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All Journal Jurnal Teknik ITS International Journal of Marine Engineering Innovation and Research Sewagati

Cahyono, Beny

Department Of Marine Engineering, Faculty Of Marine Technology, Institut Teknologi Sepuluh Nopember, Surabaya 60111

Author-ID : 797374

Humanities Automotive Engineering Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Transportation

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Kajian Kelayakan Pemilihan Teknologi Reliquefaction Plant atau MSO Compressor Sebagai Alternatif Pemanfaatan Boil Off Gas (BOG) Pada FSRU 170.000 m³ Hanif Nur Fauzi Margono; I Made Ariana; Beny Cahyono
Jurnal Teknik ITS Vol 9, No 2 (2020)
Publisher : Direktorat Riset dan Pengabdian Masyarakat (DRPM), ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23373539.v9i2.56938

Boil Off Gas (BOG) merupakan gas yang terbentuk karena adanya panas yang masuk (heat leak) kedalam tangki Liquefied Natural Gas (LNG). Evaporasi yang terjadi secara terus menerus dapat meningkatkan tekanan pada tangki, menyebabkan tekanan berlebih yang berbahaya. BOG tersebut harus dimanfaatkan atau dibuang melalui proses pembakaran untuk menjaga tekanan tangki muatan. BOG yang dibuang merupakan sebuah kerugian bagi perusahaan. Pada FSRU ini memiliki nilai rata – rata BOG perharinya sebesar 92.714,936 m³n Gas dan boil off rate 0,237%. Pemanfaatan BOG pada FSRU digunakan untuk bahan bakar generator DFDE dan boiler dengan nilai rata – rata perharinya 837,363 MMBTU, sehingga memiliki nilai BOG berlebih rata – rata perharinya 2.823,184 MMBTU. Metode pemanfaatan BOG berlebih dengan melakukan reliquefaction, atau langsung menyalurkannya ke linepack offshore pipeline menggunakan MSO compressor. Dalam pemilihannya, menggunakan reliquefaction plant Wartsila HGS Mark III, menggunakan siklus kerja inverse brayton, berkapasitas 7.000 kg/h. Sedangkan untuk MSO compressor menggunakan BOG kompresor Burckhard Laby GI Compressor LP250 4 stages, kapasitas 10.000 kg/h. Berdasarkan aspek ekonomis penggunaan MSO compressor memiliki nilai CAPEX dan OPEX lebih rendah, tetapi secara nilai NPV, IRR dan PP penggunaan reliquefaction plant memiliki nilai lebih baik. Sedangkan berdasarkan kondisi operasional FSRU, reliquefaction plant lebih cocok secara teknis untuk digunakan.

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

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.

Effect of Biodiesel Candlenut Seed (Aleurites Moluccana) to NOx Emission and Combustion Process on Single Cylinder Diesel Engine Beny Cahyono; Aguk Zuhdi Muhammad Fathallah; Vianto Ilham Pujinaufal
International Journal of Marine Engineering Innovation and Research Vol 3, No 2 (2018)
Publisher : Institut Teknologi Sepuluh Nopember

Fossil fuels are non-renewable fuels but are still the main fuel choice however, it is now becoming increasingly recognized that the availability of fossil fuels are dwindling which further encourages research on renewable fuels. One of the renewable fuels under development and research is biodiesel. The use of vegetable and animal oil is one of the primary choices to decrease the use of non-renewable fuels. Candlenut oil is one of the alternatives under research and development to produce biodiesel as a replacement for non-renewable fuels. In this research is expected to know the NOx emission level and combustion process of single cylinder diesel engine using candlenut oil biodiesel and compared with diesel fuel High-Speed Diesel (HSD). The results of NOx emission comparison between biodiesel candlenut and HSD showed an increase of 0.76 gr / kWh for biodiesel candlenut and 0.51 gr / kWh for HSD fuel. In the burning process test results showed the knocking value of better candlenut biodiesel than HSD which is 5.69 bar for biodiesel candlenut and 6.19 bar for HSD fuel.

