Improvement Approaches for the Combustion Process of Recent Diesel Natural Gas Dual Fuel Engines – A Technical Review

Semin, Semin; Felayati, Frengki Mohamad; Cahyono, Beny; Zaman, Muhammad Badrus

doi:10.15866/ireme.v13i3.15751

Cited by 3 publications

(5 citation statements)

References 19 publications

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“…By removing the intake valve from cylinder head of the Yanmar TF 85 MH engine, a real air intake valve size is obtained. Noteworthy in this step that the fixed-size fin size should not be rubbed against the valve sitting [28][29][30]. Process of manufacturing air intake valve by using the argon welding engine because the size of the air intake valve is tiny.…”

Section: A Modification Of Air Intake Valvementioning

confidence: 99%

“…At least, material to manufacture the fin addition have the same hardness with the material of air intake valve itself. Beware of intake valve sitting [29].…”

Section: A Modification Of Air Intake Valvementioning

confidence: 99%

“…Having discovered the highest power at maximum load then it can be further analyzed how about the highest power and the highest torque relation with the specific energy consumption needed to produce the best power and the best torque. Figure 8 shows the power produced by the engine on each variation of fuel (diesel engine and gas-oil fuel engine) in constant rpm and full load condition [25][26][27][28][29][30]. Based on Figure 8 it can be explained that the difference is quite high when the engine operates at a constant rpm at 2100 rpm and 2200 rpm for maximum load condition.…”

Section: B Effect Of Fin Adding On Dual Fuel Engine Performancementioning

confidence: 99%

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Analysis of the Effect of Intake Valve Fin Adding of Dual Fuel Engine on the Performance-Based Experiment

Semin

Bakar

Rfc

2020

Int. J. Adv. Sci. Eng. Inf. Technol.

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The modification of diesel engine into the dual-fuel engine or specifically gas-oil fuel engine has been done to solve the problem of the depletion fossil fuel oil reserves in the world. Fossil fuel oil reserves are projected to be exhausted in the next 50 years or less by prediction. The working system of the gas-oil fuel engine was injecting (gas fuel) to combustion chamber along with the air during the suction step in the intake manifold and burned with the diesel as the lighter. The gas fuel was used here is CNG (Compressed Natural Gas). But the performance of the engine when using the addition of gas fuel has decreased. The modification, like the addition of fixed fin in the air intake valve, is done to increase the swirl ratio. So, that turbulent flow of air comes in along with the gas fuel to be better. As a result, the combustion process in the combustion chamber got better. By applying a fixed fin addition into the air intake valve gas-oil fuel engine, it can increase engine performance better. The power generated by the engine with fin adding increases at maximum load. While torque of engine with fin adding increased in maximum load condition. For specific energy consumption (SEC) has been decreased impact of the fin, adding on the air intake valve.

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Section: A Modification Of Air Intake Valvementioning

confidence: 99%

“…At least, material to manufacture the fin addition have the same hardness with the material of air intake valve itself. Beware of intake valve sitting [29].…”

Section: A Modification Of Air Intake Valvementioning

confidence: 99%

Section: B Effect Of Fin Adding On Dual Fuel Engine Performancementioning

confidence: 99%

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Analysis of the Effect of Intake Valve Fin Adding of Dual Fuel Engine on the Performance-Based Experiment

Semin

Bakar

Rfc

2020

Int. J. Adv. Sci. Eng. Inf. Technol.

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“…Since its first discovery by Wärtsilä in 1995, the dual-fuel engine is now seen as a reliable technology for use on various ships, such as use on harbor tugs [15]. The use of LNG as a fuel can reduce NOx, SOx, and also CO2 significantly [16]. LNG is the best alternative fuel compared to other ship fuels because of the proportional cost, following the development of current engine types, and the availability of LNG sources.…”

Section: Introductionmentioning

confidence: 99%

“…LNG as a whole has almost no drawbacks, but LNG is non-renewable compared to hydrogen. The use of LNG as fuel in tugboats utilizes a fuel transfer system with pressure build up [15][16][17]. Ship must comply with MARPOL Annex VI especially harbor tug because there are people live near the port.…”

Section: Introductionmentioning

confidence: 99%

Modularization with Rule Based Algorithm in Three-Dimensional Design of Engine Room Layout Harbour Tug Diesel – LNG Dual Fuel Engine 2 × 2500 HP

Fathallah

Prasojo

Semin

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Implementation of the dual-fuel engine as ship main propulsion in Indonesia is low. There is a need for a study about the ship design process for dual fuel engine ship, especially for the engine room. Process and instrumentation diagram can’t give a whole picture of the real engine room, but three-dimensional can provide this. First, this study is to know about the process and instrumentation diagram on harbour tug diesel-LNG dual fuel engine 2 × 2500 HP. Second, this study is to know about the original, clustered, and reordered design structure matrix of all piping components. Third, this study is to know about three-dimensional design using modularization with rule-based algorithm. Components from the bilge & ballast system, oily water separator system, firefighting system, domestic supply and discharge system, marine diesel fuel oil system, LNG fuel oil system, lubricating oil system, cooling system, and compressed air system are inserted in original DSM. The rule-based algorithm is for clustering and reordering. At the end of the original, clustered, and reordered DSM there is a need for the objective function and sum value calculation. In this study, DSM modeler is used to do the clustering and reordering process included in one by clicked clustering algorithm feature. So, in this study is decided that reordering process is done manually using the workflow of the system to ensure that clustering algorithm feature can give clustered and reordered DSM, by compared the objective function and sum value from the original, clustered, and reordered DSM. The result of the objective function and sum value comparison always give less value than the original and clustered DSM. Clustered and reordered DSM had the same value. Sometimes the objective function and sum value of reordered DSM is greater than clustered DSM, which means there is human error when manually reordering the clustered DSM. Less value of the objective function and sum value DSM is used to create three-dimensional. Components that are included in one cluster need to be located nearly. Modularization with rule-based algorithm is applicable in three-dimensional design engine room layout.

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Numerical study of dual fuel engine using proportional natural gas split injection

Felayati¹,

Semin²,

Cahyono³

et al. 2019

AIP Conference Proceedings

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Improvement Approaches for the Combustion Process of Recent Diesel Natural Gas Dual Fuel Engines – A Technical Review

Cited by 3 publications

References 19 publications

Analysis of the Effect of Intake Valve Fin Adding of Dual Fuel Engine on the Performance-Based Experiment

Analysis of the Effect of Intake Valve Fin Adding of Dual Fuel Engine on the Performance-Based Experiment

Modularization with Rule Based Algorithm in Three-Dimensional Design of Engine Room Layout Harbour Tug Diesel – LNG Dual Fuel Engine 2 × 2500 HP

Numerical study of dual fuel engine using proportional natural gas split injection

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