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International Journal of Marine Engineering Innovation and Research
Published by Institut Teknologi Sepuluh Nopember Surabaya
ISSN : 25415972     EISSN : 25481479     DOI : ttp://dx.doi.org/10.12962/j25481479
Core Subject : Science, Social, Engineering,
Automotive Engineering Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation
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
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 1,118 Documents
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Comparative Thermal Analysis of Turboprop and Turbofan Engines Ideal Brayton Cycle Efficiency and Performance Implications Cahya Wahyu Pribadi, Elwas; Abdul Ghofur; Rachmat Subagyo; Mastiadi Tamjidillah; Aqli Mursadin; Ma’ruf
International Journal of Marine Engineering Innovation and Research Vol. 11 No. 1 (2026)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v11i1

Abstract

Comparative thermal analysis of turboprop and turbofan engines in aircraft propulsion systems, with a focus on ideal thermal efficiency based on the Brayton cycle. Thermal efficiency, a dimensionless parameter representing the ratio of heat converted into useful work to the total heat input, is a fundamental indicator of engine performance and energy utilization. Turboprop engines, such as the Garret TPE331-10 powering the CASA C-212 Aviocar, operate as hybrid systems generating both jet thrust and shaft power for propeller rotation. In contrast, turbofan engines, exemplified by the CFM56-3CI, utilize a large bypass fan to achieve higher mass airflow and improved thrust efficiency at subsonic cruise conditions. This study quantitatively evaluates and compares the ideal thermal efficiencies of both engine types using data from previous studies. The analysis reveals that the CFM56-3 turbofan achieves an ideal thermal efficiency of approximately 70.51%, significantly higher than the TPE331-10 turboprop's 48.99%. This 21.52 percentage point difference is primarily attributed to the turbofan's higher compressor pressure ratio, enabling more effective energy conversion within the Brayton cycle. However, the paper also discusses the trade-off between thermal efficiency and propulsive efficiency, noting that turboprops excel at low to medium speeds due to superior propulsive efficiency from their propellers. The findings underscore that while turbofans are better suited for high-speed, long-range flights, turboprops remain optimal for short-haul operations. This comparison provides valuable insights for engineers, designers, and operators in selecting appropriate propulsion technologies and optimizing energy use across various flight missions.
The Effect of Current, Cr2O3 and MnO2 Active Flux to The Depth of Penetration and Microstructure of A-TIG 5083 Aluminium Welding Widodo, Eriek; Al Amin, Moch. Karim; Anggara, Dika; Kusminah, Imah; Wibowo, Alvalo; Haliq, Ridhwan; Nashruddin, Muhammad
International Journal of Marine Engineering Innovation and Research Vol. 11 No. 1 (2026)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v11i1

Abstract

Materials with a thickness exceeding 5 mm require at least two layers of TIG welding; however, this challenge can be addressed through A-TIG welding. A-TIG welding utilizes an active flux to increase penetration without requiring changes to welding parameters. This research investigated the effects of current intensity and the use of Cr2O3 and MnO2 active fluxes on depth of penetration, microstructure, and hardness. The study employed A-TIG welding on 5083 aluminum with current variations of 100 A, 130 A, and 160 A. Results indicated that Cr2O3 active flux at a current of 160 A achieved the deepest penetration of 5.7 mm, while MnO2 at 100 A yielded the highest average hardness of 77.96 kgf/mm2. Regarding microstructure, no significant changes were observed in the base metal across both fluxes; however, grain growth in the weld metal was more pronounced than in the Heat Affected Zone (HAZ) and base metal. Ultimately, Cr2O3 provided greater depth of penetration and a more dispersed distribution of Mg2Si precipitates, whereas MnO2 demonstrated a superior effect on hardness compared to Cr2O3.
Impact of Wingsail Integration on Seakeeping Performance and Stability of a Fishing Vessel Zalayetha, Hegel Desta; Utina, Muhammad Ridwan; Purnamasari, Dian; Suwarni, Endah; Sulistyawati, Wiwin
International Journal of Marine Engineering Innovation and Research Vol. 11 No. 1 (2026)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v11i1

