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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 7 Documents
 1 
Search results for , issue "Vol. 4 No. 3 (2019)" : 7 Documents clear
Shaft Twist Moment Analysis of Turbocharger ABB Type VTR 354 Due to Surging Phenomenon Beny Cahyono; Aguk Zuhdi Muhammad Fathallah; Istiqomah; Semin
International Journal of Marine Engineering Innovation and Research Vol. 4 No. 3 (2019)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v4i3.6021

Abstract

Surging is a phenomenon in which the airflow back toward of the compressor side. This case is known by excessive sound or vibration in the turbocharger. The main cause of surging phenomenon is divided into two types, that is failure operation by crew and improper selection turbocharger by the designer. This research identifies the effect of surging on twisting moment of turbocharger shaft ABB type VTR 354 on Niigata 8MG40X engine. The method is using simulation based on Finite Element Method (FEM), start from determining the compressor and turbine torque then preparing the turbocharger shaft and simulation with SolidWorks. It is found that critical area caused by surging is located on compressor seat. The largest torque difference at 50% of the engine load about -1.304 Nm and maximum stress is about 0.015906 Mpa, while the displacement is about 0.0000270028 mm and the maximum strain is about 6.26693e-008 mm/mm. Thus, the shaft material 17NiCrMo6-4 is considered capable of dealing with surging on the turbocharger.
Determination of the Optimal Buoy Shape for A Concept Wave Energy Converter to Harness Low Amplitude Sea Waves using Numerical Simulation Olakunle Kayode; Olufemi Adebola Koya; Titus Oluwasiji Ajewole
International Journal of Marine Engineering Innovation and Research Vol. 4 No. 3 (2019)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v4i3.6022

Abstract

This research investigates the optimal buoy shape for a conceptual point absorber Wave Energy Converter (WEC) for harnessing low amplitude sea waves characteristic of the Gulf of Guinea coast. It has been established that shape of buoy is one of the main parameter affecting the efficiency of a point absorber WEC. Based on best buoy shapes as reported in literature, two shapes are selected for comparison: cone-cylinder composite buoy and Concave wedge shaped buoy. The WEC’s buoy and the power take off were mathematically modelled as a mass-spring-damper system. The buoys hydrodynamic coefficients were computed using strip theory, while the simulation in the time domain was executed using MATLAB. Impute parameters referred to as the sea states, in five levels, were described by the significant wave height Hs and the corresponding energy period Te, typical of the gulf. Output parameters are displacement, velocity, acceleration and force of the buoys, as well as the instantaneous power output of the WEC. For the levels considered, the optimum sea state for the two buoys peaked at level 4 (Hs = 1.5 m, Te = 14 s), with concave wedge buoy having an optimal power output of 8 kW while that of cone-cylinder being 3.7 kW. For the other levels the wedge buoy also consistently gives relatively greater power output than the cone cylinder buoy.
Development of Marine Loading and Unloading System for Ro-Ro Vessel Amiadji; Tony Bambang Musriyadi; Sunarsih; Arie Nanda Rizaldi
International Journal of Marine Engineering Innovation and Research Vol. 4 No. 3 (2019)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v4i3.6023

Abstract

Ship stability is one of the important criteria for ship safety as required by IMO and Indonesia Classification Bureau (BKI) in various rules. One of it is the IMO code of Intact Stability. Many factors affect the stability of a ship, including ship load, which in application varies in weight and type of vehicle. Maxsurf has been used to analyze various conditions of the ship, including stability. However, Maxsurf is too complicated to be used by ordinary people. For that a package needed as mediator to Maxsurf to be easier to use. This research developed a package to assist in analyzing the ship stability with vary in weight and type of vehicle. The package was created in Microsoft Excel worksheet and is connected to Maxsurf Stability. Visual Basic for Application was use to write the codes (coding) for the package command. The target ship used in this analysis is a 500 GT ferry ship. After the package is working properly, the analysis simulation can be run. Simulation results show that maximum GZ of both fully loaded and overloaded conditions occur at tilt angle of around 30o. Exceeding such value, the ship for both conditions slowly lose the turning moment. At fully loaded condition, the ship hardly turns back after reaching a tilt angle of 73 o. At overload condition, the ship is still safe though losing its ability to turn back is faster, at heel angle of 71o.
The Effect of Span to Chord Ratio PBCF on C4-40 Wageningen Series Propeller with CFD Method Irfan Syarif Arief; Edi Jadmiko; Izzul Fikry
International Journal of Marine Engineering Innovation and Research Vol. 4 No. 3 (2019)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v4i3.6024

