Utilization of waste glycerin to fuelling of spark ignition engines

Stelmasiak, Z.; Pietras, Dariusz

doi:10.1088/1757-899x/148/1/012087

Cited by 11 publications

(6 citation statements)

References 3 publications

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“…A number of dual-fuel solutions also exist for spark ignition engines, including gasoline (DI) and ethanol (PFI) [10], or in reverse configuration [11], gasoline (PFI) and diesel oil (DI) [12], gasoline (DI) and LPG (PFI) [13], gasoline (DI or PFI) and hydrogen (PFI or DI) [2], and methanol (DI) and hydrogen (PFI) [14]. Work has also been carried out using other fuels with the above-mentioned injection systems for these fuels [15,16].…”

Section: Introductionmentioning

confidence: 99%

Combustion Thermodynamics of Ethanol, n-Heptane, and n-Butanol in a Rapid Compression Machine with a Dual Direct Injection (DDI) Supply System

Pielecha

Wierzbicki

Sidorowicz³

et al. 2021

Energies

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The development of internal combustion engines involves various new solutions, one of which is the use of dual-fuel systems. The diversity of technological solutions being developed determines the efficiency of such systems, as well as the possibility of reducing the emission of carbon dioxide and exhaust components into the atmosphere. An innovative double direct injection system was used as a method for forming a mixture in the combustion chamber. The tests were carried out with the use of gasoline, ethanol, n-heptane, and n-butanol during combustion in a model test engine—the rapid compression machine (RCM). The analyzed combustion process indicators included the cylinder pressure, pressure increase rate, heat release rate, and heat release value. Optical tests of the combustion process made it possible to analyze the flame development in the observed area of the combustion chamber. The conducted research and analyses resulted in the observation that it is possible to control the excess air ratio in the direct vicinity of the spark plug just before ignition. Such possibilities occur as a result of the properties of the injected fuels, which include different amounts of air required for their stoichiometric combustion. The studies of the combustion process have shown that the combustible mixtures consisting of gasoline with another fuel are characterized by greater combustion efficiency than the mixtures composed of only a single fuel type, and that the influence of the type of fuel used is significant for the combustion process and its indicator values.

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Section: Introductionmentioning

confidence: 99%

Combustion Thermodynamics of Ethanol, n-Heptane, and n-Butanol in a Rapid Compression Machine with a Dual Direct Injection (DDI) Supply System

Pielecha

Wierzbicki

Sidorowicz³

et al. 2021

Energies

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“…Nucleation particles are particularly formed by condensation within a few seconds after emissions in ambient air. Particles in the accumulation mode are primarily formed in the combustion chamber [20,28]. Research shows that ultrafine particles may be associated with cardiovascular diseases, while the mass of particles is more important for respiratory effects [29].…”

Section: Introductionmentioning

confidence: 99%

Number and mass analysis of particles emitted by aircraft engine

Jasiński

2017

MATEC Web Conf.

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Exhaust emissions from aircraft is a complex issue because of the limited possibility of measurements in flight conditions. Most of the studies on this subject were performed on the basis of stationary test. Engine certification data is used to calculate total emissions generated by air transport. However, it doesnt provide any information about the local effects of air traffic. The main threat to local communities is particulate matter emissions, which adversely affects human health. Emissions from air transport affect air quality, particularly in the vicinity of the airports; it also contributes to the greenhouse effect. The article presents the measurement results of the concentration and size distribution of particles emitted during aircraft landing operation. Measurements were carried out during the landings of aircraft at a civilian airport. It was found that a single landing operation causes particle number concentration value increase of several tenfold in a short period of time. Using aircraft engine certification data, the methodology for determination of the total number of particles emitted during a single landing operation was introduced.

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“…The engine thermal efficiency is strongly dependent on the compression ratio [2,3] and used fuel [4][5][6]. The high octane number of CNG (120-130) allows for compression ratio of up to 16, without any fear of engine knocking [1].…”

Section: Introductionmentioning

confidence: 99%

Turbulent spark-jet ignition in SI gas fuelled engine

et al. 2017

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Abstract. The article contains a thermodynamic analysis of a new combustion system that allows the combustion of stratified gas mixtures with mean air excess coefficient in the range 1.4-1.8. Spark ignition was used in the pre-chamber that has been mounted in the engine cylinder head and contained a rich mixture out of which a turbulent flow of ignited mixture is ejected. It allows spark-jet ignition and the turbulent combustion of the lean mixture in the main combustion chamber. This resulted in a two-stage combustion system for lean mixtures. The experimental study has been conducted using a single-cylinder test engine with a geometric compression ratio  = 15.5 adapted for natural gas supply. The tests were performed at engine speed n = 2000 rpm under stationary engine load when the engine operating parameters and toxic compounds emissions have been recorded. Analysis of the results allowed to conclude that the evaluated combustion system offers large flexibility in the initiation of charge ignition through an appropriate control of the fuel quantities supplied into the pre-chamber and into the main combustion chamber. The research concluded with determining the charge ignition criterion for a suitably divided total fuel dose fed to the cylinder.

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Utilization of waste glycerin to fuelling of spark ignition engines

Cited by 11 publications

References 3 publications

Combustion Thermodynamics of Ethanol, n-Heptane, and n-Butanol in a Rapid Compression Machine with a Dual Direct Injection (DDI) Supply System

Combustion Thermodynamics of Ethanol, n-Heptane, and n-Butanol in a Rapid Compression Machine with a Dual Direct Injection (DDI) Supply System

Number and mass analysis of particles emitted by aircraft engine

Turbulent spark-jet ignition in SI gas fuelled engine

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