Optical diagnostics of the combustion process in a PFI SI boosted engine fuelled with butanol–gasoline blend (Contributo in atti di convegno)

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  • Optical diagnostics of the combustion process in a PFI SI boosted engine fuelled with butanol–gasoline blend (Contributo in atti di convegno) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Alternative label
  • Tornatore C., Marchitto L., Valentino G., Esposito Corcione F., Merola S.S. (2011)
    Optical diagnostics of the combustion process in a PFI SI boosted engine fuelled with butanol–gasoline blend
    in 24th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of En-ergy Systems - ECOS 2011, Novi Sad (Serbia)
    (literal)
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  • Tornatore C., Marchitto L., Valentino G., Esposito Corcione F., Merola S.S. (literal)
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  • pp. 1595-1607. (literal)
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  • The addition of alcohol to conventional hydrocarbon fuels for a spark-ignition engine can increase the fuel octane rating and the power for a given engine displacement and compression ratio. In this work, the influence of butanol addition to gasoline in a port fuel-injection, spark ignition engine was investigated. The experiments were realized in a single cylinder ported fuel injection SI engine with an external boosting device. The optical accessible engine was equipped with the head of commercial SI turbocharged engine with the same geometrical specifications (bore, stroke, compression ratio) as the research engine. The effect on the spark ignition combustion process of 40% of n-butanol blended in volume with 60% pure gasoline (BU40) was investigated by cycle resolved visualization. The engine worked at low speed, medium boosting and wide open throttle. Changes in the spark timing, fuel injection phasing were considered. Comparisons between the parameters related to the flame luminosity and to the pressure signals were performed. Butanol blends allowed working in more advanced spark timing without negative effects due to the abnormal combustion. The duration of injection for BU40 was increased to obtain stoichiometric mixture. In open valve injection condition, the fuel deposits on intake manifold and piston surfaces decreased, allowing a reduction in fuel consumption. BU40 granted the performance levels of gasoline and in open valve injection allowed to minimize the abnormal combustion effects including the emission of ultrafine carbonaceous particles at the exhaust. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Istituto Motori, CNR, Napoli. (literal)
Titolo
  • Optical diagnostics of the combustion process in a PFI SI boosted engine fuelled with butanol–gasoline blend (literal)
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