http://www.cnr.it/ontology/cnr/individuo/prodotto/ID198157
Analysis of a Diesel engine combustion using imaging and independent component analysis (Articolo in rivista)
- Type
- Label
- Analysis of a Diesel engine combustion using imaging and independent component analysis (Articolo in rivista) (literal)
- Anno
- 2013-01-01T00:00:00+01:00 (literal)
- Alternative label
Katarzyna Bizon, Simone Lombardi, Gaetano Continillo, Ezio Mancaruso, Bianca Maria Vaglieco (2013)
Analysis of a Diesel engine combustion using imaging and independent component analysis
in Proceedings of the Combustion Institute
(literal)
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- Katarzyna Bizon, Simone Lombardi, Gaetano Continillo, Ezio Mancaruso, Bianca Maria Vaglieco (literal)
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- Rivista
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- Katarzyna Bizon - Università del Sannio - Benevento, Italy
Simone Lombardi - Università del Sannio - Benevento, Italy
Gaetano Continillo - Università del Sannio - Benevento, Italy (literal)
- Titolo
- Analysis of a Diesel engine combustion using imaging and independent component analysis (literal)
- Abstract
- This paper reports on the first attempt of application of independent component analysis (ICA) to 2D
images of combustion-related luminosity. The images are acquired from an optically accessible Diesel
engine equipped with the common rail injection system and cylinder head of a most recent generation Euro
5 engine. The original data, from a sequence of crank-angle resolved images, are treated by ICA in order to
identify leading independent structures. Two main independent components (IC) are extracted from sets of
luminosity images, and the coefficients of the ICs are then used for further analysis, to study the transient
during a single cycle, and for the assessment of cycle variability, along with data of dynamic in-cylinder
pressure, rate of heat release and integral luminosity. In the analysis of a single cycle, the two independent
components appear to be clearly separated and related to combustion events near the fuel jets and near the
bowl walls, respectively. The analysis over the cycles separates the mean combustion luminosity field at
each crank angle from the random, erratic flame structures related to cycle variability. Quantitative analysis
of the statistics of the two independent components confirms the lower variability of the jet flames and
the high variability of combustion near the chamber walls. This is in agreement with the idea that the extensive
impingement of the fuel sprays on to the piston bowl walls in modern, high-speed, direct injection Diesel
engines is responsible for increase of unburned hydrocarbons and smoke emissions. The developed
procedure, including the ICA, is fast and reliable and can be prospectively applied to many different optical
engine configurations. (literal)
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