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International Journal of Marine Engineering Innovation and Research

ijmeir
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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 10 Documents

Search results for , issue "Vol 5, No 2 (2020)" : 10 Documents clear

Implementation of Reliability Centered Maintenance Method for the Main Engine of Tugboat X to Select the Maintenance Task and Schedule Dwi Priyanta; Nurhadi Siswantoro; Madina Nur Pratiwi
International Journal of Marine Engineering Innovation and Research Vol 5, No 2 (2020)
Publisher : Institut Teknologi Sepuluh Nopember

Tugboat is the supporting system that plays an essential role in port. A tugboat used for maneuvering, primarily pulling or pushing bigger vessel in open seas or river to be able to lean in port. PT.X known as a company has a prominent business field in provides such as tugboat. On the PT. X Annual Report of 2018 reported several cases that caused that related to the reliability of the main engine. The failure occurred on the main engine, affected commission days targeted was not achieved. Reliability-Centered Maintenance (RCM) is a maintenance method that focused on elevating the reliability of a component in the system(s). RCM used a risk management principle to determine the maintenance task and schedule appropriately. RCM process implemented using the Guide for Survey Based on Reliability-Centered Maintenance (RCM) by the American Burau of Shipping (ABS). Based on the results of this research, there were 38 task list type which is obtained based on the analysis of maintenance task allocation and planning. The percentage of maintenance types from each failure mode (task type) Preventive Maintenance (PM) is 29%, Condition Monitoring (CM) is 29%, Finding Failure (FF) is 21% and One-Time Change (OTC) is 21%. Work package for each interval is created from every failure mode for each interval for maintenance/inspection.

The Effect of Using Various Magnetic Materials on Diesel Engines using Biodiesel Fuel Aguk Zuhdi Muhammad Fathallah; Adhi Iswantoro; Hafiz N. H. Perdana
International Journal of Marine Engineering Innovation and Research Vol 5, No 2 (2020)
Publisher : Institut Teknologi Sepuluh Nopember

One of method to improve engine performance and reduce fuel consumption is to use exposure to magnetic fields in the fuel lines. Several studies have proven that magnetic field exposure can improve diesel engine performance. This research aims to test the performance of a diesel engine using fuels that are given a magnetic field from 3 types of permanent magnets, namely magnets made from Neodymium Iron Boron (NdFeB), Aluminum Nickel Cobalt (AlNiCo), and Ferrite (Fe). Performance tests on the Yanmar TF85MH diesel engine include power and torque. The fuel used in this research is Biodiesel B20. The results showed that neodymium magnets (NdFeB) are the best magnets of the 3 types of magnets tested with an average increase in power of 2.30%, an average increase in torque of 2.35%.

Competitive Advantage Analysis of Shipyard Companies in Indonesia Resa Nurlaela Anwar; Danny Faturachman; Melani Quintania; Hermin Sirait; Rini Setiawati
International Journal of Marine Engineering Innovation and Research Vol 5, No 2 (2020)
Publisher : Institut Teknologi Sepuluh Nopember

The development of the shipping and shipyard industries in Indonesia over the past ten years has been very slow. Some of the causes, including low productivity and capacity, are the main reasons for this industry's penetration. In addition, the weakening of the national economy as a result of the weakening of the global economy also affected the domestic shipping industry. The competitiveness of the shipping and shipyard industry is influenced by industrial competitiveness and national competitiveness, so that shipyard industry problems must be solved comprehensively, accompanied by strategic and systematic steps in order to be able to compete sustainably. This study aims to analyze the strategies used by several shipping companies and shipyard companies to be able to survive and compete to win and get through severe conditions. This study uses descriptive qualitative method, which is supported by semi-structured interview techniques to obtain the data used in determining the resource person, using a purposive sampling method. The data collected is then tested for validity by using the triangulation of data sources to process the data obtained in developing alternative strategies using SWOT analysis (Strength, Weakness, Opportunities, Threat) In addition to the combination of SWOT methods. The findings of the research results state that all companies carry out defensive strategies so that they are a company that still exists today.