Analysis of Noise and Vibration on Single Cylinder Four Stroke Engine with Green Diesel Fuel Based on Simulations Beny Cahyono; Aguk Zuhdi M. Fathallah; Muhammad Hadrian Deswandi Jefrimananda; Semin Semin
International Journal of Marine Engineering Innovation and Research Vol 6, No 1 (2021)
Publisher : Institut Teknologi Sepuluh Nopember

One of the alternative and renewable energies is green diesel. Despite the fact that both use the same raw material, vegetable oil, the processes for producing green diesel and biodiesel are somewhat different. Green diesel is generated via the hydrotreating process, which involves injecting hydrogen gas into an oil to remove oxygen. The combustion process in the engine is influenced by the nature of the fuel. Green diesel fuel has a higher yield of material than biodiesel fuel. High pressure caused by combustion in the engine combustion chamber affects the vibrations and noises of diesel engines. By varying engine speed and load, this study compares noise and vibration produced by green diesel fuel to biodiesel B30 using a simulation process. The results showed that green diesel fuel produces more noise and vibration than biodiesel B30 fuel and that this is directly proportional to the pressure and power produced in the combustion chamber by the green diesel fuel combustion process. As the pressure in the combustion chamber rises, the explosion becomes more powerful, resulting in increased diesel engine noise and vibration.

Experimental Analysis of Gas Split Injection Effect on Dual-Fuel Engine Performance Semin Semin; Beny Cahyono; Yudha Prasetiyo; Frengki Muhammad Felayati
International Journal of Marine Engineering Innovation and Research Vol 6, No 2 (2021)
Publisher : Institut Teknologi Sepuluh Nopember

The application of a dual-fuel engine has massively been used as the main engine. However, in dual-fuel engine operations, problems occur in low-load operations. The combustion quality with unstable combustion conditions and relatively low thermal efficiency. In this research, a gas split injection strategy was implemented on the dual-fuel engine. The purpose of this research is to compare the performance of the engine between dual-fuel operations using gas split injection strategy and single injection. Furthermore, split injection is a fuel injection system by dividing the injection into several injection stages with a certain mass and period. This injection system was applied on a dual-fuel engine system, which was previously a modification of the conventional diesel Yanmar TF 85 MH. The variation in this study is the injection split ratio (ISR) 75-25, variations in injection time, and variations in load with specified engine speed at 2000 RPM. The results obtained in this study are the best variations found in ISR 75-25 gas split injection with injection distance at 260°bTDC & 244°bTDC. Due to the injection distance, a significant difference occurred in all parameters tested between single injection and split injection. The significance of the difference in power, torque, BMEP, SFOC, and the thermal efficiency only occurs at 100% load, which is 4.3%; 4.2%; 4.2%; 16%; 18.3%.

Technical Review of Fin Addition Analysis of Air Intake Valve on Gas-Oil Fuel Engine Semin Semin; Linggar Palang Aras RFC; Beny Cahyono; Nilam Sari Octaviani
International Journal of Marine Engineering Innovation and Research Vol 2, No 3 (2018)
Publisher : Institut Teknologi Sepuluh Nopember

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.

The Modification Effect of Piston Crown on Four Stroke One Cylinder Diesel Engine using Biodiesel B30 on Noise Based on Simulation. Beny Cahyono; Adhi Iswantoro; Ilham Rezandhi Akbar
International Journal of Marine Engineering Innovation and Research Vol 5, No 4 (2020)
Publisher : Institut Teknologi Sepuluh Nopember

Piston is one of the important parts in the combustion process in a diesel engine, it consists of two namely the piston head and connecting rod, where the piston head consists of three parts, namely the piston crown, piston rings, and piston pins. This paper wants to prove which is more effective in modifying the TCC piston crown shape on a four-Stroke one-cylinder diesel engine fueled with B-30 in terms of noise. To measure noise, several experiments were carried out. One way is to use an application that can help make measurement easier is to use the simulation. The Simulation can measure the level of noise by using the tools in an application the same as in reality. The piston area is very influential on the combustion process, with the greater piston area, the resulting explosion is greater which results in and produces a high pressure also it is directly proportional to the noise level. After everything is measured, then we compare it with the engine's performance and give maximum results between the level of noise with engine performance. The result is using a piston case 4 (+1) which has a larger area experiencing the highest noise level using B30 Diesel Fuel or High-Speed Diesel (HSD) Fuel. Under load conditions, with a 50% load, the noise level on piston +1 (Case 4) experiences the highest noise level using B30 Diesel Fuel or High-Speed Diesel (HSD) Fuel.

