This paper describes the development of a numerical optimization technique for in-cylinder processes of SI engines, which consists of an in-cylinder processes model and an optimization model.The in-cylinder processes model simulates the full thermodynamic cycle containing spark ignition, turbulent flame propagation, heat release, nitric oxide emission and knock.The optimization model uses a nonlinear mathematical programming method, in which effective specific fuel consumption, NO emission and knock index are respectively regarded as objective function or constraint function, spark timing, compression ratio, equivalence ratio and valve timings as independent variables.The numerical optimization for a SI engine is carried out and is validated by experimental result. The engine performances are evidently improved by the optimization.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Numerical Optimization for In-Cylinder Processes of a Spark Ignition Engine


    Additional title:

    Sae Technical Papers


    Contributors:
    Wang, Jingyie (author) / Han, Shu (author) / Bi, Xiaoping (author)

    Conference:

    International Fuels & Lubricants Meeting & Exposition ; 1994



    Publication date :

    1994-10-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Numerical Simulation of a Four Cylinder, 16 Valve, Spark-Ignition Engine

    Fontana, G. / Galloni, E. / Jannelli, E. et al. | British Library Conference Proceedings | 1999


    Numerical simulation of a four cylinder, 16 valve, spark-ignition engine

    Fontana,G. / Galloni,E. / Jannelli,E. et al. | Automotive engineering | 1999


    In-Cylinder Flow Measurements in a Transparent Spark Ignition Engine

    Chraniotis, Anastasios / Tourlidakis, Antonios / Kolokotronis, Dimitrios et al. | SAE Technical Papers | 2019



    Emissions from a Direct-Cylinder Water-Injected Spark-Ignition Engine

    Colony, C. M. / Lestz, S. S. / Meyer, W. E. | SAE Technical Papers | 1972