Modification of Sea Water Scrubber System into Fresh Water of Inert Gas System on the Crude Oil Tanker 85,000 DWT Nurhadi Siswantoro; Hari Prastowo; Faris Zulfar Rosyadi
International Journal of Marine Engineering Innovation and Research Vol 5, No 2 (2020)
Publisher : Institut Teknologi Sepuluh Nopember

Each ship carrying a hydrocarbon must be equipped with an inert gas system. On tankers, the function of inert gas is to prevent fires or explosions caused by oxygen levels contained in cargo tanks. Inert gas is produced by cleaning the exhaust gas boiler using a sea water scrubber system. However, seawater has corrosive properties that cause the use of material in scrubber system components to be resistant to corrosion. Therefore, through this research a modification of the sea water scrubber system was made into a freshwater scrubber system. The advantages of a freshwater scrubber system include a low corrosive level that causes the use of inexpensive materials. Modification of seawater scrubber systems into fresh water causes additional components to be made, including adding NaOH tank, expansion tank of freshwater, seawater pumps, freshwater pumps, NaOH pumps, heat exchanger, and wash water treatment unit. Economic calculations are carried out to determine the installation costs and operational costs needed from this modification. Based on the technical and economical analysis, modification of the sea water scrubber system into fresh water inert gas system of Crude Oil Tanker 85,000 DWT can be done with an estimated installation cost of 1.5 Bill. Rupiahs.

Design Analysis of the Hydraulic System for Containerized Oil Boom Muhammad Badrus Zaman; Agoes Santoso; Malik Fahadh
International Journal of Marine Engineering Innovation and Research Vol 5, No 2 (2020)
Publisher : Institut Teknologi Sepuluh Nopember

Oil Boom is an equipment used for efforts to overcome the oil spills that occur in the sea. The function of the Oil Boom itself is to limit the oil spill so that it doesn't spread too wide. The hydraulic system is a system that utilizes pressurized liquid fluid as the actuator drive media. The concept of the technical analysis of this system is the design of the winch system using a hydraulic motor which is a driving device as well as a roller of an oil boom that has a length of 2 kilometers and then stored into the drum that has been designed. All components are in a container package that has been designed to place the position and layout. To see the advantages and disadvantages of the system design, technical analysis is carried out. From the results of data processing it can be calculated for the torque moment of the drum which is equal to 9,344.416 Nm and weighs 242.697 kg. BLACKBRUIN BBC05 type hydraulic motor has been determined which has a torque of 10,360-13,305 Nm and a pressure of 350-400 bar. After the total air demand for oil boom as long as 2 km is known, which is equal to 552,951 cm3, the next step is to select the right compressor. Selected type TANABE TASK-25110 compressor with a capacity of 1,020 m3/hour. That way, it can be determined the air filling time for the oil boom is 0.542 hours = ±35-40 minutes.

Content and Back Cover International Journal of Marine Engineering Innovation and Research
International Journal of Marine Engineering Innovation and Research Vol 5, No 2 (2020)
Publisher : Institut Teknologi Sepuluh Nopember

Content and Back Cover

Numerical Analysis of Patrol Boat Performance with a Stern Flap Jadmiko, Edi; Sunarsih, Sunarsih; Wulandari, Jayanti
International Journal of Marine Engineering Innovation and Research Vol 5, No 2 (2020)
Publisher : Institut Teknologi Sepuluh Nopember

Ship resistance signifies the amount of fluid force acting opposes the ship movement. Past researches revealed that installation of a stern flap reduces the value by 5% to 10%. The current research investigates resistance reduction on a patrol boat due to variation of the flap span width and angle of installation. The flap chord length was varied by 50% and 100% of the ship transom width (BT) whilst the installation angle was set to 00 and 50. Numerical tests were carried out using CFD method employing NUMECA Fine Marine software. Simulation result disclosed that the stern flap length of 50% BT installed at 00 indicates the most optimum arrangement. Reduction of the resistance value increases correspondingly to the ship resistance as the ship speed increases. The wave form developed conforms with the flap width such that the wider the flap results in wider wave form. A reduction at the most of 1.87% was yielded at 15 knot ship speed. No significant reduction was observed due to installation angle at 00 and 50.

Motion Response Analysis of Hexagonal Pontoon Wave Energy Converter Irfan Arief Syarief; Achmad Baidowi; Azzahra Nirwana Islami
International Journal of Marine Engineering Innovation and Research Vol 5, No 2 (2020)
Publisher : Institut Teknologi Sepuluh Nopember

