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Institut Teknologi Sepuluh Nopember
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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.
Possibility of Piezoelectric Sensor to Monitor Onshore Pipeline in Real Time Monitoring Nurhadi Siswantoro; Aydin Dogan; Dwi Priyanta; Muhammad Badrus Zaman; Semin
International Journal of Marine Engineering Innovation and Research Vol. 3 No. 4 (2019)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v3i4.6048

Abstract

Transportation oil and gas mostly used pipelines transportation. The condition of a pipeline must be continually monitored to ensure that defects do not cause it to fail and operate optimally. Pipeline has the possibility to experience defects during operations such as general corrosion, fatigue, crack, and others. Defects that occur in the pipeline during operation have serious consequences including loss of property, personal injury, or even loss of lives and serious ecological pollution. Awareness of the importance of conducting pipeline monitoring and safety issues for workers and residents around the pipeline site, emphasizes the importance of developing a technology for conducting pipeline monitoring activities in real time. The new technology for detecting metal defects is by using piezoelectric material. Based on laboratory scale, piezoelectric sensor can be applied to monitor pipeline defect. However, it is necessary challenges to scaling up in real application are following: (1) financial investment, (2) human behavior surrounding pipeline area, (3) receiving signal in long distance, (4) protection of piezoelectric sensor, (5) combination survey for future development.
The Effect of Mixing Diesel Fuel with Cottonseed Oil and Coconut Oil on The Performance of 4-Stroke Diesel Engine Adhi Iswantoro; Aguk Zuhdi Muhammad Fathallah; Semin; Ramdhan Febrianto Saputra
International Journal of Marine Engineering Innovation and Research Vol. 3 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.v3i3.6056

Abstract

Research on biodiesel as an alternative fuel has been widely carried out. Such as mixing one type of oil mixed with diesel fuel with a certain composition. In this research, biodiesel was made by mixing two types of oil and then mixed with diesel fuel with a composition of 30:80, where 30% for mixed oil that is cottonseed oil and coconut oil, then 80% for diesel fuel. And then in this research, the composition between cottonseed oil and coconut oil must be found, so that it will get the best composition between cottonseed oil and coconut oil. For comparison in performance between mixed biodiesel with 4 cSt and 6 cSt, and in the mixing process, using mathematical calculation methods, then the mixing results must meet SNI standards (Standard Nasional Indonesia / Indonesian National Standards). In this research, 4-stroke diesel engines with one cylinder were used. From the experiments and data analysis, biodiesel with 6 cSt more powerful, torsion and BMEP better than mixed biodiesel 4 cSt.
Analysis of Biodiesel Cotton Seed Oil on Diesel Engine Performance Semin; Adhi Iswantoro; Gage Cendekiaji Hadi
International Journal of Marine Engineering Innovation and Research Vol. 2 No. 4 (2018)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v2i4.6080

Abstract

The world crisis of fossil fuel availability encourages the development to explore alternative energy which is possible to replace of fossil fuel. The use of biodiesel by using vegetable oil and animal fats is strived to the maximum extent possible, in order to maintain its sustainability. Cotton Seed oil (Ceiba Pentandra) is one alternative that can be used as a substitution fuel. There are four advantages of using Cotton Seed oil as a substitute fuel which are: produce a low level of pollutant, guaranteed availability, can be used for diesel engines with less or no modification and in certain mixes can increase engine lubrication that should increase engine life. The research was conducted through performance test of YANMAR TF85-MH diesel engine using Cotton Seed oil biodiesel with mixture of B30, B20 which has been compared with using diesel oil. From the results of experiment, it showed that the use of Cotton Seed oil has been increase performance than diesel fuel. The addition of biodiesel Cotton Seed oil percentage into the fuel provide greater power but it provides the higher fuel consumption.
Designing Passive Harmonic Filter of Electric Propulsion System on Tanker Ship Indra Ranu Kusuma; Semin; Muhammad Badrus Zaman; Faisal Muhammad Satrio
International Journal of Marine Engineering Innovation and Research Vol. 2 No. 3 (2018)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v2i3.6086

