A mean value soot model (MVSM) was developed and validated for the realtime prediction of the raw, engine-out soot emissions from common rail diesel engines. Through the consideration of five representative states during the combustion cycle, the developed MVSM determines the engine out soot emissions based on the soot formation and oxidation processes, using only parameters available from a standard engine control unit. 16 model parameters are used to describe the engine, fuel, and combustion characteristics, and must be determined for each engine and fuel combination. The MVSM was parameterized and validated using the measured soot emissions from two different engines operating with a total of three different fuels. After parameterization, the MVSM was capable of qualitatively and quantitatively reproducing the soot emissions for operating points throughout the entire operating map, including for operating regimes not considered during the parameterization. From sensitivity analyses, it was found that the calculated soot mass is very dependant on the temperature at intake valve closing, and that oxidation is under-represented by the model.


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    Title :

    Development and Validation of a Phenomenological Mean Value Soot Model for Common-Rail Diesel Engines


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE World Congress & Exhibition ; 2009



    Publication date :

    2009-04-20




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Development and validation of a phenomenological mean value soot model for common-rail diesel engines

    Kirchen,P. / Boulouchos,K. / ETH Zuerich,CH | Automotive engineering | 2009


    2009-01-1277 Development and Validation of a Phenomenological Mean Value Soot Model for Common-Rail Diesel Engines

    Kirchen, P. / Boulouchos, K. / Society of Automotive Engineers | British Library Conference Proceedings | 2009


    Soot Emission Measurements and Validation of a Mean Value Soot Model for Common-Rail Diesel Engines during Transient Operation

    Boulouchos, Konstantinos / Kirchen, Patrick / Obrecht, Peter | SAE Technical Papers | 2009