The wave energy conversion system is one of the technology innovative used in the researches of alternative power plant at sea. It receives environmental loads such as wave, wind, and current during its operation. In order to be able to rotate the pendulum and produce electricity, it is designed with a hexagonal shaped ponton with three floaters on its sides to increase the rotational motion of the ponton. These floaters are connected to the ponton by an arm, identically distance from one another. Mooring system used in this research is designed to allow it to still move and rotate the pendulum while keeping the platform from capsizing. This research is discussing about the difference of motion response between three variations of wave energy conversion system designs, Variation 1 that is designed with floaters, Variation 2 with shortened floater arms, and Variation 3 which have no floaters, by comparing their RAOs (Response Amplitude Operator), to figure out which design is the most responsive when collinear load from heading 0o, 30o, 60o, 90o, and 120o is acting on it. This research reveals that model Variation 1 is the most optimal because it has relatively higher values of RAOs, and the motion response of the ponton is still apparent after mooring system is installed. The highest RAO in free floating condition for 6 degree of freedom surge, sway, heave, pitch, roll, and yaw are 1,949 m/m frequency 0,1 Rad/s heading 0o, 1,6 m/m frequency 1,7 Rad/s heading 60o, 0,998 m/m frequency 0,1 Rad/s heading 0o, 22,13 Deg/m frequency 1,8 Rad/s heading 60o, 21,7 Deg/m frequency 2 Rad/s heading 0o, and 77,212 deg/m frequency 1,8 deg/m heading 0oconsecutively. The furthest excursion is at 5,1 meters along x-axis 0o load, while the shortest excursion is 1,5 meters along y-axis 120o load. The highest Roll motion reached 62,5o along the x-axis 90o load while pitch motion reached 15,5o along y-axis 120o load.

Analysis of Energy Efficiency of Rotate Flettner Rotor Based on Variation in Wind Direction and Rotor’s Material Jürgen Siegl; Irfan Syarief Arief; Akbar Rizqi Hartawan
International Journal of Marine Engineering Innovation and Research Vol 5, No 2 (2020)
Publisher : Institut Teknologi Sepuluh Nopember

Flettner rotor is a cylindrical object which installed vertically on the ship's body. It rotates on its axis to utilize the airflow from the wind and help the ship to generate additional thrust force by using the principle of magnus effect. This additional thrust force produced by the flettner rotor helps to reduce the fuel consumption which used as an energy source for the main or auxiliary engine. However, the flettner rotor has possibilities to operate in a certain different condition which can affect the efficiency of the flettner rotor usage. The discussion is to find out how much power is needed to rotate a rotor based on the variation of the material being used, how does the wind direction affect the performance of the flettner rotor as an alternative ship propulsion system, how does the energy efficiency get affected by the variation of material and the wind direction. From the discussion of this bachelor thesis, it is concluded that aluminum is the material that requires the least power to rotate a flettner rotor with 77,2276 kW on the speed of 14.4 rad/s and it gives its maximum contribution when the wind direction towards the flettner rotor is coming through the port side of the ship with the angle of 90 ° and the flettner rotor rotates in clockwise direction. It is also concluded that the best configuration of flettner rotor to produce a good energy efficiency are by using aluminum as the rotor’s material, having wind that coming through from the angle of 90°, and the flettner rotor rotates at 14.4 rad/s with apparent wind speed at 7.2 m/s. This configuration can save fuel consumption of the ship up until 570.768 kg on 5000 km voyage.

Influence of Leadership, Loyalty, and Followership on Team Performance of P.T. Gaharu Galangan International Endang Tri Pujiastuti; Hasri Nirmala Budiarti; Karina A. Sulaeman; Danny Faturachman; Rini Setiawati
International Journal of Marine Engineering Innovation and Research Vol 5, No 2 (2020)
Publisher : Institut Teknologi Sepuluh Nopember

Many factors are deemed influencing team or group performance. This research identifies influence of variables of leadership, followership and loyalty on team performance. This research is quantitative research on path analysis by using SPSS program. The result is loyalty and followers don’t have direct positive effect on team performance, but through leadership variable as intervening variable. Leadership variable has direct positive effect on team performance and loyalty, and followership variable has direct positive effect on leadership variable.

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Prof. Dr. Semin

Contact Email
seminits@gmail.com

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+6283856825999

Journal Mail Official
ijmeirjournal@gmail.com

Editorial Address
Department of Marine Engineering, Faculty of Marine Technology, Institut Teknologi Sepuluh Nopember Surabaya Indonesia

Location
Kota surabaya,

Jawa timur

INDONESIA

Abstract

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Prof. Dr. Semin

Contact Email seminits@gmail.com

Phone +6283856825999

Journal Mail Official ijmeirjournal@gmail.com

Editorial Address Department of Marine Engineering, Faculty of Marine Technology, Institut Teknologi Sepuluh Nopember Surabaya Indonesia

Location Kota surabaya, Jawa timur INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Prof. Dr. Semin

Contact Email
seminits@gmail.com

Phone
+6283856825999

Journal Mail Official
ijmeirjournal@gmail.com

Editorial Address
Department of Marine Engineering, Faculty of Marine Technology, Institut Teknologi Sepuluh Nopember Surabaya Indonesia

Location
Kota surabaya,

Jawa timur

INDONESIA