Abstract

Harmonic is a frequency defect that have some negative effect to the electrical network system. In a ship, electrical network system are interconnected to each other to another electrical consumer device. The effect will impact all the device that connected to the electrical network system. This can be reducing the consumer devices reliability. This research analyzed and simulate the effect of harmonic when there is no harmonic filter condition and with a passive harmonic filter for each operating condition on this ship. This research also includes the comparison diagram between no filter and with a passive harmonic filter condition, and some simulation report from the software. The research results were VTHD value are need to be comply with the classification standards and rules. Passive harmonic filter can reduce the VTHD value by reducing a specific harmonic order and the impact from reducing specific harmonic order can reduce the other harmonic order. Besides that, passive harmonic filter also can gain a higher power factor (PF) value.
Technical Review of Fin Addition Analysis of Air Intake Valve on Gas-Oil Fuel Engine Semin; Linggar Palang Aras RFC; Beny Cahyono; Nilam Sari Octaviani
International Journal of Marine Engineering Innovation and Research Vol. 2 No. 3 (2018)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v2i3.6090

Abstract

Modification of single-fuel diesel engine into dual-fuel diesel engine has been done by researchers to solve the problem of depletion petroleum reserves. Even the problem petroleum reserves are projected to be exhausted in the next 50 years. Gas-Oil fuel engine focus on solar-CNG as a fuel. Explanation of the difference in the fuel ratio of diesel engines with Gas-Oil fuel diesel engines has considerable differences. The factors that are discussed here are the factors of mixing air and fuel. The amount of fuel in the Gas-Oil fuel diesel engine causes an increase in the gas fuel mass flow rate (CNG), although with the addition of fuel gas, the mass flow rate of diesel oil is reduced. In this paper, the Gas-Oil fuel engines research and development fueled using solar-CNG are highlighted to keep the performance of the engine. Modification focused on air intake valve to give maximum turbulent flow ratio and effect on increasing Gas-Oil fuel engine performance. The high activities for future Gas-Oil fuel engines research and development to meet future Gas-Oil fuel engine solar-CNG is recorded in the paper.
Analysis of Influence of Masks Flow on Intake Valve of Gas and Oil Fuel Engine Based Simulation Semin; Mohammad Azzam Satriawansyah; Beny Cahyono; Nilam Sari Octaviani
International Journal of Marine Engineering Innovation and Research Vol. 2 No. 3 (2018)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v2i3.6091

Abstract

Turbulent flow in the combustion chamber affects the combustion process which also affects the engine performance. The turbulent flow intensity can increase the duration of combustion, but too much turbulent turbulent flow leads to a tap. In addition, turbulent flow also contributes to the gas-water mixing process. There are two types of turbulent flow that occur inside the machine, which is a current vortex and a falling current. The current whirl is better known as the swirl flow and the falling current is better known as the tumble flow. The fluid flow in the combustion chamber can be adjusted by optimizing the engine components and developing the engine design. A review has been made of the vortex and Tumble flow on a luminous spark machine and its effect on turbulence and fire propagation. From several journals available to create tumble and swirl streams in the combustion chamber, they use modifications to the intake valve by adding vin to create a swirl stream and adding a mask to create a tumble stream. to know the experiment was successful or not, first modeling and then perform simulation using CFD Ansys Fluent. for the variables choose 3mask, 4mask, and 5mask (for addition of mask) which later dilih air flow formed by the addition of mask.
Technical Overview Of Biogas Utilization as Fuel of Boat Engine Nilam Sari Octaviani; Semin
International Journal of Marine Engineering Innovation and Research Vol. 2 No. 2 (2018)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v2i2.6120

