http://www.cnr.it/ontology/cnr/individuo/prodotto/ID254716
Combustion efficiency and engine out emissions of a S.I. engine fueled with alcohol/gasoline blends (Articolo in rivista)
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- Combustion efficiency and engine out emissions of a S.I. engine fueled with alcohol/gasoline blends (Articolo in rivista) (literal)
- Anno
- 2013-01-01T00:00:00+01:00 (literal)
- Alternative label
M.A.Costagliola, L.De Simio, s.Iannaccone, M.V.Prati (2013)
Combustion efficiency and engine out emissions of a S.I. engine fueled with alcohol/gasoline blends
in Applied energy
(literal)
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- M.A.Costagliola, L.De Simio, s.Iannaccone, M.V.Prati (literal)
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- Titolo
- Combustion efficiency and engine out emissions of a S.I. engine fueled with alcohol/gasoline blends (literal)
- Abstract
- In this experimental work, the influence of some bio-fuels on the spark-ignition engine combustion efficiency
and engine-out emissions was investigated. A conventional 1.6 l port injection engine was tested
over steady-states, with some bio-ethanol/gasoline blends (0, 10, 20, 30, and 85 vol% of ethanol in gasoline)
and with a 10 vol% of n-butanol in gasoline. Study of combustion development was made through
the heat release analysis of pressure cycles measured in combustion chamber. Regulated emissions,
unregulated organics (Polycyclic Aromatic Hydrocarbons, carbonyl compounds and Volatile Organic
Compounds) and particulate were measured. Particulate was characterized in terms of total particle
number (PN) and size distribution between 7 nm up to 10 lm. The tests were carried out at stoichiometric
conditions in closed loop and spark advance was optimized with a calibration tool software in order
to have the same peak pressure position. By fueling the alcohol blends, the engine-out particulate emissions
are strongly reduced compared to gasoline. The PN reduction percentage ranges between 60% and
90%. The benefits also concern some gaseous unregulated species very harmful for humans, such as benzene
and benzo(a)pyrene (reduction of almost 50% and 70% respectively). The highest oxygen content of
alcohol blends, instead, provides an increasing of the total carbonylic emissions. (literal)
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