cover
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota surabaya,
Jawa timur
INDONESIA
International Journal of Marine Engineering Innovation and Research
ISSN : -     EISSN : -     DOI : -
Arjuna Subject : -
Articles 145 Documents
Content & back Cover Marine Engineering Innovation and Research, International Journal of
International Journal of Marine Engineering Innovation and Research Vol 2, No 4 (2018)
Publisher : Institut Teknologi Sepuluh Nopember Surabaya 60111, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (124.708 KB) | DOI: 10.12962/j25481479.v2i4.4336

Abstract

Analysis of Erosion Rate on Discharge Slurry HDPE Pipe in Canal Water Intake PLTGU Grati using CFD Simulation Santoso, Agoes; Ilmi, Bahrul
International Journal of Marine Engineering Innovation and Research Vol 2, No 4 (2018)
Publisher : Institut Teknologi Sepuluh Nopember Surabaya 60111, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (556.588 KB) | DOI: 10.12962/j25481479.v2i4.4063

Abstract

The dredging of the canal water intake at PLTGU Grati is an effort to maintain the depth of the reduced canal due to sedimentation. The dredging process itself uses a cutter suction dredger. To distribute mud or slurry (a mixture of water and sand) result of dredging to dumping area of  PLTGU Grati using HDPE (high-density polyethylene), as pipe material, hence pipe does not wear due to corrosion but erosion. Basically, erosion is caused by impact of solid particle (sand) which is suspended inflow (multiphase) on a solid wall boundary. Wear caused by erosion itself is recognized as one of the problems in some industries that distribute slurry in their process. This research thesis analyzes and predicts the rate of erosion occurring in HDPE pipes that are transported slurry from the sedimentation dredging in PLTGU Grati using CFD (computational fluid dynamic) method. Variations of slurry concentration, impact angle, particle diameter and velocity of the slurry has been be performed to determine the effect on the rate of erosion. The results of this research thesis showed that the concentration of slurry, impact angel, diameter of particle and the concentration of the slurry were directly proportional to the rate of erosion on the HDPE pipe.
Editorial Board Marine Engineering Innovation and Research, International Journal of
International Journal of Marine Engineering Innovation and Research Vol 4, No 2 (2019)
Publisher : Institut Teknologi Sepuluh Nopember Surabaya 60111, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (29.467 KB) | DOI: 10.12962/j25481479.v4i2.5954

Abstract

Cooling System Design for Cold Storage of Traditional Fishing Boat Using Insulation from Rice Husk Abidin, Muhammad Abidin; Baheramsyah, Alam; Wardhana, Ede Mehta
International Journal of Marine Engineering Innovation and Research Vol 3, No 1 (2018)
Publisher : Institut Teknologi Sepuluh Nopember Surabaya 60111, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (521.098 KB) | DOI: 10.12962/j25481479.v3i1.2501

Abstract

Quality of fish is an important factor and determines the high selling price of fish in the market. In achieving that it will require proper handling in the process of cooling the fish before it is sold. To keep the freshness of the fish, fishermen usually use Styrofoam-based coolbox as its isolation. In this study modify coolbox using rice husk which serve as insulation on coolbox. This study aims to determine the effect of insulation using rice husk over time and temperature which will be compared with Styrofoam coolbox. Before the experiment, the first thing to do is to test the composition of rice husk with white cement. Where is the best composition to be used as insulation on coolbox. The tests are thermal conductivity, density, and flexural strength tests. From the test results obtained the best composition of rice husk and white cement is 1: 1 which has a thermal conductivity (0.746 W / mK) and density (0.32 gr / cm3) better than other compositions. In the experiments performed using 3 kg of wet ice it was found that in 24 hours cooling time, the rice husk coolbox had the lowest temperature of 13.5 ° C and the lowest Styrofoam coolbox temperature was 10.6 ° C.
Development of Marine Loading and Unloading System for Ro-Ro Vessel Amiadji, Amiadji; Musriyadi, Tony Bambang; Sunarsih, Sunarsih; Rizaldi, Arie Nanda
International Journal of Marine Engineering Innovation and Research Vol 4, No 3 (2019)
Publisher : Institut Teknologi Sepuluh Nopember Surabaya 60111, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (111.195 KB) | DOI: 10.12962/j25481479.v4i3.5454

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.
Risk Assessment in Financial Feasibility of Tanker Project Using Monte Carlo Simulation Zaman, Muhammad Badrus; Priyanta, Dwi; Trisilo, Filik
International Journal of Marine Engineering Innovation and Research Vol 1, No 4 (2017)
Publisher : Institut Teknologi Sepuluh Nopember Surabaya 60111, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (715.14 KB) | DOI: 10.12962/j25481479.v1i4.2703

Abstract

Every ship project would not be apart from risk and uncertainty issues. The inappropriate risk assessment process would have long-term impact, such as financial loss. Thus, risk and uncertainties analysis would be a very important process in financial feasibility determination of the project. This study analyzes the financial feasibility of 17,500 LTDW tanker project. Risk and uncertainty are two differentiated terminologies in this study, where risk focuses on operational risk due to shipbuilding process nonconformity to shipowner finance, while uncertainty focuses on variable costs that affect project cash flows. There are three funding scenarios in this study, where the percentage of funding with own capital and bank loan in scenario 1 is 100% : 0%, scenario 2 is 75% : 25%, and scenario 3 is 50% : 50%. Monte Carlo simulation method was applied to simulate the acceptance criteria, such as net present value (NPV), internal rate of return (IRR), payback period (PP), and profitability index (PI). The results of simulation show that 17,500 LTDW tanker project funding by scenario 1, 2 and 3 are feasible to run, where probability of each acceptance criteria was greater than 50%. Charter rate being the most sensitive uncertainty over projects financial feasibility parameters.
Development of Marine and Coastal Tourism Based on Blue Economy Tegar, Dimas; Saut Gurning, Raja Oloan
International Journal of Marine Engineering Innovation and Research Vol 2, No 2 (2018)
Publisher : Institut Teknologi Sepuluh Nopember Surabaya 60111, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (174.428 KB) | DOI: 10.12962/j25481479.v2i2.3650