Abstract

The depletion of world energy reserves and the increasing levels of environmental pollution, increase human creativity. Discoveries on environmentally friendly renewable energy-making technologies are increasingly widespread. One of them is the manufacture and utilization of biogas as an alternative fuel. Biogas is one of renewable energy sources with bio gas production process from organic material like cattle dung with the help of bacteria decomposers. By conducting a literature study on biogas utilization and calculation analysis, biogas application was applied as an outboard fuel engine with 10 horse power in a boat capable of crossing for 10 minutes with a capacity of 1 to 2 passengers, such as private boats owned by coastal communities or boats used by traders on floating markets in the Kalimantan area.
Analysis of Three Phases Asynchronous Slip Ring Motor Performance Feedback Type 243 Sardono Sarwito; Semin; Achmad Suherman
International Journal of Marine Engineering Innovation and Research Vol. 2 No. 1 (2017)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v2i1.6122

Abstract

Induction motor is an Alternating Current Electric Motor (AC), this motor most widely used. There are two types of rotor on three-phasess asynchronous motor, the squirrel-cage rotor and the slip ring rotor. Every motor has its own characteristic, it have been affect the used of the motor. In this research is aiming to know three-phasess asynchronous slip ring motor performance on unloaded and loaded condition. On its condition, the variation resistance starting from 0(ohm) - 25(ohm). The results of three-phasess asynchronous slip ring motor on unloaded condition having maximum output power 58 W and maximum torque 0.22 Nm in 25(ohm) of resistance. While in the condition loaded having a maximum Pin 131,5 W, maximum Pout 109,31 W, maximum torque 2,08 Nm and maximum efficiency 95%. The analysis was done by knowing the relation between torque vs speed and efficiency vs load. The result shows that the increasing of motor speed have been give affect the decreasing of motor torque in according with the torque formula. In the other result, it can be seen that increasing of the load, efficiency have been increase.
Effect of Water Fuel Emulsion on Performance and NOx Emissions of Diesel Engine Beny Cahyono; Aguk Zuhdi Muhammad Fathallah; Semin; Nauval Pahlevi
International Journal of Marine Engineering Innovation and Research Vol. 1 No. 4 (2017)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v1i4.6159

Abstract

NOx as one of the exhaust emissions is harmful to human health. Many methods can reduce NOx emissions, one of them is water in fuel emulsion. By using experiment, research has been conducted in surfactant selection. The results of experiment show 4 surfactant, which is best used to the diesel engine is tween 80 and span 80. This experiment needs some water contents variation emulsifier with 10%, 15%, and 20%. In this different variation of water is very influential on performance and NOx emissions. By using water fuel emulsion of 10% in SFOC has been increase 216,2 g/Kwh or 11.6% compared to Pertamina Dex of fuel. However, the water used in fuel emulsion of 15% and 20% in SFOC increased to compare 10% emulsion. The effect of water use in fuel emulsion has been reduce NOx emission. Water in fuel emulsion has been decrease 50.5%. Generally, the emission level of a diesel engine that using water in fuel emulsion has been improved until entering on Tier 3 specification of IMO rules.
Co-Authors Achmad Suherman Adhi Iswantoro Afanda Dwi Ragil Risnavian Agoes Santoso Aguk Zuhdi M. Fathallah Ahmad Ilham Ramadhani Arif Winarno Aydin Dogan Bambang Sampurno Barokah Barokah Cahyono, Beny Djoko Paritono Widodo Ede Mehta Wardhana Erik Sugianto Faisal Muhammad Satrio Faris Mishbahul Muhammad Fatekhun Faris Fathallah, Aguk Zuhdi Muhammad Frengki Mohamad Felayati Gage Cendekiaji Hadi Hadi Prasutiyon Hari Prastowo Himmawan Aan Listyanto Indra Ranu Kusuma Irfan Syarief Arief Istiqomah Linggar Palang Aras RFC M. Badrus Zaman Meitha Soetardjo Mohammad Azzam Satriawansyah Mohammad Bintang Fikri Muhammad Badrus Zaman Muhammad Hadrian Deswandi Jefrimananda Nauval Pahlevi Ngizuddin Masro’i Nilam Sari Octaviani Nurhadi Siswanto Priyanta, Dwi Ramdhan Febrianto Saputra Rosli Abu Bakar Sardono Sarwito Sutopo Purwono Fitri Taruno Ganggas Daruadji Baskoro Toto Soeharmono Trika Pitana Wiwin Rohmawati Yudha Prasetiyo