Effect of Biodiesel B30 on Deposit Forming and Wear Metal of Diesel Engine Components Zeka Angger Hartono; Beny Cahyono
International Journal of Marine Engineering Innovation and Research Vol 5, No 1 (2020)
Publisher : Institut Teknologi Sepuluh Nopember

Alternative fuels for diesel engines have attracted the world's attention as an impact of the world energy crisis. For this reason, alternative fuel is needed to reduce the need for fossil fuels. Biodiesel fuel with the raw material of palm oil is the once alternative fuel to replace diesel fuel. This is because Indonesia is the largest producer of crude palm oil (CPO) in the world. But, the use of vegetable oil biodiesel can affect losses to engine lifetime. It can increasing metal wear rates in diesel engines. The experiment carried out by running diesel engines for 200 hours with Engine Manufacturer’s Association (EMA) standard. B30 palm oil biodiesel affected the wear metal contact in diesel engines. Aluminum content in used lubricating oil fueled by B30 palm oil biodiesel is 19.8% greater, iron content 0.75% greater, and chromium content greater than metal content in used lubricating oil fueled by diesel fuel. In addition, the use of B30 palm oil biodiesel causes a larger piston ring gap and worse condition on journal bearing. But, deposit forming in the diesel engine components fueled by B30 palm oil biodiesel is 4.27% lower than diesel fuel. It can be concluded that the use of B30 palm oil biodiesel causes greater metal wear than the use of diesel fuel.

Techno-economic Analysis in the Modification of 100 TEUs Container Carrier by Using LNG as Dual Fuel System Agoes Santoso; Beny Cahyono; Edi Jadmiko; Kevin Garsia
International Journal of Marine Engineering Innovation and Research Vol 4, No 1 (2019)
Publisher : Institut Teknologi Sepuluh Nopember

Indonesia is no longer known as an oil exporter country but Indonesia has a large deposit of natural gas. This situation will bring the conversion from using fuel oil to gas. It will also support IMO Regulation such as MARPOL 73/78 Annex VI Tier III which was stringent in the regulation to bring the world to achieve near zero emission level. One of the methods to comply with IMO tier III is using gas as a fuel. Therefore, the ship efficiency can be overcome by two aspects simultaneously, cheaper and cleaner gas as marine engine fuel. In this paper, LNG as fuel will be applied to 100 TEUs Container Carrier which is consider several technical aspects when the existing ship is modified so that natural gas can be used safely and well. Things to consider in this LNG re-design are; the volume of tank, bunkering station system, and the Gas Valve Unit (GVU). In addition, this design will also analyze the costs required to modify the vessel so that it can use dual fuel (MDO and LNG) as well as cost comparison when using single fuel (MDO).

Analysis of Influence of Masks Flow on Intake Valve of Gas and Oil Fuel Engine Based Simulation Semin Semin; Mohammad Azzam Satriawansyah; Beny Cahyono; Nilam Sari Octaviani
International Journal of Marine Engineering Innovation and Research Vol 2, No 3 (2018)
Publisher : Institut Teknologi Sepuluh Nopember

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.

Co-Authors Abi Suroso, Muhammad Suryo Panotogomo Adhi Iswantoro Agoes Santoso Aguk Zuhdi M. Fathallah Barokah Barokah Edi Jadmiko Faris Mishbahul Muhammad Fathallah, Aguk Zuhdi Muhammad Frengki Mohamad Felayati Hanif Nur Fauzi Margono Hardianto, Mochamad Choirul Harifuddin Harifuddin I Made Ariana Ilham Rezandhi Akbar Istiqomah Istiqomah Kevin Garsia Linggar Palang Aras RFC Mohammad Azzam Satriawansyah Muhammad Hadrian Deswandi Jefrimananda Nilam Sari Octaviani Nugroho, Dwi Oktavianto Wahyu Nurhadi Siswanto Semin Semin Semin Semin Semin Semin Semin Semin Semin Semin Semin Semin Semin Trika Pitana Vianto Ilham Pujinaufal Yudha Prasetiyo Zeka Angger Hartono

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