Batam City, known for its natural beauty and cultural heritage. It examines the impact of overcrowding on its aspiration to become a prominent tourism heritage destination. The main goal is to analyze the strengths, weaknesses, opportunities, and threats Pulau Lengkang faces in its development into a renowned tourist hub, with a focus on the challenges of overcrowding and the potential for sustainable tourism. The study employs a qualitative approach, relying on thorough literature review to understand the island's unique cultural and historical aspects and the implications of increasing visitor numbers on its heritage and environment. The findings reveal that while Pulau Lengkang boasts significant cultural and historical appeal, overcrowding threatens to strain its infrastructure and dilute its heritage. However, opportunities for sustainable tourism and cultural preservation present viable pathways to enhance its tourism appeal and support local community well-being. The study suggests that adopting eco-tourism and cultural engagement strategies can help safeguard Pulau Lengkang's heritage and promote sustainable development.]]>
<![CDATA[Composting as a Strategy for Biodegradable Marine Debris Reduction and Management in Jakarta ]]>
<![CDATA[Mega Mutiara Sari]]>;
<![CDATA[Takanobu Inoue]]>;
<![CDATA[Regil Kentaurus Harryes]]>;
<![CDATA[Kuriko Yokota]]>;
<![CDATA[Iva Yenis Septiariva]]>;
<![CDATA[Sapta Suhardono]]>;
<![CDATA[Shigeru Kato]]>;
<![CDATA[Suprihanto Notodarmojo]]>;
<![CDATA[I Wayan Koko Suryawan]]>
<![CDATA[ International Journal of Marine Engineering Innovation and Research Vol. 9 No. 1 (2024) ]]>
Publisher : <![CDATA[Department of Marine Engineering, Institut Teknologi Sepuluh Nopember ]]>
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DOI: 10.12962/j25481479.v9i1.5046
<![CDATA[This study explores the potential for managing biodegradable marine debris waste in Jakarta City through composting, aiming to reduce and treat this waste effectively. In Jakarta, river debris predominantly consists of materials that degrade easily and are biodegradable. Composting represents the most straightforward method for processing this type of organic waste. The study's objective was to evaluate the feasibility of composting organic biodegradable river debris as a waste management strategy. Data collection was conducted at Emplacement Pluit, utilizing random sampling with the four quadrants method. Out of the total river debris generated daily, which amounts to 309 m³, approximately 9.07 m³/day was found suitable for composting. The composting process resulted in a significant reduction of river debris volume by 50.15% within a 30-day detention period. This process was facilitated by mesophilic microbial activity at temperatures between 30-38°C. During the first two weeks, the composting environment remained acidic until the pH stabilized to a normal range between 6.8 and 7.49. A notable observation was the high initial water content of the river debris, recorded at 53.846%, which only reduced to 42.857% by the end of the 30-day decomposition period. Therefore, a pretreatment step is recommended to optimize the water content before composting. Despite these challenges, the compost produced met the required standards set by SNI 19-7030-2004. This study underscores the importance of managing biodegradable organic waste at its source to alleviate the burden on landfills, which are currently operating beyond their capacity.]]>
<![CDATA[Annex IV Marine Pollution (MARPOL) Application for Pollution Prevention on Ketapang-Gilimanuk Route Crossing Vessels with Analytical Hierarchy Process (AHP) Method ]]>
<![CDATA[Agung Pangestu Hadi]]>;
<![CDATA[Engki Andri Kisnarti]]>;
<![CDATA[Erik Sugianto]]>
<![CDATA[ International Journal of Marine Engineering Innovation and Research Vol. 9 No. 1 (2024) ]]>
Publisher : <![CDATA[Department of Marine Engineering, Institut Teknologi Sepuluh Nopember ]]>
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DOI: 10.12962/j25481479.v9i1.5048
<![CDATA[The Application of the Marine Pollution (MARPOL) Annex IV regulation concerning sewage discharge from ferry ships operating on the Ketapang-Gilimanuk route plays a crucial role in pollution prevention. However, this essential role has been compromised due to suspicions that sewage waste from the Ketapang-Gilimanuk ferry ships is being directly discharged into the sea. Additionally, it is believed that the lack of sewage storage facilities at the port and inadequate supervision by local port authorities contribute to this issue. This research aims to investigate the implementation of MARPOL Annex IV in pollution prevention on ferry ships along the Ketapang – Gilimanuk route using the Analytical Hierarchy Process (AHP) method. This method is employed to establish a comprehensive evaluation framework by considering criteria such as safety management systems, safety and environmental protection policies, Company responsibilities and authorities, cultural and behavioral aspects, organizational factors, and technical considerations. Data will be collected through surveys and interviews with ship operators and members. Economical is more priority than operational techniques because it is related to capital expenditure and operational costs of each alternative to prevent marine pollution. Operational techniques are more priority than safety and environment because they are related to the technical and operational of each alternative to preventing marine pollution. Regulations are more priority than safety and environment because regulations affect each alternative, both Indonesian regulations and also SOPs at ports.]]>
<![CDATA[Performance of Split Air Conditioner with Capillary Pipe Variations with R32 Refrigerant on Ships ]]>
<![CDATA[Urip Prayogi]]>;
<![CDATA[Frengki Mohammad Felayati]]>;
<![CDATA[M. Ilham Bintang H]]>
<![CDATA[ International Journal of Marine Engineering Innovation and Research Vol. 9 No. 1 (2024) ]]>
Publisher : <![CDATA[Department of Marine Engineering, Institut Teknologi Sepuluh Nopember ]]>
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DOI: 10.12962/j25481479.v9i1.5049
<![CDATA[The hot temperature on the ship will interfere with the comfort of the crew, so an air conditioning machine is needed to cool down. Hot conditions make air conditioning needed on the ship as a means of cooling when the ship sails. Split AC performance is very necessary so that the temperature released remains optimal. Split air conditioners have many components, for example, capillary pipes, capillary pipes play a very important role in obtaining low temperatures. Therefore, it is necessary to research variations in the length and diameter of capillary pipes. As a pressure-lowering device and regulating the amount of refrigerant liquid flowing, the length and diameter of capillary pipes greatly affect the cooling process. If you find the right and right variation, you will get a temperature lower than the standard Therefore, to get extra cooling for split air conditioners, research is proposed on the effect of variations in the length of capillary pipes on the work performance of split air conditioner machines using R32 refrigerant for ship accommodation room. To know the effect of cooling more extra because with changes in capillary pipes further maximize cold temperatures by using additional capillary pipe length. This study uses an experimental method with a split air conditioner 0.5 Hp as the main object and variations in capillary pipe length. the temperature after the capillary pipe is varied is lower than the standard, namely the standard achievement of 55.9 for a variation of 72 cm, which is 26.4, and the last variation of 159 cm, which is 29.]]>