Abstract

Reducing fuel consumption in fishing vessels has become an important issue in improving the efficiency and sustainability of maritime operations, particularly for small and medium-scale fisheries. One potential approach is the integration of wind-assisted propulsion systems such as wingsails. However, the addition of structures above the deck may influence vessel stability and motion responses in waves. This study evaluates the effect of wingsail integration on the seakeeping performance and intact stability of a fishing vessel operating in Benoa, Bali. The reference vessel has principal dimensions of LOA 33.50 m, LPP 29.65 m, breadth 7.95 m, depth 4.06 m, draft 2.90 m, and displacement 415.6 tons. Analysis is conducted using Maxsurf Stability for intact stability assessment and Maxsurf Motion for seakeeping analysis. The seakeeping evaluation considers wave headings of 90°, 135°, and 180° with vessel speeds of 6, 8, and 10 knots, while sea conditions are derived from Beaufort scale conversion. Vessel motions are assessed using RMS, MSI, and MII according to STANAG 4154, while stability is evaluated under departure, fishing ground, and arrival load cases based on IMO Intact Stability Criteria.
Thermo-Environmental Performance Analysis of Cascade Refrigeration System on Cruise Ship Applications Natasya, Deva; Rayhan, Fajri Ashfi
International Journal of Marine Engineering Innovation and Research Vol. 11 No. 1 (2026)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v11i1

Abstract

This study analyzes the thermo-environmental performance of cascade refrigeration systems applied to cruise ships to support energy efficiency improvement and emission reduction in accordance with MARPOL Annex VI regulations. Cruise ships have high energy demands, particularly in cooling systems that significantly contribute to overall energy consumption and environmental impact. This research aims to evaluate the effect of operating parameters and refrigerant selection on system performance using exergy efficiency, Ecological Coefficient of Performance (ECOP), and Total Equivalent Warming Impact (TEWI) as evaluation indicators. A thermodynamic model based on mass, energy, and exergy balance equations is applied, with simulations conducted under various operating temperatures and refrigerant combinations. The results indicate that increasing operating temperature from 275 K to 295 K reduces exergy efficiency and ECOP due to increased irreversibility, while TEWI rises significantly as a result of higher energy consumption. Hydrocarbon refrigerants such as R600a/R290 and R152a/R290 show the best performance in terms of both energy efficiency and environmental impact. In contrast, CO₂-based combinations tend to exhibit lower efficiency and higher environmental impact under certain conditions. Overall, selecting appropriate refrigerants and optimizing operating conditions are essential to achieve a balance between system efficiency and environmental sustainability in marine refrigeration systems.
Design and Development of a Mini Fresh Water Generator to Improve Freshwater Availability on Motor Sailing Vessels Agus Prawoto; Antonius Edy Kristiyono; Imam Sutrisno
International Journal of Marine Engineering Innovation and Research Vol. 10 No. 4 (2025)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i4

Abstract

Freshwater availability is a significant operational concern for motor sailing vessels, especially those navigating Indonesia’s extensive archipelagic regions with limited access to resupply points. Small vessels typically lack the space and energy resources required for conventional desalination systems, creating an urgent need for compact and efficient onboard water-making technology. This study aims to design, construct, and evaluate a miniaturized Fresh Water Generator (FWG) based on a small-scale thermal distillation process suitable for low-power marine applications. The research employed an applied engineering approach involving system design, 3D modeling, prototype fabrication, sensor integration, and performance testing under simulated ship conditions. The developed FWG incorporates an evaporator, passive air-cooled condenser, and Arduino-based monitoring system equipped with temperature, pH, and water-level sensors. Experimental results demonstrated a freshwater production rate of approximately 10 L/day, supported by stable thermal performance and an average distillate pH of 5.9. The system operated with low fuel consumption and maintained reliable automated monitoring throughout the trials. The findings indicate that the Mini FWG offers a practical, compact, and energy-efficient solution for small and medium-sized vessels, contributing to improved self-sufficiency and sustainability in maritime operations.
Rejuvenation Of State Ships To Drive Decarbonization Of The Shipping Sector Silaksanti, Danawiryya; Cahyadi, Tri; Winarno
International Journal of Marine Engineering Innovation and Research Vol. 10 No. 4 (2025)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