Abstract

Propeller boss cap fin is one of the efforts to increase efficiency, especially in the field of ship propulsion. boss cap fins propeller or commonly called PBCF is one of the technologies that replace the boss cap propeller technology that first exists. Increasing efficiency can certainly have an impact on fuel consumption. This study will describe changes in efficiency, thrust, torque and the phenomenon of flow in the propeller after changes in span to chord ratio of fins with a fin form in the form of NACA foil. This research begins with determining the dimensions of the propeller and its model. The next step is to design and draw the boss cap fins propeller by modifying the span to chord ratio of the fins. The final step is analyzing propeller performance with software based on fluid dynamic computation. It is believed that changes in the PBCF span to chord ratio can improve efficiency, thrust, propeller torque, and minimize the hub vortex Simulations are carried out on four variations of the span to chord ratio, namely 0.17, 0.23, 0.29 and 0.34. From this study, it can be concluded that the propeller boss cap fins can increase thrust, torque, and efficiency, but the changes of span to chord ratio PBCF have not much effect on thrust, torque, and propeller efficiency. Increasing the PBCF span to chord ratio can reduce the hub vortex on the propeller.
Determination of Maintenance Task on Rotary Equipment Using Reliability Centered Maintenance II Method Dwi Priyanta; Nurhadi Siswantoro; Rizky Agung Sukandar
International Journal of Marine Engineering Innovation and Research Vol. 4 No. 3 (2019)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v4i3.6025

Abstract

The process of natural gas into LNG (Liquefied Natural Gas) requires many steps and various types of chemical products. The process also produces waste. The Liquid Incinerator treats waste from LNG process. This unit often experiences damages which causes the plant do not work properly and even a down/trip problems due to the continuous operation and the absence of maintenance program, especially for rotary equipments. This causes environmental pollution because the waste is unprocessed and could have an impact on the increased cost to treat the waste elsewhere. One of approaches to analyze the causes of the damage, the impact and effective treatment for equipment is using Reliability Centered Maintenance (RCM). The RCM method is expected to be able to identify the primary and secondary functions of the system, possible failure function, Failure Mode and Effect Analysis (FMEA), and the maintenance actions on the plant. The FMEA result will be used to determine the proposed maintenance task. Based on the proposed maintenance task, the maintenance interval for each equipment is obtained. After RCM analysis is done on 4 equipments, liquid waste feeding pump (34-G-2), quencher pump (34-G-3), scrubber pump (34-G-4) and air compressor (34-K-4). For 34-G-2 failure mode, requires 78% preventive maintenance and 22% corrective maintenance, 34-G-3 requires 87% preventive maintenance and 13% corrective maintenance, 34-G-4 requires 87% preventive maintenance and 13% corrective maintenance and 34-K-4 requires 70% preventive maintenance and 30% corrective maintenance. Workpackage for each interval is created from every failure mode for each interval for maintenance / inspection.
Design of Organic Rankine Cycle (ORC) Power Plant Systems by Using Flat-Plate Solar Collector Sutopo Purwono Fitri; Muhammad Badrus Zaman; Fahri Adib Azizi
International Journal of Marine Engineering Innovation and Research Vol. 4 No. 3 (2019)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v4i3.6026

Abstract

electrical energy is the most used energy today in daily activities and industry is increasing. In rural areas that do not have electricity still exists in Indonesia. In this study, it can be used as an alternative power plant that can be used by the countryside. The system used in this study is the new types of power plants, namely the Organic Rankine Cycle (ORC) system. In connection with the problems stated above, through this research, an effort will be made to design an ORC power generation system. The ORC power plant system that will be designed utilizes solar energy sources and working fluids. Solar power is used to heat the heating fluid in the form of water. This heating water is used to vaporize the working fluid which can evaporate at low temperatures and high pressures. So that the working fluid gas can be used to rotate the turbine shaft and produce electrical energy through a generator. Simulation is done using energy system software. In addition to simulations, examples of manual calculations are also needed for validation. The simulation results of the ORC generating system design on the two working fluids produce the greatest power at the pump outlet pressure of 6 bar with Wnet of 13.61 kW and the smallest power is generated by the pump outlet pressure of 5.03kW. While the design simulation of the ORC generating system produces power close to 10 kW at the pump outlet pressure of 5 bars with 11.38 kW. The flat collector solar-plate system gets the energy that is useful for collectors of 191.92 W and an efficiency of 9.8%.
Transient Voltage Analysis for Dynamic Positioning Closed Bus Electrical System on Ship in Laboratory Scale Sardono Sarwito; Eddy Setyo Koenhardono; A.A Masroeri; Indra Ranu Kusuma; Mochamad Nur Ichwan
International Journal of Marine Engineering Innovation and Research Vol. 4 No. 3 (2019)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v4i3.6027

Abstract

Ships equipped with a dynamic positioning system has a more number of thuster than ships that are not equipped with a dynamic positioning system. The addition of this thruster resulted in a significant increase in electrical loads so that the power plant will be added to the vessel. Dynamic positioning is a system used to support offshore vessel work consisting of a collection of equipment and control systems that work simultaneously to maintain the position of a vessel in accordance with which has been input into the system. Installation of the dynamic positioning system on the vessel affects the electrical system of the vessel. In the operation of electrical system on the vessel found the disturbances that arise one of them is transient interference that causes the change of voltage and frequency value in a short time. A Transient voltage occurs within a few seconds where the system conditions are unstable. The research was conducted in a laboratory scale by modeled a series of vessels that have the system with existing laboratory equipment where transient interference occurred due to the starting motor so that it is done Analysis of the magnitude of the voltage and frequency in the specified scenario as well as finding a solution to correct emerging interference that exceeds the standard. In the experiments made some configuration changes and obtained the result that the configuration of Split Plant 1 generator thruster has good system stability capable of achieving a stable condition with a loading of 50%. As for the loading of 60% stability of the system is unstable and can be improved again with the addition of capacitor.

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