This study investigates the performance of a diesel engine fueled with naphtha under different load by varying injection parameters and exhaust gas recirculation (EGR) rate. The experiments were conducted on a 1.9-liter common rail diesel engine with a compression ratio of 17.5. Naphtha with a research octane number of 60.5 was tested. Three multi-injection strategies were designed. Each injection strategy, aided with EGR, conducts a characteristic combustion mode. Multi-injection strategies and single-injection strategy were tested and compared at one operating point under different main injection timing and EGR conditions. Results indicate that the well-designed multi-injection strategy has advantages over the single injection strategy in lowering noise, emissions and improving combustion efficiency. Among the three strategies, the strategy with 15-degree pilot timing and 2mg/cycle pilot injection could achieve both low NOx and PM emissions without sacrificing much fuel efficiency. For example, one of the operating points reached with 49% EGR rate has mean IMEP of 5.68 bar, NOx emission of 20ppm, PM emission of 1.8×106/mm3, HC emission of 45 ppm and the rate of pressure rise of 1.9 bar/°CA. Meanwhile 51.57% indicated thermal efficiency is achieved.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Injection Strategy Study of Compression Ignition Engine Fueled with Naphtha


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Yao, Changsheng (Autor:in) / Yang, Fuyuan (Autor:in) / Huang, Haiyan (Autor:in) / Wang, Jinli (Autor:in) / Ouyang, Minggao (Autor:in)

    Kongress:

    JSAE/SAE 2015 International Powertrains, Fuels & Lubricants Meeting ; 2015



    Erscheinungsdatum :

    2015-09-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    Dual Fuel Injection Nozzle for Methanol Fueled Compression Ignition Engine Operation

    Ingoni, Alberto Cassiani / Ryan, Thomas W. / Callahan, Timothy J. | SAE Technical Papers | 1991


    Dual fuel injection nozzle for methanol fueled compression ignition engine operation

    Ryan,T.W. / Callahan,T.J. / Ingoni,A.C. et al. | Kraftfahrwesen | 1991


    Hydrogen Fueled Homogeneous Charge Compression Ignition Engine

    Bika, Anil Singh / Kittelson, David / Acevedo, Helmer et al. | SAE Technical Papers | 2011


    Hydrogen Fueled Homogeneous Charge Compression Ignition Engine

    Bika, A.S. / Franklin, L. / Acevedo, H. et al. | British Library Conference Proceedings | 2011