Study of the compression ratio influence on the performance of an advanced automotive diesel engine operating in conventional and PCCI combustion mode (Contributo in atti di convegno)

Type
Label
  • Study of the compression ratio influence on the performance of an advanced automotive diesel engine operating in conventional and PCCI combustion mode (Contributo in atti di convegno) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Alternative label
  • Beatrice C., Guido C., Del Giacomo N., Bertoli C. (2008)
    Study of the compression ratio influence on the performance of an advanced automotive diesel engine operating in conventional and PCCI combustion mode
    in Thermo- and Fluid Dynamic Processes in Diesel Engines – THIESEL 2008, Valencia (Spain)
    (literal)
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  • Beatrice C., Guido C., Del Giacomo N., Bertoli C. (literal)
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  • ISBN 978-84-8363-313-7. (literal)
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  • The present paper, carried out in a collaborative project between Istituto Motori and Centro Ricerche Fiat, describes a detailed experimental analysis on the effect of the compression ratio on the performance of a diesel engine operating both with an EURO 4 calibration (conventional combustion) and with an advanced low NOx calibration, approaching the estimated EURO 6 emission limits (PCCI combustion). The employed engine was the four-cylinder FIAT 1.9 Liter 16 Valve MultiJet. Starting from a reference engine configuration with a compression ratio of 16.5, the compression ratio was reduced in two steps to 15.5 and 14.5 respectively. Each compression ratio value was characterized in terms of thermodynamic parameters, emissions and fuel consumption in some operating test points representative of the engine behaviour running on the NEDC cycle. The results allowed the definition of the optimum range values of the compression ratio able to minimize the NOxparticulate trade-off coupled with acceptable increment in unburned compound emissions (HCs+CO) and specific fuel consumption, helping to the definition of the guide-lines for the future EURO 6 engine design. (literal)
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  • Istituto Motori, CNR, Napoli, Italia (literal)
Titolo
  • Study of the compression ratio influence on the performance of an advanced automotive diesel engine operating in conventional and PCCI combustion mode (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#isbn
  • 978-84-8363-313-7 (literal)
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