The Representative Interactive Flamelet (RIF) - model has established itself as a model well suited for capturing conventional non-premixed combustion in diesel engines. There are concerns about applying the concept to model combustion modes characterized by high degrees of premixing, since it is argued that the fast-chemistry assumption, on which the model is based, breaks down. However, the level of premixing at which this occurs is still not well established. In this paper the model is successfully applied to the so-called Premixed Charge Compression Ignition (PCCI) mode of combustion, characterized by relatively early injection timings, high EGR, and cooled intake air. For very advanced injection timings, an alternative modeling approach is developed. This is based on a sequential treatment of the in-cylinder processes, where the injection process and fluid dynamics are modeled using the three-dimensional CFD-code GMTEC and the chemical reactions are treated in a multi-zone chemistry code, developed at GM. The computations are compared to experiments conducted in a single-cylinder heavy-duty diesel engine.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Modeling Approaches for Premixed Charge Compression Ignition Combustion


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2005 World Congress & Exhibition ; 2005



    Publication date :

    2005-04-11




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Modeling approaches for premixed charge compression ignition combustion

    Hergart,C.A. / Barths,H. / Siewert,R.M. et al. | Automotive engineering | 2005


    Combustion and Emission Characteristics of Premixed Charge Compression Ignition Engine

    Zhao, Y. / Wang, Y. / Lei, X. et al. | British Library Online Contents | 2014


    Nonlinear model-based control of combustion timing in premixed charge compression ignition

    Kocher, Lyle E / Hall, Carrie M / Van Alstine, Dan et al. | SAGE Publications | 2014


    Nonlinear model-based control of combustion timing in premixed charge compression ignition

    Kocher,L.E. / Hall,C.M. / Van Alstine,D. et al. | Automotive engineering | 2014