Abstract

Marine and coastal tourism as one of the largest segments of the maritime economy sector, as well as the largest component of the tourism industry, often leads to controversy over environmental  impact  and  compatibility  with  other  human  activities.  The  application  of economic  and  tourism concepts  that  are  oriented  towards  environmental  conservation  and natural resources is one option to overcome the problem. The Blue Economy concept offers an economic concept based on ecosystem principles, where the development will not only generate economic growth but also ensure ecological and social sustainability. In addition, the concept of ecotourism also offers a tourism activity that prioritizes aspects of nature conservation and improving the welfare of the community
Study Of Calculation Of Degaussing System For Reducing Magnetic Field From Submersible Vehicle Sarwito, Sardono; Prananda, Juniarko; Koenhardono, Eddy Setyo; Kurniawan, Anggela Wahyu
International Journal of Marine Engineering Innovation and Research Vol 1, No 2 (2017)
Publisher : Institut Teknologi Sepuluh Nopember Surabaya 60111, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (418.82 KB) | DOI: 10.12962/j25481479.v1i2.1979

Abstract

The rapid development of maritime technology in the world to make Indonesia are also increasingly taking the development of maritime technology, such as in a Submersible Vehicle one is degaussing system, this technology should be owned by the vessel so that the vessel can avoid dangerous explosive equipment contained in the sea. Degaussing system is a system that is in use on the metal parts or electronic devices that are at risk of a magnetic field. This system is used to prevent the vessel from dangerous equipment in the sea which can trigger an explosion and the damage that utilize magnetic fields as a metal-detection sensor when the boat was doing dives. To the authors will plan the design degaussing system, and calculating the system in order to reduce the magnetic properties of the Submersible Vehicle which were obtained by the use of Coil Degaussing along 214,5 meters, a diameter of 0,2, with 500.000 coil that will generate a current of 0,0157 Amperes 0.0787 Tesla generates a magnetic field.
Efficiency Analysis of Additions of Ice Flake in Cargo Hold Cooling System of Fishing Vessel Amiadji, Amiadji; Jadmiko, Edi; Prasetyo, Yosef Novian
International Journal of Marine Engineering Innovation and Research Vol 1, No 3 (2017)
Publisher : Institut Teknologi Sepuluh Nopember Surabaya 60111, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (253.546 KB) | DOI: 10.12962/j25481479.v1i3.2033

Abstract

As a maritime nation, the majority of people's livelihood in Indonesia coast is as a fishermen. The process of preserving fish after being caught will determine how good the product quality. One of process on preserving fish that can be done is to perform the cooling process using a cooling machine on board. Refrigeration system certainly requires high electrical power consumption. That high power usage can be reduced as much as possible, one of which is to add chopped ice (ice flake) on a fishing boat cargo space. So that the load for cooling can be reduced.The purpose of this thesis is to find out how the influence of the addition of ice flake on cooling load in the cargo hold of fishing vessels, and to know how much power is used when the cooling machine is combined with the addition of ice flake. In this analysis cooling load calculation refers to the standard ISO 7547.from the results of analysis found that the addition of ice flake on cargo space can reduce cooling load and can reduce electricity consumption day in the main vessel for the addition comparison flake ice and fish weight of 1: 1.
Analysis of the Suppression Device as Vortex Induced Vibration (VIV) Reducer on Free Span using Finite Element Method Priyanta, Dwi; Abdullah, Anang
International Journal of Marine Engineering Innovation and Research Vol 1, No 1 (2016)
Publisher : Institut Teknologi Sepuluh Nopember Surabaya 60111, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (384.48 KB) | DOI: 10.12962/j25481479.v1i1.1387

Abstract

Subsea pipeline is a transportation infrastructure of oil and gas as an alternative for ship tanker. The uneven topography surface of the sea floor resulting the pipe undergoes free span. The free span is a condition endured by the pipe where the pipe position has  distance or gap with the seabed supported by two pivot. The free span is at risk of experiencing a vibration caused by the presence of dynamic load that is current and the wave. The vibration that occurs is the impact of the presence of the phenomenon of Vortex Induced Vibration (VIV). The Phenomenon Of VIV occur on a cylindrical component caused by ocean currents, causing the occurrence of vibration by the movement of fluid on the pipe so that it raises the vortex at the rear of the direction of oncoming flow. One way to dampen or reduce the impact of VIV is by adding suppresion device. VIV suppression device is a tool that is installed on the pipeline on offshore piping installationcthat serves to dampen or reduce the impact of VIV. One of the simulations used to know the characteristics of a fluid is to use (CFD) Computational Fluid Dynamic. With the addition of suppression device can add the rest of the operating time on a free span of affected VIV, on the condition of free span critical exposed VIV (Vortex Induced Vibration value) has a life time on plain pipe 44.21 years, on pipe with 53.09 years and Fairing on the pipe with the Helical strike 52.95 year.

Page 1 of 15 | Total Record : 145