Performances of gasoline engine fueled by gasoline into cylinder and pure hydrogen or simulated reformer gas (H2, CO, CO2, and CH4) into intake manifold were evaluated in view of improvement of thermal efficiency of spark ignition engine. Commercial spark ignition direct injection gasoline engine was modified to install injection system of commercial CNG vehicle. Test engine can be controlled by homogeneous and stratified charged combustion for gasoline. Thermal efficiency of the engine operated with gasoline and hydrogen or reformer gas is much higher than that with gasoline under low and mid load conditions. Especially the improvement of thermal efficiency with gasoline and hydrogen on lean burn condition is less than 40% that with gasoline on stichometric condition under low load condition. The operating range of the engine operated with hydrogen is limited due to knocking, but the range is extended by the addition of gasoline. NOx emission from the engine operated with gasoline and hydrogen or reformer gas is almost zero under low load condition, but the emission sharply increases with increase in load. The combustion on gasoline homogeneous and hydrogen homogeneous is higher in NOx emission and lower in thermal efficiency than that on gasoline stratified and hydrogen homogeneous.


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    Titel :

    Effect of Hydrogen Rich Gas and Gasoline Mixed Combustion on Spark Ignition Engine


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    Powertrain & Fluid Systems Conference and Exhibition ; 2006



    Erscheinungsdatum :

    16.10.2006




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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