In line with the 2023 IMO GHG Strategy, adopted at the 80th Marine Environment Protection Committee (MEPC 80) on the Reduction of GHG Emissions from Ships, Indonesia has been implementing climate action that aligns with its national policy to combat climate change. The Government of Indonesia has been making efforts to rejuvenate state ships, specifically navigation and patrol ships, by building new ships and scrapping old ones. This study assessed the potential for reducing greenhouse gas emissions from state ship construction activities using modern technology. It analyzed operational data for each ship's specifications, such as fuel type, power, and gross tonnage. The study showed that the GHG emission reduction from this activity in 2023 is 128.564,39 tons of CO2, resulting from the 22 new ships built between 2019 and 2023. The construction of these new ships demonstrates the government’s commitment to reducing emissions from the operation of state ships by eliminating older ships. It is hoped that if commercial ships are also scrapped and replaced with new ones built using more modern technology that saves fuel, this will enhance efforts to reduce emissions from the shipping sector and encourage maritime decarbonization.
Effectiveness of Ramp Safety Awareness Training to Improve On-the-Job Training Students Safety Awareness Oka, I Gusti Agung Ayu Mas; Wulandari, Retno Sawitri; Masito, Fitri
International Journal of Marine Engineering Innovation and Research Vol. 10 No. 4 (2025)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The high risk at airports, especially in the apron and ramp areas, required personnel awareness of safety in those areas. This study was conducted to evaluate the Ramp Safety Awareness (RSA) training program for On-The-Job Training (OJT) students, in order to enhance safety awareness in the ramp area. This study employed an evaluation model developed by Robert E. Stake, known as the Countenance Model. The Stake evaluation model comprises three stages: antecedent, transaction, and output. The evaluation results at the transaction and output stages demonstrated that the RSA training was effective. The training process proceeded smoothly and successfully met its learning objectives. Additionally, the RSA training was found to be extremely beneficial for OJT students in carrying out their duties during the program. Meanwhile, the evaluation results at the antecedent stage revealed that certain improvements were necessary. First, it was essential to revise the OJT guidelines to establish a solid legal foundation for RSA training. Second, program planning had to include RSA training for OJT students as part of the annual program planning at least one year prior to the training's implementation. Finally, there was a need to create a three-year internship program for instructors specializing in aviation safety.
Ergonomic Redesign of a Traditional Fishing Vessel Wheelhouse Using Anthropometric Data and Postural Analysis Wiediartini; Kusuma, George Endri; Amrullah, Haidar Natsir; Ashari, Moch. Luqman; Handoko, Lukman
International Journal of Marine Engineering Innovation and Research Vol. 10 No. 4 (2025)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The ship's wheelhouse is a critical control center, yet its design often neglects essential ergonomic principles. This study analyzes the ergonomic aspects of the wheelhouse on a traditional fishing vessel, a type commonly used in the coastal areas of northern Java, Indonesia. The ergonomic evaluation of the design involved a quantitative postural analysis using the Rapid Upper Limb Assessment (RULA) method. The initial assessment revealed a RULA score of 3, indicating a need for ergonomic intervention, primarily due to issues with arm and wrist postures. In response, a redesign was proposed using Indonesian anthropometric data and simulated with CATIA software. The redesign included modifications to the console height, steering wheel dimensions, and the layout of the control panel. Validation using a Digital Human Model (DHM) showed a significant improvement, with the RULA score decreasing to 1 for the steering task and score 2 for reaching the control lever, indicating an acceptable postural load. The study concludes that applying anthropometric data to the wheelhouse design can substantially enhance operator safety, comfort, and productivity.

Page 112 of 112 | Total Record : 1118

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