The lean operating limit of a rotary combustion engine was extended by hydrogen-enriched fuel to equivalence ratios as low as 0.49. Reductions in NOx and CO emissions from baseline conditions were observed, although HC emissions increased significantly.The effect of hydrogen-induced lean combustion on indicated thermal efficiency was found to be dependent on the change in H2/C8H18 fraction with decreasing equivalence ratio. An increase in H2/C8H18 fraction with decreasing equivalence ratio had little effect on indicated thermal efficiency, whereas a constant or decreasing H2/C8H18 fraction led to a marked decrease. The brake thermal efficiency when compared at constant power increased marginally.


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    Title :

    Rotary Engine Combustion With Hydrogen Addition


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    National West Coast Meeting ; 1976



    Publication date :

    1976-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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