This paper discusses the compression ratio influence on maximum load of a Natural Gas HCCI engine. A modified Volvo TD100 truck engine is controlled in a closed-loop fashion by enriching the Natural Gas mixture with Hydrogen. The first section of the paper illustrates and discusses the potential of using hydrogen enrichment of natural gas to control combustion timing. Cylinder pressure is used as the feedback and the 50 percent burn angle is the controlled parameter. Full-cycle simulation is compared to some of the experimental data and then used to enhance some of the experimental observations dealing with ignition timing, thermal boundary conditions, emissions and how they affect engine stability and performance. High load issues common to HCCI are discussed in light of the inherent performance and emissions tradeoff and the disappearance of feasible operating space at high engine loads. The problems of tighter limits for combustion timing, unstable operational points and physical constraints at high loads are discussed and illustrated by experimental results. Finally, the influence on operational limits, i.e. emissions peak pressure rise and peak cylinder pressure, from compression ratio at high load are discussed.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Compression Ratio Influence on Maximum Load of a Natural Gas Fueled HCCI Engine


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2002 World Congress & Exhibition ; 2002



    Publication date :

    2002-03-04




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Compression ratio influence on maximum load of a natural gas fueled HCCI engine

    Olsson,J.O. / Tunestal,P. / Johansson,B. et al. | Automotive engineering | 2002


    Influence fo the compression ratio on the performance and emissions of a mini HCCI engine fueled with diethyl ether

    Manente,V. / Tunestal,P. / Johansson,B. et al. | Automotive engineering | 2007


    Influence of the Compression Ratio on the Performance and Emissions of a Mini HCCI Engine Fueled Ether with Diethyl

    Johansson, Bengt / Tunestål, Per / Manente, Vittorio | SAE Technical Papers | 2007


    Using Pilot Diesel Injection in a Natural Gas Fueled HCCI Engine

    Micklow, Gerald J. / Willi, Martin L. / Fiveland, Scott B. et al. | SAE Technical Papers | 2002


    Using pilot diesel injection in a natural gas fueled HCCI engine

    Gong,W. / Bell,S.R. / Micklow,G.J. et al. | Automotive engineering | 2002