Analysis of a Prototype High-Pressure “Hollow Cone Spray” Diesel Injector Performance in Optical and Metal Research Engines

Tunestål, Per; Blasio, Gabriele Di; Mancaruso, Ezio; Sequino, Luigi; Vaglieco, Bianca Maria

doi:10.4271/2017-24-0073

Cited by 15 publications

(7 citation statements)

References 21 publications

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“…An encoder autonics (6) and sensor for temperature (7) were mounted on the flywheel (5) and the engine (4), respectively. The fuel travels to the fuel filter (10) from the fuel tank (8) and then to the fuel pump (9), where it is injected into the fuel injectors (11). The box to filter the air (15) and the throttle allow air to enter the intake pipe (16).…”

Section: Experiments Setupmentioning

confidence: 99%

“…The torque resistance for the experiment was supplied by a controller for testing systems (1) and a dynamometer from the AVL company (MCA325MO2) gine and dynamometer are connected by coupling (3). An encoder autonics (6) an for temperature (7) were mounted on the flywheel (5) and the engine (4), respectiv fuel travels to the fuel filter (10) from the fuel tank (8) and then to the fuel pump (9 it is injected into the fuel injectors (11). The box to filter the air (15) and the throt air to enter the intake pipe (16).…”

Section: Experiments Setupmentioning

confidence: 99%

“…The optimal injection and ignition timing for a methanol engine was investigated by Li et al They discovered that these timings had a major impact on methanol engine combustion and exhaust emissions [10]. A fuel injection system with a high-pressure injector and with a hollow cone spray was studied by Beatrice et al [11,12]. They report that high injector pressure reduces peak firing pressure, increasing fuel efficiency.…”

Section: Introductionmentioning

confidence: 99%

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A Study on the Effect of Ignition Timing on Residual Gas, Effective Release Energy, and Engine Emissions of a V-Twin Engine

Yhcmute

Khoa

2021

Energies

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The ignition timing of an SI engine is a critical parameter. The influence on residual gas, effective release energy, and emissions characteristics of ignition timing for the V-twin engine is investigated in this research. For this purpose, an experiment system was built with a dynamometer, and a model of the simulation was created. In this research, the ignition timing was varied from 10 to 45 degrees BTDC under full load operating conditions, with engine speeds ranging from 3000 to 10,000 rpm. Based on the output data, ignition timing has a major impact on the proportion of residual gas, efficient release energy, performance of the engine, and the emission characteristics. The smallest proportion of residual gas was 0.07% at 8000 rpm and ignition timing of 10 °CA. At 15 °CA of ignition timing, the highest efficient release energy was 0.817 kJ at 4000 rpm, while at 8000 rpm and 25 °CA of ignition timing, it was 0.8305 kJ. At 6000 rpm, the greatest braking torque of the engine was 21.57 Nm, while the minimal BSFC was 343.821 g/kWh. The nitrogen oxide emission and HC emission increase with the advanced ignition timing, but CO emission decreases.

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Section: Experiments Setupmentioning

confidence: 99%

Section: Experiments Setupmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Study on the Effect of Ignition Timing on Residual Gas, Effective Release Energy, and Engine Emissions of a V-Twin Engine

Yhcmute

Khoa

2021

Energies

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“…Academia and industry are working on developing innovative diesel combustion systems, able to improve the CO 2 emissions, as well as the NO x -Soot trade-offs such as specific bowl design, innovative fuel injection systems, and injection strategy. These technologies could be used also to improve efficiency and performance combined with the alternative fuels in advanced combustion modes such as partially premixed combustion (PPC) and Dual Fuel systems [26,27]. The methods presented here will be useful even in combination with this type of research, as in each instance, optimal fuel compositions will have to be calculated.…”

Section: Further Research Questionsmentioning

confidence: 99%

Finding the Optimal Fatty Acid Composition for Biodiesel Improving the Emissions of a One-Cylinder Diesel Generator

et al. 2021

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Nitrogen oxides (NOx) and particulate matter (PM) currently are the main pollutants emitted by diesel engines. While there is a start in using hybrid and electric cars, ships will still be fueled by mineral oil products. In the quest to achieve zero-pollution and carbon-free shipping, alternative forms of energy carriers must be found to replace the commonly used mineral oil products. One of the possible alternative fuels is biodiesel. This paper explores the optimization of the composition of biodiesel in order to reduce the concentration of particulate matter and NOx in exhaust gases of a one-cylinder diesel generator.

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“…An increase in global warming in the past few decades is mainly due to the exhaustive use of fossil fuel resources for human beings' comfort [1][2][3][4][5]. The application of CI engines is increasing daily in many sectors and contributes to generating electricity and transport [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Effect of Parameters Behavior of Simarouba Methyl Ester Operated Diesel Engine

N¹,

Banapurmath

Chandrashekar³

et al. 2021

Energies

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Being an energy source of another origin, the compression ignition (CI) engine’s typical design parameters might not suit Simarouba oil methyl ester (SuOME). Present experimental investigation targets are determining the effects of engine design parameters, including fuel injection pressure and nozzle geometry, on the engine, concerning performance and emissions such as carbon monoxide (CO), unburnt hydrocarbon (HC), oxides of nitrogen (NOx), and smoke opacity, with SuOME as fuel. Comparisons of brake thermal efficiency (BTE) and different emissions from the engine tailpipe were performed for different fuel injection pressures and a number of injector holes and diameter of orifices were opened in the injector to find the optimum combination to run the engine with SuOME. It was observed that the combined effect of an increase in injection pressure of 240 bar from 205 bar, and increasing number of injector holes from three to six with reduced injector hole diameters from 0.2 to 0.3 mm, recorded higher brake thermal efficiency with reduced emission levels for the SuOME mode of operation compared to the baseline standard operation with SuOME. For 240 bar compared to 205 bar of injection pressure (IP) for SuOME, the BTE increased by 2.35% and smoke opacity reduced by 1.45%. For six-hole fuel injectors compared to three-hole injectors, the BTE increased by 3.19%, HC reduced by 9.5%, and CO reduced by 14.7%. At 240 bar IP, with the six-hole injector having a 0.2 mm hole diameter compared to the 0.3 mm hole diameter, the BTE increased by 5%, HC reduced by 5.26%, CO reduced by 25.61%, smoke reduced by 10%, while NOx increased marginally by 0.27%. Hence, the six-hole FI, 240 IP, 0.2 mm FI diameter holes are suitable for diesel engine operation fueled by Simarouba biodiesel.

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Analysis of a Prototype High-Pressure “Hollow Cone Spray” Diesel Injector Performance in Optical and Metal Research Engines

Cited by 15 publications

References 21 publications

A Study on the Effect of Ignition Timing on Residual Gas, Effective Release Energy, and Engine Emissions of a V-Twin Engine

A Study on the Effect of Ignition Timing on Residual Gas, Effective Release Energy, and Engine Emissions of a V-Twin Engine

Finding the Optimal Fatty Acid Composition for Biodiesel Improving the Emissions of a One-Cylinder Diesel Generator

Effect of Parameters Behavior of Simarouba Methyl Ester Operated Diesel Engine

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