http://www.cnr.it/ontology/cnr/individuo/prodotto/ID254822
GTL (Gas To Liquid) and RME (Rapeseed Methyl Ester) combustion analysis in a trasparent CI (compression ignition) engine by means of IR (infrared) digital imaging (Articolo in rivista)
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- GTL (Gas To Liquid) and RME (Rapeseed Methyl Ester) combustion analysis in a trasparent CI (compression ignition) engine by means of IR (infrared) digital imaging (Articolo in rivista) (literal)
- Anno
- 2013-01-01T00:00:00+01:00 (literal)
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Ezio Mancaruso, Luigi Sequino, Bianca Maria Vaglieco (2013)
GTL (Gas To Liquid) and RME (Rapeseed Methyl Ester) combustion analysis in a trasparent CI (compression ignition) engine by means of IR (infrared) digital imaging
in Energy (Oxf.)
(literal)
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- Ezio Mancaruso, Luigi Sequino, Bianca Maria Vaglieco (literal)
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- Titolo
- GTL (Gas To Liquid) and RME (Rapeseed Methyl Ester) combustion analysis in a trasparent CI (compression ignition) engine by means of IR (infrared) digital imaging (literal)
- Abstract
- In the present paper, (infrared) IR measurements were performed in order to study the behaviour of
biofuels combustion in a transparent Euro 5 diesel engine operating in premixed mode. (Commercial
diesel fuel) REF, (Gas To Liquid) GTL and (Rapeseed Methyl Ester) RME biofuels have been used. An
elongated single-cylinder transparent engine equipped with the multi-cylinder head of commercial
passenger car and (common rail) CR injection systemwas used. A sapphire window was set in the bottom
of the combustion chamber, and a sapphire ring was placed in the upper part of the cylinder. Measurements
were carried out through both accesses by means of high-speed infrared digital imaging
system. IR camera was able to detect the emitted light in the wavelength range 1.5e5 mm. Infrared
imaging allowed acquiring larger amount of information than UV (ultraviolet) and visible cameras. In
particular the IR camerawas used for the characterization of injection and combustion process. Analysing
the IR images, it was possible to identify clearly the seven jets of vaporized fuel that react with air in the
bowl. During the late combustion phase, the IR image showed a good capability to follow the hot burned
gas both in the bowl and above the piston. The IR camera has shown high sensibility permitting to follow
carefully the soot oxidation process within the cylinder. The GTL shows an advance of about 8? crank
angles in the evolution of combustion process with respect to the RME. On the contrary a longer chemical
activity has been detected for the latter biofuel. Finally, the IR camera was revealed very useful tool to
characterize the combustion process for long time allowing high quality of the results. Images of the
reactions that happen in the combustion chamber and above the piston head were clearly acquired even
if the optical windows were obscured by the soot produced from the previous combustion cycles (literal)
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