The effect of additive on combustion characteristics and cycle to cycle variations on si engine fueled by gasoline and bioethanol

Abikusna, Setia; Sugiarto, Bambang; Monasari, Ratna; Yamin, Iqbal

doi:10.15587/1729-4061.2018.147585

Cited by 7 publications

(4 citation statements)

References 10 publications

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“…Fuel-booster dapat meningkatkan sifat dasar dan angka oktan bahan bakar sehingga performa mesin meningkat [7][8][9][10][11][12]. Zat aditif adalah bahan yang mampu meningkatkan reaksi kimia antara Hidrokarbon dan Oksigen menjadi udara bakar [8].…”

Section: Pendahuluanunclassified

“…Koefisien ikatan kovalen rantai hidrokarbon meningkat dan meningkat pada ikatan atom Hidrokarbon-Oksigen. Zat tersebut mampu memperbaiki sifat dasar daya bakar dan mengurangi knocking di ruang bakar saat sebelum langkah kompresi [10] [12]. Kemudian secara chemical reaction mampu meningkatkan nilai potensi hidro-karbon dan menguntungkan pada pemakaian oktan tinggi (RON).…”

Section: Pendahuluanunclassified

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Perbaikan Performa Mesin Automatic Vehicle Dengan Fuel-Booster Racing

Sasongko,

Arlisa,

Irawan

2023

Otopro

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The performance enhancing engine of automatic vehicle experimentally investigated by adding a fuel-booster. The study aims to improve the combustion matic engine Honda by adding the fuel addictive reactant. The existence of fuel-addictive reactants enhances engine combustion. Besides that, the high octane number of fuel could be optimized during chemical reactions. Thus, the study investigates the matic motorcycle engine at steady operation. The experiment methods vary the fuel additive concentration. The fuel addictive varied is Eco racing to percentile. Thus, the engine performed by varying sparks (racing spark and standard spark). The engine of matic motorcycle is investigated. The engine performance is studied at the stand dyno test. The specific fuel consumption is scaled by a litre of Pertalite. The gas emissions were probed by a gas analyser. The investigation is conducted by three time replication. The result shows the fuel-addictive reactant (Eco racing) performs the best contributions during an iridium spark installed at the engine. Thus, the engine power was detected at 7,5 Hp. Torque resulted by 26,68 Nm; specific fuel consumption was at 0,048 gram,/Hp.s. Engine-Rpm of 6000 emits CO 0,27%, HC 147 ppm, CO2 12,0 %, dan O2 20,84 %. Those gas concentrations are still lower and acceptable due to their concentration being lower than that in the national emissions standard.

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Section: Pendahuluanunclassified

Perbaikan Performa Mesin Automatic Vehicle Dengan Fuel-Booster Racing

Sasongko,

Arlisa,

Irawan

2023

Otopro

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“…Alcohol is used in diesel oil mixtures [6], although it is more commonly associated with spark ignition engines as a gasoline mixture [7]- [9] or in a pure state [10], [11]. Ethanol mixed with gasoline leads to fuel separation [12], and high cycle-to-cycle variation due to the different properties [13], [14]. Irrespective of the higher Research Octane Number (RON), which enhances the resistance of ethanol to pressure and prevents autoignition [15], [16], it also has a faster Laminar Flame Speed (LFS) compared to gasoline [17].…”

Section: Introductionmentioning

confidence: 99%

Investigating Knocking Potential, Cycle Stability, and Emission Characteristics in Lean Spark Ignition Engine with Gasoline, Ethanol, and Methanol

Mokhtar,

Sugiarto,

Agama

et al. 2024

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In this paper, an investigation of the use of gasoline-ethanol-methanol on the spark ignition engine is presented, it is not common practice on public roads to use three fuels simultaneously in a spark-ignition engine. Using methanol reduces the ignition delay during combustion, especially at lean air-fuel ratios, and reduces knocking potential in small amounts. The best result ignition delay with value λ= 1,3 obtained in the E5M15 mixture with SoC occurred at 325 CAo, while the value λ= 1,0 also obtained on the same mixture with SoC occurred at 321,5 CAo. The CCV results indicate a more sloping increase in the COV (coefficient of variation) value when using GEM fuel, particularly with the addition of more methanol. The addition of methanol enhances combustion progression and improves the ability of the fuel blend to sustain combustion under lean conditions. Regarding the torque and power values, at λ= 1,0; 1,1; 1,2 are not significantly different, while the value λ= 1,3 is below the other λ values.

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“…[8], US, Canada, India, and other countries in Africa and Latin America. On the other hand, with these advantages, some shortcomings need to be considered to be improved through future research such as separation between the two fuels [9], high cycle-to-cycle variation 2 [10,11], Water Content [12,13], lower LHV [13], and corrosion [14][15][16]. Hence there is a need for adjustments to the machine to make it more optimal.…”

Section: Introductionmentioning

confidence: 99%

Evaluating Lean Combustion Cycle Stability and Emissions in Spark Ignition Engines with Gasoline, Ethanol, and Methanol Blends

Agama,

Sugiarto,

Mokhtar

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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Fuels for vehicles account for a large portion of the world’s total energy demand, which in turn leads to increased carbon emissions. Ethanol and methanol are a fuel with a simple carbon chain and OH- bonds. It has similar properties to gasoline, and ethanol can be made from the fermentation of plant carbohydrates, called bioethanol. The advantage of using bioethanol is that it contributes to carbon neutrality. This paper will investigate the use of three manually blended gasoline ethanol and methanol (GEM) fuels in a spark ignition engine to address cycle-to-cycle variation (CCV), knock potential, and emissions with lean blend conditions. In the experiments conducted, the air-fuel ratio was conditioned lean by utilizing an electronic control unit to adjust the injector spray duration. This experiment provides results that there is a potential for mild knocking on the use of alcohol fuel with lean fuel mixture conditions at engine speed 4000 RPM, while at engine speed 6000 RPM and 8000 RPM the use of GEM tends to be stable, but in the CCV results the increase in COV (coefficient of variation) value using GEM fuel tends to be more sloping, especially with the addition of more methanol. Emission results from the use of GEM produce top emission CO2 value obtained by the E5M15 mixture at λ=1.2 and an engine speed of 8000 RPM, with a value of 13.75% and then peak CO2 emissions at a value of λ = 1.2 whereas in the use of pure gasoline peak CO2 is at a value of λ = 1.1.

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The effect of additive on combustion characteristics and cycle to cycle variations on si engine fueled by gasoline and bioethanol

Cited by 7 publications

References 10 publications

Perbaikan Performa Mesin Automatic Vehicle Dengan Fuel-Booster Racing

Perbaikan Performa Mesin Automatic Vehicle Dengan Fuel-Booster Racing

Investigating Knocking Potential, Cycle Stability, and Emission Characteristics in Lean Spark Ignition Engine with Gasoline, Ethanol, and Methanol

Evaluating Lean Combustion Cycle Stability and Emissions in Spark Ignition Engines with Gasoline, Ethanol, and Methanol Blends

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